Method and apparatus in node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. A first node receives a first DCI, the first DCI indicating a first cell set; sending the target signal; the first cell set comprises K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest service cell identifier in the cells except the first type of cells in the first cell set is used for determining the target signal; the first type of cells comprise symbols which are used for uplink transmission and are indicated as downlink by TDD uplink and downlink configuration. According to the invention, the problem of partial domain interpretation in the PDCCH when the same PDCCH schedules a plurality of carriers at the same time in an SBFD scene is solved, so that the signaling overhead is reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] This application relates to transmission methods and apparatuses in a wireless communication system, and particularly to methods and apparatuses for multi-carrier communication in a wireless communication system supporting a cellular network. Background Art

[0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios pose different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, it was decided at the 72nd plenary session of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) to conduct research on the new air interface technology (NR, New Radio) (or 5G). At the 75th plenary session of 3GPP RAN, the WI (Work Item) of the NR technology was adopted, and the standardization work of NR began.

[0003] In the existing NR system, the spectrum resources are statically divided into FDD (Frequency Division Duplexing) spectrum and TDD (Time Division Duplexing) spectrum. For the TDD spectrum, both the base station and the UE (User Equipment) operate in a half-duplex mode. This half-duplex mode avoids self-interference and can mitigate the impact of cross-link interference (CLI), but it also brings problems such as a decrease in resource utilization and an increase in latency. To address these problems, it becomes a possible solution to support a flexible duplex mode or variable link directions (uplink or downlink or flexible) on the TDD spectrum or FDD spectrum. In the 3GPP RAN#88e meeting and the 3GPP Rel-18 (Release-18) workshop, support for a more flexible duplex mode or full-duplex mode in NR Rel-18 has received extensive attention and discussion, especially the sub-band non-overlapping full-duplex (SBFD) mode at the gNB (NR Node B) side. Communication in this mode is severely interfered with, including self-interference and CLI. To solve the interference problem, advanced interference cancellation techniques need to be adopted, including antenna isolation, beamforming, RF (Radio Frequency) - level interference cancellation, and digital interference cancellation.

[0004] In NR, multi-carrier technologies (including carrier aggregation, dual connectivity, etc.) are important components. To adapt to diverse application scenarios and meet different requirements, 3GPP has been evolving multi-carrier technologies since Rel-15. Summary of the Invention

[0005] During the multi-carrier communication process, such as in Carrier Aggregation (CA), the system supports cross-carrier scheduling. In networks supported by existing standards, such as 5G NR in R17 and earlier versions, for multiple scheduled carriers, only scheduling on the respective corresponding carriers or the corresponding PDCCH (Physical Downlink Control CHannel) is supported, and scheduling through the same PDCCH on the same carrier is not supported. In the relevant discussions of Rel-18, the topic of multi-carrier enhancement began to be discussed. Under this topic, a PDCCH can simultaneously schedule data channels located on multiple carriers to improve overall performance.

[0006] Regarding the problem of a single PDCCH simultaneously scheduling multiple carriers in the multi-carrier system of NR, this application discloses a solution. It should be noted that although the original intention of this application is for the SBFD scenario, this application can also be applied to other non-SBFD scenarios; further, adopting a unified design solution for different scenarios (such as other non-SBFD scenarios, including but not limited to capacity enhancement systems, short-range communication systems, unlicensed spectrum communication, IoT (Internet of Things), URLLC (UltraReliable Low Latency Communication) networks, vehicle-to-everything networks, etc.) helps to reduce hardware complexity and cost. Without conflict, the embodiments and features in any node of this application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other arbitrarily.

[0007] In particular, the explanations of the terms, nouns, functions, and variables in this application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols of the TS38 series and TS37 series. If necessary, 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, TS38.423 can be referred to to assist in the understanding of this application.

[0008] As an embodiment, the interpretation of the terms in this application refers to the definitions in the 3GPP specification protocol series TS38.

[0009] As an embodiment, the interpretation of the terms in this application refers to the definitions in the 3GPP specification protocol series TS37.

[0010] This application discloses a method in a first node for wireless communication, which includes:

[0011] Receiving a first DCI, where the first DCI indicates a first cell set;

[0012] Sending a target signal;

[0013] Among them, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols configured for uplink transmission and indicated as downlink by the TDD uplink-downlink configuration.

[0014] As an embodiment, the problems to be solved by this application include: in the SBFD scenario, when the first DCI schedules multiple cells, how the first node sends the target signal.

[0015] As an embodiment, the problems to be solved by this application include: in the SBFD scenario, when the first DCI schedules multiple cells, the interpretation of some fields in the first DCI.

[0016] As an embodiment, the characteristics of the above method include: this application solves the above problems by relying on the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set for the target signal.

[0017] As an embodiment, the characteristics of the above method include: this application solves the above problems by applying some fields in the first DCI to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0018] As an embodiment, the characteristics of the above method include: the first type of cells includes cells configured with SBFD symbols.

[0019] As an embodiment, the characteristics of the above method include: this application is applicable to the scenario where the format of the first DCI is DCI format 0_X or format 1_X, and X is a positive integer greater than 2.

[0020] As an embodiment, the characteristics of the above method include: the present application is applicable to a system in which the same PDCCH schedules multiple cells simultaneously in a SBFD scenario.

[0021] As an embodiment, the benefits of the above method include: supporting the same PDCCH to schedule multiple cells simultaneously, saving signaling overhead.

[0022] As an embodiment, the benefits of the above method include: avoiding the first DCI decoding failure caused by the first DCI scheduling multiple cells at the same time, which is conducive to correct decoding.

[0023] As an embodiment, the benefits of the above method include: simplifying the design of the first DCI and reducing the complexity of system implementation.

[0024] As an embodiment, the benefits of the above method include: avoiding transmission conflicts that may occur during uplink and downlink as much as possible and improving transmission reliability.

[0025] According to one aspect of the present application, the above method is characterized in that it includes:

[0026] receiving a first reference signal in a first cell;

[0027] The first cell is a cell having the smallest serving cell identifier among cells other than the first type of cells in the first cell set, measurement of the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

[0028] As an embodiment, the problem to be solved by the present application includes: in an SBFD scenario, when the first DCI schedules multiple cells, the interpretation of the CSI request field in the first DCI.

[0029] As an embodiment, the characteristics of the above method include: the present application solves the above problem by applying the CSIrequest field in the first DCI to the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set.

[0030] As an embodiment, the characteristics of the above method include: the first DCI includes a CSI request field, and the one CSI request field only triggers one cell in the first cell set to receive the first reference signal.

[0031] As an embodiment, the characteristics of the above method include: the first DCI includes a CSI request field, and the CSI request field does not trigger a cell in the first cell set configured with an SBFD symbol to receive the first reference signal.

[0032] As an embodiment, the advantages of the above method include: for a cell configured with SBFD symbols, the interference environment may change significantly on SBFD symbols and non-SBFD symbols, and channel estimation and optimization processing are also more complex. The CSI request field in the first DCI does not trigger the cell configured with SBFD symbols in the first cell set to receive the first reference signal, which reduces the implementation difficulty and system complexity.

[0033] As an embodiment, the advantages of the above method include: avoiding transmission failures caused by uplink-downlink conflicts and improving channel capacity.

[0034] As an embodiment, the advantages of the above method include: improving the utilization efficiency of reference signal resources and ensuring that the UE can obtain the latest channel state information in a timely manner.

[0035] As an embodiment, the advantages of the above method include: the first cell, i.e., the cell with the smallest serving cell identifier without SBFD configuration, is generally considered to have better channel conditions and relatively stable interference conditions. Therefore, performing measurements and CSI reporting in the first cell is beneficial to ensuring system performance and improving transmission efficiency.

[0036] As an embodiment, the advantages of the above method include: being beneficial to improving the reliability of reference signal transmission, and at the same time improving the accuracy and reliability of channel estimation.

[0037] According to one aspect of the present application, the above method is characterized in that the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0038] As an embodiment, the problems to be solved by the present application include: in the SBFD scenario, when the first DCI schedules multiple cells, the interpretation of the UL-SCH indicator field in the first DCI.

[0039] As an embodiment, the problems to be solved by the present application include: in the SBFD scenario, when the first DCI schedules multiple cells and the transmission channel occupied by the target signal includes the UL-SCH, whether the UL-SCH is transmitted on the PUSCH.

[0040] As an embodiment, the characteristics of the above method include: the present application solves the above problems by applying the UL-SCH indicator field in the first DCI to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0041] As an embodiment, the characteristics of the above method include: the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator only indicates whether the UL-SCH of a cell in the first cell set is transmitted on the PUSCH.

[0042] As an embodiment, the advantages of the above method include: especially when the first DCI includes a CSI request field, the UL-SCH indicator field and the CSI request field included in the first DCI have good backward compatibility when applied to the same cell.

[0043] As an embodiment, the advantages of the above method include: facilitating the joint interpretation of the CSI request field and the UL-SCH indicator field.

[0044] As an embodiment, the advantages of the above method include: simple implementation.

[0045] According to one aspect of the present application, the above method is characterized in that it includes:

[0046] Receiving a first signal in the first cell set;

[0047] Wherein, the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell, and the first type of sub-signal transmitted in the first cell is used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signal transmitted in the first cell.

[0048] As an embodiment, the characteristics of the above method include: in the SBFD scenario, when the first DCI schedules multiple PDSCHs, how to determine the reference PDSCH for the DAI count of the corresponding Type-2 HARQ-ACK codebook.

[0049] As an embodiment, the characteristics of the above method include: the present application solves the above problem by setting the reference PDSCH for the DAI count of the Type-2 HARQ-ACK codebook to the PDSCH transmitted on the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0050] As an embodiment, the characteristics of the above method include: the present application is applicable to the scenario where the feedback information is the Type-2 HARQ-ACK codebook.

[0051] As an embodiment, the advantages of the above method include: ensuring the integrity check of the entire transmission process.

[0052] As an embodiment, the advantages of the above method include: The base station can take appropriate measures based on the HARQ-ACK information fed back by the UE to improve system performance and resource utilization. Determining the DAI count of HARQ-ACK based on the PDSCH received in the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is beneficial for the base station to correctly estimate the interference and performance of the system, and avoid repeated transmission and resource waste.

[0053] As an embodiment, the advantages of the above method include: being beneficial to improving the reliability of transmission.

[0054] According to one aspect of the present application, the above method is characterized in that the sub-signal transmitted in the first cell is used to determine the target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0055] As an embodiment, the features of the above method include: In the SBFD scenario, how to determine the PUCCH occupied by the target signal.

[0056] As an embodiment, the features of the above method include: The present application solves the above problem by making the PUCCH occupied by the target signal dependent on the target DCI format.

[0057] As an embodiment, the features of the above method include: The target DCI format is the last DCI format, and the DAI field in the last DCI format indicates the DAI count of the HARQ-ACK carried by the target signal.

[0058] As an embodiment, the features of the above method include: The target DCI format is the first DCI format.

[0059] As an embodiment, the advantages of the above method include: Determining the PUCCH occupied by the target signal based on the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set has good compatibility.

[0060] As an embodiment, the advantages of the above method include: simple implementation.

[0061] According to one aspect of the present application, the above method is characterized in that it includes:

[0062] Receiving a first information block;

[0063] Wherein, the first information block indicates at least one symbol configured as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0064] As an embodiment, the characteristics of the above method include: the first information block explicitly or implicitly indicates at least one of the symbols that are configured as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0065] As an embodiment, the characteristics of the above method include: the first information block indicates whether at least one of the symbols that are configured as downlink by the TDD uplink-downlink configuration can be used for uplink transmission.

[0066] As an embodiment, the advantages of the above method include: good forward compatibility.

[0067] According to one aspect of the present application, the above method is characterized in that the first DCI includes a first set of fields, and the fields in the first set of fields included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0068] As an embodiment, the characteristics of the above method include: the values of the fields in the first set of fields for the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set are default.

[0069] As an embodiment, the characteristics of the above method include: the values of the fields in the first set of fields for the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set are default.

[0070] As an embodiment, the characteristics of the above method include: the interpretation of the fields in the first set of fields is only applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0071] As an embodiment, the advantages of the above method include: saving signaling overhead.

[0072] As an embodiment, the advantages of the above method include: avoiding repeated indication and saving transmission resources.

[0073] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0074] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0075] The present application discloses a method in a second node for wireless communication, which includes:

[0076] Sending a first DCI, where the first DCI indicates a first cell set;

[0077] Receive a target signal;

[0078] Wherein, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0079] According to one aspect of the present application, the above method is characterized in that it includes:

[0080] Transmit a first reference signal in a first cell;

[0081] Wherein, the first cell is the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set, the measurement of the first reference signal by the receiver of the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

[0082] According to one aspect of the present application, the above method is characterized in that the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0083] According to one aspect of the present application, the above method is characterized in that it includes:

[0084] Transmit a first signal in the first cell set;

[0085] Wherein, the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell, and the first type of sub-signals transmitted in the first cell are used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signals transmitted in the first cell.

[0086] According to one aspect of the present application, the above method is characterized in that the sub-signals transmitted in the first cell are used to determine a target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0087] According to one aspect of the present application, the above method is characterized in that it includes:

[0088] Transmit a first information block;

[0089] Wherein, the first information block indicates at least one of the symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0090] According to one aspect of the present application, the above method is characterized in that the first DCI includes a first set of fields, and the fields in the first set of fields included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0091] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0092] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0093] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0094] The present application discloses a device for a first node used in wireless communication, which includes:

[0095] A first receiver, receiving a first DCI, where the first DCI indicates a first cell set;

[0096] A first transmitter, transmitting a target signal;

[0097] Wherein, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0098] As an embodiment, the first node is a terminal.

[0099] The present application discloses a device for a second node used in wireless communication, which includes:

[0100] A second transmitter, transmitting a first DCI, where the first DCI indicates a first cell set;

[0101] A second receiver, receiving a target signal;

[0102] Wherein, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0103] As an embodiment, the second node is a base station.

[0104] As an embodiment, compared with the traditional solution, the present application has the following advantageous but not limited advantages:

[0105] Supporting multiple cells to be scheduled by the same PDCCH simultaneously, saving signaling overhead;

[0106] Avoiding DCI decoding failure caused by a DCI scheduling multiple cells simultaneously, which is beneficial to correct decoding;

[0107] Reducing the implementation difficulty and system complexity, as much as possible avoiding possible transmission conflicts in the uplink and downlink processes, and improving the reliability of transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0109] Figure 1 Showing a flowchart of the transmission of the first node according to an embodiment of the present application;

[0110] Figure 2 Showing a schematic diagram of the network architecture according to an embodiment of the present application;

[0111] Figure 3 Showing a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application;

[0112] Figure 4 Showing a schematic diagram of the first communication device and the second communication device according to an embodiment of the present application;

[0113] Figure 5 Showing a flowchart of the transmission between the first node and the second node according to an embodiment of the present application;

[0114] Figure 6 Showing a schematic diagram of the symbols indicated as the downlink by the TDD uplink and downlink configuration for uplink transmission according to an embodiment of the present application;

[0115] Figure 7 Showing a schematic diagram of the first cell set and the first cell according to an embodiment of the present application;

[0116] Figure 8 Showing a schematic diagram of the relationship between the first DCI and the target signal according to an embodiment of the present application;

[0117] Figure 9 Showing a schematic diagram of the relationship between the first signal and the target signal according to an embodiment of the present application;

[0118] Figure 10A schematic diagram showing the relationship between a first type of sub-signal transmitted in a first cell and a target signal according to an embodiment of the present application;

[0119] Figure 11 A schematic diagram showing a first domain set according to an embodiment of the present application;

[0120] Figure 12 A structural block diagram of a processing device for a first node according to an embodiment of the present application;

[0121] Figure 13 A structural block diagram of a processing device for a second node according to an embodiment of the present application. Detailed implementation manners

[0122] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0123] Example 1

[0124] Embodiment 1 exemplifies a flowchart of transmission by a first node according to an embodiment of the present application, as shown in the accompanying Figure 1 drawing. In the accompanying Figure 1 drawing, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence between the steps.

[0125] The first node receives a first DCI in step 101, and the first DCI indicates a first cell set; and sends a target signal in step 102.

[0126] In Embodiment 1, the first cell set includes K1 cells, where K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are configured as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0127] As an embodiment, the DCI refers to: Downlink Control Information, downlink control information.

[0128] As an embodiment, the TDD refers to: Time Division Duplex, time division duplexing.

[0129] As an embodiment, the TDD refers to: Time Division Duplexing, time division duplexing.

[0130] As an example, the format of the first DCI is one of the DCI formats supported by a User Equipment - Specific Search set (USS set).

[0131] As an example, the first node monitors the first DCI in a UE - specific search space (USS) set.

[0132] As an example, the meaning of "monitor" includes "detect".

[0133] As an example, the meaning of "monitor" includes "receive".

[0134] As an example, the meaning of "monitor" includes "search".

[0135] As an example, the meaning of "monitor" includes "monitor".

[0136] As an example, the meaning of "monitor" includes Cyclic Redundancy Check (CRC) verification.

[0137] As an example, the format of the first DCI is a DCI format for scheduling an uplink channel or signal.

[0138] As an example, the format of the first DCI is DCI format 0_X, where X is a positive integer greater than 2.

[0139] As an example, the format of the first DCI is a DCI format for scheduling a downlink channel or signal.

[0140] As an example, the format of the first DCI is DCI format 1_X, where X is a positive integer greater than 2.

[0141] As an example, the CRC of the first DCI is scrambled by a Cell - Radio Network Temporary Identifier (C - RNTI).

[0142] As an example, the CRC of the first DCI is scrambled by a Modulation and Coding Scheme - C - RNTI (MCS - C - RNTI).

[0143] As an embodiment, the first DCI explicitly indicates the first cell set.

[0144] As an embodiment, the first node is configured with N cell sets, the first DCI indicates a target cell set from the N cell sets, the first cell set is a subset of the target cell set, and N is a positive integer.

[0145] As a sub - embodiment of this embodiment, the value of N depends on the capability of the first node.

[0146] As a sub - embodiment of this embodiment, N is a positive integer greater than 1, and any two cells included in the N cells are different.

[0147] As a sub - embodiment of this embodiment, the first DCI includes a first field, and the first field of the first DCI indicates the target cell set.

[0148] As a sub - embodiment of this embodiment, all cells included in the first cell set belong to the target cell set.

[0149] As a sub - embodiment of this embodiment, there is a cell in the target cell set that does not belong to the first cell set.

[0150] As a sub - embodiment of this embodiment, the target cell set includes the first cell set.

[0151] As a sub - embodiment of this embodiment, the target cell set is the first cell set.

[0152] As an embodiment, the first DCI indicates a row in the co - scheduling cell combination table, and the row is used to determine the first cell set.

[0153] As a sub - embodiment of this embodiment, the first DCI includes a second field, and the second field of the first DCI indicates a row in the co - scheduling cell combination table.

[0154] As a sub - embodiment of this embodiment, the co - scheduling cell combination table is configured by RRC (Radio Resource Control).

[0155] As a sub - embodiment of this embodiment, the cells indicated by any row in the co - scheduling cell combination table belong to the target cell set in this application.

[0156] As an embodiment, the first DCI implicitly indicates the first cell set.

[0157] As an embodiment, the first DCI includes at least one FDRA field, and the at least one FDRA field is used to determine the first cell set.

[0158] As a sub - embodiment of this embodiment, the FDRA field is a Frequency domain resource assignment field.

[0159] As a sub - embodiment of this embodiment, the FDRA field is a frequency domain resource allocation field.

[0160] As a sub - embodiment of this embodiment, the at least one FDRA field is used to determine the first cell set from the target cell set described in this application.

[0161] As a sub - embodiment of this embodiment, the target cell set described in this application includes M cells, the first DCI includes M FDRA fields, and the M cells correspond one - to - one with the M FDRA fields, where M is a positive integer not less than K1.

[0162] As an accessory embodiment of this sub - embodiment, an FDRA field is all set to 0, and the cell corresponding to the one FDRA field does not belong to the first cell set.

[0163] As an accessory embodiment of this sub - embodiment, an FDRA field is all set to 1, and the cell corresponding to the one FDRA field does not belong to the first cell set.

[0164] As an embodiment, K1 is not greater than 4.

[0165] As an embodiment, K1 is not greater than 8.

[0166] As an embodiment, K1 is not greater than 32.

[0167] As an embodiment, the first cell set consists of K1 cells.

[0168] As an embodiment, the first cell set only includes the K1 cells.

[0169] As an embodiment, the first cell set includes K1 cells, where K1 is a positive integer greater than 1.

[0170] As an embodiment, the K1 cells are respectively K1 serving cells.

[0171] As an embodiment, each cell in the K1 cells is a serving cell of the first node.

[0172] As an embodiment, the first node performs secondary serving cell addition for each of the K1 cells.

[0173] As an embodiment, the most recently received sCellToAddModList or sCellToAddModListSCG at the first node includes each of the K1 cells.

[0174] As an embodiment, for each of the K1 cells, the first node is assigned an SCellIndex or ServCellIndex for this cell.

[0175] As an embodiment, an RRC connection has been established between the first node and each of the K1 cells.

[0176] As an embodiment, the C-RNTI of the first node is allocated by one of the K1 cells.

[0177] As an embodiment, the C-RNTI of the first node is allocated by a cell that does not belong to the K1 cells.

[0178] As an embodiment, the K1 cells include the SpCell (Special Cell) of the first node.

[0179] As an embodiment, the K1 cells include the SCell (Secondary Cell) of the first node.

[0180] As an embodiment, any one of the K1 cells is the SpCell or SCell of the first node.

[0181] As an embodiment, for the definition of the serving cell, refer to 3GPP (3rd Generation Partner Project) TS (Technical Specification) 38.331.

[0182] As an embodiment, the K1 cells respectively correspond to K1 CCs (Component Carriers).

[0183] As an embodiment, the K1 cells respectively correspond to K1 carriers.

[0184] As a sub-embodiment of this embodiment, the K1 carriers are respectively the carriers on which the K1 cells are scheduled by the first DCI.

[0185] As an example, the K1 cells respectively correspond to K1 active Bandwidth Parts (BWPs).

[0186] As a sub - example of this example, the K1 active BWPs are respectively the BWPs of the K1 cells scheduled by the first DCI, and the K1 BWPs have the same numerology.

[0187] As a sub - example of this example, the K1 active BWPs are respectively the BWPs of the K1 cells scheduled by the first DCI, and the K1 BWPs have the same Sub - Carrier Spacing configuration.

[0188] As an example, all cells in the first cell set belong to the same cell group.

[0189] As an example, all cells in the first cell set belong to the MCG (Master Cell Group) or all belong to the SCG (Secondary Cell Group).

[0190] As an example, all cells in the first cell set belong to the same Physical Uplink Control Channel (PUCCH) group.

[0191] As an example, a PUCCH group includes a set of cells, and the PUCCH signaling of the set of cells is associated with the PUCCH of the SpCell or the PUCCH of the PUCCH SCell; a PUCCH SCell is an SCell configured with a PUCCH.

[0192] As an example, a PUCCH group includes a set of cells, and the PUCCH signaling of the set of cells is associated with the PUCCH of the same cell.

[0193] As a sub - example of this example, the PUCCH carrying the PUCCH signaling of the set of cells is transmitted in the same cell.

[0194] As a sub - example of this example, the PUCCH carrying the PUCCH signaling of the set of cells is the PUCCH configured for the same cell.

[0195] As a sub - embodiment of this embodiment, the same cell is the PUCCH cell of the set of cells.

[0196] As a sub - embodiment of this embodiment, the same cell is the SpCell or PUCCH SCell of the set of cells.

[0197] As a sub - embodiment of this embodiment, the same cell is the cell in the set of cells that is configured with PUCCH.

[0198] As a sub - embodiment of this embodiment, the same cell is the only cell in the set of cells that is configured with PUCCH.

[0199] As an embodiment, the definition of the PUCCH group can be found in 3GPP TS38.300 and 3GPP TS38.331.

[0200] As an embodiment, the definition of the PUCCH SCell can be found in 3GPP TS38.300 and 3GPP TS38.331.

[0201] As an embodiment, all cells in the first cell set have the same numerology.

[0202] As an embodiment, all cells in the first cell set have the same sub - carrier spacing configuration.

[0203] As an embodiment, the first node receives the first DCI on one of the K1 cells.

[0204] As an embodiment, the first node receives the first DCI on a cell outside the K1 cells.

[0205] As an embodiment, the target signal includes a baseband signal.

[0206] As an embodiment, the target signal includes a radio frequency signal.

[0207] As an embodiment, the target signal includes a wireless signal.

[0208] As an embodiment, the target signal includes an uplink reference signal.

[0209] As an embodiment, the target signal includes an SRS (Sounding Reference Signal).

[0210] As an embodiment, the target signal carries physical layer control information.

[0211] As an embodiment, the target signal carries a CSI (Channel State Information) report.

[0212] As an embodiment, the target signal includes UCI (Uplink Control Information).

[0213] As an embodiment, the target signal includes HARQ (Hybrid Automatic Repeat reQuest)-ACK (ACKnowledgement).

[0214] As an embodiment, the target signal corresponds to an uplink grant.

[0215] As an embodiment, the target signal is based on dynamically scheduled PUSCH (Physical Uplink Shared CHannel) transmission.

[0216] As an embodiment, the target signal is PUCCH transmission.

[0217] As an embodiment, the target signal includes K1 target sub-signals, and the K1 target sub-signals are respectively transmitted in the K1 cells.

[0218] As a sub-embodiment of this embodiment, the K1 target sub-signals respectively carry different TBs (Transport blocks).

[0219] As a sub-embodiment of this embodiment, the K1 target sub-signals respectively occupy K1 PUSCHs.

[0220] As a sub-embodiment of this embodiment, the K1 target sub-signals respectively occupy K1 PUCCHs.

[0221] As an embodiment, the target signal includes K2 target sub-signals, and the K2 target sub-signals are respectively transmitted in K2 of the K1 cells, where K2 is a positive integer greater than 1 and less than K1.

[0222] As a sub-embodiment of this embodiment, the K2 target sub-signals respectively occupy K1 PUSCHs.

[0223] As a sub-embodiment of this embodiment, the K2 target sub-signals respectively occupy K1 PUCCHs.

[0224] As a sub - embodiment of this embodiment, the K2 target sub - signals respectively occupy K2 PUSCHs.

[0225] As a sub - embodiment of this embodiment, the K2 target sub - signals respectively occupy K2 PUCCHs.

[0226] As an embodiment, the target signal is transmitted in one of the K1 cells.

[0227] As an embodiment, the meaning of the behavior "a signal is transmitted on a cell" includes: transmitting the one signal using the radio access network resources of the one cell.

[0228] As an embodiment, the meaning of the behavior "a signal is transmitted on a cell" includes: transmitting the one signal in the radio access network resources corresponding to the one cell.

[0229] As an embodiment, the meaning of the behavior "a signal is transmitted on a cell" includes: transmitting the one signal in the radio access network resources configured for the one cell.

[0230] As an embodiment, the radio access network resources in this application include frequency - domain resources.

[0231] As an embodiment, the radio access network resources in this application include time - domain resources.

[0232] As an embodiment, the radio access network resources in this application include code - domain resources.

[0233] As an embodiment, the radio access network resources in this application include spatial resources.

[0234] As an embodiment, the first DCI is used to schedule the target signal.

[0235] As an embodiment, the first DCI is used to trigger the transmission of the target signal.

[0236] As an embodiment, the first DCI indicates the frequency - domain resources occupied by the target signal.

[0237] As an embodiment, the first DCI indicates the time - domain resources occupied by the target signal.

[0238] As an embodiment, the first cell set includes at least one of the first - type cells.

[0239] As an embodiment, the first cell set does not include the first - type cells.

[0240] As an example, the first cell set includes at least one cell outside the first type of cells.

[0241] As an example, the serving cell identifier is a ServCellIndex.

[0242] As an example, the ServCellIndex is a non - negative integer not greater than 31.

[0243] As an example, the serving cell identifier is a servCellId.

[0244] As an example, the serving cell identifier is an SCellIndex.

[0245] As an example, the SCellIndex is a positive integer not greater than 31.

[0246] As an example, the serving cell identifier is a scheduledCellId.

[0247] As an example, the serving cell identifier corresponds to a PhysCellId.

[0248] As an example, the PhysCellId is a non - negative integer not greater than 1007.

[0249] As an example, the serving cell identifier corresponds to a CIF (Carrier Indicator Field).

[0250] As an example, the serving cell identifier corresponds to a PCI.

[0251] As an example, in this application, the PCI refers to: Physical Cell Identifier.

[0252] As an example, in this application, the PCI refers to: Physical Cell Identity.

[0253] As an example, in this application, the PCI refers to: Physical - layer Cell Identity.

[0254] As an example, the meaning of the feature that "the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal" includes that the UL-SCH (UpLink-Shared CHannel) indicator field in the first DCI is only for the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set, and the UL-SCH indicator field in the first DCI indicates whether the UL-SCH transmitted on the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is transmitted on the PUSCH.

[0255] As a sub-example of this example, the UL-SCH indicator field in the first DCI for the cells other than the cell with the smallest serving cell identifier is default.

[0256] As a sub-example of this example, the UL-SCH indicator field in the first DCI for the cells other than the cell with the smallest serving cell identifier does not exist in the first DCI.

[0257] As an example, the meaning of the feature that "the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal" includes that the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the PUCCH resource occupied by the target signal.

[0258] As an example, the meaning of the feature that "the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal" includes that the scheduling DCI of the PDSCH (Physical DownlinkShared CHannel) transmitted in the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the last DCI used to determine the PUCCH resource occupied by the target signal.

[0259] As an example, the meaning of the feature that "the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal" includes that the scheduling DCI format of the PDSCH transmitted in the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the last DCI format used to determine the PUCCH resource occupied by the target signal.

[0260] As an example, the last DCI in the present application refers to the DCI detected by the first node from the last PDCCH monitoring occasion in the PDCCH monitoring occasions (MO) that provide HARQ-ACK information on the same PUCCH in the same time slot.

[0261] As an example, the last DCI format in the present application refers to the DCI format detected by the first node from the last PDCCH monitoring occasion in the PDCCH monitoring occasions that provide HARQ-ACK information on the same PUCCH in the same time slot.

[0262] As an example, for the definition of the PDCCH monitoring occasion, refer to 3GPP TS 38.213.

[0263] As an example, among the cells other than the cells of the first type in the first cell set, the cell with the smallest serving cell identifier is the first cell, and the PDSCH transmitted on the first cell is used to determine the HARQ-ACK carried by the target signal.

[0264] As a sub-example of this example, the PDSCH transmitted on the first cell is used to determine the number of bits of the HARQ-ACK carried by the target signal.

[0265] As a sub-example of this example, the PDSCH transmitted on the first cell is used to determine the time-domain resources occupied by the HARQ-ACK carried by the target signal.

[0266] As a sub-example of this example, the PDSCH transmitted on the first cell is used to determine the frequency-domain resources occupied by the HARQ-ACK carried by the target signal.

[0267] As an example, the HARQ-ACK in the present application includes ACK.

[0268] As an example, the HARQ-ACK in the present application includes NACK (Negative ACK, negative acknowledgment).

[0269] As an example, among the cells other than the cells of the first type in the first cell set, the cell with the smallest serving cell identifier is the first cell, and the first DCI is used to trigger the first node to receive CSI-RS (Channel State Information-Reference Signal) in the first cell.

[0270] As a sub - embodiment of this embodiment, the CSI - RS received in the first cell is used to generate the target signal.

[0271] As an embodiment, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The UL - SCH indication field in the first DCI is only for the first cell, and the UL - SCH indication field in the first DCI indicates whether the UL - SCH transmitted on the first cell is transmitted on the PUSCH.

[0272] As a sub - embodiment of this embodiment, the UL - SCH indication field in the first DCI for cells other than the first cell is default.

[0273] As a sub - embodiment of this embodiment, the UL - SCH indication field in the first DCI for cells other than the first cell does not exist in the first DCI.

[0274] As an embodiment, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The first cell is used to determine the PUCCH resources occupied by the target signal.

[0275] As an embodiment, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The scheduling DCI of the PDSCH transmitted in the first cell is the last DCI used to determine the PUCCH resources occupied by the target signal.

[0276] As an embodiment, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The scheduling DCI format of the PDSCH transmitted in the first cell is the last DCI format used to determine the PUCCH resources occupied by the target signal.

[0277] As an embodiment, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The scheduling DCI format of the PDSCH transmitted in the first cell is the last DCI format used to determine the PUCCH resources occupied by the target signal.

[0278] As an embodiment, the TDD uplink - downlink configuration is indicated by higher layer signaling.

[0279] As an embodiment, the TDD uplink - downlink configuration is indicated by semi - static signaling.

[0280] As an example, the TDD uplink-downlink configuration is indicated by cell common signaling.

[0281] As an example, the TDD uplink-downlink configuration is indicated by UE group common signaling.

[0282] As an example, the link direction indicated by the TDD uplink-downlink configuration applies to the entire frequency band occupied by the serving cell to which it belongs.

[0283] As an example, the link direction indicated by the TDD uplink-downlink configuration applies to the entire carrier to which it belongs.

[0284] As an example, the TDD uplink-downlink configuration is indicated by signaling including UE-specific signaling.

[0285] As an example, the TDD uplink-downlink configuration is indicated by RRC signaling.

[0286] As an example, the TDD uplink-downlink configuration is indicated by the TDD-UL-DL-ConfigCommon IE.

[0287] As an example, the TDD uplink-downlink configuration is indicated by the TDD-UL-DL-ConfigDedicatedIE.

[0288] As an example, the TDD uplink-downlink configuration is indicated jointly by the TDD-UL-DL-ConfigCommon IE and the TDD-UL-DL-ConfigDedicatedIE.

[0289] As an example, the TDD uplink-downlink configuration is indicated by at least the former of the TDD-UL-DL-ConfigCommon IE and the TDD-UL-DL-ConfigDedicatedIE.

[0290] As an example, the TDD uplink-downlink configuration is indicated by the TDD-UL-DL-Pattern field.

[0291] As an example, the TDD uplink-downlink configuration indicates the downlink time slots and downlink symbols within the indication period.

[0292] As an example, at least one time slot within the indication period of the TDD uplink-downlink configuration is a downlink time slot and / or at least one symbol is a downlink symbol.

[0293] As an example, the TDD uplink-downlink configuration indicates at least one slot format, and the at least one slot format is used to determine at least one downlink symbol.

[0294] As an embodiment, the TDD uplink-downlink configuration indicates, in one period, at least one time slot including only downlink symbols and at least one downlink symbol following the time slot including only downlink symbols.

[0295] As an embodiment, the TDD uplink-downlink configuration indicates the number of starting downlink time slots in one period, the number of downlink symbols following the starting downlink time slots, and the period length.

[0296] As an embodiment, the TDD uplink-downlink configuration indicates at least one pattern, and any pattern indicated by the TDD uplink-downlink configuration signaling provides a time slot configuration period length, the number of time slots including only downlink symbols, the number of downlink symbols, the number of time slots including only uplink symbols, and the number of uplink symbols.

[0297] As an embodiment, the TDD uplink-downlink configuration indicates at least one pattern, and at least one pattern indicated by the TDD uplink-downlink configuration signaling provides at least one time slot including only downlink symbols and at least one downlink symbol not belonging to the time slot including only downlink symbols in one period.

[0298] As an embodiment, the TDD uplink-downlink configuration is indicated by MAC (Medium Access Control) layer signaling.

[0299] As an embodiment, the TDD uplink-downlink configuration is indicated by MAC CE (Control Element).

[0300] As an embodiment, the TDD uplink-downlink configuration is indicated by dynamic signaling.

[0301] As an embodiment, the TDD uplink-downlink configuration is indicated by physical layer signaling.

[0302] As an embodiment, the TDD uplink-downlink configuration is indicated by Layer 1 signaling.

[0303] As an embodiment, the TDD uplink-downlink configuration is indicated by DCI (Downlink Control Information).

[0304] As a sub-embodiment of this embodiment, the CRC of the DCI is scrambled by a cell-common RNTI.

[0305] As a sub - embodiment of this embodiment, the CRC of the DCI is scrambled by an RNTI common to the UE group.

[0306] As a sub - embodiment of this embodiment, the CRC of the DCI is scrambled by an SFI (Slot Format Indicator) - RNTI.

[0307] As a sub - embodiment of this embodiment, the format adopted by the DCI is DCI format2_0.

[0308] As a sub - embodiment of this embodiment, the DCI is an SFI.

[0309] As an embodiment, the TDD uplink - downlink configuration is indicated jointly by RRC layer signaling and physical layer signaling.

[0310] As an embodiment, the TDD uplink - downlink configuration is carried jointly by RRC layer signaling and physical layer signaling.

[0311] As a sub - embodiment of this embodiment, the RRC layer signaling includes at least the former of TDD - UL - DL - ConfigCommon IE and TDD - UL - DL - ConfigDedicatedIE.

[0312] As a sub - embodiment of this embodiment, the physical layer signaling includes some or all domains of a DCI.

[0313] As a sub - embodiment of this embodiment, the physical layer signaling includes an SFI.

[0314] As an embodiment, the symbol in this application is a single - carrier symbol.

[0315] As an embodiment, the symbol in this application is a multi - carrier symbol.

[0316] As an embodiment, the multi - carrier symbol in this application is an SC - FDMA (Single Carrier - Frequency Division Multiple Access) symbol.

[0317] As an embodiment, the multi - carrier symbol in this application is an FBMC (Filter Bank Multi Carrier) symbol.

[0318] As an embodiment, the multi - carrier symbol in this application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0319] As an embodiment, the symbols described in this application are obtained after the output of the transform precoding passes through OFDM symbol generation.

[0320] As an embodiment, the multi-carrier symbols described in this application are DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols.

[0321] As an embodiment, the multi-carrier symbols described in this application include CP-OFDM (Cyclic Prefix-OFDM) symbols.

[0322] As an embodiment, that a symbol is indicated as a downlink symbol in this application means that: the type of the symbol is DL (DownLink).

[0323] As an embodiment, that a symbol is indicated as an uplink symbol in this application means that: the type of the symbol is UL (UpLink).

[0324] As an embodiment, that a symbol is indicated as a flexible symbol in this application means that: the type of the symbol is F (flexible).

[0325] As an embodiment, the first type of cell includes symbols that are indicated as downlink symbols for uplink transmission by the TDD uplink-downlink configuration.

[0326] As an embodiment, the first type of cell is configured with symbols that are indicated as downlink symbols for uplink transmission by the TDD uplink-downlink configuration.

[0327] As an embodiment, the first type of cell further includes symbols that are indicated as flexible symbols for uplink transmission by the TDD uplink-downlink configuration.

[0328] As an embodiment, the first type of cell is further configured with symbols that are indicated as flexible symbols for uplink transmission by the TDD uplink-downlink configuration.

[0329] Example 2

[0330] Embodiment 2 exemplifies a schematic diagram of a network architecture according to an embodiment of this application, as shown in the appendix Figure 2 as follows.

[0331] Appendix Figure 2Describes the network architectures of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architectures of LTE, LTE-A, and future 5G systems are referred to as EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS200 or some other suitable term. 5GS / EPS200 may include one or more UEs 201, a UE 241 that communicates with UE 201 via sidelink, an NG-RAN (Next Generation Radio Access Network) 202, a 5G-CN (5G Core Network) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and an Internet service 230. 5GS / EPS200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As attached Figure 2As shown, the 5GS / EPS 200 provides packet-switched services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services. The NG-RAN 202 includes an NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol termination towards the UE 201. The gNB 203 can be connected to other gNBs 204 via the Xn interface (e.g., backhaul). The gNB 203 can also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), Transmitter Receiver Point (TRP), or some other suitable term. The gNB 203 provides an access point to the 5G-CN / EPC 210 for the UE 201. Examples of the UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional device. Those skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The gNB 203 is connected to the 5G-CN / EPC 210 via the S1 / NG interface. The 5G-CN / EPC 210 includes a Mobility Management Entity (MME) / Authentication Management Field (AMF) / Session Management Function (SMF) 211, other MMEs / AMFs / SMFs 214, a Service Gateway (S-GW) / User Plane Function (UPF) 212, and a Packet Data Network Gateway (P-GW) / UPF 213.The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, and the S-GW / UPF 212 itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-corresponding Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0332] As an embodiment, the first node in the present application includes the UE 201.

[0333] As an embodiment, the second node in the present application includes the gNB 203.

[0334] As an embodiment, the UE 201 includes a mobile phone.

[0335] As an embodiment, the UE 201 includes a vehicle such as an automobile.

[0336] As an embodiment, the gNB 203 is a macro cell base station.

[0337] As an embodiment, the gNB 203 is a micro cell base station.

[0338] As an embodiment, the gNB 203 is a pico cell base station.

[0339] As an embodiment, the gNB 203 is a femtocell.

[0340] As an embodiment, the gNB 203 is a base station device that supports large time delay differences.

[0341] As an embodiment, the gNB 203 is a flying platform device.

[0342] As an embodiment, the gNB 203 is a satellite device.

[0343] As an embodiment, the gNB 203 is a test device (such as a transceiver that simulates some functions of a base station, a signaling tester).

[0344] As an example, the radio link from the UE 201 to the gNB 203 is an uplink, and the uplink is used to perform uplink transmission.

[0345] As an example, the radio link from the gNB 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0346] As an example, the radio link between the UE 201 and the gNB 203 includes a cellular network link.

[0347] As an example, the UE 201 and the gNB 203 are connected through the Uu air interface.

[0348] As an example, the sender of the first DCI includes the gNB 203.

[0349] As an example, the receiver of the first DCI includes the UE 201.

[0350] As an example, the sender of the target signal includes the UE 201.

[0351] As an example, the receiver of the target signal includes the gNB 203.

[0352] As an example, the UE 201 supports scheduling of PDSCH / PUSCH for multiple cells by a single DCI.

[0353] As an example, the UE 201 supports SBFD (SubBand non - overlapping Full Duplex).

[0354] As an example, the UE 201 supports a more flexible duplex mode or a full - duplex mode.

[0355] As an example, the gNB 203 supports SBFD.

[0356] As an example, the gNB 203 supports a more flexible duplex mode or a full - duplex mode.

[0357] Example 3

[0358] Example 3 illustrates a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown.

[0359] Figure 3 It is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first communication node device (UE or RSU (Road Side Unit), in-vehicle device or in-vehicle communication module in V2X (Vehicle to Everything)) and a second node device (gNB, UE or RSU in V2X, in-vehicle device or in-vehicle communication module), or between two UEs, is presented with three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as PHY 301 in this document. L2 305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs, via PHY 301. L2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides handover support for the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for disordered reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sub-layers in the control plane 300 for the physical layer 351, the PDCP sub-layer 354 in L2 355, the RLC sub-layer 353 in L2 355, and the MAC sub-layer 352 in L2 355. However, the PDCP sub-layer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sub-layer 356. The SDAP sub-layer 356 is responsible for the mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support the diversity of services. Although not shown, the first communication node device may have several upper layers above L2 355, including a network layer (e.g., an IP (Internet Protocol) layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0360] As an example, the Figure 3 radio protocol architecture in is applicable to the first node in this application.

[0361] As an example, the Figure 3 radio protocol architecture in is applicable to the second node in this application.

[0362] As an example, the first DCI is generated at the PHY 301 or PHY 351.

[0363] As an example, the target signal is generated at the PHY 301 or PHY 351.

[0364] As an example, the higher layer in this application refers to the layer above the physical layer.

[0365] As an example, the higher layer in this application includes the MAC layer.

[0366] As an example, the higher layer in this application includes the RRC layer.

[0367] Example 4

[0368] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attachment Figure 4 shown. The attachmentFigure 4 It is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

[0369] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.

[0370] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0371] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functions of L2. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-ary phase shift keying (M-PSK), M-ary quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding, non-codebook-based precoding, and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to different antennas 420.

[0372] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream for providing to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of L1. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of L2. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between the transmission and the logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using the Acknowledgement (ACK) and / or Negative Acknowledgement (NACK) protocols to support HARQ operations.

[0373] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmit function at the first communication device 410 described in DL, the controller / processor 459 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and performs L2 functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing. A multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated parallel streams into multi-carrier / single-carrier symbol streams, and after passing through analog precoding / beamforming operations in the multi-antenna transmit processor 457, provides them to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0374] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receive functions at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly perform L1 functions. A controller / processor 475 performs L2 functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using the ACK and / or NACK protocols to support HARQ operations.

[0375] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 is configured to at least receive a first DCI, the first DCI indicating a first cell set; and transmit a target signal; the first cell set includes K1 cells, where K1 is a positive integer greater than 1; a cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are indicated as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0376] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program causing actions when executed by at least one processor, the actions including: receiving a first DCI; transmitting a target signal.

[0377] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 is configured to at least transmit a first DCI, the first DCI indicating a first cell set; and receive a target signal; the first cell set includes K1 cells, where K1 is a positive integer greater than 1; a cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are indicated as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0378] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program causing actions when executed by at least one processor, the actions including: transmitting a first DCI; receiving a target signal.

[0379] As an embodiment, the first node in the present application includes the second communication device 450.

[0380] As an embodiment, the second node in the present application includes the first communication device 410.

[0381] As an example, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, the memory 476} is used to send the first DCI; at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the first DCI.

[0382] As an example, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} is used to send the target signal; at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, the memory 476} is used to receive the target signal.

[0383] Example 5

[0384] Example 5 illustrates a flowchart of transmission between a first node and a second node according to an embodiment of the present application. In the appendix Figure 5 The first node U1 communicates with the second node N2 via a wireless link. The steps in block 51, block F52, and block F53 are optional. It should be specifically noted that the order in this embodiment does not limit the signal transmission order and implementation order in the present application.

[0385] For the first node U1, receive the first information block in step S5110; receive the first DCI in step S510; receive the first signal in the first cell set in step S5120; receive the first reference signal in the first cell in step S5130; send the target signal in step S511.

[0386] For the second node N2, send the first information block in step S5210; send the first DCI in step S520; send the first signal in the first cell set in step S5220; send the first reference signal in the first cell in step S5230; receive the target signal in step S521.

[0387] In Embodiment 5, the first DCI indicates a first cell set; the first cell set includes K1 cells, where K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0388] As an embodiment, the first node U1 is the first node in this application.

[0389] As an embodiment, the second node N2 is the second node in this application.

[0390] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0391] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0392] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0393] As an embodiment, the second node N2 is the serving base station for the serving cell of the first node U1.

[0394] As an embodiment, the second node N2 is the maintaining base station for the first cell set of the first node U1.

[0395] As an embodiment, the step in block F51 in the appendix Figure 5 exists; the method applied to the first node U1 in this application includes: receiving a first information block.

[0396] As an embodiment, the first information block indicates at least one of the symbols that are configured as downlink by TDD uplink-downlink configuration for uplink transmission.

[0397] As an embodiment, the first information block is transmitted through higher layer signaling.

[0398] As an embodiment, the first information block is transmitted through RRC signaling.

[0399] As an embodiment, the first information block includes multiple RRC messages.

[0400] As an embodiment, the first information block is an RRC message.

[0401] As an example, the first information block includes one or more RRC IEs (Information Elements).

[0402] As an example, the first information block includes multiple RRC IEs.

[0403] As an example, the first information block includes one or more fields of each RRC IE among the multiple RRC IEs.

[0404] As an example, the first information block is an RRC IE.

[0405] As an example, the first information block includes one or more fields in an RRC IE.

[0406] As an example, the name of the RRC signaling carrying the first information block includes "TDD".

[0407] As an example, the name of the RRC signaling carrying the first information block includes "DL".

[0408] As an example, the name of the RRC signaling carrying the first information block includes "UL".

[0409] As an example, the name of the RRC signaling carrying the first information block includes "Config".

[0410] As an example, the name of the RRC signaling carrying the first information block includes "SBFD".

[0411] As an example, the name of the RRC signaling carrying the first information block includes "subband".

[0412] As an example, the name of the RRC signaling carrying the first information block includes "duplex".

[0413] As an example, the first information block is transmitted through dynamic signaling.

[0414] As an example, the first information block is transmitted through MAC CE.

[0415] As an example, the first information block is transmitted through physical layer signaling.

[0416] As an example, the first information block is transmitted through layer 1 signaling.

[0417] As an example, the first information block is transmitted through DCI.

[0418] As an embodiment, the first information block is transmitted through the TDD uplink-downlink configuration described in the present application.

[0419] As an embodiment, the first information block includes some or all of the information in the TDD uplink-downlink configuration.

[0420] As an embodiment, the TDD uplink-downlink configuration carries the first information block.

[0421] As an embodiment, the first information block explicitly indicates the time domain position of at least one symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0422] As an embodiment, the first information block implicitly indicates the time domain position of at least one symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0423] As an embodiment, att Figure 5 The steps in block F51 in

[0424] As a sub - embodiment of this embodiment, the first information block is transmitted through the first DCI.

[0425] As a sub - embodiment of this embodiment, the first DCI implicitly indicates at least one symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0426] As a sub - embodiment of this embodiment, the first DCI implicitly indicates that at least one symbol that is indicated as a downlink by the TDD uplink-downlink configuration can be used for uplink transmission.

[0427] As an embodiment, the explicit indication includes explicit configuration.

[0428] As an embodiment, the explicit indication includes directly indicating by the value of a bit field.

[0429] As an embodiment, the implicit indication includes indirectly indicating by indicating other IEs including the TDD uplink-downlink configuration.

[0430] As an embodiment, the implicit indication includes indirectly indicating by scheduling an uplink signal on a symbol that is indicated as a downlink by the TDD uplink-downlink configuration.

[0431] As an embodiment, att Figure 5 The steps in block F52 in

[0432] As an embodiment, the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is the first cell, and the first type of sub-signals transmitted in the first cell are used to determine the DAI (Downlink Assignment Indicator) count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signals transmitted in the first cell.

[0433] As an embodiment, the first signal includes a baseband signal.

[0434] As an embodiment, the first signal includes a radio frequency signal.

[0435] As an embodiment, the first signal includes a wireless signal.

[0436] As an embodiment, the first signal corresponds to a downlink assignment.

[0437] As an embodiment, the first signal is a PDSCH transmission based on dynamic scheduling.

[0438] As an embodiment, the first signal is generated by at least one bit block.

[0439] As an embodiment, the first signal is generated by at least one TB.

[0440] As an embodiment, the first signal includes K1 first type of sub-signals.

[0441] As an embodiment, the first signal includes K1 first type of sub-signals, and the K1 first type of sub-signals are respectively received by the first node U1 in the K1 cells.

[0442] As a sub-embodiment of this embodiment, the K1 physical layer channels occupied by the K1 first type of sub-signals are respectively K1 PDSCHs.

[0443] As a sub-embodiment of this embodiment, the K1 transmission channels occupied by the K1 first type of sub-signals are respectively K1 DL-SCH (DownLink-Shared CHannel)s.

[0444] As a sub-embodiment of this embodiment, any one of the K1 first type of sub-signals is generated by at least one bit block.

[0445] As a sub - embodiment of this embodiment, any one of the K1 first - type sub - signals is generated by at least one TB.

[0446] As a sub - embodiment of this embodiment, the K1 first - type sub - signals respectively correspond to different TBs.

[0447] As a sub - embodiment of this embodiment, the K1 first - type sub - signals respectively correspond to K1 HARQ - ACKs.

[0448] As a sub - embodiment of this embodiment, the K1 first - type sub - signals correspond to the same HARQ - ACK.

[0449] As an embodiment, the target signal includes K3 sub - signals, and the K3 sub - signals are respectively received in K3 of the K1 cells, where K3 is a positive integer greater than 1 and less than K1.

[0450] As a sub - embodiment of this embodiment, the K3 sub - signals respectively occupy K1 PDSCHs.

[0451] As a sub - embodiment of this embodiment, the K3 sub - signals respectively occupy K3 PDSCHs.

[0452] As an embodiment, the first signal is received in one of the K1 cells.

[0453] As an embodiment, the meaning of the behavior "a signal is received on a cell" includes: receiving the signal using the radio air interface resources of the cell.

[0454] As an embodiment, the meaning of the behavior "a signal is received on a cell" includes: receiving the signal in the radio air interface resources corresponding to the cell.

[0455] As an embodiment, the meaning of the behavior "a signal is received on a cell" includes: receiving the signal in the radio air interface resources configured for the cell.

[0456] As an embodiment, attached Figure 5 the steps in block F52 do not exist.

[0457] As a sub - embodiment of this embodiment, the first DCI is a downlink scheduling DCI, and the target signal carrying the HARQ - ACK for the first signal includes NACK.

[0458] As a sub - embodiment of this embodiment, the first DCI is used to schedule the target signal.

[0459] As a sub - embodiment of this embodiment, the first DCI is an uplink scheduling DCI.

[0460] As a sub - embodiment of this embodiment, the first DCI is not used for downlink scheduling.

[0461] As an embodiment, in Figure 5 the steps in block F53 in exist; the method applied to the first node U1 described in this application includes: receiving a first reference signal in a first cell.

[0462] As an embodiment, the first cell is the cell with the smallest serving cell identifier among the cells other than the first - type cells in the first cell set. The measurement for the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

[0463] As an embodiment, the first reference signal includes CSI - RS.

[0464] As an embodiment, the first reference signal is CSI - RS.

[0465] As an embodiment, the first reference signal includes NZP (Non - Zero Power) CSI - RS.

[0466] As an embodiment, the first reference signal is NZP CSI - RS.

[0467] As an embodiment, the first reference signal includes SSB.

[0468] As an embodiment, the first reference signal is SSB.

[0469] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block, the synchronization signal block.

[0470] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast CHannel) block, the synchronization signal / physical broadcast channel block.

[0471] Typically, the reception opportunities of PBCH, PSS (Primary Synchronization Signal), and SSS (Secondary Synchronization Signal) are in consecutive symbols and form an SS / PBCH block.

[0472] As an example, the first reference signal is associated with a CSI-RS resource.

[0473] As a sub-example of this example, the CSI request field included in the first DCI is used to indicate the CSI-RS resource.

[0474] As an example, the first DCI triggers the report of the first CSI.

[0475] As an example, the first DCI triggers the transmission of the first CSI.

[0476] As an example, the first DCI indicates the trigger state of the first CSI.

[0477] As an example, the first DCI indicates the trigger state of the CSI-ReportConfig corresponding to the first CSI.

[0478] As an example, the trigger state of the CSI-ReportConfig corresponding to the first CSI is configured by RRC signaling.

[0479] As an example, the trigger state of the CSI-ReportConfig corresponding to the first CSI is configured by the CSI-AperiodicTriggerStateList IE.

[0480] As an example, among the cells outside the first type of cells in the first cell set, the cell with the smallest serving cell identifier is the first cell. The first DCI includes a CSI request field, and the CSI request field is for the first cell.

[0481] As a sub-example of this example, the first DCI includes only one CSI request field.

[0482] As a sub-example of this example, the CSI request field for the cells in the first cell set and outside the first cell is default.

[0483] As a sub-example of this example, the CSI request field triggers the transmission of the first CSI.

[0484] As a sub-example of this example, the CSI request field includes at least one bit.

[0485] As a sub - embodiment of this embodiment, the CSI request field indicates the triggering status of the first CSI.

[0486] As a sub - embodiment of this embodiment, the CSI request field indicates the triggering status of the CSI - ReportConfig corresponding to the first CSI.

[0487] As an embodiment, the first CSI includes CQI (Channel Quality Indicator).

[0488] As an embodiment, the first CSI includes a wideband CQI.

[0489] As an embodiment, the first CSI includes at least one subband CQI.

[0490] As an embodiment, the first CSI includes RI (Rank Indicator).

[0491] As an embodiment, the first CSI includes CRI (CSI - RS Resource Indicator).

[0492] As an embodiment, the first CSI includes PMI (Precoding Matrix Indicator).

[0493] As an embodiment, the first CSI includes at least one of CQI, PMI, CRI, RI, LI (Layer Indicator), SSBRI (SSB resource indicator), L1 - RSRP (Layer 1 - Reference Signal Received Power), L1 - SINR (Layer 1 - Signal - to - Interference and Noise Ratio), capability index or capability set index.

[0494] As an embodiment, the first CSI is Aperiodic (AP).

[0495] As an embodiment, the CSI - ReportConfig corresponding to the first CSI is aperiodic.

[0496] As an example, the measurement of the first reference signal includes channel measurement.

[0497] As an example, the measurement of the first reference signal is a channel measurement.

[0498] As an example, the measurement of the first reference signal includes interference measurement.

[0499] As an example, the first node obtains channel measurement for calculating the first CSI based on the measurement of the first reference signal.

[0500] As an example, the first node obtains interference measurement for calculating the first CSI based on the measurement of the first reference signal.

[0501] Generally speaking, how to calculate CSI is determined by the hardware device manufacturer itself. Taking CQI as an example, a non-limiting implementation method is introduced as follows:

[0502] The first node first performs channel measurement on a CSI-RS resource to obtain a channel parameter matrix H r×t , where r and t are the number of receiving antennas and the number of antenna ports for transmission respectively; under the condition of using a precoding matrix W t×l , the precoded channel parameter matrix is h r×t ·W t×l , where l is the rank or the number of layers; calculate the equivalent channel capacity of H r×t ·W t×l using criteria such as SINR, EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio), and then determine CQI by looking up a table or other means from the equivalent channel capacity. Generally speaking, the calculation of the equivalent channel capacity requires the first node to estimate noise and interference. Usually, the mapping between the equivalent channel capacity and the CQI value depends on receiver performance, or hardware-related factors such as the modulation method. The precoding matrix W t×l is usually fed back by the first node through RI or PMI.

[0503] Compared with CQI, L1-SINR does not carry information about the receiver, so the calculation of the above equivalent channel capacity is omitted.

[0504] As an example, the measurement of the first reference signal is used to estimate the channel parameter matrix H r×t .

[0505] As an example, the measurement of the first reference signal is used to estimate interference and / or noise.

[0506] As an example, the first node U1 receives the first reference signal only in the first cell.

[0507] As an example, the first node U1 transmits the target signal in the first cell.

[0508] As an example, the first node U1 transmits the first CSI in the first cell.

[0509] As an example, the steps in block F53 in Appendix Figure 5 do not exist.

[0510] As a sub - example of this example, the first DCI does not include a CSI request field.

[0511] As a sub - example of this example, the CSI request field of the first DCI is set to all 0s.

[0512] As an example, the blocks F51 and F52 in Appendix Figure 5 both exist.

[0513] As an example, the blocks F51 and F53 in Appendix Figure 5 both exist.

[0514] As an example, the blocks F52 and F53 in Appendix Figure 5 cannot exist simultaneously.

[0515] As an example, the steps in blocks F51, F52, and F53 in Appendix Figure 5 do not exist.

[0516] As an example, the steps in blocks F51, F52, and F53 in Appendix Figure 5 do not exist, the step S510 is before the step S511, and the step S520 is before the step S521.

[0517] As an example, the step in block F51 in Appendix Figure 5 exists, the step S5210 is before the step S520, and the step S5110 is before the step S510.

[0518] As an embodiment, attached Figure 5 the steps in block F52 in exist, the step S5220 is after the step S520; the step S5120 is after the step S510; the step S5220 is before the step S521, and the step S5120 is before the step S511.

[0519] As a sub - embodiment of this embodiment, attached Figure 5 the steps in block F53 in do not exist.

[0520] As a sub - embodiment of this embodiment, attached Figure 5 the steps in block F51 in exist, the step S5210 is before the step S520, and the step S5110 is before the step S510.

[0521] As an embodiment, attached Figure 5 the steps in block F53 in exist, the step S5230 is after the step S520, the step S5130 is after the step S510; the step S5230 is before the step S521, and the step S5130 is before the step S511.

[0522] As a sub - embodiment of this embodiment, attached Figure 5 the steps in block F52 in do not exist.

[0523] As a sub - embodiment of this embodiment, attached Figure 5 the steps in block F51 in exist, the step S5210 is before the step S520, and the step S5110 is before the step S510.

[0524] As an embodiment, the first DCI is transmitted on a downlink physical control channel (i.e., a downlink channel that can only be used to carry physical layer control signaling).

[0525] As an embodiment, the physical layer channel occupied by the first DCI includes PDCCH (Physical Downlink Control CHannel).

[0526] As an embodiment, the physical layer channel occupied by the target signal includes at least one PUCCH.

[0527] As an embodiment, the physical layer channel occupied by the target signal includes at least one PUSCH.

[0528] As an embodiment, the transport channel occupied by the target signal includes UL - SCH.

[0529] As an embodiment, the transmission channel occupied by the target signal does not include the UL-SCH.

[0530] As an embodiment, the first information block is transmitted on a downlink physical control channel (i.e., a downlink channel that can only be used to carry physical layer control signaling).

[0531] As an embodiment, the physical layer channel occupied by the first information block includes the PDCCH.

[0532] As an embodiment, the first information block is transmitted on a downlink physical data channel (i.e., a downlink channel that can be used to carry physical layer data).

[0533] As an embodiment, the physical layer channel occupied by the first information block includes the PDSCH.

[0534] As an embodiment, the first signal is transmitted on a downlink physical data channel (i.e., a downlink channel that can be used to carry physical layer data).

[0535] As an embodiment, the physical layer channel occupied by the first signal includes the PDSCH.

[0536] As an embodiment, the transmission channel occupied by the first signal includes the DL-SCH.

[0537] Example 6

[0538] Embodiment 6 exemplifies a schematic diagram of symbols indicated as downlink by the TDD uplink-downlink configuration for uplink transmission according to an embodiment of the present application, as shown in the appendix Figure 6 shown. In the appendix Figure 6 , the horizontal axis represents time, and the vertical axis represents frequency; the region filled with vertical lines represents the time-domain resources occupied by the symbols indicated as downlink by the TDD uplink-downlink configuration in time, the region filled with horizontal lines represents the time-domain resources occupied by the symbols indicated as uplink by the TDD uplink-downlink configuration in time, the unfilled region represents the time-domain resources indicated as flexible by the TDD uplink-downlink configuration in time, the region filled with solid gray represents the first sub-band, and the region occupied by the first sub-band represents the frequency-domain resources that can be used for uplink transmission among the symbols indicated as downlink and flexible by the TDD uplink-downlink configuration, and the first type of symbols represents the symbols indicated as downlink for uplink transmission by the TDD uplink-downlink configuration and the symbols indicated as flexible for uplink transmission by the TDD uplink-downlink configuration.

[0539] As an embodiment, the first sub-band occupies continuous frequency-domain resources.

[0540] As an embodiment, guardbands exist on both sides or one side of the first subband in the frequency domain.

[0541] As an embodiment, guardbands do not exist on both sides of the first subband in the frequency domain.

[0542] As a sub - embodiment of the above two embodiments, the guardbands are not used for uplink transmission or downlink transmission.

[0543] As an embodiment, the first subband includes guardbands.

[0544] As an embodiment, the first subband does not include guardbands.

[0545] As an embodiment, the first subband is an SBFD subband.

[0546] As an embodiment, one SBFD subband described in this application is used for uplink transmission.

[0547] As an embodiment, one SBFD subband described in this application can (or may or is allowed to) be used for uplink transmission.

[0548] As an embodiment, one SBFD subband described in this application is a UL subband.

[0549] As an embodiment, the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission.

[0550] As an embodiment, the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission is actually used for uplink transmission.

[0551] As an embodiment, the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission is not actually used for uplink transmission.

[0552] As an embodiment, the first information block indicates that the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission.

[0553] As an embodiment, the first information block indicates that the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission is actually used for uplink transmission.

[0554] As an embodiment, the first information block indicates that the symbol indicated as a downlink by the TDD uplink - downlink configuration for uplink transmission is not actually used for uplink transmission.

[0555] As an example, the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission on the first sub-band.

[0556] As an example, the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is actually used for uplink transmission on the first sub-band.

[0557] As an example, the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is not actually used for uplink transmission on the first sub-band.

[0558] As an example, the first information block indicates that the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission on the first sub-band.

[0559] As an example, the first information block indicates that the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is actually used for uplink transmission on the first sub-band.

[0560] As an example, the first information block indicates that the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is not actually used for uplink transmission on the first sub-band.

[0561] As an example, the first information block configures the first sub-band among the symbols that are indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0562] As an example, the first information block indicates that the first sub-band among the symbols that are indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is enabled.

[0563] As an example, the first information block indicates that the first sub-band for uplink transmission is enabled on at least one of the symbols that are indicated as a downlink by the TDD uplink-downlink configuration.

[0564] As an example, the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission is used for both transmission and reception simultaneously.

[0565] As an example, the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission supports simultaneous uplink and downlink transmission.

[0566] As an example, the sender of the first DCI simultaneously receives and transmits wireless signals on the symbol that is indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0567] As an embodiment, the sender of the first DCI performs uplink transmission and downlink transmission simultaneously on the symbol indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0568] As an embodiment, the sender of the first DCI receives a wireless signal on the frequency-domain resources included in the first sub-band of the symbol indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission, and transmits a wireless signal on the frequency-domain resources outside the frequency-domain resources included in the first sub-band.

[0569] As an embodiment, the sender of the first DCI performs uplink transmission on the frequency-domain resources included in the first sub-band of the symbol indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission, and performs downlink transmission on the frequency-domain resources outside the frequency-domain resources included in the first sub-band.

[0570] As an embodiment, the symbol indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission includes an SBFD symbol.

[0571] As an embodiment, the symbol indicated as a downlink by the TDD uplink-downlink configuration for uplink transmission includes a Full Duplex symbol.

[0572] Example 7

[0573] Embodiment 7 exemplifies a schematic diagram of a first cell set and a first cell according to an embodiment of the present application, as shown in the appendix Figure 7 shown. In the appendix Figure 7 In it, the horizontal axis represents the serving cell identifier, and a rectangle represents a cell. Among them, a cross-filled rectangle represents a first type of cell in the first cell set, and a non-filled rectangle represents a cell other than the first type of cell in the first cell set.

[0574] In Embodiment 7, the first cell is the cell with the smallest serving cell identifier among the cells other than the first type of cell in the first cell set.

[0575] As an embodiment, the first cell is the cell with the smallest serving cell identifier among the cells other than the first type of cell in the first cell set.

[0576] As an embodiment, the first cell is a serving cell.

[0577] As an embodiment, the first node performs secondary serving cell addition for the first cell.

[0578] As an example, the first cell included in the most recently received sCellToAddModList or sCellToAddModListSCG by the first node is the first cell.

[0579] As an example, the first node is allocated an SCellIndex or ServCellIndex for the first cell.

[0580] As an example, an RRC connection has been established between the first node and the first cell.

[0581] As an example, the C-RNTI of the first node is allocated by the first cell.

[0582] As an example, the C-RNTI of the first node is not allocated by the first cell.

[0583] As an example, the first cell is the SpCell or SCell of the first node.

[0584] As an example, the first cell is a CC.

[0585] As an example, the first cell is a carrier.

[0586] As an example, for at least one BWP of the first cell, the first reference signal in this application is received by the first node in one BWP among at least one BWP targeted by the first cell.

[0587] As an example, any symbol in the first cell is a half-duplex symbol.

[0588] As an example, the first cell does not include symbols indicated as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0589] As an example, the first cell does not include symbols indicated as flexible by the TDD uplink-downlink configuration for uplink transmission.

[0590] As an example, the first cell does not include symbols indicated as downlink by the TDD uplink-downlink configuration for uplink transmission, and the first cell does not include symbols indicated as flexible by the TDD uplink-downlink configuration for uplink transmission.

[0591] As an example, the first cell does not include full-duplex symbols.

[0592] As an example, the first cell does not include SBFD symbols.

[0593] As an example, the first cell does not support full duplex.

[0594] As an example, the first cell does not support SBFD.

[0595] As an example, the first cell supports full duplex, and the first cell does not include full duplex symbols.

[0596] As an example, the first cell supports SBFD, and the first cell does not include SBFD symbols.

[0597] As an example, the first cell set includes the first cell.

[0598] As an example, the first cell belongs to the first cell set.

[0599] As an example, the first cell is a cell outside the first type of cells in the first cell set.

[0600] As an example, any of the first type of cells in the first cell set is not the first cell.

[0601] As an example, the first cell set includes at least one cell outside the first type of cells, and the cell with the smallest serving cell identifier among the at least one cell outside the first type of cells is the first cell.

[0602] As an example, the first cell set includes a cell outside the first type of cells and at least one of the first type of cells, and the cell outside the first type of cells is the first cell.

[0603] As an example, the first cell set only includes cells outside the first type of cells, and the cell with the smallest serving cell identifier among the cells outside the first type of cells is the first cell.

[0604] As an example, there is a serving cell identifier of a first type of cell in the first cell set that is greater than the first cell.

[0605] As an example, there is a serving cell identifier of a first type of cell in the first cell set that is less than the first cell.

[0606] Example 8

[0607] Example 8 exemplifies a schematic diagram of the relationship between a first DCI and a target signal according to an embodiment of the present application, as shown in the appendix Figure 8 shown. In the appendix Figure 8Among them, the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0608] As an embodiment, the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0609] As an embodiment, the UL-SCH refers to UpLink-Shared CHannel, the uplink shared channel.

[0610] As an embodiment, the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0611] As an embodiment, the target signal occupies the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set, and the first DCI indicates whether the UL-SCH of the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is transmitted on the PUSCH.

[0612] As an embodiment, when the first DCI indicates that the UL-SCH is transmitted on the PUSCH, the target signal occupies the UL-SCH.

[0613] As an embodiment, when the first DCI indicates that the UL-SCH is not transmitted on the PUSCH, the target signal occupies a channel other than the UL-SCH.

[0614] As a sub-embodiment of this embodiment, the target signal occupies the PUCCH.

[0615] As a sub-embodiment of this embodiment, the target signal occupies a UL-SCH transmission other than the UL-SCH indicated by the first DCI.

[0616] As a sub-embodiment of this embodiment, the target signal occupies a PUSCH transmission other than the PUSCH corresponding to the UL-SCH indicated by the first DCI.

[0617] As an embodiment, the target signal includes K1 target sub-signals. The first target sub-signal among the K1 target sub-signals occupies the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set. The first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the first target sub-signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0618] As a sub-embodiment of this embodiment, for the target sub-signals among the K1 target sub-signals other than the first target sub-signal, they do not depend on whether the UL-SCH indicated by the first DCI is transmitted on the PUSCH.

[0619] As a sub-embodiment of this embodiment, for the target sub-signals among the K1 target sub-signals other than the first target sub-signal, whether the UL-SCH is transmitted on the PUSCH is predefined.

[0620] As a sub-embodiment of this embodiment, for the target sub-signals among the K1 target sub-signals other than the first target sub-signal, whether the UL-SCH is transmitted on the PUSCH is default.

[0621] As an embodiment, the target signal includes K1 target sub-signals. The first target sub-signal among the K1 target sub-signals occupies the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set. The first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the UL-SCH is transmitted on the PUSCH. The first target sub-signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0622] As an embodiment, the target signal includes K1 target sub-signals. The first target sub-signal among the K1 target sub-signals occupies the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set. When the first DCI indicates that the UL-SCH is transmitted on the PUSCH, the first target sub-signal occupies the UL-SCH.

[0623] As an embodiment, the target signal includes K1 target sub-signals. The first target sub-signal among the K1 target sub-signals occupies the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set. When the first DCI indicates that the UL-SCH is not transmitted on the PUSCH, the first target sub-signal occupies a channel other than the UL-SCH.

[0624] As a sub - embodiment of this embodiment, the first target sub - signal occupies the PUCCH.

[0625] As a sub - embodiment of this embodiment, the first target sub - signal occupies a UL - SCH transmission other than the UL - SCH indicated by the first DCI.

[0626] As a sub - embodiment of this embodiment, the first target sub - signal occupies a PUSCH transmission other than the PUSCH corresponding to the UL - SCH indicated by the first DCI.

[0627] As an embodiment, the "cell with the smallest serving cell identifier among the cells other than the first - type cells in the first cell set" in this embodiment is the first cell described in Embodiment 7 of this application.

[0628] Example 9

[0629] Embodiment 9 exemplifies a schematic diagram of the relationship between the first signal and the target signal according to an embodiment of this application, as shown in the appendix. Figure 9 shown. In the appendix Figure 9 the target signal carries HARQ - ACK for the first signal; the first - type sub - signals transmitted in the first cell are used to determine the DAI count of the HARQ - ACK carried by the target signal; the first signal includes the first - type sub - signals transmitted in the first cell.

[0630] In Embodiment 9, the first cell is the cell with the smallest serving cell identifier among the cells other than the first - type cells in the first cell set; the first cell is the first cell described in Embodiment 7 of this application.

[0631] As an embodiment, the DAI refers to: Downlink Assignment Index, the downlink assignment index.

[0632] As an embodiment, the DAI refers to: Downlink Assignment Index field, the downlink assignment index field.

[0633] As an embodiment, the first cell is the first cell described in Embodiment 7 of this application.

[0634] As an embodiment, the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell, and the first type of sub-signals transmitted in the first cell are used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signals transmitted in the first cell.

[0635] As an embodiment, the first type of sub-signals transmitted in the first cell are used to determine the DAI count of the HARQ-ACK carried by the target signal.

[0636] As an embodiment, the first type of sub-signals transmitted in the first cell are used to determine the number of bits of the HARQ-ACK carried by the target signal.

[0637] As an embodiment, the first type of sub-signals transmitted in the first cell are used to determine the time-domain resources occupied by the physical layer channel of the HARQ-ACK carried by the target signal.

[0638] As an embodiment, the first type of sub-signals transmitted in the first cell are used to determine the frequency-domain resources occupied by the physical layer channel of the HARQ-ACK carried by the target signal.

[0639] As an embodiment, the DAI field corresponding to the first type of sub-signals transmitted in the first cell is used to determine the DAI count of the HARQ-ACK carried by the target signal.

[0640] As an embodiment, the DAI field corresponding to the first type of sub-signals transmitted in the first cell is the number of bits of the HARQ-ACK carried by the target signal.

[0641] As an embodiment, the DAI field corresponding to the first type of sub-signals transmitted in the first cell is the DAI count of the HARQ-ACK carried by the target signal.

[0642] As an embodiment, the first DCI only includes one DAI field, and the DAI field included in the first DCI indicates the first type of sub-signals transmitted in the first cell.

[0643] As a sub-embodiment of this embodiment, the DAI field included in the first DCI indicates the DAI count of the HARQ-ACK carried by the target signal.

[0644] As an embodiment, the first DCI includes a DAI field, and the DAI field is for the first signal.

[0645] Example 10

[0646] Embodiment 10 exemplifies a schematic diagram of the relationship between the first type of sub-signal transmitted in the first cell according to an embodiment of the present application and the target signal, as shown in the appendix Figure 10 shown. In the appendix Figure 10 the sub-signal transmitted in the first cell is used to determine the target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0647] As an embodiment, the PUCCH refers to: Physical Uplink Control CHannel, the physical uplink control channel.

[0648] As an embodiment, the sub-signal transmitted in the first cell is used to determine the target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0649] As an embodiment, the DCI format corresponding to the sub-signal transmitted in the first cell is the target DCI format.

[0650] As an embodiment, the target DCI format is the last DCI format.

[0651] As an embodiment, the target DCI format is the first DCI format.

[0652] As an embodiment, the target DCI format is DCI format 1_X, where X is a positive integer greater than 2.

[0653] As an embodiment, the target DCI format is used to determine the PUCCH resources occupied by the target signal.

[0654] As an embodiment, the target DCI format is used to determine the set of PUCCH resources occupied by the target signal.

[0655] As an embodiment, the target DCI format is used to determine the position of the time domain resources occupied by the PUCCH occupied by the target signal.

[0656] As an embodiment, the target DCI format is used to determine the position of the frequency domain resources occupied by the PUCCH occupied by the target signal.

[0657] As an embodiment, the target DCI format indicates the PUCCH resources occupied by the target signal.

[0658] As an embodiment, the target DCI format indicates the PUCCH resource set occupied by the target signal.

[0659] As an embodiment, the target DCI format indicates the position of the time-domain resource occupied by the PUCCH occupied by the target signal.

[0660] As an embodiment, the target DCI format indicates the position of the frequency-domain resource occupied by the PUCCH occupied by the target signal.

[0661] Example 11

[0662] Embodiment 11 exemplifies a schematic diagram of a first domain set according to an embodiment of the present application, as shown in the appendix Figure 11 as shown. In the appendix Figure 11 shown, the first DCI includes a first domain set, and the domains in the first domain set are respectively denoted as domain #1,..., domain #F, where F is a positive integer; the domains in the first domain set included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0663] As an embodiment, the first DCI includes a first domain set, and the domains in the first domain set included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0664] As an embodiment, the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell described in Embodiment 7 of the present application.

[0665] As an embodiment, the first domain set included in the first DCI includes only one domain.

[0666] As an embodiment, the first domain set included in the first DCI includes multiple domains.

[0667] As an embodiment, any domain in the first domain set included in the first DCI includes at least one bit.

[0668] As an embodiment, the first domain set included in the first DCI includes a DAI domain.

[0669] As an embodiment, the first domain set included in the first DCI includes a HARQ process number domain.

[0670] As an example, the first domain set included in the first DCI includes a CSI Request domain.

[0671] As an example, the first domain set included in the first DCI includes a UL-SCH indicator domain.

[0672] As an example, the format of the first DCI is DCI format 0_X, and the first domain set included in the first DCI includes at least one of a CSI Request domain and a UL-SCH indicator, where X is a positive integer greater than 2.

[0673] As an example, the first DCI is used to schedule the target signal, and the first domain set included in the first DCI includes at least one of a CSI Request domain and a UL-SCH indicator.

[0674] As an example, the first DCI is used to schedule an uplink signal, and the first domain set included in the first DCI includes at least one of a CSI Request domain and a UL-SCH indicator.

[0675] As an example, the format of the first DCI is DCI format 1_X, and the first domain set included in the first DCI includes at least one of a CSI Request domain and a UL-SCH indicator, where X is a positive integer greater than 2.

[0676] As an example, the first DCI is used to schedule the first signal, and the first domain set included in the first DCI includes at least one of a HARQ process number and a DAI domain.

[0677] As an example, the first DCI is used to schedule a downlink signal, and the first domain set included in the first DCI includes at least one of a HARQ process number domain and a DAI domain.

[0678] As an example, the first DCI is used to schedule the first signal, and the first domain set included in the first DCI includes a DAI domain.

[0679] As an example, the first DCI is used to schedule a downlink signal, and the first domain set included in the first DCI includes a DAI domain.

[0680] Example 12

[0681] Embodiment 12 exemplifies a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in the appendix Figure 12 as follows. In the appendix Figure 12 , the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0682] In Embodiment 12, the first receiver 1201 receives a first DCI, and the first DCI indicates a first cell set; the first transmitter 1202 transmits a target signal.

[0683] In Embodiment 12, the first cell set includes K1 cells, where K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are indicated as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0684] As an embodiment, the first receiver 1201 receives a first reference signal in a first cell; the first cell is the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set, and the measurement for the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

[0685] As an embodiment, the first DCI indicates whether the target signal is transmitted on the PUSCH.

[0686] As an embodiment, the first receiver 1201 receives a first signal in the first cell set; the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell, and the first type of sub-signals transmitted in the first cell are used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signals transmitted in the first cell.

[0687] As an embodiment, the sub-signals transmitted in the first cell are used to determine a target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0688] As an embodiment, the sub-signals transmitted in the first cell are used to determine a target DCI format, and the target DCI format indicates the PUCCH occupied by the target signal.

[0689] As an example, the first receiver 1201 receives a first information block; the first information block indicates at least one symbol that is configured as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0690] As an example, the first DCI includes a first set of fields, and the fields in the first set of fields included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0691] As an example, the first type of cells further includes symbols that are configured as flexible by the TDD uplink-downlink configuration for uplink transmission.

[0692] As an example, all cells in the first cell set belong to the same PUCCH group.

[0693] As an example, the first DCI indicates whether the UL-SCH is transmitted on the PUSCH.

[0694] As an example, the first DCI indicates whether the UL-SCH occupies the PUSCH.

[0695] As an example, the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0696] As an example, the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the target signal occupies the UL-SCH.

[0697] As an example, the first information block indicates that the symbol configured as a downlink by the TDD uplink-downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission on the first subband.

[0698] As a sub-example of this example, the first subband occupies continuous frequency domain resources; the first subband is an SBFD subband; the one SBFD subband can (or may or is allowed to) be used for uplink transmission.

[0699] As an example, the first node is a user equipment.

[0700] As an example, the first node is a relay node device.

[0701] As an example, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0702] As an example, the first transmitter 1202 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0703] Example 13

[0704] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in the appendix Figure 13 as shown. In the appendix Figure 13 the processing device 1300 in the second node includes a second transmitter 1301 and a second receiver 1302.

[0705] In Embodiment 13, the second transmitter 1301 transmits a first DCI, and the first DCI indicates a first cell set; the second receiver 1302 receives a target signal.

[0706] In Embodiment 13, the first cell set includes K1 cells, where K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols that are indicated as downlink by the TDD uplink-downlink configuration for uplink transmission.

[0707] As an example, the second transmitter 1301 transmits a first reference signal in a first cell; the first cell is the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set, and the measurement of the receiver for the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

[0708] As an example, the first DCI indicates whether the target signal is transmitted on the PUSCH.

[0709] As an embodiment, the second transmitter 1301 transmits a first signal in the first cell set; the target signal carries a HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set is the first cell, and the first type of sub-signals transmitted in the first cell are used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signals transmitted in the first cell.

[0710] As an embodiment, the sub-signals transmitted in the first cell are used to determine a target DCI format, and the target DCI format is used to determine the PUCCH occupied by the target signal.

[0711] As an embodiment, the sub-signals transmitted in the first cell are used to determine a target DCI format, and the target DCI format indicates the PUCCH occupied by the target signal.

[0712] As an embodiment, the second transmitter 1301 transmits a first information block; the first information block indicates at least one symbol that is configured as a downlink by the TDD uplink-downlink configuration for uplink transmission.

[0713] As an embodiment, the first DCI includes a first set of fields, and the fields in the first set of fields included in the first DCI are applied to the cell with the smallest serving cell identifier among the cells other than the first type of cells in the first cell set.

[0714] As an embodiment, the first type of cells further includes symbols that are configured as flexible by the TDD uplink-downlink configuration for uplink transmission.

[0715] As an embodiment, all cells in the first cell set belong to the same PUCCH group.

[0716] As an embodiment, the first DCI indicates whether the UL-SCH is transmitted on the PUSCH.

[0717] As an embodiment, the first DCI indicates whether the UL-SCH occupies the PUSCH.

[0718] As an embodiment, the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

[0719] As an example, the first DCI includes a UL-SCH indicator field, and the UL-SCH indicator field included in the first DCI indicates whether the target signal occupies the UL-SCH.

[0720] As an example, the first information block indicates that the symbol configured as a downlink by the TDD uplink-downlink configuration for uplink transmission can (or may or is allowed to) be used for uplink transmission on the first subband.

[0721] As a sub-example of this example, the first subband occupies continuous frequency-domain resources; the first subband is an SBFD subband; the SBFD subband can (or may or is allowed to) be used for uplink transmission.

[0722] As an example, the second node is a base station device.

[0723] As an example, the second node is a user equipment.

[0724] As an example, the second node is a relay node device.

[0725] As an example, the second transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Example 4.

[0726] As an example, the second receiver 1302 includes at least one of {antenna 420, receiver / 418, receive processor 470, multi-antenna receive processor 472, controller / processor 475, memory 476} in Example 4.

[0727] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of the combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote control planes, aircraft, small airplanes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, transportation vehicles, vehicles, RSU, wireless sensors, network cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system device in this application includes, but is not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSU, drones, test equipment, such as transceiver devices or signaling testers that simulate some functions of base stations, and other wireless communication devices.

[0728] Those skilled in the art should understand that the present invention can be implemented in other specified forms without departing from its core or basic characteristics. Therefore, the currently disclosed embodiments should be considered as illustrative rather than restrictive in any case. The scope of the invention is determined by the appended claims rather than the previous description, and all modifications within the equivalent meaning and scope thereof are considered to be included therein.

Claims

1. A method used in a terminal, characterized in that: include: receiving a first DCI, where the first DCI indicates a first cell set; Sending target signal; Among them, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols for uplink transmission that are indicated as downlink by the TDD uplink and downlink configuration.

2. The method according to claim 1, characterized in that include: receiving a first reference signal in a first cell; The first cell is a cell having the smallest serving cell identifier among cells other than the first type of cells in the first cell set, measurement of the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

3. The method according to any one of claims 1 or 2, characterized in that: The first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

4. The method according to claim 1, characterized in that: include: Receiving a first signal in the first set of cells; The target signal carries a HARQ-ACK for the first signal; The cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is the first cell, and the first type of sub-signal transmitted in the first cell is used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signal transmitted in the first cell.

5. The method according to claim 4, characterized in that The sub-signal transmitted in the first cell is used to determine a target DCI format, and the target DCI format is used to determine a PUCCH occupied by the target signal.

6. The method according to any one of claims 1 to 5, characterized in that: include: receiving a first information block; The first information block indicates at least one symbol used for uplink transmission and indicated as a downlink symbol by the TDD uplink and downlink configuration.

7. The method according to any one of claims 1 to 6, characterized in that: The first DCI includes a first domain set, and the domains in the first domain set included in the first DCI are applied to the cell with the smallest serving cell identifier among cells other than the first type of cells in the first cell set.

8. A terminal, characterized in that: The terminal includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method according to any one of claims 1 to 7.

9. A method used in a base station, characterized in that: include: Sending a first DCI, where the first DCI indicates a first cell set; receiving target signals; Among them, the first cell set includes K1 cells, and K1 is a positive integer greater than 1; the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is used to determine the target signal; the first type of cells includes symbols for uplink transmission that are indicated as downlink by the TDD uplink and downlink configuration.

10. The method according to claim 9, characterized in that include: Sending a first reference signal in a first cell; The first cell is a cell with the smallest serving cell identifier among cells outside the first type of cells in the first cell set, measurement of the first reference signal by a receiver of the first reference signal is used to generate a first CSI, and the target signal includes the first CSI.

11. The method according to claim 9 or 10, characterized in that: The first DCI indicates whether the UL-SCH is transmitted on the PUSCH, and the target signal depends on whether the UL-SCH is transmitted on the PUSCH.

12. The method according to claim 9, characterized in that include: Sending a first signal in the first cell set; The target signal carries HARQ-ACK for the first signal; the cell with the smallest serving cell identifier among the cells outside the first type of cells in the first cell set is the first cell, and the first type of sub-signal transmitted in the first cell is used to determine the DAI count of the HARQ-ACK carried by the target signal; the first signal includes the first type of sub-signal transmitted in the first cell.

13. The method according to claim 12, characterized in that The sub-signal transmitted in the first cell is used to determine a target DCI format, and the target DCI format is used to determine a PUCCH occupied by the target signal.

14. The method according to any one of claims 9 to 13, characterized in that include: Sending a first information block; The first information block indicates at least one symbol used for uplink transmission and indicated as a downlink symbol by the TDD uplink and downlink configuration.

15. The method according to any one of claims 9 to 14, characterized in that The first DCI includes a first domain set, and the domains in the first domain set included in the first DCI are applied to the cell with the smallest serving cell identifier among cells other than the first type of cells in the first cell set.

16. A base station, characterized in that: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the base station to perform the method according to any one of claims 9 to 15.

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