Downlink control information size alignment, determination method and apparatus

Abstract

This disclosure relates to the field of communication technology, specifically to a method and apparatus for aligning and determining downlink control information (DCI) sizes. The downlink control information size alignment method includes: receiving first downlink control information for scheduling multiple cells; determining the size alignment of traditional 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, the total size of the first downlink control information and the aligned traditional downlink control information is less than or equal to a first threshold. According to this disclosure, it is beneficial to ensure that the total size of DCIs in at least one first cell is not too large, thereby avoiding excessive complexity in terminal blind detection of DCIs. It also avoids the problem of different sizes of MC-DCIs needing to be sent in different cells when network devices schedule multiple cells through a single MC-DCI.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to a method for determining downlink control information size alignment, a method for determining downlink control information size alignment, a device for determining downlink control information size alignment, a device for determining downlink control information size alignment, a system for determining downlink control information size alignment, a communication device, and a computer-readable storage medium. Background Technology

[0002] In related technologies, scheduling a single downlink control information (DCI) within a cell only allows scheduling data from one cell, such as scheduling the Physical Uplink Shared Channel (PUSCH) or the Physical Downlink Shared Channel (PDSCH). However, with the gradual fragmentation of frequency resources, the demand for simultaneously scheduling data from multiple cells will gradually increase. Summary of the Invention

[0003] The embodiments of this disclosure provide a downlink control information size alignment determination method, a downlink control information size alignment method, a downlink control information size alignment determination device, a downlink control information size alignment device, a downlink control information size alignment system, a communication device, and a computer-readable storage medium to solve the technical problems in the related art.

[0004] According to a first aspect of the present disclosure, a method for determining downlink control information size alignment is proposed, executed by a terminal. The method includes: receiving first downlink control information for scheduling multiple cells; determining the size alignment of traditional 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, the total number of the size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold.

[0005] According to a second aspect of the present disclosure, a method for determining downlink control information size alignment is proposed, executed by a terminal. The method includes: receiving first downlink control information for scheduling multiple cells; determining a reference cell in at least one first cell corresponding to the first downlink control information; determining size alignment of traditional downlink control information and the first downlink control information in the reference cell; and determining alignment of traditional downlink control information in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell.

[0006] According to a third aspect of the present disclosure, a downlink control information size alignment method is proposed, which is executed by a network device. The method includes: aligning the size of traditional downlink control information in each cell of a first downlink control information used for scheduling multiple cells, wherein in at least one first cell corresponding to the first downlink control information, the total number of the size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold; and sending the first downlink control information to a terminal.

[0007] According to a fourth aspect of the present disclosure, a downlink control information size alignment method is proposed, executed by a network device. The method includes: determining a reference cell among at least one first cell corresponding to first downlink control information used for scheduling multiple cells; aligning the size of conventional downlink control information and the first downlink control information in the reference cell; and aligning the size of conventional downlink control information in a second cell among at least one first cell, wherein the second cell is a cell other than the reference cell among the first cells; and sending the first downlink control information to a terminal.

[0008] According to a fifth aspect of the present disclosure, a downlink control information size alignment determination apparatus is provided. The apparatus includes: a receiving module configured to receive first downlink control information for scheduling multiple cells; and a processing module configured to determine the size alignment of traditional 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, the total number of the size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold.

[0009] According to a sixth aspect of the present disclosure, a downlink control information size alignment determination apparatus is provided. The apparatus includes: a receiving module configured to receive first downlink control information for scheduling multiple cells; and a processing module configured to determine a reference cell in at least one first cell corresponding to the first downlink control information; determine the size alignment of traditional downlink control information and the first downlink control information in the reference cell; and determine the alignment of traditional downlink control information in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cells.

[0010] According to a seventh aspect of the present disclosure, a downlink control information size alignment apparatus is provided. The apparatus includes: a processing module configured to align the size of conventional downlink control information in each cell of a first downlink control information used for scheduling multiple cells, wherein in at least one first cell corresponding to the first downlink control information, the total number 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; and a sending module configured to send the first downlink control information to a terminal.

[0011] According to an eighth aspect of the present disclosure, a downlink control information size alignment apparatus is provided. The apparatus includes: a processing module configured to determine a reference cell in at least one first cell corresponding to first downlink control information used for scheduling multiple cells; to align the size of conventional downlink control information and the first downlink control information in the reference cell; and to align the size of conventional downlink control information in a second cell in at least one of the first cells, wherein the second cell is a cell other than the reference cell in the first cells; and a sending module configured to send the first downlink control information to a terminal.

[0012] According to a ninth aspect of the present disclosure, a downlink control information size alignment system is proposed, including a terminal and a network device, wherein the terminal is configured to implement the downlink control information size alignment determination method described above, and the network device is configured to implement the downlink control information size alignment method described above.

[0013] According to a tenth aspect of the present disclosure, a communication device is provided, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the aforementioned downlink control information size alignment determination method is implemented.

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

[0015] According to a twelfth aspect of the present disclosure, a computer-readable storage medium is provided for storing a computer program that, when executed by a processor, implements the aforementioned downlink control information size alignment determination method.

[0016] According to a thirteenth aspect of the present disclosure, a computer-readable storage medium is provided for storing a computer program that, when executed by a processor, implements the aforementioned downlink control information size alignment method.

[0017] According to embodiments of this disclosure, a terminal can receive MC-DCI for scheduling multiple cells, determine the multiple cells scheduled by the MC-DCI, and determine the size alignment of legacy DCIs within each of the multiple cells. Since only the size alignment of legacy DCIs within each cell is performed, and the MC-DCI does not participate in the alignment, this simplifies the terminal's alignment process. 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 a first quantity, which helps ensure that the total number of DCI sizes in at least one first cell is not too large, thereby avoiding excessive complexity in the terminal's blind DCI detection.

[0018] Moreover, since only the legacy DCI size is aligned within each cell and the MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells. This avoids the problem that the network devices mentioned above need to send different sizes of MC-DCI in different cells when scheduling multiple cells through one MC-DCI. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram illustrating an application scenario according to an embodiment of the present disclosure.

[0021] Figure 2 This is a schematic flowchart illustrating a method for determining the size alignment of downlink control information according to an embodiment of the present disclosure.

[0022] Figure 3 This is a schematic diagram illustrating another application scenario according to an embodiment of the present disclosure.

[0023] Figure 4 This is a schematic flowchart illustrating a method for determining the size alignment of downlink control information according to an embodiment of the present disclosure.

[0024] Figure 5 This is a schematic diagram illustrating another application scenario according to an embodiment of the present disclosure.

[0025] Figure 6 This is a schematic flowchart illustrating a downlink control information size alignment method according to an embodiment of the present disclosure.

[0026] Figure 7 This is a schematic flowchart illustrating a downlink control information size alignment method according to an embodiment of the present disclosure.

[0027] Figure 8 This is a schematic diagram illustrating the interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0028] Figure 9 This is a schematic diagram illustrating another interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0029] Figure 10 This is a schematic block diagram illustrating a downlink control information size alignment determination device according to an embodiment of the present disclosure.

[0030] Figure 11 This is a schematic block diagram illustrating a downlink control information size alignment determination device according to an embodiment of the present disclosure.

[0031] Figure 12 This is a schematic block diagram illustrating a downlink control information size alignment device according to an embodiment of the present disclosure.

[0032] Figure 13 This is a schematic block diagram illustrating a downlink control information size alignment device according to an embodiment of the present disclosure.

[0033] Figure 14 This is a schematic block diagram illustrating an apparatus for aligning downlink control information sizes according to embodiments of the present disclosure.

[0034] Figure 15 This is a schematic block diagram illustrating an apparatus for determining the size alignment of downlink control information according to embodiments of the present disclosure. Detailed Implementation

[0035] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0036] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0037] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0038] For the sake of brevity and ease of understanding, this document uses the terms "greater than" or "less than", "higher than" or "lower than" to describe size relationships. However, it will be understood by those skilled in the art that the term "greater than" also includes the meaning of "greater than or equal to", and "less than" also includes the meaning of "less than or equal to"; the term "higher than" also includes the meaning of "higher than or equal to", and "lower than" also includes the meaning of "lower than or equal to".

[0039] The embodiments of this disclosure propose downlink control information for scheduling multiple cells, also known as multi-carrier scheduling downlink control information, for example, it can be written as Multi-cell scheduling DCI, or simply MC-DCI. For ease of illustration, some downlink control information used for scheduling multiple cells will be referred to as MC-DCI below.

[0040] Among them, MC-DCI can be used to schedule multiple cells. Specifically, it can refer to the data used to schedule multiple cells, such as the PUSCH, PDSCH, etc. of one or more cells, thus realizing the scheduling of multiple cells through one DCI.

[0041] In one embodiment, MC-DCI may include MC-DCI for scheduling uplink transmissions of multiple cells, for example, the format of which may be denoted as DCI format 0_X. MC-DCI may also include MC-DCI for scheduling downlink transmissions of multiple cells, for example, the format of which may be denoted as DCI format 1_X, where X may be, for example, 3.

[0042] Figure 1 This is a schematic diagram illustrating an application scenario according to an embodiment of the present disclosure.

[0043] like Figure 1 As shown, taking MC-DCI scheduling of 4 cells as an example, the 4 cells are Cell#1, Cell#2, Cell#3 and Cell#4.

[0044] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 0_3, and MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 1_3. Specifically, 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.

[0045] Since this embodiment introduces MC-DCI on the basis of traditional DCI, it may lead to an increase in the number of DCI sizes, where size refers to the proportion of bits. DCI size can be translated as the size of the DCI or the size of the DCI.

[0046] A large number of DCI sizes increases the complexity of blind DCI detection at the terminal. To address this, network devices can align the DCI sizes that need to be sent, thereby reducing the number of DCI sizes and ensuring that the number of DCI sizes meets the DCI size budget.

[0047] The alignment process includes at least one of the following: aligning the legacy DCI, aligning the MC-DCI with the legacy DCI, and aligning the MC-DCI used for scheduling uplink transmissions of multiple cells and the MC-DCI used for scheduling downlink transmissions of multiple cells.

[0048] It should be noted that, in the embodiments of this disclosure, after the network device aligns the DCI sizes, the number of DCI sizes can satisfy a preset condition. This preset condition can be a "k+1" condition, meaning that in a cell, the number of DCI sizes scrambled by C-RNTI (Cell Radio Network Temporary Identifier) ​​is less than or equal to k, and the number of DCI sizes scrambled by RNTIs other than C-RNTI is less than or equal to 1. Alternatively, the "k+1" condition can also be expressed as: in a cell, the number of DCI sizes is less than or equal to k+1, wherein the number of DCI sizes scrambled by C-RNTI is less than or equal to k.

[0049] In one embodiment, the value of k can be set as needed, for example, it can be 3 or 4.

[0050] exist Figure 1In the scenario shown, the network device sends DCI 0_3 and DCI 1_3 to schedule Cell#2. If the number of DCI sizes in Cell#2 does not meet the preset conditions, the process of aligning the DCI sizes can include aligning the sizes of DCI0_3 with those of DCI 1_3. For example, if the size of DCI 1_3 is larger than the size of DCI 0_3, zero padding can be applied to DCI0_3. For instance, a bit with a value of 0 can be added after the last bit of DCI 0_3 so that the size of the zero-padded DCI0_3 is the same as the size of DCI 1_3.

[0051] However, the network device sends DCI 0_3 and DCI 0_1 to schedule Cell #4, but does not send DCI 1_3 to schedule Cell #4. That is, in Cell #4, if the number of DCI dimensions does not meet the preset condition, there will be no process of aligning the dimensions of DCI 0_3 with those of DCI 1_3; instead, DCI 0_3 will be aligned with the dimensions of DCI 0_1. Similarly, the network device sends DCI 1_3 and DCI 1_1 to schedule Cell #1, but does not send DCI 0_3 to schedule Cell #1. If the number of DCI dimensions in Cell #1 does not meet the preset condition, then the dimensions of DCI 1_3 and DCI 1_1 can be aligned in Cell #1.

[0052] Because the alignment process involving DCI 0_3 in Cell #2 differs from that in Cell #4, the sizes of DCI 0_3 transmitted on Cell #2 and on Cell #4 may differ. Similarly, because the alignment process involving DCI 1_3 in Cell #2 differs from that in Cell #1, the sizes of DCI 1_3 transmitted on Cell #2 and on Cell #1 may differ.

[0053] This leads to a problem where, when network devices schedule multiple cells using a single MC-DCI, the size of the MC-DCI varies depending on the cells being scheduled. Terminals and network devices encounter issues determining the actual size of the transmitted MC-DCI.

[0054] Figure 2This is a schematic flowchart illustrating a downlink control information size alignment determination method according to an embodiment of the present disclosure. The downlink control information size alignment determination method described in this embodiment can be executed by a terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The terminal can communicate with network devices, including, but not limited to, network devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0055] like Figure 2 As shown, the method for determining the size alignment of downlink control information may include the following steps:

[0056] In step S201, first downlink control information for scheduling multiple cells is received;

[0057] In step S202, the size alignment of the legacy downlink control information in each cell of the first downlink control information scheduling is determined, wherein in at least one first cell corresponding to the first downlink control information, the total 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.

[0058] For the sake of simplicity in the following embodiments, MC-DCI will be used to refer to the first downlink control information, and legacy DCI will be used to refer to the traditional downlink control information.

[0059] It should be noted that the alignment process of DCI size in a certain cell shown in the embodiments of this disclosure is performed under the premise that the number of DCI sizes in that cell does not meet the preset conditions. The preset conditions include the "k+1" condition, where k equals 3 or 4.

[0060] In one embodiment, legacy DCI can also be referred to as existing DCI, and legacy DCI includes at least one of the following: DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. The process of aligning legacy DCI can be referred to the prior art, and will not be described in detail here.

[0061] In one embodiment, the network device can align the sizes of legacy DCIs in each cell scheduled by MC-DCI, and ensure that the sum of the sizes of the MC-DCIs and the aligned legacy DCIs is less than or equal to a first threshold. Then, the MC-DCIs and the aligned legacy DCIs can be sent to the terminal.

[0062] According to embodiments of this disclosure, a terminal can receive MC-DCI for scheduling multiple cells, determine the multiple cells scheduled by the MC-DCI, and determine the size alignment of legacy DCIs within each of the multiple cells. Since only the size alignment of legacy DCIs within each cell is performed, and the MC-DCI does not participate in the alignment, this simplifies the terminal's alignment process. 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 a first quantity, which helps ensure that the total number of DCI sizes in at least one first cell is not too large, thereby avoiding excessive complexity in the terminal's blind DCI detection.

[0063] Moreover, since only the legacy DCI size is aligned within each cell and the MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells. This avoids the problem that the network devices mentioned above need to send different sizes of MC-DCI in different cells when scheduling multiple cells through one MC-DCI.

[0064] It's important to note that the alignment of the DCI dimensions is performed by the network device. After performing the alignment, the network device sends the DCI to the terminal. The terminal determines the alignment of one or more DCI dimensions by deduceing the alignment process performed by the network device, such as padding or truncation, to determine the aligned DCI dimensions for blind detection. The terminal itself does not perform zero-padding or truncation alignment operations on the DCI.

[0065] In one embodiment, the first threshold is equal to the product of the number of at least one first cell and the first quantity.

[0066] In one embodiment, the first quantity may be determined according to the protocol or configured by the network device; for example, the first quantity may be 3 or 4.

[0067] In one embodiment, the first threshold may be indicated to the terminal by the network device or agreed upon by the protocol.

[0068] For example, if the first threshold is agreed upon by the protocol, the first threshold can be equal to the product of the number of at least one first cell and the first quantity. The terminal can determine the number of at least one first cell and then calculate the product of the number of at least one first cell and the first quantity as the first threshold.

[0069] For example, when the first threshold is indicated to the terminal by the network device, the terminal can receive the indication information sent by the network device and determine the first threshold based on the indication information. The indication information includes, but is not limited to, at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control (MAC) control element (MAC CE), MC-DCI, and legacy DCI.

[0070] The following embodiments primarily illustrate this disclosure when the first threshold is equal to the product of the number of at least one first cell and the first quantity.

[0071] In one embodiment, the traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include:

[0072] The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number;

[0073] The number of traditional downlink control information scrambled by RNTI other than C-RNTI is less than or equal to the second number.

[0074] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1. For example, when the first quantity is 3 and the second quantity is 1, the preset condition can be called the "3+1" condition. That is, in a cell, the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3, and the number of legacy DCI sizes scrambled by RNTI other than C-RNTI is less than or equal to 1. Alternatively, it can be expressed as, in a cell, the number of legacy DCI sizes is less than or equal to 4, of which the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3.

[0075] Figure 3 This is a schematic diagram illustrating another application scenario according to an embodiment of the present disclosure.

[0076] like Figure 3 As shown, MC-DCI is still used to schedule four cells, namely Cell#1, Cell#2, Cell#3, and Cell#4, for example.

[0077] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 0_3, and MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 1_3. Specifically, 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.

[0078] 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 DCI1_3. In Cell#4, the DCI received by the terminal includes DCI 0_3, DCI 1_1, and DCI 0_1.

[0079] Among them, DCI 1_1 and DCI 0_1 belong to legacy DCI; DCI 0_3 and DCI 1_3 belong to MC-DCI.

[0080] According to embodiments of this disclosure, since the legacy DCI is size-aligned in each cell, the MC-DCI does not participate in alignment.

[0081] The terminal can then determine that in Cell#1, DCI 1_1 and Legacy DCIs such as DCI 0_1 are size-aligned, while DCI1_3 is not involved in the alignment; and determine that in Cell#2, Legacy DCIs are size-aligned, while DCI 0_3 and DCI 1_3 are not involved in the alignment; and determine that in Cell#3, legacy DCIs are size-aligned, while DCI 1_3 is not involved in the alignment; and determine that in Cell#4, DCI 1_1 and Legacy DCIs such as DCI 0_1 are size-aligned, while DCI 0_3 is not involved in the alignment.

[0082] As can be seen, DCI 0_3 and DCI 1_3 did not participate in alignment in the four cells, so the size of DCI 0_3 and DCI 1_3 did not change. Therefore, when the network device schedules multiple cells through one MC-DCI, the size of the MC-DCI that needs to be sent on different cells can remain the same. For example, when scheduling Cell#2 and Cell#4 through DCI 0_3, the size of DCI 0_3 sent on Cell#2 and Cell#4 can be the same.

[0083] It should be noted that at least one first cell corresponding to MC-DCI may include only one or more cells from the cells actually scheduled by MC-DCI, or it may include cells other than those actually scheduled by MC-DCI.

[0084] For example, the cells that MC-DCI can schedule include six cells: Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6. In a certain instance, MC-DCI actually schedules the following cells: Cell#1, Cell#2, Cell#3, and Cell#4.

[0085] Then, the first cell corresponding to MC-DCI can be one or more cells among Cell#1, Cell#2, Cell#3, and Cell#4, or one or more cells among Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0086] The following examples illustrate at least one first cell corresponding to MC-DCI.

[0087] In one embodiment, at least one first cell is any one of a plurality of cells scheduled by the first downlink control information. Then, in any cell scheduled by MC-DCI, the total size of the MC-DCI 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 quantity.

[0088] Since at least one first cell is any one of the multiple cells scheduled by the first downlink control information, the number of at least one first cell is 1, for example, the first number is 3. Then, in any cell scheduled by MC-DCI, the total size of MC-DCI and the size of aligned legacy DCI is less than or equal to 3.

[0089] In one embodiment, the first downlink control information includes at least one of the following:

[0090] First downlink control information used to schedule downlink transmissions, such as DCI 1_3;

[0091] The first downlink control information used to schedule uplink transmissions, such as DCI 0_3.

[0092] For ease of illustration, DCI 1_3 refers to the first downlink control information used to schedule downlink transmissions, and DCI 0_3 refers to the first downlink control information used to schedule uplink transmissions.

[0093] In one embodiment, at least one cell includes cells actually scheduled by MC-DCI, or at least one cell includes cells that MC-DCI can schedule. The cells that MC-DCI can schedule include the cells actually scheduled by MC-DCI. The cells that MC-DCI can schedule may be determined according to a protocol or configured by the network device. The cells that MC-DCI actually schedules are one or more cells determined from the cells that MC-DCI can schedule, and may vary each time the cells are actually scheduled by MC-DCI.

[0094] For example, at least one cell can be represented by a set of cells. In one embodiment, at least one first cell includes at least one of the following:

[0095] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0096] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0097] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0098] In one embodiment, if at least one first cell is a cell contained in the cell set corresponding to DCI 1_3, then the number of at least one first cell is the number of cells in the cell set corresponding to DCI 1_3.

[0099] For example, the cell set corresponding to DCI 1_3 is the cell set that DCI 1_3 can schedule. For example, if the number of cells that DCI 1_3 can schedule is 4, then at least one first cell is these 4 cells, that is, the number of at least one first cell is 4.

[0100] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 quantity 3, which is 12.

[0101] For example, the cell set corresponding to DCI 1_3 is the cell set consisting of the cells actually scheduled by DCI 1_3. For example, if the number of cells that DCI1_3 can schedule is 3, then at least one first cell is these 3 cells, that is, the number of at least one first cell is 3.

[0102] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0103] In one embodiment, if at least one first cell is a cell contained in the cell set corresponding to DCI 0_3, then the number of at least one first cell is the number of cells in the cell set corresponding to DCI 0_3.

[0104] For example, the cell set corresponding to DCI 0_3 is the cell set that DCI 0_3 can schedule. For example, if the number of cells that DCI 0_3 can schedule is 4, then at least one first cell is these 4 cells, that is, the number of at least one first cell is 4.

[0105] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 0_3, the total 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 4 and the first quantity 3, which is 12.

[0106] For example, the cell set corresponding to DCI 1_3 is the cell set actually scheduled by DCI 0_3. For example, if the number of cells that DCI0_3 can schedule is 2, then at least one first cell is these 2 cells, that is, the number of at least one first cell is 3.

[0107] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0108] In one embodiment, at least one first cell is the set of cells corresponding to DCI 0_3 and the cells contained in the set of cells corresponding to DCI 1_3. Then the number of at least one first cell is the number of cells in the set of cells corresponding to DCI 0_3 and the set of cells corresponding to DCI 1_3, that is, the number of cells in the union of the set of cells corresponding to DCI 0_3 and the set of cells corresponding to DCI 1_3.

[0109] For example, the cell set corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the cell set corresponding to DCI 1_3 is the set of cells that DCI 0_3 actually schedules. The cells that DCI 0_3 can schedule are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that DCI 1_3 can schedule are Cell#1, Cell#2, Cell#4, and Cell#6. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6. Thus, the number of at least one first cell is 6.

[0110] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 0_3 and DCI 1_3, the total number of the dimensions of DCI 0_3 and DCI 1_3 and the dimensions of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell 6 and the first quantity 3, which is 18.

[0111] For example, the cell set corresponding to DCI 0_3 is the cell set actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is the cell set 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. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, and Cell#4. Thus, the number of at least one first cell is 4.

[0112] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0113] Regarding the determination of at least one first cell according to which of the above embodiments, the terminal can determine it based on predefined rules, network device instructions, or its own capabilities reported by the terminal.

[0114] It should be noted that the cell set is not limited to the two cases mentioned above; that is, it includes the cell set consisting of cells that MC-DCI can schedule, and the cell set consisting of cells actually scheduled by MC-DCI. The following examples illustrate the cell set.

[0115] In one embodiment, the cell set includes at least one of the following:

[0116] The set of cells actually scheduled by MC-DCI. For example, the set of cells corresponding to DCI 0_3 is the set of cells actually scheduled by DCI 0_3, and the set of cells corresponding to DCI 1_3 is the set of cells actually scheduled by DCI 1_3.

[0117] The set of cells that MC-DCI can schedule. For example, the set of cells corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the set of cells corresponding to DCI 1_3 is the set of cells that DCI 1_3 can schedule.

[0118] A set of cells with the same configuration parameters; the configuration parameters include, but are not limited to, set identifier, cell identifier, sequence number, and carrier indicator field (CIF);

[0119] The cell set is determined based on the signaling sent by the network device. For example, the cell set corresponding to DCI 0_3 is determined based on the signaling received in the cells actually scheduled by DCI 0_3. For example, the cell set corresponding to DCI 1_3 is determined based on the signaling received in the cells actually scheduled by DCI 1_3.

[0120] A set of cells determined according to predefined rules.

[0121] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information used for scheduling downlink transmissions, the number of aligned conventional downlink control information sizes is less than or equal to a third number; or...

[0122] In any one of the multiple cells scheduled by the first downlink control information used for scheduling uplink transmissions, the number of aligned conventional downlink control information sizes is less than or equal to the third number; or,

[0123] In any one of the multiple cells used for scheduling uplink transmission using the first downlink control information, and in any one of the multiple cells used for scheduling uplink transmission using the first downlink control information, the number of aligned conventional downlink control information sizes is less than or equal to the third number.

[0124] In one embodiment, the third quantity is 2 or 3.

[0125] In one embodiment, the network device can adjust its configuration so that in any one of the multiple cells scheduled by DCI 0_3, the number of aligned legacy DCI sizes is less than or equal to the third number.

[0126] Accordingly, in any one of the multiple cells scheduled by DCI 0_3, the number of aligned legacy DCI sizes is relatively small, which makes it easier 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 quantity.

[0127] For example, if the third quantity is 2, although DCI 0_3 is introduced in the cells scheduled by DCI 0_3, it can still be guaranteed that in at least one first cell corresponding to DCI 0_3, the total number 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 quantity.

[0128] For example, the number of at least one first cell corresponding to DCI 0_3 is 1, the first quantity is 3, and the product of the number of at least one first cell and the first quantity is equal to 3. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity 2, and the number of dimensions of DCI 0_3 is 1. Then the total number of dimensions of DCI 0_3 and the aligned legacy DCI is 3, which is equal to the product of the number of at least one first cell and the first quantity, 3.

[0129] In one embodiment, the network device can adjust its configuration so that in any one of the multiple cells scheduled by DCI 1_3, the number of aligned legacy DCI sizes is less than or equal to the third number.

[0130] Accordingly, in any one of the multiple cells scheduled by DCI 1_3, the number of aligned legacy DCI sizes is relatively small, which makes it easier 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 quantity.

[0131] For example, if the third quantity is 3, although DCI 1_3 is introduced in the cells scheduled by DCI 1_3, it can still be guaranteed that in at least one first cell corresponding to DCI 1_3, the total number 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 quantity.

[0132] For example, the number of at least one first cell corresponding to DCI 1_3 is 1, the first quantity is 4, and the product of the number of at least one first cell and the first quantity is equal to 4. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity 3, and the number of dimensions of DCI 1_3 is 1. Then the total number of dimensions of DCI 1_3 and the aligned legacy DCI is 3, which is equal to the product of the number of at least one first cell and the first quantity, 4.

[0133] 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.

[0134] Accordingly, 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, the number of aligned legacy DCI sizes is relatively small. This ensures that in at least one first cell corresponding to DCI 0_3, and in any one of the multiple cells scheduled by DCI 1_3, the total number of sizes of DCI 0_3 and DCI 1_3 plus the aligned legacy DCI size is less than or equal to the product of the number of at least one first cell and the first quantity.

[0135] For example, if the third quantity is 2, although DCI 0_3 is introduced in the cell scheduled by DCI 0_3 and DCI 1_3 is introduced in the cell scheduled by DCI 1_3, it can still be guaranteed that in at least one first cell corresponding to DCI 1_3, the total number 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 quantity.

[0136] For example, the number of at least one first cell corresponding to DCI 0_3 and DCI 1_3 is 1, the first quantity is 4, and the product of the number of at least one first cell and the first quantity is equal to 4. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity of 2, and the number of dimensions of DCI 0_3 and DCI 1_3 is 2. Then the total number of dimensions of DCI 0_3 and DCI 1_3 and the dimensions of the aligned legacy DCI is 4, which is equal to the product of the number of at least one first cell and the first quantity, 4.

[0137] Figure 4 This is a schematic flowchart illustrating a downlink control information size alignment determination method according to an embodiment of the present disclosure. The downlink control information size alignment determination method described in this embodiment can be executed by a terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The terminal can communicate with network devices, including, but not limited to, network devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0138] like Figure 4 As shown, the method for determining the size alignment of downlink control information may include the following steps:

[0139] In step S401, first downlink control information for scheduling multiple cells is received;

[0140] In step S402, a reference cell is determined from at least one first cell corresponding to the first downlink control information; the reference cell may be one cell or multiple cells.

[0141] In step S403, it is determined that the traditional downlink control information and the first downlink control information are size aligned in the reference cell, and that the traditional downlink control information is aligned in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell.

[0142] For the sake of simplicity in the following embodiments, MC-DCI will be used to refer to the first downlink control information, and legacy DCI will be used to refer to the traditional downlink control information.

[0143] It should be noted that the alignment process of DCI size in a certain cell shown in the embodiments of this disclosure is performed under the premise that the number of DCI sizes in that cell does not meet the preset conditions. The preset conditions include the "k+1" condition, where k equals 3 or 4.

[0144] In one embodiment, legacy DCI can also be referred to as existing DCI, and legacy DCI includes at least one of the following: DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. The process of aligning legacy DCI can be referred to the prior art, and will not be described in detail here.

[0145] In one embodiment, the network device can determine a reference cell in at least one first cell corresponding to the MC-DCI. The DCI dimensions are aligned in the reference cell, with the MC-DCI and legacy DCI participating in the alignment process. The DCI dimensions are then aligned in cells other than the reference cell of the at least one first cell, with legacy DCIs participating in the alignment process, but excluding the MC-DCI. The DCI can then be transmitted to the terminal.

[0146] According to embodiments of this disclosure, a terminal can receive an MC-DCI for scheduling multiple cells, determine that the MC-DCI corresponds to at least one first cell, determine that in a reference cell, legacy DCI and MC-DCI participate in the DCI size alignment process, and determine that in cells other than the reference cell of at least one first cell, only legacy DCI participates in the DCI size alignment process.

[0147] Since in at least one first cell, only the legacy DCI participates in the DCI size alignment process in cells other than the reference cell, while the MC-DCI does not, this simplifies the terminal's alignment process. Furthermore, in at least one first cell, both the legacy DCI and MC-DCI in the reference cell participate in the alignment process, which helps ensure that the total number of DCI sizes in at least one first cell is not too large, thereby avoiding excessive complexity in the terminal's blind DCI detection.

[0148] Moreover, since only the legacy DCI size is aligned in cells other than the reference cell, and the MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells. Thus, at least in cells other than the reference cell, the problem of different sizes of the MC-DCI that need to be sent in different cells when the network device schedules multiple cells through one MC-DCI is avoided.

[0149] It's important to note that the alignment of the DCI dimensions is performed by the network device. After performing the alignment, the network device sends the DCI to the terminal. The terminal determines the alignment of one or more DCI dimensions by deduceing the alignment process performed by the network device, such as padding or truncation, to determine the aligned DCI dimensions for blind detection. The terminal itself does not perform zero-padding or truncation alignment operations on the DCI.

[0150] In one embodiment, the traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include:

[0151] The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number;

[0152] The number of traditional downlink control information scrambled by RNTI other than C-RNTI is less than or equal to the second number.

[0153] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1. For example, when the first quantity is 3 and the second quantity is 1, the preset condition can be called the "3+1" condition. That is, in a cell, the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3, and the number of legacy DCI sizes scrambled by RNTI other than C-RNTI is less than or equal to 1. Alternatively, it can be expressed as, in a cell, the number of legacy DCI sizes is less than or equal to 4, of which the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3.

[0154] Figure 5 This is a schematic diagram illustrating another application scenario according to an embodiment of the present disclosure.

[0155] like Figure 5 As shown, MC-DCI is still used to schedule four cells, namely Cell#1, Cell#2, Cell#3, and Cell#4, for example.

[0156] The MC-DCI includes MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 0_3, and MC-DCI for scheduling uplink transmissions of multiple cells, such as DCI 1_3. Specifically, 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.

[0157] 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 DCI1_3. In Cell#4, the DCI received by the terminal includes DCI 0_3, DCI 1_1, and DCI 0_1.

[0158] Among them, DCI 1_1 and DCI 0_1 belong to legacy DCI; DCI 0_3 and DCI 1_3 belong to MC-DCI.

[0159] According to embodiments of this disclosure, for example, at least one cell is Cell#1, Cell#2, Cell#3, and Cell#4, wherein the reference cell is Cell#2, and the cells other than the reference cell are Cell#1, Cell#3, and Cell#4.

[0160] In Cell#2, when network devices align the dimensions of DCI, both legacy DCI and MC-DCI can participate in the alignment process. Therefore, DCI 0_3 and DCI 1_3 can be aligned.

[0161] In Cells #1, #3, and #4, when aligning the dimensions of DCI devices, only the legacy DCI participates in the alignment process; the MC-DCI does not. Therefore, it is unnecessary to align the dimensions of MC-DCI with those of legacy DCI devices. For example, in Cell #1, the dimensions of legacy DCI devices such as DCI 1_1 and DCI 0_1 can be aligned, but the dimension of DCI 1_3 does not need to be aligned with either DCI 1_1 or DCI 0_1. For example, in Cell #2, both legacy DCI and MC-DCI participate in the alignment process, which may include aligning the dimensions of DCI 1_3 or DCI 0_3. For example, in Cell #3, the dimensions of legacy DCI devices can be aligned, but the dimension of DCI 1_3 does not need to be aligned with those of legacy DCI devices. For example, in Cell #4, the dimensions of DCI 1_1 and DCI 0_1 can be aligned, but the dimension of DCI 0_3 does not need to be aligned with either DCI 1_1 or DCI 0_1.

[0162] Correspondingly, the terminal can determine that DCI 1_1 and DCI 0_1 are aligned in Cell#1, while DCI 1_3 is not involved in the alignment; and determine that DCI 0_3 and DCI 1_3 are aligned in Cell#2; and determine that the dimensions of legacy DCI are involved in the alignment in Cell#3, while DCI 1_3 is not involved in the alignment; and determine that DCI 1_1 and DCI0_1 are aligned in Cell#4, while DCI 0_3 is not involved in the alignment.

[0163] As can be seen, among the four cells, only DCI 0_3 and DCI 1_3 in the reference cell participate in alignment. In cells other than the reference cell, DCI 0_3 and DCI 1_3 are not aligned. Therefore, the sizes of DCI0_3 and DCI1_3 do not change in cells other than the reference cell. Thus, when network devices schedule multiple cells through one MC-DCI, the size of the MC-DCI to be sent in cells other than the reference cell can remain the same. For example, when scheduling Cell#1 and Cell#3 through DCI 1_3, the size of DCI 1_3 sent in Cell#1 and Cell#3 can be the same.

[0164] It should be noted that at least one first cell corresponding to MC-DCI may include only one or more cells from the cells actually scheduled by MC-DCI, or it may include cells other than those actually scheduled by MC-DCI.

[0165] For example, the cells that MC-DCI can schedule include six cells: Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6. In a certain instance, MC-DCI actually schedules the following cells: Cell#1, Cell#2, Cell#3, and Cell#4.

[0166] Then, the first cell corresponding to MC-DCI can be one or more cells among Cell#1, Cell#2, Cell#3, and Cell#4, or one or more cells among Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0167] The following examples illustrate at least one first cell corresponding to MC-DCI.

[0168] In one embodiment, the first downlink control information includes at least one of the following:

[0169] First downlink control information used to schedule downlink transmissions, such as DCI 1_3;

[0170] The first downlink control information used to schedule uplink transmissions, such as DCI 0_3.

[0171] For ease of illustration, DCI 1_3 refers to the first downlink control information used to schedule downlink transmissions, and DCI 0_3 refers to the first downlink control information used to schedule uplink transmissions.

[0172] In one embodiment, at least one cell includes cells actually scheduled by MC-DCI, or at least one cell includes cells that MC-DCI can schedule. The cells that MC-DCI can schedule include the cells actually scheduled by MC-DCI. The cells that MC-DCI can schedule may be determined according to a protocol or configured by the network device. The cells that MC-DCI actually schedules are one or more cells determined from the cells that MC-DCI can schedule, and may vary each time the cells are actually scheduled by MC-DCI.

[0173] For example, at least one cell can be represented by a set of cells. In one embodiment, at least one first cell includes at least one of the following:

[0174] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0175] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0176] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0177] In one embodiment, at least one first cell is a cell contained in the 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 DCI 1_3 can schedule, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that DCI 1_3 actually schedules.

[0178] In one embodiment, at least one first cell is a cell contained in the cell set corresponding to DCI 0_3. For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that DCI 0_3 can schedule, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that DCI 0_3 actually schedules.

[0179] In one embodiment, at least one first cell is the cell set corresponding to DCI 0_3, and the cells contained in the cell set corresponding to DCI 1_3.

[0180] For example, the cell set corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the cell set corresponding to DCI 1_3 is the set of cells that DCI 0_3 actually schedules. The cells that DCI 0_3 can schedule are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that DCI 1_3 can schedule are Cell#1, Cell#2, Cell#4, and Cell#6. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0181] For example, the cell set corresponding to DCI 0_3 is the cell set actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is the cell set 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. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, and Cell#4.

[0182] Regarding the determination of at least one first cell according to which of the above embodiments, the terminal can determine it based on predefined rules, network device instructions, or its own capabilities reported by the terminal.

[0183] It should be noted that the cell set is not limited to the two cases mentioned above; that is, it includes the cell set consisting of cells that MC-DCI can schedule, and the cell set consisting of cells actually scheduled by MC-DCI. The following examples illustrate the cell set.

[0184] In one embodiment, the cell set includes at least one of the following:

[0185] The set of cells actually scheduled by MC-DCI. For example, the set of cells corresponding to DCI 0_3 is the set of cells actually scheduled by DCI 0_3, and the set of cells corresponding to DCI 1_3 is the set of cells actually scheduled by DCI 1_3.

[0186] The set of cells that MC-DCI can schedule. For example, the set of cells corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the set of cells corresponding to DCI 1_3 is the set of cells that DCI 1_3 can schedule.

[0187] A set of cells with the same configuration parameters; the configuration parameters include, but are not limited to, set identifier, cell identifier, sequence number, and carrier indication field (CIF).

[0188] The cell set is determined based on the signaling sent by the network device. For example, the cell set corresponding to DCI 0_3 is determined based on the signaling received in the cells actually scheduled by DCI 0_3. For example, the cell set corresponding to DCI 1_3 is determined based on the signaling received in the cells actually scheduled by DCI 1_3.

[0189] A set of cells determined according to predefined rules.

[0190] In one embodiment, the reference cell includes at least one of the following:

[0191] At least one cell with the smallest cell index in the first cell;

[0192] At least one cell with the largest cell index in the first cell;

[0193] At least one of the first cells has the fewest cells configured with traditional downlink control information;

[0194] At least one cell in the first cell is used to calculate blind detection resources (e.g., BD, CCE, where BD represents blind detection and CCE represents control channel element).

[0195] At least one cell in the first cell is configured with the search space corresponding to the first downlink control information.

[0196] Figure 6 This is a schematic flowchart illustrating a downlink control information size alignment method according to an embodiment of the present disclosure. The downlink control information size alignment method described in this embodiment can be executed by a network device that can communicate with a terminal. The network device includes, but is not limited to, base stations in communication systems such as 4G, 5G, and 6G base stations. The terminal includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices.

[0197] like Figure 6 As shown, the downlink control information size alignment method may include the following steps:

[0198] In step S601, the size of the traditional downlink control information in each cell used for scheduling the first downlink control information of multiple cells is aligned, wherein in at least one first cell corresponding to the first downlink control information, the total size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold.

[0199] In step S602, the first downlink control information is sent to the terminal.

[0200] For the sake of simplicity in the following embodiments, MC-DCI will be used to refer to the first downlink control information, and legacy DCI will be used to refer to the traditional downlink control information.

[0201] In one embodiment, legacy DCI can also be referred to as existing DCI, and legacy DCI includes at least one of the following: DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. The process of aligning legacy DCI can be referred to the prior art, and will not be described in detail here.

[0202] According to embodiments of this disclosure, the network device can align the sizes of legacy DCIs in each cell scheduled by MC-DCI, and ensure that the sum of the sizes of the MC-DCIs and the aligned legacy DCIs is less than or equal to a first threshold. Then, the MC-DCIs and the aligned legacy DCIs can be sent to the terminal.

[0203] Furthermore, after receiving the MC-DCI used for scheduling multiple cells, the terminal can determine the multiple cells scheduled by the MC-DCI, and determine the size alignment of the legacy DCI within each of the multiple cells. Since only the size alignment of the legacy DCI within each cell is performed, and the MC-DCI does not participate in the alignment, it simplifies the terminal's alignment process. Moreover, the sum of the number of MC-DCI sizes in multiple cells and the number of aligned legacy DCI sizes 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 quantity, which helps ensure that the total number of DCI sizes in at least one first cell is not too large, thereby avoiding excessive complexity in the terminal's blind DCI detection.

[0204] Moreover, since only the legacy DCI size is aligned within each cell and the MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells. This avoids the problem that the network devices mentioned above need to send different sizes of MC-DCI in different cells when scheduling multiple cells through one MC-DCI.

[0205] It's important to note that the alignment of the DCI dimensions is performed by the network device. After performing the alignment, the network device sends the DCI to the terminal. The terminal determines the alignment of one or more DCI dimensions by deduceing the alignment process performed by the network device, such as padding or truncation, to determine the aligned DCI dimensions for blind detection. The terminal itself does not perform zero-padding or truncation alignment operations on the DCI.

[0206] In one embodiment, the first threshold is equal to the product of the number of at least one first cell and the first quantity.

[0207] In one embodiment, the first quantity can be set as needed, for example, 3 or 4.

[0208] In one embodiment, the first threshold may be indicated to the terminal by the network device or agreed upon by the protocol.

[0209] For example, if the first threshold is agreed upon by the protocol, the first threshold can be equal to the product of the number of at least one first cell and the first quantity. The network device can determine the number of at least one first cell and then calculate the product of the number of at least one first cell and the first quantity as the first threshold.

[0210] For example, when the network device indicates a first threshold to the terminal, the terminal can receive the indication information sent by the network device and determine the first threshold based on the indication information. The indication information includes, but is not limited to, at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control Layer Control Element (MAC CE), MC-DCI, and legacy DCI.

[0211] The following embodiments primarily illustrate this disclosure when the first threshold is equal to the product of the number of at least one first cell and the first quantity.

[0212] In one embodiment, the traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include:

[0213] The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number;

[0214] The number of traditional downlink control information scrambled by RNTI other than C-RNTI is less than or equal to the second number.

[0215] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1. For example, when the first quantity is 3 and the second quantity is 1, the preset condition can be called the "3+1" condition. That is, in a cell, the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3, and the number of legacy DCI sizes scrambled by RNTI other than C-RNTI is less than or equal to 1. Alternatively, it can be expressed as, in a cell, the number of legacy DCI sizes is less than or equal to 4, of which the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3.

[0216] The following examples illustrate at least one first cell corresponding to MC-DCI.

[0217] In one embodiment, at least one first cell is any one of a plurality of cells scheduled by the first downlink control information. Then, in any cell scheduled by MC-DCI, the total size of the MC-DCI 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 quantity.

[0218] Since at least one first cell is any one of the multiple cells scheduled by the first downlink control information, the number of at least one first cell is 1, for example, the first number is 3. Then, in any cell scheduled by MC-DCI, the total size of MC-DCI and the size of aligned legacy DCI is less than or equal to 3.

[0219] In one embodiment, the first downlink control information includes at least one of the following:

[0220] First downlink control information used to schedule downlink transmissions, such as DCI 1_3;

[0221] The first downlink control information used to schedule uplink transmissions, such as DCI 0_3.

[0222] For ease of illustration, DCI 1_3 refers to the first downlink control information used to schedule downlink transmissions, and DCI 0_3 refers to the first downlink control information used to schedule uplink transmissions.

[0223] In one embodiment, at least one of the first cells includes at least one of the following:

[0224] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0225] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0226] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0227] In one embodiment, if at least one first cell is a cell contained in the cell set corresponding to DCI 1_3, then the number of at least one first cell is the number of cells in the cell set corresponding to DCI 1_3.

[0228] For example, the cell set corresponding to DCI 1_3 is the cell set that DCI 1_3 can schedule. For example, if the number of cells that DCI 1_3 can schedule is 4, then at least one first cell is these 4 cells, that is, the number of at least one first cell is 4.

[0229] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 quantity 3, which is 12.

[0230] For example, the cell set corresponding to DCI 1_3 is the cell set consisting of the cells actually scheduled by DCI 1_3. For example, if the number of cells that DCI1_3 can schedule is 3, then at least one first cell is these 3 cells, that is, the number of at least one first cell is 3.

[0231] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0232] In one embodiment, if at least one first cell is a cell contained in the cell set corresponding to DCI 0_3, then the number of at least one first cell is the number of cells in the cell set corresponding to DCI 0_3.

[0233] For example, the cell set corresponding to DCI 0_3 is the cell set that DCI 0_3 can schedule. For example, if the number of cells that DCI 0_3 can schedule is 4, then at least one first cell is these 4 cells, that is, the number of at least one first cell is 4.

[0234] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 0_3, the total 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 4 and the first quantity 3, which is 12.

[0235] For example, the cell set corresponding to DCI 1_3 is the cell set actually scheduled by DCI 0_3. For example, if the number of cells that DCI0_3 can schedule is 2, then at least one first cell is these 2 cells, that is, the number of at least one first cell is 3.

[0236] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0237] In one embodiment, at least one first cell is the set of cells corresponding to DCI 0_3 and the cells contained in the set of cells corresponding to DCI 1_3. Then the number of at least one first cell is the number of cells in the set of cells corresponding to DCI 0_3 and the set of cells corresponding to DCI 1_3, that is, the number of cells in the union of the set of cells corresponding to DCI 0_3 and the set of cells corresponding to DCI 1_3.

[0238] For example, the cell set corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the cell set corresponding to DCI 1_3 is the set of cells that DCI 0_3 actually schedules. The cells that DCI 0_3 can schedule are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that DCI 1_3 can schedule are Cell#1, Cell#2, Cell#4, and Cell#6. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6. Thus, the number of at least one first cell is 6.

[0239] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 0_3 and DCI 1_3, the total number of the dimensions of DCI 0_3 and DCI 1_3 and the dimensions of the aligned legacy DCI is less than or equal to the product of the number of at least one first cell 6 and the first quantity 3, which is 18.

[0240] For example, the cell set corresponding to DCI 0_3 is the cell set actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is the cell set 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. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, and Cell#4. Thus, the number of at least one first cell is 4.

[0241] Taking a first quantity of 3 as an example, in at least one first cell corresponding to DCI 1_3, the total 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 3 and the first quantity 3, which is 9.

[0242] Regarding the determination of at least one first cell according to which of the above embodiments, the terminal can determine it based on predefined rules, network device instructions, or its own capabilities reported by the terminal.

[0243] It should be noted that the cell set is not limited to the two cases mentioned above; that is, it includes the cell set consisting of cells that MC-DCI can schedule, and the cell set consisting of cells actually scheduled by MC-DCI. The following examples illustrate the cell set.

[0244] In one embodiment, the cell set includes at least one of the following:

[0245] The set of cells actually scheduled by MC-DCI. For example, the set of cells corresponding to DCI 0_3 is the set of cells actually scheduled by DCI 0_3, and the set of cells corresponding to DCI 1_3 is the set of cells actually scheduled by DCI 1_3.

[0246] The set of cells that MC-DCI can schedule. For example, the set of cells corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the set of cells corresponding to DCI 1_3 is the set of cells that DCI 1_3 can schedule.

[0247] A set of cells with the same configuration parameters; the configuration parameters include, but are not limited to, set identifier, cell identifier, sequence number, and carrier indication field (CIF);

[0248] The cell set is determined based on the signaling sent by the network device. For example, the cell set corresponding to DCI 0_3 is determined based on the signaling received in the cells actually scheduled by DCI 0_3. For example, the cell set corresponding to DCI 1_3 is determined based on the signaling received in the cells actually scheduled by DCI 1_3.

[0249] A set of cells determined according to predefined rules.

[0250] In one embodiment, in any one of the plurality of cells scheduled by the first downlink control information used for scheduling downlink transmissions, the number of aligned conventional downlink control information sizes is less than or equal to a third number; or...

[0251] In any one of the multiple cells scheduled by the first downlink control information used for scheduling uplink transmissions, the number of aligned conventional downlink control information sizes is less than or equal to the third number; or,

[0252] In any one of the multiple cells used for scheduling uplink transmission using the first downlink control information, and in any one of the multiple cells used for scheduling uplink transmission using the first downlink control information, the number of aligned conventional downlink control information sizes is less than or equal to the third number.

[0253] In one embodiment, the third quantity is 2 or 3.

[0254] In one embodiment, the network device can adjust its configuration so that in any one of the multiple cells scheduled by DCI 0_3, the number of aligned legacy DCI sizes is less than or equal to the third number.

[0255] Accordingly, in any one of the multiple cells scheduled by DCI 0_3, the number of aligned legacy DCI sizes is relatively small, which makes it easier 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 quantity.

[0256] For example, if the third quantity is 2, although DCI 0_3 is introduced in the cells scheduled by DCI 0_3, it can still be guaranteed that in at least one first cell corresponding to DCI 0_3, the total number 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 quantity.

[0257] For example, the number of at least one first cell corresponding to DCI 0_3 is 1, the first quantity is 3, and the product of the number of at least one first cell and the first quantity is equal to 3. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity 2, and the number of dimensions of DCI 0_3 is 1. Then the total number of dimensions of DCI 0_3 and the aligned legacy DCI is 3, which is equal to the product of the number of at least one first cell and the first quantity, 3.

[0258] In one embodiment, the network device can adjust its configuration so that in any one of the multiple cells scheduled by DCI 1_3, the number of aligned legacy DCI sizes is less than or equal to the third number.

[0259] Accordingly, in any one of the multiple cells scheduled by DCI 1_3, the number of aligned legacy DCI sizes is relatively small, which makes it easier 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 quantity.

[0260] For example, if the third quantity is 3, although DCI 1_3 is introduced in the cells scheduled by DCI 1_3, it can still be guaranteed that in at least one first cell corresponding to DCI 1_3, the total number 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 quantity.

[0261] For example, the number of at least one first cell corresponding to DCI 1_3 is 1, the first quantity is 4, and the product of the number of at least one first cell and the first quantity is equal to 4. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity 3, and the number of dimensions of DCI 1_3 is 1. Then the total number of dimensions of DCI 1_3 and the aligned legacy DCI is 3, which is equal to the product of the number of at least one first cell and the first quantity, 4.

[0262] 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.

[0263] Accordingly, 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, the number of aligned legacy DCI sizes is relatively small. This ensures that in at least one first cell corresponding to DCI 0_3, and in any one of the multiple cells scheduled by DCI 1_3, the total number of sizes of DCI 0_3 and DCI 1_3 plus the aligned legacy DCI size is less than or equal to the product of the number of at least one first cell and the first quantity.

[0264] For example, if the third quantity is 2, although DCI 0_3 is introduced in the cell scheduled by DCI 0_3 and DCI 1_3 is introduced in the cell scheduled by DCI 1_3, it can still be guaranteed that in at least one first cell corresponding to DCI 1_3, the total number 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 quantity.

[0265] For example, the number of at least one first cell corresponding to DCI 0_3 and DCI 1_3 is 1, the first quantity is 4, and the product of the number of at least one first cell and the first quantity is equal to 4. For example, the number of dimensions of the aligned legacy DCI is equal to the third quantity of 2, and the number of dimensions of DCI 0_3 and DCI 1_3 is 2. Then the total number of dimensions of DCI 0_3 and DCI 1_3 and the dimensions of the aligned legacy DCI is 4, which is equal to the product of the number of at least one first cell and the first quantity, 4.

[0266] Figure 7 This is a schematic flowchart illustrating a downlink control information size alignment method according to an embodiment of the present disclosure. The downlink control information size alignment method described in this embodiment can be executed by a network device that can communicate with a terminal. The network device includes, but is not limited to, base stations in communication systems such as 4G, 5G, and 6G base stations. The terminal includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices.

[0267] like Figure 7 As shown, the downlink control information size alignment method may include the following steps:

[0268] In step S701, a reference cell is determined from at least one first cell corresponding to the first downlink control information used for scheduling multiple cells;

[0269] In step S702, the dimensions of the traditional downlink control information and the first downlink control information are aligned in the reference cell, and the dimensions of the traditional downlink control information are aligned in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell;

[0270] In step S703, the first downlink control information is sent to the terminal.

[0271] For the sake of simplicity in the following embodiments, MC-DCI will be used to refer to the first downlink control information, and legacy DCI will be used to refer to the traditional downlink control information.

[0272] In one embodiment, legacy DCI can also be referred to as existing DCI, and legacy DCI includes at least one of the following: DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, and DCI 2_1. The process of aligning legacy DCI can be referred to the prior art, and will not be described in detail here.

[0273] According to embodiments of this disclosure, the network device can determine a reference cell in at least one first cell corresponding to the MC-DCI. The DCI dimensions are aligned in the reference cell, and the DCIs involved in the alignment process include the MC-DCI and the legacy DCI. The DCI dimensions are then aligned in cells other than the reference cell of the at least one first cell, and the DCIs involved in the alignment process include the legacy DCI but not the MC-DCI. The DCI can then be transmitted to the terminal.

[0274] Correspondingly, after receiving the MC-DCI used to schedule multiple cells, the terminal can determine that the MC-DCI corresponds to at least one first cell, and determine that in the reference cell, the legacy DCI and the MC-DCI participated in the DCI size alignment process, and determine that in cells other than the reference cell of at least one first cell, only the legacy DCI participated in the DCI size alignment process.

[0275] Since in at least one first cell, only the legacy DCI participates in the DCI size alignment process in cells other than the reference cell, while the MC-DCI does not, this simplifies the terminal's alignment process. Furthermore, in at least one first cell, both the legacy DCI and MC-DCI in the reference cell participate in the alignment process, which helps ensure that the total number of DCI sizes in at least one first cell is not too large, thereby avoiding excessive complexity in the terminal's blind DCI detection.

[0276] Moreover, since only the legacy DCI size is aligned in cells other than the reference cell, and the MC-DCI is not involved in the alignment, the size of the MC-DCI does not change for different cells. Thus, at least in cells other than the reference cell, the problem of different sizes of the MC-DCI that need to be sent in different cells when the network device schedules multiple cells through one MC-DCI is avoided.

[0277] It's important to note that the alignment of the DCI dimensions is performed by the network device. After performing the alignment, the network device sends the DCI to the terminal. The terminal determines the alignment of one or more DCI dimensions by deduceing the alignment process performed by the network device, such as padding or truncation, to determine the aligned DCI dimensions for blind detection. The terminal itself does not perform zero-padding or truncation alignment operations on the DCI.

[0278] In one embodiment, the traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include:

[0279] The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number;

[0280] The number of traditional downlink control information scrambled by RNTI other than C-RNTI is less than or equal to the second number.

[0281] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1. For example, when the first quantity is 3 and the second quantity is 1, the preset condition can be called the "3+1" condition. That is, in a cell, the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3, and the number of legacy DCI sizes scrambled by RNTI other than C-RNTI is less than or equal to 1. Alternatively, it can be expressed as, in a cell, the number of legacy DCI sizes is less than or equal to 4, of which the number of legacy DCI sizes scrambled by C-RNTI is less than or equal to 3.

[0282] The following examples illustrate at least one first cell corresponding to MC-DCI.

[0283] In one embodiment, the first downlink control information includes at least one of the following:

[0284] First downlink control information used to schedule downlink transmissions, such as DCI 1_3;

[0285] The first downlink control information used to schedule uplink transmissions, such as DCI 0_3.

[0286] For ease of illustration, DCI 1_3 refers to the first downlink control information used to schedule downlink transmissions, and DCI 0_3 refers to the first downlink control information used to schedule uplink transmissions.

[0287] In one embodiment, at least one of the first cells includes at least one of the following:

[0288] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0289] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0290] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0291] In one embodiment, at least one first cell is a cell contained in the 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 DCI 1_3 can schedule, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that DCI 1_3 actually schedules.

[0292] In one embodiment, at least one first cell is a cell contained in the cell set corresponding to DCI 0_3. For example, the cell set corresponding to DCI 0_3 is a cell set consisting of cells that DCI 0_3 can schedule, or the cell set corresponding to DCI 1_3 is a cell set consisting of cells that DCI 0_3 actually schedules.

[0293] In one embodiment, at least one first cell is the cell set corresponding to DCI 0_3, and the cells contained in the cell set corresponding to DCI 1_3.

[0294] For example, the cell set corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the cell set corresponding to DCI 1_3 is the set of cells that DCI 0_3 actually schedules. The cells that DCI 0_3 can schedule are Cell#1, Cell#2, Cell#3, and Cell#5, and the cells that DCI 1_3 can schedule are Cell#1, Cell#2, Cell#4, and Cell#6. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, Cell#4, Cell#5, and Cell#6.

[0295] For example, the cell set corresponding to DCI 0_3 is the cell set actually scheduled by DCI 0_3, and the cell set corresponding to DCI 1_3 is the cell set 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. Therefore, 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 contain the cells Cell#1, Cell#2, Cell#3, and Cell#4.

[0296] Regarding the determination of at least one first cell according to which of the above embodiments, the terminal can determine it based on predefined rules, network device instructions, or its own capabilities reported by the terminal.

[0297] It should be noted that the cell set is not limited to the two cases mentioned above; that is, it includes the cell set consisting of cells that MC-DCI can schedule, and the cell set consisting of cells actually scheduled by MC-DCI. The following examples illustrate the cell set.

[0298] In one embodiment, the cell set includes at least one of the following:

[0299] The set of cells actually scheduled by MC-DCI. For example, the set of cells corresponding to DCI 0_3 is the set of cells actually scheduled by DCI 0_3, and the set of cells corresponding to DCI 1_3 is the set of cells actually scheduled by DCI 1_3.

[0300] The set of cells that MC-DCI can schedule. For example, the set of cells corresponding to DCI 0_3 is the set of cells that DCI 0_3 can schedule, and the set of cells corresponding to DCI 1_3 is the set of cells that DCI 1_3 can schedule.

[0301] A set of cells with the same configuration parameters; the configuration parameters include, but are not limited to, set identifier, cell identifier, sequence number, and carrier indication field (CIF).

[0302] The cell set is determined based on the signaling sent by the network device. For example, the cell set corresponding to DCI 0_3 is determined based on the signaling received in the cells actually scheduled by DCI 0_3. For example, the cell set corresponding to DCI 1_3 is determined based on the signaling received in the cells actually scheduled by DCI 1_3.

[0303] A set of cells determined according to predefined rules.

[0304] In one embodiment, the reference cell includes at least one of the following:

[0305] At least one cell with the smallest cell index in the first cell;

[0306] At least one cell with the largest cell index in the first cell;

[0307] At least one of the first cells has the fewest cells configured with traditional downlink control information;

[0308] At least one cell in the first cell used to calculate blind detection resources (e.g., BD, CCE);

[0309] At least one cell in the first cell is configured with the search space corresponding to the first downlink control information.

[0310] Figure 8 This is a schematic diagram illustrating the interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0311] like Figure 8 As shown, the network device can align the sizes of legacy DCIs in each cell scheduled by MC-DCI, and ensure that the sum of the sizes of the MC-DCIs and the aligned legacy DCIs is less than or equal to a first threshold. Then, the MC-DCIs and the aligned legacy DCIs can be sent to the terminal.

[0312] The terminal can receive MC-DCI for scheduling multiple cells, determine the multiple cells scheduled by the MC-DCI, and determine the size alignment of the legacy DCI within each of the multiple cells.

[0313] It should be noted that other contents involved in this embodiment are described in the previous embodiments, and will not be repeated here.

[0314] Figure 9 This is a schematic diagram illustrating another interaction between a terminal and a network device according to an embodiment of the present disclosure.

[0315] like Figure 9 As shown, the network device can determine a reference cell in at least one first cell corresponding to the MC-DCI. The DCI dimensions are aligned in the reference cell, and the DCIs involved in the alignment process include the MC-DCI and the legacy DCI. Meanwhile, the dimensions of the legacy downlink control information are aligned in a second cell within at least one of the first cells. The second cell is a cell other than the reference cell in the first cells, and the DCIs involved in the alignment process include the legacy DCI but not the MC-DCI. The DCI can then be sent to the terminal.

[0316] The terminal can receive MC-DCI for scheduling multiple cells, determine that the MC-DCI corresponds to at least one first cell, determine that the legacy DCI and MC-DCI participate in the DCI size alignment process in the reference cell, and determine that only the legacy DCI participates in the DCI size alignment process in the second cell of at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell.

[0317] It should be noted that other contents involved in this embodiment are described in the previous embodiments, and will not be repeated here.

[0318] Corresponding to the aforementioned embodiments of the downlink control information size alignment method and the downlink control information size alignment determination method, this disclosure also provides embodiments of the downlink control information size alignment device and the downlink control information size alignment determination device.

[0319] Figure 10 This is a schematic block diagram illustrating a downlink control information size alignment determination device according to embodiments of the present disclosure. Figure 10 As shown, the downlink control information size alignment determination device includes:

[0320] The receiving module 1001 is configured to receive first downlink control information for scheduling multiple cells;

[0321] The processing module 1002 is configured to determine the size alignment of traditional downlink control information in each cell of the first downlink control information scheduling, wherein in at least one first cell corresponding to the first downlink control information, the total number of the size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold.

[0322] In one embodiment, at least one first cell is any one of the plurality of cells scheduled by the first downlink control information.

[0323] In one embodiment, the first downlink control information includes at least one of the following: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0324] In one embodiment, at least one of the first cells includes at least one of the following:

[0325] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0326] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0327] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0328] In one embodiment, in any one of the plurality of cells for scheduling the first downlink control information used for scheduling downlink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number; or, in any one of the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number; or, in both the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission and the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number.

[0329] In one embodiment, the third quantity is 2 or 3.

[0330] In one embodiment, the traditional downlink control information in each cell of the first downlink control information scheduling meets preset conditions, wherein the preset conditions include: the number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; and the number of traditional downlink control information scrambled with RNTIs other than C-RNTI is less than or equal to a second number.

[0331] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1.

[0332] Figure 11 This is a schematic block diagram illustrating a downlink control information size alignment determination device according to embodiments of the present disclosure. Figure 11 As shown, the downlink control information size alignment determination device includes:

[0333] The receiving module 1101 is configured to receive first downlink control information for scheduling multiple cells;

[0334] The processing module 1102 is configured to determine a reference cell in at least one first cell corresponding to the first downlink control information; determine the size alignment of the traditional downlink control information and the first downlink control information in the reference cell; and determine the alignment of the traditional downlink control information in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell.

[0335] In one embodiment, the first downlink control information includes at least one of the following: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0336] In one embodiment, at least one of the first cells includes at least one of the following:

[0337] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0338] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0339] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0340] In one embodiment, the reference cell includes at least one of the following:

[0341] At least one cell with the smallest cell index in the first cell;

[0342] At least one cell with the largest cell index in the first cell;

[0343] At least one of the first cells has the fewest cells configured with traditional downlink control information;

[0344] At least one cell in the first cell used to calculate blind detection resources;

[0345] At least one cell in the first cell is configured with the search space corresponding to the first downlink control information.

[0346] In one embodiment, the traditional downlink control information in each cell of the first downlink control information scheduling meets preset conditions, wherein the preset conditions include: the number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; and the number of traditional downlink control information scrambled with RNTIs other than C-RNTI is less than or equal to a second number.

[0347] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1.

[0348] Figure 12 This is a schematic block diagram illustrating a downlink control information size alignment device according to embodiments of the present disclosure. Figure 12 As shown, the downlink control information size alignment device includes:

[0349] The processing module 1201 is configured to align the size of the traditional downlink control information in each cell of the first downlink control information used for scheduling multiple cells, wherein in at least one first cell corresponding to the first downlink control information, the total size of the first downlink control information and the size of the aligned traditional downlink control information is less than or equal to a first threshold.

[0350] The sending module 1202 is configured to send the first downlink control information to the terminal.

[0351] In one embodiment, at least one first cell is any one of the plurality of cells scheduled by the first downlink control information.

[0352] In one embodiment, the first downlink control information includes at least one of the following: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0353] In one embodiment, at least one of the first cells includes at least one of the following:

[0354] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0355] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0356] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0357] In one embodiment, in any one of the plurality of cells for scheduling the first downlink control information used for scheduling downlink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number; or, in any one of the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number; or, in both the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission and the plurality of cells for scheduling the first downlink control information used for scheduling uplink transmission, the number of aligned traditional downlink control information sizes is less than or equal to a third number.

[0358] In one embodiment, the third quantity is 2 or 3.

[0359] In one embodiment, the traditional downlink control information in each cell of the first downlink control information scheduling meets preset conditions, wherein the preset conditions include: the number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; and the number of traditional downlink control information scrambled with RNTIs other than C-RNTI is less than or equal to a second number.

[0360] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1.

[0361] Figure 13 This is a schematic block diagram illustrating a downlink control information size alignment device according to embodiments of the present disclosure. Figure 13 As shown, the downlink control information size alignment device includes:

[0362] The processing module 1301 is configured to determine a reference cell in at least one first cell corresponding to the first downlink control information used for scheduling multiple cells; to align the dimensions of the traditional downlink control information and the first downlink control information in the reference cell; and to align the dimensions of the traditional downlink control information in a second cell in at least one first cell, wherein the second cell is a cell other than the reference cell in the first cell.

[0363] The sending module 1302 is configured to send first downlink control information to the terminal.

[0364] In one embodiment, the first downlink control information includes at least one of the following: first downlink control information for scheduling downlink transmission; and first downlink control information for scheduling uplink transmission.

[0365] In one embodiment, at least one of the first cells includes at least one of the following:

[0366] The set of cells corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells;

[0367] The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells;

[0368] The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells contained in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

[0369] In one embodiment, the reference cell includes at least one of the following:

[0370] At least one cell with the smallest cell index in the first cell;

[0371] At least one cell with the largest cell index in the first cell;

[0372] At least one of the first cells has the fewest cells configured with traditional downlink control information;

[0373] At least one cell in the first cell used to calculate blind detection resources;

[0374] At least one cell in the first cell is configured with the search space corresponding to the first downlink control information.

[0375] In one embodiment, the traditional downlink control information in each cell of the first downlink control information scheduling meets preset conditions, wherein the preset conditions include: the number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to a first number; and the number of traditional downlink control information scrambled with RNTIs other than C-RNTI is less than or equal to a second number.

[0376] In one embodiment, the first quantity is 3 or 4, and the second quantity is 1.

[0377] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0378] The embodiments of this disclosure also propose a downlink control information size alignment system, including a terminal and a network device, wherein the terminal is configured to implement the downlink control information size alignment determination method described in any of the above embodiments, and the network device is configured to implement the downlink control information size alignment method described in any of the above embodiments.

[0379] Embodiments of this disclosure also provide a communication device, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the downlink control information size alignment determination method described in any of the above embodiments is implemented.

[0380] Embodiments of this disclosure also provide a communication device, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, it implements the downlink control information size alignment method described in any of the above embodiments.

[0381] Embodiments of this disclosure also propose a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the downlink control information size alignment determination method described in any of the above embodiments.

[0382] Embodiments of this disclosure also propose a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the downlink control information size alignment method described in any of the above embodiments.

[0383] like Figure 14 As shown, Figure 14 This is a schematic block diagram illustrating an apparatus 1400 for XX according to an embodiment of the present disclosure. The apparatus 1400 may be a base station. (Refer to...) Figure 14 The device 1400 includes a processing component 1422, a wireless transmit / receive component 1424, an antenna component 1426, and a signal processing section specific to the wireless interface. The processing component 1422 may further include one or more processors. One of the processors in the processing component 1422 may be configured to implement the downlink control information size alignment method described in any of the above embodiments.

[0384] Figure 15 This is a schematic block diagram illustrating an apparatus 1500 for XX according to embodiments of the present disclosure. For example, apparatus 1500 may be a terminal, such as a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, etc.

[0385] Reference Figure 15The device 1500 may include one or more of the following components: a processing component 1502, a memory 1504, a power supply 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.

[0386] Processing component 1502 typically controls the overall operation of device 1500, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1502 may include one or more processors 1520 to execute instructions to implement all or part of the steps of the downlink control information size alignment determination method described in any of the above embodiments. Furthermore, processing component 1502 may include one or more modules to facilitate interaction between processing component 1502 and other components. For example, processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502.

[0387] The memory 1504 is configured to store various types of data to support the operation of the device 1500. Examples of this data include instructions for any application or method operating on the device 1500, contact data, phonebook data, messages, pictures, videos, etc.

[0388] Power supply component 1506 provides power to various components of device 1500. Power supply component 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 1500.

[0389] The multimedia component 1508 includes a screen that provides an output interface between the device 1500 and the 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 touchscreen to receive input signals from the user.

[0390] Audio component 1510 is configured to output and / or input audio signals. For example, audio component 1510 includes a microphone (MIC) configured to receive external audio signals when device 1500 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1504 or transmitted via communication component 1516. In some embodiments, audio component 1510 also includes a speaker for outputting audio signals.

[0391] I / O interface 1512 provides an interface between processing component 1502 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0392] The sensor assembly 1514 includes one or more sensors for providing condition assessments of various aspects of the device 1500.

[0393] Communication component 1516 is configured to facilitate wired or wireless communication between device 1500 and other devices. Device 1500 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or combinations thereof. In one exemplary embodiment, communication component 1516 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1516 also includes a near-field communication (NFC) module to facilitate 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.

[0394] In an exemplary embodiment, the apparatus 1500 may be implemented 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 components to perform the downlink control information size alignment determination method described in any of the above embodiments.

[0395] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1504 including instructions, which can be executed by a processor 1520 of the device 1500 to complete the downlink control information size alignment determination method described in any of the above embodiments. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0396] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0397] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for determining the size alignment of downlink control information, characterized in that, The method, executed by a terminal, includes: Receive the first downlink control information used to schedule multiple cells; A reference cell is determined from at least one first cell corresponding to the first downlink control information; It is determined that traditional downlink control information and the first downlink control information participate in alignment in the reference cell, and it is determined that traditional downlink control information participates in alignment in a second cell among the at least one first cell, wherein the second cell is a cell other than the reference cell among the first cells.

2. The method according to claim 1, characterized in that, The first downlink control information includes at least one of the following: First downlink control information used to schedule downlink transmissions; The first downlink control information used to schedule uplink transmissions.

3. The method according to claim 2, characterized in that, The at least one first cell includes at least one of the following: The cell set corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells included in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

4. The method according to any one of claims 1 to 3, characterized in that, The reference cell includes at least one of the following: The cell with the smallest cell index among the at least one first cell; The cell with the largest cell index in at least one first cell; The cell with the fewest number of dimensions configured with conventional downlink control information among the at least one first cell; The cell used to calculate blind detection resources in at least one first cell; The at least one first cell is a cell configured with the search space corresponding to the first downlink control information.

5. The method according to claim 4, characterized in that, The blind detection resources include at least one of the following: Blind inspection BD resources; Control Channel Element (CCE).

6. The method according to any one of claims 1 to 3, characterized in that, The traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include: The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number; The number of conventional downlink control information scrambled by RNTI other than the C-RNTI is less than or equal to the second number.

7. The method according to claim 6, characterized in that, The first quantity is 3 or 4, and the second quantity is 1.

8. A method for aligning the size of downlink control information, characterized in that, Performed by a network device, the method includes: A reference cell is determined in at least one first cell corresponding to the first downlink control information used for scheduling multiple cells; wherein, in the reference cell, traditional downlink control information and the first downlink control information participate in alignment, and traditional downlink control information participates in alignment in a second cell among the at least one first cell, and the second cell is a cell other than the reference cell among the first cells; The first downlink control information is sent to the terminal.

9. The method according to claim 8, characterized in that, The first downlink control information includes at least one of the following: First downlink control information used to schedule downlink transmissions; The first downlink control information used to schedule uplink transmissions.

10. The method according to claim 9, characterized in that, The at least one first cell includes at least one of the following: The cell set corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells included in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

11. The method according to any one of claims 8 to 10, characterized in that, The reference cell includes at least one of the following: The cell with the smallest cell index among the at least one first cell; The cell with the largest cell index in at least one first cell; The cell with the fewest number of dimensions configured with conventional downlink control information among the at least one first cell; The cell used to calculate blind detection resources in at least one first cell; The at least one first cell is a cell configured with the search space corresponding to the first downlink control information.

12. The method according to claim 11, characterized in that, The blind detection resources include at least one of the following: Blind inspection BD resources; Control Channel Element (CCE).

13. The method according to any one of claims 8 to 10, characterized in that, The traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include: The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number; The number of conventional downlink control information scrambled by RNTI other than the C-RNTI is less than or equal to the second number.

14. The method according to claim 13, characterized in that, The first quantity is 3 or 4, and the second quantity is 1.

15. A device for determining the size alignment of downlink control information, characterized in that, The device includes: The receiving module is configured to receive first downlink control information for scheduling multiple cells; The processing module is configured to determine a reference cell in at least one first cell corresponding to the first downlink control information; determine that traditional downlink control information and the first downlink control information participate in alignment in the reference cell; and determine that traditional downlink control information participates in alignment 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.

16. The apparatus according to claim 15, characterized in that, The first downlink control information includes at least one of the following: First downlink control information used to schedule downlink transmissions; The first downlink control information used to schedule uplink transmissions.

17. The apparatus according to claim 16, characterized in that, The at least one first cell includes at least one of the following: The cell set corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells included in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

18. The apparatus according to any one of claims 15 to 17, characterized in that, The reference cell includes at least one of the following: The cell with the smallest cell index among the at least one first cell; The cell with the largest cell index in at least one first cell; The cell with the fewest number of dimensions configured with conventional downlink control information among the at least one first cell; The cell used to calculate blind detection resources in at least one first cell; The at least one first cell is a cell configured with the search space corresponding to the first downlink control information.

19. The apparatus according to claim 18, characterized in that, The blind detection resources include at least one of the following: Blind inspection BD resources; Control Channel Element (CCE).

20. The apparatus according to any one of claims 15 to 17, characterized in that, The traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include: The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number; The number of conventional downlink control information scrambled by RNTI other than the C-RNTI is less than or equal to the second number.

21. The apparatus according to claim 20, characterized in that, The first quantity is 3 or 4, and the second quantity is 1.

22. A downlink control information size alignment device, characterized in that, The device includes: The processing module is configured to determine a reference cell in at least one first cell corresponding to the first downlink control information used for scheduling multiple cells; wherein, in the reference cell, traditional downlink control information and the first downlink control information participate in alignment, and in a second cell in at least one first cell, traditional downlink control information participates in alignment, and the second cell is a cell other than the reference cell in the first cells; The sending module is configured to send the first downlink control information to the terminal.

23. The apparatus according to claim 22, characterized in that, The first downlink control information includes at least one of the following: First downlink control information used to schedule downlink transmissions; The first downlink control information used to schedule uplink transmissions.

24. The apparatus according to claim 23, characterized in that, The at least one first cell includes at least one of the following: The cell set corresponding to the first downlink control information used for scheduling downlink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission includes the following cells; The cell set corresponding to the first downlink control information used for scheduling uplink transmission, and the cells included in the cell set corresponding to the first downlink control information used for scheduling uplink transmission.

25. The apparatus according to any one of claims 22 to 24, characterized in that, The reference cell includes at least one of the following: The cell with the smallest cell index among the at least one first cell; The cell with the largest cell index in at least one first cell; The cell with the fewest number of dimensions configured with conventional downlink control information among the at least one first cell; The cell used to calculate blind detection resources in at least one first cell; The at least one first cell is a cell configured with the search space corresponding to the first downlink control information.

26. The apparatus according to claim 25, characterized in that, The blind detection resources include at least one of the following: Blind inspection BD resources; Control Channel Element (CCE).

27. The apparatus according to any one of claims 22 to 24, characterized in that, The traditional downlink control information in each cell scheduled by the first downlink control information meets preset conditions, wherein the preset conditions include: The number of traditional downlink control information scrambled with the Cell Radio Network Temporary Identifier (C-RNTI) is less than or equal to the first number; The number of conventional downlink control information scrambled by RNTI other than the C-RNTI is less than or equal to the second number.

28. The apparatus according to claim 27, characterized in that, The first quantity is 3 or 4, and the second quantity is 1.

29. A downlink control information size alignment system, characterized in that, The device includes a terminal and a network device, wherein the terminal is configured to implement the downlink control information size alignment determination method according to any one of claims 1 to 6, and the network device is configured to implement the downlink control information size alignment method according to any one of claims 7 to 12.

30. A communication device, characterized in that, include: processor; Memory used to store computer programs; When the computer program is executed by the processor, it implements the downlink control information size alignment determination method according to any one of claims 1 to 7.

31. A communication device, characterized in that, include: processor; Memory used to store computer programs; When the computer program is executed by the processor, it implements the downlink control information size alignment method according to any one of claims 8 to 14.

32. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the downlink control information size alignment determination method according to any one of claims 1 to 7.

33. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the downlink control information size alignment method according to any one of claims 8 to 14.

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