Data transmission method, communication node and storage medium

Abstract

The invention provides a data transmission method, a communication node and a storage medium. The method comprises the following steps: receiving frame structure configuration of each sub-band on a frequency domain; and transmitting data according to the frame structure configuration.

Description

Technical Field

[0001] This application relates to the field of wireless communication technologies, for example, to a data transmission method, a communication node, and a storage medium. Background Art

[0002] The fifth-generation mobile communication (5G) new radio (NR) system has introduced subband full duplex (SBFD). Considering that 6G communication systems may natively support duplexing, which can be subband full duplex (SBFD) or in-band full duplex (IBFD), the existing frame structure that only considers the time domain is no longer applicable, and a frame structure applicable to both time and frequency dimensions needs to be redesigned. Summary of the Invention

[0003] This application provides a data transmission method, a communication node, and a storage medium.

[0004] An embodiment of this application provides a data transmission method applied to a terminal, including:

[0005] Receiving the frame structure configuration of each subband in the frequency domain;

[0006] Transmitting data according to the frame structure configuration.

[0007] An embodiment of this application provides a data transmission method applied to a network node, including:

[0008] Configuring and transmitting the frame structure configuration of each subband in the frequency domain;

[0009] Transmitting data according to the frame structure configuration.

[0010] An embodiment of this application further provides a communication node, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the above data transmission method is implemented.

[0011] An embodiment of this application further provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above data transmission method is implemented. Description of the Drawings

[0012] Figure 1 A schematic diagram of an SFI signaling format provided for an embodiment;

[0013] Figure 2 A flowchart of a data transmission method provided for an embodiment;

[0014] Figure 3 Schematic diagram of a frame structure provided for an embodiment

[0015] Figure 4 Schematic diagram of another frame structure provided for an embodiment

[0016] Figure 5 Schematic diagram of another SFI signaling format provided for an embodiment;

[0017] Figure 6 Flowchart of another data transmission method provided for an embodiment;

[0018] Figure 7 Schematic diagram of the structure of a data transmission device provided for an embodiment;

[0019] Figure 8 Schematic diagram of the structure of another data transmission device provided for an embodiment;

[0020] Figure 9 Schematic diagram of the hardware structure of a communication node provided for an embodiment. Detailed implementation manners

[0021] The present application will be described below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be arbitrarily combined with each other. Additionally, it should be noted that for the sake of description, only parts related to the present application rather than all structures are shown in the accompanying drawings.

[0022] The NR system has the following three frame structure configurations:

[0023] 1. Semi-static cell-specific frame structure configuration;

[0024] 2. Semi-static UE-specific frame structure configuration;

[0025] 3. Dynamic group common frame structure configuration.

[0026] Among them, the semi-static Cell-specific frame structure configuration is configured through the TDD mode uplink and downlink common configuration signaling (tdd-UL-DL-ConfigurationCommmon), and the semi-static UE-specific frame structure configuration is configured through the TDD mode uplink and downlink dedicated configuration signaling (tdd-UL-DL-ConfigDedicated). The dynamic Group common frame structure configuration is the Downlink Control Information (DCI) format 2_0, that is, the Slot Format Indication (SFI). For the semi-static Cell-specific frame structure, the slot configuration in NR is configured in the tdd-UL-DL-ConfigurationCommmon signaling and is cell-specific. That is to say, all UEs resident on the serving cell receive the same slot configuration.

[0027] The semi-static UE-specific frame structure configuration is configured through the tdd-UL-DL-ConfigDedicated signaling.

[0028] For the dynamic frame structure configured by the Group common signaling, SFI is an optional function. If the UE needs to receive both the semi-static frame structure configuration and the dynamic frame structure configuration, then SFI is meaningful only on the flexible symbol "F" slots of the semi-static frame structure configuration. That is to say, SFI can only reconfigure the F slots. Figure 1 It is a schematic diagram of an SFI signaling format. As can be seen from Figure 1 the DCI format 2-0 signaling includes N + 1 SFI block indices, SFI_index0 to SFI_indexN. Each SFI block index is used to indicate a group of slot formats. For example, SFI_index0 indicates that the slot format with the combination id of 3 in Cell1 is 255. The specific format content can be obtained by querying Table 1. SFI_index1 indicates that the slot formats with the combination id of 0 in Cell2 are 7, 2, and 1. Multiple slot formats can be configured cyclically. The specific format content can be obtained by querying Table 1.

[0029] Table 1 Relationship table between slot format and symbol configuration in a slot

[0030]

[0031] Figure 2 A flowchart of a data transmission method provided for an embodiment. This method can be applied to a terminal, which can be understood as a user-side node, specifically referring to a user equipment (UE), such as a mobile terminal or a vehicle-mounted terminal, etc. As Figure 2 shown, the method provided in this embodiment includes step 110 and step 120.

[0032] In step 110, receive the frame structure configuration of each subband in the frequency domain.

[0033] In step 120, transmit data according to the frame structure configuration.

[0034] In the embodiment of the present application, transmission may include at least one of sending and receiving. For example, for a terminal, transmission may include uplink sending or may also include downlink receiving. For a network device, transmission may include downlink sending or may also include uplink receiving. The frame structure configuration may refer to the configuration of the symbol type for data transmission, such as an uplink symbol or a downlink symbol, etc., or may also refer to one or more frame parameters among the subcarrier spacing, cyclic prefix length, and waveform type. Based on the time domain, the frame structure configuration for each subband in the frequency domain is also considered, and the frame structure configurations of different subbands may be different. The frame structure configuration of each subband can be configured by a network node and sent to the terminal. In addition, the network node can configure the frame structure on the basis of configuring the subband. The frame structure configuration on this basis takes into account both the time and frequency dimensions and can be applied to a wider range of application scenarios including duplex.

[0035] In an embodiment, the frame structure configuration includes: transmitting data using at least one of the following types of symbols: uplink symbol (denoted as U), downlink symbol (denoted as D), flexible symbol (denoted as F), uplink and downlink hybrid symbol (denoted as M).

[0036] In this embodiment, the frame structure may include one or more types of symbols. Figure 3 A schematic diagram of a frame structure provided for an embodiment. As Figure 3 shown in the frame structure, four types of symbols can be used to transmit data. Among them, U, D, and F can refer to the definitions in NR. F refers to D or U (D / U), and M can be understood as Mix of DL and UL, or can also be denoted as D and U (D&U). The uplink and downlink hybrid symbol can be used for duplex communication, can transmit simultaneously on the network-side uplink and downlink, can be used for the uplink and downlink transmission of different UEs or may also be the uplink and downlink transmission of the same UE, thereby realizing flexible transmission of data between the uplink and downlink.

[0037] It should be noted that for frame structures that are not two-dimensional, such as frame structures that only consider the time domain, the above four types of symbols can also be defined.

[0038] In one embodiment, the frame structure configuration may include: transmitting data using at least one of the following types of symbols: uplink symbols (denoted as U), downlink symbols (denoted as D), flexible symbols (denoted as F), where the flexible symbols may be further configured to include at least one of the following: D / U, D&U. In addition, such a frame structure configuration is also applicable to non-two-dimensional frame structures.

[0039] In one embodiment, the frame structure configuration is indicated by at least one of semi-static signaling and dynamic signaling.

[0040] In this embodiment, the frame structure configuration can be indicated by a network node through semi-static signaling and / or dynamic signaling. The semi-static signaling is, for example, common (Common) signaling and / or UE-specific signaling, and the dynamic signaling is, for example, slot format indication (SFI) signaling.

[0041] For example, for Common signaling, D is the first N time slots in the frame period plus the first M symbols in the last D slot, and U is configured starting from the back with the number of time slots plus the number of symbols. In addition, D and U can overlap, and the overlapping time domain resources are defined as D&U, or the time slots and / or symbols in the frame period can be directly configured as the time slots and / or symbols of at least one of F and M through Common signaling.

[0042] For UE-specific signaling, the indication of F symbols and M symbols can be added. For example, "nrofFlexibleSymbolsINTEGER" is used to indicate F symbols, and "nrofDownlinkandUplinkSymbols INTEGER" is used to indicate M symbols. Table 2 is an example of a proprietary signaling configuration.

[0043] Table 2 A proprietary signaling configuration

[0044]

[0045] For SFI signaling, more rows can be introduced in the time slot format table of the normal cyclic prefix to represent different symbol configuration combinations, and the four symbols D, U, F, and M can be combined arbitrarily.

[0046] In one embodiment, when multiple symbol types are used to transmit data in a time slot, the frame structure configuration includes at least one of the following:

[0047] The uplink-downlink mixed symbol is located after the downlink symbol;

[0048] The uplink-downlink mixed symbol is located before the uplink symbol;

[0049] The uplink-downlink mixed symbol is located before the downlink symbol;

[0050] The uplink-downlink mixed symbol is located after the uplink symbol.

[0051] Table 3 shows some possible symbol configurations for time slots. As shown in Table 3, M represents the mixed symbol. When all four symbol types are present, the following restrictions may exist: D is before M; U is after M; U is before M and D is after M. It can also be understood that: M cannot be before both D and U at the same time, nor can it be after both D and U at the same time. Here, N refers to an integer value.

[0052] Table 3 Some possible symbol configurations for time slots

[0053]

[0054]

[0055]

[0056] It should be noted that regardless of the number of symbol types configured for data transmission, different frame structures can be configured for different subbands. Figure 4 Schematic diagram of another frame structure provided for an embodiment. As Figure 4 shown in the frame structure, subband 1 can use three types of symbols (D, F, and U) to transmit data; subbands 2 and 3 can use four types of symbols (D, F, M, and U) to transmit data. It can be seen that subband 3 uses a larger subcarrier spacing compared to subbands 1 and 2. For example, subbands 1 and 2 have a subcarrier spacing of 30 kHz, and subband 3 uses a subcarrier spacing of 60 kHz.

[0057] In an embodiment, the frame structure configuration includes at least one of the following frame parameters: subcarrier spacing, cyclic prefix length, waveform type.

[0058] In an embodiment, each subband includes one or more resource blocks; the multiple resource blocks are consecutive resource blocks or non-consecutive resource blocks.

[0059] In an embodiment, one subband corresponds to one Bandwidth Part (BWP), or one BWP includes multiple subbands. In this embodiment, the relationship between the BWP and the subbands can be a one-to-one correspondence or a one-to-many correspondence.

[0060] In one embodiment, when no frame structure is configured for any sub - band, the sub - band defaults to transmitting data using fully flexible symbols, that is, the default mode of the sub - band is the full - F frame structure.

[0061] In one embodiment, the period of the sub - band frame structure can be configured individually, or all the frequency - domain sub - bands can be set to a unified period. For example, if 3 sub - bands are configured, the period configured for sub - band 1 is 10 ms, with a 30 kHz sub - carrier spacing, corresponding to 20 time slots; the period configured for sub - band 2 is 20 ms, with a 60 kHz sub - carrier spacing, corresponding to 80 time slots; the period configured for sub - band 3 is 10 ms, with a 60 kHz sub - carrier spacing, corresponding to 40 time slots. In one embodiment, multiple periods can also be configured for each sub - band.

[0062] In one embodiment, receiving the frame structure configuration of each sub - band in the frequency domain includes at least one of the following:

[0063] Receiving the frame structure configuration of each sub - band among multiple sub - bands;

[0064] Receiving the frame structure configuration of one sub - band among multiple sub - bands, and receiving the differential information of the frame structure configuration of each of the remaining sub - bands relative to the frame structure configuration of the said sub - band except the said sub - band.

[0065] In this embodiment, if the network node configures the frame structures of multiple sub - bands, one way is to configure and indicate each sub - band independently, and another way is to configure one sub - band and further indicate whether there are changes in the remaining sub - bands relative to this sub - band. If there are changes, differential information can be further indicated to the terminal. Correspondingly, when receiving the frame structure configuration, the terminal can receive and determine the frame structure configuration of each sub - band independently, or first receive the configuration of one sub - band and receive the differential information of the remaining sub - bands relative to this sub - band to determine the changes of the remaining sub - bands relative to this sub - band.

[0066] In one embodiment, receiving the frame structure configuration of each sub - band in the frequency domain of the sub - band includes: receiving the frame structure configurations of multiple sub - bands according to the bundling relationship of at least one of the carrier and the sub - band.

[0067] In this embodiment, when the network node configures the frame structure for each sub - band under a carrier, to a certain extent, it will increase the signaling overhead. The bundling relationship (Bundle) of at least one of the carrier and the sub - band can be introduced and uniformly indicated or grouped for indication, so as to reduce the signaling overhead. For example, introducing a carrier group (CC Group) and / or a sub - band group, etc., that is, the frame structure can be configured and indicated uniformly for a carrier group and / or a sub - band group. When receiving the frame structure configuration, the terminal can receive and determine the frame structure configuration uniformly according to the carrier group and / or the sub - band group.

[0068] In one embodiment, the time-frequency two-dimensional frame structure can fallback to the time-domain frame structure. For example, only one sub-band is configured in the frequency domain.

[0069] In one embodiment, multiple sets of frame parameters can be configured on each sub-band. For example, two types of waveforms are configured, such as the Cyclic Prefix-Orthogonal Frequency Division Multiplexing waveform and the Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform. It can also be other waveforms newly introduced in 6G, such as the Orthogonal Time Frequency Space (OTFS) waveform, etc. This application does not limit this.

[0070] In one embodiment, for the sub-band configured with multiple sets of waveforms, the method further includes at least one of the following:

[0071] Receiving waveform switching within the sub-band semi-statically indicated by a Radio Resource Control (RRC) message;

[0072] Receiving dynamically indicated waveform switching within the sub-band.

[0073] In one embodiment, receiving dynamically indicated waveform switching within the sub-band includes at least one of the following:

[0074] Receiving Downlink Control Information (DCI), where each bit in the dynamic waveform switching indication field of the DCI respectively indicates whether waveform switching occurs in the corresponding sub-band;

[0075] Receiving a table configured by RRC, where each column in a row of the table respectively indicates the waveform of the corresponding sub-band.

[0076] In this embodiment, for the dynamically indicated waveform switching within the sub-band, the network node can, in the dynamic waveform switching indication field of the DCI, indicate to the terminal whether waveform switching occurs in each sub-band by 1 bit. For example, there are three sub-bands, and the higher-layer parameters configure 2 waveforms for each sub-band, which can be either uplink or downlink. The dynamic waveform switching indication field of the DCI has 3 bits, and each bit corresponds to a sub-band respectively, and respectively indicates the waveform switching situation of the three sub-bands. A bit value of 0 represents one waveform, and a value of 1 represents another waveform; if more than 2 waveforms are configured, such as n waveforms, then each sub-band is required to A number of bits indicates waveform switching. If the higher layer parameters configure 4 subbands and 2 of them support two waveforms, the dynamic waveform switching indication field of DCI can also have 2 bits, respectively corresponding to indicating the waveform switching situations of the 2 subbands of the two waveforms. In addition, the higher layer parameters can configure the enabling flag for a certain DCI format, such as {subband 1 enabled, subband 2 disabled, subband 3 enabled}. In this way, the dynamic waveform switching indication field in this DCI format can have 2 bits to respectively indicate subband 1 and subband 2, or there can be multiple DCI format enabling flags, such as {format 1 subband 1 enabled, format 1 subband 2 disabled, format 1 subband 3 enabled, format 2 subband 1 disabled, format 2 subband 2 disabled, format 2 subband 3 enabled}. In this way, for the dynamic waveform switching indication field in format 2 DCI, 1 bit can be used to indicate the waveform switching situation of subband 3.

[0077] Another way is that the network node indicates the waveform configuration within the subband to the terminal through the RRC configuration table. Among them, each column in a row of the table respectively indicates the waveforms of the corresponding subbands, and further dynamically indicates the waveform switching within each subband through DCI. As shown in Table 4, the RRC message configures that subband 1 includes two waveform configurations, waveform 1 and waveform 2, and subband 2 includes two waveform configurations, waveform 1 and waveform 3. Of course, more waveforms can also be configured. The dynamic waveform switching indication field indicating 1 means that subband 1 switches from the existing waveform among waveform 1 and waveform 2 to another waveform, and at the same time means that subband 2 switches from the existing waveform among waveform 1 and waveform 3 to another waveform. If more waveforms are configured for the subband, ceil(log n 2 ) bits are required to indicate waveform switching.

[0078] Table 4 Waveform configurations of different subbands

[0079] DCI Dynamic Waveform Switching Indication Field Subband 1 Subband 2 0 / 1 Waveform 1 / Waveform 2 Waveform 1 / Waveform 3

[0080] In an embodiment, the method further includes:

[0081] Receiving a first higher layer parameter, and enabling or disabling the reporting of power headroom information for each waveform of each subband according to the first higher layer parameter;

[0082] In the case of enabling, report the power headroom information PHR for each waveform of each subband.

[0083] In this embodiment, the terminal can report the power headroom information (Power Headroom Report, PHR) for each waveform of each subband separately. In addition, the network node can enable or disable the reporting function of the power headroom information for each waveform of each subband by sending the first higher layer parameter, or can fallback to reporting the power headroom information for each waveform separately, that is, different subbands do not need to be reported separately.

[0084] In one embodiment, the frame structure configuration of each subband in the frequency domain is received, including at least one of the following:

[0085] Receive the common configuration signaling for the uplink and downlink in the Time-division Duplex (TDD) mode. The common configuration signaling for the uplink and downlink in the TDD mode is used to configure the frame structure of each subband at the cell level;

[0086] Receive the dedicated configuration signaling for the uplink and downlink in the TDD mode. The dedicated configuration signaling for the uplink and downlink in the TDD mode is used to configure the frame structure of each subband at the terminal level;

[0087] Receive the Slot Format Indication (SFI) message. The SFI message is used to configure the frame structure of each subband.

[0088] In this embodiment, for the cell-level signaling, the network node can separately configure the common configuration signaling for the uplink and downlink in the TDD mode (tdd-UL-DL-ConfigurationCommon), including the period, etc. The terminal receives the corresponding signaling of each subband to determine the frame structure.

[0089] For the UE-specific signaling, the dedicated configuration signaling for the uplink and downlink in the TDD mode (tdd-UL-DL-ConfigDedicated) can be separately configured for each subband, or a set of time slots or a list of subbands can be configured. At least one of the following parameters is configured in each time slot or subband list configuration: slot index (slotIndex), subband index (subbandIndex). The terminal receives the corresponding signaling of each subband to determine the frame structure. Table 5 is an example of a proprietary signaling configuration.

[0090] Table 5 An example of a proprietary signaling configuration

[0091]

[0092] In one embodiment, a time slot and a subband transmit data using uplink symbols, downlink symbols, and flexible symbols, or using uplink symbols, downlink symbols, flexible symbols, and uplink-downlink hybrid symbols;

[0093] The method further includes:

[0094] Receive the second high-layer parameter and determine the subband index according to the second high-layer parameter.

[0095] In this embodiment, for a set of symbol configurations of a subband within a time slot, three types of symbols (D, F, U) or four types of symbols (a combination of D, F, M, U) can be used. A subband index can be introduced to indicate subband information, and the network node can configure the subband index through a second high-layer parameter and send it to the terminal.

[0096] In one embodiment, receiving the SFI message includes at least one of the following:

[0097] Determine the frame structure configuration according to the form of a linked list;

[0098] Determine that each combination identifier corresponds to multiple frequency-domain units according to the RRC message;

[0099] Determine that each combination identifier corresponds to a different subband according to the RRC message;

[0100] Determine each corresponding subband and each symbol according to a two-dimensional matrix;

[0101] Determine the corresponding different subbands respectively according to each SFI block under one carrier.

[0102] In this embodiment, for the SFI message, one way is to indicate the frame structure configuration in the form of a linked list. Table 6 shows the corresponding relationship between some combination identifiers and subbands. As shown in Table 6, each combination identifier (Combination ID) can simultaneously indicate the frame structure configuration of multiple frequency-domain units (such as subbands), and the network node can configure it through the RRC message and send it to the terminal. For example, the RRC message configures the relationship between the combination identifier and the subband. Each SFI block index in the DCI format 2-0 signaling is used to indicate a group of slot formats. For example, SFI_index0 indicates that the slot format of subband 1 with combination identifier (combination id) 1 in Cell1 is 255, and the time-domain formats of subband 2 are 4, 11, and 7. The specific slot format content can be obtained by querying the tables shown in Table 1 and / or Table 3. Additionally, it can also be like querying the slot format table newly defined in the 6G system through the slot format index (SF index) in Table 7.

[0103] Table 6 Corresponding relationship between some combination identifiers and subbands

[0104] Combined Identifier slot Formats for Subband1 slotFormats for Subband2 ...... 0 40 60 1 3 28 47 66 ...... 1 255 4 11 7 ......

[0105] Table 7 Corresponding relationship between some combination identifiers and subbands

[0106] Combined Identifier Slot Formats in for Subband1 Slot Formats for Subband2 ...... 0 SF index#0for 1st slot,… SF index#1for 1st slot,… ...... 1 SF index#2for 1st slot,… SF index#3for 1st slot,… ...... ... ...... ...... ......

[0107] For SFI messages, in one way, each combination identifier corresponds to a different sub-band, which can be configured through RRC messages and sent to the terminal. For example, Combination ID0 corresponds to the first sub-band, Combination ID1 corresponds to the second sub-band, and so on. Table 8 defines the correspondence between Combination ID and sub-bands in an RRC message.

[0108] Table 8 Correspondence between Combination ID and sub-bands

[0109] Combined Identifier Slot Formats 0 5 21 33 1 4 7 20 8 ......

[0110] For SFI messages, in one way, a two-dimensional matrix configuration is performed for each symbol in each sub-band; for the matrix frame structure configuration, a time-frequency two-dimensional bitmap can also be used. For example, the size of the time-domain bitmap is determined according to the number of slots included in the frame period, and the frequency domain is divided into the corresponding number of sub-bands. If the time-domain bitmap is configured as: 0001110000 and the frequency-domain bitmap is configured as: 010, it means that the second sub-band of slots 3, 4, and 5 is a full-duplex resource.

[0111] For SFI messages, in one way, multiple SFI blocks under one carrier respectively represent different sub-bands and correspond to different SFI_Indices. The network node can configure and define the correspondence between each SFI block and the sub-band through RRC parameters. Figure 5 A schematic diagram of another SFI signaling format provided for an embodiment is as Figure 5 shown. The DCI format 2-0 signaling includes N + 1 SFI block indices, SFI_index0 to SFI_indexN. Each SFI block index is used to indicate a group of slot formats. For example, SFI_index0 indicates that the slot format of combination ID 4 in sub-band 1 of cell 1 (Cell1) is 3. The specific format content can be obtained by querying Table 1 and / or Table 3. Of course, it can also be obtained by querying the slot format table newly defined in the 6G system. SFI_index1 indicates that the slot formats of combination ID 0 in sub-band 2 of cell 1 (Cell1) are 7, 2, and 1. The specific format content can be obtained by querying Table 1 and / or Table 3. Of course, it can also be obtained by querying the slot format table newly defined in the 6G system. In addition, multiple slot formats can be configured cyclically.

[0112] Figure 6Flowchart of another data transmission method provided for an embodiment. This method can be applied to a network node. The network device can be an access network device, a core network device, a server, etc. The access network device can be a base station in a terrestrial communication network, such as an evolved Node B (eNB) or a next-generation Node B (gNB) in an NR system. This application does not limit this. It should be noted that the technical details not described in detail in this embodiment can be referred to in any of the above embodiments. As Figure 6 shown, the method provided in this embodiment includes step 210 and step 220.

[0113] In step 210, configure and send the frame structure configuration for each subband in the frequency domain.

[0114] In step 220, transmit data according to the frame structure configuration.

[0115] In this embodiment, the frame structure configuration can refer to the configuration of the symbol type for data transmission, such as uplink symbols or downlink symbols, etc., or can refer to frame parameters such as subcarrier spacing, cyclic prefix length, and / or waveform type. On the basis of the time domain, the frame structure configuration for each subband in the frequency domain is also considered, and the frame structure configurations of different subbands can be different. The network node can configure the frame structure configuration of each subband, and, on the basis of configuring the subband, the frame structure can be further configured. On this basis, the frame structure configuration considers both time and frequency dimensions and can be applied to a wider range of application scenarios including duplexing.

[0116] In one embodiment, the frame structure configuration includes:

[0117] Transmit data using at least one of the following types of symbols:

[0118] Uplink symbols, downlink symbols, flexible symbols, uplink and downlink hybrid symbols.

[0119] In one embodiment, the frame structure configuration is indicated by at least one of semi-static signaling and dynamic signaling.

[0120] In one embodiment, when transmitting data using multiple symbol types in a time slot, the frame structure configuration includes at least one of the following:

[0121] The uplink and downlink hybrid symbols are located after the downlink symbols;

[0122] The uplink and downlink hybrid symbols are located before the uplink symbols;

[0123] The uplink and downlink hybrid symbols are located before the downlink symbols;

[0124] The uplink and downlink hybrid symbols are located after the uplink symbols.

[0125] In one embodiment, the frame structure configuration includes at least one of the following frame parameters: subcarrier spacing, cyclic prefix length, waveform type.

[0126] In one embodiment, when the frame structure is not configured for any of the subbands, the subband defaults to transmitting data using fully flexible symbols.

[0127] In one embodiment, the frame structure configuration of each subband in the transmission frequency domain includes at least one of the following:

[0128] Transmitting the frame structure configuration of each subband among multiple subbands;

[0129] Transmitting the frame structure configuration of one subband among multiple subbands, and transmitting differential information of the frame structure configuration of each of the remaining subbands except the subband relative to the frame structure configuration of the subband.

[0130] In one embodiment, the frame structure configuration of each subband in the transmission frequency domain includes:

[0131] Transmitting the frame structure configuration of multiple subbands according to the bundling relationship of at least one of the carrier and the subband.

[0132] In one embodiment, for a subband configured with multiple sets of waveforms, it further includes at least one of the following:

[0133] Semi-statically indicating waveform switching within the subband through a Radio Resource Control (RRC) message;

[0134] Dynamically indicating waveform switching within the subband.

[0135] In one embodiment, dynamically indicating waveform switching within the subband includes at least one of the following:

[0136] Respectively indicating whether waveform switching is performed for the corresponding subband by each bit in the dynamic waveform switching indication field of the Downlink Control Information (DCI);

[0137] Transmitting a table configured by the RRC, where each column in a row of the table respectively indicates the waveform of the corresponding subband.

[0138] In one embodiment, the method further includes:

[0139] Enabling or disabling the reporting of power headroom information for each waveform of each subband through a first high-layer parameter;

[0140] When enabled, receiving the power headroom information (PHR) reported for each waveform of each subband.

[0141] In one embodiment, the frame structure configuration of each subband in the transmission frequency domain includes at least one of the following:

[0142] Send the TDD mode uplink and downlink common configuration signaling, where the TDD mode uplink and downlink common configuration signaling configures the frame structure of each sub-band at the cell level;

[0143] Send the TDD mode uplink and downlink dedicated configuration signaling, where the TDD mode uplink and downlink dedicated configuration signaling configures the frame structure of each sub-band at the terminal level;

[0144] Send the Slot Format Indication (SFI) message, where the SFI message is used to configure the frame structure of each sub-band.

[0145] In one embodiment, a time slot and a sub-band transmit data using uplink symbols, downlink symbols, and flexible symbols, or using uplink symbols, downlink symbols, flexible symbols, and uplink-downlink hybrid symbols;

[0146] The method further includes:

[0147] Indicate the sub-band index through a second high-layer parameter.

[0148] In one embodiment, sending the SFI message includes at least one of the following:

[0149] Indicate the frame structure configuration in the form of a linked list;

[0150] Configure each combination identifier to correspond to multiple frequency domain units through an RRC message;

[0151] Configure each combination identifier to correspond to different sub-bands respectively through an RRC message;

[0152] Configure each sub-band and each symbol corresponding to a two-dimensional matrix;

[0153] Configure each SFI block under one carrier to correspond to different sub-bands respectively.

[0154] An embodiment of the present application further provides a data transmission device. Figure 7 The structural schematic diagram of a data transmission device provided for one embodiment. As Figure 7 shown, the data transmission device includes:

[0155] A configuration receiving module 310, configured to receive the frame structure configuration of each sub-band in the frequency domain.

[0156] A transmission module 320, configured to transmit data according to the frame structure configuration.

[0157] In one embodiment, the frame structure configuration includes: transmitting data using at least one of the following types of symbols: uplink symbols, downlink symbols, flexible symbols, uplink-downlink hybrid symbols.

[0158] In one embodiment, the frame structure configuration is indicated by at least one of semi-static signaling and dynamic signaling.

[0159] In one embodiment, when multiple symbol types are used to transmit data in a time slot, the frame structure configuration includes at least one of the following:

[0160] The uplink-downlink hybrid symbol is located after the downlink symbol;

[0161] The uplink-downlink hybrid symbol is located before the uplink symbol;

[0162] The uplink-downlink hybrid symbol is located before the downlink symbol;

[0163] The uplink-downlink hybrid symbol is located after the uplink symbol.

[0164] In one embodiment, the frame structure configuration includes at least one of the following frame parameters: subcarrier spacing, cyclic prefix length, waveform type.

[0165] In one embodiment, each subband includes one or more resource blocks; the multiple resource blocks are consecutive resource blocks or non-consecutive resource blocks.

[0166] In one embodiment, one subband corresponds to one partial bandwidth BWP, or one BWP includes multiple subbands.

[0167] In one embodiment, when the frame structure is not configured for any of the subbands, the subband defaults to using fully flexible symbols to transmit data.

[0168] In one embodiment, receiving the frame structure configuration of each subband in the frequency domain includes at least one of the following:

[0169] Receiving the frame structure configuration of each subband among multiple subbands;

[0170] Receiving the frame structure configuration of one subband among multiple subbands, and receiving the differential information of the frame structure configuration of each of the remaining subbands except the subband relative to the frame structure configuration of the subband.

[0171] In one embodiment, receiving the frame structure configuration of each subband in the frequency domain includes:

[0172] Receiving the frame structure configuration of multiple subbands according to the bundling relationship of at least one of the carrier and the subband.

[0173] In one embodiment, for a subband configured with multiple sets of waveforms, it further includes at least one of the following:

[0174] Receiving the waveform switching within the subband semi-statically indicated by a radio resource control (RRC) message;

[0175] Receive waveform switching within a dynamically indicated sub-band.

[0176] In one embodiment, receiving waveform switching within a dynamically indicated sub-band includes at least one of the following:

[0177] Receive downlink control information DCI, where each bit in the dynamic waveform switching indication field of the DCI indicates whether waveform switching is performed for the corresponding sub-band;

[0178] Receive a table configured by RRC, where each column in a row of the table indicates the waveform of the corresponding sub-band.

[0179] In one embodiment, the apparatus further includes:

[0180] An enabling module, configured to receive a first high-layer parameter and enable or disable the reporting of power headroom information for each waveform of each sub-band according to the first high-layer parameter;

[0181] A reporting module, configured to report power headroom information PHR for each waveform of each sub-band when enabled.

[0182] In one embodiment, receiving the frame structure configuration of each sub-band in the frequency domain includes at least one of the following:

[0183] Receive TDD mode uplink and downlink common configuration signaling, which is used to configure the frame structure of each sub-band at the cell level;

[0184] Receive TDD mode uplink and downlink dedicated configuration signaling, which is used to configure the frame structure of each sub-band at the terminal level;

[0185] Receive a slot format indication SFI message, which is used to configure the frame structure of each sub-band.

[0186] In one embodiment, a time slot and a sub-band transmit data using uplink symbols, downlink symbols, and flexible symbols, or using uplink symbols, downlink symbols, flexible symbols, and uplink-downlink hybrid symbols;

[0187] The apparatus further includes: an index determination module, configured to receive a second high-layer parameter and determine a sub-band index according to the second high-layer parameter.

[0188] In one embodiment, the receiving the SFI message includes at least one of the following:

[0189] Determine the frame structure configuration in the form of a linked list;

[0190] Determine that each combination identifier corresponds to multiple frequency domain units according to the RRC message;

[0191] Determine that each combination identifier corresponds to a different sub - band according to the RRC message;

[0192] Determine each corresponding sub - band and each symbol according to the two - dimensional matrix;

[0193] Determine the corresponding different sub - bands respectively according to each SFI block under one carrier.

[0194] The data transmission device proposed in this embodiment and the data transmission method proposed in the above - mentioned embodiment belong to the same inventive concept. Technical details not described in detail in this embodiment can be referred to any of the above - mentioned embodiments, and this embodiment has the same beneficial effects as the execution of the data transmission method.

[0195] The embodiment of the present application also provides a data transmission device. Figure 8 It is a schematic structural diagram of a data transmission device provided for an embodiment. As Figure 8 shown, the data transmission device includes:

[0196] A configured transmission module 410, configured to configure and transmit the frame structure configuration of each sub - band in the frequency domain.

[0197] A transmission module 420, which transmits data according to the frame structure configuration.

[0198] In one embodiment, the frame structure configuration includes: transmitting data using at least one of the following types of symbols: uplink symbol, downlink symbol, flexible symbol, uplink - downlink hybrid symbol.

[0199] In one embodiment, the frame structure configuration is indicated by at least one of semi - static signaling and dynamic signaling.

[0200] In one embodiment, when transmitting data using multiple symbol types in one time slot, the frame structure configuration includes at least one of the following:

[0201] The uplink - downlink hybrid symbol is located after the downlink symbol;

[0202] The uplink - downlink hybrid symbol is located before the uplink symbol;

[0203] The uplink - downlink hybrid symbol is located before the downlink symbol;

[0204] The uplink - downlink hybrid symbol is located after the uplink symbol.

[0205] In one embodiment, the frame structure configuration includes at least one of the following frame parameters: sub - carrier spacing, cyclic prefix length, waveform type.

[0206] In one embodiment, when no frame structure is configured for any of the subbands, the subband defaults to transmitting data using fully flexible symbols.

[0207] In one embodiment, configuring the frame structure for each subband in the transmission frequency domain includes at least one of the following:

[0208] Configuring the frame structure for each of multiple subbands;

[0209] Configuring the frame structure for one of multiple subbands, and transmitting differential information of the frame structure configuration of each of the remaining subbands other than the subband with respect to the frame structure configuration of the subband.

[0210] In one embodiment, configuring the frame structure for each subband in the transmission frequency domain includes:

[0211] Transmitting the frame structure configuration of multiple subbands according to the bundling relationship of at least one of the carrier and the subband.

[0212] In one embodiment, for a subband configured with multiple sets of waveforms, it further includes at least one of the following:

[0213] Semi-statically indicating waveform switching within the subband through a Radio Resource Control (RRC) message;

[0214] Dynamically indicating waveform switching within the subband.

[0215] In one embodiment, dynamically indicating waveform switching within the subband includes at least one of the following:

[0216] Indicating whether each corresponding subband performs waveform switching respectively through each bit in the dynamic waveform switching indication field of Downlink Control Information (DCI);

[0217] Transmitting a table configured by RRC, where each column in a row of the table indicates the waveform of the corresponding subband.

[0218] In one embodiment, the device further includes:

[0219] An enabling module, configured to enable or disable reporting of power headroom information for each waveform of each subband through a first high-layer parameter;

[0220] An information receiving module, configured to receive the reported power headroom information (PHR) for each waveform of each subband when enabled.

[0221] In one embodiment, configuring the frame structure for each subband in the transmission frequency domain includes at least one of the following:

[0222] Send the TDD mode uplink and downlink common configuration signaling, where the TDD mode uplink and downlink common configuration signaling configures the frame structure of each sub-band at the cell level;

[0223] Send the TDD mode uplink and downlink dedicated configuration signaling, where the TDD mode uplink and downlink dedicated configuration signaling configures the frame structure of each sub-band at the terminal level;

[0224] Send the Slot Format Indication (SFI) message, where the SFI message is used to configure the frame structure of each sub-band.

[0225] In one embodiment, a time slot and a sub-band transmit data using uplink symbols, downlink symbols, and flexible symbols, or transmit data using uplink symbols, downlink symbols, flexible symbols, and uplink-downlink hybrid symbols;

[0226] The device further includes: an index indication module configured to indicate the sub-band index through a second high-layer parameter.

[0227] In one embodiment, sending the SFI message includes at least one of the following:

[0228] Indicate the frame structure configuration in the form of a linked list;

[0229] Configure each combination identifier to correspond to multiple frequency domain units through an RRC message;

[0230] Configure each combination identifier to correspond to different sub-bands respectively through an RRC message;

[0231] Configure each sub-band and each symbol corresponding to a two-dimensional matrix;

[0232] Configure each SFI block under one carrier to correspond to different sub-bands respectively.

[0233] The data transmission device proposed in this embodiment and the data transmission method proposed in the above embodiment belong to the same inventive concept. Technical details not described in detail in this embodiment can be referred to in any of the above embodiments, and this embodiment has the same beneficial effects as the execution of the data transmission method.

[0234] The embodiment of the present application also provides a communication node, which can be a terminal or a network node. Figure 9 For the hardware structure schematic diagram of a communication node provided in one embodiment, as Figure 9 shown, the communication node provided by the present application includes a processor 510 and a memory 520; the processor 510 in this communication node can be one or more, Figure 9Take a processor 510 as an example; a memory 520 is configured to store one or more programs; the one or more programs are executed by the one or more processors 510, so that the one or more processors 510 implement the data transmission method described in the embodiments of the present application.

[0235] The communication node further includes: a communication device 530, an input device 540, and an output device 550.

[0236] The processor 510, memory 520, communication device 530, input device 540, and output device 550 in the communication node may be connected through a bus or other means. Figure 9 Take the connection through a bus as an example.

[0237] The input device 540 can be used to receive input digital or character information, and generate key signal inputs related to the user settings and function control of the communication node. The output device 550 may include display devices such as a display screen.

[0238] The communication device 530 may include a receiver and a transmitter. The communication device 530 is configured to perform information transceiver communication according to the control of the processor 510.

[0239] The memory 520, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the data transmission method described in the embodiments of the present application (for example, the configuration receiving module 310 and the transmission module 320 in the data transmission device). The memory 520 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the communication node, etc. In addition, the memory 520 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 520 may further include a memory remotely set relative to the processor 510, and these remote memories can be connected to the communication node through a network. Examples of the above networks include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0240] The embodiments of the present application further provide a storage medium, which stores a computer program, and when the computer program is executed by a processor, it implements any one of the data transmission methods described in the embodiments of the present application. The method includes: receiving the frame structure configuration of each subband in the frequency domain; transmitting data according to the frame structure configuration. Or, the method includes: configuring and sending the frame structure configuration of each subband in the frequency domain; transmitting data according to the frame structure configuration.

[0241] The embodiments of the present application also provide a computer program product, including computer programs / instructions, which when executed by a processor implement any of the data transmission methods in the embodiments of the present application. The method includes: receiving the frame structure configuration of each subband in the frequency domain; transmitting data according to the frame structure configuration. Alternatively, the method includes: configuring and sending the frame structure configuration of each subband in the frequency domain; transmitting data according to the frame structure configuration.

[0242] The computer storage medium of the embodiments of the present application can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the above. The computer-readable storage medium can be any tangible medium that contains or stores a program, which can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0243] The computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal can take various forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0244] The program code contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the above.

[0245] Computer program code for performing the operations of this application can be written in one or more programming languages or combinations thereof. The programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computer (e.g., by using an Internet service provider to connect through the Internet).

[0246] The embodiments of this application also provide a computer program product, including a computer program / instructions, which when executed by a processor implement the data transmission method as described in any of the above embodiments.

[0247] As described above, it is only an exemplary embodiment of this application and is not used to limit the protection scope of this application.

[0248] Those skilled in the art should understand that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable network browser, or a vehicle-mounted mobile station.

[0249] Generally speaking, various embodiments of this application can be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, a microprocessor, or other computing devices, although this application is not limited thereto.

[0250] The embodiments of this application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0251] Any block diagram of a logical process in the accompanying drawings of the present application may represent a program step, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. A computer program may be stored in a memory. The memory may have any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to Read-Only Memory (ROM), Random Access Memory (RAM), optical memory devices and systems (such as Digital Video Disc (DVD) or Compact Disk (CD), etc.). The computer-readable medium may include a non-transitory storage medium. The data processor may be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a Digital Signal Processing (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FGPA), and a processor based on a multi-core processor architecture.

[0252] By way of illustrative and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adaptations of the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and the claims, without departing from the scope of the present application. Accordingly, the proper scope of the present application will be determined in accordance with the claims.

Claims

1. A data transmission method, applied to a terminal, characterized in that: include: Receive a frame structure configuration for each subband in the frequency domain; Transmit data according to the frame structure configuration.

2. The method according to claim 1, characterized in that The frame structure configuration includes: Data is transmitted using at least one of the following types of symbols: Uplink symbols, downlink symbols, flexible symbols, uplink and downlink mixed symbols.

3. The method according to claim 2, characterized in that The frame structure configuration is indicated by at least one of semi-static signaling and dynamic signaling.

4. The method according to claim 2, characterized in that: When multiple symbol types are used to transmit data in a time slot, the frame structure configuration includes at least one of the following: The uplink and downlink mixed symbol is located after the downlink symbol; The uplink and downlink mixed symbol is located before the uplink symbol; The uplink and downlink mixed symbol is located before the downlink symbol; The uplink and downlink mixed symbols are located after the uplink symbols.

5. The method according to claim 1, characterized in that The frame structure configuration includes at least one of the following frame parameters: subcarrier spacing, cyclic prefix length, and waveform type.

6. The method according to claim 1, characterized in that Each of the subbands includes one or more resource blocks; The multiple resource blocks are consecutive resource blocks or non-consecutive resource blocks.

7. The method according to claim 1, characterized in that One subband corresponds to one partial bandwidth BWP, or one BWP includes multiple subbands.

8. The method according to claim 1, characterized in that In the case that any of the sub-bands is not configured with a frame structure, the sub-band adopts full flexible symbols to transmit data by default.

9. The method according to claim 1, characterized in that: The frame structure configuration of each subband in the receiving frequency domain includes at least one of the following: receiving a frame structure configuration for each subband of a plurality of subbands; A frame structure configuration of a subband among a plurality of subbands is received, and differential information of the frame structure configuration of each of the remaining subbands except the subband relative to the frame structure configuration of the subband is received.

10. The method according to claim 1, characterized in that The frame structure configuration of each subband in the receiving frequency domain includes: A frame structure configuration of a plurality of subbands is received according to a bundling relationship of at least one of a carrier and a subband.

11. The method according to claim 1, characterized in that: For a subband configured with multiple sets of waveforms, at least one of the following is also included: receiving a waveform switch within a subband semi-statically indicated by a radio resource control (RRC) message; Receive waveform switching within a sub-band indicated by dynamics.

12. The method according to claim 10, characterized in that Receiving waveform switching within a subband indicated by dynamics, including at least one of the following: receiving downlink control information DCI, wherein each bit in a dynamic waveform switching indication field of the DCI indicates whether a corresponding subband performs waveform switching; A table configured by RRC is received, wherein each column in a row of the table indicates a waveform of a corresponding subband.

13. The method according to claim 1, characterized in that Also includes: receiving a first high-level parameter, and enabling or disabling reporting of power headroom information for each waveform of each subband according to the first high-level parameter; When enabled, power headroom information PHR is reported for each waveform of each subband.

14. The method according to claim 1, characterized in that The frame structure configuration of each subband in the receiving frequency domain includes at least one of the following: receiving TDD mode uplink and downlink common configuration signaling, wherein the TDD mode uplink and downlink common configuration signaling is used to configure a frame structure of each subband at a cell level; receiving TDD mode uplink and downlink dedicated configuration signaling, wherein the TDD mode uplink and downlink dedicated configuration signaling is used to configure the frame structure of each subband at the terminal level; A slot format indication SFI message is received, where the SFI message is used to configure a frame structure of each subband.

15. The method according to claim 1, characterized in that One time slot and one subband use uplink symbols, downlink symbols and flexible symbols to transmit data, or use uplink symbols, downlink symbols, flexible symbols and uplink and downlink mixed symbols to transmit data; The method further comprises: A second high-level parameter is received, and a subband index is determined according to the second high-level parameter.

16. The method according to claim 14, characterized in that The receiving of the SFI message includes at least one of the following: Determine the frame structure configuration according to the form of a linked list; Determine, according to the RRC message, that each combination identifier corresponds to a plurality of frequency domain units; Determine, according to the RRC message, that each combination identifier corresponds to a different subband; Determine each corresponding subband and each symbol according to the two-dimensional matrix; The corresponding different subbands are determined according to each SFI block under one carrier.

17. A data transmission method, applied to a network node, characterized in that: include: Configure and send a frame structure configuration of each subband in the frequency domain; Transmit data according to the frame structure configuration.

18. The method according to claim 17, characterized in that The frame structure configuration includes: Data is transmitted using at least one of the following types of symbols: Uplink symbols, downlink symbols, flexible symbols, uplink and downlink mixed symbols.

19. The method according to claim 18, characterized in that The frame structure configuration is indicated by at least one of semi-static signaling and dynamic signaling.

20. The method according to claim 18, characterized in that When multiple symbol types are used to transmit data in a time slot, the frame structure configuration includes at least one of the following: The uplink and downlink mixed symbol is located after the downlink symbol; The uplink and downlink mixed symbol is located before the uplink symbol; The uplink and downlink mixed symbol is located before the downlink symbol; The uplink and downlink mixed symbols are located after the uplink symbols.

21. The method according to claim 17, characterized in that The frame structure configuration includes at least one of the following frame parameters: subcarrier spacing, cyclic prefix length, and waveform type.

22. The method according to claim 17, characterized in that In the case that no frame structure is configured for any of the sub-bands, the sub-band adopts full flexible symbols to transmit data by default.

23. The method according to claim 17, characterized in that The frame structure configuration of each subband in the transmission frequency domain includes at least one of the following: sending a frame structure configuration for each subband in the plurality of subbands; The frame structure configuration of a subband among the plurality of subbands is transmitted, and differential information of the frame structure configuration of each of the remaining subbands except the subband relative to the frame structure configuration of the subband is transmitted.

24. The method according to claim 17, characterized in that The frame structure configuration of each subband in the transmission frequency domain includes: The frame structure configuration of the plurality of sub-bands is transmitted according to a bundling relationship of at least one of the carrier and the sub-band.

25. The method according to claim 17, characterized in that For a subband configured with multiple sets of waveforms, at least one of the following is also included: Semi-statically indicating waveform switching within a subband through a radio resource control RRC message; Dynamically indicates waveform switching within a subband.

26. The method according to claim 25, characterized in that Dynamically indicating waveform switching within a subband, including at least one of the following: Each bit in the dynamic waveform switching indication field of the downlink control information DCI indicates whether the corresponding subband performs waveform switching; A table of RRC configuration is sent, wherein each column in a row of the table indicates a waveform of a corresponding subband.

27. The method according to claim 17, characterized in that Also includes: Enable or disable reporting of power headroom information for each waveform of each subband through a first higher layer parameter; When enabled, the power headroom information PHR reported for each waveform of each sub-band is received.

28. The method according to claim 17, characterized in that The frame structure configuration of each subband in the transmission frequency domain includes at least one of the following: Sending TDD mode uplink and downlink common configuration signaling, wherein the TDD mode uplink and downlink common configuration signaling configures the frame structure of each subband at the cell level; Sending TDD mode uplink and downlink dedicated configuration signaling, wherein the TDD mode uplink and downlink dedicated configuration signaling configures the frame structure of each subband at the terminal level; A slot format indication SFI message is sent, where the SFI message is used to configure the frame structure of each subband.

29. The method according to claim 17, characterized in that One time slot and one subband use uplink symbols, downlink symbols and flexible symbols to transmit data, or use uplink symbols, downlink symbols, flexible symbols and uplink and downlink mixed symbols to transmit data; The method further comprises: The subband index is indicated by a second higher layer parameter.

30. The method according to claim 28, characterized in that Send an SFI message, including at least one of the following: Indicate the frame structure configuration in the form of a linked list; Each combination identifier is configured to correspond to multiple frequency domain units through an RRC message; Each combination identifier is configured to correspond to a different subband through an RRC message; Configure each subband and each symbol corresponding to the two-dimensional matrix; Each SFI block under one carrier is configured to correspond to a different subband.

31. A communication node, characterized in that: include: memory, and one or more processors; The memory is configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the data transmission method according to any one of claims 1 to 30.

32. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the data transmission method according to any one of claims 1 to 30 is implemented.

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