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

Downlink control information indication method, device, equipment and storage medium Technical Field The present application relates to the field of communications, and in particular to a method, device, equipment and storage medium for indicating downlink control information. Background Art Related technologies support scheduling 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 (Bandwidth Part, BWP) parameters, open-loop power control parameters, priority parameters, etc., and the transmission configuration parameters are used to determine the transmission information of the data channel, how to indicate the transmission information corresponding to multiple cells through this DCI is a problem that needs to be solved. Summary of the invention The present application provides a method, apparatus, device and storage medium for indicating downlink control information. The technical solution is as follows: According to one aspect of the present application, a method for indicating downlink control information is provided, the method being executed by a terminal device, the method comprising: receiving 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. According to one aspect of the present application, a method for indicating downlink control information is provided, the method being executed by a network device, the method comprising: 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. According to one aspect of the present application, a device for indicating downlink control information is provided, the device comprising: A receiving module, configured to 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. According to one aspect of the present application, a device for indicating downlink control information is provided, the device comprising: A sending module, configured to send a first DCI, where the first DCI is used to schedule N data channels, and the first DCI includes a first information indication field, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. According to one aspect of the present application, a terminal device is provided, which includes: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method for indicating downlink control information as described in the above aspects. According to one aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to load and execute the executable instructions to implement the method for indicating downlink control information as described in the above aspects. According to one aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by the processor to implement the method for indicating downlink control information as described in the above aspect. According to one aspect of the present application, a computer program product is provided, which includes computer instructions, the computer instructions are 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, so that the computer device executes to implement the method for indicating downlink control information as described in the above aspect. According to one aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions, and when the chip is running, it is used to implement the method for indicating downlink control information as described in the above aspect. According to one aspect of the present application, a computer program is provided, wherein the computer program includes computer instructions, and a processor of a computer device executes the computer instructions so that the computer device executes the method for indicating downlink control information as described in the above aspect. The technical solution provided by the embodiments of the present application includes at least the following beneficial effects: The terminal device receives the 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 respectively indicated by the data channel of at least one cell in the scheduled cell combination. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work. FIG1 is a schematic diagram of a communication system provided by some exemplary embodiments of the present application; FIG2 is a schematic diagram showing a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application; FIG3 is a schematic diagram showing a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application; FIG4 is a schematic diagram showing a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application; FIG5 is a schematic diagram showing a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application; FIG6 is a schematic diagram showing a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application; FIG7 shows a structural block diagram of a device for indicating downlink control information provided by some exemplary embodiments of the present application; FIG8 shows a structural block diagram of a device for indicating downlink control information provided by some exemplary embodiments of the present application; FIG. 9 shows a schematic diagram of the structure of a communication device provided by some exemplary embodiments of the present application. DETAILED DESCRIPTION In order to make the purpose, technical scheme and advantages of the present application clearer, the implementation mode of the present application will be further described in detail below in conjunction with the accompanying drawings. The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying 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 implementation modes described in the following exemplary embodiments do not represent all implementation modes 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 attached claims. The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items. 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 "at the time of" or "when" or "in response to determining". First, the related technologies involved in the embodiments of the present application are introduced: Multi-carrier scheduling: In the "Multi-Carrier" work item, the feature of supporting one DCI to schedule multiple physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH) of multiple cells, where the carrier and the cell can be regarded as the same concept. A group of cells that can be scheduled by DCI format 0_X (DCI format 0_X) or DCI format 1_X (DCI format 1_X) forms a cell group (A Set of Cells), and multiple groups of cells that can be scheduled by DCI format 0_X or DCI format 1_X form multiple cell groups (Multiple Set of Cells). Among them, X represents a positive integer other than 1 and 2. It can be understood that a cell group is a unit (or granularity) configured for multi-carrier scheduling (i.e., multi-cell scheduling). A cell group includes one or more cell combinations (Cell Combination). The cell combination is a cell combination formed by cells that can be co-scheduled (Co-Scheduled) in DCI format 0_X or DCI format 1_X. The cell combination is a subset or a full set of the cell group. Exemplarily, the network device configures {cell 1, cell 2, cell 3, cell 4} as the first cell group, and {cell 5, cell 6, cell 7, cell 8} as the second cell group. The cell combination is a subset or a full set of {cell 1, cell 2, cell 3, cell 4}, or the cell combination is a subset or a full set of {cell 5, cell 6, cell 7, cell 8}. For example, in the first cell group, the cell combination that can be scheduled by DCI format 0_X or DCI format 1_X is shown in Table 1 below: Table 1 Cell combination of the first cell group Cell combination index (Index)Co-scheduled cell / cell combination 1Cell 1+cell 2 2Cell 3+cell 4 3Cell 1+cell 2+cell 3 4Cell 2+cell 3+cell 4 5Cell 1+cell 2+cell 3+cell 4 DCI field: In the current discussion on DCI format 0_X or DCI format 1_X for scheduling at least one cell, the DCI field can be divided into the following three types: 1. Type-1 domain: Type-1A field: a single field used to indicate common information for all co-scheduled cells; Type-1B field: a single field used to jointly indicate individual information for each cell in the co-scheduled cells; Type-1C field: a single field used to indicate information of one cell in a co-scheduled cell. 2. Type-2 field: a separate field used to indicate each cell in a co-scheduled cell. 3. Type-3 domain: a domain shared or used solely by each cell in a co-scheduling cell, or a domain used solely by each subgroup, according to explicit configuration. NOTE: A subgroup includes a subset of co-scheduled cells, where a single domain is usually applied to the co-scheduled cells belonging to the same subgroup. 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. The corresponding agreement is described as follows: 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: 1.Type-1 field: ·Type-1A field:A single field indicating common information to all the co-scheduled cells; ·Type-1B field:A single field indicating separate information to each of co-scheduled cells via joint indication; ·Type-1C field:A single field indicating an information to only one of co-scheduled cells. 2.Type-2 field:Separate field for each of the co-scheduled cells. 3.Type-3 field:Common or separate to each of the co-scheduled cells,or separate to each sub-group,dependent on explicit configuration. 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. 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 discussed separately. BWP indication field in the traditional DCI format (DCI format 0_1 / 1_1 / 0_2 / 1_2): In the related art, it is supported to configure up to 4 bandwidth parts (BWP) for UE through user equipment (UE) specific radio resource control (RRC) signaling, namely 4 downlink BWPs and 4 uplink BWPs; in addition, the UE will naturally have an initial downlink BWP (Initial DL BWP) and an initial uplink BWP (Initial UL BWP). In this way, a UE can actually have 5 BWPs configured by high-level signaling in the uplink and downlink respectively, except that the initial downlink BWP and the initial uplink BWP are not UE-dedicated BWPs configured by RRC dedicated signaling. The value of the BWP identity (BWP identity, BWP-Id) is [0, ..., 4], that is, 5 BWP numbers are supported, where BWP-Id = 0 indicates the initial downlink BWP or the initial uplink BWP, and BWP-Id = 1 to 4 indicates 4 UE-dedicated BWPs configured by RRC dedicated signaling. The related technology also supports a BWP switching mechanism based on DCI triggering, that is, in the scheduling DCI (DCI format 0_1 / 1_1 / 0_2 / 1_2), there is a BWP indication field (BWP Indicator), the size of the BWP indication field is 0 bit (Bit) or 1 bit or 2 bits, which is determined by the number of BWPs configured by RRC signaling (except the initial BWP). The specific mechanism is as follows: When the number of BWPs configured by RRC signaling is n BWP,RRC When the number of bits in the BWP indication field is less than or equal to 3 (except the initial BWP), the number of bits in the BWP indication field is in Indicates rounding up, n BWP =n BWP,RRC+1; The mapping relationship between the BWP indication field and the BWP number is shown in Table 2 below. At this time, it supports switching the current BWP to any of the initial BWP and the BWP configured by RRC signaling through DCI scheduling. Table 2 Mapping relationship between BWP indication field and BWP number When the number of BWPs configured by RRC signaling is n BWP,RRC When (except the initial BWP) is greater than 3 (i.e. 4), the number of bits in the BWP indication field is where n BWP =n BWP,RRC ; The mapping relationship between the BWP indication domain 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, but only supports switching the current BWP to any BWP configured by RRC signaling through DCI scheduling. Table 3 Mapping relationship between BWP indication field and BWP number The corresponding agreement is described as follows: Bandwidth part indicator–0,1 or 2bits 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 -n BWP =n BWP,RRC +1if n BWP,RRC ≤3,in which case the bandwidth part indicator is equivalent to the ascending order of the higher layer parameter BWP-Id; -otherwise n BWP =n BWP,RRC,in which case the bandwidth part indicator is defined in Table 7.3.1.1.2-1. Open-loop power control parameter indication field in the traditional DCI format (DCI format 0_1 / 0_2): In the related technology, 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. In specific implementation, the open-loop power control parameter (Open-Loop Power Control Parameter, P0) of the currently scheduled PUSCH can be dynamically adjusted by adding an open-loop power control parameter indication field to the scheduling DCI (DCI format 0_1 / 0_2). Taking the P0 indication field in DCI format 0_1 ​​as an example, the number of bits it contains is determined as follows: Open-Loop Power Control Parameter Set Indication field—0, 1, or 2 bits. If the high-level parameter p0-PUSCH-SetList is not configured, the open-loop power control parameter indication field is 0 bits; If the higher-level parameter p0-PUSCH-SetList is configured, the open-loop power control parameter indication field is 1 bit or 2 bits. - If the DCI format contains a sounding reference signal (SRS) resource indicator field, the open-loop power control parameter indicator field is 1 bit; - If the DCI format does not contain the SRS resource indication field, the open-loop power control parameter indication field is 1 bit or 2 bits, depending on the value of olpc-ParameterSetDCI-0-1. ·0 bit if the higher layer parameter p0-PUSCH-SetList is not configured: 1 or 2 bits otherwise. -1 bit if SRS resource indicator is present in the DCI format 0_1; -1 or 2bits as determined by higher layer parameter olpc-ParameterSetDCI-0-1 if SRS resource indicator is not present in the DCI format 0_1. Exemplarily, the configuration of the open-loop power control parameter indication field is as follows: When SRI is not configured in DCI, the number of bits of the open-loop power control parameter set indication is configured for DCI format 0_1 / 0_2. The open-loop power control parameter indication field is 2 bits only when SRI does not exist 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 TS 38.212

[0017] Section 7.3.1 and TS 38.213

[0013] Section 11). (olpc-ParameterSetDCI-0-1, olpc-ParameterSetDCI-0-2: 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

[0017] ,clause 7.3.1 and TS 38.213

[0013] ,clause 11).) Parameter p0-PUSCH-SetList: An additional p0-PUSCH-Set is configured for each SRS Resource Indicator (SRI). If the p0-PUSCH-Set exists, 1 or 2 bits in the DCI are used to dynamically indicate the P0 value in the existing P0-PUSCH-AlphaSet and the P0 value in the p0-PUSCH-Set. 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

[0017] , clause 7.3.1 and TS 38.213

[0013] ,clause 17). The open-loop power control parameter indication field in DCI format 0_1 / 0_2 is used as follows: 1. If the SRI field does not exist in DCI format 0_1 / 0_2, then: -If p0-PUSCH-Set is configured, the DCI contains the open-loop power control parameter indication field: 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. 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 based on the following value: a first value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. 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 based on the following value: a second value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. - If no p0-PUSCH-Set is configured, the terminal device determines the P0 value based on the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets. 2. If the SRI field exists in the DCI format 0_1 / 0_2 and the DCI contains an open-loop power control parameter indication field: The open-loop power control parameter indication field in DCI format 0_1 / 0_2 is "1", and the terminal device determines the P0 value based on the following value: the first value in P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value. Otherwise, the terminal device determines the P0 value based on the following value: the P0 value corresponding to the p0-PUSCH-AlphaSetId value that is mapped to the SRI field value. Priority indication field in the traditional DCI format (DCI format 0_1 / 1_1 / 0_2 / 1_2): In the related technology, the coexistence of eMBB services and URLLC services in the same UE is supported. In order to solve the problem of intra-UE prioritization, the concept of physical layer priority is introduced for uplink PUSCH transmission and PUCCH transmission. A 1-bit priority indication field can exist in DCI format 0_1 / 1_1 / 0_2 / 1_2 to indicate the priority of PUSCH or PUCCH scheduled by DCI. Taking DCI format 0_1 ​​as an example, the number of bits contained in its priority indication field is as follows: If the higher layer parameter priorityIndicatorDCI-0-1 is not configured, the priority indicator 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].) The parameters priorityIndicatorDCI-1-1 and priorityIndicatorDCI-1-2 are used to configure the presence of the "priority indication field" in DCI format 1_1 / 1_2. If this field is not present, the priority indication field is 0 bits in DCI format 1_1 / 1_2. 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

[0017] , clause 7.3.1 and TS 38.213

[0013] clause 9). (priorityIndicatorDCI-1-1, priorityIndicatorDCI-1-2: 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

[0017] ,clause 7.3.1 and TS 38.213

[0013] clause 9).) 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 (Type-1) fields, that is, a single field is included in the 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: 1. How is the number of bits in the separate BWP indication field, open-loop power control parameter indication field, and priority indication field contained 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 of a specific BWP (BWP-specific), different cells can be configured with different related transmission configuration parameters, so it is necessary to determine how to determine the number of bits in a single field when DCI format 0_X / 1_X is used to schedule PDSCH / PUSCH of multiple cells; 2. After determining the number of bits of the separate BWP indication field, open-loop power control parameter indication field, and priority indication field contained in the DCI format 0_X / 1_X, it is also necessary to determine how the different code points of these fields are interpreted for different cells. Based on the above problems, the present application provides a method for indicating downlink control information, which clarifies how to determine the number of bits in a single field and how to interpret a single field. Fig. 1 shows a schematic diagram of a communication system provided by an exemplary embodiment of the present application. The communication system includes a network device 110 and a terminal device 120. The network device 110 in the present application provides a wireless communication function, and the network device 110 includes but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., Home Evolved Node B, or Home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc., and can also be a next generation Node B (Next Generation Node B) in a fifth generation (5G) mobile communication system. B, gNB) or transmission point (TRP or TP), or, it is one or a group of (including multiple antenna panels) 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 (Distributed Unit, DU), or a base station in a Beyond Fifth Generation (B5G) or a 6th Generation (6G) mobile communication system, or a core network (CN), fronthaul (Fronthaul), backhaul (Backhaul), a radio access network (RAN), a network slice, or a service cell, a primary cell (PCell), a primary secondary cell (PSCell), a special cell (SpCell), a secondary cell (SCell), a neighboring cell, etc. of a terminal device. The terminal device 120 in this application is also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, and user device. The terminal includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (Mobile Internet Device, MID), augmented reality (Augmented Reality, AR) terminals, virtual reality (Virtual Reality, VR) terminals and mixed reality (Mixed Reality, MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control (Industrial Control), wireless terminals in self-driving (Self Driving), wireless terminals in remote medical care (Remote Medical), wireless terminals in smart grid (Smart Grid), wireless terminals in transportation safety (Transportation Safety), wireless terminals in smart cities (Smart City), wireless terminals in smart homes (Smart Home), wireless terminals in remote medical surgery (Remote Medical Surgery), cellular phones, cordless phones, Session Initiation Protocol (Session Initiation Protocol, SIP) phones, Wireless Local Loop (Wireless Local Loop (WLL) stations, personal digital assistants (PDA), TV set top boxes (STB), customer premises equipment (CPE), etc. The network device 110 and the terminal device 120 communicate with each other via some air interface technology, such as a Uu interface. 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. Uplink communication refers to sending signals to the network device 110; downlink communication refers to sending signals to the terminal device 120. 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, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, terrestrial communication network (Terrestrial Networks, NTN) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, can also be applied to the subsequent evolution system of 5G NR system, and can also be applied to B5G, 6G and subsequent evolution systems. In some embodiments of the present application, "NR" may also be referred to as 5G NR system or 5G system. Among them, the 5G mobile communication system may include non-standalone networking (Non-Standalone, NSA) and / or standalone networking (Standalone, SA). The technical solutions provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device to device (D2D) network, machine to machine (M2M) network, Internet of Things (IoT) network or other networks. Among them, IoT network can include vehicle networking, for example. Among them, the communication mode in the vehicle networking system is collectively referred to as vehicle to other devices (Vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc. The communication system provided in this embodiment can be applied to but is not limited to at least one of the following communication scenarios: an uplink communication scenario, a downlink communication scenario, and a sidelink communication scenario. The "cell group" in this embodiment refers to the cell group where the scheduled cell combination is located, which can also be called the first cell group; the "cell combination" in this embodiment refers to the scheduled cell combination, which can also be called the first cell group. FIG2 shows a schematic flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application. The method is schematically illustrated by taking the method executed by the terminal device 120 shown in FIG1 as an example. The method includes at least some of the following steps: 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. The first information indication field is used to indicate transmission information of at least one data channel among the scheduled N data channels, or the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination, respectively. 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. The data channel includes PDSCH or PUSCH, N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination (Cell Combination), and the cell combination belongs to a cell group (Set of Cells). To summarize, the method provided in the present application is that the terminal device receives the 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 respectively indicated for the data channel of at least one cell in the scheduled cell combination. FIG3 shows a schematic flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application. The method is schematically illustrated by taking the method executed by the terminal device 120 shown in FIG1 as an example. The method includes at least some of the following steps: Step 310: 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; The first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination, or to indicate transmission information for N scheduled data channels. The scheduled cell combination is a combination of N cells, 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. The data channel is PDSCH or PUSCH, N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination, and the cell combination belongs to a cell group. Step 330: Determine that the first information indication field is transmission information respectively indicated by a data channel of at least one cell in the scheduled cell combination. The first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination. The transmission information includes at least one of BWP-related information (e.g., BWP information where the data channel is located), open-loop power control parameter-related information (e.g., open-loop power control parameter information used for data channel transmission), and priority-related information (e.g., priority information corresponding to the data channel). The priority-related information includes the priority of the data channel scheduled by the first DCI. In some embodiments, the first information indication field is transmission information respectively indicated by the data channel of at least one cell in the scheduled cell combination, which is determined based on the first bit number of the first information indication field. The terminal device is supported to determine the transmission information respectively indicated by the data channel of at least one cell in the scheduled cell combination based on the first bit number, and the transmission information can be respectively indicated for the data channel of at least one cell through fewer DCI resources. In some embodiments, the first number of bits is determined based on at least one of the following: The second bit number corresponding to each cell in the cell group; The transmission configuration parameters corresponding to each cell in the cell group are used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameters corresponding to each cell in the cell group; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. Alternatively, the first number of bits is determined based on at least one of the following: A second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; It should be understood that if the transmission configuration parameter is a BWP configuration parameter, the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell group is the number of BWPs, then the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell group (excluding the initial BWP) is greater than 0, or, the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell group (including the initial BWP) is greater than 1. A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. Alternatively, the first number of bits is determined based on at least one of the following: The second bit number corresponding to each cell in the cell combination; 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; The number of elements contained in the transmission configuration parameters corresponding to each cell in the cell combination; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. Alternatively, the first number of bits is determined based on at least one of the following: The second bit number corresponding to at least one cell in the cell combination, the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; It should be understood that if the transmission configuration parameter is a BWP configuration parameter, the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell combination is the number of BWPs, then the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell combination (excluding the initial BWP) is greater than 0, or, the number of elements contained in the transmission configuration parameter corresponding to at least one cell in the cell combination (including the initial BWP) is greater than 1. A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. Among them, the cell combination belongs to the cell group. 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 BWP, and the data channel related to 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 number of bits used to configure the open-loop power control parameter indication field and the number of bits used to configure the open-loop power control parameter indication field. If the transmission configuration parameter is a priority configuration parameter, it includes configuration parameters related to the priority indication field. The "method for determining the number of bits" in this application refers to a method for determining the number of bits, or a step for determining the number of bits, including a method for determining the number of bits in a table form, and / or a method for determining the number of bits in a text form. In some embodiments, the second number of bits is determined according to at least one of the following: a method for determining the number of bits of the information field corresponding to the first information indication field in the second DCI, a transmission configuration parameter 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; Alternatively, the second number of bits is determined by: a method for determining the number of bits of the corresponding information field when the data channel of each cell in at least one cell is separately scheduled, the information field is an 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; Alternatively, the second number of bits is determined according to the following method: The case where the first information indication field includes the BWP indication field When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC When (except the initial BWP) is less than or equal to 3, the second bit number corresponding to the first cell is where n BWP =n BWP,RRC+1. The first cell is any cell in the cell combination. When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC (except the initial BWP) is greater than 3 (i.e. 4), the second bit number corresponding to the first cell is where n BWP =n BWP,RRC . The case where the first information indication field includes an open-loop power control parameter indication field If the first parameter is not configured for the first cell, the second bit number corresponding to the first cell is 0; The first parameter is used to configure the open-loop power control parameter indication field, for example, the first parameter is p0-PUSCH-SetList. If the first parameter is configured for the first cell, the second bit number corresponding to the first cell is 1 or 2; If the first DCI includes an SRS resource indication field, the second bit number corresponding to the first cell is 1; 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, depending on the value of the second parameter, and the second parameter is used to configure the number of bits of the 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. The case where the first information indication field includes a priority indication field The priority includes the priority of the data channel scheduled by the first DCI. If the third parameter is not configured for the first cell, the second bit number corresponding to the first cell is 0; 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. If the third parameter is configured for the first cell, the second bit number corresponding to the first cell is 1. In some embodiments, the first bit number is at least one or any one of the following: The maximum value of the second bit number corresponding to each cell in the cell group; The minimum value of the second bit number corresponding to each cell in the cell group; The average value of the second bit number corresponding to each cell in the cell group; The median value of the second bit number corresponding to each cell in the cell group; The maximum value of the transmission configuration parameters corresponding to each cell in the cell group; The minimum value of the transmission configuration parameter corresponding to each cell in the cell group; The average value of the transmission configuration parameters corresponding to each cell in the cell group; The median value of the transmission configuration parameter corresponding to each cell in the cell group; The maximum number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The elements included in the transmission configuration parameter refer to the configuration content in the transmission configuration parameter. If the transmission configuration parameter is a BWP configuration parameter, the number of elements refers to the number of BWPs, and further, may refer to the number of BWPs other than the initial BWP. The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The average value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The median value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group. Alternatively, the first bit number is at least one or any one of the following: a maximum value of the second bit numbers corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a minimum value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; an average value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a median value of a second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a maximum value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a minimum value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; an average value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a median value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; The maximum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; an average value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; A median value of the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell group is greater than zero. Alternatively, the first bit number is at least one or any one of the following: The maximum value of the second bit number corresponding to each cell in the cell combination; The minimum value of the second bit number corresponding to each cell in the cell combination; The average value of the second bit number corresponding to each cell in the cell combination; The median value of the second bit number corresponding to each cell in the cell combination; The maximum value of the transmission configuration parameters corresponding to each cell in the cell combination; The minimum value of the transmission configuration parameter corresponding to each cell in the cell combination; The average value of the transmission configuration parameters corresponding to each cell in the cell combination; The median value of the transmission configuration parameter corresponding to each cell in the cell combination; The maximum number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The average value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The median value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination. Alternatively, the first bit number is at least one or any one of the following: a maximum value of the second bit numbers corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; The minimum value of the second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; an average value of the second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; a median value of a second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; a maximum value of a transmission configuration parameter 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 parameter; a minimum value of a transmission configuration parameter 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 parameter; an average value of a transmission configuration parameter 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 parameter; a median value of a transmission configuration parameter 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 parameter; The maximum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; an average value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; A median value of the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell combination is greater than zero. In some embodiments, the terminal device does not expect at least one of the following: The number of second bits corresponding to each cell in the cell group is different; Each cell in the cell group has different corresponding transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell group contain a different number of elements. Alternatively, the terminal device does not expect at least one of the following: The second bit number corresponding to at least one cell in the cell group is different, and the second bit number corresponding to at least one cell in the cell group is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell group is different, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than zero. Alternatively, the terminal device does not expect at least one of the following: The number of second bits corresponding to each cell in the cell combination is different; Each cell in the cell combination has different corresponding transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell combination contain different numbers of elements. Alternatively, the terminal device does not expect at least one of the following: The second bit number corresponding to at least one cell in the cell combination is different, and the second bit number corresponding to at least one cell in the cell combination is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell combination is different, and at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than zero. In some embodiments, the terminal device expects at least one of the following: The number of second bits corresponding to each cell in the cell group is the same; The transmission configuration parameters corresponding to each cell in the cell group are the same; The transmission configuration parameters corresponding to each cell in the cell group contain the same number of elements. Alternatively, the terminal device expects at least one of the following: The second bit number corresponding to at least one cell in the cell group is the same, and the second bit number corresponding to at least one cell in the cell group is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell group is the same, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is the same, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than zero. Alternatively, the terminal device expects at least one of the following: The number of second bits corresponding to each cell in the cell combination is the same; The transmission configuration parameters corresponding to each cell in the cell combination are the same; The transmission configuration parameters corresponding to each cell in the cell combination contain the same number of elements. Alternatively, the terminal device expects at least one of the following: The second bit number corresponding to at least one cell in the cell combination is the same, and the second bit number corresponding to at least one cell in the cell combination is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell combination is the same, and at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is the same, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than zero. In some embodiments, the first information indication field is transmission information respectively indicated by a data channel of at least one cell in the scheduled cell combination, and is determined based on at least one of the following: The second bit number corresponding to each cell in the cell combination; 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; ·The first bit number of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the number of bits of the information field corresponding to the first information indication field in the second DCI, and a transmission configuration parameter corresponding to each cell in the cell group. The second DCI is used to schedule one data channel; Alternatively, the second number of bits is determined in the following manner: a method for determining the corresponding number of information domain bits when a data channel of each cell in at least one cell is scheduled individually. In some embodiments, when the second bit number corresponding to the first cell is zero, the first information indication field is not data channel indication transmission information of the first cell; and / or, when the second bit number corresponding to the first cell is greater than zero, the first information indication field is data channel indication transmission information of the first cell; The first cell is any cell in the cell combination. In some embodiments, the case where the second number of bits is zero is equivalent to at least one of the following cases: 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; When the first information indication field is used to indicate configuration information of an open-loop power control parameter, the first parameter corresponding to the first cell is not configured, wherein the first parameter is used to configure the open-loop power control parameter indication field, for example, the first parameter is p0-PUSCH-SetList; When the first information indication field is used to indicate configuration information of the priority, a third parameter corresponding to the first cell is not configured, wherein the third parameter is used to configure the priority indication field, for example, the third parameter is priorityIndicatorDCI-0-X. In some embodiments, the first information indication field does not indicate transmission information for the data channel of the first cell, which can be understood as 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. Similarly, the first information indication field indicates transmission information for the data channel of the first cell, which can be understood as 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. 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; In the case where the code point of the first information indication field is the first code point, the first information indication field is the transmission information indicated by the data channel of the first cell, which is determined based on the interpretation method corresponding to the first code point; or, the first information indication field is the transmission information indicated by the data channel of the first cell, which is determined based on the interpretation method corresponding to the first code point and the transmission configuration parameter corresponding to each cell in the cell combination; 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 the Y bits in the first information indication field. In some embodiments, m is 2 X , or less than 2 X An integer greater than 2 X However, this does not mean that m is limited. 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, the mapping relationship between code points and transmission information is provided in the form of a table; or the mapping relationship between code points and transmission information is provided in the form of a text description. In some embodiments, the interpretation method corresponding to the first code point includes: an interpretation method of an information field corresponding to the first information indication field in the second DCI, 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; Alternatively, the interpretation method corresponding to the first code point includes: a method for determining the corresponding number of information domain bits when the data channel of each cell in at least one cell is separately scheduled; or a method for determining the corresponding number of information domain bits when the data channel of the first cell is separately scheduled. Alternatively, the first code point can be interpreted as follows: The case where the first information indication field includes the BWP indication field When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC When (except the initial BWP) is less than or equal to 3, the second bit number corresponding to the first cell is where n BWP =n BWP,RRC +1. For the mapping relationship between the BWP indication field and the BWP number, refer to Table 2. When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC (except the initial BWP) is greater than 3 (i.e. 4), the second bit number corresponding to the first cell is where n BWP =n BWP,RRC For the mapping relationship between the BWP indication domain and the BWP number, refer to Table 3. The case where the first information indication field includes an open-loop power control parameter indication field When the SRI field does not exist in the first DCI: If the 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: i) When the first information field is "0" or "00", the terminal device determines the P0 value according to the following parameters: the first P0-PUSCH-AlphaSet in p0-AlphaSets (a first P0-PUSCH-AlphaSet in p0-AlphaSets). ii) When the first information field is "1" or "01", the terminal device determines the P0 value according to the following parameters: a first value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. iii) When the first information field is "10", the terminal device determines the P0 value according to the following parameters: a second value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. If the first parameter is not configured, the terminal device determines the P0 value based on the following parameters: a first P0-PUSCH-AlphaSet in p0-AlphaSets. When the first DCI has an SRI domain: i) When the first information field is "1", the terminal device determines the P0 value according to the following parameters: the first value in P0-PUSCH-Set corresponding to the p0-PUSCH-SetId corresponding to the SRI field in P0-PUSCH-Set (a first value in P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value). ii) Otherwise, the terminal device determines the P0 value based on the following parameters: the P0 value corresponding to the p0-PUSCH-AlphaSetId corresponding to the SRI field (p0-PUSCH-AlphaSetId value that is mapped to the SRI field value). The case where the first information indication field includes a priority indication field If the 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 details, please refer to the relevant technology [5, TS 38.213]. 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; 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; The second code point refers to a code point 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. 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; In the case where 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, which is determined based on the interpretation 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, which is determined based on the interpretation method of the remainder code point and the transmission configuration parameters corresponding to each cell in the cell combination, and the remainder code point is the second code point based on 2 X The remainder result of ; The second code point refers to a code point 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. In some embodiments, the interpretation method corresponding to the remainder code point includes: an interpretation method of an information field corresponding to the first information indication field in the second DCI, the second DCI being used to schedule one data channel; Alternatively, a method for determining the corresponding number of information domain bits when a data channel of each cell in at least one cell is scheduled individually, or a method for determining the corresponding number of information domain bits when a data channel of a first cell is scheduled individually. In some embodiments, Y is greater than 2 X . 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; The first information indication field is transmission information indicated by the data channel of the first cell, which is determined based on the interpretation method of the third code point; The third code point is the code point corresponding to the Y bit in the first information indication field. In some embodiments, the interpretation method corresponding to the third code point includes: an interpretation method of an information field corresponding to the first information indication field in the second DCI, the second DCI being used to schedule one data channel; Alternatively, a method for determining the corresponding number of information domain bits when a data channel of each cell in at least one cell is scheduled individually, or a method for determining the corresponding number of information domain bits when a data channel of a first cell is scheduled individually. In some embodiments, Y is less than or equal to 2 X . 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; The code point corresponding to the transmission information of at least one cell belonging to the same set of configurations is the same, and the code point is the code point of the first information indication field. The first DCI is used to schedule the transmission information corresponding to at least one cell belonging to the same set of configurations. In some embodiments, the first information indication field includes at least one of the following fields: BWP indication field; ·Open-loop power control parameter indication domain; ·Priority indication field. In some embodiments, the transmission configuration parameter includes at least one of the following: BWP configuration parameters; ·Open-loop power control set list parameters; The first DCI includes an SRS resource indication field; The first DCI does not include an SRS resource indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameters. In summary, the method provided by the present application is that the terminal device receives the 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 respectively indicated for the data channel of at least one cell in the scheduled cell combination. When the first DCI schedules N data channels, the terminal device is supported to interpret the transmission information of each scheduled data channel, or the transmission information of the data channel of each cell in the scheduled cell combination. FIG4 shows a schematic flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application. The method is schematically illustrated by taking the method executed by the terminal device 120 shown in FIG1 as an example. The method includes at least some of the following steps: 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; The first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination. The scheduled cell combination is a combination of N cells, and the N data channels correspond to N cells, where N is a positive integer. That is, N is equal to 1 and / or N is greater than 1. The data channel is PDSCH or PUSCH, N PDSCHs or PUSCHs correspond to N cells, N cells belong to a cell combination, the cell combination belongs to a cell group, the cell group includes M cells, M is greater than or equal to N, and M is a positive integer. Step 430: Determine the first bit number of the first information indication field. The terminal device determines the first number of bits of the first information indication field based on at least one of the following methods: Mode (1): the second bit number corresponding to each cell in the cell group / cell combination; The following description is made by taking the second bit number corresponding to each cell in the cell group as an example. If the first bit number is determined by the second bit number corresponding to each cell in the cell group, the relevant content of determining the first bit number by the second bit number corresponding to each cell in the cell group can be referred to. According to the determination method of the number of information field bits corresponding to the first information indication field in the traditional DCI format, the second number of bits corresponding to each cell in the cell group is determined. 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. Alternatively, when the data channel of each cell is scheduled separately according to one DCI, the method for determining the number of bits of the DCI information field is determined according to the transmission information of each cell, and the second number of bits corresponding to each cell in the cell group is determined. Alternatively, the second bit number corresponding to each cell in the cell group is determined in the following manner: The case where the first information indication field includes the BWP indication field When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC When (except the initial BWP) is less than or equal to 3, the second bit number corresponding to the first cell is where n BWP =n BWP,RRC +1. When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC (except the initial BWP) is greater than 3 (i.e. 4), the second bit number corresponding to the first cell is where n BWP =n BWP,RRC . The case where the first information indication field includes an open-loop power control parameter indication field If the first parameter is not configured for the first cell, the second bit number corresponding to the first cell is 0; The first parameter is used to configure the open-loop power control parameter indication field, for example, the first parameter is p0-PUSCH-SetList. If the first parameter is configured for the first cell, the second bit number corresponding to the first cell is 1 or 2; If the first DCI includes an SRS resource indication field, the second bit number 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, depending on the value of the second parameter, which is used to configure the number of bits of the open-loop power control parameter indication field. For example, the second parameter is olpc-ParameterSetDCI-0-X. The case where the first information indication field includes a priority indication field If the third parameter is not configured for the first cell, the second bit number corresponding to the first cell is 0; The third parameter is used to configure the priority indication domain, for example, the third parameter is priorityIndicatorDCI-0-X. If the third parameter is configured for the first cell, the second bit number corresponding to the first cell is 1. In some implementations, if the format of the first DCI is DCI format 0_X, then the method for determining the number of information field bits corresponding to DCI format 0_1 / 0_2 may be referred to; if the format of the first DCI is DCI format 1_X, then the method for determining the number of information field bits corresponding to DCI format 1_1 / 1_2 may be referred to. For example, based on the maximum value or the minimum value of the second bit numbers corresponding to all cells in the cell group, the first bit number of the first information indication field in the first DCI is determined. When the first bit number of the first information indication field in the first DCI is determined based on the maximum value of the second bit numbers corresponding to all cells in the cell group, the indication of the transmission information is very flexible, but additional design is required for the corresponding interpretation method when the second bit number corresponding to a cell in the cell group is less than the first bit number of the first information indication field. When the first number of bits of the first information indication field in the first DCI is determined 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 transmitted information is lacking. Mode (2): transmission configuration parameters corresponding to each cell in the cell group / cell combination; The following description is made by taking the transmission configuration parameters corresponding to each cell in the cell group as an example. If the first number of bits is determined by the transmission configuration parameters corresponding to each cell in the cell group, reference may be made to the relevant content of determining the first number of bits by using the transmission configuration parameters corresponding to each cell in the cell group. The transmission configuration parameters include at least one of the following: BWP configuration parameters; Such as the number of configured uplink or downlink BWPs (excluding the initial BWP). ·Open-loop power control set list parameters; Such as p0-PUSCH-SetList. Whether there is an SRS resource indication field in DCI format 0_X; · Transmission configuration parameter used to configure the number of bits in the open-loop power control parameter indication field of each cell in DCI format 0_X; Such as olpc-ParameterSetDCI-0-X. Priority configuration parameters. For example, it is used to configure the transmission configuration parameters of each cell to determine whether there is a priority indication field in DCI format 0_X / 1_X, such as priorityIndicatorDCI-0-X and priorityIndicatorDCI-1-X. For example, based on the maximum value or the minimum value of the transmission configuration parameters 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. 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, such as the first parameter is p0-PUSCH-SetList, and the first information indication field does not include the SRS resource indication field. The number of bits of the open-loop power control parameter indication field is configured by configuring the second parameter, such as 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, 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, the first number of bits is 2, and if the first number of bits is determined according to the minimum value, the first number of bits is 1. Taking the case where the first information indication field includes a priority indication field and the format of the first DCI is DCI format 1_X as an example, the first DCI configures a 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 of the transmission configuration parameters corresponding to all cells in the cell group is 1, and the first bit number is 1. As long as at least one cell in the cell group is not configured with the third parameter, the minimum value of the transmission configuration parameters corresponding to all cells in the cell group is 0, and the first bit number is 0. When the first number of bits of the first information indication field in the first DCI is determined based on the maximum or minimum value of the transmission configuration parameters corresponding to each cell in the cell group, the corresponding advantages and disadvantages can be referred to in "(1) The second number of bits corresponding to each cell in the cell group" and will not be repeated here. Mode (3): the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group / cell combination; The following description is made by taking the number of elements included in the transmission configuration parameter corresponding to each cell in the cell group as an example. If the first number of bits is determined by the number of elements included in the transmission configuration parameter corresponding to each cell in the cell combination, reference may be made to the relevant content of determining the first number of bits by the number of elements included in the transmission configuration parameter corresponding to each cell in the cell group. For example, based on the maximum value or minimum value of the number of elements contained in the transmission configuration parameters 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. Taking the first information indication field including the 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 of the number of BWPs corresponding to each cell in the cell group (except the initial BWP) is 4, the first bit number is 2. If the minimum value of the number of BWPs corresponding to each cell in the cell group (except the initial BWP) is 1, the first bit number is 1. When the first number of bits of the first information indication field in the first DCI is determined based on the maximum or minimum value of the number of elements contained in the transmission configuration parameters corresponding to each cell in the cell group, the corresponding advantages and disadvantages can be referred to in "(1) The second number of bits corresponding to each cell in the cell group" and will not be repeated here. Method (4): bit configuration parameters; The bit configuration parameter is used to configure the first number of bits of the first information indication field. Mode (5): The terminal device does not expect at least one of the following: The number of second bits corresponding to each cell in the cell group is different; Each cell in the cell group has different corresponding transmission configuration parameters; The number of elements contained in the transmission configuration parameters corresponding to each cell in the cell group is different; The number of second bits corresponding to each cell in the cell combination is different; Each cell in the cell combination has different corresponding transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell combination contain different numbers of elements. That is to say, the number of second bits corresponding to each cell in the cell group (group) is the same, and / or the transmission configuration parameters corresponding to each cell in the cell group (group) are the same, and / or the number of elements contained in the transmission configuration parameters corresponding to each cell in the cell group (group) is the same. Based on the method of determining the first bit number in method (5), the problem of indication or interpretation caused by different second bit numbers corresponding to different cells in a cell group / cell combination is avoided through scheduling restrictions. Next, an example is given to illustrate the method of determining the first bit number of the first information indication field: The case where the first information indication field includes the BWP indication field Exemplarily, a cell group includes three cells: cell 1, cell 2, and cell 3, where the BWP configuration of each cell is as follows (the following BWPs are all downlink BWPs or all uplink BWPs): Cell 1: In addition to the initial BWP, the network device configures a UE-specific BWP (UE Specific BWP) through high-level parameters, and the corresponding BWP number is 1, that is, BWP ID = 1. According to the method for determining the second bit number described above, the second bit number corresponding to cell 1 is calculated to be log 2 (1+1)=1 bit. Cell 2: In addition to the initial BWP, the network device configures three UE-specific BWPs through high-level parameters. The corresponding BWP numbers are 1, 2, and 3, that is, BWP ID = 1 / 2 / 3. According to the method for determining the second bit number described above, the second bit number corresponding to cell 2 is calculated to be log 2 (1+3)=2 bits. Cell 3: In addition to the initial BWP, the network device configures 4 UE-specific BWPs through high-level parameters. The corresponding BWP numbers are 1, 2, 3, and 4, that is, BWP ID = 1 / 2 / 3 / 4. According to the method for determining the second bit number described above, the second bit number corresponding to cell 3 is calculated to be log 2 (4) = 2 bits. Taking the method (1) for determining the first bit number as an example, if the first bit number is determined based on the maximum value of the second bit numbers corresponding to all cells in the cell group, the first bit number = max{1, 2, 2} = 2 bits. If the first bit number is determined based on the minimum value of the second bit numbers corresponding to all cells in the cell group, the first bit number = min{1, 2, 2} = 1 bit. Taking the method (2) for determining the first number of bits as an example, assuming that the BWP configuration parameters of cells 1, 2, and 3 are, for example, the number of BWPs configured by UE-specific configuration signaling, the maximum value of the BWP configuration parameters in cells 1, 2, and 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 parameter corresponding to all cells in the cell group, then the first number of bits = log 2 (1+1)=1 bit. The content of method (3) can refer to method (2) and will not be repeated here. Taking determining 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. Taking the method (5) for determining the first bit number as an example, the terminal device does not expect that the second bit numbers corresponding to cell 1, cell 2 and cell 3 are different; or the terminal device does not expect that the BWP configuration parameters corresponding to cell 1, cell 2 and cell 3 are different, such as the BWP numbers (except the initial BWP) configured by the UE specific BWP configuration signaling are different; or the terminal device does not expect that the number of elements contained in the BWP configuration parameters corresponding to cell 1, cell 2 and cell 3 are different. In this way, no matter which cell is considered, the first bit number is the same, and the terminal device can determine the first bit number based on any cell in the cell group. The case where the first information indication field includes an open-loop power control parameter indication field For example, a cell group includes three cells: cell 1, cell 2 and cell 3. Assume that the first DCI does not contain SRS resource indication fields corresponding to cell 1, cell 2 and cell 3. The open-loop power control parameter configuration of each cell is as follows: Cell 1: The open-loop power control set list parameter, such as p0-PUSCH-SetList, is configured; the corresponding olpc-ParameterSetDCI-0-X is 1. According to the method for determining the second bit number described above, since the value of olpc-ParameterSetDCI-0-X is 1, the second bit number corresponding to cell 1 is 1 bit. Cell 2: The open-loop power control set list parameter, such as p0-PUSCH-SetList, is configured; the corresponding olpc-ParameterSetDCI-0-X is 2. According to the method for determining the second bit number described above, since the value of olpc-ParameterSetDCI-0-X is 2, the second bit number corresponding to cell 2 is 2 bits. Cell 3: No open-loop power control set list parameter is configured. According to the method for determining the second bit number described above, the second bit number corresponding to cell 3 is 0 bit. Taking the method (1) for determining the first number of bits as an example, if the first number of bits is determined based on the maximum value of the open-loop power control set list parameters corresponding to all cells in the cell group, the first number of bits = max{1, 2, 0} = 2 bits. If the first number of bits is determined based on the minimum value of the open-loop power control set list parameters corresponding to all cells in the cell group, the first number of bits = min{1, 2, 0} = 0 bits. That is, when determining the first number of bits, the open-loop power control set list parameters corresponding to all cells in the cell group are considered. Alternatively, only the cells in the cell group whose second bit number is greater than 0 are considered according to the method for determining the second bit number as described above, i.e., cell 1 and cell 2. Then the first bit number = max{1, 2} = 2 bits, or the first bit number = min{1, 2} = 1 bit. That is to say, when determining the first bit number, only the open-loop power control set list parameters corresponding to the cells in the cell group whose corresponding second bit number is greater than 0 are considered, or only the open-loop power control set list parameters corresponding to the cells in the cell group that are configured with the first parameter are considered, wherein the first parameter is used to configure the open-loop power control parameter indication field, for example, the first parameter is p0-PUSCH-SetList. Taking the method (2) for determining the first number of bits as an example, assuming that there are no SRS resource indication fields corresponding to cell 1, cell 2, and cell 3 respectively in the first DCI, then the second number of bits depends on whether the open-loop power control set list parameter configuration is configured and the value of olpc-ParameterSetDCI-0-X. Assume that cell 1 and cell 2 are configured with open-loop power control set list parameters, cell 3 is not configured with 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 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 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. 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. Alternatively, the first number of bits is determined according to the minimum value of olpc-ParameterSetDCI-0-X. When the open-loop power control set list parameters corresponding to all cells in the cell group are considered, the minimum value of olpc-ParameterSetDCI-0-X is 0, and the first number of bits is 0 bits; when only the open-loop power control set list parameters corresponding to the cells in the cell group whose corresponding second bit number is greater than 0 are considered, the minimum value of olpc-ParameterSetDCI-0-X is 1, and the first number of bits is 1 bit. Taking the method (5) for determining the first bit number as an example, if considering cell 3 which is not configured with open-loop power control set list parameters, the terminal device does not expect the second bit numbers corresponding to cells 1, 2 and 3 to be different; or, the terminal device does not expect the open-loop power control-related configuration parameters corresponding to cells 1, 2 and 3 to be different. For example, cells 1, 2 and 3 simultaneously satisfy at least one of the following: the open-loop power control set list parameters are configured, the SRS resource indication field corresponding to the cell exists in the first DCI, the SRS resource indication field corresponding to the cell does not exist in the first DCI, and the corresponding olpc-ParameterSetDCI-0-X values ​​are the same. If cell 3 for which open-loop power control set list parameters are not configured is not considered, the terminal device does not expect the second bit numbers corresponding to cell 1 and cell 2 to be different; or, the terminal device does not expect the open-loop power control-related configuration parameters 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: open-loop power control set list parameters are configured, the SRS resource indication field corresponding to the cell exists in the first DCI, the SRS resource indication field corresponding to the cell does not exist in the first DCI, and the corresponding olpc-ParameterSetDCI-0-X values ​​are the same. In this way, no matter 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 cell in the cell group. The case where the first information indication field includes a priority indication field Exemplarily, taking the case where the cell group includes three cells: cell 1, cell 2 and cell 3, the terminal does not expect that the priority configuration parameters corresponding to cell 1, cell 2 and cell 3 are 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, if the first DCI is DCI format 0_X, then all PUSCHs scheduled by the first DCI have the same priority, which is the value indicated by the priority indication field in DCI format 0_X, and the first bit number is 1 bit. If none of them are configured, the first bit number is 0 bit. In summary, the method provided by the present application is that the terminal device receives the 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. In addition, multiple ways of determining the first number of bits are provided, which improves the flexibility and effectiveness of the use of the first information indication field. For example, when the first number of bits is determined based on the maximum value, the indication of the transmission information is very flexible; when the first number of bits is determined based on the minimum value, the DCI overhead is small; when the first number of bits is determined based on scheduling restrictions that are not expected by the terminal, problems in indication or interpretation caused by different transmission configuration parameters corresponding to different cells in the cell group / cell combination are avoided, thereby reducing the complexity of the first DCI interpretation. FIG5 is a flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application. The method is schematically illustrated by taking the method executed by the terminal device 120 shown in FIG1 as an example. The method includes at least some of the following steps: 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; The first information indication field is used to indicate transmission information of at least one data channel among the N scheduled data channels, or the first information indication field is used to indicate transmission information of a data channel of at least one cell among the N cells in the scheduled cell combination, wherein the N cells corresponding to the N data channels belong to the cell combination, and N is a positive integer. The data channel is PDSCH or PUSCH, N PDSCHs or PUSCHs correspond to N cells, N cells belong to a cell combination, the cell combination belongs to a cell group, the cell group includes M cells, M is greater than or equal to N, and M is a positive integer. Step 530: Determine that the first information indication field is transmission information indicated by data channels of N cells respectively. The terminal device determines that the first information indication field is transmission information respectively indicated by a data channel of at least one cell based on at least one of the following: The second bit number corresponding to each cell in the cell combination; 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; ·The first bit number of the first information indication field; The second number of bits is determined based on at least one of the following: a method for determining the number of bits of the information field corresponding to the first information indication field in the second DCI, and a transmission configuration parameter corresponding to each cell in the cell group, and the second DCI is used to schedule one data channel. For details about the method for determining the second bit number, please refer to the content in step 430, which will not be described in detail here. Assume that the second bit number corresponding to the first cell is X, and the first bit number of the first information indication field is Y. The first cell is any cell in the cell combination, or a cell corresponding to one of the N data channels scheduled by the first DCI. If Y is greater than 2 X , determined as follows: When the code point (Codepoint) of the first information indication field is the first code point, based on the interpretation method corresponding to the first code point, determining the transmission information indicated by the data channel of the first cell; 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. The interpretation method corresponding to the first code point includes: an 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 one data channel. Alternatively, the first code point can be interpreted as follows: The case where the first information indication field includes the BWP indication field When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC When (except the initial BWP) is less than or equal to 3, the second bit number corresponding to the first cell is where n BWP =n BWP,RRC +1. For the mapping relationship between the BWP indication field and the BWP number, refer to Table 2. When the number of BWPs configured by RRC signaling in the first cell is n BWP,RRC (except the initial BWP) is greater than 3 (i.e. 4), the second bit number corresponding to the first cell is where n BWP =n BWP,RRC For the mapping relationship between the BWP indication domain and the BWP number, refer to Table 3. The case where the first information indication field includes an open-loop power control parameter indication field When the SRI field does not exist in the first DCI: If the 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: 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 (a first P0-PUSCH-AlphaSet in p0-AlphaSets). ii) When the first information field is "1" or "01", the terminal device determines the P0 value according to the following value: a first value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. iii) When the first information field is "10", the terminal device determines the P0 value according to the following value: a second value in P0-PUSCH-Set with the lowest p0-PUSCH-SetID value. If the first parameter is not configured, the terminal device determines the P0 value based on the following value: the first P0-PUSCH-AlphaSet in p0-AlphaSets. When the first DCI has an SRI domain: i) When the first information 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 in P0-PUSCH-Set (a first value in P0-PUSCH-Set with a p0-PUSCH-SetId value mapped to the SRI field value). ii) Otherwise, the terminal device determines the P0 value based on the following value: the P0 value corresponding to the p0-PUSCH-AlphaSetId corresponding to the SRI field (p0-PUSCH-AlphaSetId value that is mapped to the SRI field value). The case where the first information indication field includes a priority indication field 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, please refer to the relevant technology [5, TS 38.213]. Or, the first 2 of the code points corresponding to the Y bit XThe interpretation method of the code point, and the 2 corresponding to the X bit of the information field corresponding to the first information indication field in the traditional DCI format corresponding to the first cell X The interpretation method of each code point is the same. When the information field corresponding to the first information indication field is a DCI that independently schedules the data channel of each cell, the information indication field in the DCI. 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 independently schedules the data channel of each cell. When the code point of the first information indication field is the second code point, ignoring the first information indication field; 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, it is determined that the transmission information indicated by the data channel of the first cell is the remainder code point. X The remainder result of ; The second code point refers to a code point 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. That is, the code points corresponding to the Y bits are divided by the first 2 X There are two ways to interpret code points other than 1 code point: Method 1: Ignore the first information indication field; Method 2: Interpretation of the Mth code point and the Mth mod 2 X The interpretation of the code points is the same. X +1 code point is interpreted in the same way as the first code point corresponding to the X bit of the information field corresponding to the first information indication field in the traditional DCI format, and the second X The interpretation method of the +2 code points is the same as the interpretation method of the second code point corresponding to the X bit of the information field corresponding to the first information indication field in the traditional DCI format, and so on. If Y is less than or equal to 2 X , determined as follows: The interpretation method of the code point corresponding to the Y bit is the same as the first 2 bits 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. Y Each code point is interpreted in the same way. Next, an example is given to illustrate a method of determining that the first information indication field is transmission information respectively indicated by data channels of N cells: Exemplarily, a cell group includes three cells: cell 1, cell 2, and cell 3, where the BWP configuration of each cell is as follows (the following BWPs are all downlink BWPs or all uplink BWPs): Cell 1: In addition to the initial BWP, the network device configures a UE-specific BWP (UE Specific BWP) through high-level parameters, and the corresponding BWP number is 1, that is, BWP ID = 1. According to the method for determining the second bit number described above, the second bit number corresponding to cell 1 is calculated to be log 2 (1+1)=1 bit. Since the number of BWPs configured by high-level parameters (excluding the initial BWP) is less than 3, the mapping relationship between the BWP indication field and the BWP number of cell 1 is shown in Table 2. Cell 2: In addition to the initial BWP, the network device configures three UE-specific BWPs through high-level parameters. The corresponding BWP numbers are 1, 2, and 3, that is, BWP ID = 1 / 2 / 3. According to the method for determining the second bit number described above, the second bit number corresponding to cell 2 is calculated to be log 2 (1+3)=2 bits. Since the number of BWPs configured by the high-level parameters (excluding the initial BWP) is equal to 3, the mapping relationship between the BWP indication field and the BWP number of cell 2 is shown in Table 2. Cell 3: In addition to the initial BWP, the network device configures 4 UE-specific BWPs through high-level parameters. The corresponding BWP numbers are 1, 2, 3, and 4, that is, BWP ID = 1 / 2 / 3 / 4. According to the method for determining the second bit number described above, the second bit number corresponding to cell 3 is calculated to be log 2 (4) = 2 bits. Since the number of BWPs configured by the high-level parameters (excluding the initial BWP) is greater than 3, the mapping relationship between the BWP indication field and the BWP number of cell 3 is shown in Table 3. Assuming that the first number of bits is determined based on the maximum value of the second number of bits corresponding to all cells in the cell group, the first number of bits=max{1, 2, 2}=2 bits. For cells 1, 2, and 3, the BWP indication field in the first DCI is 2. 2 = The interpretation information of 4 code points is shown in Table 4 below. Table 4 Code point interpretation information Assuming that the first number of bits is determined based on the minimum value of the second number of bits corresponding to all cells in the cell group, the first number of bits=max{1, 2, 2}=1 bit. For cells 1, 2, and 3, the BWP indication field in the first DCI is 2. 1 = The interpretation information of 2 code points is shown in Table 5 below. Table 5 Code point interpretation information For example, a cell group includes three cells: cell 1, cell 2 and cell 3. Assume that the first DCI does not contain SRS resource indication fields corresponding to cell 1, cell 2 and cell 3. The open-loop power control parameter configuration of each cell is as follows: Cell 1: The open-loop power control set list parameter, such as p0-PUSCH-SetList, is configured; the corresponding olpc-ParameterSetDCI-0-X is 1. According to the method for determining the second bit number described above, since the value of olpc-ParameterSetDCI-0-X is 1, the second bit number corresponding to cell 1 is 1 bit. Cell 2: The open-loop power control set list parameter, such as p0-PUSCH-SetList, is configured; the corresponding olpc-ParameterSetDCI-0-X is 2. According to the method for determining the second bit number described above, since the value of olpc-ParameterSetDCI-0-X is 2, the second bit number corresponding to cell 2 is 2 bits. Cell 3: No open-loop power control set list parameter is configured. According to the method for determining the second bit number described above, the second bit number corresponding to cell 3 is 0 bit. If the first number of bits in 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. For cell 1, cell 2, and cell 3, the 2 bits in the open-loop power control parameter indication field in the first DCI are 2 = The interpretation information of 4 code points is shown in Table 6 below. Table 6 Code point interpretation information If the first number of bits in 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. For cell 1, cell 2, and cell 3, the 2 bits in the open-loop power control parameter indication field in the first DCI are 1 = The interpretation information of 2 code points is shown in Table 7 below. Table 7 Code point interpretation information In summary, the method provided by the present application is that the terminal device receives the first DCI for scheduling N data channels, and the first DCI includes a first information indication field, and the terminal device can obtain the transmission information respectively indicated for the data channel of at least one cell in the scheduled cell combination. The terminal device is supported to interpret the first information indication field based on the transmission configuration parameters, or the first bit number, or the second bit number, thereby improving the flexibility of interpretation. In addition, considering different methods for determining the first bit number, a corresponding method for determining the transmission information is provided, which provides a practical solution for the interpretation of the first information indication field, thereby improving the flexibility and effectiveness of the use of the first information indication field. FIG6 shows a schematic flow chart of a method for indicating downlink control information provided by some exemplary embodiments of the present application. The method is schematically illustrated by taking the network device 110 shown in FIG1 as an example. The method includes at least some of the following steps: Step 620: Send transmission configuration parameters corresponding to the cell combination; The network device sends in advance a transmission configuration parameter corresponding to at least one cell in the cell combination; or sends a transmission configuration parameter corresponding to each cell in the cell combination. The transmission configuration parameters are used to configure information related to the transmission information. For the same type of transmission information, the transmission configuration parameters of each cell can be the same or different. To facilitate 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; The code point corresponding to the transmission information of at least one cell belonging to the same set of configurations is the same, and the code point is the code point of the first information indication field. The first DCI is used to schedule the transmission information corresponding to at least one cell belonging to the same set of configurations. Step 640: Determine a first DCI; Determining the first DCI may be understood as generating the first DCI, or configuring the first DCI. 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 channel of at least one cell in the scheduled cell combination. The transmission information respectively indicated by the first DCI for the data channel of at least one cell belongs to the same set of configurations and corresponds to the same code point. 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: The second bit number corresponding to each cell in the cell group; The transmission configuration parameters corresponding to each cell in the cell group are used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameters corresponding to each cell in the cell group; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. 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: A second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. 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: The second bit number corresponding to each cell in the cell combination; 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; The number of elements contained in the transmission configuration parameters corresponding to each cell in the cell combination; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. 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: The second bit number corresponding to at least one cell in the cell combination, the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; A bit configuration parameter, where the bit configuration parameter is used to indicate the first bit number of the first information indication field. 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: a method for determining the corresponding number of information domain bits when the data channel of each cell in at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group. The first number of bits of the first information indication field in the first DCI is at least one of the following: The maximum value of the second bit number corresponding to each cell in the cell group; The minimum value of the second bit number corresponding to each cell in the cell group; The average value of the second bit number corresponding to each cell in the cell group; The median value of the second bit number corresponding to each cell in the cell group; The maximum value of the transmission configuration parameters corresponding to each cell in the cell group; The minimum value of the transmission configuration parameter corresponding to each cell in the cell group; The average value of the transmission configuration parameters corresponding to each cell in the cell group; The median value of the transmission configuration parameter corresponding to each cell in the cell group; The maximum number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The average value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The median value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group. Alternatively, the first bit number is at least one of the following: a maximum value of the second bit numbers corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a minimum value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; an average value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a median value of a second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a maximum value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a minimum value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; an average value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a median value of a transmission configuration parameter corresponding to at least one cell in a cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; The maximum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; an average value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; A median value of the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell group, where the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell group is greater than zero. Alternatively, the first bit number is at least one of the following: The maximum value of the second bit number corresponding to each cell in the cell combination; The minimum value of the second bit number corresponding to each cell in the cell combination; The average value of the second bit number corresponding to each cell in the cell combination; The median value of the second bit number corresponding to each cell in the cell combination; The maximum value of the transmission configuration parameters corresponding to each cell in the cell combination; The minimum value of the transmission configuration parameter corresponding to each cell in the cell combination; The average value of the transmission configuration parameters corresponding to each cell in the cell combination; The median value of the transmission configuration parameter corresponding to each cell in the cell combination; The maximum number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The average value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; The median value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination. Alternatively, the first bit number is at least one of the following: a maximum value of the second bit numbers corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; The minimum value of the second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; an average value of the second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; a median value of a second bit number corresponding to at least one cell in the cell combination, where the second bit number corresponding to at least one cell in the cell combination is greater than 0; a maximum value of a transmission configuration parameter 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 parameter; a minimum value of a transmission configuration parameter 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 parameter; an average value of a transmission configuration parameter 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 parameter; a median value of a transmission configuration parameter 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 parameter; The maximum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; an average value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; A median value of the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in a transmission configuration parameter corresponding to at least one cell in the cell combination is greater than zero. In some embodiments, the network device generates the first DCI based on at least one of the following that is not expected by the terminal device: The number of second bits corresponding to each cell in the cell group is different; Each cell in the cell group has different corresponding transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell group contain a different number of elements. Alternatively, the network device generates the first DCI based on at least one of the following that is not expected by the terminal device: The second bit number corresponding to at least one cell in the cell group is different, and the second bit number corresponding to at least one cell in the cell group is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell group is different, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than zero. Alternatively, the network device generates the first DCI based on at least one of the following that is not expected by the terminal device: The number of second bits corresponding to each cell in the cell combination is different; Each cell in the cell combination has different corresponding transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell combination contain different numbers of elements. Alternatively, the network device generates the first DCI based on at least one of the following that is not expected by the terminal device: The second bit number corresponding to at least one cell in the cell combination is different, and the second bit number corresponding to at least one cell in the cell combination is greater than 0; The transmission configuration parameter corresponding to at least one cell in the cell combination is different, and at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than zero. Step 660: Send a first DCI. The first DCI is used to schedule N data channels, and the first DCI includes a first information indication field. The first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination. The scheduled cell combination is a combination of N cells, and the N data channels correspond to N cells, where N is a positive integer. That is, N is equal to 1 and / or N is greater than 1. The data channel is PDSCH or PUSCH, N PDSCHs or PUSCHs correspond to N cells, the N cells belong to a cell combination (Cell Combination), and the cell combination belongs to a cell group (Set of Cells). In some embodiments, the first information indication field indicates transmission information for a data channel of the at least one cell respectively. In some embodiments, the network device receives data on at least one data channel of the N data channels; In the present application, a data channel can also be understood as data transmitted on a 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 data sent by the terminal device on at least one of the N data channels. In some embodiments, the network device sends data on at least one data channel of the N data channels; After scheduling N data channels through the first DCI, the network device transmits data on at least one data channel among the N data channels, and the network device sends data to the terminal device on at least one data channel among the N data channels. To summarize, the method provided in the present application is that a network device sends a first DCI for scheduling N data channels, and the first DCI includes a first information indication field, which supports the terminal device to obtain the transmission information respectively indicated for the data channel of at least one cell in the scheduled cell combination. FIG7 shows a block diagram of a device for indicating downlink control information provided by some exemplary embodiments of the present application. The device includes at least some of the following receiving modules 710 and determining modules 730: A receiving module 710 is configured to receive 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. In some embodiments, the apparatus further includes a determining module 730, configured to determine that the first information indication field is transmission information respectively indicated by a data channel of the at least one cell based on at least one of the following: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The first information indicates a first bit number of the domain; The second number of bits is determined according to at least one of the following: a method for determining the number of bits in the information domain corresponding to the individual scheduling of the data channel of each cell in the at least one cell, and a transmission configuration parameter 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. In some embodiments, when the second bit number corresponding to the first cell is zero, the first information indication field is not data channel indication transmission information of the first cell; and / or, when the second bit number corresponding to the first cell is greater than zero, the first information indication field is data channel indication transmission information of the first cell; The first cell is any cell in the cell combination. 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; The determining module 730 is further configured to determine, 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, that the first information indication field is transmission information indicated by the data channel of the first cell; The first code point refers to the first 2 code points corresponding to the Y bits. X The code point. In some embodiments, the interpretation method corresponding to the first code point includes: an interpretation method of the corresponding information field when the data channel of each cell in the at least one cell is scheduled separately. 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; 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 the second code point; The second code point refers to the code point other than the first code point among the code points corresponding to the Y bit, and the first code point refers to the first 2 code points among the code points corresponding to the Y bit in the first information indication field. X The code point. 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; The determining module 730 is further configured to determine, when the code point of the first information indication field is a second code point, based on the interpretation method of the remainder code point, that the first information indication field is transmission information indicated by the data channel of the first cell, and the remainder code point is the second code point based on 2 X The remainder result of ; The second code point refers to the code point other than the first code point among the code points corresponding to the Y bit, and the first code point refers to the first 2 code points among the code points corresponding to the Y bit in the first information indication field. X The code point. In some embodiments, the interpretation method corresponding to the remainder code point includes: an interpretation method of the corresponding information field when the data channel of the first cell is scheduled separately. In some embodiments, Y is greater than 2 X . 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; The determination module 730 is further configured to determine, based on the interpretation method of the third code point, that the first information indication field is transmission information indicated by the data channel of the first cell; The third code point is the code point corresponding to the Y bit. In some embodiments, the interpretation method corresponding to the third code point includes: an interpretation method of the corresponding information field when the data channel of each cell in the at least one cell is scheduled separately. In some embodiments, Y is less than or equal to 2 X . 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; Among them, the code point corresponding to the transmission information corresponding to the at least one cell belonging to the same set of configurations is the same, the 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 the at least one cell belonging to the same set of configurations. 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: The second bit number corresponding to each cell in the cell group; A transmission configuration parameter corresponding to each cell in the cell group, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group. In some embodiments, the first number of bits is at least one of the following: The maximum value of the second bit numbers corresponding to each cell in the cell group; A minimum value of the second bit numbers corresponding to each cell in the cell group; A maximum value among the transmission configuration parameters corresponding to each cell in the cell group; The minimum value of the transmission configuration parameters corresponding to each cell in the cell group; a maximum value among the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group. In some embodiments, the terminal device does not expect at least one of the following: The second bit number corresponding to each cell in the cell group is different; Each cell in the cell group corresponds to different transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell group contain a different number of elements. 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: a second bit number corresponding to at least one cell in the cell group, wherein the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group. In some embodiments, the first number of bits is at least one of the following: The maximum value of the second bit number corresponding to at least one cell in the cell group, the second bit number corresponding to at least one cell in the cell group is greater than 0; A minimum value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a maximum value among the transmission configuration parameters corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameters; a minimum value of a transmission configuration parameter corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a maximum value among the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, wherein the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0. In some embodiments, the terminal device does not expect at least one of the following: The second bit number corresponding to at least one cell in the cell group is different, and the second bit number corresponding to at least one cell in the cell group is greater than 0; At least one cell in the cell group corresponds to a different transmission configuration parameter, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0. 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: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination. 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: A second bit number corresponding to at least one cell in the cell combination, wherein the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination. In some embodiments, the first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field. In some embodiments, the transmission configuration parameter includes at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter. To summarize, the apparatus provided in the present application supports receiving a first DCI for scheduling N data channels, wherein the first DCI includes a first information indication field, so that the terminal device can obtain transmission information respectively indicated by the data channel of at least one cell in the scheduled cell combination. FIG8 shows a block diagram of a device for indicating downlink control information provided by some exemplary embodiments of the present application. The device includes at least some of the following modules in the sending module 810 and the generating module 830: A sending module 810 is configured to send 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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. In some embodiments, the apparatus further comprises a generating module 830 for generating the first DCI, wherein a code point of the first information indication field in the first DCI is determined based on transmission information respectively indicated for a data channel of the at least one cell. In some embodiments, the sending module 810 is further used to send a transmission configuration parameter corresponding to the at least one cell in the cell combination, where the transmission configuration parameter is used to configure information related to the transmission information. 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; Among them, the code point corresponding to the transmission information corresponding to the at least one cell belonging to the same set of configurations is the same, the 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 the at least one cell belonging to the same set of configurations. In some embodiments, the first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field. In some embodiments, the transmission configuration parameter includes at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter. To summarize, the apparatus provided in the present application supports sending a first DCI for scheduling N data channels, wherein the first DCI includes a first information indication field, so that the terminal device can obtain the transmission information indicated by the data channel of at least one cell in the scheduled cell combination. It should be noted that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. Regarding the device in this embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here. FIG9 shows a schematic diagram of the structure of a communication device (terminal device or network device) provided in some exemplary embodiments of the present application. The communication device 900 includes: a processor 901 , a receiver 902 , a transmitter 903 , a memory 904 and a bus 905 . The processor 901 includes one or more processing cores, and 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. The receiver 902 and the transmitter 903 may be implemented as a communication component, which may be a communication chip. In some embodiments, the receiver 902 may be used to implement the functions and steps of the receiving module 710 as described above. In some embodiments, the transmitter 903 may be used to implement the functions and steps of the sending module 810 as described above. The memory 904 is connected to the processor 901 via a bus 905. The memory 904 may be used to store at least one instruction, and the processor 901 may be used to execute the at least one instruction to implement each step in the above method embodiment. In addition, the memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. The volatile or non-volatile storage device includes but is not limited to: a magnetic disk or an optical disk, an Electrically Erasable Programmable Read Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Static Random-Access Memory (SRAM), a Read-Only Memory (ROM), a magnetic storage device, a flash memory, and a Programmable Read-Only Memory (PROM). In some embodiments, the receiver 902 receives signals / data independently, 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. In some embodiments, the transmitter 903 independently sends signals / data, or the processor 901 controls the transmitter 903 to send signals / data, or the processor 901 requests the transmitter 903 to send signals / data, or the processor 901 cooperates with the transmitter 903 to send signals / data. In an exemplary embodiment of the present application, a computer-readable storage medium is further provided, wherein 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 downlink control information indication method provided by the above-mentioned various method embodiments. In an exemplary embodiment of the present application, a chip is also provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to implement the downlink control information indication method provided by the above-mentioned various method embodiments. In an exemplary embodiment of the present application, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device executes the above-mentioned method for indicating downlink control information. In an exemplary embodiment of the present application, a computer program is further provided. The computer program includes computer instructions. A processor of a computer device executes the computer instructions, so that the computer device executes the above-mentioned method for indicating downlink control information. Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with 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. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access. The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for indicating downlink control information, characterized in that: The method is performed by a terminal device, and the method includes: receiving 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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.

2. The method according to claim 1, characterized in that The first information indication field is transmission information respectively indicated by the data channel of the at least one cell, and is determined based on at least one of the following: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The first information indicates a first bit number of the domain; The second number of bits is determined according to at least one of the following: a method for determining the number of bits in the information domain corresponding to the individual scheduling of the data channel of each cell in the at least one cell, and a transmission configuration parameter 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.

3. The method according to claim 2, characterized in that When the second number of bits corresponding to the first cell is zero, the first information indication field is not data channel indication transmission information of the first cell; or, when the second number of bits corresponding to the first cell is greater than zero, the first information indication field is data channel indication transmission information of the first cell; The first cell is any cell in the cell combination.

4. The method according to claim 2, characterized in that: 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; In a case where the code point of the first information indication field is the first code point, the first information indication field is transmission information indicated by the data channel of the first cell, which is determined based on the interpretation mode corresponding to the first code point; The first code point refers to the first m code points among the code points corresponding to the Y bits.

5. The method according to claim 2, characterized in that: 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; In the case where the code point of the first information indication field is the second code point, the first information indication field is ignored; The second code point refers to a code point 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.

6. The method according to claim 2, characterized in that 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; In the case where the code point of the first information indication field is the second 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 of the remainder code point, and the remainder code point is the remainder result of the second code point based on m; The second code point refers to a code point 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.

7. The method according to any one of claims 4 to 6, characterized in that: Y is greater than m, and m is 2 X .

8. The method according to claim 2, characterized in that: 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; The first information indication field is transmission information indicated by the data channel of the first cell, which is determined based on the interpretation method of the third code point; The third code point is the code point corresponding to the Y bit.

9. The method according to claim 8, characterized in that Y is less than or equal to m, m is 2 X .

10. The method according to any one of claims 3 to 9, characterized in that: 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; Among them, the code points corresponding to the transmission information corresponding to the at least one cell belonging to the same set of configurations in the at least two sets of configurations are the same, and the code points are the code points of the first information indication field. The first DCI is used to schedule the transmission information corresponding to the at least one cell belonging to the same set of configurations, and the transmission information corresponding to the at least two sets of configurations is partially different or completely different.

11. The method according to claim 1 or 2, characterized in that: The first number of bits of the first information indication field is determined based on at least one of the following: The second bit number corresponding to each cell in the cell group; A transmission configuration parameter corresponding to each cell in the cell group, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

12. The method according to claim 11, characterized in that The first number of bits is at least one of the following: The maximum value of the second bit numbers corresponding to each cell in the cell group; A minimum value of the second bit numbers corresponding to each cell in the cell group; A maximum value among the transmission configuration parameters corresponding to each cell in the cell group; A minimum value among the transmission configuration parameters corresponding to each cell in the cell group; a maximum value among the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group.

13. The method according to any one of claims 10 to 12, characterized in that: The terminal device does not expect at least one of the following: The second bit number corresponding to each cell in the cell group is different; Each cell in the cell group corresponds to different transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell group contain a different number of elements.

14. The method according to claim 10, characterized in that The first number of bits is determined based on at least one of the following: a second bit number corresponding to at least one cell in the cell group, wherein the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

15. The method according to claim 14, characterized in that The first number of bits is at least one of the following: The maximum value of the second bit number corresponding to at least one cell in the cell group, the second bit number corresponding to at least one cell in the cell group is greater than 0; A minimum value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a maximum value among the transmission configuration parameters corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameters; a minimum value of a transmission configuration parameter corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a maximum value among the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, wherein the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0.

16. The method according to claim 10, 14 or 15, characterized in that: The terminal device does not expect at least one of the following: The second bit number corresponding to at least one cell in the cell group is different, and the second bit number corresponding to at least one cell in the cell group is greater than 0; At least one cell in the cell group corresponds to a different transmission configuration parameter, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0.

17. The method according to claim 10, characterized in that The first number of bits is determined based on at least one of the following: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

18. The method according to claim 10, characterized in that The first number of bits is determined based on at least one of the following: A second bit number corresponding to at least one cell in the cell combination, wherein the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

19. The method according to any one of claims 1 to 18, characterized in that: The first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field.

20. The method according to any one of claims 2 to 18, characterized in that: The transmission configuration parameters include at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter.

21. A method for indicating downlink control information, characterized in that: The method is performed by a network device, and the method includes: Sending 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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.

22. The method according to claim 21, characterized in that The method further comprises: The first DCI is determined, wherein a code point of the first information indication field in the first DCI is determined based on transmission information respectively indicated for a data channel of the at least one cell.

23. The method according to claim 22, characterized in that The method further comprises: Send a transmission configuration parameter corresponding to the at least one cell in the cell combination, where the transmission configuration parameter is used to configure information related to the transmission information.

24. The method according to claim 23, characterized in that 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; Among them, the code point corresponding to the transmission information corresponding to the at least one cell belonging to the same set of configurations is the same, the 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 the at least one cell belonging to the same set of configurations.

25. The method according to any one of claims 21 to 24, characterized in that: The first number of bits of the first information indication field is determined based on at least one of the following: The second bit number corresponding to each cell in the cell group; A transmission configuration parameter corresponding to each cell in the cell group, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

26. The method according to claim 25, characterized in that The first number of bits is at least one of the following: The maximum value of the second bit numbers corresponding to each cell in the cell group; A minimum value of the second bit numbers corresponding to each cell in the cell group; A maximum value among the transmission configuration parameters corresponding to each cell in the cell group; A minimum value among the transmission configuration parameters corresponding to each cell in the cell group; a maximum value among the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; The minimum value of the number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group.

27. The method according to claim 26, characterized in that The sending of the first DCI includes: The first DCI is sent based on at least one of the following that is not expected by the terminal device: The second bit number corresponding to each cell in the cell group is different; Each cell in the cell group corresponds to different transmission configuration parameters; The transmission configuration parameters corresponding to each cell in the cell group contain a different number of elements.

28. The method according to any one of claims 21 to 24, characterized in that: The first number of bits is determined based on at least one of the following: a second bit number corresponding to at least one cell in the cell group, wherein the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

29. The method according to claim 28, characterized in that The first number of bits is at least one of the following: The maximum value of the second bit number corresponding to at least one cell in the cell group, the second bit number corresponding to at least one cell in the cell group is greater than 0; A minimum value of the second bit number corresponding to at least one cell in the cell group, where the second bit number corresponding to at least one cell in the cell group is greater than 0; a maximum value among the transmission configuration parameters corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameters; a minimum value of a transmission configuration parameter corresponding to at least one cell in the cell group, and at least one cell in the cell group is configured with the transmission configuration parameter; a maximum value among the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, wherein the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; The minimum value of the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0.

30. The method according to claim 29, characterized in that The sending of the first DCI includes: The first DCI is sent based on at least one of the following that is not expected by the terminal device: The second bit number corresponding to at least one cell in the cell group is different, and the second bit number corresponding to at least one cell in the cell group is greater than 0; At least one cell in the cell group corresponds to a different transmission configuration parameter, and at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is different, and the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0.

31. The method according to any one of claims 21 to 24, characterized in that: The first number of bits is determined based on at least one of the following: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

32. The method according to any one of claims 21 to 24, characterized in that: The first number of bits is determined based on at least one of the following: A second bit number corresponding to at least one cell in the cell combination, wherein the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

33. The method according to any one of claims 21 to 32, characterized in that: The first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field.

34. The method according to any one of claims 23 to 32, characterized in that: The transmission configuration parameters include at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter.

35. A device for indicating downlink control information, characterized in that: The device comprises: A receiving module, configured to receive 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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.

36. The device according to claim 35, characterized in that The device also includes: A determination module, configured to determine, based on at least one of the following, that the first information indication field is transmission information respectively indicated by a data channel of the at least one cell: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The first information indicates a first bit number of the domain; The second number of bits is determined according to at least one of the following: a method for determining the number of bits in the information domain corresponding to the individual scheduling of the data channel of each cell in the at least one cell, and a transmission configuration parameter 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.

37. The device according to claim 36, characterized in that The determining module is further configured to determine the first number of bits based on at least one of the following: The second bit number corresponding to each cell in the cell group; A transmission configuration parameter corresponding to each cell in the cell group, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell group; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

38. The device according to claim 36, characterized in that The determining module is further configured to determine the first number of bits based on at least one of the following: a second bit number corresponding to at least one cell in the cell group, wherein the second bit number corresponding to at least one cell in the cell group is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell group, wherein at least one cell in the cell group is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group, the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell group is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; Among them, the cell combination belongs to the cell group, and the second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is individually scheduled, and a transmission configuration parameter corresponding to each cell in the cell group.

39. The device according to claim 36, characterized in that The determining module is further configured to determine the first number of bits based on at least one of the following: A second bit number corresponding to each cell in the cell combination; A transmission configuration parameter corresponding to each cell in the cell combination, wherein the transmission configuration parameter is used to configure information related to the transmission information; The number of elements contained in the transmission configuration parameter corresponding to each cell in the cell combination; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

40. The device according to claim 36, characterized in that The determining module is further configured to determine the first number of bits based on at least one of the following: A second bit number corresponding to at least one cell in the cell combination, wherein the second bit number corresponding to at least one cell in the cell combination is greater than 0; a transmission configuration parameter corresponding to at least one cell in the cell combination, wherein at least one cell in the cell combination is configured with the transmission configuration parameter; The number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination, where the number of elements included in the transmission configuration parameter corresponding to at least one cell in the cell combination is greater than 0; a bit configuration parameter, where the bit configuration parameter is used to indicate the first number of bits of the first information indication field; The second number of bits is determined according to at least one of the following: a method for determining the corresponding number of information domain bits when the data channel of each cell in the at least one cell is scheduled separately, and a transmission configuration parameter corresponding to each cell in the cell combination.

41. The device according to any one of claims 35 to 40, characterized in that The first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field.

42. The device according to any one of claims 36 to 40, characterized in that The transmission configuration parameters include at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter.

43. A device for indicating downlink control information, characterized in that: The device comprises: A sending module, configured to send 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, where the first information indication field is used to indicate transmission information for a data channel of at least one cell in the scheduled cell combination; 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.

44. The device according to claim 43, characterized in that The device also includes a generating module, configured to generate the first DCI, wherein a code point of the first information indication field in the first DCI is determined based on transmission information respectively indicated for a data channel of the at least one cell.

45. The device according to claim 44, characterized in that The sending module is further used to send a transmission configuration parameter corresponding to the at least one cell in the cell combination, where the transmission configuration parameter is used to configure information related to the transmission information.

46. ​​The device according to claim 45, characterized in that 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; Among them, the code point corresponding to the transmission information corresponding to the at least one cell belonging to the same set of configurations is the same, the 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 the at least one cell belonging to the same set of configurations.

47. The device according to any one of claims 43 to 46, characterized in that The first information indication field includes at least one of the following: Bandwidth part BWP indication field; Open loop power control parameter indication domain; Priority indication field.

48. The device according to claim 45 or 46, characterized in that The transmission configuration parameters include at least one of the following: Bandwidth part BWP configuration parameters; Open loop power control set list parameters; Whether the first DCI includes a sounding reference signal SRS information indication field; Transmission configuration parameters used to configure the number of bits in the open-loop power control parameter indication field; Priority configuration parameter.

49. A terminal device, characterized in that: The terminal device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load and execute the executable instructions so that the terminal device implements the method for indicating downlink control information as described in any one of claims 1 to 20.

50. A network device, characterized in that: The network equipment includes: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The processor is configured to load and execute the executable instructions so that the network device implements the method for indicating downlink control information as described in any one of claims 21 to 34.

51. A computer-readable storage medium, characterized in that: The readable storage medium stores executable instructions, and the executable instructions are loaded and executed by the processor to enable the communication device to implement the downlink control information indication method as described in any one of claims 1 to 20, or the downlink control information indication method as described in any one of claims 21 to 34.

52. A chip, characterized in that: The chip includes a programmable logic circuit or a program, and the chip is used to implement the downlink control information indication method as described in any one of claims 1 to 20, or the downlink control information indication method as described in any one of claims 21 to 34.

53. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. The processor of the communication device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the communication device executes the downlink control information indication method according to any one of claims 1 to 20, or the downlink control information indication method according to any one of claims 21 to 34.

54. A computer program, characterized in that The computer program includes computer instructions, and the processor of the communication device executes the computer instructions, so that the communication device executes the downlink control information indication method as described in any one of claims 1 to 20, or the downlink control information indication method as described in any one of claims 21 to 34.

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