Downlink control information indication method and device, equipment and storage medium

Abstract

The invention discloses a downlink control information indication method and device, equipment and a storage medium, and relates to the field of communication. The method comprises: receiving first downlink control information (DCI), the first DCI being used for scheduling N data channels, the first DCI comprising a first information indication domain, the first information indication domain being used for indicating transmission information for data channels of at least one cell in a scheduled cell combination; wherein the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer. Therefore, the terminal equipment can obtain the transmission information indicated by the data channel of at least one cell in the scheduled cell combination.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202280096931.9, titled "Method, Apparatus, Device, and Storage Medium for Indicating Downlink Control Information", which is the Chinese national phase entry of PCT International Patent Application PCT / CN2022 / 142128 with a filing date of December 26, 2022. Technical Field

[0002] This application relates to the field of communications, and in particular, to a method, apparatus, device, and storage medium for indicating downlink control information. Background Art

[0003] In the related art, it is supported to schedule data channels of multiple cells through one Downlink Control Information (DCI). Since different cells are likely to be pre-configured with different transmission configuration parameters, such as Bandwidth Part (BWP) parameters, open-loop power control parameters, priority parameters, etc., and these transmission configuration parameters are used to determine the transmission information of the data channels, the problem to be solved is how to indicate the transmission information corresponding to multiple cells through this DCI. Summary of the Invention

[0004] Embodiments of this application provide a method, apparatus, device, and storage medium for indicating downlink control information, and the technical solutions are as follows:

[0005] According to one aspect of this application, a method for indicating downlink control information is provided. The method is executed by a terminal device, and the method includes:

[0006] Receiving a first Downlink Control Information (DCI), where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field, and the first information indication field is used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination;

[0007] Wherein, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0008] According to one aspect of this application, a method for indicating downlink control information is provided. The method is executed by a network device, and the method includes:

[0009] Sending a first DCI, where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field, and the first information indication field is used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination;

[0010] Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0011] According to one aspect of the present application, there is provided an apparatus for indicating downlink control information, the apparatus comprising:

[0012] A receiving module, configured to receive a first DCI, the first DCI being used to schedule N data channels, the first DCI including a first information indication field, the first information indication field being used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination;

[0013] Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0014] According to one aspect of the present application, there is provided an apparatus for indicating downlink control information, the apparatus comprising:

[0015] A sending module, configured to send a first DCI, the first DCI being used to schedule N data channels, the first DCI including a first information indication field, the first information indication field being used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination;

[0016] Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0017] According to one aspect of the present application, there is provided a terminal device, the terminal comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the processor is configured to load and execute the executable instructions to implement the downlink control information indication method as described in the above aspect.

[0018] According to one aspect of the present application, there is provided a network device, the network device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the processor is configured to load and execute the executable instructions to implement the downlink control information indication method as described in the above aspect.

[0019] According to one aspect of the present application, there is provided a computer-readable storage medium, in which executable instructions are stored, and the executable instructions are loaded and executed by the processor to implement the downlink control information indication method as described in the above aspect.

[0020] According to one aspect of the present application, there is provided a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to execute to implement the method for indicating downlink control information as described in the above aspect.

[0021] According to one aspect of the present application, there is provided a chip, which includes a programmable logic circuit and / or program instructions, and is used to implement the method for indicating downlink control information as described in the above aspect when the chip runs.

[0022] According to one aspect of the present application, there is provided a computer program, which includes computer instructions. A processor of a computer device executes the computer instructions to cause the computer device to execute the method for indicating downlink control information as described in the above aspect.

[0023] The technical solutions provided by the embodiments of the present application at least include the following beneficial effects:

[0024] The terminal device receives a first DCI for scheduling N data channels, and the first DCI includes a first information indication field, so that the terminal device can obtain the transmission information indicated by the data channels of at least one cell in the scheduled cell combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 FIG. shows a schematic diagram of a communication system provided by some illustrative embodiments of the present application;

[0027] Figure 2 FIG. shows a schematic flowchart of a method for indicating downlink control information provided by some illustrative embodiments of the present application;

[0028] Figure 3 FIG. shows a schematic flowchart of a method for indicating downlink control information provided by some illustrative embodiments of the present application;

[0029] Figure 4 FIG. shows a schematic flowchart of a method for indicating downlink control information provided by some illustrative embodiments of the present application;

[0030] Figure 5 The flowchart shows a method for indicating downlink control information provided by some exemplary embodiments of the present application;

[0031] Figure 6 The flowchart shows a method for indicating downlink control information provided by some exemplary embodiments of the present application;

[0032] Figure 7 The block diagram shows a device for indicating downlink control information provided by some exemplary embodiments of the present application;

[0033] Figure 8 The block diagram shows a device for indicating downlink control information provided by some exemplary embodiments of the present application;

[0034] Figure 9 The schematic diagram shows a communication device provided by some exemplary embodiments of the present application. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the present application clearer, the following further describes the embodiments of the present application in detail with reference to the accompanying drawings. Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0036] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present 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 or 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 in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0038] First, the related technologies involved in the embodiments of the present application are introduced:

[0039] Multi-carrier scheduling:

[0040] In the "Multi-Carrier" working item, the feature of supporting a Downlink Control Information (DCI) to schedule multiple Physical Downlink Shared Channels (PDSCHs) or Physical Uplink Shared Channels (PUSCHs) of multiple cells is supported. Here, the carrier and the cell can be regarded as the same concept. A set of cells that can be scheduled by DCI format 0_X or DCI format 1_X forms a Set of Cells, and multiple sets of cells that can be scheduled by DCI format 0_X or DCI format 1_X form Multiple Set of Cells. Among them, X represents a positive integer other than 1 and 2. It can be understood that a Set of Cells is a unit (or understood as a granularity) of multi-carrier scheduling (i.e., multi-cell scheduling, Multi-Cell Scheduling) configuration.

[0041] In a Set of Cells, it includes one or more Cell Combinations. A Cell Combination is a combination of cells that can be co-scheduled by DCI format 0_X or DCI format 1_X. A Cell Combination is a subset or the entire set of a Set of Cells.

[0042] Exemplarily, the network device configures {Cell 1, Cell 2, Cell 3, Cell 4} as the first Set of Cells, and {Cell 5, Cell 6, Cell 7, Cell 8} as the second Set of Cells. The Cell Combination is a subset or the entire set of {Cell 1, Cell 2, Cell 3, Cell 4}, or the Cell Combination is a subset or the entire set of {Cell 5, Cell 6, Cell 7, Cell 8}. For example, in the first Set of Cells, the Cell Combinations that can be scheduled by DCI format 0_X or DCI format 1_X are shown in Table 1 below:

[0043] Table 1 Cell Combinations of the First Set of Cells

[0044] Cell combination index (Index) Co-scheduled cells / cell combinations 1 Cell 1+cell 2 2 Cell 3+cell 4 3 Cell 1+cell 2+cell 3 4 Cell 2+cell 3+cell 4 5 Cell 1+cell 2+cell 3+cell 4

[0045] DCI field:

[0046] Currently, in the discussion of DCI format 0_X or DCI format 1_X for scheduling at least one cell, the DCI fields can be divided into the following three types:

[0047] 1. Type-1 field:

[0048] · Type-1A field: A single field for indicating common information for all co-scheduled cells;

[0049] · Type-1B field: A single field for jointly indicating separate information for each of the co-scheduled cells;

[0050] · Type-1C field: A single field for indicating information for one of the co-scheduled cells.

[0051] 2. Type-2 field: Fields for indicating separate information for each of the co-scheduled cells.

[0052] 3. Type-3 field: Fields that are shared or used individually by each of the co-scheduled cells according to explicit configuration, or fields used individually by each subgroup.

[0053] Note: A subgroup includes a subset of co-scheduled cells, and a single field is typically applied to co-scheduled cells belonging to the same subgroup.

[0054] Note: If the corresponding field is not included in DCI format 0_X / 1_X (if any), the handling of any parameters applicable to multi-cell scheduling will be discussed separately.

[0055] The corresponding protocol (Agreement) is described as follows:

[0056] For discussing field design of DCI format 0_X / 1_X which schedules more than one cell, reformulate the types of DCI fields as below:

[0057] 1. Type-1 field:

[0058] · Type-1A field: A single field indicating common information to all the co-scheduled cells;

[0059] · Type-1B field: A single field indicating separate information to each of co-scheduled cells via joint indication;

[0060] ·Type-1C field: A single field indicating an information to only one of co-scheduled cells.

[0061] 2.Type-2 field: Separate field for each of the co-scheduled cells.

[0062] 3.Type-3 field: Common or separate to each of the co-scheduled cells, or separate to each sub-group, dependent on explicit configuration.

[0063] Note: One sub-group comprises a subset of co-scheduled cells where a single field is commonly applied to the co-scheduled cell(s) belonging to a same sub-group.

[0064] Note: Handling of any parameters applicable to multi-cell scheduling where corresponding fields are not included in DCI format 0_X / 1_X (if any) will be separately discussed.

[0065] BWP indication field in traditional DCI formats (DCI format 0_1 / 1_1 / 0_2 / 1_2):

[0066] In the related art, it is supported to configure up to 4 Bandwidth Parts (BWPs) for a User Equipment (UE) through specific Radio Resource Control (RRC) signaling, namely 4 Downlink BWPs and 4 Uplink BWPs; in addition, the UE will naturally also have an Initial Downlink BWP and an Initial Uplink BWP. In this way, in fact, a UE can have 5 BWPs configured by high-layer signaling for both uplink and downlink respectively. However, the Initial Downlink BWP and the Initial Uplink BWP are not UE-dedicated BWPs configured by RRC dedicated signaling. The value range of the BWP Identity (BWP-Id) is [0, …, 4], that is, 5 BWP numbers are supported. Among them, BWP-Id = 0 indicates the Initial Downlink BWP or the Initial Uplink BWP, and BWP-Id = 1 to 4 indicate the 4 UE-dedicated BWPs configured by RRC dedicated signaling.

[0067] The related art also supports a BWP switching mechanism triggered by DCI, that is, in the scheduling DCI (DCI format 0_1 / 1_1 / 0_2 / 1_2), there is a BWP Indicator field, and the size of the BWP Indicator field is 0 bit or 1 bit or 2 bits, which is determined according to the number of BWPs configured by RRC signaling (excluding the Initial BWP). The specific mechanism is as follows:

[0068] · When the number of BWPs n BWP,RRC (excluding the Initial BWP) configured by RRC signaling is less than or equal to 3, the number of bits of the BWP Indicator field is Where represents rounding up, and n BWP = n BWP,RRC + 1; the mapping relationship between the BWP Indicator field and the BWP number is shown in Table 2 below. At this time, it is supported to switch the current BWP to any one of the Initial BWP and the BWPs configured by RRC signaling through DCI scheduling.

[0069] Table 2 Mapping relationship between the BWP Indicator field and the BWP number

[0070]

[0071] · When the number of BWPs n BWP,RRC (excluding the Initial BWP) configured by RRC signaling is greater than 3 (i.e., 4), the number of bits of the BWP Indicator field is Where n BWP= n BWP,RRC ; The mapping relationship between the BWP indication field and the BWP number is shown in Table 3 below. At this time, it does not support switching the current BWP to the initial BWP through DCI scheduling, and only supports switching the current BWP to any one of the BWPs configured by RRC signaling through DCI scheduling.

[0072] Table 3 Mapping relationship between BWP indication field and BWP number

[0073]

[0074] The corresponding protocol (Agreement) is described as follows:

[0075] Bandwidth part indicator - 0, 1 or 2 bits as determined by the number of UL BWPs n BWP,RRC configured by higher layers, excluding the initial UL bandwidth part. The bitwidth for this field is determined as bits, where

[0076] - n BWP = n BWP,RRC + 1 if n BWP,RRC ≤ 3, in which case the bandwidth part indicator is equivalent to the ascending order of the higher layer parameter BWP-Id;

[0077] - otherwise n BWP = n BWP,RRC , in which case the bandwidth part indicator is defined in Table 7.3.1.1.2-1.

[0078] Open-loop power control parameter indication field in traditional DCI formats (DCI format 0_1 / 0_2):

[0079] In the related art, when there is a conflict in the transmission resources of Enhanced Mobile Broadband (eMBB) PUSCH and Ultra Reliable and Low Latency Communication (URLLC) PUSCH, by adjusting the transmission power of URLLC PUSCH or eMBB PUSCH, the received signal-to-noise ratio of URLLC PUSCH can be improved, thereby ensuring the reliability of URLLC PUSCH. Specifically, when implemented, by adding an open-loop power control parameter indication field in the scheduling DCI (DCI format 0_1 / 0_2), the open-loop power control parameter (Open-Loop Power Control Parameter, P0) of the currently scheduled PUSCH can be dynamically adjusted. Taking the P0 indication field in DCI format 0_1 as an example, the determination method of the number of bits it contains is as follows:

[0080] Open-Loop Power Control Parameter SetIndication - 0 or 1 or 2 bits.

[0081] · If the higher layer parameter p0-PUSCH-SetList is not configured, the open-loop power control parameter indication field is 0 bit;

[0082] · If the higher layer parameter p0-PUSCH-SetList is configured, the open-loop power control parameter indication field is 1 bit or 2 bits.

[0083] - If the DCI format contains a Sounding Reference Signal (SRS) resource indicator field, the open-loop power control parameter indication field is 1 bit;

[0084]

[0085] - If the DCI format does not contain an SRS resource indicator field, the open-loop power control parameter indication field is 1 bit or 2 bits, depending on the value of olpc-ParameterSetDCI-0-1.

[0086] · 0bit if the higher layer parameter p0-PUSCH-SetList is notconfigured:

[0087] · 1or 2bits otherwise.

[0088] ​-1 bit if SRS resource indicator is present in the DCI format 0_1;

[0089] -1 or 2 bits as determined by higher layer parameter olpc-ParameterSetDCI-0-1 if SRS resource indicator is not present in the DCI format 0_1.

[0090] Exemplarily, the configuration of the open-loop power control parameter indication field is as follows:

[0091]

[0092]

[0093] Configure the number of bits for indicating the open-loop power control parameter set for DCI format 0_1 / 0_2 when SRI is not configured in the DCI. The open-loop power control parameter indication field is 2 bits only when SRI is not present in DCI format 0_1. The parameter olpc-ParameterSetDCI-0-1 applies to DCI format 0_1, and the parameter olpc-parameterSetDCCI-0-2 applies to DCI format 0_2 (see Article 7.3.1 of TS 38.212

[17] and Article 11 of TS 38.213

[13] ). (olpc-ParameterSetDCI-0-1, olpc-ParameterSetDCI-0-2:

[0094] Configures the number of bits for Open-loop power control parameter set indication for DCI format 0_1 / 0_2 in case SRI is not configured in the DCI. 2 bits is applicable only if SRI is not present in the DCI format 0_1. The field olpc-ParameterSetDCI-0-1 applies to DCI format 0_1 and the field olpc-ParameterSetDCI-0-2 applies to DCI format 0_2 (see TS 38.212

[17] , clause 7.3.1 and TS 38.213

[13] , clause 11).)

[0095] Parameter p0-PUSCH-SetList:

[0096] Configure one additional P0-PUSCH-Set per SRI. If present, the one bit or 2 bits in the DCI is used to dynamically indicate among the P0 value from the existing P0-PUSCH-AlphaSet and the P0 value(s) from the P0-PUSCH-Set (See TS 38.212

[17] , clause 7.3.1 and TS 38.213

[13] , clause 17).

[0097] Configure one additional P0-PUSCH-Set per SRI. If present, the one bit or 2 bits in the DCI is used to dynamically indicate among the P0 value from the existing P0-PUSCH-AlphaSet and the P0 value(s) from the P0-PUSCH-Set (See TS 38.212

[17] , clause 7.3.1 and TS 38.213

[13] , clause 17).

[0098] The usage of the open-loop power control parameter indication field in DCI format 0_1 / 0_2 is as follows:

[0099] 1. If there is no SRI field in DCI format 0_1 / 0_2, then:

[0100] - If p0-PUSCH-Set is configured, the DCI contains an open-loop power control parameter indication field:

[0101] · When the open-loop power control parameter indication field in DCI format 0_1 / 0_2 is "0" or "00", the terminal device determines the P0 value according to the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0102] · When the open-loop power control parameter indication field in DCI format 0_1 / 0_2 is "1" or "01", the terminal device determines the P0 value according to the following value: the first value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0103] · When the open-loop power control parameter indication field in DCI format 0_1 / 0_2 is "10", the terminal device determines the P0 value according to the following value: the second value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0104] - If p0-PUSCH-Set is not configured, the terminal device determines the P0 value according to the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0105] 2. If there is an SRI field in DCI format 0_1 / 0_2 and the DCI contains an open-loop power control parameter indication field:

[0106] · In DCI format 0_1 / 0_2, when the open-loop power control parameter indication field is "1", the terminal device determines the P0 value according to the following value: the first value in P0-PUSCH-Set corresponding to the p0-PUSCH-SetId corresponding to the SRI field value in P0-PUSCH-Set (a first value in P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value).

[0107] · Otherwise, the terminal device determines the P0 value according to the following value: the P0 value corresponding to the p0-PUSCH-AlphaSetId corresponding to the SRI field value (p0-PUSCH-AlphaSetId value that is mapped to the SRI field value).

[0108] Priority indication field in traditional DCI formats (DCI format 0_1 / 1_1 / 0_2 / 1_2):

[0109] In the related art, coexistence of eMBB services and URLLC services in the same UE is supported. To solve the problem of intra-UE prioritization, the concept of physical layer priority is introduced for uplink PUSCH transmission and PUCCH transmission. In DCI format 0_1 / 1_1 / 0_2 / 1_2, there can be a 1-bit priority indication field for indicating the priority of PUSCH or PUCCH scheduled by DCI. Taking DCI format 0_1 as an example, the number of bits included in its priority indication field is as follows:

[0110] If the higher layer parameter priorityIndicatorDCI-0-1 is not configured, the priority indication field is 0 bit; otherwise, it is 1 bit. (Priority indicator - 0 bit if higher layer parameter priorityIndicatorDCI-0-1 is not configured; otherwise 1 bit as defined in Clause 9 in [5, TS 38.213].)

[0111] The parameters priorityIndicatorDCI-1-1 and priorityIndicatorDCI-1-2 are used to configure the presence of the "priority indicator field" in DCI format 1_1 / 1_2. If this field does not exist, then in DCI format 1_1 / 1_2, the priority indicator field is 0 bits. The parameter priorityIndicatorDCI-1-1 applies to DCI format 1_1, and the parameter priorityIndicatorDCI-1-2 applies to DCI format 1_2 (see TS 38.212

[17] , clause 7.3.1 and TS 38.213

[13] , clause 9). (priorityIndicatorDCI-1-1, priorityIndicatorDCI-1-2:

[0112] Configure the presence of "priority indicator" in DCI format 1_1 / 1_2. When the field is absent in the IE, then 0 bit for "priority indicator" in DCI format 1_1 / 1_2. The field priorityIndicatorDCI-1-1 applies to DCI format 1_1 and the field priorityIndicatorDCI-1-2 applies to DCI format 1_2, respectively (see TS 38.212

[17] , clause 7.3.1 and TS 38.213

[13] , clause 9).)

[0113] In the related art, the BWP indication field, the open-loop power control parameter indication field, and the priority indication field have been determined as Type-1 fields, that is, a single field is included in DCI format 0_X or DCI format 1_X to be used as the BWP indication field, the open-loop power control parameter indication field, or the priority indication field. Then, there are still the following problems to be solved:

[0114] 1. How are the bit numbers of the individual BWP indication field, open-loop power control parameter indication field, and priority indication field included in DCI format 0_X / 1_X determined? Considering that the BWP indication field, open-loop power control parameter indication field, and priority indication field are all related to the transmission configuration parameters specific to a particular BWP (BWP-specific), and different cells can be configured with different relevant transmission configuration parameters, it is necessary to determine how the bit number of a single field is determined when DCI format 0_X / 1_X is used to schedule the PDSCH / PUSCH of multiple cells;

[0115] 2. After determining the bit numbers of the individual BWP indication field, open-loop power control parameter indication field, and priority indication field included in DCI format 0_X / 1_X, it is also necessary to determine how different code points of these fields are interpreted for different cells.

[0116] Based on the above problems, the present application provides a method for indicating downlink control information, clarifying how to determine the bit number of a single field and how to interpret a single field.

[0117] Figure 1 The schematic diagram of a communication system provided by an exemplary embodiment of the present application is shown. The communication system includes a network device 110 and a terminal device 120.

[0118] The network device 110 in this application provides wireless communication functions. The network device 110 includes, but is not limited to: Evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (e.g., Home Evolved Node B, or Home Node B, HNB), Baseband Unit (BBU), Access Point (AP) in a Wireless Fidelity (Wi-Fi) system, wireless relay node, wireless backhaul node, Transmission Point (TP), or Transmission and Reception Point (TRP), etc. It can also be a Next Generation Node B (gNB) or Transmission Point (TRP or TP) in a 5th Generation (5G) mobile communication system, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or it can also be a network node constituting a gNB or a transmission point, such as a Baseband Unit (BBU) or a Distributed Unit (DU), etc., or a base station in a Beyond Fifth Generation (B5G) or 6th Generation (6G) mobile communication system, etc., or a Core Network (CN), Fronthaul, Backhaul, Radio Access Network (RAN), network slice, etc., or a serving cell, Primary Cell (PCell), Primary Secondary Cell (PSCell), Special Cell (SpCell), Secondary Cell (SCell), neighboring cell, etc. of a terminal device.

[0119] The terminal device 120 in this application, also known as User Equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication device, user agent, user device. The terminal includes, but is not limited to: handheld devices, wearable devices, in-vehicle devices, and Internet of Things devices, etc., such as: mobile phones, tablets, e-book readers, laptop computers, desktop computers, televisions, game consoles, Mobile Internet Devices (MIDs), Augmented Reality (AR) terminals, Virtual Reality (VR) terminals, and Mixed Reality (MR) terminals, wearable devices, gamepads, electronic tags, controllers, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, wireless terminals in remote medical surgery, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), set-top boxes (STBs), customer premise equipment (CPE), etc.

[0120] The network device 110 and the terminal device 120 communicate with each other through a certain air interface technology, such as the Uu interface.

[0121] Exemplarily, there are two communication scenarios between the network device 110 and the terminal device 120: an uplink communication scenario and a downlink communication scenario. Among them, uplink communication means sending signals to the network device 110; downlink communication means sending signals to the terminal device 120.

[0122] The technical solutions provided in the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Advanced Long Term Evolution (LTE-A) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5G mobile communication system, New Radio (NR) system, evolved system of the NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Terrestrial Networks (NTN) system, Non-Terrestrial Networks (NTN) system, Wireless Local Area Networks (WLAN), Wireless Fidelity (Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, and can also be applicable to the evolved systems subsequent to the 5G NR system, and can also be applicable to B5G, 6G and subsequent evolved systems. In some embodiments of the present application, "NR" can also be referred to as a 5G NR system or a 5G system. Among them, the 5G mobile communication system can include Non-Standalone (NSA) and / or Standalone (SA).

[0123] The technical solutions provided in the embodiments of the present application can also be applied to Machine Type Communication (MTC), Long Term Evolution-Machine (LTE-M), Device to Device (D2D) networks, Machine to Machine (M2M) networks, Internet of Things (IoT) networks, or other networks. Among them, the IoT network can include, for example, the vehicle network. Among them, the communication methods in the vehicle network system are collectively referred to as Vehicle to X (V2X, where X can represent anything). For example, the V2X can include: Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication, communication between vehicle and pedestrian (Vehicle to Pedestrian, V2P), or Vehicle to Network (V2N) communication, etc.

[0124] The communication system provided in this embodiment can be applied to, but not limited to, at least one of the following communication scenarios: uplink communication scenario, downlink communication scenario, sidelink communication scenario.

[0125] The "cell group" in this embodiment refers to the cell group where the scheduled cell combination is located, and can also be referred to as the first cell group; the "cell combination" in this embodiment refers to the scheduled cell combination, and can also be referred to as the first cell combination.

[0126] Figure 2 The flowchart of the method for indicating downlink control information provided in some exemplary embodiments of the present application is shown. Taking this method as being Figure 1 executed by the terminal device 120 shown as an example for illustrative purposes. The method includes at least some of the following steps:

[0127] Step 210: Receive a first DCI, where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field.

[0128] The first information indication field is used to indicate the transmission information of at least one of the N scheduled data channels, or the first information indication field is used to respectively indicate the transmission information for the data channels of at least one cell in the scheduled cell combination. Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to N cells, and N is a positive integer, that is, N is equal to 1 and / or N is greater than 1.

[0129] The data channel includes a PDSCH or a PUSCH. N PDSCHs or PUSCHs correspond to N cells, and the N cells belong to a cell combination, and the cell combination belongs to a set of cells.

[0130] In summary, for the method provided in this application, the terminal device receives a first DCI for scheduling N data channels. The first DCI includes a first information indication field, enabling the terminal device to obtain the transmission information respectively indicated for the data channels of at least one cell in the scheduled cell combination.

[0131] Figure 3 The flowchart shows the indication method of downlink control information provided by some exemplary embodiments of this application. Taking the method being executed by Figure 1 the terminal device 120 shown as an example for illustrative purposes. The method includes at least some of the following steps:

[0132] Step 310: Receive a first DCI. The first DCI is used to schedule N data channels, and the first DCI includes a first information indication field;

[0133] The first information indication field is used to respectively indicate the transmission information for the data channels of at least one cell in the scheduled cell combination, or is used to respectively indicate the transmission information for the N scheduled data channels. Among them, the scheduled cell combination is a combination of N cells, and the N data channels correspond to N cells, and N is a positive integer. That is, N is equal to 1 and / or N is greater than 1.

[0134] The data channel is a PDSCH or a PUSCH. N PDSCHs or PUSCHs correspond to N cells, and the N cells belong to a cell combination, and the cell combination belongs to a set of cells.

[0135] Step 330: Determine the transmission information respectively indicated by the first information indication field for the data channels of at least one cell in the scheduled cell combination.

[0136] The first information indication field is used to respectively indicate the transmission information for the data channels of at least one cell in the scheduled cell combination.

[0137] The transmission information includes at least one of information related to the BWP (for example, the BWP information where the data channel is located), information related to open-loop power control parameters (for example, the open-loop power control parameter information used for data channel transmission), and information related to priorities (for example, the priority information corresponding to the data channel). The information related to priorities includes the priority of the data channel scheduled by the first DCI.

[0138] In some embodiments, the first information indication field is the transmission information indicated by the data channels of at least one cell in the scheduled cell combination, and is determined based on the number of bits of the first information indication field. It is supported that the terminal device determines the transmission information indicated by the data channels of at least one cell in the scheduled cell combination based on the number of bits, and the transmission information for the data channels of at least one cell can be indicated with fewer DCI resources.

[0139] In some embodiments, the number of bits of the first is determined based on at least one of the following:

[0140] · The number of bits of the second corresponding to each cell in the cell group;

[0141] · The transmission configuration parameters corresponding to each cell in the cell group, where the transmission configuration parameters are used to configure information related to transmission information;

[0142] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0143] · The bit configuration parameter, which is used to indicate the number of bits of the first information indication field.

[0144] Alternatively, the number of bits of the first is determined based on at least one of the following:

[0145] · The number of bits of the second corresponding to at least one cell in the cell group, where the number of bits of the second corresponding to at least one cell in the cell group is greater than 0;

[0146] · The transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0147] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0148] It should be understood that if the transmission configuration parameter is the BWP configuration parameter, the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is the number of BWPs, then the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group (excluding the initial BWP) is greater than 0, or the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group (including the initial BWP) is greater than 1.

[0149] · The bit configuration parameter, which is used to indicate the number of bits of the first information indication field.

[0150] Alternatively, the number of bits of the first is determined based on at least one of the following:

[0151] · The second number of bits corresponding to each cell in the cell combination;

[0152] · The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to transmission information;

[0153] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0154] · The bit configuration parameter, which is used to indicate the first number of bits of the first information indication field.

[0155] Alternatively, the first number of bits is determined based on at least one of the following:

[0156] · The second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0157] · The transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with transmission configuration parameters;

[0158] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0159] It should be understood that if the transmission configuration parameter is a BWP configuration parameter, then the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is the number of BWPs. In this case, the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination (excluding the initial BWP) is greater than 0, or the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination (including the initial BWP) is greater than 1.

[0160] · The bit configuration parameter, which is used to indicate the first number of bits of the first information indication field.

[0161] Wherein, the cell combination belongs to a cell group.

[0162] In some embodiments, the transmission configuration parameter is a configuration parameter related to transmission information. If the transmission configuration parameter is a BWP configuration parameter, it includes configuration parameters related to at least one of the number of BWPs, the index of the BWP, and data channels related to the BWP (such as PDSCH, PUSCH). If the transmission configuration parameter is an open-loop power control configuration parameter, it includes configuration parameters related to at least one of the field for configuring open-loop power control parameters and the number of bits of the field for configuring open-loop power control parameters. If the transmission configuration parameter is a priority configuration parameter, it includes configuration parameters related to the field for configuring the priority indication.

[0163] The "method for determining the number of bits" in this application refers to the method or steps for determining the number of bits, including the method in tabular form and / or the method in text form.

[0164] In some embodiments, the second number of bits is determined according to at least one of the following: the method for determining the number of bits of the information field corresponding to the first information indication field in the second DCI, the transmission configuration parameters corresponding to each cell in the cell group, the second DCI is used to schedule 1 data channel, and the second DCI includes at least one of DCI format 0_1, DCI format 1_1, DCI format 0_2, and DCI format 1_2;

[0165] Alternatively, the method for determining the second number of bits is: the method for determining the number of bits of the information field corresponding to each cell when scheduling the data channels of each cell in at least one cell separately, the information field is the information field corresponding to the first information indication field, and the number of bits of the information field is the number of bits of the information field corresponding to the first information indication field;

[0166] Alternatively, the second number of bits is determined according to the following method:

[0167] · In the case where the first information indication field includes a BWP indication field

[0168] When the number of BWPs n configured by RRC signaling for the first cell BWP,RRC (except for the initial BWP) is less than or equal to 3, the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC +1. Here, the first cell is any cell in the cell combination.

[0169] When the number of BWPs n configured by RRC signaling for the first cell BWP,RRC (except for the initial BWP) is greater than 3 (i.e., 4), the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC .

[0170] · In the case where the first information indication field includes an open-loop power control parameter indication field

[0171] If the first parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0;

[0172] Here, the first parameter is used to configure the open-loop power control parameter indication field. For example, the first parameter is p0-PUSCH-SetList.

[0173] If the first parameter is configured for the first cell, the second number of bits corresponding to the first cell is 1 or 2;

[0174] Wherein, if the first DCI includes an SRS resource indication field, the second number of bits corresponding to the first cell is 1;

[0175] If the first DCI does not include an SRS resource indication field, the second number of bits corresponding to the first cell is 1 or 2, specifically depending on the value of a second parameter, where the second parameter is used to configure the number of bits of an open-loop power control parameter indication field. For example, the second parameter is at least one of olpc-ParameterSetDCI-0-X and olpc-ParameterSetDCI-1-X.

[0176] · Case where the first information indication field includes a priority indication field

[0177] The priority includes the priority of the data channel scheduled by the first DCI.

[0178] If a third parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0;

[0179] Wherein, the third parameter is used to configure the priority indication field. For example, the third parameter includes at least one of priorityIndicatorDCI-0-X and priorityIndicatorDCI-1-X.

[0180] If a third parameter is configured for the first cell, the second number of bits corresponding to the first cell is 1.

[0181] In some embodiments, the first number of bits is at least one of the following or any one of them:

[0182] · The maximum value of the second number of bits corresponding to each cell in the cell group;

[0183] · The minimum value of the second number of bits corresponding to each cell in the cell group;

[0184] · The average value of the second number of bits corresponding to each cell in the cell group;

[0185] · The median value of the second number of bits corresponding to each cell in the cell group;

[0186] · The maximum value of the transmission configuration parameters corresponding to each cell in the cell group;

[0187] · The minimum value of the transmission configuration parameters corresponding to each cell in the cell group;

[0188] · The average value of the transmission configuration parameters corresponding to each cell in the cell group;

[0189] · The median value of the transmission configuration parameters corresponding to each cell in the cell group;

[0190] · The maximum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0191] The elements included in the transmission configuration parameters refer to the configuration content in the transmission configuration parameters. If the transmission configuration parameter is a BWP configuration parameter, the number of elements refers to the number of BWPs, and further, it can refer to the number of BWPs other than the initial BWP.

[0192] · The minimum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0193] · The average value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0194] · The median value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group.

[0195] Alternatively, the first number of bits is at least one or any one of the following:

[0196] · The maximum value among the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0197] · The minimum value among the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0198] · The average value among the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0199] · The median value among the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0200] · The maximum value in the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0201] · The minimum value in the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0202] · The average value in the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0203] · The median value in the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0204] · The maximum value among the numbers of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0205] · The minimum value among the numbers of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0206] · The average value among the numbers of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0207] · The median value among the numbers of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0208] Alternatively, the first number of bits is at least one of the following or any one of them:

[0209] · The maximum value among the second numbers of bits corresponding to each cell in the cell combination;

[0210] · The minimum value among the second numbers of bits corresponding to each cell in the cell combination;

[0211] · The average value among the second numbers of bits corresponding to each cell in the cell combination;

[0212] · The median value among the second numbers of bits corresponding to each cell in the cell combination;

[0213] · The maximum value among the transmission configuration parameters corresponding to each cell in the cell combination;

[0214] · The minimum value among the transmission configuration parameters corresponding to each cell in the cell combination;

[0215] · The average value among the transmission configuration parameters corresponding to each cell in the cell combination;

[0216] · The median value among the transmission configuration parameters corresponding to each cell in the cell combination;

[0217] · The maximum value among the numbers of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0218] · The minimum value among the numbers of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0219] · The average value among the numbers of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0220] · The median value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination.

[0221] Alternatively, the first number of bits is at least one of the following or any one of them:

[0222] · The maximum value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0223] · The minimum value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0224] · The average value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0225] · The median value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0226] · The maximum value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0227] · The minimum value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0228] · The average value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0229] · The median value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0230] · The maximum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0231] · The minimum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0232] · The average value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0233] · The median value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0.

[0234] In some embodiments, the terminal device does not expect at least one of the following:

[0235] · The second number of bits corresponding to each cell in the cell group is different;

[0236] · The transmission configuration parameters corresponding to each cell in the cell group are different;

[0237] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group is different.

[0238] Alternatively, the terminal device does not expect at least one of the following:

[0239] · The second number of bits corresponding to at least one cell in the cell group is different, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0240] · The transmission configuration parameters corresponding to at least one cell in the cell group are different, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0241] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is different, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0242] Alternatively, the terminal device does not expect at least one of the following:

[0243] · The second number of bits corresponding to each cell in the cell combination is different;

[0244] · The transmission configuration parameters corresponding to each cell in the cell combination are different;

[0245] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination is different.

[0246] Alternatively, the terminal device does not expect at least one of the following:

[0247] · The second number of bits corresponding to at least one cell in the cell combination is different, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0248] · The transmission configuration parameters corresponding to at least one cell in the cell combination are different, and at least one cell in the cell combination is configured with the transmission configuration parameters;

[0249] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is different, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0.

[0250] In some embodiments, the terminal device expects at least one of the following:

[0251] · The second number of bits corresponding to each cell in the cell group is the same;

[0252] · The transmission configuration parameters corresponding to each cell in the cell group are the same;

[0253] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group is the same.

[0254] Alternatively, the terminal device expects at least one of the following:

[0255] · The second number of bits corresponding to at least one cell in the cell group is the same, and the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0256] · The transmission configuration parameters corresponding to at least one cell in the cell group are the same, and at least one cell in the cell group is configured with the transmission configuration parameters;

[0257] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is the same, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0258] Alternatively, the terminal device expects at least one of the following:

[0259] · The second number of bits corresponding to each cell in the cell combination is the same;

[0260] · The transmission configuration parameters corresponding to each cell in the cell combination are the same;

[0261] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination is the same.

[0262] Alternatively, the terminal device expects at least one of the following:

[0263] · The second number of bits corresponding to at least one cell in the cell combination is the same, and the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0264] · The transmission configuration parameters corresponding to at least one cell in the cell combination are the same, and at least one cell in the cell combination is configured with the transmission configuration parameters;

[0265] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is the same, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0.

[0266] In some embodiments, the first information indication field is the transmission information respectively indicated by the data channels of at least one cell in the scheduled cell combination, and is determined based on at least one of the following:

[0267] · The second number of bits corresponding to each cell in the cell combination;

[0268] · The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to transmission information;

[0269] · The first number of bits of the first information indication field;

[0270] Wherein, the second number of bits is determined based on at least one of the following: the determination method of the number of bits of the information field corresponding to the first information indication field in the second DCI, the transmission configuration parameters corresponding to each cell in the cell group. The second DCI is used to schedule 1 data channel;

[0271] Alternatively, the determination method of the second number of bits is: the determination method of the number of bits of the information field corresponding to each cell in at least one cell when scheduling the data channel of each cell separately.

[0272] In some embodiments, when the second number of bits corresponding to the first cell is zero, the first information indication field does not indicate transmission information for the data channel of the first cell; and / or, when the second number of bits corresponding to the first cell is greater than zero, the first information indication field indicates transmission information for the data channel of the first cell;

[0273] Wherein, the first cell is any cell in the cell combination.

[0274] In some embodiments, the case where the second number of bits is zero is equivalent to at least one of the following cases:

[0275] · When the first information indication field is used to indicate the transmission information of the BWP, the first cell is not configured with a BWP other than the initial BWP;

[0276] · When the first information indication field is used to indicate the configuration information of the open-loop power control parameters, the first parameter corresponding to the first cell is not configured, where the first parameter is used to configure the open-loop power control parameter indication field, for example, the first parameter is p0-PUSCH-SetList;

[0277] · When the first information indication field is used to indicate the configuration information of the priority, the third parameter corresponding to the first cell is not configured, where the third parameter is used to configure the priority indication field. For example, the third parameter is priorityIndicatorDCI-0-X.

[0278] In some embodiments, the first information indication field does not indicate the transmission information of the data channel of the first cell. It can be understood that the first information indication field is not applied to the data channel of the first cell. It can also be understood that the transmission information indicated by the first information indication field for the data channel of the first cell is empty or default information.

[0279] Similarly, when the first information indication field indicates the transmission information of the data channel of the first cell, it can be understood that the first information indication field is applied to the data channel of the first cell. It can also be understood that the transmission information indicated by the first information indication field for the data channel of the first cell is non-empty.

[0280] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits of the first information indication field is Y;

[0281] When the code point of the first information indication field is the first code point, the transmission information indicated by the first information indication field for the data channel of the first cell is determined based on the interpretation method corresponding to the first code point; or, the transmission information indicated by the first information indication field for the data channel of the first cell is determined based on the interpretation method corresponding to the first code point and the transmission configuration parameters corresponding to each cell in the cell combination;

[0282] Wherein, X is an integer greater than or equal to 0, Y is an integer greater than or equal to 0, and the first code point refers to the first m code points among the code points corresponding to Y bits in the first information indication field. In some embodiments, m is 2 X , or less than 2 X of an integer, or greater than 2 X of an integer. However, this does not mean a limitation on m.

[0283] The "interpretation method" in this application includes the method of interpreting code points, or the mapping relationship between code points and transmission information. For example, in the form of a table, the mapping relationship between code points and transmission information is provided; or in the form of a text description, the mapping relationship between code points and transmission information is provided.

[0284] In some embodiments, the interpretation method corresponding to the first code point includes: the interpretation method of the information field corresponding to the first information indication field in the second DCI, where the second DCI is used to schedule 1 data channel, and the second DCI includes at least one of DCI format 0_1, DCI format 1_1, DCI format 0_2, and DCI format 1_2;

[0285] Alternatively, the interpretation method corresponding to the first code point includes: the determination method of the number of information field bits corresponding to scheduling the data channels of each cell in at least one cell separately; or, the determination method of the number of information field bits corresponding to scheduling the data channel of the first cell separately.

[0286] Alternatively, the interpretation method corresponding to the first code point is as described below:

[0287] · The case where the first information indication field includes a BWP indication field

[0288] When the number of BWPs n configured by RRC signaling in the first cell BWP,RRC (except for the initial BWP) is less than or equal to 3, the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC +1. The mapping relationship between the BWP indication field and the BWP number refers to Table 2.

[0289] When the number of BWPs n configured by RRC signaling in the first cell BWP，RRC (except for the initial BWP) is greater than 3 (i.e., 4), the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC . The mapping relationship between the BWP indication field and the BWP number refers to Table 3.

[0290] · The case where the first information indication field includes an open-loop power control parameter indication field

[0291] The case where there is no SRI field in the first DCI:

[0292] If a first parameter is configured, the first parameter is used to configure the open-loop power control parameter indication field. For example, the first parameter is p0-PUSCH-Set, and the first information indication field included in the first DCI is the open-loop power control parameter indication field:

[0293] i) When the first information field is "0" or "00", the terminal device determines the P0 value according to the following parameter: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0294] ii) When the first information field is "1" or "01", the terminal device determines the P0 value according to the following parameter: the first value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0295] iii) When the first information field is "10", the terminal device determines the P0 value according to the following parameter: the second value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0296] If the first parameter is not configured, the terminal device determines the P0 value according to the following parameter: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0297] When the first DCI has an SRI field:

[0298] i) When the first information field is "1", the terminal device determines the P0 value according to the following parameter: the first value in the P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value.

[0299] ii) Otherwise, the terminal device determines the P0 value according to the following parameter: the p0-PUSCH-AlphaSetId value that is mapped to the SRI field value.

[0300] · When the first information indication field includes a priority indication field

[0301] If a third parameter is configured, the third parameter is used to configure the priority indication field. For example, if the third parameter is priorityIndicatorDCI-0-X or priorityIndicatorDCI-1-X, the priority indication field is 1 bit. For specific content, reference can be made to the related technologies [5, TS 38.213].

[0302] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits of the first information indication field is Y;

[0303] When the code point of the first information indication field is the second code point, the first information indication field is ignored, that is, the first information indication field is not interpreted;

[0304] Wherein, the second code point refers to the code points other than the first code point among the code points corresponding to Y bits, and the first code point refers to the first m code points among the code points corresponding to Y bits in the first information indication field.

[0305] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits of the first information indication field is Y;

[0306] When the code point of the first information indication field is the second code point, the first information indication field is the transmission information indicated by the data channel of the first cell, determined based on the decoding method of the remainder code point; or, the first information indication field is the transmission information indicated by the data channel of the first cell, determined based on the decoding method of the remainder code point and the transmission configuration parameters corresponding to each cell in the cell combination. The remainder code point is the remainder of the second code point divided by 2 X result;

[0307] Wherein, the second code point refers to the code points other than the first code point among the code points corresponding to Y bits, and the first code point refers to the first m code points among the code points corresponding to Y bits in the first information indication field.

[0308] In some embodiments, the decoding method corresponding to the remainder code point includes: the decoding method of the information field corresponding to the first information indication field in the second DCI, and the second DCI is used to schedule 1 data channel;

[0309] Or, the determination method of the number of bits of the information field corresponding to each cell in at least one cell when scheduling separately, or the determination method of the number of bits of the information field corresponding to the first cell when scheduling the data channel of the first cell separately.

[0310] In some embodiments, Y is greater than 2 X .

[0311] In some embodiments, the number of second bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the number of first bits in the first information indication field is Y;

[0312] The first information indication field is the transmission information indicated by the data channel of the first cell, and is determined based on the decoding method of the third code point;

[0313] Wherein, the third code point is the code point corresponding to the Y bits in the first information indication field.

[0314] In some embodiments, the decoding method corresponding to the third code point includes: the decoding method of the information field corresponding to the first information indication field in the second DCI, and the second DCI is used to schedule one data channel;

[0315] Or, the determination method of the number of information field bits corresponding to each cell in at least one cell when scheduling separately, or the determination method of the number of information field bits corresponding to the first cell when scheduling separately.

[0316] In some embodiments, Y is less than or equal to 2 X 。

[0317] In some embodiments, the transmission configuration parameters corresponding to at least one cell in the cell combination include: transmission information corresponding to at least two sets of configurations;

[0318] Wherein, the code points corresponding to the transmission information of at least one cell belonging to the same set of configurations are the same, and this code point is the code point of the first information indication field, and the first DCI is used to schedule the transmission information corresponding to at least one cell belonging to the same set of configurations.

[0319] In some embodiments, the first information indication field includes at least one of the following fields:

[0320] · BWP indication field;

[0321] · Open-loop power control parameter indication field;

[0322] · Priority indication field.

[0323] In some embodiments, the transmission configuration parameters include at least one of the following:

[0324] · BWP configuration parameters;

[0325] · Open-loop power control set list parameters;

[0326] · The first DCI includes an SRS resource indication field;

[0327] · The first DCI does not include an SRS resource indication field;

[0328] · Transmission configuration parameters for configuring the number of bits of the open-loop power control parameter indication field;

[0329] · Priority configuration parameters.

[0330] In summary, in the method provided in this application, the terminal device receives a first DCI for scheduling N data channels. The first DCI includes a first information indication field, and the terminal device can obtain the transmission information indicated for the data channels of at least one cell in the scheduled cell combination. When the first DCI schedules N data channels, it supports the terminal device to interpret the transmission information of each scheduled data channel, or the transmission information of the data channels of each cell in the scheduled cell combination.

[0331] Figure 4 The flowchart of the indication method of the downlink control information provided by some exemplary embodiments of this application is shown. Taking the method being Figure 1 executed by the terminal device 120 shown as an example for illustrative purposes. The method includes at least some of the following steps:

[0332] Step 410: Receive a first DCI, where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field;

[0333] The first information indication field is used to respectively indicate the transmission information for the data channels of at least one cell in the scheduled cell combination. Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to N cells, and N is a positive integer. That is, N is equal to 1 and / or N is greater than 1.

[0334] The data channel is a PDSCH or a PUSCH, the N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination, the cell combination belongs to a cell group, and the cell group contains M cells, where M is greater than or equal to N and M is a positive integer.

[0335] Step 430: Determine the first number of bits of the first information indication field.

[0336] The terminal device determines the first number of bits of the first information indication field based on at least one of the following methods:

[0337] Method (1): The second number of bits corresponding to each cell in the cell group / cell combination;

[0338] The following takes the second number of bits corresponding to each cell in the cell group as an example for illustration. If the first number of bits is determined based on the second number of bits corresponding to each cell in the cell combination, the relevant content for determining the first number of bits based on the second number of bits corresponding to each cell in the cell group can be referred to.

[0339] Determine the second number of bits corresponding to each cell in the cell group according to the determination method of the number of bits of the information field corresponding to the first information indication field in the traditional DCI format. The traditional DCI format includes at least one of the following: DCI format 0_1, DCI format 0_2, DCI format 1_1, DCI format 1_2.

[0340] Alternatively, when scheduling the data channels of each cell separately with a DCI, determine the second number of bits corresponding to each cell in the cell group according to the determination method of the number of bits of the DCI information field based on the transmission information of each cell.

[0341] Alternatively, determine the second number of bits corresponding to each cell in the cell group in the following manner:

[0342] · Case where the first information indication field includes a BWP indication field

[0343] When the number of BWPs n configured by RRC signaling for the first cell BWP,RRC (excluding the initial BWP) is less than or equal to 3, the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC + 1.

[0344] When the number of BWPs n configured by RRC signaling for the first cell BWP,RRC (excluding the initial BWP) is greater than 3 (i.e., 4), the second number of bits corresponding to the first cell is where n BWP = n BWP,RRC .

[0345] · Case where the first information indication field includes an open-loop power control parameter indication field

[0346] If the first parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0;

[0347] where the first parameter is used to configure the open-loop power control parameter indication field. For example, the first parameter is p0-PUSCH-SetList.

[0348] If the first parameter is configured for the first cell, the second number of bits corresponding to the first cell is 1 or 2;

[0349] where, if the first DCI includes an SRS resource indication field, the second number of bits corresponding to the first cell is 1;

[0350] If the first DCI does not contain an SRS resource indication field, the second number of bits corresponding to the first cell is 1 or 2, depending on the value of a second parameter that configures the number of bits of an open-loop power control parameter indication field. For example, the second parameter is olpc-ParameterSetDCI-0-X.

[0351] · The case where the first information indication field includes a priority indication field

[0352] If a third parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0;

[0353] wherein, the third parameter is used to configure the priority indication field. For example, the third parameter is priorityIndicatorDCI-0-X.

[0354] If a third parameter is configured for the first cell, the second number of bits corresponding to the first cell is 1.

[0355] In some implementations, if the format of the first DCI is DCI format 0_X, the determination method of the number of bits of the information field corresponding to DCI format 0_1 / 0_2 can be referred to; if the format of the first DCI is DCI format 1_X, the determination method of the number of bits of the information field corresponding to DCI format 1_1 / 1_2 can be referred to.

[0356] For example, based on the maximum or minimum value of the second number of bits corresponding to all cells in the cell group, the first number of bits of the first information indication field in the first DCI is determined.

[0357] When determining the first number of bits of the first information indication field in the first DCI based on the maximum value of the second number of bits corresponding to all cells in the cell group, the indication of the transmission information is very flexible, but an additional interpretation method needs to be designed when the second number of bits corresponding to a certain cell in the cell group is less than the first number of bits of the first information indication field.

[0358] When determining the first number of bits of the first information indication field in the first DCI based on the minimum value of the second number of bits corresponding to all cells in the cell group, the DCI overhead is small, but the flexibility of the indication of the transmission information is lacking.

[0359] Method (2): Transmission configuration parameters corresponding to each cell in the cell group / cell combination;

[0360] The following takes the transmission configuration parameters corresponding to each cell in the cell group as an example for description. If the first number of bits is determined based on the transmission configuration parameters corresponding to each cell in the cell combination, the relevant content for determining the first number of bits based on the transmission configuration parameters corresponding to each cell in the cell group can be referred to.

[0361] The transmission configuration parameters include at least one of the following:

[0362] · BWP configuration parameters;

[0363] Such as the number of configured uplink or downlink BWPs (excluding the initial BWP).

[0364] · Open-loop power control set list parameters;

[0365] Such as p0-PUSCH-SetList.

[0366] · Whether there is an SRS resource indication field in DCI format 0_X;

[0367] · Transmission configuration parameters for configuring the number of bits of the open-loop power control parameter indication field in DCI format 0_X for each cell;

[0368] Such as olpc-ParameterSetDCI-0-X.

[0369] · Priority configuration parameters.

[0370] For example, transmission configuration parameters for configuring whether there is a priority indication field in DCI format 0_X / 1_X for each cell, such as priorityIndicatorDCI-0-X, priorityIndicatorDCI-1-X.

[0371] For example, based on the maximum or minimum value of the transmission configuration parameters corresponding to all cells in the cell group, determine the number of bits of the first information indication field in the first DCI.

[0372] Taking the first information indication field including the open-loop power control parameter indication field and the format of the first DCI being DCI format 0_X as an example, the first DCI configures the first parameter for the cells in the cell group. For example, the first parameter is p0-PUSCH-SetList, the first information indication field does not include the SRS resource indication field, and the number of bits of the open-loop power control parameter indication field is configured by configuring the second parameter. For example, the second parameter is olpc-ParameterSetDCI-0-X. When some cells in the cell group are configured with the second parameter as 1 and some are configured with the second parameter as 2, then the maximum value of the transmission configuration parameters corresponding to all cells in the cell group is 2, and the minimum value is 1. If the first number of bits is determined according to the maximum value, then the first number of bits is 2. If the first number of bits is determined according to the minimum value, then the first number of bits is 1.

[0373] Taking the first information indication field including a priority indication field and the format of the first DCI being DCI format 1_X as an example, the first DCI configures the third parameter for the cells in the cell group. For example, the third parameter is priorityIndicatorDCI-1-X. As long as at least one cell in the cell group is configured with the third parameter, the maximum value among the transmission configuration parameters corresponding to all the cells in the cell group is 1, and the first number of bits is 1. As long as at least one cell in the cell group is not configured with the third parameter, the minimum value among the transmission configuration parameters corresponding to all the cells in the cell group is 0, and the first number of bits is 0.

[0374] When determining the first number of bits in the first information indication field of the first DCI based on the maximum or minimum value among the transmission configuration parameters corresponding to each cell in the cell group, the corresponding advantages and disadvantages can be referred to those described in "(1) The second number of bits corresponding to each cell in the cell group", which will not be elaborated here.

[0375] Method (3): The number of elements included in the transmission configuration parameter corresponding to each cell in the cell group / cell combination;

[0376] The following takes the number of elements included in the transmission configuration parameter corresponding to each cell in the cell group as an example for illustration. If the number of bits in the first information indication field of the first DCI is determined based on the number of elements included in the transmission configuration parameter corresponding to each cell in the cell combination, the relevant content for determining the number of bits based on the number of elements included in the transmission configuration parameter corresponding to each cell in the cell group can be referred to.

[0377] For example, based on the maximum or minimum value among the number of elements included in the transmission configuration parameters corresponding to all the cells in the cell group, the first number of bits in the first information indication field of the first DCI is determined.

[0378] Taking the first information indication field including a BWP indication field as an example, the transmission configuration parameter is the BWP configuration parameter, and the number of elements refers to the number of BWPs other than the initial BWP. If the maximum value among the number of BWPs (other than the initial BWP) corresponding to each cell in the cell group is 4, the first number of bits is 2. If the minimum value among the number of BWPs (other than the initial BWP) corresponding to each cell in the cell group is 1, the first number of bits is 1.

[0379] When determining the first number of bits in the first information indication field of the first DCI based on the maximum or minimum value among the number of elements included in the transmission configuration parameter corresponding to each cell in the cell group, the corresponding advantages and disadvantages can be referred to those described in "(1) The second number of bits corresponding to each cell in the cell group", which will not be elaborated here.

[0380] Method (4): Bit configuration parameter;

[0381] The bit configuration parameter is used to configure the number of first bits of the first information indication field.

[0382] Method (5): The terminal device does not expect at least one of the following:

[0383] · The number of second bits corresponding to each cell in the cell group is different;

[0384] · The transmission configuration parameters corresponding to each cell in the cell group are different;

[0385] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group is different;

[0386] · The number of second bits corresponding to each cell in the cell combination is different;

[0387] · The transmission configuration parameters corresponding to each cell in the cell combination are different;

[0388] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination is different.

[0389] That is to say, the number of second bits corresponding to each cell in the cell group (combination) is the same, and / or the transmission configuration parameters corresponding to each cell in the cell group (combination) are the same, and / or the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group (combination) is the same.

[0390] The method for determining the number of first bits based on method (5) avoids problems in indication or interpretation caused by different numbers of second bits corresponding to different cells in the cell group / cell combination through restrictions in scheduling.

[0391] Next, the method for determining the first number of bits of the first information indication field will be illustrated by examples:

[0392] · The case where the first information indication field includes the BWP indication field

[0393] Exemplarily, taking a cell group including 3 cells: cell 1, cell 2, and cell 3 as an example, the BWP configuration of each cell is as follows (the following BWPs are all downlink BWPs or all uplink BWPs):

[0394] Cell 1: In addition to the initial BWP, the network device configures 1 UE-specific BWP (UE Specific BWP) through high-layer parameters, and the corresponding BWP number is 1, that is, BWP ID = 1. Then, according to the method for determining the number of second bits described above, the number of second bits corresponding to cell 1 is calculated as log 2 (1 + 1) = 1 bit.

[0395] Cell 2: In addition to the initial BWP, the network device configures 3 UE-specific BWPs through higher-layer parameters, and the corresponding BWP numbers are 1, 2, and 3, that is, BWP ID = 1 / 2 / 3. Then, according to the determination method of the second number of bits described above, the calculated second number of bits corresponding to Cell 2 is log 2 (1 + 3) = 2 bits.

[0396] Cell 3: In addition to the initial BWP, the network device configures 4 UE-specific BWPs through higher-layer parameters, and the corresponding BWP numbers are 1, 2, 3, and 4, that is, BWP ID = 1 / 2 / 3 / 4. Then, according to the determination method of the second number of bits described above, the calculated second number of bits corresponding to Cell 3 is log 2 (4) = 2 bits.

[0397] Taking the determination of the first number of bits according to method (1) as an example, if the first number of bits is determined based on the maximum value among the second number of bits corresponding to all cells in the cell group, then the first number of bits = max{1, 2, 2} = 2 bits. If the first number of bits is determined based on the minimum value among the second number of bits corresponding to all cells in the cell group, then the first number of bits = min{1, 2, 2} = 1 bit.

[0398] Taking the determination of the first number of bits according to method (2) as an example, assume the BWP configuration parameters of Cell 1, Cell 2, and Cell 3, such as the number of BWPs configured by the UE-specific configuration signaling. The maximum value of the BWP configuration parameters in Cell 1, Cell 2, and Cell 3 is 4, and the minimum value is 1. If the first number of bits is determined based on the maximum value of the BWP configuration parameters corresponding to all cells in the cell group, then the first number of bits = log 2 (4) = 2 bits. If the first number of bits is determined based on the minimum value of the BWP configuration parameters corresponding to all cells in the cell group, then the first number of bits = log 2 (1 + 1) = 1 bit.

[0399] The content of method (3) can refer to method (2) and will not be elaborated here.

[0400] Taking the determination of the first number of bits according to method (4) as an example, by explicitly configuring the bit configuration parameters, the terminal device is supported to determine the first number of bits based on the bit configuration parameters.

[0401] Taking the determination of the first number of bits according to method (5) as an example, the terminal device does not expect the second number of bits corresponding to cell 1, cell 2, and cell 3 to be different; or, the terminal device does not expect the BWP configuration parameters corresponding to cell 1, cell 2, and cell 3 to be different, such as the number of BWPs (excluding the initial BWP) configured by the UE specific BWP configuration signaling being different; or, the terminal device does not expect the number of elements included in the BWP configuration parameters corresponding to cell 1, cell 2, and cell 3 to be different. In this way, regardless of which cell is considered, the first number of bits is the same, and the terminal device can determine the first number of bits based on any one of the cells in the cell group.

[0402] · The case where the first information indication field includes the open-loop power control parameter indication field

[0403] Exemplarily, taking the cell group including 3 cells: cell 1, cell 2, and cell 3 as an example, it is assumed that there is no SRS resource indication field corresponding to cell 1, cell 2, and cell 3 in the first DCI. The open-loop power control parameter configuration of each cell is as follows:

[0404] Cell 1: The open-loop power control set list parameter is configured, such as p0-PUSCH-SetList; the corresponding olpc-ParameterSetDCI-0-X is 1. According to the determination method of the second number of bits described above, since the value of olpc-ParameterSetDCI-0-X is 1, the second number of bits corresponding to cell 1 is 1 bit.

[0405] Cell 2: The open-loop power control set list parameter is configured, such as p0-PUSCH-SetList; the corresponding olpc-ParameterSetDCI-0-X is 2. According to the determination method of the second number of bits described above, since the value of olpc-ParameterSetDCI-0-X is 2, the second number of bits corresponding to cell 2 is 2 bits.

[0406] Cell 3: The open-loop power control set list parameter is not configured. According to the determination method of the second number of bits described above, the second number of bits corresponding to cell 3 is 0 bit.

[0407] Taking the determination of the first number of bits according to method (1) as an example, if the first number of bits is determined based on the maximum value among the open-loop power control set list parameters corresponding to all cells in the cell group, then the first number of bits = max{1, 2, 0} = 2 bits. If the first number of bits is determined based on the minimum value among the open-loop power control set list parameters corresponding to all cells in the cell group, then the first number of bits = min{1, 2, 0} = 0 bit. That is to say, when determining the first number of bits, all the open-loop power control set list parameters corresponding to the cells in the cell group are considered.

[0408] Alternatively, only considering the cells in the cell group, according to the method for determining the second number of bits described above, determine the cells where the second number of bits is greater than 0, that is, cell 1 and cell 2. Then the first number of bits = max{1, 2} = 2 bits, or the first number of bits = min{1, 2} = 1 bit. That is to say, when determining the first number of bits, only consider the open-loop power control set list parameters corresponding to the cells in the cell group where the corresponding second number of bits is greater than 0, or only consider the open-loop power control set list parameters corresponding to the cells in the cell group that are configured with the first parameter, where the first parameter is used to configure the open-loop power control parameter indication field. For example, the first parameter is p0-PUSCH-SetList.

[0409] Taking the determination of the first number of bits according to method (2) as an example, assume that there is no SRS resource indication field corresponding to cell 1, cell 2, and cell 3 in the first DCI. Then, the second number of bits depends on whether the open-loop power control set list parameter configuration and the value of olpc-ParameterSetDCI-0-X are configured. Assume that cell 1 and cell 2 are configured with the open-loop power control set list parameters, cell 3 is not configured with the open-loop power control set list parameters, and the maximum value of olpc-ParameterSetDCI-0-X in cell 1 and cell 2 is 2. If cell 3 that is not configured with the open-loop power control set list parameters is not considered, the minimum value of olpc-ParameterSetDCI-0-X in cell 1 and cell 2 is 1. If cell 3 that is not configured with the open-loop power control set list parameters is considered, the minimum value of olpc-ParameterSetDCI-0-X in cell 1, cell 2, and cell 3 is 0.

[0410] Then the first number of bits is determined according to the maximum value 2 of olpc-ParameterSetDCI-0-X, and the first number of bits is 2 bits. Or the first number of bits is determined according to the minimum value of olpc-ParameterSetDCI-0-X. When considering the open-loop power control set list parameters corresponding to all cells in the cell group, the minimum value of olpc-ParameterSetDCI-0-X is 0, then the first number of bits is 0 bits; when only considering the open-loop power control set list parameters corresponding to the cells in the cell group where the corresponding second number of bits is greater than 0, the minimum value of olpc-ParameterSetDCI-0-X is 1, then the first number of bits is 1 bit.

[0411] Taking the determination of the first number of bits according to manner (5) as an example, if cell 3 without the configured open-loop power control set list parameter is considered, the terminal device does not expect the second number of bits corresponding to cell 1, cell 2, and cell 3 to be different; or, the terminal device does not expect the configuration parameters related to open-loop power control corresponding to cell 1, cell 2, and cell 3 to be different. For example, cell 1, cell 2, and cell 3 simultaneously satisfy at least one of the following: the open-loop power control set list parameter is configured, there is an SRS resource indication field corresponding to the cell in the first DCI, there is no SRS resource indication field corresponding to the cell in the first DCI, and the values of the corresponding olpc-ParameterSetDCI-0-X are the same.

[0412] If cell 3 without the configured open-loop power control set list parameter is not considered, the terminal device does not expect the second number of bits corresponding to cell 1 and cell 2 to be different; or, the terminal device does not expect the configuration parameters related to open-loop power control corresponding to cell 1 and cell 2 to be different. For example, cell 1 and cell 2 simultaneously satisfy at least one of the following: the open-loop power control set list parameter is configured, there is an SRS resource indication field corresponding to the cell in the first DCI, there is no SRS resource indication field corresponding to the cell in the first DCI, and the values of the corresponding olpc-ParameterSetDCI-0-X are the same.

[0413] In this way, regardless of which cell is considered, the first number of bits is the same, and the terminal device can determine the first number of bits based on any one of the cells in the cell group.

[0414] · Case where the first information indication field includes a priority indication field

[0415] Exemplarily, taking a cell group including 3 cells: cell 1, cell 2, and cell 3 as an example, the terminal does not expect the priority configuration parameters corresponding to cell 1, cell 2, and cell 3 to be different. For example, cell 1, cell 2, and cell 3 are all configured or not configured with priorityIndicatorDCI-0-X, or cell 1, cell 2, and cell 3 are all configured or not configured with priorityIndicatorDCI-1-X. If cell 1, cell 2, and cell 3 are all configured with priorityIndicatorDCI-0-X, and if the first DCI is in DCI format 0_X, the priorities of all PUSCHs scheduled by the first DCI are the same, which is the value indicated by the priority indication field in DCI format 0_X, and the first number of bits is 1 bit. If none of them are configured, the first number of bits is 0 bit.

[0416] In summary, for the method provided in this application, a terminal device receives a first DCI for scheduling N data channels. The first DCI includes a first information indication field, and the terminal device can determine the first number of bits of the first information indication field. Moreover, multiple ways to determine the first number of bits are provided, enhancing the flexibility and effectiveness of the use of the first information indication field. For example, when determining the first number of bits based on the maximum value, the indication of the transmission information is very flexible; when determining the first number of bits based on the minimum value, the DCI overhead is small; when determining the first number of bits based on the scheduling restrictions that the terminal does not expect, problems in indication or interpretation caused by different transmission configuration parameters corresponding to different cells in a cell group / cell combination are avoided, reducing the complexity of interpreting the first DCI.

[0417] Figure 5 FIG. shows a schematic flowchart of a method for indicating downlink control information provided by some exemplary embodiments of this application. Taking the method being Figure 1 executed by the illustrated terminal device 120 as an example for illustrative purposes. The method includes at least some of the following steps:

[0418] Step 510: Receive a first DCI, where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field;

[0419] The first information indication field is used to indicate the transmission information of at least one data channel among the N data channels scheduled, or the first information indication field is used to indicate the transmission information of the data channels of at least one cell among the N cells in the scheduled cell combination. Among them, the N cells corresponding to the N data channels belong to the cell combination, and N is a positive integer.

[0420] The data channel is a PDSCH or a PUSCH. The N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination, the cell combination belongs to a cell group, and the cell group includes M cells, where M is greater than or equal to N and M is a positive integer.

[0421] Step 530: Determine the transmission information indicated by the first information indication field for the data channels of the N cells respectively.

[0422] The terminal device determines the transmission information indicated by the first information indication field for the data channels of at least one cell respectively based on at least one of the following:

[0423] · The second number of bits corresponding to each cell in the cell combination;

[0424] · The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to the transmission information;

[0425] · The first number of bits of the first information indication field;

[0426] Among them, the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to the first information indication field in the second DCI, the transmission configuration parameters corresponding to each cell in the cell group, and the second DCI is used to schedule 1 data channel.

[0427] For the relevant content of the determination method of the second number of bits, reference can be made to the content in step 430, which will not be elaborated here.

[0428] Assume that the second number of bits corresponding to the first cell is X, and the first number of bits of the first information indication field is Y. The first cell is any cell in the cell combination or the cell corresponding to one of the N data channels scheduled by the first DCI.

[0429] If Y is greater than 2 X , the determination method is as follows:

[0430] When the code point of the first information indication field is the first code point, based on the interpretation method corresponding to the first code point, determine the transmission information indicated for the data channel of the first cell;

[0431] Among them, the first code point refers to the first m code points among the code points corresponding to Y bits in the first information indication field.

[0432] The interpretation method corresponding to the first code point includes: the interpretation method of the information field corresponding to the first information indication field in the second DCI, and the second DCI is used to schedule 1 data channel.

[0433] Or, the interpretation method corresponding to the first code point is as follows:

[0434] · The case where the first information indication field includes a BWP indication field

[0435] When the number of BWPs n configured by RRC signaling for the first cell BWPRRC (except for the initial BWP) is less than or equal to 3, the second number of bits corresponding to the first cell is Among them, n BWP = n BWP,RRC + 1. For the mapping relationship between the BWP indication field and the BWP number, refer to Table 2.

[0436] When the number of BWPs n configured by RRC signaling for the first cell BWP,RRC (except for the initial BWP) is greater than 3 (i.e., 4), the second number of bits corresponding to the first cell is Among them, n BWP = n BWP,RRC . For the mapping relationship between the BWP indication field and the BWP number, refer to Table 3.

[0437] · The case where the first information indication field includes the open-loop power control parameter indication field

[0438] The case where there is no SRI field in the first DCI:

[0439] If the first parameter is configured, the first parameter is used to configure the open-loop power control parameter indication field. For example, if the first parameter is p0-PUSCH-Set, the first information indication field included in the first DCI is the open-loop power control parameter indication field:

[0440] i) When the first information field is "0" or "00", the terminal device determines the P0 value according to the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0441] ii) When the first information field is "1" or "01", the terminal device determines the P0 value according to the following value: the first value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0442] iii) When the first information field is "10", the terminal device determines the P0 value according to the following value: the second value in the P0-PUSCH-Set with the lowest p0-PUSCH-SetID value.

[0443] If the first parameter is not configured, the terminal device determines the P0 value according to the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets.

[0444] The case where there is an SRI field in the first DCI:

[0445] i) When the first information field is "1", the terminal device determines the P0 value according to the following value: the first value in the P0-PUSCH-Set corresponding to the p0-PUSCH-SetId corresponding to the SRI field value in the P0-PUSCH-Set (a first value in P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value).

[0446] ii) Otherwise, the terminal device determines the P0 value according to the following value: the P0 value corresponding to the p0-PUSCH-AlphaSetId corresponding to the SRI field value (p0-PUSCH-AlphaSetId value that is mapped to the SRI field value).

[0447] · In the case where the first information indication field includes a priority indication field

[0448] If the third parameter is configured, the priority indication field is 1 bit, and the third parameter is used to configure the priority indication field. For example, the third parameter is at least one of priorityIndicatorDCI-0-X and priorityIndicatorDCI-1-X. For specific content, reference can be made to related technologies [5, TS 38.213].

[0449] Alternatively, the interpretation method of the first 2 X code points among the code points corresponding to the Y bits is the same as the interpretation method of the 2 X code points corresponding to the X bits of the information field corresponding to the first information indication field in the traditional DCI format corresponding to the first cell. The information field corresponding to the first information indication field is the information indication field in the DCI when a DCI separately schedules the data channels of each cell.

[0450] Among them, the information field corresponding to the first information indication field in the traditional DCI format, or the information field in the DCI when a DCI separately schedules the data channels of each cell.

[0451] When the code point of the first information indication field is the second code point, the first information indication field is ignored;

[0452] Alternatively, when the code point of the first information indication field is the second code point, based on the interpretation method of the remainder code point, the transmission information indicated for the data channel of the first cell is determined. The remainder code point is the remainder result of the second code point divided by 2 X ;

[0453] Among them, the second code point refers to the code points other than the first code point among the code points corresponding to the Y bits, and the first code point refers to the first m code points among the code points corresponding to the Y bits in the first information indication field.

[0454] That is, the decoding methods of the code points other than the first 2 X code points among the code points corresponding to the Y bits include the following two:

[0455] Method 1: Ignore the first information indication field;

[0456] Method 2: The decoding method of the Mth code point is the same as that of the M mod 2 X th code point. For example, the decoding method of the 2 X +1th code point is the same as the decoding method of the first code point corresponding to the X bits of the information field corresponding to the first information indication field in the traditional DCI format, and the decoding method of the 2 X +2th code point is the same as the decoding method of the second code point corresponding to the X bits of the information field corresponding to the first information indication field in the traditional DCI format, and so on.

[0457] If Y is less than or equal to 2 X , the determination method is as follows:

[0458] The decoding method of the code points corresponding to the Y bits is the same as the decoding methods of the first 2 Y code points corresponding to the X bits of the information field corresponding to the first information indication field in the traditional DCI format corresponding to the first cell.

[0459] Next, the method for indicating the transmission information of the data channels of N cells determined by the first information indication field will be illustrated by examples: Transmission information method:

[0460] Exemplarily, taking a cell group including 3 cells: cell 1, cell 2, and cell 3 as an example, the BWP configuration of each cell is as follows (the following BWPs are all downlink BWPs or all uplink BWPs):

[0461] Cell 1: Except for the initial BWP, the network device configures 1 UE-specific BWP (UE Specific BWP) through high-layer parameters, and the corresponding BWP number is 1, that is, BWP ID = 1. Then, according to the determination method of the second number of bits described above, the calculated second number of bits corresponding to cell 1 is log 2 (1 + 1) = 1 bit. Since the number of BWPs configured by high-layer parameters (except for the initial BWP) is less than 3, the mapping relationship between the BWP indication field and the BWP number of cell 1 refers to Table 2.

[0462] Cell 2: In addition to the initial BWP, the network device configures 3 UE-specific BWPs through higher-layer parameters. The corresponding BWP numbers are 1, 2, and 3, i.e., BWP ID = 1 / 2 / 3. Then, according to the determination method of the second number of bits described above, the calculated second number of bits corresponding to Cell 2 is log 2 (1 + 3) = 2 bits. Since the number of BWPs configured by higher-layer parameters (excluding the initial BWP) is equal to 3, the mapping relationship between the BWP indication field and the BWP number in Cell 2 refers to Table 2.

[0463] Cell 3: In addition to the initial BWP, the network device configures 4 UE-specific BWPs through higher-layer parameters. The corresponding BWP numbers are 1, 2, 3, and 4, i.e., BWP ID = 1 / 2 / 3 / 4. Then, according to the determination method of the second number of bits described above, the calculated second number of bits corresponding to Cell 3 is log 2 (4) = 2 bits. Since the number of BWPs configured by higher-layer parameters (excluding the initial BWP) is greater than 3, the mapping relationship between the BWP indication field and the BWP number in Cell 3 refers to Table 3.

[0464] Assume that the first number of bits is determined based on the maximum value among the second numbers of bits corresponding to all cells in the cell group. Then, the first number of bits = max{1, 2, 2} = 2 bits.

[0465] For Cell 1, Cell 2, and Cell 3, the interpretation information of the 2 2 = 4 code points in the BWP indication field of the first DCI is shown in Table 4 below.

[0466] Table 4 Interpretation Information of Code Points

[0467]

[0468] Assume that the first number of bits is determined based on the minimum value among the second numbers of bits corresponding to all cells in the cell group. Then, the first number of bits = max{1, 2, 2} = 1 bit.

[0469] For Cell 1, Cell 2, and Cell 3, the interpretation information of the 2 1 = 2 code points in the BWP indication field of the first DCI is shown in Table 5 below.

[0470] Table 5 Interpretation Information of Code Points

[0471]

[0472] Exemplarily, taking a cell group including 3 cells: Cell 1, Cell 2, and Cell 3 as an example, assume that there is no SRS resource indication field corresponding to Cell 1, Cell 2, and Cell 3 in the first DCI. The open-loop power control parameter configuration of each cell is as follows:

[0473] Cell 1: The open-loop power control set list parameter is configured, such as p0-PUSCH-SetList; the corresponding olpc-ParameterSetDCI-0-X is 1. According to the determination method of the second number of bits described above, since the value of olpc-ParameterSetDCI-0-X is 1, the second number of bits corresponding to Cell 1 is 1 bit.

[0474] Cell 2: The open-loop power control set list parameter is configured, such as p0-PUSCH-SetList; the corresponding olpc-ParameterSetDCI-0-X is 2. According to the determination method of the second number of bits described above, since the value of olpc-ParameterSetDCI-0-X is 2, the second number of bits corresponding to Cell 2 is 2 bits.

[0475] Cell 3: The open-loop power control set list parameter is not configured. According to the determination method of the second number of bits described above, the second number of bits corresponding to Cell 3 is 0 bit.

[0476] If the first number of bits of the open-loop power control parameter indication field in the first DCI is determined according to the maximum value of the second number of bits corresponding to Cell 1, Cell 2, and Cell 3, or the maximum value of the corresponding olpc-ParameterSetDCI-0-X, then the first number of bits is 2 bits. Then, for Cell 1, Cell 2, and Cell 3, the 2 2 = The decoding information of 4 code points is shown in Table 6 below.

[0477] Table 6 Decoding Information of Code Points

[0478]

[0479] If the first number of bits of the open-loop power control parameter indication field in the first DCI is determined according to the minimum value of the second number of bits corresponding to Cell 1 and Cell 2, or the minimum value of the corresponding olpc-ParameterSetDCI-0-X, then the first number of bits is 1 bit. Then, for Cell 1, Cell 2, and Cell 3, the 2 1 = The decoding information of 2 code points is shown in Table 7 below.

[0480] Table 7 Decoding Information of Code Points

[0481]

[0482]

[0483] In summary, for the method provided in this application, a terminal device receives a first DCI for scheduling N data channels. The first DCI includes a first information indication field, and the terminal device can obtain transmission information respectively indicated for the data channels of at least one cell in the scheduled cell combination. The terminal device is supported to interpret the first information indication field based on transmission configuration parameters, or a first number of bits, or a second number of bits, improving the flexibility of interpretation. And considering different determination methods of the first number of bits, corresponding transmission information determination methods are provided, providing a practical solution for the interpretation of the first information indication field and enhancing the flexibility and effectiveness of the use of the first information indication field.

[0484] Figure 6 FIG. shows a schematic flowchart of a method for indicating downlink control information provided by some exemplary embodiments of this application. Taking the method being executed by Figure 1 the network device 110 shown as an example for illustrative purposes. The method includes at least some of the following steps:

[0485] Step 620: Transmit transmission configuration parameters corresponding to a cell combination;

[0486] The network device pre-transmits transmission configuration parameters corresponding to at least one cell in the cell combination; or transmits transmission configuration parameters corresponding to each cell in the cell combination.

[0487] The transmission configuration parameters are used to configure information related to transmission information. For the same type of transmission information, the transmission configuration parameters of each cell can be the same or different.

[0488] For the convenience of subsequent DCI scheduling, the transmission configuration parameters corresponding to at least one cell in the cell combination include: transmission information corresponding to at least two sets of configurations;

[0489] Among them, the code points corresponding to the transmission information of at least one cell belonging to the same set of configurations are the same. This code point is the code point of the first information indication field, and the first DCI is used to schedule the transmission information corresponding to at least one cell belonging to the same set of configurations.

[0490] Step 640: Determine the first DCI;

[0491] Determining the first DCI can be understood as generating the first DCI or configuring the first DCI.

[0492] The code point of the first information indication field in the first DCI is determined based on the transmission information respectively indicated for the data channels of at least one cell in the scheduled cell combination. The transmission information indicated by the first DCI for the data channels of at least one cell belongs to the same set of configurations and corresponds to the same code point.

[0493] The first number of bits of the first information indication field in the first DCI is determined based on at least one of the following:

[0494] · The second number of bits corresponding to each cell in the cell group;

[0495] · The transmission configuration parameters corresponding to each cell in the cell group, where the transmission configuration parameters are used to configure information related to transmission;

[0496] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0497] · The bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field.

[0498] Alternatively, the first number of bits of the first information indication field in the first DCI is determined based on at least one of the following:

[0499] · The second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0500] · The transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with transmission configuration parameters;

[0501] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0502] · The bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field.

[0503] Alternatively, the first number of bits of the first information indication field in the first DCI is determined based on at least one of the following:

[0504] · The second number of bits corresponding to each cell in the cell combination;

[0505] · The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to transmission;

[0506] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0507] · The bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field.

[0508] Alternatively, the first number of bits of the first information indication field in the first DCI is determined based on at least one of the following:

[0509] · The second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0510] · The transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with transmission configuration parameters;

[0511] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0512] · The bit configuration parameter, which is used to indicate the first number of bits of the first information indication field.

[0513] Among them, the cell combination belongs to a cell group, and the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to each cell when scheduling the data channels of at least one cell separately, and the transmission configuration parameters corresponding to each cell in the cell group.

[0514] The first number of bits of the first information indication field in the first DCI is at least one of the following:

[0515] · The maximum value among the second numbers of bits corresponding to each cell in the cell group;

[0516] · The minimum value among the second numbers of bits corresponding to each cell in the cell group;

[0517] · The average value among the second numbers of bits corresponding to each cell in the cell group;

[0518] · The median value among the second numbers of bits corresponding to each cell in the cell group;

[0519] · The maximum value among the transmission configuration parameters corresponding to each cell in the cell group;

[0520] · The minimum value among the transmission configuration parameters corresponding to each cell in the cell group;

[0521] · The average value among the transmission configuration parameters corresponding to each cell in the cell group;

[0522] · The median value among the transmission configuration parameters corresponding to each cell in the cell group;

[0523] · The maximum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0524] · The minimum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0525] · The average value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0526] · The median value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group.

[0527] Alternatively, the first number of bits is at least one of the following:

[0528] · The maximum value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0529] · The minimum value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0530] · The average value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0531] · The median value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0532] · The maximum value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0533] · The minimum value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0534] · The average value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0535] · The median value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameter;

[0536] · The maximum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0537] · The minimum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0538] · The average value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0539] · The median value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0540] Alternatively, the first number of bits is at least one of the following:

[0541] · The maximum value of the second number of bits corresponding to each cell in the cell combination;

[0542] · The minimum value of the second number of bits corresponding to each cell in the cell combination;

[0543] · The average value of the second number of bits corresponding to each cell in the cell combination;

[0544] · The median value of the second number of bits corresponding to each cell in the cell combination;

[0545] · The maximum value of the transmission configuration parameters corresponding to each cell in the cell combination;

[0546] · The minimum value of the transmission configuration parameters corresponding to each cell in the cell combination;

[0547] · The average value of the transmission configuration parameters corresponding to each cell in the cell combination;

[0548] · The median value of the transmission configuration parameters corresponding to each cell in the cell combination;

[0549] · The maximum value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0550] · The minimum value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0551] · The average value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0552] · The median value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination.

[0553] Alternatively, the first number of bits is at least one of the following:

[0554] · The maximum value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0555] · The minimum value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0556] · The average value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0557] · The median value of the second number of bits corresponding to at least one cell in the cell combination, where the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0558] · The maximum value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0559] · The minimum value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0560] · The average value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0561] · The median value of the transmission configuration parameters corresponding to at least one cell in the cell combination, where at least one cell in the cell combination is configured with the transmission configuration parameters;

[0562] · The maximum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0563] · The minimum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0564] · The average value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0565] · The median value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0.

[0566] In some embodiments, the network device generates a first DCI based on at least one of the following that the terminal device does not expect:

[0567] · The second number of bits corresponding to each cell in the cell group is different;

[0568] · The transmission configuration parameters corresponding to each cell in the cell group are different;

[0569] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group is different.

[0570] Alternatively, the network device generates a first DCI based on at least one of the following that is not expected by the terminal device:

[0571] · The second number of bits corresponding to at least one cell in the cell group is different, and the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0572] · The transmission configuration parameters corresponding to at least one cell in the cell group are different, and at least one cell in the cell group is configured with the transmission configuration parameters;

[0573] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0574] Alternatively, the network device generates a first DCI based on at least one of the following that is not expected by the terminal device:

[0575] · The second number of bits corresponding to each cell in the cell combination is different;

[0576] · The transmission configuration parameters corresponding to each cell in the cell combination are different;

[0577] · The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination is different.

[0578] Alternatively, the network device generates a first DCI based on at least one of the following that is not expected by the terminal device:

[0579] · The second number of bits corresponding to at least one cell in the cell combination is different, and the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0580] · The transmission configuration parameters corresponding to at least one cell in the cell combination are different, and at least one cell in the cell combination is configured with the transmission configuration parameters;

[0581] · The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is different, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0.

[0582] Step 660: Transmit the first DCI.

[0583] The first DCI is used to schedule N data channels, and the first DCI includes a first information indication field.

[0584] The first information indication field is used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination. Among them, the scheduled cell combination is a combination of N cells, the N data channels correspond to N cells, and N is a positive integer. That is, N is equal to 1 and / or N is greater than 1.

[0585] The data channel is a PDSCH or a PUSCH, the N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination, and this cell combination belongs to a set of cells.

[0586] In some embodiments, the first information indication field respectively indicates transmission information for the data channels of the at least one cell.

[0587] In some embodiments, the network device receives data on at least one of the N data channels;

[0588] In this application, the data channel can also be understood as the data transmitted on the data channel. After the network device schedules N data channels through the first DCI, the terminal device transmits data on at least one of the N data channels based on the scheduling of the first DCI, and the network device receives the data sent by the terminal device on at least one of the N data channels.

[0589] In some embodiments, the network device transmits data on at least one of the N data channels;

[0590] After the network device schedules N data channels through the first DCI, it transmits data on at least one of the N data channels, and the network device sends data to the terminal device on at least one of the N data channels.

[0591] In summary, for the method provided in this application, the network device sends the first DCI for scheduling N data channels, and the first DCI includes a first information indication field, which supports the terminal device to be able to obtain the transmission information respectively indicated for the data channels of at least one cell in the scheduled cell combination.

[0592] Figure 7 The block diagram of the indication device of the downlink control information provided by some exemplary embodiments of this application is shown. The device includes at least some of the following receiving module 710 and determining module 730:

[0593] A receiving module 710, configured to receive a first downlink control information (DCI), where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field, and the first information indication field is used to respectively indicate transmission information for data channels of at least one cell in a scheduled cell combination;

[0594] Wherein, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0595] In some embodiments, the apparatus further includes a determining module 730, configured to determine the transmission information respectively indicated by the first information indication field for data channels of the at least one cell based on at least one of the following:

[0596] The number of second bits corresponding to each cell in the cell combination;

[0597] The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to the transmission information;

[0598] The number of first bits of the first information indication field;

[0599] Wherein, the number of second bits is determined based on at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell group;

[0600] The number of bits of the information field is the number of bits of the information field corresponding to the first information indication field.

[0601] In some embodiments, when the number of second bits corresponding to a first cell is zero, the first information indication field does not indicate transmission information for the data channel of the first cell; and / or, when the number of second bits corresponding to the first cell is greater than zero, the first information indication field indicates transmission information for the data channel of the first cell;

[0602] Wherein, the first cell is any cell in the cell combination.

[0603] In some embodiments, the number of second bits corresponding to a first cell is X, the first cell is any cell in the cell combination, and the number of first bits is Y bits;

[0604] The determining module 730 is further configured to, when the code point of the first information indication field is a first code point, determine the transmission information indicated by the first information indication field for the data channel of the first cell based on the interpretation method corresponding to the first code point;

[0605] Among them, the first code point refers to the first 2 of the code points corresponding to the Y bits. X code points.

[0606] In some embodiments, the interpretation method corresponding to the first code point includes: the interpretation method of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell.

[0607] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits;

[0608] The determining module 730 is further configured to ignore the first information indication field when the code point of the first information indication field is a second code point.

[0609] Among them, the second code point refers to the code points other than the first code point among the code points corresponding to the Y bits, and the first code point refers to the first 2 of the code points corresponding to the Y bits in the first information indication field. X code points.

[0610] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits;

[0611] The determining module 730 is further configured to, when the code point of the first information indication field is a second code point, determine the transmission information indicated by the first information indication field for the data channel of the first cell based on the interpretation method of the remainder code point, where the remainder code point is the remainder result of the second code point based on 2. X remainder result;

[0612] Among them, the second code point refers to the code points other than the first code point among the code points corresponding to the Y bits, and the first code point refers to the first 2 of the code points corresponding to the Y bits in the first information indication field. X code points.

[0613] In some embodiments, the interpretation method corresponding to the remainder code point includes: the interpretation method of the information field corresponding to separately scheduling the data channel of the first cell.

[0614] In some embodiments, Y is greater than 2. X .

[0615] In some embodiments, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits;

[0616] The determining module 730 is further configured to determine, based on the interpretation method of the third code point, that the first information indication field is the transmission information indicated by the data channel of the first cell;

[0617] Wherein, the third code point is the code point corresponding to the Y bits.

[0618] In some embodiments, the interpretation method corresponding to the third code point includes: the interpretation method of the information field when scheduling the data channels of each cell in the at least one cell separately.

[0619] In some embodiments, Y is less than or equal to 2 X 。

[0620] In some embodiments, the transmission configuration parameters corresponding to the at least one cell in the cell combination include: the transmission information corresponding to at least two sets of configurations;

[0621] Wherein, the code points corresponding to the transmission information of the at least one cell belonging to the same set of configurations are the same, the code points are the code points of the first information indication field, and the first DCI is used to schedule the transmission information corresponding to the at least one cell belonging to the same set of configurations.

[0622] In some embodiments, the determining module 730 is further configured to determine the first number of bits of the first information indication field based on at least one of the following:

[0623] The second number of bits corresponding to each cell in the cell group;

[0624] The transmission configuration parameters corresponding to each cell in the cell group, where the transmission configuration parameters are used to configure information related to the transmission information;

[0625] The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0626] The bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field;

[0627] Wherein, the cell combination belongs to the cell group, and the second number of bits is determined based on at least one of the following: the determination method of the number of bits of the information field when scheduling the data channels of each cell in the at least one cell separately, and the transmission configuration parameters corresponding to each cell in the cell group.

[0628] In some embodiments, the first number of bits is at least one of the following:

[0629] The maximum value of the second number of bits corresponding to each cell in the cell group;

[0630] The minimum value among the second number of bits corresponding to each cell in the cell group;

[0631] The maximum value among the transmission configuration parameters corresponding to each cell in the cell group;

[0632] The minimum value among the transmission configuration parameters corresponding to each cell in the cell group;

[0633] The maximum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group;

[0634] The minimum value among the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group.

[0635] In some embodiments, the terminal device does not expect at least one of the following:

[0636] The second number of bits corresponding to each cell in the cell group is different;

[0637] The transmission configuration parameters corresponding to each cell in the cell group are different;

[0638] The number of elements included in the transmission configuration parameters corresponding to each cell in the cell group is different.

[0639] In some embodiments, the determining module 730 is further configured to determine the first number of bits based on at least one of the following:

[0640] The second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0641] The transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0642] The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0643] The bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field;

[0644] Wherein, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to each cell when separately scheduling the data channels of at least one cell in the at least one cell, the transmission configuration parameters corresponding to each cell in the cell group.

[0645] In some embodiments, the first number of bits is at least one of the following:

[0646] The maximum value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0647] The minimum value of the second number of bits corresponding to at least one cell in the cell group, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0648] The maximum value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0649] The minimum value of the transmission configuration parameters corresponding to at least one cell in the cell group, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0650] The maximum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0;

[0651] The minimum value of the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0652] In some embodiments, the terminal device does not expect at least one of the following:

[0653] The second number of bits corresponding to at least one cell in the cell group is different, where the second number of bits corresponding to at least one cell in the cell group is greater than 0;

[0654] The transmission configuration parameters corresponding to at least one cell in the cell group are different, where at least one cell in the cell group is configured with the transmission configuration parameters;

[0655] The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is different, where the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell group is greater than 0.

[0656] In some embodiments, the determining module 730 is further configured to determine the first number of bits based on at least one of the following:

[0657] The second number of bits corresponding to each cell in the cell combination;

[0658] The transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to the transmission information;

[0659] The number of elements included in the transmission configuration parameters corresponding to each cell in the cell combination;

[0660] A bit configuration parameter for indicating the first number of bits of the first information indication field;

[0661] Wherein, the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell combination.

[0662] In some embodiments, the determining module 730 is further configured to determine the first number of bits based on at least one of the following:

[0663] The second number of bits corresponding to at least one cell in the cell combination, and the second number of bits corresponding to at least one cell in the cell combination is greater than 0;

[0664] The transmission configuration parameters corresponding to at least one cell in the cell combination, and at least one cell in the cell combination is configured with the transmission configuration parameters;

[0665] The number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination, and the number of elements included in the transmission configuration parameters corresponding to at least one cell in the cell combination is greater than 0;

[0666] A bit configuration parameter for indicating the first number of bits of the first information indication field;

[0667] Wherein, the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell combination.

[0668] In some embodiments, the first information indication field includes at least one of the following:

[0669] Bandwidth Part BWP indication field;

[0670] Open-loop power control parameter indication field;

[0671] Priority indication field.

[0672] In some embodiments, the transmission configuration parameters include at least one of the following:

[0673] Bandwidth Part BWP configuration parameters;

[0674] Open-loop power control set list parameters;

[0675] Whether the first DCI includes a sounding reference signal (SRS) information indication field;

[0676] Transmission configuration parameters for configuring the number of bits of the open-loop power control parameter indication field;

[0677] Priority configuration parameters.

[0678] In summary, the device provided in this application supports receiving a first DCI for scheduling N data channels. The first DCI includes a first information indication field, and the terminal device can obtain the transmission information indicated by the data channels of at least one cell in the scheduled cell combination.

[0679] Figure 8 The block diagram of the indication device for downlink control information provided by some exemplary embodiments of this application is shown. The device includes at least some of the following transmission module 810 and generation module 830:

[0680] The transmission module 810 is configured to transmit a first downlink control information (DCI). The first DCI is used to schedule N data channels. The first DCI includes a first information indication field, and the first information indication field is used to respectively indicate the transmission information for the data channels of at least one cell in the scheduled cell combination;

[0681] Wherein, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer.

[0682] In some embodiments, the device further includes a generation module 830, configured to generate the first DCI. The code points of the first information indication field in the first DCI are determined based on the transmission information respectively indicated for the data channels of the at least one cell.

[0683] In some embodiments, the transmission module 810 is further configured to transmit the transmission configuration parameters corresponding to the at least one cell in the cell combination. The transmission configuration parameters are used to configure the information related to the transmission information.

[0684] In some embodiments, the transmission configuration parameters corresponding to the at least one cell in the cell combination include: the transmission information corresponding to at least two sets of configurations;

[0685] Wherein, the code points corresponding to the transmission information of the at least one cell belonging to the same set of configurations are the same. The code points are the code points of the first information indication field, and the first DCI is used to schedule the transmission information corresponding to the at least one cell belonging to the same set of configurations.

[0686] In some embodiments, the first information indication field includes at least one of the following:

[0687] Bandwidth Part (BWP) indication field;

[0688] Open-loop power control parameter indication field;

[0689] Priority indication field.

[0690] In some embodiments, the transmission configuration parameters include at least one of the following:

[0691] Bandwidth Part (BWP) configuration parameters;

[0692] Open-loop power control set list parameters;

[0693] Whether the first Downlink Control Information (DCI) includes a Sounding Reference Signal (SRS) information indication field;

[0694] Transmission configuration parameters for configuring the number of bits of the open-loop power control parameter indication field;

[0695] Priority configuration parameters.

[0696] In summary, the apparatus provided in this application supports sending a first DCI for scheduling N data channels. The first DCI includes a first information indication field, enabling the terminal device to obtain the transmission information indicated by the data channels of at least one cell in the scheduled cell combination.

[0697] It should be noted that: for the apparatus provided in the above embodiments, only the division of the above functional modules is used for illustration. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0698] Regarding the apparatus in this embodiment, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be elaborated here.

[0699] Figure 9 FIG. shows a schematic structural diagram of a communication device (terminal device or network device) provided in some exemplary embodiments of this application. The communication device 900 includes: a processor 901, a receiver 902, a transmitter 903, a memory 904, and a bus 905.

[0700] The processor 901 includes one or more processing cores. The processor 901 executes various functional applications and information processing by running software programs and modules. In some embodiments, the processor 901 can be used to implement the functions and steps of the above-mentioned determination module 730 and / or generation module 830.

[0701] The receiver 902 and the transmitter 903 can be implemented as a communication component, which can be a communication chip. In some embodiments, the receiver 902 can be used to implement the functions and steps of the receiving module 710 as described above. In some embodiments, the transmitter 903 can be used to implement the functions and steps of the transmitting module 810 as described above.

[0702] The memory 904 is connected to the processor 901 via a bus 905. The memory 904 can be used to store at least one instruction, and the processor 901 is configured to execute the at least one instruction to implement the various steps in the above method embodiments.

[0703] In addition, the memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include, but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random-access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM).

[0704] In some embodiments, the receiver 902 independently receives signals / data, or the processor 901 controls the receiver 902 to receive signals / data, or the processor 901 requests the receiver 902 to receive signals / data, or the processor 901 cooperates with the receiver 902 to receive signals / data.

[0705] In some embodiments, the transmitter 903 independently transmits signals / data, or the processor 901 controls the transmitter 903 to transmit signals / data, or the processor 901 requests the transmitter 903 to transmit signals / data, or the processor 901 cooperates with the transmitter 903 to transmit signals / data.

[0706] In an exemplary embodiment of the present application, a computer-readable storage medium is further provided. At least one program is stored in the computer-readable storage medium, and the at least one program is loaded and executed by the processor to implement the indication method of the downlink control information provided in the above method embodiments.

[0707] In an exemplary embodiment of the present application, a chip is further provided. The chip includes a programmable logic circuit and / or program instructions, and is configured to implement the method for indicating downlink control information provided in each of the above method embodiments when the chip runs on a communication device.

[0708] In an exemplary embodiment of the present application, a computer program product is further provided. When the computer program product runs on a processor of a computer device, the computer device is caused to execute the method for indicating downlink control information described above.

[0709] In an exemplary embodiment of the present application, a computer program is further provided. The computer program includes computer instructions, and when the processor of the computer device executes the computer instructions, the computer device is caused to execute the method for indicating downlink control information described above.

[0710] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented by hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. The computer-readable medium includes computer storage media and communication media, where the communication media includes any medium that facilitates the transfer of a computer program from one place to another. The storage media can be any available medium accessible by a general-purpose or special-purpose computer.

[0711] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An apparatus for indicating downlink control information, characterized in that, the apparatus comprises: a receiving module, configured to receive a first downlink control information DCI, where the first DCI is used to schedule N data channels, the first DCI includes a first information indication field, and the first information indication field is used to respectively indicate transmission information for data channels of at least one cell in a scheduled cell combination; wherein, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, and N is a positive integer, the apparatus further comprises: a determining module, configured to determine the transmission information respectively indicated by the first information indication field for data channels of the at least one cell based on at least one of the following: a second number of bits corresponding to each cell in the cell combination; transmission configuration parameters corresponding to each cell in the cell combination, where the transmission configuration parameters are used to configure information related to the transmission information; a first number of bits of the first information indication field; wherein, the second number of bits is determined based on at least one of the following: a determination method of the number of bits of an information field corresponding to separately scheduling data channels of each cell in the at least one cell, transmission configuration parameters corresponding to each cell in the cell group; the number of bits of the information field is the number of bits of the information field corresponding to the first information indication field.

2. The apparatus according to claim 1, characterized in that, when the second number of bits corresponding to a first cell is zero, the first information indication field does not indicate transmission information for the data channel of the first cell; and / or, when the second number of bits corresponding to the first cell is greater than zero, the first information indication field indicates transmission information for the data channel of the first cell; wherein, the first cell is any cell in the cell combination.

3. The apparatus according to claim 1, characterized in that, the second number of bits corresponding to a first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits; when the code point of the first information indication field is a first code point, the transmission information indicated by the first information indication field for the data channel of the first cell is determined based on an interpretation method corresponding to the first code point; wherein, the first code point refers to the first m code points among the code points corresponding to the Y bits.

4. The apparatus according to claim 1, characterized in that, the second number of bits corresponding to a first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits; when the code point of the first information indication field is a second code point, the first information indication field is ignored; wherein, the second code point refers to the code points other than the first code point among the code points corresponding to the Y bits, and the first code point refers to the first m code points among the code points corresponding to the Y bits in the first information indication field.

5. The apparatus according to claim 3 or 4, characterized in that, Y is greater than m, and m is 2X.

6. The apparatus according to claim 1, characterized in that, The first indication field includes an open-loop power control parameter indication field, and the determination module is further configured to determine the first number of bits based on the second number of bits corresponding to each cell in the cell group; wherein, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell group.

7. The apparatus according to claim 6, wherein, the second number of bits is determined according to the transmission configuration parameters corresponding to each cell in the cell group; wherein, if the first parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0, and the first parameter is used to configure the open-loop power parameter indication field; if the first parameter is configured for the first cell, the second number of bits corresponding to the first cell is 1 or 2; wherein, if the first DCI includes a sounding reference signal SRS resource indication field, the second number of bits corresponding to the first cell is 1; if the first DCI does not include the SRS resource indication field, the second number of bits corresponding to the first cell is 1 or 2, and the value of the second number of bits depends on the value of the second parameter, and the second parameter is used to configure the number of bits of the open-loop power parameter indication field.

8. The apparatus according to claim 6 or 7, wherein, the first number of bits is determined based on the maximum value of the second number of bits corresponding to each cell in the cell group.

9. The apparatus according to claim 1, wherein, the first indication field includes a bandwidth part BWP indication field, and the first number of bits of the first information indication field is determined based on the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group, and the cell combination belongs to the cell group.

10. The apparatus according to claim 9, wherein, the first number of bits is determined based on the maximum value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group.

11. A device for indicating downlink control information, wherein, the device includes: a sending module, configured to send a first downlink control information DCI, the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field, and the first information indication field is used to respectively indicate transmission information for the data channels of at least one cell in the scheduled cell combination; wherein, the scheduled cell combination is a combination of N cells, the N data channels correspond to the N cells, N is a positive integer, and the transmission information respectively indicated by the first information indication field for the data channels of the at least one cell is determined based on at least one of the following: the second number of bits corresponding to each cell in the cell combination; the transmission configuration parameters corresponding to each cell in the cell combination, and the transmission configuration parameters are used to configure information related to the transmission information; the first number of bits of the first information indication field; Wherein, the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell group; The number of bits of the information field is the number of bits of the information field corresponding to the first information indication field.

12. The apparatus according to claim 11, wherein, when the second number of bits corresponding to the first cell is zero, the first information indication field does not indicate transmission information for the data channel of the first cell; and / or, when the second number of bits corresponding to the first cell is greater than zero, the first information indication field indicates transmission information for the data channel of the first cell; wherein, the first cell is any cell in the cell combination.

13. The apparatus according to claim 11, wherein, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits; when the code point of the first information indication field is the first code point, the transmission information indicated by the first information indication field for the data channel of the first cell is determined based on the interpretation method corresponding to the first code point; wherein, the first code point refers to the first m code points among the code points corresponding to the Y bits.

14. The apparatus according to claim 11, wherein, the second number of bits corresponding to the first cell is X, the first cell is any cell in the cell combination, and the first number of bits is Y bits; when the code point of the first information indication field is the second code point, the first information indication field is ignored; wherein, the second code point refers to the code points other than the first code point among the code points corresponding to the Y bits, and the first code point refers to the first m code points among the code points corresponding to the Y bits in the first information indication field.

15. The apparatus according to claim 13 or 14, wherein, Y is greater than m, and m is 2X.

16. The apparatus according to claim 11, wherein, the first indication field includes an open-loop power control parameter indication field, and the determination module is further configured to determine the first number of bits based on the second number of bits corresponding to each cell in the cell group; wherein, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: the determination method of the number of bits of the information field corresponding to separately scheduling the data channels of each cell in the at least one cell, and the transmission configuration parameters corresponding to each cell in the cell group.

17. The apparatus according to claim 16, wherein, the second number of bits is determined according to the transmission configuration parameters corresponding to each cell in the cell group; wherein, if the first parameter is not configured for the first cell, the second number of bits corresponding to the first cell is 0, and the first parameter is used to configure the open-loop power parameter indication field; If a first parameter is configured for a first cell, the second number of bits corresponding to the first cell is 1 or 2; wherein, if a sounding reference signal (SRS) resource indication field is included in the first DCI, the second number of bits corresponding to the first cell is 1; if the SRS resource indication field is not included in the first DCI, the second number of bits corresponding to the first cell is 1 or 2, and the value of the second number of bits depends on the value of a second parameter, and the second parameter is used to configure the number of bits of an open-loop power parameter indication field.

18. The apparatus according to claim 16 or 17, characterized in that the first number of bits is determined based on the maximum value of the second number of bits corresponding to each cell in the cell group.

19. The apparatus according to claim 11, characterized in that the first indication field includes a bandwidth part (BWP) indication field, and the first number of bits of the first information indication field is determined based on the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group, and the cell combination belongs to the cell group.

20. The apparatus according to claim 19, characterized in that the first number of bits is determined based on the maximum value of the number of elements included in the transmission configuration parameters corresponding to each cell in the cell group.

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