Information sending method, information receiving method, and apparatus, storage medium and program product

Abstract

Provided are an information sending method, an information receiving method, and an apparatus, a storage medium and a program product. The information sending method comprises: sending information in N pieces of downlink control information, wherein the N pieces of downlink control information comprise N1 pieces of first-level downlink control information and N2 pieces of second-level downlink control information, N, N1 and N2 being positive integers, and N1+N2=N.

Description

Information sending and receiving methods, devices, storage media and program products

[0001] This disclosure claims priority to Chinese patent application No. 202510084477.0, filed on January 17, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a method, apparatus, storage medium, and program product for transmitting and receiving information. Background Technology

[0003] In wireless communication systems, key strategies for improving transmission efficiency include, but are not limited to, increasing bandwidth and / or expanding antenna array size. Multi-antenna technology, as a core means of improving spectral efficiency, has been widely applied in various wireless communication systems. Multi-antenna technology includes key technologies such as multiple input multiple output (MIMO), coordinated multipoint (CoMP) transmission (e.g., joint transmission, JT), and high-frequency beamforming.

[0004] The performance optimization of multi-antenna technology is highly dependent on the accuracy or precision of Channel State Information (CSI). For example, in a high-bandwidth environment, the CSI of different subcarriers may vary significantly. In this case, a more precise CSI transmission scheme is needed, such as CSI of one or more sub-bands, but this will also significantly increase signaling overhead. Summary of the Invention

[0005] In a first aspect, this disclosure provides a method for sending information, the method comprising:

[0006] Information is transmitted in N downlink control messages; wherein, the N downlink control messages include N1 first-level downlink control messages and N2 second-level downlink control messages, where N, N1, and N2 are positive integers, and N1 + N2 = N.

[0007] Secondly, this disclosure also provides a method for receiving information, the method comprising:

[0008] Receive N downlink control messages; wherein, the N downlink control messages include N1 first-level downlink control messages and N2 second-level downlink control messages, where N, N1, and N2 are positive integers, and N1 + N2 = N.

[0009] Thirdly, this disclosure also provides a communication device, comprising:

[0010] The transmitting module is used to transmit information in N downlink control information; wherein, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, N, N1 and N2 are positive integers, and N1+N2=N.

[0011] Fourthly, this disclosure also provides a communication device, comprising:

[0012] The receiving module is used to receive N downlink control information; wherein, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, N, N1 and N2 are positive integers, and N1+N2=N.

[0013] Fifthly, a communication device is provided, comprising: a processor and a memory; the memory storing processor-executable instructions; when the processor is configured to execute the instructions, causing the communication device to implement any of the methods provided in the first to second aspects above.

[0014] A sixth aspect provides a computer-readable storage medium comprising a non-transitory computer-readable storage medium having computer instructions stored thereon, which, when executed on a computer, cause the computer to perform any of the methods provided in the first or second aspect.

[0015] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, cause the computer to perform any of the methods provided in the first or second aspect. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the technical solutions of this disclosure and constitute a part of the specification. They are used together with the embodiments of this disclosure to explain the technical solutions of this disclosure and do not constitute a limitation on the technical solutions of this disclosure.

[0017] Figure 1 is a schematic diagram of the architecture of a communication system according to some embodiments.

[0018] Figure 2 is a flowchart of an information transmission method according to some embodiments.

[0019] Figure 3 is a flowchart of an information receiving method according to some embodiments.

[0020] Figure 4 is a block diagram of a communication device according to some embodiments.

[0021] Figure 5 is a block diagram of another communication device according to some embodiments.

[0022] Figure 6 is a block diagram of a communication device according to some embodiments. Detailed Implementation

[0023] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0024] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0025] It should be noted that, in this disclosure, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0026] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0027] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "more than one" means two or more.

[0028] In this disclosure, suffixes such as "module," "part," or "unit" used to represent elements are used only for the purpose of illustrative purposes and have no inherent meaning. Therefore, "module," "part," or "unit" can be used interchangeably.

[0029] To facilitate understanding, we will first provide a brief introduction and explanation of some terms or basic concepts of technology involved in the embodiments of the present invention.

[0030] In some embodiments, higher-layer signaling includes, but is not limited to, at least one of the following: radio resource control (RRC), media access control element (MAC CE), and other signaling other than physical layer signaling. Physical layer signaling includes, but is not limited to: downlink physical layer signaling transmitted on the physical downlink control channel (PDCCH), uplink physical layer signaling transmitted on the physical uplink control channel (PUCCH), and physical layer signaling transmitted on the physical uplink shared channel (PUSCH).

[0031] In some embodiments, physical channels are divided into physical downlink channels and physical uplink channels. The physical downlink channel includes, but is not limited to, the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH). The physical uplink channel includes, but is not limited to, the physical uplink control channel (PUCCH) and the physical uplink shared channel (PUSCH). In some embodiments, the PDCCH is mainly used to transmit downlink control information (DCI). The PUCCH is mainly used to transmit uplink control information (UCI), such as channel state information (CSI), hybrid automatic repeat request (HARQ), and scheduling request. The PDSCH is mainly used to transmit downlink data and downlink signaling. The PUSCH is mainly used to transmit uplink data and uplink signaling.

[0032] In some embodiments, the transmission resources corresponding to the physical downlink control channel (PDCCH) include one or more control channel elements (CCEs). Each CCE includes multiple resource element groups (REGs), and each REG includes multiple resource elements (REs).

[0033] A control resource set (CORESET) comprises several physical resource blocks (PRBs) in the frequency domain and K symbols in the time domain, where K is a natural number such as 1, 2, 3, etc. The CORESET defines the time-frequency resources that the PDCCH can use. In other words, the CORESET is a container for PDCCH transmission, determining on which resources the PDCCH can be discovered. Within each CORESET, the terminal searches for its own PDCCH in the configured search space (SS). The search space contains a set of possible PDCCH candidates (sometimes called candidate PDCCHs), which exist at different aggregation levels. The User Equipment (UE) needs to attempt to decode these candidate PDCCHs to find the downlink control information (DCI) transmitted to it.

[0034] In some embodiments, in order to detect a PDCCH, the terminal needs to search for possible PDCCH candidates in one or more search spaces. Each search space contains a set of candidate PDCCHs at a specific aggregation level, and multiple such search spaces are combined to form a search space set (SSS). Each terminal can be configured with one or more such search space sets.

[0035] In some embodiments, a PDCCH monitoring occcasion is defined within each search space, which is the time point at which the terminal checks the PDCCH. These monitoring occcasions are determined by the PDCCH monitoring periodicity, monitoring offset, and monitoring pattern on the active bandwidth part (BWP). Simultaneously, each monitoring occcasion is associated with a set of PDCCH monitoring candidates.

[0036] In some embodiments, the detection period, detection pattern, slot offset (also known as slot offset), and symbol position are configured in the configuration information of the search space set. Here, the detection period is the time interval for detecting the search space set, the slot offset is the slot offset between the start of the detection time and the actual detection of the search space set, and the symbol position is the starting symbol position of the CORESET associated with the search space set within each slot.

[0037] In some embodiments, the PDCCH carries downlink control information (DCI) in different formats, each format corresponding to a specific type of DCI message. Each DCI contains multiple fields, each field carrying different physical layer signaling. In some embodiments, the fields (or domains) of the DCI are used to indicate at least one of the following physical layer signaling: carrier indicator, BWP indicator, DCI format identifier, frequency domain resource allocation, time domain resource allocation, modulation and coding scheme (MCS), redundancy version, HARQ process number, power control command for scheduling PUSCH, sounding reference signal (SRS) resource set indicator, SRS resource indicator, precoding information and layer number, antenna ports, DMRS sequence initialization, etc.

[0038] In some embodiments, the indicators of various parameters may also be called indexes or identifiers (IDs). Indicators, identifiers, and indexes are equivalent concepts and can be used interchangeably in some embodiments.

[0039] In some embodiments, a resource identifier for a wireless system can be used to identify resources of the wireless system. This resource identifier can also be referred to as a resource indicator or resource index. Here, the resources of the wireless system include, but are not limited to, one of the following: reference signal resources, reference signal resource groups, reference signal resource configurations, channel state information (CSI) reports, CSI report sets, terminals, base stations, panels, neural networks, sub-neural networks, neural network layers, precoding matrices, beams, transmission methods, transmission methods, reception methods, modules, models, functional modules, functions, etc. The base station can configure one or a set of resource identifiers for the terminal via higher-layer signaling or physical-layer signaling. The terminal can also send one or a set of resource identifiers to the base station via higher-layer signaling and / or physical-layer signaling.

[0040] In some embodiments, the transmission unit includes an uplink transmission unit and a downlink transmission unit. The transmission unit includes one of the following: an antenna panel, a panel, a sub-panel, a port group, and a port subgroup. Here, a port group includes at least one port, and the port group includes a port group corresponding to a transmission reception point (TRP), a port group corresponding to a panel, etc. The port group can also be replaced by an antenna group.

[0041] In some embodiments, the uplink transmission unit may be used to transmit at least one of the following: a physical uplink shared channel, a physical uplink control channel, and an uplink reference signal. The downlink transmission unit is used to transmit at least one of the following: a physical downlink shared channel, a physical downlink control channel, and a downlink reference signal.

[0042] In some embodiments, the transmission element index includes one of the following: antenna panel index, panel index, sub-panel index, port group index, and sub-port group index. In some embodiments, the transmission element is bound to a reference signal resource, thereby the transmission element index may also be replaced by its corresponding reference signal resource index or reference signal resource set index.

[0043] In some embodiments, the resource index i can range from 1 to a maximum value D. However, in other embodiments, the resource index i can range from 0 to a maximum value D-1. D is the maximum number of resources. Resources can be one or a group of the aforementioned wireless resources.

[0044] In some embodiments, transmission includes sending or receiving. For example, transmitting data can be understood as sending or receiving data, and transmitting signals can be understood as sending or receiving signals. In some embodiments, physical layer signaling and / or higher layer signaling are also a type of data.

[0045] In some embodiments, communication nodes need to transmit reference signals (RS) to obtain channel state information or perform channel estimation, mobility management, positioning, etc. Here, reference signals include, but are not limited to, channel-state information reference signals (CSI-RS), channel-state information interference measurement (CSI-IM), SRS, synchronization signals block (SSB), physical broadcast channel (PBCH), and synchronization signal block / physical broadcast channel (SSB / PBCH). In some embodiments, SSB includes synchronization signals block and / or physical broadcast channel. In some embodiments, channel state information reference signals include zero-power CSI-RS (ZP CSI-RS) and non-zero-power CSI-RS (NZP CSI-RS). Furthermore, the time-frequency resources used to transmit reference signals are called reference signal resources, which include a set of one or more REs, such as CSI-RS resource, SRS resource, CSI-IM resource, SSB resource, etc. The reference signal is transmitted on the reference signal resource.

[0046] In some embodiments, to save signaling overhead, multiple reference signal resources may be divided into multiple reference signal resource sets. A reference signal resource set (resource set) can also be called a reference signal resource group, such as a CSI-RS resource set, CSI-IM resource set, SRS resource set, SSB resource set, etc. A reference signal resource set includes at least one reference signal resource, and multiple reference signal resource sets can originate from the same reference signal resource setting. The reference signal resource setting can be used to configure parameter information, such as configuring the reference signal resource set. For example, a reference signal resource setting (resource setting) includes, but is not limited to, a CSI-RS resource setting, a CSI-IM resource setting, an SRS resource setting, and an SSB resource setting. Here, the CSI-RS resource setting may be merged with the CSI-IM resource setting and both are referred to as a CSI-RS resource setting. A reference signal resource setting can include at least one reference signal resource set. Additionally, a reference signal resource setting can also be called a reference signal configuration (RS config), such as a CSI-RS resource config, a CSI-IM resource config, an SRS resource config, and an SSB resource config.

[0047] In some embodiments, a time instance represents a time period, such as a slot, mini-slot, or symbol group. A slot or mini-slot may include at least one symbol. In one embodiment, a symbol refers to a time unit within a subframe, frame, or slot, and the unit may be milliseconds, microseconds, nanoseconds, seconds, etc. In one embodiment, a symbol may be an orthogonal frequency division multiplexing (OFDM) symbol, a single-carrier frequency division multiple access (SC-FDMA) symbol, an orthogonal frequency division multiple access (OFDMA) symbol, or symbols corresponding to various waveforms in future communication systems. In some embodiments, the slot may be replaced by a time instance, mini-slot, etc.

[0048] In some embodiments, the transmission unit carrying a modulation symbol is a resource element (RE), where RE is the minimum hourly frequency resource used to transmit a modulation symbol, including a subcarrier and radio resources on the symbol. The hourly frequency resources consisting of one or more subcarriers on one or more symbols constitute a physical resource block (PRB). In one embodiment, the hourly frequency resources corresponding to S1 consecutive symbols and C1 consecutive subcarriers constitute a physical resource block, where S1 and C1 are positive integers, such as 14 and 12 respectively.

[0049] In some embodiments, threshold values, or preset threshold values, are required. These threshold values ​​can be at least one of the following: real numbers, positive integers, integers, Boolean values, characters, or strings. The threshold values ​​can be agreed upon by the base station and the terminal, or be default values, or empirical values ​​obtained from simulation or practice, or values ​​indicated to each other by communication nodes through higher-layer and / or physical-layer signaling. For ease of distinction, a first threshold, a second threshold, etc., can be included; these are only used to distinguish different threshold values, not for ordering. In other embodiments, thresholds can be replaced by threshold groups, each threshold group including one or more thresholds.

[0050] In some embodiments, channel information is information obtained from a reference signal (such as CSI-RS) to describe the channel environment between communication nodes. In one embodiment, channel information is a complex matrix, which may be called a channel matrix. The size of the channel matrix is ​​related to the number of transmit antennas Nt, the number of receive antennas Nr, and the number of resource elements. For example, there is at least one Nr*Nt channel matrix on a physical resource block (PRB).

[0051] In some embodiments, the channel information may include at least one of the following: time-domain channel information, frequency-domain channel information, one or more eigenvectors of the correlation matrix corresponding to the time-domain channel information, one or more singular vectors of the correlation matrix corresponding to the time-domain channel information, one or more eigenvectors of the correlation matrix corresponding to the frequency-domain channel information, one or more singular vectors of the correlation matrix corresponding to the frequency-domain channel information, a precoding matrix corresponding to the frequency-domain channel, a precoding matrix corresponding to the time-domain channel, one or more codewords corresponding to the frequency-domain channel, and one or more codewords corresponding to the time-domain channel. Here, both the time-domain channel information and the frequency-domain channel information can represent information describing channel characteristics between at least one transmit antenna and at least one receive antenna, and can be a matrix or a multi-dimensional array or matrix.

[0052] In some embodiments, a vector can also be referred to as a matrix. A matrix can also be replaced by concepts such as tensors and arrays.

[0053] In some embodiments, partial channel information includes at least one of the following: channel information on partial ports, channel information on partial resource elements, and channel information on partial layers.

[0054] In some embodiments, all channel information includes at least one of the following: channel information on all ports, channel information on all resource elements, and channel information on all layers.

[0055] In some embodiments, the information processing methods include at least linear and nonlinear information processing methods. Here, nonlinear information processing methods include, but are not limited to, various advanced information processing technologies, such as artificial intelligence (AI). In some embodiments, for ease of description, nonlinear information processing methods are also referred to as first-type information processing methods, and linear information processing methods are also referred to as second-type information processing methods.

[0056] In some embodiments, CSI includes downlink channel state information and uplink channel state information, referred to as downlink channel state information and uplink channel state information, respectively.

[0057] In some embodiments, downlink channel state information includes, but is not limited to, at least one of the following: channel state information - reference signal resource indicator (CSI-RS resource indicator, CRI), synchronization signals block resource indicator (SSBRI), L1 reference signal received power (L1-RSRP), differential RSRP (differential L1-RSRP), L1 signal-to-interference noise ratio (L1-SINR), differential L1-SINR (differential L1-SINR), reference signal received quality (RSRQ), differential RSRQ, channel quality indicator (CQI), wideband CQI, subband CQI, precoding matrix indicator (PMI), layer indicator (LI), rank indicator (RI), precoding information, channel information, capability index, and time-domain channel properties (TDCP). In some embodiments, L1-RSRP or differential RSRP is collectively referred to as L1-RSRP, or simply RSRP. In some embodiments, L1-SINR or differential SINR is collectively referred to as L1-SINR, or simply SINR.

[0058] In some embodiments, the uplink channel state information includes, but is not limited to, at least one of the following: uplink sounding signal resource indicator (SRS resource indicator, SRI), uplink sounding signal resource set indicator (SRSI), transmitted precoding matrix indicator (TPMI), transmitted rank indicator (TRI), modulation and coding scheme (MCS), L1-RSRP, L1-SINR, and L1-RSRQ. Additionally, TPMI and TRI may be jointly coded, using precoding information and the number of layers (PINL) field from the DCI.

[0059] In some embodiments, CSI includes wideband CSI and subband CSI, where subband CSI refers to a different CSI corresponding to each subband. The CSI may include, but is not limited to, at least one of the following: CRI, RI, CQI, PMI, LI, L1-RSRP, L1-RSRQ, L1-SINR, SRI, TPMI, TRI, and MCS. For example, in one embodiment, CQI is divided into wideband CQI and subband CQI. In one embodiment, PMI is divided into wideband PMI and subband PMI. In one embodiment, RI is divided into wideband RI and subband RI. In one embodiment, MCS is divided into wideband MCS and subband MCS. In some embodiments, subband CQI may also be replaced with subband differential CQI. In some embodiments, wideband PMI may also be replaced with the PMI wideband information domain, and subband PMI may also be replaced with the PMI subband information domain.

[0060] Channel rank can also be replaced by one of the following concepts: layer, codeword, transport layer, rank, row / column, number of receive antennas, number of transmit antennas, number of reference signal ports, number of transmit ports, number of receive ports, etc. Further details will not be provided in other embodiments.

[0061] In some embodiments, transmitting CSI means transmitting the CSI over uplink transmission resources. In one embodiment, transmitting a CSI report means transmitting the content indicated in the CSI report, such as the CSI itself; this transmission includes sending or receiving. In some embodiments, sending a CSI report can also be replaced by sending a feedback CSI report, and sending CSI can also be replaced by sending feedback CSI.

[0062] In some embodiments, to transmit measurement results, such as channel state information, at the physical layer, the communication node needs to configure a report (e.g., a CSI report or CSI report configuration). This report defines at least one of the following parameters: time-frequency resources used to transmit the measurement results, report quantity, report time-domain type (reportConfigType), channel measurement resources, interference measurement resources, and measurement bandwidth. The report can be transmitted on uplink resources, including PUSCH and PUCCH, and the report time-domain type includes periodic reports (e.g., periodic CSI report, P-CSI), aperiodic reports (e.g., aperiodic CSI report, AP-CSI), and semi-persistent reports (e.g., semi-persistent CSI report, SP-CSI).

[0063] In some embodiments, P-CSI generally transmits a relatively small number of bits on PUCCH, while A-CSI transmits a larger number of bits on PUSCH, and SP-CSI can be transmitted on either PUSCH or PUCCH.

[0064] In some embodiments, P-CSI transmitted via PUCCH is generally configured using higher-layer signaling (Radio Resource Control, RRC), and SP-CSI transmitted via PUCCH is also configured, activated, or deactivated using higher-layer signaling (RRC and / or MAC CE). SP-CSI transmitted via PUSCH is activated or deactivated through physical layer signaling (Downlink control information, DCI). A-CSI is triggered by DCI. DCI is generally transmitted on the Physical Downlink Control Channel (PDCCH).

[0065] In some embodiments, the base station configures NC reports (e.g., CSI reports) for the terminal via higher-layer signaling and / or physical-layer signaling. Each report has an identifier (ID), called reportID. The terminal can select MC reports from the NC reports based on its computing or processing capabilities and the requirements of the base station. Based on uplink transmission resources, the terminal transmits at least one report from the MC reports, where NC and MC are positive integers, and MC <= NC.

[0066] In some embodiments, the antenna is a physical antenna. In some embodiments, the antenna is a logical antenna. In some embodiments, the port and antenna, antenna port, reference signal port, and pilot port are interchangeable. In some embodiments, the antenna is a transmitting antenna. In some embodiments, the antenna is a receiving antenna. In some embodiments, the antenna includes an antenna pair consisting of a transmitting antenna and a receiving antenna.

[0067] Currently, how to achieve high-precision CSI transmission without significantly increasing signaling overhead is a technical problem that urgently needs to be solved in related fields.

[0068] Based on this, this disclosure provides a method for transmitting information, including: acquiring information; transmitting information among N downlink control information; here, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, where N, N1, and N2 are positive integers, and N1 + N2 = N. In this way, information can be transmitted based on downlink control information of different levels, thereby achieving high-precision CSI transmission while avoiding a significant increase in signaling overhead.

[0069] Accordingly, this disclosure also provides a method for receiving information, including: receiving N downlink control information; here, the N downlink control information includes information, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, N, N1 and N2 are positive integers, and N1+N2=N.

[0070] The technical solutions provided by the embodiments of this disclosure can be applied to various mobile communication networks, including but not limited to third-generation mobile communication technology (3G), fourth-generation mobile communication technology (4G), fifth-generation mobile communication technology (5G), and future mobile communication networks, such as 6G and 7G. The network architecture may include network-side equipment (e.g., including but not limited to base stations) and receiving-side equipment (e.g., including but not limited to terminals). The first communication node and the second communication node can be either a base station or a terminal. The first communication node and the second communication node can be abbreviated as the first node and the second node, respectively. In one embodiment, the first communication node is a base station and the second communication node is a terminal. In another embodiment, the first communication node is a base station and the second communication node is a base station. In yet another embodiment, the first communication node is a terminal and the second communication node is a base station. In some embodiments, the communication node includes the first node and / or the second node. In some embodiments, the communication node can also be simply referred to as a node, and the node can be either the first node or the second node.

[0071] For example, taking a first communication node as a terminal and a second communication node as a base station, Figure 1 shows a schematic diagram of the architecture of a communication system according to some embodiments. This communication system includes a terminal 10 and a base station 20. There can be one or more terminals 10 and base stations 20; the number is not limited. Here, multiple base stations and multiple terminals can communicate with each other. Here, a base station can provide network services to terminals in one cell, or it can simultaneously provide network services to terminals in multiple cells.

[0072] Here, each base station includes multiple antennas, and each terminal may include one or more antennas.

[0073] Base station 20 provides wireless access service to terminal 10. One base station 20 provides at least one service coverage area (also known as a cell). Terminal 10 entering this area can communicate with base station 20 via wireless signals to receive the wireless access service provided by base station 20.

[0074] In some embodiments, terminal 10 can be a device with wireless transceiver capabilities, which can be deployed on land, such as indoors or outdoors; on water (such as on a ship); or in the air (such as on an airplane, balloon, satellite, or drone). The terminal can be a mobile phone, tablet, computer with wireless transceiver capabilities, virtual reality (VR) terminal, augmented reality (AR) terminal, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. The embodiments of this application do not limit the application scenario. A terminal may sometimes also be referred to as a user, user equipment (UE), UE unit, UE station, mobile station, mobile device, UE agent, or UE device, etc., and the embodiments of this application do not limit this.

[0075] In some embodiments, base station 20 may include various network-side devices such as macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (RISs), routers, wireless fidelity (WIFI) devices, or primary cells and secondary cells in various wireless systems.

[0076] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not limited. In addition to the devices shown in Figure 1, the communication system may also include other devices, such as relay nodes.

[0077] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.

[0078] The embodiments provided in this disclosure will now be described in detail with reference to the accompanying drawings.

[0079] As shown in Figure 2, this disclosure provides a method for sending information, the method including:

[0080] S101. Send information in N downlink control messages.

[0081] In some embodiments, before performing step S101, step S100, obtaining information, may also be performed.

[0082] In some embodiments, the information includes channel state information.

[0083] For example, the network device acquires channel state information and transmits this information through N downlink control messages. The terminal receives the N downlink control messages to obtain the information carried within them.

[0084] In one possible implementation, the channel state information includes one or more uplink channel state information.

[0085] For example, the channel state information includes one or more uplink wideband channel state information and one or more uplink subband channel state information. Thus, the terminal can transmit physical uplink shared channels or reference signals by receiving one or more uplink channel state information. For instance, the terminal can adjust relevant parameters such as transmit power based on the received uplink wideband channel state information to ensure effective signal transmission. Alternatively, the terminal can select appropriate subbands for data transmission based on the subband channel state information, thereby improving transmission efficiency and reliability. Furthermore, the terminal can also perform signal processing operations such as precoding and beamforming based on the received uplink channel state information.

[0086] In some embodiments, the information includes wideband uplink channel state information and / or subband uplink channel state information;

[0087] Here, the broadband uplink channel state information includes at least one of the following:

[0088] Broadband TPMI, SRI, Broadband RI, Broadband CQI, Broadband L1-RSRP, Broadband L1-SINR;

[0089] Here, the subband uplink channel state information includes at least one of the following:

[0090] Subband TPMI, subband SRI, subband RI, subband CQI, subband L1-RSRP, subband L1-SINR.

[0091] In another possible implementation, the channel state information includes one or more downlink channel state information.

[0092] For example, the channel state information includes one or more broadband downlink channel state information and one or more downlink subband channel state information. Thus, the terminal can use the received one or more downlink channel state information for transmission of physical downlink shared channels or reference signals. For instance, based on the broadband downlink channel state information, the terminal can adjust parameters such as receiver sensitivity or gain to ensure accurate reception of signals from network devices. Furthermore, the terminal can also perform signal processing operations such as channel estimation, equalization, and decoding based on the received downlink channel state information.

[0093] In some embodiments, the information includes broadband downlink channel state information and / or subband downlink channel state information;

[0094] Here, the broadband downlink channel state information includes at least one of the following:

[0095] Broadband RI, Broadband MCS;

[0096] Subband downlink channel state information includes at least one of the following:

[0097] Subband RI, subband MCS.

[0098] In some embodiments, the communication node transmits the type of information via downlink control information, where the type of information includes at least one of the following:

[0099] Subband Precoding Matrix Indicator (PMI), Subband Modulation and Coding Scheme (MCS), Subband Channel Quality Indicator (CQI), Subband SRI, Subband RI, Subband L1-RSRP, Subband L1-SINR, Subband TMPI, Wideband PMI, Wideband MCS, Wideband CQI, Wideband SRI, Wideband RI, Wideband L1-RSRP, Wideband L1-SINR, Wideband TMPI.

[0100] In one embodiment, the information types include: wideband CSI and subband CSI.

[0101] In some embodiments, information can be transmitted in N downlink control messages. The N downlink control messages include N1 first-level downlink control messages and N2 second-level downlink control messages, where N, N1, and N2 are positive integers, and N1 + N2 = N.

[0102] In some embodiments, a first-level downlink control information corresponds to at least one second-level downlink control information.

[0103] For example, one Level 1 downlink control message corresponds to one Level 2 downlink control message, in which case N1 = N2. Alternatively, one Level 1 downlink control message corresponds to multiple Level 2 downlink control messages, in which case N1 < N2.

[0104] For example, the aforementioned N downlink control information may include one first-level downlink control information and N-1 second-level downlink control information. That is, N1 = 1, N2 = N-1. For example, the aforementioned N downlink control information may include one first-level downlink control information and one second-level downlink control information.

[0105] In this disclosure, the N downlink control information can also be replaced by N downlink higher-layer signaling and / or physical layer signaling. For example, information can be transmitted in one higher-layer signaling and N-1 physical layer signaling. Here, the higher-layer signaling can be RRC or MAC CE. In other embodiments, the N downlink control information can also be replaced by N fields of one higher-layer signaling and / or physical layer signaling. For example, one field in one higher-layer signaling and N-1 fields in one physical layer signaling. Or, a first field and N-1 other fields in one physical layer signaling. Each field represents one physical layer signaling.

[0106] In some embodiments, the information may include one or more uplink channel status information.

[0107] In some embodiments, the first-level downlink control information includes one or more uplink wideband channel state information. The second-level downlink control information includes one or more uplink subband channel state information.

[0108] Here, the uplink wideband channel state information includes at least one of the following: a wideband TPMI, a wideband SRI, a wideband SRSI, one or two wideband MCS (e.g., one transport block corresponds to one MCS), one or more wideband L1-RSRP, one or more wideband L1-SINR, a wideband TRI, a wideband precoding information and layer number indication, and a wideband SRSI.

[0109] Here, the uplink subband channel state information includes at least one of the following: TPMI of one or more subbands, SRI of one or more subbands, SRSI of one or more subbands, MCS of one or more subbands, L1-RSRP of one or more subbands, L1-SINR of one or more subbands, TRI of one or more subbands, precoding information and layer number indication of one or more subbands, and SRSI of one or more subbands.

[0110] In some embodiments, the information may include one or more downlink channel state information.

[0111] In some embodiments, the first-level downlink control information includes one or more downlink wideband channel state information. The second-level downlink control information includes one or more downlink subband channel state information.

[0112] Here, the downlink wideband channel state information includes at least one of the following: a wideband RI, one or two wideband MCS (e.g., one MCS corresponding to one transport block), and a wideband antenna port indication.

[0113] Here, the downlink subband channel state information includes at least one of the following: RI of one or more subbands, MCS of one or more subbands, and antenna port indication of one or more subbands.

[0114] In one embodiment, the first-level downlink control information may also transmit one or more downlink subband channel state information.

[0115] In one embodiment, the first-level downlink control information may also transmit one or more uplink subband channel state information.

[0116] In one embodiment, the second-level downlink control information may also transmit one or more downlink broadband channel status information.

[0117] In one embodiment, the second-level downlink control information may also transmit one or more uplink broadband channel status information.

[0118] In some embodiments, first-level downlink control information is transmitted on a first transmission resource, and second-level downlink control information is transmitted on a second transmission resource.

[0119] In one possible implementation, both the first transmission resource and the second transmission resource are physical downlink control channels. For example, the first transmission resource is a first physical downlink control channel (PDCCH1), and the second transmission resource is a second physical downlink control channel (PDCCH2).

[0120] In some embodiments, the first transmission resource and the second transmission resource satisfy at least one of the following:

[0121] The search space set type corresponding to the first transmission resource is the same as the search space set type corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same search space type.

[0122] The detection period corresponding to the first transmission resource is the same as the detection period corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same search space configuration period.

[0123] The time slot offset corresponding to the first transmission resource is the same as the time slot offset corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same time slot offset configured in the search space.

[0124] The detection pattern corresponding to the first transmission resource is the same as the detection pattern corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same detection pattern.

[0125] The symbol position corresponding to the first transmission resource is the same as the symbol position corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same symbol position.

[0126] The detection timing of the physical downlink control channel corresponding to the first transmission resource is the same as the detection timing of the physical downlink control channel corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel have the same detection timing.

[0127] The search space set corresponding to the first transmission resource is the same as the search space set corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same search space set.

[0128] The downlink control information format corresponding to the first transmission resource is the same as the downlink control information format corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same downlink control information format.

[0129] The number of physical downlink control channel candidate sets corresponding to the first transmission resource is the same as the number of physical downlink control channel candidate sets corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same physical downlink control channel candidate set.

[0130] The search space set index corresponding to the first transmission resource is the same as the search space set index corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same search space set index.

[0131] The CORESET index of the control resource set corresponding to the first transmission resource is the same as the CORESET index of the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same control resource set CORESET index.

[0132] The downlink control information aggregation level corresponding to the first transmission resource is the same as the downlink control information aggregation level corresponding to the second transmission resource; for example, the first physical downlink control channel and the second physical downlink control channel correspond to the same downlink control information aggregation level.

[0133] In this disclosure, the offset may also be referred to as offset, bias, deviation value or other terms with the same or similar meanings, and this disclosure does not specifically limit it.

[0134] In some embodiments, the Duration of the search space configuration corresponding to the first transmission resource is the same as the Duration of the search space configuration corresponding to the second transmission resource.

[0135] In some embodiments, the first-level downlink control information includes a first field, which indicates at least one of the following for the second transport resource:

[0136] Search space set type, detection period configured in search space, time slot offset, detection pattern, symbol position, physical downlink control channel detection timing, search space set, downlink control information format, number of physical downlink control channel candidate sets, search space set index, CORESET index, downlink control information aggregation level.

[0137] For example, the above information about the second transmission resource can also be indicated by multiple fields, such as the first physical downlink control channel including at least one of the following fields:

[0138] For example, the first physical downlink control channel includes field 1, which indicates the search space type corresponding to the second physical downlink control channel.

[0139] For example, the first physical downlink control channel includes field 2, which is used to indicate the period of the search space configuration corresponding to the second physical downlink control channel.

[0140] For example, the first physical downlink control channel includes field 3, which is used to indicate the time slot offset of the search space configuration corresponding to the second physical downlink control channel.

[0141] For example, the first physical downlink control channel includes field 4, which is used to indicate the detection pattern of the search space configuration corresponding to the second physical downlink control channel.

[0142] For example, the first physical downlink control channel includes field 5, which is used to indicate the symbol position corresponding to the second physical downlink control channel.

[0143] For example, the first physical downlink control channel includes field 6, which is used to indicate the detection timing corresponding to the second physical downlink control channel.

[0144] For example, the first physical downlink control channel includes field 7, which is used to indicate the search space set corresponding to the second physical downlink control channel.

[0145] For example, the first physical downlink control channel includes field 8, which is used to indicate the downlink control information format corresponding to the second physical downlink control channel.

[0146] For example, the first physical downlink control channel includes field 9, which indicates the number of physical downlink control channel candidate sets corresponding to the second physical downlink control channel.

[0147] For example, the first physical downlink control channel includes field 10, which is used to indicate the search space set index of the second physical downlink control channel.

[0148] For example, the first physical downlink control channel includes field 11, which is used to indicate the CORESET index of the second physical downlink control channel.

[0149] For example, the first physical downlink control channel includes field 12, which is used to indicate the downlink control information aggregation level of the second physical downlink control channel.

[0150] For example, the first physical downlink control channel includes field 13, which is used to indicate whether the second physical downlink control channel exists.

[0151] In some embodiments, the first physical downlink control channel may further include a fourth field, which is used to indicate the parameter type transmitted by the second physical downlink control channel. Here, the parameter type includes one of the following: subband PMI, subband MCS, subband RI, CQI, subband SRI, subband RI, subband L1-RSRP, subband L1-SINR, subband TMPI, wideband PMI, wideband MCS, wideband CQI, wideband SRI, wideband RI, wideband L1-RSRP, wideband L1-SINR, wideband TMPI.

[0152] In some embodiments, the difference between the transmission time slot corresponding to the first transmission resource and the transmission time slot corresponding to the second transmission resource is greater than or equal to a first preset threshold value.

[0153] For example, the first physical downlink control channel and the second physical downlink control channel are in different PDCCH sets, and the time slot for transmitting the first physical downlink control channel and the time slot for transmitting the second physical downlink control channel are greater than a first preset threshold.

[0154] Alternatively, the first physical downlink control channel and the second physical downlink control channel correspond to different CORESETs, and the time slot for transmitting the first physical downlink control channel and the time slot for transmitting the second physical downlink control channel differ from the first preset threshold.

[0155] In another possible implementation, the first transmission resource is a physical downlink control channel (PDCCH1), and the second transmission resource is a physical downlink shared channel (PDSCH1). For example, the first transmission resource is a first physical downlink control channel (PDCCH1), and the second transmission resource is a first physical downlink shared channel (PDSCH1).

[0156] In some embodiments, the first-level downlink control information includes a second field, which is used to indicate configuration information of the second transmission resource.

[0157] In some embodiments, the configuration information of the second transport resource includes at least one of the following:

[0158] The type of transmission resource, the time domain information of the transmission resource, the frequency domain information of the transmission resource, the spatial domain information of the transmission resource, and the code domain information of the transmission resource.

[0159] In some embodiments, the second field is used to indicate an index of the configuration information of K second transmission resources, the configuration information of the K second transmission resources being configured by higher-layer signaling, that is, the second field can indicate one of the configuration information of the K second transmission resources.

[0160] In some embodiments, the first-level downlink control information includes a third field, which is used to indicate at least one of the following second-level downlink control information:

[0161] The magnitude of the Level 2 downlink control information, the timing of its detection, the indication of its presence, and the type of information.

[0162] For example, the above information can also be indicated by multiple fields, such as the first physical downlink control channel including at least one of the following fields:

[0163] For example, the first physical downlink control channel includes field 14, which is used to indicate the frequency domain resource allocation of the first physical downlink shared channel.

[0164] For example, the first physical downlink control channel includes field 15, which is used to indicate the modulation and coding scheme (MCS) of the first physical downlink shared channel.

[0165] For example, the first physical downlink control channel includes field 16, which is used to indicate the spatial information of the first physical downlink shared channel.

[0166] For example, the first physical downlink control channel includes field 17, which is used to indicate the code field information of the first physical downlink shared channel.

[0167] For example, the first physical downlink control channel includes field 18, which indicates the type of transmission resources for the second-level downlink control information. In some embodiments, the type of transmission resources for the second-level downlink control information includes a physical downlink shared channel and a physical downlink control channel. That is, the aforementioned first field can be used to indicate whether the second-level downlink control information is transmitted on the PDCCH or the PDSCH. In other embodiments, the type of transmission resources for the second-level DCI can also be indicated by higher-layer signaling and / or physical layer signaling. Here, the physical layer signaling is a physical layer signaling other than the first-level downlink control information.

[0168] For example, the first physical downlink control channel includes field 19, which is used to indicate the time-domain resource allocation of the first physical downlink shared channel.

[0169] In other embodiments, the first physical downlink control channel may also include other fields, which are used to indicate at least one of the following: the number of ports, redundancy version, etc. of the first physical downlink shared channel.

[0170] In these embodiments, the aforementioned fields in the first-level downlink control information may only contain one or more of them; not all of them necessarily exist. In some embodiments, multiple fields may be combined to indicate a joint parameter. Furthermore, the naming of the aforementioned fields is only for distinguishing different fields and does not have a sorting function.

[0171] In some embodiments, at least one broadband uplink channel state information may be transmitted in at least one first-level downlink control information; and at least one sub-band uplink channel state information may be transmitted in at least one second-level downlink control information.

[0172] In one example, if the second-level downlink control information detection fails, the physical uplink shared channel (PUSCH) is transmitted using the broadband uplink channel state information transmitted by the first-level downlink control information.

[0173] In some embodiments, the first-level downlink control information and the second-level downlink control information are transmitted through two different PDCCHs. The terminal successfully detects the first downlink control information, but fails to detect the second-level downlink control information. In this case, at least one sub-band uplink channel state information can be transmitted in at least one second-level downlink control information.

[0174] In some embodiments, transmitting the physical uplink shared channel using broadband channel state information transmitted with first-level downlink control information includes at least one of the following:

[0175] Broadband PMI transmission PUSCH using Level 1 downlink control information transmission;

[0176] PUSCH is transmitted in a polling manner using the sub-band PMI corresponding to the broadband PMI transmitted by the first-level downlink control information.

[0177] PUSCH is transmitted from a random PMI in the subband PMI corresponding to the broadband PMI that transmits first-level downlink control information.

[0178] PUSCH is transmitted via broadband SRI using first-level downlink control information transmission.

[0179] Broadband RI transmission of PUSCH using Level 1 downlink control information transmission;

[0180] PUSCH is transmitted via broadband CQI using Level 1 downlink control information transmission.

[0181] PUSCH is transmitted via a broadband MCS using first-level downlink control information.

[0182] In one example, the second-level downlink control information carries one or more sub-band TPMIs, and the terminal uses the wideband TPMI indicated by the first-level downlink control information to transmit the physical uplink shared channel. In other embodiments, the TPMI here can also be replaced with precoding information and layer number indication, and the physical uplink shared channel can be transmitted using wideband precoding information and layer number indication precoding information.

[0183] In another example, the second-level downlink control information carries one or more sub-band TPMIs. The terminal uses the precoding corresponding to the sub-band TPMI indicated by the first-level downlink control information to transmit each sub-band in a polling manner. In other embodiments, the TPMI here can also be replaced by precoding information and layer number indication, and the sub-band precoding information is selected in a polling manner from the multiple sub-band precoding information corresponding to the broadband precoding information and the layer number indication precoding information to transmit the physical uplink shared channel.

[0184] In another example, the second-level downlink control information carries one or more sub-band TPMIs. The terminal uses the multiple sub-band TPMIs corresponding to the wideband TPMI indicated by the first-level downlink control information, and randomly selects one of the sub-band TPMIs corresponding to the wideband TPMI as a sub-band TPMI. Each sub-band is then transmitted using the precoding corresponding to the randomly selected sub-band TPMI. In other embodiments, the TPMI here can also be replaced by precoding information and a layer number indicator, and the sub-band precoding information is randomly selected from the multiple sub-band precoding information corresponding to the wideband precoding information and the layer number indicator precoding information to transmit the physical uplink shared channel.

[0185] In some embodiments, TPMI in the above example can also be replaced by precoding information and layer number indication.

[0186] In one example, the second-level downlink control information carries one or more sub-band MCSs, and the terminal uses the wideband MCS indicated by the first-level downlink control information to transmit the physical uplink shared channel.

[0187] In another example, the second-level downlink control information carries one or more subband TRIs, and the terminal uses the wideband TRI indicated by the first-level downlink control information to transmit the physical uplink shared channel.

[0188] In another example, the Level 2 downlink control information carries the SRI of one or more subbands, and the terminal uses the wideband SRI indicated by the Level 1 downlink control information to transmit the physical uplink shared channel.

[0189] In some embodiments, the first-level downlink control information is used to indicate the absolute value of the bandwidth modulation and coding scheme, and the second-level downlink control information is used to indicate multiple sub-band modulation and coding schemes.

[0190] Here, the subband MCS is the difference between the subband MCS and the broadband MCS.

[0191] For example, Level 1 downlink control information and Level 2 downlink control information can be transmitted through two different PDCCHs. For instance, the Level 1 downlink control information includes L MCSs, where each transport block corresponds to one MCS. The Level 2 downlink control information includes C*L subband MCSs, where C is the number of subbands. For the i-th transport block, the MCS of its j-th subband is the differential MCS relative to the i-th MCS in the Level 1 downlink control information. Here, i = 1, ..., L, j = 1, ..., C. L and C are positive integers.

[0192] In one embodiment, the subband RI is a differential value based on the broadband RI.

[0193] In one embodiment, the subband CRI is a differential value based on the broadband CRI.

[0194] It should be noted that decomposing one or more channel state information (CSI) messages into multiple more easily transmittable parts and transmitting them separately in downlink control information at different levels is a method. The first-level control information can be used to transmit basic CSI (such as wideband CSI), while the second-level downlink control information is flexibly adjusted based on actual needs (such as transmitting subband CSI) to improve the accuracy and reliability of CSI transmission. Using higher-precision CSI for physical shared channel transmission improves overall transmission efficiency.

[0195] Furthermore, the content, quantity, and scheduling method of the first-level downlink control information and the second-level downlink control information can be dynamically adjusted according to the system load, control channel capacity, and channel state information accuracy requirements, thereby improving the flexibility of transmission.

[0196] In some embodiments, the first-level downlink control information and the second-level downlink control information are used to indicate the channel state information of different physical channels.

[0197] In one example, the first-level downlink control information is used to indicate the channel state information of the first physical downlink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical downlink shared channel.

[0198] For example, the first-level downlink control information is used to indicate the channel state information of the first PDSCH, and the second-level downlink control information is used to indicate the channel state information of the second PDSCH.

[0199] For example, the first PDSCH and the second PDSCH can satisfy at least one of the following:

[0200] The first PDSCH and the second PDSCH correspond to different layers.

[0201] The first PDSCH and the second PDSCH correspond to different transport blocks.

[0202] The first PDSCH and the second PDSCH correspond to different codewords.

[0203] The first PDSCH and the second PDSCH correspond to different TRPs.

[0204] The first PDSCH and the second PDSCH correspond to different bandwidth parts (BWP).

[0205] The first PDSCH and the second PDSCH correspond to different carrier components (CC).

[0206] In another example, the first-level downlink control information is used to indicate the channel state information of the first physical uplink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical uplink shared channel.

[0207] For example, the first-level downlink control information is used to indicate the channel state information of the first PDSCH, and the second-level downlink control information is used to indicate the channel state information of the second PDSCH.

[0208] For example, the first PUSCH and the second PUSCH can satisfy at least one of the following:

[0209] The first PUSCH and the second PUSCH correspond to different layers.

[0210] The first PUSCH and the second PUSCH correspond to different transport blocks.

[0211] The first PUSCH and the second PUSCH correspond to different codewords.

[0212] The first PUSCH and the second PUSCH correspond to different TRPs.

[0213] The first PUSCH and the second PUSCH correspond to different bandwidth parts (BWP).

[0214] The first PUSCH and the second PUSCH correspond to different carrier components (CC).

[0215] In some embodiments, the multiple CCs mentioned above may come from the same TRP or from multiple different TRPs. Similarly, in some embodiments, the multiple BWPs may come from the same TRP or from multiple different BWPs.

[0216] Based on the technical solution provided in this disclosure, one or more channel state information (CSI) components can be decomposed into multiple more easily transmitted parts, which are then transmitted in downlink control information at different levels. Here, the first-level control information can be used to transmit basic channel state information (such as wideband CSI), and the second-level downlink control information can be flexibly adjusted based on actual needs (such as transmitting subband CSI) to improve the accuracy and reliability of CSI transmission. Using higher-precision CSI for physical shared channel transmission improves overall transmission efficiency.

[0217] In some embodiments, this disclosure also provides a method for receiving information, as shown in FIG3, including:

[0218] S201. Receive N downlink control information; here, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, where N, N1, and N2 are positive integers, and N1 + N2 = N.

[0219] In some embodiments, a first-level downlink control information corresponds to at least one second-level downlink control information.

[0220] In some embodiments, first-level downlink control information is transmitted on a first transmission resource, and second-level downlink control information is transmitted on a second transmission resource.

[0221] In some embodiments, both the first transmission resource and the second transmission resource are physical downlink control channels.

[0222] In some embodiments, the first transmission resource and the second transmission resource satisfy at least one of the following:

[0223] The search space set type corresponding to the first transmission resource is the same as the search space set type corresponding to the second transmission resource;

[0224] The detection period for the first transmission resource is the same as the detection period for the second transmission resource.

[0225] The time slot offset corresponding to the first transmission resource is the same as the time slot offset corresponding to the second transmission resource;

[0226] The detection pattern corresponding to the first transmission resource is the same as the detection pattern corresponding to the second transmission resource;

[0227] The symbol position corresponding to the first transmission resource is the same as the symbol position corresponding to the second transmission resource;

[0228] The timing of physical downlink control channel detection for the first transmission resource is the same as the timing of physical downlink control channel detection for the second transmission resource.

[0229] The search space set corresponding to the first transmission resource is the same as the search space set corresponding to the second transmission resource;

[0230] The downlink control information format corresponding to the first transmission resource is the same as the downlink control information format corresponding to the second transmission resource.

[0231] The number of physical downlink control channel candidate sets corresponding to the first transmission resource is the same as the number of physical downlink control channel candidate sets corresponding to the second transmission resource;

[0232] The search space set index corresponding to the first transmission resource is the same as the search space set index corresponding to the second transmission resource;

[0233] The CORESET index of the control resource set corresponding to the first transmission resource is the same as the CORESET index of the second transmission resource.

[0234] The downlink control information aggregation level corresponding to the first transmission resource is the same as the downlink control information aggregation level corresponding to the second transmission resource.

[0235] In some embodiments, the first-level downlink control information includes a first field, which indicates at least one of the following for the second transport resource:

[0236] Search space set type, detection period configured in search space, time slot offset, detection pattern, symbol position, physical downlink control channel detection timing, search space set, downlink control information format, number of physical downlink control channel candidate sets, search space set index, CORESET index, downlink control information aggregation level.

[0237] In some embodiments, the difference between the transmission time slot corresponding to the first transmission resource and the transmission time slot corresponding to the second transmission resource is greater than or equal to a first preset threshold value.

[0238] In some embodiments, the first transmission resource is a physical downlink control channel, and the second transmission resource is a physical downlink shared channel.

[0239] In some embodiments, the first-level downlink control information includes a second field, which is used to indicate configuration information of the second transmission resource.

[0240] In some embodiments, the configuration information of the second transport resource includes at least one of the following:

[0241] The type of transmission resource, the time domain information of the transmission resource, the frequency domain information of the transmission resource, the spatial domain information of the transmission resource, and the code domain information of the transmission resource.

[0242] In some embodiments, the second field is used to indicate an index of the configuration information of K second transmission resources, that is, the second field can indicate one of the configuration information of K second transmission resources, and the configuration information of K second transmission resources is configured by higher-layer signaling.

[0243] In some embodiments, the first-level downlink control information includes a third field, which is used to indicate at least one of the following second-level downlink control information:

[0244] The magnitude of the Level 2 downlink control information, the timing of its detection, the indication of its presence, and the type of information.

[0245] In some embodiments, the type information of the information includes at least one of the following:

[0246] Subband Precoding Matrix Indicator (PMI), Subband Modulation and Coding Scheme (MCS), Subband Channel Quality Indicator (CQI), Subband SRI, Subband RI, Subband L1-RSRP, Subband L1-SINR, Subband TMPI, Wideband PMI, Wideband MCS, Wideband CQI, Wideband SRI, Wideband RI, Wideband L1-RSRP, Wideband L1-SINR, Wideband TMPI.

[0247] In some embodiments, the information includes wideband uplink channel state information and / or subband uplink channel state information;

[0248] Here, the broadband uplink channel state information includes at least one of the following:

[0249] Broadband TPMI, SRI, Broadband RI, Broadband CQI, Broadband L1-RSRP, Broadband L1-SINR;

[0250] Here, the subband uplink channel state information includes at least one of the following:

[0251] Subband TPMI, subband SRI, subband RI, subband CQI, subband L1-RSRP, subband L1-SINR.

[0252] In some embodiments, the information includes broadband downlink channel state information and / or subband downlink channel state information;

[0253] Here, the broadband downlink channel state information includes at least one of the following:

[0254] Broadband RI, Broadband MCS;

[0255] Subband downlink channel state information includes at least one of the following:

[0256] Subband RI, subband MCS.

[0257] In some embodiments, receiving information among N downlink control messages includes:

[0258] Receive at least one broadband uplink channel state information in at least one first-level downlink control information;

[0259] At least one sub-band uplink channel state information is received in at least one second-level downlink control message.

[0260] In some embodiments, if the second-level downlink control information detection fails, the PUSCH is transmitted using the broadband CSI transmitted from the received first-level downlink control information.

[0261] In some embodiments, the physical uplink shared channel transmitted using broadband channel state information transmitted with first-level downlink control information includes at least one of the following:

[0262] Broadband PMI transmission PUSCH using Level 1 downlink control information transmission;

[0263] PUSCH is transmitted in a polling manner using the sub-band PMI corresponding to the broadband PMI transmitted by the first-level downlink control information.

[0264] PUSCH is transmitted from a random PMI in the subband PMI corresponding to the broadband PMI that transmits first-level downlink control information.

[0265] PUSCH is transmitted via broadband SRI using first-level downlink control information transmission.

[0266] Broadband RI transmission of PUSCH using Level 1 downlink control information transmission;

[0267] PUSCH is transmitted via broadband CQI using Level 1 downlink control information transmission.

[0268] PUSCH is transmitted via a broadband MCS using first-level downlink control information.

[0269] In some embodiments, the first-level downlink control information is used to indicate the absolute value of the bandwidth modulation and coding scheme, and the second-level downlink control information is used to indicate multiple sub-band modulation and coding schemes, where the sub-band MCS is the difference value relative to the bandwidth MCS.

[0270] In some embodiments, the first-level downlink control information and the second-level downlink control information are used to indicate the channel state information of different physical channels.

[0271] In some embodiments, the first-level downlink control information is used to indicate the channel state information of the first physical downlink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical downlink shared channel.

[0272] In some embodiments, the first-level downlink control information is used to indicate the channel state information of the first physical uplink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical uplink shared channel.

[0273] Furthermore, for a detailed description of step S201, please refer to the relevant description of the embodiment shown in Figure 2 above, which will not be repeated here.

[0274] Based on the above embodiments, one or more channel state information (CSI) can be decomposed into multiple more easily transmitted parts, which are then transmitted in downlink control information at different levels. Here, the first-level control information can be used to transmit basic channel state information (such as wideband CSI), and the second-level downlink control information can be flexibly adjusted based on actual needs (such as transmitting subband CSI) to improve the accuracy and reliability of CSI transmission. Using higher-precision CSI for physical shared channel transmission improves overall transmission efficiency.

[0275] The foregoing primarily describes the solution provided in this disclosure from the perspective of interaction between various communication nodes. It is understood that each communication node, in order to achieve the aforementioned functions, includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments disclosed herein, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0276] Figure 4 is a block diagram of a communication device according to some embodiments. As shown in Figure 4, the communication device 40 includes a transmitting module 401. In some embodiments, it may also include an acquiring module 402.

[0277] Here, the sending module 401 is used to send the information in N downlink control information; here, the N downlink control information includes N1 first-level downlink control information and N2 second-level downlink control information, where N, N1, and N2 are positive integers, and N1 + N2 = N.

[0278] In some embodiments, the acquisition module 402 is used to acquire information;

[0279] In some embodiments, a first-level downlink control information corresponds to at least one second-level downlink control information.

[0280] In some embodiments, first-level downlink control information is transmitted on a first transmission resource, and second-level downlink control information is transmitted on a second transmission resource.

[0281] In some embodiments, both the first transmission resource and the second transmission resource are physical downlink control channels.

[0282] In some embodiments, the first transmission resource and the second transmission resource satisfy at least one of the following:

[0283] The search space set type corresponding to the first transmission resource is the same as the search space set type corresponding to the second transmission resource;

[0284] The detection period for the first transmission resource is the same as the detection period for the second transmission resource.

[0285] The time slot offset corresponding to the first transmission resource is the same as the time slot offset corresponding to the second transmission resource;

[0286] The detection pattern corresponding to the first transmission resource is the same as the detection pattern corresponding to the second transmission resource;

[0287] The symbol position corresponding to the first transmission resource is the same as the symbol position corresponding to the second transmission resource;

[0288] The timing of physical downlink control channel detection for the first transmission resource is the same as the timing of physical downlink control channel detection for the second transmission resource.

[0289] The search space set corresponding to the first transmission resource is the same as the search space set corresponding to the second transmission resource;

[0290] The downlink control information format corresponding to the first transmission resource is the same as the downlink control information format corresponding to the second transmission resource.

[0291] The number of physical downlink control channel candidate sets corresponding to the first transmission resource is the same as the number of physical downlink control channel candidate sets corresponding to the second transmission resource;

[0292] The search space set index corresponding to the first transmission resource is the same as the search space set index corresponding to the second transmission resource;

[0293] The CORESET index of the control resource set corresponding to the first transmission resource is the same as the CORESET index of the second transmission resource.

[0294] The downlink control information aggregation level corresponding to the first transmission resource is the same as the downlink control information aggregation level corresponding to the second transmission resource.

[0295] In some embodiments, the first-level downlink control information includes a first field, which indicates at least one of the following for the second transport resource:

[0296] Search space set type, detection period configured in search space, time slot offset, detection pattern, symbol position, physical downlink control channel detection timing, search space set, downlink control information format, number of physical downlink control channel candidate sets, search space set index, CORESET index, downlink control information aggregation level.

[0297] In some embodiments, the difference between the transmission time slot corresponding to the first transmission resource and the transmission time slot corresponding to the second transmission resource is greater than or equal to a first preset threshold value.

[0298] In some embodiments, the first transmission resource is a physical downlink control channel, and the second transmission resource is a physical downlink shared channel.

[0299] In some embodiments, the first-level downlink control information includes a second field, which is used to indicate configuration information of the second transmission resource.

[0300] In some embodiments, the configuration information of the second transport resource includes at least one of the following:

[0301] The type of transmission resource, the time domain information of the transmission resource, the frequency domain information of the transmission resource, the spatial domain information of the transmission resource, and the code domain information of the transmission resource.

[0302] In some embodiments, the second field is used to indicate an index of the configuration information of K second transport resources, the configuration information of which is configured via higher-layer signaling.

[0303] In some embodiments, the first-level downlink control information includes a third field, which is used to indicate at least one of the following second-level downlink control information:

[0304] The magnitude of the Level 2 downlink control information, the timing of its detection, the indication of its presence, and the type of information.

[0305] In some embodiments, the type information of the information includes at least one of the following:

[0306] Subband Precoding Matrix Indicator (PMI), Subband Modulation and Coding Scheme (MCS), Subband Channel Quality Indicator (CQI), Subband SRI, Subband RI, Subband L1-RSRP, Subband L1-SINR, Subband TMPI, Wideband PMI, Wideband MCS, Wideband CQI, Wideband SRI, Wideband RI, Wideband L1-RSRP, Wideband L1-SINR, Wideband TMPI.

[0307] In some embodiments, the information includes wideband uplink channel state information and / or subband uplink channel state information;

[0308] Here, the broadband uplink channel state information includes at least one of the following:

[0309] Broadband TPMI, SRI, Broadband RI, Broadband CQI, Broadband L1-RSRP, Broadband L1-SINR;

[0310] Here, the subband uplink channel state information includes at least one of the following:

[0311] Subband TPMI, subband SRI, subband RI, subband CQI, subband L1-RSRP, subband L1-SINR.

[0312] In some embodiments, the information includes broadband downlink channel state information and / or subband downlink channel state information;

[0313] Here, the broadband downlink channel state information includes at least one of the following:

[0314] Broadband RI, Broadband MCS;

[0315] Subband downlink channel state information includes at least one of the following:

[0316] Subband RI, subband MCS.

[0317] In some embodiments, the sending module 401 is specifically used for:

[0318] At least one broadband uplink channel status information is transmitted in at least one first-level downlink control information;

[0319] At least one sub-band uplink channel status information is transmitted in at least one second-level downlink control message.

[0320] In some embodiments, the sending module 401 is specifically used to: transmit the Physical Uplink Shared Channel (PUSCH) using the broadband uplink channel status information transmitted by the first-level downlink control information in the event of a failure of the second-level downlink control information detection.

[0321] In some embodiments, transmitting the physical uplink shared channel using the broadband uplink channel state information transmitted with the first-level downlink control information includes at least one of the following:

[0322] Broadband PMI transmission PUSCH using Level 1 downlink control information transmission;

[0323] PUSCH is transmitted in a polling manner using the sub-band PMI corresponding to the broadband PMI transmitted by the first-level downlink control information.

[0324] PUSCH is transmitted from a random PMI in the subband PMI corresponding to the broadband PMI that transmits first-level downlink control information.

[0325] PUSCH is transmitted via broadband SRI using first-level downlink control information transmission.

[0326] Broadband RI transmission of PUSCH using Level 1 downlink control information transmission;

[0327] PUSCH is transmitted via broadband CQI using Level 1 downlink control information transmission.

[0328] PUSCH is transmitted via a broadband MCS using first-level downlink control information.

[0329] In some embodiments, the first-level downlink control information is used to indicate the absolute value of the bandwidth modulation and coding scheme, and the second-level downlink control information is used to indicate multiple sub-band modulation and coding schemes, where the sub-band MCS is the difference value relative to the bandwidth MCS.

[0330] In some embodiments, the first-level downlink control information and the second-level downlink control information are used to indicate the channel state information of different physical channels.

[0331] In some embodiments, the first-level downlink control information is used to indicate the channel state information of the first physical downlink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical downlink shared channel.

[0332] In some embodiments, the first-level downlink control information is used to indicate the channel state information of the first physical uplink shared channel, and the second-level downlink control information is used to indicate the channel state information of the second physical uplink shared channel.

[0333] For a more detailed description of the sending module 401, the acquiring module 402, and the various technical features thereof, as well as the description of their beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0334] Figure 5 is a block diagram of another communication device according to some embodiments. As shown in Figure 5, the communication device 50 includes a receiving module 501.

[0335] Here, the receiving module 501 is used to receive N downlink control information; here, the N downlink control information includes information, including N1 first-level downlink control information and N2 second-level downlink control information, where N, N1, and N2 are positive integers, and N1+N2=N.

[0336] In some embodiments, first-level downlink control information is transmitted on a first transmission resource, and second-level downlink control information is transmitted on a second transmission resource.

[0337] In some embodiments, both the first transmission resource and the second transmission resource are physical downlink control channels.

[0338] In some embodiments, the first transmission resource is a physical downlink control channel, and the second transmission resource is a physical downlink shared channel.

[0339] In some embodiments, the first-level downlink control information includes a third field, which is used to indicate at least one of the following second-level downlink control information:

[0340] The magnitude of the Level 2 downlink control information, the timing of its detection, the indication of its presence, and the type of information.

[0341] In some embodiments, the receiving module 501 is further configured to: receive the PUSCH transmitted by the broadband uplink channel state information transmitted by the first-level downlink control information in the event of a failure of the second-level downlink control information detection.

[0342] In some embodiments, the PUSCH transmitted using first-level downlink control information includes at least one of the following:

[0343] Broadband PMI transmission PUSCH using Level 1 downlink control information transmission;

[0344] PUSCH is transmitted in a polling manner using the sub-band PMI corresponding to the broadband PMI transmitted by the first-level downlink control information.

[0345] PUSCH is transmitted from a random PMI in the subband PMI corresponding to the broadband PMI that transmits first-level downlink control information.

[0346] PUSCH is transmitted via broadband SRI using first-level downlink control information transmission.

[0347] Broadband RI transmission of PUSCH using Level 1 downlink control information transmission;

[0348] PUSCH is transmitted via broadband CQI using Level 1 downlink control information transmission.

[0349] PUSCH is transmitted via a broadband MCS using first-level downlink control information.

[0350] For a more detailed description of the receiving module 501, its various technical features, and its beneficial effects, please refer to the corresponding method embodiment section above, which will not be repeated here.

[0351] It should be noted that the modules in Figure 4 or Figure 5 can also be called units; for example, the transmitting module can be called a transmitting unit. Furthermore, in the embodiments shown in Figure 4 or Figure 5, the names of the modules may not be those shown in the figures; for example, the transmitting module can also be called a communication module, and the receiving module can also be called a communication module.

[0352] If the units or modules in Figure 4 or Figure 5 are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this disclosure, in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this disclosure. Storage media for storing computer software products include: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0353] When the functions of the integrated modules described above are implemented in hardware, this disclosure provides a block diagram of a communication device, which may be the communication device 40 or the communication device 50 described above. As shown in FIG6, the communication device 60 includes: a processor 602, a communication interface 603, and a bus 604. In some embodiments, the communication device 60 may further include a memory 601.

[0354] Processor 602 may implement or execute various exemplary logic blocks, modules, and circuits described in connection with this disclosure. Processor 602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in connection with this disclosure. Processor 602 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a digital signal processor (DSP), and a microprocessor.

[0355] Communication interface 603 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0356] The memory 601 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0357] In one possible implementation, the memory 601 can exist independently of the processor 602. The memory 601 can be connected to the processor 602 via a bus 604 and is used to store instructions or program code. When the processor 602 calls and executes the instructions or program code stored in the memory 601, it can implement the methods provided in the embodiments of this disclosure.

[0358] In another possible implementation, the memory 601 can also be integrated with the processor 602.

[0359] Bus 604 can be an extended industry standard architecture (EISA) bus, etc. Bus 604 can be divided into address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used to represent it in Figure 6, but this does not mean that there is only one bus or one type of bus.

[0360] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment or device can be divided into different functional modules to complete all or part of the functions described above.

[0361] This disclosure also provides a computer-readable storage medium, which includes a non-transitory computer-readable storage medium storing computer instructions. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the above computer-readable storage medium, and when executed, the program can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The above computer-readable storage medium can also be an external storage device of the above device or apparatus, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the above device or apparatus. Further, the above computer-readable storage medium can also include both internal storage units of the above device or apparatus and external storage devices. The above computer-readable storage medium is used to store the above computer program and other programs and data required by the above device or apparatus. The above computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0362] This disclosure also provides a computer program product comprising a computer program that, when run on a computer, causes the computer to perform any of the methods provided in the above embodiments.

[0363] Although this disclosure has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed disclosure. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce a good effect.

[0364] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

[0365] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for sending information, wherein, The method includes: Information is transmitted in N downlink control messages; the N downlink control messages include N1 first-level downlink control messages and N2 second-level downlink control messages, where N, N1, and N2 are positive integers, and N1 + N2 = N.

2. The method according to claim 1, wherein, One first-level downlink control message corresponds to at least one second-level downlink control message.

3. The method according to claim 1 or 2, wherein, The first-level downlink control information is transmitted on the first transmission resource, and the second-level downlink control information is transmitted on the second transmission resource.

4. The method according to claim 3, wherein, Both the first transmission resource and the second transmission resource are physical downlink control channels.

5. The method according to claim 4, wherein, The first transmission resource and the second transmission resource satisfy at least one of the following: The search space set type corresponding to the first transmission resource is the same as the search space set type corresponding to the second transmission resource; The detection period corresponding to the first transmission resource is the same as the detection period corresponding to the second transmission resource; The time slot offset corresponding to the first transmission resource is the same as the time slot offset corresponding to the second transmission resource; The detection pattern corresponding to the first transmission resource is the same as the detection pattern corresponding to the second transmission resource; The symbol position corresponding to the first transmission resource is the same as the symbol position corresponding to the second transmission resource; The timing of physical downlink control channel detection for the first transmission resource is the same as the timing of physical downlink control channel detection for the second transmission resource. The search space set corresponding to the first transmission resource is the same as the search space set corresponding to the second transmission resource; The downlink control information format corresponding to the first transmission resource is the same as the downlink control information format corresponding to the second transmission resource; The number of physical downlink control channel candidate sets corresponding to the first transmission resource is the same as the number of physical downlink control channel candidate sets corresponding to the second transmission resource; The search space set index corresponding to the first transmission resource is the same as the search space set index corresponding to the second transmission resource; The CORESET index of the control resource set corresponding to the first transmission resource is the same as the CORESET index corresponding to the second transmission resource; The downlink control information aggregation level corresponding to the first transmission resource is the same as the downlink control information aggregation level corresponding to the second transmission resource.

6. The method according to claim 4 or 5, wherein, The first-level downlink control information includes a first field, which indicates at least one of the following for the second transmission resource: Search space set type, detection period configured in search space, time slot offset, detection pattern, symbol position, physical downlink control channel detection timing, search space set, downlink control information format, number of physical downlink control channel candidate sets, search space set index, CORESET index, downlink control information aggregation level.

7. The method according to any one of claims 4-6, wherein, The difference between the transmission time slot corresponding to the first transmission resource and the transmission time slot corresponding to the second transmission resource is greater than or equal to the first preset threshold value.

8. The method according to claim 3, wherein, The first transmission resource is the physical downlink control channel, and the second transmission resource is the physical downlink shared channel.

9. The method according to claim 4, wherein, The first-level downlink control information includes a second field, which is used to indicate the configuration information of the second transmission resource.

10. The method according to claim 9, wherein, The configuration information of the second transmission resource includes at least one of the following: The type of transmission resource, the time domain information of the transmission resource, the frequency domain information of the transmission resource, the spatial domain information of the transmission resource, and the code domain information of the transmission resource.

11. The method according to claim 9 or 10, wherein, The second field is used to indicate the index of the configuration information of K second transmission resources, which are configured through higher-layer signaling.

12. The method according to claim 2, wherein, The first-level downlink control information includes a third field, which is used to indicate at least one of the following in the second-level downlink control information: The magnitude of the second-level downlink control information, the detection timing of the second-level downlink control information, the indication of the existence of the second-level downlink control information, and the type of the information.

13. The method according to claim 12, wherein, The type of information includes at least one of the following: Subband Precoding Matrix Indicator (PMI), Subband Modulation and Coding Scheme (MCS), Subband Channel Quality Indicator (CQI), Subband SRI, Subband RI, Subband L1-RSRP, Subband L1-SINR, Subband TMPI, Wideband PMI, Wideband MCS, Wideband CQI, Wideband SRI, Wideband RI, Wideband L1-RSRP, Wideband L1-SINR, Wideband TMPI.

14. The method according to any one of claims 1-13, wherein, The information includes broadband uplink channel status information and / or subband uplink channel status information; The broadband uplink channel state information includes at least one of the following: Broadband Transport Precoding Matrix Indicator (TPMI), Broadband Sounding Resource Indicator (SRI), Broadband Rank Indicator (RI), Broadband Channel Quality Indicator (CQI), Broadband Layer 1 Reference Signal Received Power (L1-RSRP), and Broadband L1-SINR. The subband uplink channel state information includes at least one of the following: Subband TPMI, subband SRI, subband RI, subband CQI, subband L1-RSRP, subband L1-SINR.

15. The method according to claim 14, wherein, Sending the information in N downlink control messages includes: At least one of the broadband uplink channel status information is transmitted in at least one first-level downlink control information; At least one of the sub-band uplink channel state information is transmitted in at least one second-level downlink control information.

16. The method according to claim 15, wherein, The method further includes: In the event of failure of the second-level downlink control information detection, the physical uplink shared channel (PUSCH) is transmitted using the broadband uplink channel status information transmitted by the first-level downlink control information.

17. The method according to claim 16, wherein, The transmission of the broadband uplink channel state information using the first-level downlink control information to the physical uplink shared channel includes at least one of the following: The PUSCH is transmitted via a broadband PMI using first-level downlink control information transmission; The PUSCH is transmitted in a polling manner using the sub-band PMI corresponding to the broadband PMI transmitted by the first-level downlink control information. The PUSCH is transmitted using a random PMI from the sub-band PMI corresponding to the broadband PMI that transmits first-level downlink control information. The PUSCH is transmitted via a wideband SRI using first-level downlink control information transmission; The PUSCH is transmitted via a wideband RI using first-level downlink control information transmission; The PUSCH is transmitted using broadband CQI with first-level downlink control information transmission; The PUSCH is transmitted via a broadband MCS that transmits first-level downlink control information.

18. The method according to any one of claims 1-13, wherein, The information includes broadband downlink channel state information and / or subband downlink channel state information; The broadband downlink channel state information includes at least one of the following: Broadband RI, Broadband MCS; The subband downlink channel state information includes at least one of the following: Subband RI, subband MCS.

19. The method according to claim 18, wherein, The first-level downlink control information is used to indicate the absolute value of the bandwidth modulation and coding scheme, and the second-level downlink control information is used to indicate multiple sub-band modulation and coding schemes, where the sub-band MCS is the difference value relative to the bandwidth MCS.

20. The method according to claim 1, wherein, The first-level downlink control information and the second-level downlink control information are used to indicate the channel state information of different physical channels.

21. A method for receiving information, wherein, The method includes: Receive N downlink control information; the N downlink control information includes information, including N1 first-level downlink control information and N2 second-level downlink control information, where N, N1, and N2 are positive integers, and N1 + N2 = N.

22. The method according to claim 21, wherein, The first-level downlink control information is transmitted on the first transmission resource, and the second-level downlink control information is transmitted on the second transmission resource.

23. The method according to claim 22, wherein, Both the first transmission resource and the second transmission resource are physical downlink control channels.

24. The method according to claim 22 or 23, wherein, The first transmission resource is the physical downlink control channel, and the second transmission resource is the physical downlink shared channel.

25. A communication device, wherein, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1 to 24.

26. A computer-readable storage medium, wherein, The computer-readable storage medium includes a non-transitory computer-readable storage medium on which computer instructions are stored, which, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 24.

27. A computer program product, wherein, The computer program product includes computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 24.

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