Data transmission method, communication node, and storage medium

Abstract

Provided in the present application are a data transmission method, a communication node, and a storage medium. The method comprises: determining resource configuration information (110); and on the basis of the resource configuration information, sending and / or receiving data (120), wherein the resource configuration information comprises at least one of the following: first-type resource configuration information, a scheduled frequency band resource, and waveform switching configuration information.

Description

Data transmission method, communication node and storage medium TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, for example, to a data transmission method, a communication node and a storage medium. BACKGROUND

[0002] The peak-to-average power ratio (PAPR) is an indicator that measures the ratio of the peak power to the average power of a signal waveform in transmission. Future communication networks (e.g., 6G) require waveform design to effectively reduce PAPR to reduce the dynamic range of signals in the transmission process and improve the energy efficiency of the system. By reducing PAPR, spectrum resources can be more effectively utilized, and spectrum utilization can be improved to meet the demand for high data rates and large capacity in future communication networks. And future networks may face a wider range of application scenarios, so waveform design needs to consider supporting multiple different business needs to reduce PAPR.

[0003] The tone reservation (TR) technique reserves some subcarriers that do not participate in data symbol transmission and carries some signals that can reduce the peak-to-average power ratio, so as to adjust the peak value of the signal, i.e., to reduce the peak. Due to the orthogonality between subcarriers, these reserved subcarriers will not affect the transmission of data. The principle of suppressing PAPR is to reserve a small number of subcarriers as first-class resources, such as peak reduction tones (PRTs), at the transmitter to reduce the PAPR of the waveform (i.e., use the reserved subcarriers to carry signals that reduce the peak-to-average power ratio, and by reasonably selecting the values on the reserved subcarriers, the peak-to-average power ratio of the time-domain combined signal is minimized). At the receiver, these first-class resources can be easily removed. The effect of using reserved subcarriers to reduce the peak-to-average power ratio depends on the specific configuration of the reserved subcarriers.

[0004] In addition, NR uplink supports two waveforms, DFT-s-OFDM and CP-OFDM, and different waveforms may need to be used when the UE is in different areas (e.g., cell center and cell edge).

[0005] In the complex scenario of introducing reserved subcarriers or waveform switching, how to effectively reduce PAPR becomes a problem to be solved. SUMMARY

[0006] The present application provides a data transmission method, a communication node and a storage medium.

[0007] The present application provides a data transmission method, a communication node and a storage medium.

[0008] Determine resource configuration information;

[0009] transmit and / or receive data according to the resource configuration information;

[0010] The resource configuration information comprises at least one of the following: first-type resource configuration information, scheduled frequency band resource, and waveform switching configuration information.

[0011] The embodiments of the present application further provide a data transmission method, comprising:

[0012] transmitting resource configuration information;

[0013] receiving and / or transmitting data according to the resource configuration information;

[0014] The resource configuration information comprises at least one of the following: first-type resource configuration information, scheduled frequency band resource, and waveform switching configuration information.

[0015] The embodiments of the present application further provide a communication node, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the data transmission method described above.

[0016] The embodiments of the present application further provide a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the program is executable on a processor to implement the data transmission method described above. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a flow chart of a data transmission method according to an embodiment;

[0018] Fig. 2 is a flow chart of another data transmission method according to an embodiment;

[0019] Fig. 3 is a schematic diagram of a first-type resource located in an in-band position of a second-type resource according to an embodiment;

[0020] Fig. 4 is a schematic diagram of a first-type resource located in an in-band and / or side-band position of a second-type resource according to an embodiment;

[0021] Fig. 5 is a schematic diagram of a first-type resource located in a single-side position of a second-type resource according to an embodiment;

[0022] Fig. 6 is a schematic diagram of a first-type resource located in a double-side position of a second-type resource according to an embodiment;

[0023] Fig. 7 is a schematic diagram of a first-type resource located in a double-side position of a second-type resource according to an embodiment;

[0024] Fig. 8 is a structural schematic diagram of a data transmission apparatus according to an embodiment;

[0025] FIG. 9 is a structural schematic diagram of another data transmission device according to an embodiment;

[0026] FIG. 10 is a hardware structural schematic diagram of a first communication node according to an embodiment;

[0027] FIG. 11 is a hardware structural schematic diagram of a second communication node according to an embodiment. DETAILED DESCRIPTION

[0028] FIG. 1 is a flowchart of a data transmission method according to an embodiment. The method can be applied to a first communication node, which can be a user-side node such as a user equipment (UE) and can serve as a data sending end or a receiving end. As shown in FIG. 1, the method according to the embodiment includes steps 110 and 120.

[0029] In step 110, resource configuration information is determined.

[0030] In step 120, data is sent and / or received according to the resource configuration information.

[0031] The resource configuration information includes at least one of the following: first-type resource configuration information, scheduled frequency band resource, and waveform switching configuration information.

[0032] In the embodiment, the resource configuration information can be determined according to indication signaling sent by a second communication node or obtained according to predefined information. The resource configuration information includes configuration information about first-type resources, waveform switching, and scheduled frequency bands. The first-type resources can be used to carry first-type signals, which can be reduced peak-to-average power ratio signals, reference signals (e.g., reference signals for sensing), or power adjustment signals. Correspondingly, resource units corresponding to the first-type resources can serve as peak reduction carriers, reference signal carriers, or power adjustment carriers to carry first-type signals with corresponding functions.

[0033] In an embodiment, the first-type resource configuration information includes at least one of the following:

[0034] first-type resource location, first-type resource reference point, first-type resource pattern, first-type resource proportion, first-type resource function, first-type resource enabling condition, and first-type resource conflict resolution.

[0035] In an embodiment, the first-type resource configuration information includes a first-type resource reference point.

[0036] The first-type resource reference point includes at least one of the following:

[0037] a smallest number of resource units of the scheduled frequency band resource;

[0038] a maximum number of resource units of the scheduled frequency band resource;

[0039] in relation to a common reference point of a synchronization signal position and / or a resource block grid.

[0040] In an embodiment, the reference point can be a fixed offset relative to the synchronization signal position. The offset comprises at least one of: a specific symbol position in time domain relative to the synchronization signal, a fixed frequency offset in frequency domain relative to the synchronization signal.

[0041] In an embodiment, the first type of resource configuration information comprises a first type of resource position;

[0042] The first type of resource position comprises at least one of the following types of first type of resource position:

[0043] The first type of resource is located in an in-band position of the second type of resource, the first type of resource is located in an out-band position of the second type of resource, the first type of resource is located in an in-band and / or out-band position of the second type of resource;

[0044] The second type of resource comprises a scheduled frequency band resource.

[0045] In an embodiment, the out-band resource comprises at least one of: a single out-band resource, a double out-band resource.

[0046] The double out-band resource satisfies at least one of the following characteristics: the double out-band resources are equal; the double out-band resources are not equal.

[0047] In an embodiment, the resource configuration information comprises a first type of resource position; and the determining the resource configuration information comprises:

[0048] receiving first indication signaling; and determining the first type of resource position according to the first indication signaling;

[0049] The first indication signaling comprises at least one of the following: higher layer signaling; DCI signaling, and a first condition.

[0050] In an embodiment, the first condition comprises a used waveform type.

[0051] In the embodiment, the first indication signaling can be understood as indication signaling of the first type of resource position, such as PRT position type indication signaling. For the first condition, the positions of the first type of resource corresponding to different waveform types can be different. For example, if the used waveform is a DFT-s-OFDM waveform, the first type of resource can be located in an out-band position of the second type of resource; if it is a CP-OFDM waveform, the first type of resource can be located in an in-band position of the second type of resource.

[0052] In an embodiment, the first-type resource configuration information comprises at least one first-type resource pattern, each first-type resource pattern comprising at least one first-type resource set; each first-type resource set comprising one resource unit index or resource unit indexes at different positions;

[0053] In a case where the first-type resource pattern comprises only one first-type resource set, the first-type resource pattern is the first-type resource set.

[0054] In an embodiment, the first-type resource configuration information comprises a first-type resource pattern.

[0055] The first-type resource pattern is associated with at least one of the following: scheduled frequency band resource, modulation and coding scheme, modulation order, second indication signaling, third indication signaling; wherein the first-type resource pattern is determined according to at least one of the following:

[0056] Different sizes of scheduled frequency band resources correspond to different length ratios of first-type resource patterns;

[0057] The same size of scheduled frequency band resource corresponds to at least two length ratios of first-type resource patterns;

[0058] At least two different sizes of scheduled frequency band resources correspond to the same length ratio of first-type resource patterns;

[0059] The modulation and coding scheme and / or modulation order less than the first threshold value correspond to one length ratio of first-type resource patterns;

[0060] The modulation and coding scheme and / or modulation order less than the second threshold value correspond to another length ratio of first-type resource patterns;

[0061] The length ratio is the ratio of the number of resource units in the first-type resource set in the first-type resource pattern to the number of resource units in the scheduled frequency band.

[0062] In an embodiment, determining the first-type resource set comprises:

[0063] receiving second indication signaling, the second indication signaling being used to indicate the first-type resource set or the index of the first-type resource set; determining the first-type resource set used for the current transmission according to the second indication signaling;

[0064] determining the resource unit index used for the current transmission according to the determined first-type resource set;

[0065] The second indication signaling comprises at least one of the following: high-layer signaling; downlink control information (DCI) signaling.

[0066] In an embodiment, the first-type resource set comprises at least one of the following features:

[0067] Equal or unequal length between first-type resource sets belonging to different first-type resource patterns;

[0068] Equal length between first-type resource sets belonging to the same first-type resource pattern;

[0069] Periodic or non-periodic resource element index in the first-type resource set;

[0070] Periodic resource element index in the first-type resource set comprises at least one of the following:

[0071] At least two elements, the first element is the starting first-type resource element index, and the second element is the interval of the first-type resource element index;

[0072] At least three elements, the first element is the starting first-type resource element index, and the interval between two elements is equal.

[0073] In an embodiment, the first-type resource position can be in the second-type resource band, or in the second-type resource band and / or sideband.

[0074] In an embodiment, the first-type resource occupies at least one of the following resources: sideband resource of the second-type resource; extended sideband resource outside the second-type resource. Wherein, the second-type resource comprises: scheduled frequency band resource.

[0075] In an embodiment, the method further comprises:

[0076] According to the determined resource element index, at least one of the following rules is performed for mapping and / or demapping of the first-type signal:

[0077] Taking the smallest number resource element of the scheduled resource (for example, 0 carrier) as the initial resource element, and performing in the order of frequency domain and then time domain according to the determined resource element index;

[0078] Taking the reference point as the initial resource element, and performing in the order of frequency domain and then time domain according to the determined resource element index;

[0079] In the case that any of the resource element indexes in any of the first-type resource sets is negative-A, the A-th resource element before the smallest number resource element of the scheduled frequency band resource is performed for mapping and / or demapping;

[0080] In a case that any resource unit index C in any of the first type resource set is greater than the maximum number of resource units of the scheduled frequency band resource, mapping and / or demapping is performed on the Cth resource unit located outside the scheduled frequency band resource.

[0081] The first type resource set on different time domain symbols contains consistent resource unit indexes.

[0082] The rules performed on different time domain symbols are consistent.

[0083] In an embodiment, the first type resource configuration information includes at least one first type resource proportion; the first type resource proportion is associated with at least one of the following: scheduled frequency band, modulation and coding scheme, modulation order, third indication signaling; wherein the first type resource proportion is determined according to at least one of the following:

[0084] Different sizes of scheduled frequency band resources correspond to different first type resource proportions, and each scheduled frequency band corresponds to one first type resource proportion.

[0085] The same size of scheduled frequency band resource corresponds to at least two first type resource proportions, and each scheduled frequency band corresponds to at least two different first type resource proportions.

[0086] At least two different sizes of scheduled frequency band resources correspond to the same first type resource proportion.

[0087] The modulation and coding scheme and / or the first modulation order less than the first threshold value correspond to the first first type resource proportion.

[0088] The modulation and coding scheme and / or the second modulation order less than the second threshold value correspond to the second first type resource proportion.

[0089] The first type resource proportion is the proportion of the number of resource units occupied by the first type resource to the number of all resource units included in the scheduled frequency band resource.

[0090] In an embodiment, the first type resource proportion is determined by:

[0091] In a case that each scheduled frequency band corresponds to at least two first type resource proportions, the first type resource proportion is determined according to the third indication signaling.

[0092] In an embodiment, the resource configuration information includes the first type resource proportion.

[0093] The determination of the resource configuration information includes:

[0094] At least one third indication signaling is received.

[0095] At least one first type resource proportion or the index of the first type resource proportion is determined according to the third indication signaling.

[0096] The third indication signaling includes at least one of the following: high layer signaling; and DCI signaling.

[0097] In an embodiment, the number of resource units occupied by the first type of resources is a determined first type of resource proportion multiplied by the total number of resource units of the scheduled frequency band resources.

[0098] In an embodiment, the resource configuration information includes at least one first type of resource proportion, and the first type of resource proportion is associated with a first type of resource pattern.

[0099] The first type of resource pattern is associated with one or more first type of resource sets.

[0100] The first type of resource proportion includes at least two first type of resource proportions, and the two first type of resource proportions are respectively a first type of resource proportion at a minimum number of resource units end of the scheduled frequency band resources and a first type of resource proportion at a maximum number of resource units end of the scheduled frequency band resources.

[0101] In an embodiment, the method further includes: performing mapping and / or demapping of the first type of signal according to the number of resource units corresponding to the determined first type of resource proportion, and according to at least one of the following rules:

[0102] starting from the minimum number of resource units (for example, 0th carrier) of the scheduled resources as the starting resource unit of the determined resource unit, and then performing sequentially in the frequency domain and then in the time domain;

[0103] starting from the minimum number of resource units of the scheduled resources as the ending resource unit of the determined resource unit, and then performing sequentially in the frequency domain and then in the time domain;

[0104] starting from the maximum number of resource units of the scheduled resources as the starting resource unit of the determined resource unit, and then performing sequentially in the frequency domain and then in the time domain;

[0105] starting from the maximum number of resource units of the scheduled resources as the ending resource unit of the determined resource unit, and then performing sequentially in the frequency domain and then in the time domain;

[0106] starting from the first resource reference point as the starting resource unit of the determined resource unit, and then performing sequentially in the frequency domain and then in the time domain.

[0107] In an embodiment, the first type of resource configuration information includes a first type of resource function of the first type of signal carried by the first type of resources.

[0108] The determining resource configuration information includes: receiving fourth indication signaling; determining a first type of resource function according to the fourth indication signaling; and the first type of signal includes at least one of the following: all-zero signal; data signal; peak-to-average power ratio reduction signal; reference signal; sensing signal; power adjustment signal.

[0109] The fourth indication signaling includes at least one of the following: high layer signaling; and DCI signaling.

[0110] In an embodiment, the fourth indication signaling includes a function indication bit of a first type of signal carried by the first type of resource, and the function of the first type of resource includes at least one of the following:

[0111] In a case where the function indication bit is a first indication, the first type of resource is used to carry an all-zero signal;

[0112] In a case where the function indication bit is a second indication, the first type of resource is used to carry a data signal;

[0113] In a case where the function indication bit is a third indication, the first type of resource is used to carry a sensing signal;

[0114] In a case where the function indication bit is a fourth indication, the first type of resource is used to carry a reference signal;

[0115] In a case where the function indication bit is a fifth indication, the first type of resource is used to carry a power adjustment signal;

[0116] In a case where the function indication bit is a sixth indication or is not present, the first type of resource is used to carry a peak-to-average power reduction signal.

[0117] In an embodiment, the fourth indication signaling includes first signaling and second signaling, the first signaling is used to indicate whether to enable or disable a first type of resource function, and the second signaling is used to indicate a function of a first type of signal carried by the first type of resource;

[0118] The fourth indication signaling satisfies at least one of the following:

[0119] In a case where the first type of resource function is enabled and the first type of resource function indication bit is a first indication, the first type of resource is used to carry a data signal;

[0120] In a case where the first type of resource function is enabled and the first type of resource function indication bit is a second indication, the first type of resource is used to carry a sensing signal;

[0121] In a case where the first type of resource function is disabled, the first type of resource is used to carry a peak-to-average power reduction signal.

[0122] In an embodiment, the first type of resource configuration information includes a first type of resource enabling condition; and the method further includes: determining whether to enable the first type of resource configuration according to at least one of the following conditions:

[0123] The high layer signaling indicates whether the first type of resource related configuration is enabled;

[0124] whether the first-type resource related configuration is enabled or not is indicated by the DCI signaling;

[0125] whether a Modulation and Coding Scheme (MCS) is higher than a set threshold;

[0126] whether a modulation order is higher than a set order;

[0127] whether an allocated frequency band exceeds a set threshold;

[0128] a coverage performance, such as a measured energy or Signal to Interference plus Noise Ratio (SINR).

[0129] wherein the coverage performance comprises at least one of:

[0130] whether an uplink reference signal energy and / or SINR measured by the network node is lower than a corresponding threshold,

[0131] whether a downlink reference signal energy and / or SINR measured by the terminal node is lower than a corresponding threshold,

[0132] a request indication of the terminal node.

[0133] In an embodiment, the first-type resource configuration information comprises a first-type resource conflict resolution.

[0134] the first-type resource conflict resolution comprises at least one of the following rules:

[0135] in a case where the configured first-type resource is used to carry a first-type signal of non-data signal, complex modulation symbols are sequentially mapped and / or demapped on the scheduled resource according to a rule of frequency domain first and time domain second, and a resource element corresponding to the first-type resource is skipped;

[0136] in a case where the configured first-type resource is used to carry a first-type signal of non-data signal, when calculating resource elements of the scheduled resource available for a data bit sequence, a number of resource elements available for the bit sequence is a number of resource elements of the first-type resource excluding a number of resource elements corresponding to the first-type resource;

[0137] in a case where the configured first-type resource is used to carry a first-type signal of non-data signal, when calculating resource elements of the scheduled resource available for a data bit sequence, resource elements available for the bit sequence need to exclude resource elements corresponding to the first-type resource;

[0138] In a case that the first type of resource is configured to carry the first type of signal, the demodulation reference signal is sequentially mapped and / or de-mapped on the scheduled resource according to a rule of frequency domain first and time domain second, and the first type of resource does not overlap with the resource for carrying the demodulation reference signal.

[0139] In an embodiment, the resource configuration information is determined, including:

[0140] A fifth indication signaling is received, and whether waveform switching is performed is determined according to the fifth indication signaling.

[0141] The fifth indication signaling includes at least one of the following: downlink control information (DCI) of scheduled downlink, DCI of non-scheduled downlink, and high-layer signaling.

[0142] In an embodiment, in a case that the fifth indication signaling is DCI of scheduled downlink, the waveform switching indication information includes at least one of the following:

[0143] Indicated by a newly added bit field in the downlink control information;

[0144] Indicated by an existing bit field in the downlink control information;

[0145] Indicated by an existing field in the downlink control information;

[0146] According to conditional indication of scheduling information, the scheduling information includes at least one of the following: number of RBs, MCS index, DMRS CDM, number of layers, and channel type.

[0147] In an embodiment, in a case that the channel type is PUCCH, the conditions of the scheduling information include at least one of the following:

[0148] Configured PUCCH format, whether PUCCH repetition is configured, whether configured PUCCH repetition reaches a threshold value;

[0149] In a case that the channel type is PDSCH or PUSCH, the conditions of the scheduling information include at least one of the following: resource configuration type, whether PDSCH repetition is configured, whether configured PDSCH repetition reaches a threshold value, and scrambling Radio Network Temporary Identity (RNTI) type;

[0150] In a case that the channel type is PDCCH, the conditions of the scheduling information include at least one of the following: whether PDCCH repetition is configured, whether configured PDCCH repetition reaches a threshold value, and scrambling RNTI type.

[0151] In an embodiment, in a case that the fifth indication signaling is a DCI of non-scheduled downlink, the waveform switching indication information comprises at least one of the following:

[0152] indicated by a newly added bit field in the downlink control information;

[0153] indicated by an existing bit field in the downlink control information.

[0154] In an embodiment, the method further comprises:

[0155] determining whether the fifth indication signaling enables according to at least one of the following:

[0156] at least one high layer signaling, each high layer signaling being used to indicate whether a bit field of at least one waveform switching is enabled;

[0157] waveform switching enabling in DCI signaling;

[0158] whether a modulation and coding strategy is lower than a set threshold;

[0159] whether a modulation order is lower than a set order;

[0160] coverage performance;

[0161] wherein the coverage performance comprises at least one of the following:

[0162] whether an energy and / or SINR of an uplink reference signal measured by a network node is lower than a corresponding threshold,

[0163] whether an energy and / or SINR of a downlink reference signal measured by a terminal node is lower than a corresponding threshold,

[0164] a request indication of the terminal node.

[0165] In an embodiment, in a case that the resource configuration information comprises waveform switching configuration information, the resource configuration information further comprises DMRS sequence initialization indication; the DMRS sequence initialization indication satisfies at least one of the following:

[0166] in a case that transmission precoding is enabled, the DMRS sequence initialization indication occupies 0 bits; in a case that transmission precoding is disabled, the DMRS sequence initialization indication occupies 1 bit;

[0167] in a case that no high layer parameter is configured, the DMRS sequence initialization indication occupies 0 bits;

[0168] in a case that a high layer parameter is configured, the DMRS sequence initialization indication occupies 1 bit.

[0169] FIG. 2 is a flow chart of a data transmission method according to an embodiment, which can be applied to a second communication node, which can be a network side node such as a base station or an access point, and can be a data sending end or a receiving end. As shown in FIG. 2, the method according to the embodiment includes steps 210 and 220.

[0170] In step 210, resource configuration information is sent.

[0171] In step 220, data is sent and / or received according to the resource configuration information.

[0172] The resource configuration information includes at least one of the following: first type resource configuration information, scheduled frequency band resource, and waveform switching configuration information.

[0173] The data transmission method according to the present application is exemplarily described below by some embodiments. In some embodiments, the resource unit of the first resource includes at least one of the following: a subcarrier, a resource block, a carrier, a tone (i.e., a subcarrier), and the like. The specific implementation of the resource unit as a subcarrier is described in the following embodiments. Similarly, the method in the following embodiments is also applicable to the resource unit as a resource block, a carrier, a tone, and the like.

[0174] Embodiment 1

[0175] In this embodiment, the PAPR is reduced by using the tone reservation (first type resource) method. On this basis, the first type resource reference point, the first type resource position (also referred to as the tone reservation position or PRT position), and the first type resource pattern (also referred to as the tone reservation pattern or PRT pattern) are designed.

[0176]

Reference point

[0177] For the first type resource reference point (also referred to as the reference point), one of the following reference points can be considered:

[0178] The smallest numbered subcarrier (i.e., resource unit) of the scheduled frequency band resource is taken as the reference point;

[0179] The largest numbered subcarrier (i.e., resource unit) of the scheduled frequency band resource is taken as the reference point;

[0180] The reference point is related to the common reference point of the synchronization signal position and / or the resource block grid, and the determination of the reference point can refer to the calculation rules defined in the protocol in the related art. For example, after a user receives and decodes the downlink synchronization signal, the user can obtain the frame number and subframe number information of the downlink synchronization signal from the physical broadcast channel. In combination with the primary synchronization signal and the secondary synchronization signal information, the specific position of the downlink synchronization signal is determined, and the common reference point is a fixed offset relative to the synchronization signal position. For example, the common reference point can be defined as a fixed frequency offset of the center frequency of the downlink synchronization signal upward or downward, and a specific symbol position relative to the downlink synchronization signal in the time domain. Relating the reference point to the common reference point of the synchronization signal position and / or the resource block grid can be understood as taking the common reference point of the synchronization signal position and / or the resource block grid as the first type of resource reference point.

[0181]

PRT position

[0182] For the first type of resource position (which can also be referred to as a PRT position), the following position types can be considered:

[0183] An in-band PRT position type (i.e., the first type of resource is located in the band of the second type of resource), and the PRT can be a tone or a subcarrier or a resource block (i.e., a resource unit) within the scheduled frequency band, as shown in FIG. 3;

[0184] An edge-band PRT position type (i.e., the first type of resource is located in the edge band of the second type of resource), and the PRT can be a tone or a subcarrier or a resource block at the edge of the scheduled frequency band or a tone or a subcarrier or a resource block extended outside the scheduled frequency band;

[0185] A combined PRT position type (i.e., the first type of resource is located in the band and / or the edge band of the second type of resource), a combination of an in-band PRT position type and an edge-band PRT position type, and the PRT can be a tone or a subcarrier within the scheduled frequency band and extended at the edge / outside of the frequency band, as shown in FIG. 4, which can be combined by any in-band resource and edge-band resource.

[0186] Among them, the edge-band PRT position type (i.e., the first type of resource is located in the edge band of the second type of resource) can be subdivided into a single-edge-band PRT position type (i.e., the first type of resource is located in the single edge of the second type of resource), a uniformly divided double-edge-band PRT position type (i.e., the first type of resource is uniformly divided and located in the double edge of the second type of resource), or a non-uniformly divided double-edge-band PRT position type (i.e., the first type of resource is non-uniformly divided and located in the double edge of the second type of resource).

[0187] As shown in FIG. 5, for the single sideband PRT position type, the position of the PRT can be at the minimum numbered subcarrier end of the scheduled frequency band resource or at the maximum numbered subcarrier end of the scheduled frequency band resource, and the position of the minimum numbered subcarrier end or the maximum numbered subcarrier end is predefined or dynamically configured by high layer signaling or DCI signaling.

[0188] As shown in FIG. 6, for the equally divided double sideband PRT position type, the position of the PRT can be at both sides of the scheduled frequency band resource, and the number of PRTs at both sides is equal.

[0189] As shown in FIG. 7, for the unequally divided double sideband PRT position type, the position of the PRT can be at both sides of the scheduled frequency band resource, but the number of PRTs at both sides is not equal.

[0190] For the in-band PRT position type, the in-band PRT can have one or more PRT patterns, each pattern including one or more PRT sets (i.e., the first type of resource set) composed of different subcarrier indexes, and each set including 1 or more different subcarrier indexes, such as PRT set 1 being {1, 5, 7, 10,..., n1}, PRT set 2 being {3, 8, 10, 14,..., n2}, and the like, and the numbers in the set can be used to represent the nth1or nth2subcarrier / tone / resource block (RB) in the scheduled frequency band as the PRT subcarrier / tone / RB, n1and n2are generally positive integers less than or equal to the maximum subcarrier number or RB number in the allocated frequency band, assuming that 10 RBs are allocated to the user, the corresponding RB numbers are {1, 2, 3,..., 10}, and n1or n2in the configured PRT set is less than or equal to 10. When the PRT pattern only includes one PRT set, the PRT set is the PRT pattern.

[0191] The number of PRT tones included in the PRT sets included in different PRT patterns is equal or unequal, and the number of PRT tones included in one or more PRT sets included in the same PRT pattern is equal, i.e., the length of the PRT set can be the same or different, depending on whether the PRT set belongs to the same PRT pattern. Since the size of the resource allocated to the terminal is not fixed, the length of the PRT set included in the PRT pattern can be related to the size of the currently allocated frequency band resource when the PRT pattern is configured.

[0192] The PRT tones contained in the PRT set can be periodic or aperiodic, meaning the subcarrier indices of the PRT set are either periodic or aperiodic. If it's an aperiodic PRT set, the PRTs in the set are predefined, such as {1, 5, 7, 10, ..., n3}. If it's a periodic PRT set, the PRTs in the set can be predefined, such as {1, 13, 25, 37, ...}, with a period of m subcarriers (m is 12 in this example). Alternatively, the PRT set can contain only the starting PRT subcarrier number (i.e., the first element) or the period (i.e., the second element). Correspondingly, signaling can be used to configure the corresponding period or starting PRT subcarrier number. Alternatively, the PRT set can contain at least three elements (i.e., subcarrier indices) with equal intervals between each pair of elements. Or, the PRT set can contain only the starting PRT subcarrier number (i.e., the first element) and the period (i.e., the second element).

[0193] When a PRT pattern contains multiple PRT sets, the specific PRT set (which PRT set) is used to carry the reduced PAPR signal can be configured by the network-side higher-layer signaling or DCI signaling to configure the PRT set or set index. The corresponding signaling can be PRT set indication signaling (i.e., second indication signaling).

[0194] For the sideband PRT location type, if the PRT is a tone at the edge of the scheduled frequency band, it can be an edge resource (i.e., a sideband resource) occupying the scheduled frequency band. The edge resource belongs to the scheduled frequency band resource. If the PRT is a tone outside the scheduled frequency band, it can be an edge resource after the scheduled frequency band is extended (i.e., an extended sideband resource). The extended edge resource does not belong to the allocated frequency band resource, but is an additional extended resource located outside the allocated frequency band. This edge resource can be adjacent to the allocated frequency band resource or have a certain subcarrier or RB spacing with the allocated frequency band resource. This spacing can be predefined or configured by higher-layer signaling or DCI signaling.

[0195] For the sideband PRT location type defined above, the number of subcarriers occupied by PRT (i.e. the number of subcarriers occupied by the first type of resources) can be determined by the scheduled frequency band resources and the PRT ratio (i.e. the first resource ratio). The PRT ratio can be implemented by the higher layer signaling configuration or the DCI configuration ratio value or index. The corresponding signaling is the PRT ratio indication signaling (i.e. the third indication signaling).

[0196] For combined PRT location types, there can be one or more PRT patterns. Each pattern contains one or more PRT sets (i.e., first-class resource sets) with different subcarrier indices. Each set includes one or more different subcarrier indices, such as PRT set 1 being {-5, -2, 1, 5, 7, ..., n1}, PRT set 2 being {3, 8, 10, 14, ..., n2}, etc. The numbers in the PRT set indicate that the n1 or n2th subcarrier, tone, or RB within the allocated frequency band is a PRT subcarrier, tone, or RB. n1 and n2 may be greater than the maximum subcarrier number or RB number within the allocated frequency band. Assuming 10 RBs are allocated to the user, with corresponding RB numbers {1, 2, 3, ..., 10}, then n1 or n2 in the configured PRT set can be 11 or 12. Negative numbers indicate that the PRT is located at the minimum numbered subcarrier end of the allocated frequency band resource, while n1 and n2 greater than the allocated frequency band indicate that the PRT is located at the maximum numbered subcarrier end of the allocated frequency band resource. When a PRT pattern contains only one PRT set, the PRT set is the PRT pattern.

[0197] Similar to the in-band PRT position type, for the combined PRT position type, the number of PRT tones in the PRT sets contained in different PRT patterns may be equal or unequal. The number of PRT tones in one or more PRT sets contained in the same PRT pattern may be equal, that is, the lengths of the PRT sets may be the same or different, depending on whether the PRT sets belong to the same PRT pattern.

[0198] Similar to the in-band PRT position type, for the combined PRT position type, the PRT tones contained in the PRT set can be either periodic or aperiodic. If it is an aperiodic PRT set, the PRTs in the set are predefined configurations, for example, {-5, -2, 5, 7, 10, ..., n4}, etc.; if it is a periodic PRT set, the PRTs in the set can be predefined configurations, for example, {-11, 1, 13, 25, 37, ...}, with a period of m subcarriers (m is 12 in this example). Alternatively, the PRTs in the PRT set can be only the starting subcarrier number or the period, and correspondingly, the signaling configuration for the corresponding period or starting subcarrier number is used. Alternatively, the PRT set can contain at least 3 elements (i.e., subcarrier indices), with equal intervals between each pair of elements. Or, the PRT set can contain only the starting PRT subcarrier number (i.e., the first element) and the period (i.e., the second element).

[0199] Based on the above, when a PRT pattern contains multiple different PRT sets, the specific PRT set (i.e., which PRT set) is used to carry the reduced PAPR signal is configured by the network side higher-layer signaling or DCI signaling. This signaling is the PRT set indication signaling (i.e., the second indication signaling).

[0200] The location of a Class I resource may correspond to multiple types, such as the intra-band aperiodic PRT location type (i.e., the location type of Class I resource located within the Class II resource band, and the PRT pattern is not periodic), the intra-band periodic PRT location type (i.e., the location type of Class I resource located within the Class II resource band, and the PRT pattern is periodic), the single-sideband PRT location type (i.e., the location type of Class I resource located on one side of the Class II resource), the evenly divided double-sideband PRT location type (the location type of Class I resource evenly divided on both sides of the Class II resource), the non-evenly divided double-sideband PRT (i.e., the location type of Class I resource non-evenly divided on both sides of the Class II resource), the combined aperiodic PRT (i.e., the location type of Class I resource located within the Class II resource band and / or on the sideband, and the PRT pattern is not periodic), the combined periodic PRT (i.e., the location type of Class I resource located within the Class II resource band and / or on the sideband, and the PRT pattern is periodic), or other PRT location types, etc. The specific PRT location type can be indicated by the PRT location type indication signaling (i.e., the first indication signaling). The PRT position type indication signaling can be either higher-layer signaling or DCI signaling. If it's higher-layer signaling, it can be RRC, MAC CE, SIB, MIB, etc.; if it's DCI signaling, it can be uplink DCI signaling or downlink DCI signaling, and existing bit fields can be reused, new bit fields added, or reserved bit fields used to indicate the PRT position type. The bit field width occupied for the PRT position type indication signaling is determined by the number of supported PRT position types. Furthermore, it can be determined based on a first condition, i.e., the waveform type used. For example, if it's a DFT-s-OFDM waveform, the first type of resource can be located in the sideband of the second type of resource; if it's a CP-OFDM waveform, the first type of resource can be located within the band of the second type of resource.

[0201] [PRT Pattern]

[0202] Each PRT pattern contains one or more PRT sets, and each set includes one or more different subcarrier indices. When a PRT pattern contains only one PRT set, the PRT set is considered a PRT pattern. For the first type of resource pattern (i.e., PRT pattern), since the scheduled frequency band resources are generally used for data or reference signal transmission, if the PRT occupies the scheduled frequency band resources, the number of subcarriers in the PRT set should be as small as possible while ensuring PAPR reduction, as this may affect the performance of the transmission (e.g., the code rate increases due to reduced resources available for data transmission). If the PRT occupies resources outside the scheduled frequency band resources, the number of PRTs should also be as small as possible while ensuring PAPR reduction, as this may affect the frequency band resources allocated to other users, leading to limited system capacity.

[0203] For in-band PRT location types and combined PRT location types, it is necessary to determine the PRT pattern and the PRT set used in this transmission. When a PRT pattern contains only one PRT set, the PRT set is the PRT pattern. Therefore, when a PRT pattern contains only one PRT set, the method for determining the PRT set described below is also applicable to PRT pattern indication.

[0204] One example is that the PRT pattern is related to the size of the currently scheduled frequency band resources. Assuming (number of subcarriers in the PRT set / currently scheduled frequency band) = length ratio (i.e., the first type of resource ratio, implicitly defined, which does not require third-level signaling indication), for example, length ratio 1 < length ratio 2 < length ratio 3 < length ratio 4 < ... < 1, or 1 > length ratio 1 > length ratio 2 > length ratio 3 > length ratio 4 > ..., the size of the scheduled frequency band resources can be frequency band 1 < frequency band 2 < frequency band 3 < frequency band 4 < ... <= system bandwidth. Then the correspondence between frequency bands and length ratios can be one-to-one, one-to-many, or many-to-one. Each length ratio corresponds to one PRT pattern in each frequency band, and each pattern contains multiple possible PRT sets. The PRT positions (i.e., subcarrier indices) contained in different PRT sets can be different, partially the same, or completely different.

[0205] When the correspondence between frequency bands and length ratios is one-to-one (each scheduled frequency band corresponds to a type of first-class resource ratio, and the first-class resource ratio corresponds to a type of PRT pattern), the allowed length ratio for each frequency band is uniquely determined. This determination relationship can be predefined (e.g., listed, see Table 1, where the number of PRTs within the frequency band increases with its size) or configured by higher-layer signaling or DCI signaling (i.e., the first-class resource ratio is indicated by the third indication signaling). Once the frequency band is determined, the corresponding length ratio is determined (i.e., the PRT pattern is determined). Optional PRT sets can be determined, and the specific PRT set or set index is configured by PRT set indication signaling (i.e., the second indication signaling).

[0206] Table 1. Correspondence between different frequency bands and length ratios (one-to-one) and PRT sets.

[0207] When the correspondence between frequency bands and length ratios is one-to-many (each scheduled frequency band corresponds to at least two types of first-class resource ratios, and each length ratio corresponds to one PRT pattern), there are multiple options for the allowed ratios for each frequency band. These can be listed (see Table 2). The PRT pattern and the number of subcarriers within the set are variable, or the length ratio can be configured by higher-layer signaling or DCI signaling (i.e., the first-class resource ratio is indicated by the third indication signaling). Once the frequency band is determined, the corresponding length ratio is determined (i.e., the PRT pattern is determined). The PRT set can be determined, and the specific PRT set or set index is configured by PRT set indication signaling (i.e., the second indication signaling). This correspondence is applicable to larger frequency bands.

[0208] Table 2. Correspondence between different frequency bands and length ratios (one-to-many) and PRT sets.

[0209] When the correspondence between frequency bands and length ratios is many-to-one (at least two scheduled frequency bands correspond to the same first-class resource ratio, and each frequency band corresponds to a PRT pattern under each length ratio), the ratios corresponding to different frequency bands may be the same, but the number of subcarriers contained in the set may be different. This can be listed, see Table 3. The PRT increases with the increase of frequency band, but the increase rate is slower than one-to-one; or the length ratio can be configured by higher-layer signaling or DCI signaling (i.e., the first-class resource ratio is indicated by the third indication signaling). Once the frequency band is determined, the corresponding length ratio is determined (i.e., the PRT pattern is determined). The PRT set can be determined, and the specific PRT set index is configured by the PRT set indication signaling (i.e., the second indication signaling).

[0210] Table 3. Correspondence between different frequency bands and length ratios (many-to-one) and PRT sets.

[0211] For the PRT sets, multiple PRT set lists can be formed. For example, a list composed of multiple predefined tone sets with different subcarrier indexes. Each PRT set in the list contains multiple different subcarrier indexes, and the specific PRT set index is configured by the PRT set indication signaling (i.e., the second indication signaling). The PRT set index can index to a specific PRT set, and the subcarriers in this set are used to carry the reduced PAPR signal. A tabular relationship is shown in Table 4 or 5 or 6. In this relationship, each index corresponds to only one PRT pattern, and each pattern contains only one PRT set. Therefore, the PRT set is equivalent to the PRT pattern, and the signaling for indicating the PRT set is equivalent to the signaling for indicating the PRT pattern. The PRT set indication signaling for indicating the PRT set index can be the same for different set series, such as the x series in Table 5 and the y series in Table 6. For example, when the scheduled frequency band resource <= Band 1, the relationship between the PRT set indicated by the PRT set indication signaling and the index is shown in Table 5, indicating the x series; when the scheduled frequency band resource Band 1 < BW <= Band 2, the relationship between the PRT set indicated by the PRT set indication signaling and the index is shown in Table 6, indicating the y series.

[0212] Table 4 Relationship between PRT set index and PRT set

[0213] Table 5 Relationship between PRT set index and PRT set

[0214] Table 6 Relationship between PRT set index and PRT set

[0215] In one example, the relationship between the frequency band and length ratio described above can be decoupled. The network side uses length ratio indication signaling (i.e., third indication signaling) to configure the PRT length ratio' (i.e., the first type of resource ratio) and determine the pattern, as shown in Table 7. Each length ratio' corresponds to a type of PRT pattern, and each PRT pattern corresponds to one or more different PRT sets, as shown in Table 8. When a PRT pattern contains only one PRT set, the PRT pattern is the PRT set, and the signaling used to indicate the PRT set is the signaling to indicate the PRT pattern. For a PRT set, multiple PRT sets corresponding to a PRT pattern can be listed, for example, a list consisting of multiple predefined tone sets with different subcarrier indices. Each PRT set in the list contains multiple different subcarrier indices, and the specific PRT set index is configured by PRT set indication signaling (i.e., second indication signaling). The PRT set index can index a specific PRT set, and the subcarriers in this set are used to carry the reduced PAPR signal. One such list-based relationship is shown in Tables 4, 5, or 6. In this relation, each index corresponds to only one PRT pattern, and each pattern contains only one PRT set. Therefore, the PRT set is equivalent to the PRT pattern.

[0216] Table 7 Relationship between Length Ratio Index and Length Ratio

[0217] Table 8. Relationship between Length Ratio Index and PRT Set

[0218] For example, when 10 RBs are configured, and the length ratio 'index' (indicated by the third indication signaling) indicates that the length ratio '1' is 10%, then the PRT pattern corresponding to the length ratio '1' (10RB * 12 subcarriers * 10% = 12 subcarriers) contains the following PRT sets: set 1 {1, 3, 5, 8, 15, 48, 36, 40, 56, 66, 76, 90}; set 2 {1, 2, 4, 7, 19, 28, 35, 70, 81, 93, 110, 120}. Specifically, the PRT set used in this case is indicated by the PRT set indication signaling (i.e., the second indication signaling). Assuming that the index indicated by this signaling is 1, the corresponding PRT set is PRT set 1 {1, 3, 5, 8, 15, 48, 36, 40, 56, 66, 76, 90}. The numbers in parentheses represent the subcarrier indices, and the subcarriers corresponding to the subcarrier indices are used to carry the reduced PAPR signal.

[0219] If the PRT set indication signaling (i.e., the second indication signaling) is a higher-level signaling, it can be higher-level signaling such as RRC, MAC CE, SIB, and / or MIB to indicate the PRT set index; if the indication signaling is a DCI signaling, it can be downlink DCI signaling or uplink DCI signaling, and existing bit fields can be reused, new bit fields can be added, or reserved bit fields can be used to indicate the set index. The bit field width occupied by the PRT set indication signaling is determined by the number of supported PRT sets.

[0220] Based on the above, mapping and / or demapping of the first type of signal can be performed according to at least one of the following rules based on the subcarrier index in the determined PRT set;

[0221] The process begins with the smallest subcarrier number of the scheduled resource (assumed to be subcarrier 0) as the initial subcarrier, and is executed sequentially in the frequency domain and then in the time domain according to the determined subcarrier index.

[0222] Using the first type of resource reference point as the initial subcarrier, the process is executed sequentially in the frequency domain and then in the time domain according to the determined subcarrier index.

[0223] If any of the subcarrier indices in any of the first type of resource sets is negative -A, then the Ath subcarrier preceding the smallest numbered subcarrier of the scheduled frequency band resource is mapped and / or demapped.

[0224] If any subcarrier index C in any of the first type of resource sets is greater than the maximum number of the scheduled frequency band resource subcarrier, then the Cth subcarrier located outside the scheduled frequency band resource is mapped and / or demapped.

[0225] The first type of resource set on different time domain symbols contains the same subcarrier index;

[0226] The rules are consistent across different time domain symbols.

[0227] Assuming the scheduled frequency band resources consist of 10 resource blocks, the PRT set determined by the above method includes subcarrier indices of {1, 8, 20, 25, 34, 50, 62, 70, 80, 98}, denoted as k. PRT Taking the smallest numbered subcarrier of the scheduled frequency band resources (assumed to be subcarrier 0) as an example, when the PRT carries a reduced PAPR signal, its mapping method is as follows:

[0228] Based on the subcarrier index (i.e., the corresponding frequency domain resource) in the configured PRT set, determine the resource element (k) allocated to this signal. PRT , l), and increment in the following order: first, the frequency domain subcarrier index k PRT , where k PRT' represents the smallest index of the subcarrier index in the set within the scheduled frequency band resources, relative to the smallest numbered subcarrier of the scheduled frequency band resources. In this example, k PRT 'equals 1, meaning the mapping starts from the 0th subcarrier of the allocated frequency band resource, followed by index l, where l represents the time-domain symbol index of the scheduled frequency band resource. k PRT The subcarriers can be (1, 8, 20, 25, 34, 50, 62, 70, 80, 98)-1 in sequence, and l can be the time-domain symbols 0, 1, 2, 4, 5, 6, 7, 8, 9, 11, 12 in sequence.

[0229] For complex modulation symbols (such as data signals), the mapping should ascend in the following order, based on the resource element (k, l) allocated to the signal: first, the index k of the subcarrier on the allocated resource block (e.g., a virtual resource block, or a scheduled frequency band resource), where k0 is the first subcarrier in the smallest numbered resource block (e.g., a virtual resource block, or a scheduled frequency band resource) allocated for transmission; then, the index l, with the starting position given by the protocol. Here, k is equal to 0 to 119 and is not equal to k. PRT , l can be the 0th, 1st, 2nd, 4th, 5th, 6th, 7th, 8th, 9th, 11th, and 12th time-domain symbols, respectively.

[0230] [PRT ratio / Number of PRT subcarriers]

[0231] For the sideband PRT location type, it is necessary to determine the proportion of scheduled frequency band resources occupied by the number of PRT subcarriers (i.e., the proportion of the first type of resource, also known as the PRT proportion, which can be simply referred to as the proportion below):

[0232] For single-sideband PRT location types and evenly distributed double-sideband PRT location types, the number of PRT subcarriers occupied (i.e., the number of subcarriers occupied by the first type of resources) is indicated by PRT ratio signaling (i.e., the third indication signaling). Multiple ratios can be listed and indexed to the corresponding ratio by the index in the PRT ratio indication. Each ratio is less than 1.

[0233] Similarly, when configuring the PRT ratio, it can be related to the size of the currently scheduled frequency band resources. Assuming (number of PRT subcarriers / currently scheduled frequency band) = ratio, for example, ratio 1 < ratio 2 < ratio 3 < ratio 4 < ... < 1 or 1 > ratio 1 > ratio 2 > ratio 3 > ratio 4 > ..., the size of the scheduled frequency band resources can be frequency band 1 < frequency band 2 < frequency band 3 < frequency band 4 < ... <= system bandwidth. Therefore, the correspondence between frequency bands and ratios can be one-to-one, one-to-many, or many-to-one. Specifically, the number of PRT subcarriers corresponding to each ratio in each frequency band is the ratio (i.e., the first type of resource ratio) * the scheduled frequency band resources.

[0234] When the correspondence between frequency bands and ratios is one-to-one, the allowable ratio for each frequency band is uniquely determined. This determination relationship can be predefined, as shown in Table 9. When the scheduled frequency bands are determined, the PRT resource ratio is determined, and the number of subcarriers used to carry the reduced PAPR signal is determined.

[0235] Table 9 Frequency Band and Ratio (One-to-One)

[0236] When the correspondence between frequency bands and ratios is one-to-many, there are multiple options for the allowed ratios for each frequency band, as shown in Table 10. The specific PRT ratio index is configured by the PRT ratio indication signaling (i.e., the third indication signaling). When the scheduled frequency band is determined, the PRT resource ratio is determined through the PRT ratio indication signaling, and then the number of subcarriers used to carry the reduced PAPR signal is determined.

[0237] Table 10 Frequency Bands and Ratios (One-to-Many)

[0238] When the correspondence between frequency bands and ratios is many-to-one, the ratios corresponding to different frequency bands may be the same (e.g., in a list, see Table 11). When the frequency bands to be scheduled are determined, the PRT resource ratio is determined, and the number of subcarriers used to carry the reduced PAPR signal is determined.

[0239] Table 11 Frequency Bands and Ratios (Many-to-One)

[0240] As an example, when configuring the PRT ratio, the appropriate ratio index under the currently allocated frequency band resources can be configured by the PRT ratio indication signaling (i.e., the third indication signaling). The correspondence between the index and the ratio is shown in Table 12. The PRT resource ratio is determined by the PRT ratio indication signaling, and then the number of subcarriers used to carry the reduced PAPR signal is determined.

[0241] Table 12 PRT Scale Index Correspondence

[0242] For single-sideband PRT position types and evenly distributed double-sideband PRT position types, if the PRT ratio indication signaling (i.e., the third indication signaling) is a higher-layer signaling, it can be higher-layer signaling such as RRC, MAC CE, SIB, MIB, etc., to indicate the PRT ratio index. If the indication signaling is DCI signaling (i.e., the third indication signaling), it can be downlink DCI signaling or uplink DCI signaling, and existing bit fields can be reused, new bit fields can be added, or reserved bit fields can be used to indicate the TR ratio index. For PRT ratio indication signaling, the bit field width occupied is determined by the number of supported PRT ratios.

[0243] For the evenly distributed double-sideband PRT location type, the configuration method of the single-sideband PRT location type can be referenced. The difference is that for a given number of PRTs M, 1 / 2*M of the PRTs are located at the smallest numbered subcarrier end of the scheduled frequency band resources, and 1 / 2*M of the PRTs are located at the largest numbered subcarrier end of the scheduled frequency band resources. That is, the proportion of the first type of resources on both sides is equal.

[0244] For the non-uniformly divided double-sideband PRT location type, the first type of resource ratio includes at least two first type of resource ratios, namely the first type of resource ratio of the smallest numbered subcarrier end and the first type of resource ratio of the largest numbered subcarrier end of the scheduled frequency band resources.

[0245] For non-uniformly split double-sided PRT location types, the double-sided PRT ratio needs to be configured. The number of PRTs occupied by one side is indicated by the PRT ratio signaling (i.e., the third indication signaling). The multiple ratios corresponding to both sides (indicated by multiple third indication signaling) can be listed and indexed to the corresponding ratio by the index in the PRT ratio indication. Each length ratio is less than 1, and the PRT ratios on both sides are not equal.

[0246] When configuring the PRT ratio, it can be related to the size of the currently scheduled frequency band resources. Assuming (number of PRT subcarriers / currently scheduled frequency band) = ratio, for example, ratio 1 < ratio 2 < ratio 3 < ratio 4 < ... < 1 or 1 > ratio 1 > ratio 2 > ratio 3 > ratio 4 > ..., the allocated frequency band resources can be frequency band 1 < frequency band 2 < frequency band 3 < frequency band 4 < ... <= system bandwidth. Then the correspondence between frequency band and ratio can be one-to-one, one-to-many, or many-to-one. The number of PRTs corresponding to each ratio in each frequency band is the ratio * the allocated frequency band resources.

[0247] When the correspondence between frequency bands and unilateral ratios is one-to-one, the allowable ratio for each frequency band is uniquely determined. This determination relationship can be predefined (e.g., listed in Tables 13 and 14). When the scheduled frequency bands are determined, the bilateral PRT resource ratio is determined, and the number of subcarriers used to carry the reduced PAPR signal is determined.

[0248] Table 13 shows the one-to-one ratio of Category I resources between frequency bands and the smallest numbered subcarrier.

[0249] Table 14 shows the one-to-one ratio of Category I resources between frequency bands and the largest numbered subcarrier.

[0250] When the correspondence between frequency bands and unilateral ratios is one-to-many, there are multiple options for the allowed ratios for each frequency band, as shown in Tables 15 and 16. The specific PRT ratio index can be configured by the PRT ratio indication signaling (i.e., the third indication signaling). When the scheduled frequency bands are determined, the bilateral PRT resource ratio is determined by the PRT ratio indication signaling, and then the number of subcarriers used to carry the reduced PAPR signal is determined.

[0251] Table 15 shows the ratio of Category I resources between frequency bands and the smallest numbered subcarrier in a one-to-many manner.

[0252] Table 16 shows the ratio of Category I resources between frequency bands and the largest numbered subcarrier.

[0253] When the correspondence between frequency bands and single-sided ratios is many-to-one, the ratios corresponding to different frequency bands may be the same (e.g., in a list format, see Tables 17 and 18). When the scheduled frequency bands are determined, the PRT resource ratio is determined, and the number of subcarriers used to carry the reduced PAPR signal is determined.

[0254] Table 17: Many-to-one ratio of Category I resources for frequency bands and smallest numbered subcarriers.

[0255] Table 18 shows the ratio of many-to-one type of resources for the frequency band and the largest numbered subcarrier.

[0256] In some examples, when configuring the unilateral PRT ratio, the appropriate ratio index for the currently allocated frequency band resources is configured by the PRT ratio indication signaling: {first-class resource ratio index for the smallest numbered subcarrier end, first-class resource ratio index for the largest numbered subcarrier end} or {first-class resource ratio index for the largest numbered subcarrier end, first-class resource ratio index for the smallest numbered subcarrier end}. The correspondence between the index and the ratio is shown in Tables 19 and 20. The bilateral PRT resource ratio is determined through the PRT ratio indication signaling, which in turn determines the number of bilateral subcarriers used to carry the reduced PAPR signal.

[0257] Table 19: Correspondence of the First Type of Resource Ratio Index for the Smallest Numbered Subcarrier End

[0258] Table 20: Correspondence of Category I Resource Ratio Index for Subcarriers with Maximum Numbers

[0259] If the PRT ratio indication signaling (i.e., the third indication signaling) is a higher-level signaling, it can be a higher-level signaling such as RRC, MAC CE, SIB, and / or MIB to indicate the bilateral PRT ratio index. If the indication signaling is a DCI signaling (i.e., the third indication signaling), it can be a downlink DCI signaling or an uplink DCI signaling, and can reuse existing bit fields, add new bit fields, or use reserved bit fields to indicate the bilateral PRT ratio index. For bilateral PRT ratio indication signaling, the bit field width occupied is determined by the number of PRT ratios supported by both sides. The bilateral PRT ratio indication signaling can reuse the ratio indication signaling of a single-sided or evenly distributed bilateral band PRT.

[0260] Based on the above, the first type of signal can be mapped and / or demapped according to at least one of the following rules, based on the number of subcarriers corresponding to the determined first type of resource ratio;

[0261] The process begins with the subcarrier with the smallest number of the scheduled resource as the starting subcarrier, and is executed sequentially in the frequency domain and then in the time domain.

[0262] The last subcarrier, determined by the smallest number of the scheduled resource, is executed sequentially in the frequency domain and then in the time domain.

[0263] The process begins with the subcarrier with the largest number of the scheduled resource as the starting subcarrier, and then proceeds sequentially in the frequency domain and then the time domain.

[0264] The last subcarrier, determined by the largest number of the scheduled resource, is executed sequentially in the frequency domain and then in the time domain.

[0265] The first subcarrier, determined by the first resource reference point, is executed sequentially in the frequency domain and then in the time domain.

[0266] Assuming the scheduled frequency band resources are 10 resource blocks, the number of PRTs determined by the above method is 10, and the subcarrier index is denoted as k. PRT Taking the smallest numbered subcarrier of the scheduled resource (assumed to be subcarrier 0) as an example, when the PRT carries a reduced PAPR signal, its mapping method is as follows:

[0267] For single-sideband (SSB) PRT location types, when the SSB PRT is located at the smallest numbered subcarrier end of the scheduled frequency band resource, the subcarrier index can be {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; when the SSB PRT is located at the largest numbered subcarrier end of the scheduled frequency band resource, the subcarrier index can be {111, 112, 113, 114, 115, 116, 117, 118, 119, 120}; when the single-sideband ... When a sideband PRT is located at the smallest subcarrier of a scheduled resource and is an extended resource, the subcarrier index can be {-10, -9, -8, -7, -6, -5, -4, -3, -2, -1}. When a single-sideband PRT is located at the largest subcarrier of a scheduled resource and is an extended resource, the subcarrier index can be {121, 122, 123, 124, 125, 126, 127, 128, 129, 130}, etc. Based on the determined number of PRTs and the PRT location type, the PRT pattern can be uniquely determined.

[0268] Based on the configured PRT number of 10, index k is used as the subcarrier. PRT Taking {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} as an example, determine the resource element (k) allocated to the first type of signal. PRT , l), and increment in the following order: first, the frequency domain subcarrier index k PRT , where k PRT ' represents the smallest index of the subcarrier index in the set within the allocated frequency band resources. This index is relative to the smallest numbered subcarrier in the scheduled frequency band resources. In this example, k PRT 'equals 1, meaning the mapping starts from the 0th subcarrier of the allocated frequency band resources, followed by index l, where l represents the time-domain symbol index of the scheduled resources. k PRT The subcarriers can be (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)-1 in sequence, and the time-domain symbols l can be 0, 1, 2, 4, 5, 6, 7, 8, 9, 11, 12 in sequence.

[0269] For complex modulation symbols (such as data signals), the mapping should ascend in the following order based on the resource element (k, l) allocated to the signal: first, the index k of the subcarrier on the allocated resource block (e.g., a virtual resource block, or a scheduled frequency band resource), where k0 is the first subcarrier in the smallest numbered resource block (e.g., a virtual resource block, or a scheduled frequency band resource) allocated for transmission; then, the index l, with the starting position given by the protocol. Where k is equal to 0 to 119 and not equal to k. PRT The subcarrier number / index, l can be time-domain symbols 0, 1, 2, 4, 5, 6, 7, 8, 9, 11, 12 in sequence.

[0270]

PRT Function

[0271] The PRT function, also known as the function of signals carried on Type 1 resources, is used to carry signals that reduce PAPR (Progressive PAPR). Besides carrying PAPR-reducing signals, PRT can also carry data signals or sensing signals. When PAPR meets the requirements, PRT can be left empty (e.g., 0). However, to maximize resource utilization, when PAPR meets the requirements, useful information, such as data or sensing information, should be carried on PRT. The PRT function is determined by the PRT function indicator bit (i.e., the fourth indicator signaling) and configured by the network side for the receiving end.

[0272] Assuming the PRT function indicator occupies at least 2 bits, when PRT is configured and PAPR meets the requirements, it can be done as shown in Table 21:

[0273] If the PRT function indicator bit is the first indicator (such as "0"), then the first type of resource is used to carry all-zero signals, and the PRT is left empty to avoid increasing the complexity when optimizing PAPR. The receiving side removes the corresponding PRT for decoding based on the fact that the PRT is disabled for carrying PAPR signals.

[0274] If the PRT function indicator bit is the second indicator (such as "10"), the PRT can be used to carry data signals. The receiving side decodes the PRT together with the tone used for data according to the PRT being disabled to carry the downPAPR signal.

[0275] If the PRT function indicator bit is the third indicator (such as "11"), then the PRT can be used to carry sensing signals. The receiving side uses the information on the PRT for sensing processing according to the PRT being disabled to carry the PAPR signal.

[0276] If the PRT function indicator bit is the fourth indicator (such as "00"), then the PRT can be used to carry reference signals;

[0277] If the PRT function indicator bit is the fifth indicator (such as "001"), then the PRT can be used to carry power adjustment signals;

[0278] If the PRT function indicator bit is the sixth indicator (such as "010") or does not exist, the PRT can be used to carry the peak-to-average power ratio (PAPR) signal. The receiver removes the PRT for decoding based on the PRT being enabled to carry the PAPR signal.

[0279] Table 21 PRT Function Indicator Bits Corresponding to PRT Uses

[0280] In some examples, when PRT is configured and PAPR meets the requirements, whether PRT is used to carry data information, sensing information, or a decremented PAPR signal can be determined as follows: the PRT function indication bit (i.e., the fourth indication signaling) can be a combination of the first and second signaling, where the first signaling is an enable / disable PRT function indication, and the second signaling is the PRT function indication bit. See Table 22 for examples, as follows:

[0281] When the PRT function indicator is enabled, if the PRT function indicator bit is the first indicator, it means that the PRT is used to carry data information. The receiving side understands that the PRT is disabled for PAPR reduction according to the first indicator and decodes the PRT together with the tone used for data.

[0282] When the PRT function indicator is enabled, if the PRT function indicator bit is the second indicator, it means that the PRT is used to carry sensing information. The receiving side understands that the PRT is disabled for PAPR reduction according to the second indicator and uses the information on the PRT for sensing processing.

[0283] When the PRT function is disabled, it means that the PRT can be used to carry the PAPR down-probability signal. The receiver understands that the PRT is used for PAPR down-probability based on the PRT function being disabled, and removes the PRT for decoding.

[0284] Table 22 Relationship between First Signaling and Second Signaling and Determination of Corresponding PRT Functions

[0285] In some examples, the PRT function indicator bit can reuse the PRT position type indicator signaling, PRT set indicator signaling, or PRT ratio indicator signaling in the above embodiments. For example, a specific PRT set indicator or PRT ratio indicator is used for the transmission of a specific signal, such as a decremented PAPR signal, a reference signal data signal, or a sensing signal.

[0286] In some examples, when at least two PRT sets or two PRT scale indicators are configured, the tone of the first set or the first PRT scale indicator can be used as a PRT carrying a reduced PAPR signal, and the tone of the second set or the second PRT scale indicator can be used for other purposes, such as data transmission, sensing, or idle, etc.

[0287]

Conditions for Activating PRT

[0288] The PRT activation conditions are the same as the first type of resource activation conditions. Regarding PRT configuration signaling, at least one of the following must be included: PRT location type indication signaling (i.e., first indication signaling), PRT set indication signaling (i.e., second indication signaling), PRT ratio indication signaling (i.e., third indication signaling), and PRT function indication signaling (i.e., fourth indication signaling). Whether or not it is enabled must meet at least one of the following signaling or conditions:

[0289] Higher-layer signaling indicates whether the relevant PRT configuration signaling is enabled. If the PRT configuration signaling is carried by each DCI format, then the higher-layer signaling should indicate whether the PRT configuration signaling is enabled for the corresponding DCI format. If the PRT configuration signaling is carried by higher-layer signaling, then the higher-layer signaling controls all PRTs configured by the higher-layer signaling.

[0290] For DCI signaling, if PRT configuration signaling is carried by each DCI format, it is necessary to indicate whether PRT configuration signaling is enabled in each DCI format.

[0291] When the MCS is higher than a certain threshold or the modulation order is higher than a certain order, that is, when the configured MCS is higher than the MCS threshold or its modulation order is higher than the order threshold, the network side enables PRT configuration signaling to carry the reduced PAPR signal through PRT configuration.

[0292] When the scheduled frequency band resources exceed a certain threshold, that is, when the configured frequency band resources exceed a certain frequency band threshold, the network side enables PRT configuration signaling to carry the PAPR reduction signal through PRT configuration.

[0293] For coverage performance, if the measured uplink reference signal energy / SINR is lower than a certain threshold, i.e., when the measured channel quality (energy or SINR) is lower than the RSRP or SINR threshold (at which point higher transmit power may be required), the network side enables PRT configuration signaling to carry the reduced PAPR signal by configuring PRT. If the measured downlink reference signal energy / SINR is lower than a certain threshold, i.e., when the measured channel quality (energy or SINR) is lower than the RSRP or SINR threshold (at which point higher transmit power may be required), the terminal requests to enable PRT configuration signaling. After the network side configures PRT, the terminal carries the reduced PAPR signal according to the configured PRT.

[0294] For the introduced enable indications (enable indications in higher-layer signaling or DCI signaling), the ranges are {enabled, disabled}:

[0295] "Enabled" indicates that PRT configuration signaling is present, and the receiving side follows the PRT configuration signaling fields.

[0296] "Disabled" means that PRT configuration signaling is not present, and that the receiving side follows traditional parameters when using DCI format for scheduling.

[0297] [PRT Conflict Resolution]

[0298] The current system contains various signal types, such as synchronization signals, demodulation reference signals, phase tracking reference signals, probe reference signals, or channel state information reference signals. When predefining or configuring PRT, the configured PRT should not conflict with any of the above signals, that is, it should only occupy a part of the subcarrier / tone where the original data information is located.

[0299] Type I resource conflict resolution (also known as PRT conflict resolution) includes at least one of the following rules:

[0300] When the first type of resources is configured to carry the first type of signals that are not data signals, the complex modulation symbols are mapped and / or demapped on the scheduled resources in accordance with the rule of first frequency domain and then time domain, and the subcarriers corresponding to the first type of resources are skipped.

[0301] When the first type of resource is configured to carry a non-data signal, and when calculating the resource elements available for the data bit sequence on the scheduled resources, the number of subcarriers used for that bit sequence is the number of subcarriers corresponding to the first type of resource removed.

[0302] When the first type of resource is configured to carry a first type of signal that is not a data signal, when calculating the resource elements available for data bit sequences on the scheduled resources, the resource elements used for that bit sequence must exclude the resource elements corresponding to the first type of resource.

[0303] When the first type of resource is configured to carry the first type of signal, the demodulation reference signal is mapped and / or demapped on the scheduled resources in accordance with the rule of first frequency domain and then time domain, and the first type of resource does not overlap with the resource used to carry the demodulation reference signal.

[0304] Example 2

[0305] In this embodiment, candidate waveform types, waveform switching indicators, waveform switching enable conditions, and DMRS scrambling issues are designed.

[0306] [Candidate Waveform Types]

[0307] The candidate waveform types used for switching may include at least one of the following:

[0308] Discrete Fourier Transform Orthogonal Frequency Division Multiplexing (DFT-s-OFDM);

[0309] Cyclic prefix orthogonal frequency division multiplexing (CP-OFDM);

[0310] Windowed-OFDM in the time domain, such as adding a rectangular window in the time domain;

[0311] Weighted overlap with add (CP-OFDM with WOLA) cyclically expands OFDM symbols. In addition to the regular CP, the data portion is truncated to a certain length and placed at the beginning and end of the symbol as a waveform structure. WOLA stands for weighted overlap with add.

[0312] Filtered Orthogonal Frequency Division Multiplexing (filtered-OFDM) is a waveform structure that uses filters for filtering.

[0313] Flexible symbolic orthogonal frequency division multiplexing (flexible-OFDM) splits the original CP part and places the waveform structure of CP and ZP;

[0314] Filter bank orthogonal frequency division multiplexing (FB-OFDM) achieves per-subcarrier filtering by adding a polyphase filter and supports flexible selection of pulse function waveform structure;

[0315] Zero-tailed Discrete Fourier Transform Orthogonal Frequency Division Multiplexing (ZT DFT-s-OFDM) is based on DFT-s-OFDM by inserting a zero tail within the symbol (before the DFT) to replace the waveform structure of the CP.

[0316] Guard Interval Discrete Fourier Transform Orthogonal Frequency Division Multiplexing (GIDFT-s-OFDM) is a waveform structure based on DFT-s-OFDM waveforms with a GI (Guard Interval) sequence inserted at the end of the symbol to replace the CP.

[0317] Orthogonal Time-Frequency Division Multiplexing (OTFDM) is a waveform structure that is frequency-domain extended and shaped based on the DFT-s-OFDM structure.

[0318] Orthogonal Time-Frequency Space (OTFS) is a waveform structure based on OFDM that uses symplectic Fourier transform pairs for precoding.

[0319] eDFT-s-OFDM: A waveform structure based on DFT-s-OFDM that uses the beginning and end sequences instead of the CP. Sequences S2 and S1 are inserted before and after the data sequence Data in the data block, respectively. Sequences S2 and S1 are the beginning sequence S2 and the end sequence S1 contained in the time-domain reference signal RS of the reference signal block.

[0320] Waveform Switching

[0321] Currently, downlink primarily uses CP-OFDM waveforms. When any of the candidate waveforms is used in DL waveforms, PAPR can be reduced to some extent, thereby enhancing coverage. The following example demonstrates waveform switching indication design to inform the terminal whether a waveform switch has occurred, using CP-OFDM and DFT-S-OFDM waveforms for DL. These two waveforms are only examples; when more waveforms are supported, the length of the corresponding indication bit field can be appropriately extended. In other words, the bit width of the waveform switching indication is determined by the supported waveforms. Compared to CP-OFDM waveforms, DFT-S-OFDM waveforms involve an additional transmission precoding process (DFT).

[0322] For waveform switching indication signaling (i.e., the fifth indication signaling), it can be downlink control information (DCI) for scheduled downlink, DCI for non-scheduled downlink, or higher-layer signaling. The three corresponding methods are as follows:

[0323] Method 1: The waveform is switched by the DCI indicator of the downlink scheduler (DCI format 1_1, DCI format 1_2, or DCI format 1_3, etc.), for example, by adding a bit field (e.g., 1 bit) and reusing an existing bit field, wherein reusing an existing bit field includes at least one of the following methods:

[0324] 1) Reuse existing bit fields, such as: reserved bits, Time Domain Resource Allocation (TDRA), MCS, Hybrid Automatic Repeat reQuest (HARQ) process number, Physical Uplink Control Channel (PUCCH) resource indicator, or PDSCH-to-HARQ feedback timing indicator. For example, reusing the MCS bit field is beneficial because high code rate and / or high-order modulation schemes are rarely used under coverage-limited conditions; therefore, reusing the high-order bits of the MCS indicates whether waveform switching is required.

[0325] 2) Reconfigure the field usage (belonging to display indicators), such as reusing the TDRA indicator to indicate waveform switching, such as adding a column to the TDRA table and associating different rows of the TDRA table with different waveforms; or associating MCS with waveforms, such as adding a column to the MCS table and associating different rows of the MCS table with waveforms.

[0326] 3) Determined based on conditions of the scheduling information (an implicit indication), including at least one of the following:

[0327] For example, the number of RBs (below or above a certain threshold);

[0328] If the MCS index is below or above a certain threshold, DFT-s-OFDM is used when it is below the threshold and CP-OFDM is used when it is above the threshold, and vice versa.

[0329] Based on the DMRS CDM indication, if Number of DMRS CDM group(s) without data is configured (data and DMRS are FDMed), then DFT-s-OFDM is used; otherwise, CP-OFDM (which is a display indication) is used.

[0330] When the number of layers exceeds a certain threshold, DFT-s-OFDM is used when there is only one layer, and CP-OFDM is used when there are multiple layers.

[0331] Related to the channel type, as detailed below:

[0332] For PUCCH, PUCCH formats 0, 1, and 2 all use CP-OFDM. In R18 coverage enhancement, PUCCH coverage performance was standardized by using repetitive transmission. Coverage performance can also be further enhanced when using waveforms with lower PAPR. Waveform switching indicators include at least one of the following:

[0333] 1) Based on a specific PUCCH format, such as when waveform switching is configured (waveform switching enabled, etc.), when the PUCCH format is 0, 1 or 2, an enhanced waveform (such as DFT-s-OFDM) can be used for modulation and transmission. If waveform switching is not configured (waveform switching disabled), when the PUCCH format is 0, 1 or 2, a traditional waveform (such as CP-OFDM) is used for modulation and transmission.

[0334] 2) Based on whether PUCCH repetition is configured, if a PUCCH is configured for repeated transmission, an enhanced waveform is used for modulation and transmission; if repetition is not configured, a conventional waveform is used for modulation and transmission. This PUCCH can be 0 / 1 / 2 / 3 / 4, etc.

[0335] 3) Based on whether the configured PUCCH repetition reaches a threshold, if the number of repetitions of a certain PUCCH is greater than a certain threshold, then an enhanced waveform is used for modulation and transmission; if it is less than the threshold, then a traditional waveform is used for modulation and transmission. The PUCCH can be 0 / 1 / 2 / 3 / 4, etc.

[0336] For the Physical Downlink Shared Channel (PDSCH), waveform switching indications include at least one of the following:

[0337] 1) Based on the resource allocation type (MSB or LSB of RA), different types of FDRA are associated with waveforms. For example, when a continuous frequency domain resource type is configured (resource allocation type 1), it corresponds to an enhanced waveform (such as DFT-s-OFDM), and when a non-continuous frequency domain resource type is configured (resource allocation type 0), it corresponds to a traditional waveform (such as CP-OFDM).

[0338] 2) Based on whether PDSCH repetition is configured, if repetition is configured, an enhanced waveform (such as DFT-s-OFDM waveform) is used; if repetition is not configured, a traditional waveform (such as CP-OFDM waveform) is used.

[0339] 3) Based on whether the configured PDSCH repetition reaches a threshold, if the number of repetitions of a certain PDSCH configuration is greater than a certain threshold, then an enhanced waveform is used for modulation and transmission; if it is less than the threshold, then a traditional waveform is used for modulation and transmission.

[0340] 4) Based on DCI scrambling with different RNTI types, the PDSCH scheduled by DCI scrambling with different RNTI types is related to the waveform. If waveform switching is configured, the enhanced waveform is used for PDSCH scheduled by DCI scrambling with specific RNTI (such as P-RNTI, SI-RNTI, RA-RNTI, TC-RNTI, CS-RNTI, MCS-RNTI or PEI-RNTI, etc.). If waveform switching is not configured, the traditional waveform is used for PDSCH scheduled by DCI scrambling with specific RNTI.

[0341] For the Physical Downlink Control Channel (PDCCH), waveform switching indications include at least one of the following:

[0342] 1) Based on whether PDCCH repetition is configured, if repetition is configured, an enhanced waveform (such as DFT-s-OFDM waveform) is used; if repetition is not configured, a traditional waveform (such as CP-OFDM waveform) is used.

[0343] 2) Based on whether the configured PDCCH repetition reaches a threshold, if the number of repetitions configured for a certain PDCCH is greater than a certain threshold, then an enhanced waveform is used for modulation and transmission; if it is less than the threshold, then a traditional waveform is used for modulation and transmission.

[0344] 3) Based on different RNTI types of scrambling, the DCI scrambled by different RNTIs is associated with the waveform. If waveform switching is configured, the enhanced waveform is used for DCI scrambled with a specific RNTI (such as P-RNTI, SI-RNTI, RA-RNTI, TC-RNTI, CS-RNTI, MCS-RNTI or PEI-RNTI, etc.). If waveform switching is not configured, the traditional waveform is used for DCI scrambled with a specific RNTI.

[0345] For PUSCH, please refer to PDSCH; it will not be elaborated upon here.

[0346] Method 2: Switching the waveform indicated by the non-scheduled downlink DCI, such as uplink DCI or group DCI indication, can add a bit field (e.g., 1 bit) or reuse an existing bit field, where the reuse of an existing bit field can refer to at least one of the above.

[0347] Method 3: Waveform switching is indicated by higher-level signaling.

[0348] The waveform switching indication mentioned above can be interpreted as: {Transmission precoding enabled, transmission precoding disabled}. Transmission precoding enabled means that the signal is processed by IFFT after precoding, that is, assuming that DFT-s-OFDM waveform is used (DFT-s-OFDM is only used as an example here, but other precoding modules or filtering processes can also be used). Transmission precoding disabled means that the signal is processed by IFFT only, that is, OFDM waveform is used.

[0349] [Switch enable conditions]

[0350] Whether the waveform switching indication signaling (i.e., the fifth indication signaling) is enabled can be determined by the following signaling (which can reuse or partially reuse the PRT function indication bit in Embodiment 2) or conditions:

[0351] Higher-level signaling configuration is used to indicate whether all relevant waveform indicator bit fields are enabled;

[0352] Multiple higher-layer signaling configurations are used to indicate whether the waveform indication bit field in the relevant DCI or relevant higher-layer signaling is enabled (at this time, the higher-layer signaling corresponds one-to-one with each DCI format).

[0353] DCI signaling, each DCI format sets a waveform switching enable indicator to indicate whether the waveform indicator bit field in the DCI is enabled;

[0354] When the MCS is lower than a certain threshold or the modulation order is lower than a certain order, that is, when the configured MCS is lower than the MCS threshold or its modulation order is lower than the order threshold, the network side enables waveform switching indication signaling and configures an appropriate waveform.

[0355] Coverage performance, as detailed below:

[0356] If the energy / SINR of the uplink reference signal measured by the network side is lower than a certain threshold, that is, when the measured channel quality (energy or SINR) is lower than the RSRP or SINR threshold (at this time, UE coverage is limited and higher transmit power may be required), the network side enables / configures waveform switching signaling. This indication may be for uplink signals only, downlink signals only, or both.

[0357] If the energy / SINR of the downlink reference signal measured by the terminal is lower than a certain threshold, that is, when the measured channel quality (energy or SINR) is lower than the RSRP or SINR threshold (at this time, UE coverage is limited and may require higher transmit power), the terminal requests waveform switching.

[0358] The request indication can be carried by PUCCH, PUSCH, or a specific DMRS port, etc. The network side decides whether to switch waveforms based on the request. If switching is required, a corresponding switching indication is configured, and the terminal transmits uplink signals or receives downlink signals according to the configured waveform; if switching is not required, no corresponding signaling is configured, and the terminal transmits uplink signals or receives downlink signals according to the traditional waveform.

[0359] The threshold or limit can be configured by higher-level signaling, such as RRC, MAC CE, SIB, MIB, etc.

[0360] For the configuration of the introduced enable indicators / conditions, the ranges are {enabled, disabled}:

[0361] "Enabled" indicates that the waveform switching indicator field is present, and the receiving side follows the waveform switching field.

[0362] "Disabled" indicates that the waveform switching indicator field is not present, and that the receiver follows traditional parameters when using the DCI format for scheduling.

[0363]

DMRS scrambling

[0364] Whether or not transmission precoding is performed (i.e., DFT-s-OFDM waveform when precoding is used, and CP-OFDM waveform when precoding is not used) may affect the configuration of other parameters in the DCI, such as DMRS sequence initialization, in order to ensure DCI size alignment.

[0365] For DMRS sequence initialization, at least one of the following rules may be followed:

[0366] Rule 1: DMRS sequence initialization indication. When transmission precoding is enabled (i.e., waveform is switched to DFT-S-OFDM), this indication occupies 0 bits; when transmission precoding is disabled (i.e., waveform is CP-OFDM), this indication occupies 1 bit.

[0367] Rule 2: DMRS Sequence Initialization Indicator. When the higher-layer parameter dmrs-SequenceInitializationDCI-1-2 is not configured or transmission precoding is enabled (i.e., waveform switched to DFT-S-OFDM), this indicator occupies 0 bits; when the higher-layer parameter dmrs-SequenceInitializationDCI-1-2 is configured or transmission precoding is disabled (i.e., waveform switched to CP-OFDM), this indicator occupies 1 bit.

[0368] Example 3

[0369] [Combined PRT and waveform switching]

[0370] This embodiment describes the signaling related to the joint indication configuration. Based on the content of Embodiments 1 and 2, when waveform switching is combined with reserved subcarrier (i.e., PRT) technology, the PAPR of the system can be further reduced. This method is applicable to uplink, downlink, data signals, and control channels.

[0371] When only PRT-related signaling is configured, the sending end only uses PRT, and the receiving end can exclude or decode it according to the configuration.

[0372] When only waveform switching signaling is configured, the transmitting end only uses the corresponding waveform to transmit, and the receiving end performs the corresponding demodulation operation according to the configuration.

[0373] With PRT-related signaling and waveform switching signaling configured, the transmitting end modulates the signal using the corresponding waveform and transmits it after carrying a signal with reduced PAPR using PRT.

[0374] If neither is configured, the transmission will be performed according to the traditional protocol process by default.

[0375] This application also provides a data transmission device. Figure 8 is a schematic diagram of a data transmission device according to an embodiment. As shown in Figure 8, the data transmission device includes:

[0376] Module 310 is configured to determine resource configuration information.

[0377] Transmission module 320 is configured to send and / or receive data according to the resource configuration information;

[0378] The resource configuration information includes at least one of the following: first-class resource configuration information, scheduled frequency band resources, and waveform switching configuration information.

[0379] In one embodiment, the first type of resource configuration information includes at least one of the following:

[0380] Location of Category I resources; Map of Category I resources; Reference points for Category I resources; Scale of Category I resources; Functions of Category I resources; Activation conditions for Category I resources; Conflict resolution for Category I resources.

[0381] In one embodiment, the first type of resource configuration information includes a first type of resource reference point;

[0382] The first type of resource reference point includes at least one of the following:

[0383] The smallest numbered resource unit of the scheduled frequency band resources;

[0384] The largest numbered resource unit of the scheduled frequency band resource;

[0385] Related to the location of the synchronization signal and / or the common reference point of the resource block grid;

[0386] In one embodiment, the reference point may be a fixed offset relative to the position of the synchronization signal. The offset includes at least one of the following: a specific symbol position of the synchronization signal in the time domain, or a fixed frequency offset relative to the synchronization signal in the frequency domain.

[0387] In one embodiment, the first type of resource configuration information includes the location of the first type of resource;

[0388] The first type of resource location includes at least one of the following types of first type resource locations:

[0389] The location of the first type of resource within the second type of resource zone; the location of the first type of resource within the second type of resource zone; the location of the first type of resource within and / or within the second type of resource zone.

[0390] The second type of resource includes: scheduled frequency band resources.

[0391] In one embodiment, the resource includes at least one of the following:

[0392] Sideband resources include at least one of the following: single sideband resources, double sideband resources;

[0393] The bilateral band resources satisfy one of the following characteristics: bilateral resources are equal; bilateral resources are unequal;

[0394] The second type of resource includes: scheduled frequency band resources.

[0395] In one embodiment, the resource configuration information includes the location of a first type of resource; the determination module 310 is configured to:

[0396] Receive the first instruction signaling; determine the location of the first type of resource based on the first instruction signaling;

[0397] The first instruction signaling includes at least one of the following: higher-level signaling; DCI signaling; and a first condition.

[0398] In one embodiment, the first condition includes: the waveform type used.

[0399] In one embodiment, the first type of resource configuration information includes at least one first type of resource pattern, each first type of resource pattern includes at least one first type of resource set, and each first type of resource set contains one resource unit index or at least two resource unit indices at different locations; wherein, when the first type of resource pattern contains only one first type of resource set, the first type of resource pattern is the first type of resource set.

[0400] In one embodiment, the first type of resource pattern is associated with at least one of the following: scheduled frequency band resources, modulation and coding scheme, modulation order, second indication signaling, and third indication signaling;

[0401] The first type of resource pattern is determined according to at least one of the following:

[0402] Different sizes of scheduling frequency band resources correspond to different length ratios of the first type of resource patterns;

[0403] The same size of scheduling frequency band resources corresponds to at least two types of first-class resource patterns with different length ratios;

[0404] At least two scheduling frequency band resources of different sizes correspond to the same length ratio of the first type of resource pattern;

[0405] A modulation coding scheme and / or modulation order less than a first threshold corresponds to a first type of resource pattern with a length ratio;

[0406] A modulation coding scheme and / or modulation order less than the second threshold corresponds to a first type of resource pattern with a different length ratio;

[0407] Wherein, the length ratio is the ratio of the number of resource units in the first type of resource set in the first type of resource pattern to the number of resource units contained in the scheduled frequency band.

[0408] In one embodiment, the determining module 310 is configured as follows:

[0409] Receive a second indication signaling, the second indication signaling being used to indicate a first type of resource set or an index of the first type of resource set;

[0410] The first type of resource set used in this transmission is determined according to the second instruction signaling;

[0411] The resource unit index to be used in this transmission is determined based on the identified first type of resource set;

[0412] The second indication signaling includes at least one of the following: higher-layer signaling; downlink control information (DCI) signaling.

[0413] In one embodiment, the first type of resource set includes at least one of the following features:

[0414] The lengths of different sets of first-class resources belonging to different first-class resource patterns may be equal or unequal;

[0415] The lengths of resource sets belonging to the same type of resource pattern are equal.

[0416] The resource unit indexes in the first type of resource set are either periodic or aperiodic;

[0417] The resource unit index in the periodic first type of resource set includes one of the following:

[0418] It contains at least two elements: the first element is the starting index of the first type of resource unit, and the second element is the interval of the first type of resource unit index.

[0419] It contains at least 3 elements, the first element is the index of the first type of resource unit, and the intervals between any two elements are equal.

[0420] In one embodiment, the resources occupied by the first type of resources include at least one of the following: sideband resources of the second type of resources; extended sideband resources other than the second type of resources.

[0421] In one embodiment, the device further includes:

[0422] The mapping processing module is configured to perform mapping and / or demapping on the first type of signal according to at least one of the following rules based on a determined resource unit index;

[0423] The smallest numbered resource unit of the scheduled resource is used as the initial resource unit, and execution is carried out sequentially in the frequency domain and then in the time domain according to the determined resource unit index.

[0424] Using the first type of resource reference point as the initial resource unit, the process is executed sequentially in the frequency domain and then in the time domain according to the determined resource unit index.

[0425] In the case that the index of any resource unit in any of the first type of resource sets is negative -A, the mapping and / or demapping is performed on the Ath resource unit preceding the smallest numbered resource unit of the scheduled frequency band resource;

[0426] If any resource unit index C in any of the first type of resource sets is greater than the maximum number of the scheduled frequency band resource, then the Cth resource unit located outside the scheduled frequency band resource is mapped and / or demapped.

[0427] The resource unit indices of the first type of resource set are consistent across different time domain symbols;

[0428] The rules are consistent across different time domain symbols.

[0429] In one embodiment, the first type of resource configuration information includes at least one first type of resource pattern, and each first type of resource pattern includes at least one first type of resource set; each first type of resource set contains one resource unit index or at least two resource unit indices at different locations; when the first type of resource pattern contains only one first type of resource set, the first type of resource pattern is the first type of resource set.

[0430] In one embodiment, the first type of resource configuration information includes each first type of resource pattern;

[0431] The first type of resource pattern is associated with at least one of the following: scheduled frequency band resources, modulation and coding scheme, modulation order, second indication signaling, and third indication signaling;

[0432] The first type of resource pattern is determined according to at least one of the following:

[0433] Different sizes of scheduling frequency band resources correspond to different length ratios of the first type of resource patterns;

[0434] The same size of scheduling frequency band resources corresponds to at least two types of first-class resource patterns with different length ratios;

[0435] At least two scheduling frequency band resources of different sizes correspond to the same length ratio of the first type of resource pattern;

[0436] A modulation coding scheme and / or modulation order less than a first threshold corresponds to a first type of resource pattern with a length ratio;

[0437] A modulation coding scheme and / or modulation order less than the second threshold corresponds to a first type of resource pattern with a different length ratio;

[0438] Wherein, the length ratio is the ratio of the number of resource units in the first type of resource set in the first type of resource pattern to the number of resource units contained in the scheduled frequency band.

[0439] In one embodiment, the proportion of the first type of resources is associated with at least one of the following: the scheduled frequency band, the modulation and coding scheme, the modulation order, the second indication signaling, and the third indication signaling; wherein the proportion of the first type of resources is determined according to at least one of the following:

[0440] Different sizes of scheduling frequency band resources correspond to different proportions of the first type of resources, and each scheduling frequency band corresponds to a certain proportion of the first type of resources;

[0441] The same size of scheduling frequency band resources corresponds to at least two types of first-class resource ratios, and each scheduling frequency band corresponds to at least two different types of first-class resource ratios;

[0442] At least two different sizes of scheduling frequency band resources correspond to the same proportion of the first type of resource;

[0443] A modulation and coding scheme and / or a first modulation order that is less than a first threshold corresponds to a first type of resource proportion;

[0444] A modulation and coding scheme and / or a second modulation order that is less than the second threshold corresponds to another type of first-class resource ratio;

[0445] The first type of resource ratio is the ratio of the number of sub-resource units occupied by the first type of resource to the total number of resource units included in the scheduled frequency band resources.

[0446] In one embodiment, the determining module 310 is configured as follows:

[0447] When each scheduling frequency band corresponds to at least two Class I resource ratios, the Class I resource ratio is determined according to the third instruction signaling.

[0448] In one embodiment, the resource configuration information includes the proportion of a first type of resource;

[0449] Module 310 is defined as follows:

[0450] Receive at least one third instruction signaling;

[0451] At least one type I resource ratio or index of type I resource ratio is determined according to the third instruction signaling;

[0452] The third instruction signaling includes at least one of the following: higher-level signaling; DCI signaling.

[0453] In one embodiment, the number of resource units occupied by the first type of resource is the determined proportion of the first type of resource multiplied by the total number of resource units of the scheduled frequency band resources.

[0454] In one embodiment, the proportion of the first type of resource is associated with the first type of resource pattern;

[0455] The first type of resource pattern is associated with one or more first type resource sets.

[0456] In one embodiment, the first type of resource ratio includes at least two first type of resource ratios, namely the first type of resource ratio at the smallest numbered resource unit end and the first type of resource ratio at the largest numbered resource unit end of the scheduled frequency band resources.

[0457] In one embodiment, the apparatus further includes: a mapping processing module configured to perform mapping and / or demapping on the first type of signal according to at least one of the following rules based on the number of resource units corresponding to the determined first type of resource ratio;

[0458] The process begins with the smallest numbered resource unit of the scheduled resource, and is executed sequentially in the frequency domain and then the time domain.

[0459] The resource unit with the smallest number of the scheduled resource is used as the end resource unit, and the process is executed sequentially in the frequency domain and then in the time domain.

[0460] The process begins with the resource unit with the largest number of the scheduled resource as the starting resource unit, and executes sequentially in the frequency domain and then the time domain.

[0461] The resource unit with the largest number of the scheduled resource is used as the end resource unit, and the process is executed sequentially in the frequency domain and then in the time domain.

[0462] The resource unit, with the first resource reference point as the starting point, is executed sequentially in the frequency domain and then in the time domain.

[0463] In one embodiment, the first type of resource configuration information includes the first type of resource function used by the first type of resource to carry the first type of signal; the determining module 310 is configured to:

[0464] Receive the fourth instruction signaling; determine the first type of resource function based on the fourth instruction signaling;

[0465] The first type of signal includes at least one of the following: all-zero signal; data signal; peak-to-average power ratio signal; reference signal; sensing signal; power adjustment signal;

[0466] The fourth instruction signaling includes at least one of the following: higher-level signaling; DCI signaling.

[0467] In one embodiment, the fourth indication signaling includes a function indication bit for a first type of signal carried by a first type of resource, wherein the function of the first type of resource includes at least one of the following;

[0468] When the function indicator bit is set to the first indication, the first type of resource is used to carry an all-zero signal;

[0469] When the function indicator bit is the second indicator, the first type of resource is used to carry data signals;

[0470] When the function indicator bit is the third indicator, the first type of resource is used to carry the sensing signal;

[0471] When the function indicator bit is the fourth indicator, the first type of resource is used to carry the reference signal;

[0472] When the function indicator bit is the fifth indicator, the first type of resource is used to carry the power adjustment signal;

[0473] When the function indicator bit is the sixth indicator or is absent, the first type of resource is used to carry the peak-to-average power ratio signal.

[0474] In one embodiment, the fourth indication signaling includes a first signaling and a second signaling, wherein the first signaling is used to indicate enabling or disabling a first type of resource function, and the second signaling is used to indicate the function of the first type of resource for carrying a first type of signal;

[0475] The fourth instruction signaling satisfies at least one of the following:

[0476] When the first type of resource function is enabled and the first type of resource function indicator bit is set to the first indication, the first type of resource is used to carry data signals;

[0477] When the first type of resource function is enabled and the first type of resource function indicator bit is the second indicator, the first type of resource is used to carry the sensing signal;

[0478] When the first type of resource function is disabled, the first type of resource is used to carry the peak-to-average power ratio signal.

[0479] In one embodiment, the first type of resource configuration information includes first type of resource activation conditions; the device further includes: an activation module configured to determine whether to enable the first type of resource configuration based on at least one of the following conditions:

[0480] The higher-level signaling indicates whether the configuration related to Category 1 resources should be enabled;

[0481] DCI signaling indicates whether the configuration related to Category 1 resources is enabled;

[0482] Is the modulation and coding scheme (MCS) higher than a set threshold?

[0483] Is the modulation order higher than the set order?

[0484] The allocated frequency band exceeds the set threshold;

[0485] Coverage performance,

[0486] The coverage performance includes at least one of the following:

[0487] Whether the energy and / or SINR of the uplink reference signal measured by the network node are lower than the corresponding threshold.

[0488] Whether the energy and / or SINR of the downlink reference signal measured by the terminal node are lower than the corresponding threshold.

[0489] The request indication from the terminal node.

[0490] In one embodiment, the first type of resource configuration information includes a first type of resource conflict resolution;

[0491] The first type of resource conflict resolution includes at least one of the following rules:

[0492] When the first type of resource is configured to carry the first type of signal which is not a data signal, the complex modulation symbols are mapped and / or demapped on the scheduled resources in accordance with the rule of first frequency domain and then time domain, and the resource units corresponding to the first type of resource are skipped.

[0493] When the first type of resource is configured to carry a first type of signal that is not a data signal, when calculating the resource elements available for the data bit sequence on the scheduled resources, the number of resource units used for the bit sequence is the number of resource units corresponding to the first type of resource removed.

[0494] When the first type of resource is configured to carry a first type of signal that is not a data signal, when calculating the resource elements available for data bit sequences on the scheduled resources, the resource elements used for that bit sequence must exclude the resource elements corresponding to the first type of resource.

[0495] When the first type of resource is configured to carry the first type of signal, the demodulation reference signal is mapped and / or demapped on the scheduled resources in accordance with the rule of first frequency domain and then time domain, and the first type of resource does not overlap with the resource used to carry the demodulation reference signal.

[0496] In one embodiment, the determining module 310 is configured as follows:

[0497] Receive the fifth indication signaling and determine whether to perform waveform switching based on the fifth indication signaling;

[0498] The fifth instruction signaling includes at least one of the following: downlink control information (DCI) for scheduled downlink, DCI for unscheduled downlink, and higher-layer signaling.

[0499] In one embodiment, when the fifth indication signaling is a DCI for scheduling downlink, the waveform switching indication information includes at least one of the following:

[0500] The new bit field indication is provided in the downlink control information;

[0501] The existing bit field indication is used in the downlink control information;

[0502] Adjust the usage indication using the existing fields in the downlink control information;

[0503] According to the conditions indicated by the scheduling information, the scheduling information includes at least one of the following: number of RBs, MCS index, DMRS CDM, number of layers, and channel type.

[0504] In one embodiment, when the channel type is PUCCH, the conditions for the scheduling information include at least one of the following:

[0505] The configured PUCCH format, whether PUCCH repeat is configured, and whether the configured PUCCH repeat has reached the threshold.

[0506] When the channel type is PDSCH or PUSCH, the conditions of the scheduling information include at least one of the following: resource configuration type, whether PDSCH repetition is configured, whether the configured PDSCH repetition reaches the threshold, and scrambling RNTI type.

[0507] When the channel type is PDCCH, the conditions of the scheduling information include at least one of the following: whether PDCCH repetition is configured, whether the configured PDCCH repetition reaches a threshold, and the scrambling RNTI type.

[0508] In one embodiment, when the fifth indication signaling is a non-scheduled downlink DCI, the waveform switching indication information includes at least one of the following:

[0509] The new bit field indication is provided in the downlink control information;

[0510] The existing bit field indication is provided in the downlink control information.

[0511] In one embodiment, the device further includes an enable module configured to determine whether a fifth indication signaling is enabled based on at least one of the following:

[0512] At least one higher-level signaling, each higher-level signaling being used to indicate whether at least one waveform switching bit field is enabled;

[0513] Waveform switching enable in DCI signaling;

[0514] Is the modulation and coding strategy below a set threshold?

[0515] Is the modulation order lower than the set order?

[0516] Coverage performance;

[0517] The coverage performance includes at least one of the following:

[0518] Whether the energy and / or SINR of the uplink reference signal measured by the network node are lower than the corresponding threshold.

[0519] Whether the energy and / or SINR of the downlink reference signal measured by the terminal node are lower than the corresponding threshold.

[0520] The request indication from the terminal node.

[0521] In one embodiment, when the resource configuration information includes waveform switching configuration information, the resource configuration information further includes a DMRS sequence initialization indication;

[0522] The DMRS sequence initialization indication satisfies at least one of the following:

[0523] When transport precoding is enabled, the DMRS sequence initialization indication occupies 0 bits; when transport precoding is disabled, the DMRS sequence initialization indication occupies 1 bit.

[0524] Without configuring higher-level parameters, the DMRS sequence initialization indicator occupies 0 bits;

[0525] When higher-level parameters are configured, the DMRS sequence initialization indication occupies 1 bit.

[0526] The data transmission device proposed in this embodiment belongs to the same inventive concept as the data transmission method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the data transmission method.

[0527] This application also provides a data transmission device. Figure 9 is a schematic diagram of the structure of a data transmission device according to an embodiment. As shown in Figure 9, the data transmission device includes:

[0528] The sending module 410 is configured to send resource configuration information;

[0529] Transmission module 420 is configured to receive and / or send data according to the resource configuration information;

[0530] The resource configuration information includes at least one of the following: first type of resource configuration information, scheduled frequency band resources, waveform switching configuration information, and first type of resource reference point.

[0531] The data transmission device proposed in this embodiment belongs to the same inventive concept as the data transmission method proposed in the above embodiments. Technical details not described in detail in this embodiment can be found in any of the above embodiments. Furthermore, this embodiment has the same beneficial effects as performing the data transmission method.

[0532] This application also provides a first communication node. Figure 10 is a schematic diagram of the hardware structure of a first communication node provided in an embodiment. As shown in Figure 10, the first communication node provided in this application includes a processor 510 and a memory 520. The processor 510 in the first communication node can be one or more, and Figure 10 shows one processor 510 as an example. The 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 as described in the embodiment of this application.

[0533] The first communication node also includes: a communication device 530, an input device 540, and an output device 550.

[0534] The processor 510, memory 520, communication device 530, input device 540 and output device 550 in the first communication node can be connected by a bus or other means. Figure 10 shows an example of connection via a bus.

[0535] Input device 540 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the first communication node. Output device 550 may include display devices such as a display screen.

[0536] The communication device 530 may include a receiver and a transmitter. The communication device 530 is configured to perform information transmission and reception communication under the control of the processor 510.

[0537] The memory 520, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the data transmission method described in the embodiments of this application (e.g., the determining 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, wherein the program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created based on the use of the first communication node, etc. Furthermore, the memory 520 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include memory remotely located relative to the processor 510, and these remote memories can be connected to the first communication node via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0538] Figure 11 is a schematic diagram of the hardware structure of a second communication node provided in an embodiment. As shown in Figure 11, the second communication node provided in this application includes a processor 610 and a memory 620. The processor 610 in the second communication node can be one or more, and one processor 610 is used as an example in Figure 11. The memory 620 is configured to store one or more programs. The one or more programs are executed by the one or more processors 610, so that the one or more processors 610 implement the data transmission method as described in the embodiment of this application.

[0539] The second communication node also includes: a communication device 630, an input device 640, and an output device 650.

[0540] The processor 610, memory 620, communication device 630, input device 640 and output device 650 in the second communication node can be connected by a bus or other means. Figure 11 shows an example of connection via a bus.

[0541] Input device 640 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the second communication node. Output device 650 may include display devices such as a display screen.

[0542] The communication device 630 may include a receiver and a transmitter. The communication device 630 is configured to perform information transmission and reception communication under the control of the processor 610.

[0543] The memory 620, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as program instructions / modules corresponding to the data transmission method described in the embodiments of this application (e.g., the sending module 410 and the transmission module 420 in the data transmission device). The memory 620 may include a program storage area and a data storage area, wherein the program storage area may store the operating system and at least one application program required for a function; the data storage area may store data created based on the use of the second communication node, etc. Furthermore, the memory 620 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 620 may further include memory remotely located relative to the processor 610, and these remote memories can be connected to the second communication node via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0544] This application also provides a storage medium storing a computer program, which, when executed by a processor, implements any of the data transmission methods described in this application. The method includes: determining resource configuration information; sending and / or receiving data according to the resource configuration information; the resource configuration information includes at least one of the following: first type of resource configuration information, scheduled frequency band resources, waveform switching configuration information, and scheduled frequency band resources. Alternatively, the method includes: sending resource configuration information; receiving and / or sending data according to the resource configuration information; the resource configuration information includes at least one of the following: first type of resource configuration information, scheduled frequency band resources, waveform switching configuration information, and a first type of resource reference point.

[0545] This application also provides a computer program storage product, including a computer program / instructions, which, when executed by a processor, implement any of the data transmission methods described in this application. The method includes: determining resource configuration information; sending and / or receiving data according to the resource configuration information; the resource configuration information includes at least one of the following: first type of resource configuration information, scheduled frequency band resources, waveform switching configuration information, and scheduled frequency band resources. Alternatively, the method includes: sending resource configuration information; receiving and / or sending data according to the resource configuration information; the resource configuration information includes at least one of the following: first type of resource configuration information, scheduled frequency band resources, and waveform switching configuration information.

[0546] The computer storage medium in this application embodiment can be 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. For example, a computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination thereof. The computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0547] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0548] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0549] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as "C" or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0550] This application also provides 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.

[0551] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application.

[0552] Those skilled in the art will understand that the term user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing portable web browsers, or vehicle-mounted mobile stations.

[0553] Generally, the various embodiments of this application can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. For example, some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although this application is not limited thereto.

[0554] Embodiments of this application can be implemented by executing computer program instructions through the data processor of a mobile device, for example, in a processor entity, or through hardware, or through a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages.

[0555] Any block diagram of logical flow in the accompanying drawings of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored in memory. The memory may be of any type suitable to 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 storage devices and systems (Digital Video Disc (DVD) or Compact Disk (CD), etc.). Computer-readable media may include non-transitory storage media. The data processor may be of any type suitable to the local technical environment, such as, but not limited to, general-purpose computers, special-purpose computers, microprocessors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and processors based on multi-core processor architectures.

Claims

1. A data transmission method applied to a first communication node, comprising: determining resource configuration information; transmitting and / or receiving data according to the resource configuration information; wherein the resource configuration information comprises at least one of the following: first-type resource configuration information, scheduled frequency band resource, and waveform switching configuration information; wherein the first-type resource configuration information comprises at least one of the following: first-type resource reference point, first-type resource location, first-type resource pattern, first-type resource proportion, first-type resource function, first-type resource enabling condition, and first-type resource conflict resolution; wherein the first-type resource configuration information comprises a first-type resource reference point; wherein the first-type resource reference point comprises at least one of the following: minimum numbered resource unit of the scheduled frequency band resource; maximum numbered resource unit of the scheduled frequency band resource; and being associated with a common reference point of a synchronization signal location and / or a resource block grid; wherein the first-type resource configuration information comprises a first-type resource location; wherein the first-type resource location comprises at least one of the following types of first-type resource location: first-type resource location within a second-type resource band, first-type resource location at a band edge of the second-type resource, and first-type resource location within and / or at a band edge of the second-type resource; wherein the second-type resource comprises the scheduled frequency band resource; wherein the resource configuration information comprises the first-type resource location; wherein the determining the resource configuration information comprises: receiving first indication signaling; and determining the first-type resource location according to the first indication signaling; wherein the first indication signaling comprises at least one of the following: higher layer signaling, downlink control information (DCI) signaling, and first condition; wherein the band edge resource comprises at least one of the following: single-sideband resource and double-sideband resource; wherein the double-sideband resource satisfies at least one of the following characteristics: equal double-sideband resources; and unequal double-sideband resources; wherein the first-type resource configuration information comprises at least one first-type resource pattern, each first-type resource pattern comprising at least one first-type resource set, each first-type resource set comprising one resource unit index or resource unit indexes at different locations; wherein, in a case where the first-type resource pattern comprises only one first-type resource set, the first-type resource pattern is the first-type resource set; wherein the first-type resource pattern is associated with at least one of the following: scheduled frequency band resource, modulation and coding scheme, modulation order, second indication signaling, and third indication signaling; wherein the first-type resource pattern is determined according to at least one of the following: different sizes of scheduled frequency band resource correspond to different lengths of first-type resource pattern; same size of scheduled frequency band resource corresponds to at least two lengths of first-type resource pattern; at least two different sizes of scheduled frequency band resource correspond to same length of first-type resource pattern; modulation and coding scheme and / or modulation order less than a first threshold value correspond to a first length of first-type resource pattern; and modulation and coding scheme and / or modulation order less than a second threshold value correspond to a second length of first-type resource pattern. ​ ​ ​ 2. The method of claim 1, wherein, ​ ​ 3. The method of claim 1, wherein, ​ ​ ​ ​ ​ 4. The method of claim 1, wherein, ​ ​ ​ ​ 5. The method of claim 4, wherein, ​ ​ ​ ​ ​ 6. The method of claim 4, wherein, ​ ​ 7. The method of claim 1, wherein, ​ ​ 8. The method of claim 7, wherein, ​ ​ ​ ​ ​ ​ ​ The length ratio is a ratio of a number of resource units in the first-type resource set in the first-type resource pattern to a number of resource units contained in the scheduled frequency band.

9. The method of claim 7, wherein, The determining the resource configuration information comprises: determining the first-type resource set; The determining the first-type resource set comprises: receiving second indication signaling, the second indication signaling being used for indicating the first-type resource set or an index of the first-type resource set; determining the first-type resource set used for the current transmission according to the second indication signaling; determining the resource unit index used for the current transmission according to the determined first-type resource set; The second indication signaling comprises at least one of the following: high-layer signaling; DCI signaling.

10. The method of claim 7, wherein, The first-type resource set comprises at least one of the following features: lengths of the first-type resource sets belonging to different first-type resource patterns are equal or unequal; lengths of the first-type resource sets belonging to the same first-type resource pattern are equal; resource unit indexes in the first-type resource set have periodicity or non-periodicity; the resource unit indexes in the first-type resource set with periodicity comprise at least one of the following: containing at least two elements, a first element being a resource unit index of a starting first-type resource, and a second element being a resource unit index interval of the first-type resource; containing at least three elements, a third element being a resource unit index of the first-type resource, and intervals between adjacent two third elements being equal.

11. The method of claim 9, further comprising: performing mapping and / or demapping on the first-type signal according to the determined resource unit index according to at least one of the following rules: taking a smallest-numbered resource unit of the scheduled resource as an initial resource unit, and performing sequentially in the frequency domain and then in the time domain according to the determined resource unit index; taking a first resource reference point as an initial resource unit, and performing sequentially in the frequency domain and then in the time domain according to the determined resource unit index; in a case where any of the resource unit indexes in any of the first-type resource sets is a negative number-A, performing mapping and / or demapping on an A-th resource unit before the smallest-numbered resource unit of the scheduled frequency band resource; in a case where any of the resource unit indexes C in any of the first-type resource sets is greater than a largest-numbered resource unit of the scheduled frequency band resource, performing mapping and / or demapping on a C-th resource unit outside the scheduled frequency band resource; resource unit indexes contained in the first-type resource sets on different time domain symbols are consistent; rules performed on different time domain symbols are consistent.

12. The method of claim 1, wherein, The first-type resource configuration information comprises at least one first-type resource ratio, and the first-type resource ratio is associated with at least one of the following: a scheduled frequency band, a modulation and coding scheme, a modulation order, and third indication signaling; The first-type resource ratio is determined according to at least one of the following: different sizes of scheduled frequency band resources correspond to different first-type resource ratios, and each scheduled frequency band corresponds to one first-type resource ratio; the same size of scheduled frequency band resources corresponds to at least two first-type resource ratios, and each scheduled frequency band corresponds to at least two different first-type resource ratios; at least two different sizes of scheduled frequency band resources correspond to the same first-type resource ratio. The modulation and coding scheme less than the first threshold and / or the first modulation order correspond to the first type of resource proportion of the first type of resource; The modulation and coding scheme less than the second threshold and / or the second modulation order correspond to the second type of resource proportion of the first type of resource; The first type of resource proportion is a ratio of a number of resource units occupied by the first type of resource to a number of resource units included in the scheduled frequency band resource.

13. The method of claim 1, wherein, The first type of resource configuration information includes at least one first type of resource proportion; The determining of the resource configuration information includes determining the first type of resource proportion; The determining of the first type of resource proportion includes: In a case where each scheduling frequency band corresponds to at least two first type of resource proportions, the first type of resource proportion corresponding to each scheduling frequency band is determined according to the third indication signaling.

14. The method of claim 1, wherein, The resource configuration information includes at least one first type of resource proportion. The determining of the resource configuration information includes: Receiving at least one third indication signaling; Determining at least one first type of resource proportion or an index of the first type of resource proportion according to the third indication signaling; The third indication signaling includes at least one of the following: high layer signaling; DCI signaling.

15. The method of claim 13 or 14, wherein, The number of resource units occupied by the first type of resource is the determined first type of resource proportion multiplied by the number of resource units of the scheduling frequency band resource.

16. The method of claim 1, wherein, The resource configuration information includes at least one first type of resource proportion, and the first type of resource proportion is associated with a first type of resource pattern. The first type of resource pattern is associated with one or more first type of resource sets.

17. The method of claim 1, wherein, The resource configuration information includes at least two first type of resource proportions, and two first type of resource proportions in the at least two first type of resource proportions are respectively a first type of resource proportion at a minimum number resource unit end of the scheduling frequency band resource and a first type of resource proportion at a maximum number resource unit end.

18. The method of claim 15, further comprising: According to the number of resource units corresponding to the determined first type of resource proportion, performing mapping and / or demapping on the first type of signal according to at least one of the following rules: Taking the minimum number resource unit of the scheduled resource as the starting resource unit of the determined resource unit, performing sequentially in the frequency domain and then in the time domain; Taking the minimum number resource unit of the scheduled resource as the ending resource unit of the determined resource unit, performing sequentially in the frequency domain and then in the time domain; Taking the maximum number resource unit of the scheduled resource as the starting resource unit of the determined resource unit, performing sequentially in the frequency domain and then in the time domain; Taking the maximum number resource unit of the scheduled resource as the ending resource unit of the determined resource unit, performing sequentially in the frequency domain and then in the time domain; Taking the first resource reference point as the starting resource unit of the determined resource unit, performing sequentially in the frequency domain and then in the time domain.

19. The method of claim 1, wherein, The first type of resource configuration information includes a first type of resource function of the first type of signal carried by the first type of resource; The determining of the resource configuration information includes: Receiving fourth indication signaling; Determining the first type of resource function according to the fourth indication signaling; The first type of signal includes at least one of the following: all-zero signal; data signal; peak-to-average power ratio reduction signal; reference signal; sensing signal; power adjustment signal; The fourth indication signaling includes at least one of the following: high layer signaling; DCI signaling.

20. The method of claim 19, wherein, The fourth indication signaling includes a function indication bit of a first type of signal carried by a first type of resource, and the function of the first type of resource includes at least one of the following: In a case where the function indication bit is a first indication, the first type of resource is used to carry an all-zero signal; In a case where the function indication bit is a second indication, the first type of resource is used to carry a data signal; In a case where the function indication bit is a third indication, the first type of resource is used to carry a sensing signal; In a case where the function indication bit is a fourth indication, the first type of resource is used to carry a reference signal; In a case where the function indication bit is a fifth indication, the first type of resource is used to carry a power adjustment signal; In a case where the function indication bit is a sixth indication or is not present, the first type of resource is used to carry a peak-to-average power reduction signal.

21. The method of claim 19, wherein, The fourth indication signaling includes first signaling and second signaling, the first signaling is used to indicate whether to enable or disable a first type of resource function, and the second signaling is used to indicate a function of a first type of signal carried by a first type of resource; The fourth indication signaling satisfies at least one of the following: In a case where the first type of resource function is enabled and the first type of resource function indication bit is a first indication, the first type of resource is used to carry a data signal; In a case where the first type of resource function is enabled and the first type of resource function indication bit is a second indication, the first type of resource is used to carry a sensing signal; In a case where the first type of resource function is disabled, the first type of resource is used to carry a peak-to-average power reduction signal.

22. The method of claim 1, wherein, The first type of resource configuration information includes a first type of resource enabling condition; The method further includes determining whether to enable the first type of resource configuration according to at least one of the following conditions: Whether high-layer signaling indicates whether the first type of resource related configuration is enabled; Whether DCI signaling indicates whether the first type of resource related configuration is enabled; Whether a modulation and coding scheme (MCS) is higher than a set threshold; Whether a modulation order is higher than a set order; Whether an allocated frequency band exceeds a set threshold; Coverage performance; The coverage performance includes at least one of the following: Whether an uplink reference signal energy and / or a signal-to-interference-plus-noise ratio (SINR) measured by a network node is lower than a corresponding threshold, Whether a downlink reference signal energy and / or a SINR measured by a terminal node is lower than a corresponding threshold, A request indication of the terminal node.

23. The method of claim 1, wherein, The first type of resource configuration information includes a first type of resource conflict resolution; The first type of resource conflict resolution includes at least one of the following rules: In a case where a configured first type of resource is used to carry a first type of signal of a non-data signal, complex modulation symbols are sequentially mapped and / or demapped on scheduled resources in the order of frequency domain and then time domain, and resource elements corresponding to the first type of resource are skipped; In a case where a configured first type of resource is used to carry a first type of signal of a non-data signal, when calculating resource elements available for a data bit sequence on scheduled resources, the number of resource elements for the bit sequence is the number of resource elements excluding the resource elements corresponding to the first type of resource. In a case that the first type of resource configured is used to carry the first type of signal, in calculating the resource elements available for the data bit sequence on the scheduled resource, the resource elements for the bit sequence need to exclude the resource elements corresponding to the first type of resource; In a case that the first type of resource configured is used to carry the first type of signal, the demodulation reference signal is sequentially mapped and / or demapped on the scheduled resource according to the rule of frequency domain first and then time domain, and the first type of resource does not overlap with the resource used to carry the demodulation reference signal.

24. The method of claim 1, wherein, The determining the resource configuration information comprises: receiving fifth indication signaling; determining whether to perform waveform switching according to the fifth indication signaling; The fifth indication signaling comprises at least one of the following: DCI scheduling downlink, DCI non-scheduling downlink, high layer signaling.

25. The method of claim 24, wherein, In a case that the fifth indication signaling is DCI scheduling downlink, the waveform switching indication information comprises at least one of the following: indicated by a new bit field in the DCI; indicated by an existing bit field in the DCI; indicated by an existing field adjustment purpose in the DCI; indicated according to the condition of scheduling information, the scheduling information comprises at least one of the following: resource block (RB) quantity, modulation and coding scheme (MCS) index, demodulation reference signal code division multiplexing (DMRS CDM), number of layers, channel type.

26. The method of claim 24, wherein, In a case that the fifth indication signaling is DCI non-scheduling downlink, the waveform switching indication information comprises at least one of the following: indicated by a new bit field in the DCI; indicated by an existing bit field in the DCI.

27. The method of claim 24, further comprising: determining whether the fifth indication signaling enables according to at least one of the following: at least one high layer signaling, each high layer signaling used to indicate whether a bit field of at least one waveform switching is enabled; waveform switching enable in DCI signaling; whether a modulation and coding strategy is lower than a set threshold; whether a modulation order is lower than a set order; coverage performance; wherein the coverage performance comprises at least one of the following: whether an energy and / or SINR of an uplink reference signal measured by a network node is lower than a corresponding threshold, whether an energy and / or SINR of a downlink reference signal measured by a terminal node is lower than a corresponding threshold, a request indication of the terminal node.

28. A data transmission method applied to a second communication node, comprising: sending resource configuration information; receiving and / or sending data according to the resource configuration information; The resource configuration information comprises at least one of the following: first type of resource configuration information, scheduled frequency band resource, waveform switching configuration information.

29. A first communication node, comprising: a 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 of any one of claims 1-27.

30. A second communication node, comprising: a 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 of claim 28. a 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 of claim 28.

31. A computer readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the data transmission method according to any one of claims 1-28.

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