A method and apparatus used in a node for wireless communication

Abstract

A method and apparatus in a node used for wireless communication are disclosed. A communication node first transmits first information used to indicate K REs, and then transmits K modulation symbols on the K REs respectively; the time domain resources occupied by the K REs include M multicarrier symbols; a first multicarrier symbol is one of the M multicarrier symbols; K1 modulation symbols include all modulation symbols of the K modulation symbols mapped on the first multicarrier symbol; the K modulation symbols belong to a target modulation symbol sequence; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols; at least one of the time domain position of the first multicarrier symbol in the M multicarrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs is related. The application improves the link performance.

Description

[0001] This application is a divisional application of the following original application:

[0002] --Original application filing date: August 31, 2018

[0003] --Original application number: 201811009145.2

[0004] --Original application title: A method and apparatus used in a node for wireless communication Technical Field

[0005] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to schemes and apparatuses for various numerologies in wireless communication. Background Technology

[0006] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to conduct research on New Radio (NR) (or Fifth Generation, 5G). The 3GPP RAN #75 plenary meeting adopted the NR WI (Work Item), and began the standardization work of NR.

[0007] In response to the rapidly developing Vehicle-to-Everything (V2X) services, 3GPP has initiated standards development and research within the NR framework. Currently, 3GPP has completed the requirements definition for 5G V2X services, which are incorporated into standard TS22.886. 3GPP has identified and defined four major use case groups for 5G V2X services: Vehicles Platnooning, Extended Sensors, Advanced Driving (semi / fully automated driving), and Remote Driving. The NR V2X Study Item (SI) was approved at 3GPP RAN#80 plenary meeting. Summary of the Invention

[0008] Compared to existing LTE systems, a significant feature of 5G NR is its support for more flexible numerical structures, including subcarrier spacing (SCS), cyclic prefix (CP) length, and more flexible frame structures, including mini-slots, sub-slots, and slot aggregation. This flexible numerical and frame structure better meets the diverse needs of various new services, especially those in vertical industries. Because V2X services are distributed, the strength of the received signal (which may include both useful and interfering signals) varies greatly. Therefore, automatic gain control (AGC) is needed at the receiver to reduce quantization noise and avoid device nonlinearity. LTE V2X systems are based on a single mathematical structure (15kHz SCS, normal CP length, 1ms subframe length). In implementation, the first multi-carrier symbol is generally considered to be used for the receiver's AGC. However, this design may not be well-suited for 5G NR V2X networks that support various mathematical structures. Furthermore, due to timing inconsistencies during transmission in the sidelink, it is highly likely that gaps (GAPs) will be allowed at the beginning or end of transmission to avoid collisions. The existence of GAPs may also necessitate new designs for adaptation in 5G NR V2X networks with different mathematical structures.

[0009] To address the issue of supporting multiple mathematical structures in NR V2X, this application discloses a solution. It should be noted that, unless otherwise specified, the embodiments and features in the user equipment of this application can be applied to the base station, and vice versa. Unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. In particular, the solution disclosed in this application can be used in both NR V2X communication and communication between the base station and user equipment.

[0010] This application discloses a method used in a first communication node for wireless communication, characterized by comprising:

[0011] Send first information, which is used to indicate K REs, the time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1, and the first information is transmitted through the air interface;

[0012] K modulation symbols are transmitted on the K REs respectively;

[0013] Wherein, the first multicarrier symbol is one of the M multicarrier symbols, the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, and K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, and K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0014] As an example, by adjusting the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols, the resource mapping method and starting symbol of the target modulation symbol sequence can be configured, thereby reducing the impact of increased bit error rate due to AGC or avoiding transmission failure.

[0015] As an example, the number of multi-carrier symbols occupied by AGC or GAP is determined based on the subcarrier spacing of the subcarriers occupied by the K REs, thereby adjusting the mapping start method of the target modulation symbol sequence, which can achieve a balance between decoding delay and link performance.

[0016] As an example, supporting the target modulation symbol sequence to begin resource mapping on multicarrier symbols other than the initial multicarrier symbols can avoid the loss of information bits in the system code due to AGC, thereby improving decoding performance.

[0017] According to one aspect of this application, the above method is characterized by further comprising:

[0018] Send the first wireless signal;

[0019] Wherein, the end time of the transmission of the first wireless signal is not later than the start time of the transmission of the K modulation symbols, and the time interval between the end time of the transmission of the first wireless signal and the start time of the transmission of the K modulation symbols is the first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the time domain position of the first multicarrier symbol in the M multicarrier symbols is related to the time length of the first time interval.

[0020] As an example, when the length of the first time interval is sufficiently short, and the first wireless signal and the K modulation symbols are for the same receiver, the result of the same AGC can be shared, thereby avoiding the waste of resources caused by AGC.

[0021] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K3 REs among the K REs in the time domain are no earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used to determine the number of bits included in the first bit block.

[0022] According to one aspect of this application, the above method is characterized in that, for a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0023] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there exists a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same.

[0024] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K4 REs among the K REs in the time domain are earlier than the first multicarrier symbol, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0025] According to one aspect of this application, the above method is characterized in that the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in the M multicarrier symbols is one of X1 candidate index values.

[0026] For a given M, the subcarrier spacing of the subcarriers occupied by the K REs is one of the X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0027] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0028] This application discloses a method used in a second communication node for wireless communication, characterized by comprising:

[0029] Receive first information, which is used to indicate K REs, the time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1, and the first information is transmitted through the air interface;

[0030] K modulation symbols are received on the K REs respectively;

[0031] Wherein, the first multicarrier symbol is one of the M multicarrier symbols, the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, and K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, and K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0032] According to one aspect of this application, the above method is characterized by further comprising:

[0033] Receive the first wireless signal;

[0034] Wherein, the end time of the transmission of the first wireless signal is not later than the start time of the transmission of the K modulation symbols, and the time interval between the end time of the transmission of the first wireless signal and the start time of the transmission of the K modulation symbols is the first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the time domain position of the first multicarrier symbol in the M multicarrier symbols is related to the time length of the first time interval.

[0035] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K3 REs among the K REs in the time domain are no earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used to determine the number of bits included in the first bit block.

[0036] According to one aspect of this application, the above method is characterized in that, for a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0037] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there exists a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same.

[0038] According to one aspect of this application, the above method is characterized in that, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K4 REs among the K REs in the time domain are earlier than the first multicarrier symbol, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0039] According to one aspect of this application, the above method is characterized in that the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in the M multicarrier symbols is one of X1 candidate index values.

[0040] For a given M, the subcarrier spacing of the subcarriers occupied by the K REs is one of the X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0041] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0042] This application discloses a first communication node device used for wireless communication, characterized in that it includes:

[0043] The first transmitter module transmits first information, which is used to indicate K REs. The time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface.

[0044] The second transmitter module transmits K modulation symbols on the K REs respectively;

[0045] Wherein, the first multicarrier symbol is one of the M multicarrier symbols, the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, and K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, and K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0046] This application discloses a second communication node device used for wireless communication, characterized in that it includes:

[0047] The first receiver module receives first information, which is used to indicate K REs. The time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface.

[0048] The second receiver module receives K modulation symbols on the K REs respectively;

[0049] Wherein, the first multicarrier symbol is one of the M multicarrier symbols, the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, and K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, and K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0050] As an example, compared with existing methods in LTE V2X, this application has the following advantages:

[0051] - The method in this application can configure or change the resource mapping method and the starting multicarrier symbol according to the AGC occupancy duration, thereby reducing the impact of the increased bit error rate caused by AGC or avoiding transmission failure.

[0052] - The method in this application can determine the number of multi-carrier symbols occupied by AGC based on the mathematical structure (Numerology) used in the transmission, thereby adjusting the starting position of the multi-carrier symbols in the resource mapping, and achieving a balance between decoding latency and link performance;

[0053] The method in this application can effectively avoid the loss of information bits in the channel-coded system code due to AGC, thereby improving decoding performance. Attached Figure Description

[0054] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0055] Figure 1 A flowchart illustrating the first information and K modulation symbols according to an embodiment of this application is shown;

[0056] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0057] Figure 3 A schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0058] Figure 4 A schematic diagram of a first communication node device and a second communication node device according to an embodiment of this application is shown;

[0059] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is shown;

[0060] Figure 6 A schematic diagram of K REs according to an embodiment of this application is shown;

[0061] Figure 7 A schematic diagram of a first time interval according to an embodiment of this application is shown;

[0062] Figure 8 A schematic diagram illustrating the relationship between K3 REs and a first bit block according to an embodiment of this application is shown;

[0063] Figure 9 A schematic diagram illustrating the generation of a target modulation symbol sequence according to an embodiment of this application is shown;

[0064] Figure 10 A schematic diagram illustrating the relationship between a first RE and a second RE according to an embodiment of this application is shown;

[0065] Figure 11 A schematic diagram illustrating the relationship between a first modulation symbol group and a second modulation symbol group according to an embodiment of this application is shown;

[0066] Figure 12 A schematic diagram illustrating the relationship between the subcarrier spacing M and the index of the first multicarrier symbol of the subcarriers occupied by K REs according to an embodiment of this application is shown.

[0067] Figure 13 A structural block diagram of a processing apparatus in a first communication node device according to an embodiment of this application is shown;

[0068] Figure 14 A structural block diagram of a processing apparatus in a second communication node device according to an embodiment of the present application is shown. Detailed Implementation

[0069] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0070] Example 1

[0071] Example 1 illustrates a flowchart of the first information and K modulation symbols according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. (Attached) Figure 1In this document, each box represents a step. In Embodiment 1, the first communication node in this application sends first information, which is used to indicate K REs. The time-domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface. K modulation symbols are sent on the K REs respectively. The first multicarrier symbol is one of the M multicarrier symbols, and K1 modulation symbols include all the modulation symbols mapped onto the first multicarrier symbol from the K modulation symbols, where K1 is a positive integer. The first bit block is channel-coded and output... The first bit block is used to generate a target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence. The first bit block includes a positive integer number of bits. The first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1. The time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0072] As an example, the first communication node in this application is a base station (eNB or gNB).

[0073] As an example, the first communication node in this application is a user equipment (UE).

[0074] As an example, the first communication node in this application is a V2X user equipment.

[0075] As an example, the first communication node in this application is a V2X communication module.

[0076] As an example, the first information is physical layer information.

[0077] As an example, the first information is high-level information.

[0078] As one embodiment, the first information is transmitted via a physical layer signaling.

[0079] As an example, the first information is transmitted via PSCCH (Physical Sidelink Control Channel).

[0080] As an example, the first information is transmitted via PSSCH (Physical Sidelink Shared Channel).

[0081] As one embodiment, the first information includes all or part of an SCI (Sidelink Control Information).

[0082] As one embodiment, the first information includes all or some fields in an SCI (Sidelink Control Information).

[0083] As an example, the first information includes all or part of the fields in a DCI (Downlink Control Information).

[0084] As one embodiment, the first information includes all or part of a higher-level signaling.

[0085] As one embodiment, the first information includes all or part of the Information Elements (IEs) in a higher-level signaling.

[0086] As one embodiment, the first information includes all or part of the IEs (Information Elements) in an RRC (Radio Resource Control) signaling.

[0087] As one embodiment, the first information includes all or part of the domains in an IE within a higher-level signaling layer.

[0088] As an example, the first information being used to indicate the K REs (Resource Elements) means that the first information is used to directly indicate the K REs.

[0089] As an example, the first information being used to indicate the K REs means that the first information is used to indirectly indicate the K REs.

[0090] As an example, the first information being used to indicate the K REs means that the first information is used to explicitly indicate the K REs.

[0091] As an example, the first information being used to indicate the K REs means that the first information is used to implicitly indicate the K REs.

[0092] As an example, the first information is used to indicate that the K REs refer to the time-frequency resources occupied by the K REs.

[0093] As an example, the first information being used to indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols means that the first information is used to directly indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols.

[0094] As an example, the first information being used to indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols means that the first information is used to indirectly indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols.

[0095] As an example, the first information being used to indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols means that the first information is used to explicitly indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols.

[0096] As an example, the first information being used to indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols means that the first information is used to implicitly indicate the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols.

[0097] As an example, the K REs belong to a positive integer number of PRBs (Physical Resource Blocks) in the frequency domain.

[0098] As an example, the K REs belong to a positive integer number of subchannels in the frequency domain.

[0099] As an example, the K REs belong to the same subframe in the time domain.

[0100] As an example, the K REs belong to the same time slot in the time domain.

[0101] As an example, the K REs belong to a sub-slot in the time domain.

[0102] As an example, the K REs belong to a mini-slot in the time domain.

[0103] As an example, the K REs belong to a positive integer number of time slots in the time domain.

[0104] As an example, the K REs occupy a positive integer number of multicarrier symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol or DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbol) in the time domain.

[0105] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain.

[0106] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain. The first time-frequency resource includes REs other than the K REs.

[0107] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain. The first time-frequency resource includes only the K REs.

[0108] As an example, the time-domain resources occupied by the K REs only include the M multicarrier symbols.

[0109] As an example, the time-domain resources occupied by the K REs include multi-carrier symbols other than the M multi-carrier symbols.

[0110] As an example, each of the K REs occupies one multicarrier symbol (including CP, Cyclic Prefix) in the time domain and one subcarrier in the frequency domain.

[0111] As an example, the M multicarrier symbols occupy consecutive time-domain resources.

[0112] As an example, the M multicarrier symbols occupy discrete time-domain resources.

[0113] As an example, the M multicarrier symbols are M time-domain consecutive multicarrier symbols.

[0114] As an example, the M multicarrier symbols are M time-domain discrete multicarrier symbols.

[0115] As an example, K is greater than M.

[0116] As an example, K is a positive integer multiple of M.

[0117] As an example, the air interface is wireless.

[0118] As one embodiment, the air interface includes a wireless channel.

[0119] As an example, the air interface is the interface between the second communication node and the first communication node in this application.

[0120] As an example, the air interface is a Uu interface.

[0121] As an example, the air interface is a PC5 interface.

[0122] As an example, the air interface is via a sidelink.

[0123] As an example, the K modulation symbols are carried by a wireless signal, and the wireless signal carrying the K modulation symbols is transmitted through the air interface.

[0124] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are respectively resource-mapped to the K REs.

[0125] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are carried by a second wireless signal, which is transmitted on the K REs.

[0126] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are respectively resource-mapped to the K REs, and then sequentially processed by OFDM baseband signal generation, modulation and upconversion to obtain a second wireless signal, which is then transmitted through the air interface.

[0127] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are respectively mapped to virtual resource blocks, mapped from virtual resource blocks to physical resource blocks, and then sequentially processed through OFDM baseband signal generation, modulation and upconversion to obtain a second wireless signal, which is then transmitted through the air interface.

[0128] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are layer-mapped and then resource-mapped to the K REs respectively. Then, they are sequentially generated by OFDM baseband signal generation and modulated and upconverted to obtain a second radio signal, which is then transmitted through the air interface.

[0129] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are resource-mapped onto the K REs after layer mapping and precoding, and then after OFDM baseband signal generation, modulation and upconversion are performed to obtain a second radio signal, which is then transmitted through the air interface.

[0130] As an example, transmitting the K modulation symbols on the K REs respectively means that the K modulation symbols are mapped to virtual resource blocks (VRBs) and precoded after layer mapping and precoding, respectively, and then mapped from VRBs to physical resource blocks (PRBs). After passing through OFDM baseband signal generation and modulation and upconversion, a second radio signal is obtained, which is then transmitted through the air interface.

[0131] As an example, the first multicarrier symbol is the earliest multicarrier symbol in the time domain among the M multicarrier symbols.

[0132] As an example, the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols.

[0133] As an example, the first multicarrier symbol is a multicarrier symbol other than the latest time-domain multicarrier symbol among the M multicarrier symbols.

[0134] As an example, the first multicarrier symbol is the latest multicarrier symbol in the time domain among the M multicarrier symbols.

[0135] As an example, the first multicarrier symbol is a multicarrier symbol between the latest time-domain multicarrier symbol and the earliest time-domain multicarrier symbol among the M multicarrier symbols, where M is greater than 2.

[0136] As an example, the K1 modulation symbols include only all the modulation symbols that are mapped onto the first multicarrier symbol from the K modulation symbols.

[0137] As an example, the modulation symbols mapped to the first multi-carrier symbol from the K modulation symbols constitute the K1 modulation symbols.

[0138] As an example, the K1 modulation symbols also include modulation symbols other than those mapped onto the first multicarrier symbol.

[0139] As an example, the first bit block is a transport block (TB).

[0140] As an example, the first bit block is part of a transport block (TB).

[0141] As an example, the first bit block is a CB (Code Block).

[0142] As one embodiment, the first bit block is passed from the higher layer of the first communication node to the physical layer of the first communication node.

[0143] As an example, the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, which means that the first bit block is sequentially processed by CRC insertion, channel coding, rate matching, scrambling, and modulation to obtain the modulation symbols in the target modulation symbol sequence.

[0144] As an example, the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, which means that the first bit block is sequentially processed by CRC insertion, channel coding, rate matching, and modulation to obtain the modulation symbols in the target modulation symbol sequence.

[0145] As an example, the first bit block is sequentially processed by CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, and modulation to obtain the modulation symbols in the target modulation symbol sequence.

[0146] As an example, the first bit block is sequentially processed by CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, and precoding to obtain the modulation symbols in the target modulation symbol sequence.

[0147] As an example, the channel coding is LDPC (Low Density Parity Check) coding.

[0148] As an example, the channel coding is LDPC (Low Density Parity Check) coding as described in section 5.3.2 of 3GPP TS38.212 (V15.2.0).

[0149] As an example, the channel coding is polar coding.

[0150] As an example, the channel coding is the polar coding described in section 5.3.1 of 3GPP TS38.212 (V15.2.0).

[0151] As an example, the channel coding is Turbo coding.

[0152] As an example, the channel coding is convolutional coding.

[0153] As an example, each of the K modulation symbols is a modulation symbol in the target modulation symbol sequence.

[0154] As an example, the modulation symbols in the target modulation symbol sequence are arranged in the order of the channel coding output.

[0155] As an example, if K2 is greater than K1, any one of the K2 modulation symbols other than the K1 modulation symbols does not belong to the K modulation symbols.

[0156] As an example, if K2 is greater than K1, any one of the K2 modulation symbols other than the K1 modulation symbols is a modulation symbol other than the K modulation symbols.

[0157] As an example, if K2 is equal to K1, then the K2 modulation symbols are the same as the K1 modulation symbols.

[0158] As an example, if K2 is greater than K1, the K2 modulation symbols also include modulation symbols other than the K1 modulation symbols.

[0159] As an example, the K2 modulation symbols include each of the K1 modulation symbols.

[0160] As an example, if K2 is greater than K1, one of the K2 modulation symbols is punctured during resource mapping.

[0161] As an example, the K1 modulation symbols include the first modulation symbol in the target modulation symbol sequence.

[0162] As an example, the modulation symbols in the target modulation symbol sequence are resource-mapped from the first multicarrier symbol to the K REs.

[0163] As an example, the first multicarrier symbol is the starting multicarrier symbol of the modulation symbol start resource mapping in the target modulation symbol sequence.

[0164] As an example, at least one of K and M is used to determine the number of bits included in the first bit block.

[0165] As an example, the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols refers to the time-domain order of the first multi-carrier symbol among the M multi-carrier symbols.

[0166] As an example, the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols refers to the index of the first multi-carrier symbol among the M multi-carrier symbols, which are indexed sequentially from smallest to largest according to their chronological order.

[0167] As an example, the time-domain position of the first multi-carrier symbol among the M multi-carrier symbols refers to the arrangement position of the first multi-carrier symbol among the M multi-carrier symbols.

[0168] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the time-domain position of the first multicarrier symbol in the M multicarrier symbols refers to the relative position of the first multicarrier symbol and the earliest time-domain multicarrier symbol among the M multicarrier symbols.

[0169] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the time-domain position of the first multicarrier symbol in the M multicarrier symbols refers to the time interval between the start time of the first multicarrier symbol and the start time of the earliest time-domain multicarrier symbol among the M multicarrier symbols.

[0170] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the time-domain position of the first multicarrier symbol in the M multicarrier symbols refers to the time interval between the end time of the first multicarrier symbol and the end time of the earliest time-domain multicarrier symbol among the M multicarrier symbols.

[0171] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the temporal position of the first multicarrier symbol in the M multicarrier symbols refers to the difference between the index value of the first multicarrier symbol and the index value of the earliest temporal multicarrier symbol among the M multicarrier symbols, which are indexed sequentially from smallest to largest according to time sequence.

[0172] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence. The index value of the first multicarrier symbol is not greater than the first index value, and the first index value is not greater than the index value of the latest multicarrier symbol in the time domain among the M multicarrier symbols. The first index value is fixed, and the time domain position of the first multicarrier symbol in the M multicarrier symbols refers to the index value of the first multicarrier symbol that is not greater than the first index value.

[0173] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the M multicarrier symbols are indexed sequentially from smallest to largest according to their chronological order. The index value of the first multicarrier symbol is not greater than the first index value, and the first index value is not greater than the index value of the latest multicarrier symbol in the time domain among the M multicarrier symbols. The first index value is independent of M, and the time domain position of the first multicarrier symbol in the M multicarrier symbols refers to the index value of the first multicarrier symbol that is not greater than the first index value.

[0174] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols refers to the time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols. The time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols is not greater than a first length, which is independent of M.

[0175] As an example, for a given subcarrier spacing and CP (Cyclic Prefix) length of the subcarriers occupied by the K REs, the time-domain position of the first multicarrier symbol in the M multicarrier symbols refers to the time interval between the end time of the first multicarrier symbol and the end time of the earliest time-domain multicarrier symbol among the M multicarrier symbols. The time interval between the end time of the first multicarrier symbol and the end time of the earliest time-domain multicarrier symbol among the M multicarrier symbols is not greater than a first length, which is independent of M.

[0176] As an example, the subcarrier spacing (SCS) of the subcarriers occupied by the K REs is equal to one of {15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz}.

[0177] As an example, the subcarrier spacing (SCS) of the subcarriers occupied by the K REs is related to the frequency range of the carrier to which the K REs belong in the frequency domain.

[0178] As an example, if the carrier to which the K REs belong in the frequency domain belongs to frequency range 1 (FR1, i.e., below 6 GHz), the subcarrier spacing (SCS) of the subcarriers occupied by the K REs is equal to one of {15 kHz, 30 kHz, 60 kHz}; if the carrier to which the K REs belong in the frequency domain belongs to frequency range 2 (FR2, i.e., above 6 GHz), the subcarrier spacing (SCS) of the subcarriers occupied by the K REs is equal to one of {60 kHz, 120 kHz, 240 kHz, 480 kHz}.

[0179] As an example, the K modulation symbols are mapped onto the K REs in a frequency-first, time-second order.

[0180] As an example, the K modulation symbols are mapped onto the K REs in a time-first, then frequency order.

[0181] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs.

[0182] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the K REs and at least one of M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols is related to M.

[0183] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and M are all related.

[0184] As an example, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M means that the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M are used to determine the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0185] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M have a mapping relationship.

[0186] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M have a functional relationship.

[0187] As an example, the relationship between the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M means that the time-domain position of the first multi-carrier symbol in the M multi-carrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M have a corresponding relationship.

[0188] As an example, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the subcarrier spacing of the subcarriers occupied by the K REs means that, for a given M, the frequency range (FR) (including FR1 and FR2) of the carriers to which the K REs belong is used to determine the time-domain position of the first multicarrier symbol in the M multicarrier symbols, and the frequency range (FR) of the carriers to which the K REs belong is also used to determine the subcarrier spacing of the subcarriers occupied by the K REs.

[0189] Example 2

[0190] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown. Figure 2This diagram illustrates the network architecture 200 of NR 5G, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The NR 5G or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200. EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet services 230. EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE 201. gNB 203 can connect to other gNBs 204 via the Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. In a V2X network, gNB 203 can be a base station, a ground base station relayed via satellite, or a Road Side Unit (RSU), etc. gNB 203 provides UE 201 with access to the EPC / 5G-CN210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, communication units in automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, automotive terminal, vehicle-to-everything (V2X) device, or any other suitable term.gNB203 connects to EPC / 5G-CN210 via the S1 / NG interface. EPC / 5G-CN210 includes MME / AMF / UPF 211, other MME / AMF / UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet Data Network Gateway) 213. MME / AMF / UPF 211 is the control node handling signaling between UE201 and EPC / 5G-CN210. Generally, MME / AMF / UPF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW 212, which is itself connected to P-GW 213. P-GW 213 provides UE IP address allocation and other functions. P-GW 213 connects to Internet service 230. Internet services 230 include Internet Protocol services provided by operators, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem), and PS (Packet Switching) streaming services.

[0191] As an example, the UE201 corresponds to the first communication node device in this application.

[0192] As an example, the UE201 supports transmission in the accompanying link.

[0193] As an example, the UE201 supports the PC5 interface.

[0194] As an example, the UE201 supports vehicle-to-everything (V2X) connectivity.

[0195] As an example, the UE201 supports V2X services.

[0196] As an example, the gNB203 corresponds to the first communication node device in this application.

[0197] As an example, the UE241 corresponds to the second communication node device in this application.

[0198] As an example, the UE241 supports transmission in the accompanying link.

[0199] As an example, the UE241 supports the PC5 interface.

[0200] As an example, the UE241 supports vehicle-to-everything (V2X) connectivity.

[0201] As an example, the UE241 supports V2X services.

[0202] As an example, UE201 and UE241 are within the coverage area of ​​the same base station device.

[0203] As an example, UE201 and UE241 are within the coverage of different base station devices.

[0204] As an example, UE201 and UE241 are not within the coverage of either base station device.

[0205] As an example, one of UE201 and UE241 is within the coverage of one base station device, while the other is not within the coverage of either base station device.

[0206] Example 3

[0207] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and control plane (if supported). Figure 3The radio protocol architecture between a first communication node device (UE or RSU in V2X) and a second communication node device (another UE or RSU in V2X) is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first and second communication node devices via PHY301. In the user plane, L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304. Although not illustrated, the first and second communication node devices may have several upper layers above L2 layer 305, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.). PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides header compression for upper layer packets to reduce radio transmission overhead and provides security by encrypting packets. RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks). MAC sublayer 302 is also responsible for HARQ operation, if supported. In the control plane, the radio protocol architecture for the first and second communication node devices is largely the same for physical layer 301 and L2 layer 305, but without header compression functionality for the control plane. The control plane also includes an RRC (Radio Resource Control) sublayer 306 in layer 3 (L3). RRC sublayer 306 is responsible for acquiring radio resources (i.e., radio bearers) and using RRC signaling to configure the lower layers.

[0208] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first communication node device in this application.

[0209] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second communication node device in this application.

[0210] As an example, the first information in this application is generated in the RRC306.

[0211] As an example, the first information in this application is generated by the MAC302.

[0212] As an example, the first information in this application is generated in the PHY301.

[0213] As an example, the first bit block in this application is generated in the RRC306.

[0214] As an example, the first bit block in this application is generated by the MAC302.

[0215] As an example, the first bit block in this application is generated in the PHY301.

[0216] As an example, the K modulation symbols in this application are generated in the PHY301

[0217] As an example, the first wireless signal in this application is generated in the RRC306.

[0218] As an example, the first wireless signal generation in this application is related to the MAC302.

[0219] As an example, the first wireless signal in this application is generated in the PHY301.

[0220] Example 4

[0221] Example 4 illustrates a schematic diagram of a first communication node device and a second communication node device according to this application, as shown in the attached diagram. Figure 4 As shown.

[0222] The first communication node device (450) includes a controller / processor 490, a memory 480, a receiver processor 452, a transmitter / receiver 456, a transmitter processor 455, and a data source 467. The transmitter / receiver 456 includes an antenna 460. The data source 467 provides upper-layer packets to the controller / processor 490. The controller / processor 490 performs packet header compression / decompression, encryption / decryption, packet segmentation and reordering, and multiplexing / demultiplexing between the logical and transport channels to implement L2 layer protocols for the user plane and control plane. The upper-layer packets may include data or control information, such as DL-SCH, UL-SCH, or SL-SCH. The transmitter processor 455 implements various signal transmission processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control / distribution, precoding, and physical layer control signaling generation. The receiver processor 452 implements various signal reception processing functions for the L1 layer (i.e., the physical layer), including decoding, deinterleaving, descrambling, demodulation, deprecoding, and physical layer control signaling extraction. The transmitter 456 converts the baseband signal provided by the transmitter processor 455 into a radio frequency signal and transmits it via the antenna 460. The receiver 456 converts the radio frequency signal received via the antenna 460 into a baseband signal and provides it to the receiver processor 452. The composition in the second communication node device (410) is the same as that in the first type of communication node device 450.

[0223] In the SL (Sidelink), upper-layer packets (such as the first information, the first bit block, and the information carried in the first radio signal in this application) are provided to the controller / processor 490. The controller / processor 490 implements the functions of Layer 2. The controller / processor 490 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between the logical and transport channels, and allocation of radio resources based on various priority metrics. The controller / processor 490 is also responsible for HARQ operations (if supported), retransmission of lost packets, and signaling to the second communication node device 410, such as the first information in this application, all of which are generated in the controller / processor 490. The transmitter processor 455 implements various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control / allocation, precoding, and physical layer control signaling generation. The generation of the first information, K modulation symbols, and the physical layer signal of the first wireless signal in this application is all completed in the transmitter processor 455. The modulation symbols are divided into parallel streams, and each stream is mapped to a corresponding multi-carrier subcarrier and / or multi-carrier symbol. Then, the transmitter processor 455 maps these streams to the antenna 460 via the transmitter 456 and transmits them as radio frequency signals. At the receiving end, each receiver 416 receives the radio frequency signal through its corresponding antenna 420. Each receiver 416 recovers the baseband information modulated onto the radio frequency carrier and provides the baseband information to the receiver processor 412. The receiver processor 412 implements various signal reception processing functions for the L1 layer. The signal reception and processing functions include receiving the physical layer signals of the first information, K modulation symbols, and the first wireless signal in this application. This involves demodulating the multi-carrier symbols in the multi-carrier symbol stream using various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), followed by descrambling, decoding, and deinterleaving to recover the data or control signals transmitted by the first communication node device 450 on the physical channel. The data and control signals are then provided to the controller / processor 440. The controller / processor 440 implements Layer 2 and interprets the information carried by the first information, the first bit block, and the first wireless signal in this application. The controller / processor may be associated with a memory 430 that stores program code and data. The memory 430 may be referred to as computer-readable media.

[0224] As one embodiment, the first communication node device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication node device 450 at least: transmits first information, the first information being used to indicate K REs, the time-domain resources occupied by the K REs including M multicarrier symbols, where K and M are both positive integers greater than 1, the first information being transmitted via an air interface; transmits K modulation symbols on the K REs respectively; wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include the K multicarrier symbols. All modulation symbols mapped onto the first multicarrier symbol in the modulation symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the K REs and the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0225] As one embodiment, the first communication node device 450 includes: a memory storing a computer-readable instruction program, which generates actions when executed by at least one processor, the actions including: transmitting first information, the first information being used to indicate K REs, the time-domain resources occupied by the K REs including M multicarrier symbols, where K and M are both positive integers greater than 1, the first information being transmitted via an air interface; transmitting K modulation symbols on the K REs respectively; wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include those of the K modulation symbols mapped onto the first multicarrier symbol. All modulation symbols, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the K REs and the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0226] As one embodiment, the second communication node device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication node device 410 at least: receives first information, the first information being used to indicate K REs, the time-domain resources occupied by the K REs including M multicarrier symbols, where K and M are both positive integers greater than 1, the first information being transmitted via an air interface; receives K modulation symbols on the K REs respectively; wherein, the first multicarrier symbol is one of the M multicarrier symbols, and K1 modulation symbols include all the modulation symbols of the K modulation symbols mapped onto the first multicarrier symbol, where K1 is a positive integer; and a first bit block is channel-coded and output... The first bit block is used to generate a target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence. The first bit block includes a positive integer number of bits. The first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1. The time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0227] As one embodiment, the second communication node device 410 includes: a memory storing a computer-readable instruction program, which generates actions when executed by at least one processor, the actions including: receiving first information, the first information being used to indicate K REs, the time-domain resources occupied by the K REs including M multicarrier symbols, where K and M are both positive integers greater than 1, the first information being transmitted via an air interface; and receiving K modulation symbols on the K REs respectively; wherein the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include those of the K modulation symbols mapped onto the first multicarrier symbol. All modulation symbols, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the K REs and the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0228] As one embodiment, a transmitter 456 (including an antenna 460), a transmitter processor 455, and a controller / processor 490 are used in this application to transmit the first information.

[0229] As an example, the controller / processor 490 is used to generate the first bit block in this application.

[0230] As one embodiment, a transmitter 456 (including an antenna 460) and a transmission processor 455 are used to transmit the K modulation symbols in this application.

[0231] As one embodiment, a transmitter 456 (including an antenna 460), a transmitter processor 455, and a controller / processor 490 are used in this application to transmit the first wireless signal.

[0232] As one embodiment, receiver 416 (including antenna 420), receiver processor 412 and controller / processor 440 are used to receive the first information in this application.

[0233] As one embodiment, the controller / processor 440 is used to read the first bit block in this application.

[0234] As one embodiment, receiver 416 (including antenna 420) and receiver processor 412 are used to receive the K modulation symbols of this application.

[0235] As one embodiment, receiver 416 (including antenna 420), receiver processor 412 and controller / processor 440 are used to receive the first wireless signal in this application.

[0236] Example 5

[0237] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In the process, the first communication node N1 and the second communication node U2 communicate with each other, and the steps within the dashed box are optional.

[0238] for First communication node N1 In step S11, a first wireless signal is transmitted; in step S12, first information is transmitted; and in step S13, K modulation symbols are transmitted on K REs respectively.

[0239] for Second communication node U2 In step S21, a first wireless signal is received; in step S22, first information is received; and in step S23, K modulation symbols are received on K REs respectively.

[0240] In embodiment 5, the first information is used to indicate K REs, the time-domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1, and the first information is transmitted through the air interface; the first multicarrier symbol is one of the M multicarrier symbols, and K1 modulation symbols include all the modulation symbols of the K modulation symbols mapped onto the first multicarrier symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the initial K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, and the K... 2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the subcarriers occupied by the K REs and M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols; the transmission end time of the first radio signal is not later than the transmission start time of the K modulation symbols, and the time interval between the transmission end time of the first radio signal and the transmission start time of the K modulation symbols is a first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the time length of the first time interval.

[0241] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K3 REs among the K REs in the time domain are no earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and K3 REs is used to determine the number of bits included in the first bit block.

[0242] As an example, for a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0243] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there exists a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same.

[0244] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K4 REs among the K REs in the time domain are earlier than the first multicarrier symbol, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0245] As an example, the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in the M multicarrier symbols is one of X1 candidate index values;

[0246] For a given M, the subcarrier spacing of the subcarriers occupied by the K REs is one of the X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0247] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0248] As an example, the target receiver of the first wireless signal and the K modulation symbols is the same.

[0249] As an example, the first communication node assumes that the receiver of the first wireless signal and the K modulation symbols are the same.

[0250] As an example, the first communication node may assume that the receiver of the first wireless signal and the K modulation symbols are the same.

[0251] As an example, both the first wireless signal and the K modulation symbols are broadcast.

[0252] As an example, the first wireless signal and the K modulation symbols can be received by the same receiver.

[0253] Example 6

[0254] Example 6 illustrates a schematic diagram of K REs according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown. In the appendix Figure 6 In the diagram, the horizontal axis represents time, the vertical axis represents frequency, each small square filled with intersecting lines represents one of the K REs in this application, each small square without filling represents a punched or abandoned RE other than the K REs, and the dashed lines with arrows represent the mapping order of the K modulation symbols in this application during resource mapping.

[0255] In embodiment 6, the time-domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. K modulation symbols are transmitted on each of the K REs. The first multicarrier symbol is one of the M multicarrier symbols. K1 modulation symbols include all the modulation symbols mapped onto the first multicarrier symbol from the K modulation symbols, where K1 is a positive integer. The output of the first bit block after channel coding is used to generate the target modulation symbol sequence. Each of the K modulation symbols belongs to the target modulation symbol sequence. The first bit block includes a positive integer number of bits. The first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1.

[0256] As an example, the K REs belong to a positive integer number of PRBs (Physical Resource Blocks) in the frequency domain.

[0257] As an example, the K REs belong to a positive integer number of subchannels in the frequency domain.

[0258] As an example, the K REs belong to the same subframe in the time domain.

[0259] As an example, the K REs belong to the same time slot in the time domain.

[0260] As an example, the K REs belong to a sub-slot in the time domain.

[0261] As an example, the K REs belong to a mini-slot in the time domain.

[0262] As an example, the K REs belong to a positive integer number of time slots in the time domain.

[0263] As an example, the K REs occupy a positive integer number of multicarrier symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol or DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbol) in the time domain.

[0264] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain.

[0265] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain. The first time-frequency resource includes REs other than the K REs.

[0266] As an example, the K REs belong to a first time-frequency resource, which occupies a positive integer number of PRBs in the frequency domain and a positive integer number of multicarrier symbols in the time domain. The first time-frequency resource includes only the K REs.

[0267] As an example, the time-domain resources occupied by the K REs only include the M multicarrier symbols.

[0268] As an example, the time-domain resources occupied by the K REs include multi-carrier symbols other than the M multi-carrier symbols.

[0269] As an example, each of the K REs occupies one multicarrier symbol (including CP, Cyclic Prefix) in the time domain and one subcarrier in the frequency domain.

[0270] As an example, the M multicarrier symbols occupy consecutive time-domain resources.

[0271] As an example, the M multicarrier symbols occupy discrete time-domain resources.

[0272] As an example, the M multicarrier symbols are M time-domain consecutive multicarrier symbols.

[0273] As an example, the M multicarrier symbols are M time-domain discrete multicarrier symbols.

[0274] As an example, K is greater than M.

[0275] As an example, K is a positive integer multiple of M.

[0276] As an example, the K modulation symbols are mapped onto the K REs in a frequency-first, time-second order.

[0277] As an example, the K modulation symbols are mapped onto the K REs in a time-first, then frequency order.

[0278] As an example, if K2 is greater than K1, any one of the K2 modulation symbols other than the K1 modulation symbols does not belong to the K modulation symbols.

[0279] As an example, if K2 is greater than K1, any one of the K2 modulation symbols other than the K1 modulation symbols is a modulation symbol other than the K modulation symbols.

[0280] As an example, if K2 is equal to K1, then the K2 modulation symbols are the same as the K1 modulation symbols.

[0281] As an example, if K2 is greater than K1, the K2 modulation symbols also include modulation symbols other than the K1 modulation symbols.

[0282] As an example, the K2 modulation symbols include each of the K1 modulation symbols.

[0283] As an example, if K2 is greater than K1, one of the K2 modulation symbols is punctured during resource mapping.

[0284] As an example, if K2 is greater than K1, one of the K2 modulation symbols is dropped during resource mapping.

[0285] Example 7

[0286] Example 7 illustrates a schematic diagram of a first time interval according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 In the diagram, the horizontal axis represents time, the rectangle filled with cross lines represents the time domain resources occupied by the first radio signal, the rectangle filled with diagonal lines represents the time domain resources occupied by the first multi-carrier symbol, and the rectangle with thick lines and no fill represents the time domain resources occupied by M multi-carrier symbols. The length of the first time interval in case A is greater than the length of the first time interval in case B. In cases A and B, the time domain resources used by the receiver for AGC or GAP may be different.

[0287] In Embodiment 7, the end time of transmission of the first wireless signal in this application is no later than the start time of transmission of the K modulation symbols in this application, and the time interval between the end time of transmission of the first wireless signal and the start time of transmission of the K modulation symbols is a first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs in this application and a given M in this application, the time domain position of the first multicarrier symbol in this application in the M multicarrier symbols is related to the time length of the first time interval.

[0288] As an example, a transport block (TB) sequentially undergoes CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, mapping to resource element, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0289] As an example, a transport block (TB) sequentially undergoes CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, precoding, mapping to virtual resource blocks, mapping from virtual to physical resource blocks, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0290] As an example, a transport block (TB) sequentially undergoes CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, precoding, mapping to resource element, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0291] As an example, a transport block (TB) sequentially undergoes CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, precoding, mapping to virtual resource blocks, mapping from virtual to physical resource blocks, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0292] As an example, a transport block (TB) sequentially undergoes CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, transform precoding, precoding, mapping to resource element, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0293] As an example, a transport block (TB) sequentially undergoes CRC insertion, channel coding, rate matching, scrambling, modulation, layer mapping, transform precoding, precoding, mapping to virtual resource blocks, mapping from virtual to physical resource blocks, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0294] As an example, a transport block (TB) sequentially undergoes CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, transform precoding, precoding, mapping to resource element, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0295] As an example, a transport block (TB) sequentially undergoes CRC insertion, segmentation, CRC insertion at the coding block level, channel coding, rate matching, concatenation, scrambling, modulation, layer mapping, transform precoding, precoding, mapping to virtual resource blocks, mapping from virtual to physical resource blocks, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0296] As an example, an SCI (Sidelink Control Information) is sequentially processed through CRC insertion, channel coding, rate matching, scrambling, modulation, mapping to physical resources, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0297] As an example, an SCI (Sidelink Control Information) is sequentially processed through CRC insertion, channel coding, rate matching, scrambling, modulation, transform precoding, mapping to physical resources, OFDM baseband signal generation, and modulation and upconversion to obtain the first wireless signal.

[0298] As an example, the transmission start time of the K modulation symbols refers to the start time of the time domain resources occupied by the K REs.

[0299] As an example, the transmission start time of the K modulation symbols refers to the transmission start time of the wireless signal carrying the K modulation symbols.

[0300] As an example, the end time of the transmission of the first wireless signal is the start time of the transmission of the K modulation symbols.

[0301] As an example, the end time of the transmission of the first wireless signal is earlier than the start time of the transmission of the K modulation symbols.

[0302] As an example, for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval means that the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval have a corresponding relationship.

[0303] As an example, for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval means that the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval have a mapping relationship.

[0304] As an example, for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval means that the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval have a functional relationship.

[0305] As an example, for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the length of the first time interval means that the length of the first time interval is used to determine the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0306] As an example, for a given subcarrier spacing of the K REs and a given M, the relationship between the time-domain position of the first multicarrier symbol in the M multicarrier symbols and the duration of the first time interval means that: the duration of the first time interval belongs to one of the Q candidate length intervals, the Q candidate length intervals correspond one-to-one with the Q candidate time-domain positions, the time-domain position of the first multicarrier symbol in the M multicarrier symbols is one of the Q candidate time-domain positions, and the duration of the first time interval determines the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0307] Example 8

[0308] Example 8 illustrates a schematic diagram of the relationship between K3 REs and the first bit block according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 In the diagram, the horizontal axis represents time, the vertical axis represents frequency, the rectangle filled with diagonal lines represents the first multicarrier symbol, and each rectangle filled with intersecting lines represents a multicarrier symbol occupied by K3 REs outside the first multicarrier symbol.

[0309] In Embodiment 8, if the first multicarrier symbol in this application is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols in this application, the multicarrier symbols occupied by K3 REs among the K REs in this application in the time domain are not earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and K3 REs is used to determine the number of bits included in the first bit block of this application.

[0310] As an example, the first bit block is a TB (Transport Block), and the number of bits included in the first bit block is the Transport Block Size (TBS) of the first bit block.

[0311] As an example, the multicarrier symbol occupied by each of the K3 REs in the time domain is no earlier than the first multicarrier symbol.

[0312] As an example, the use of at least one of K3 and the number of multicarrier symbols occupied by K3 REs to determine the number of bits included in the first bit block means that K3 is used to determine the number of bits included in the first bit block.

[0313] As an example, the use of at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that the number of multicarrier symbols occupied by the K3 REs is used to determine the number of bits included in the first bit block.

[0314] As an example, using at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that both the number of multicarrier symbols occupied by K3 and the K3 REs are used to determine the number of bits included in the first bit block.

[0315] As an example, the use of at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used by the first communication node to determine the number of bits included in the first bit block.

[0316] As an example, the use of at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used by the second communication node in this application to determine the number of bits included in the first bit block.

[0317] As an example, the use of at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used to determine the number of bits included in the first bit block based on a specific mapping relationship.

[0318] As an example, the use of at least one of the number of multicarrier symbols occupied by K3 and the K3 REs to determine the number of bits included in the first bit block means that at least one of the number of multicarrier symbols occupied by K3 and the K3 REs is used to determine the number of bits included in the first bit block based on a specific functional relationship.

[0319] As an example, K3 determines the number of bits included in the first bit block using the method in section 6.1.4.2 of 3GPP 38.214 (V15.2.0).

[0320] As an example, K3 is referred to as N in section 6.1.4.2 of 3GPP 38.214 (V15.2.0). RE The number of bits (TBS) included in the first bit block is determined using the method in section 6.1.4.2 of 3GPP 38.214 (V15.2.0).

[0321] As an example, K is referred to as N in section 6.1.4.2 of 3GPP 38.214 (V15.2.0). RE The first bit count is obtained using the method in section 6.1.4.2 of 3GPP 38.214 (V15.2.0), and then the first bit count is scaled according to the ratio of K3 to K to determine the number of bits included in the first bit block.

[0322] As an example, the method in section 6.1.4.2 of 3GPP 38.214 (V15.2.0) is adopted, and the number of PRBs occupied by the K REs is taken as n. PRB The first bit count is obtained, and then the first bit count is scaled according to the ratio of the number of multicarrier symbols occupied by the K3 REs to the M to determine the number of bits included in the first bit block.

[0323] Example 9

[0324] Example 9 illustrates a schematic diagram of the generation of a target modulation symbol sequence according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown. In the appendix Figure 9 In the diagram, the ring-shaped area filled with diagonal lines represents a block of bits that has been modulated to generate the target modulation symbol sequence.

[0325] In Embodiment 9, for a given K REs in this application and a given M in this application, the number of modulation symbols included in the target modulation symbol sequence in this application and the time-domain position of the first multicarrier symbol in this application among the M multicarrier symbols in this application are related.

[0326] As an example, for a given modulation scheme, the number of modulation symbols included in the target modulation symbol sequence is proportional to the maximum number of bits that the first bit block can support in the circular buffer of the channel coding.

[0327] As an example, for a given modulation scheme, the number of modulation symbols included in the target modulation symbol sequence is proportional to the maximum number of bits that the first bit block can support in the circular buffer of the channel coding.

[0328] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the temporal position of the first multicarrier symbol in the M multicarrier symbols means that the temporal position of the first multicarrier symbol in the M multicarrier symbols is used to determine the length of the cyclic buffer of the first bit block in channel coding, and the relationship between the number of modulation symbols included in the target modulation symbol sequence and the length of the cyclic buffer.

[0329] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the time-domain position of the first multicarrier symbol in the M multicarrier symbols means that: the time-domain position of the first multicarrier symbol in the M multicarrier symbols is used to determine the number of target REs in rate matching, the number of target REs is used to determine the length of the cyclic buffer of the first bit block in channel coding, and the number of modulation symbols included in the target modulation symbol sequence is related to the length of the cyclic buffer.

[0330] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the time-domain position of the first multicarrier symbol in the M multicarrier symbols means that: the time-domain position of the first multicarrier symbol in the M multicarrier symbols is used to determine the number of REs in the K REs that occupy time no earlier than the first multicarrier symbol; the number of REs in the K REs that occupy time no earlier than the first multicarrier symbol is the target number of REs for rate matching of the first bit block in channel coding; the target number of REs is used to determine the length of the cyclic buffer of the first bit block in channel coding; and the number of modulation symbols included in the target modulation symbol sequence is related to the length of the cyclic buffer.

[0331] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the temporal position of the first multicarrier symbol in the M multicarrier symbols means that the temporal position of the first multicarrier symbol in the M multicarrier symbols is used to determine the number of modulation symbols included in the target modulation symbol sequence.

[0332] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the temporal position of the first multicarrier symbol in the M multicarrier symbols means that: the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, the temporal position of the first multicarrier symbol in the M multicarrier symbols refers to the index value of the first multicarrier symbol in the M multicarrier symbols, and the number of modulation symbols included in the target modulation symbol sequence and the index value of the first multicarrier symbol in the M multicarrier symbols are linearly negatively correlated.

[0333] As an example, for a given K REs and a given M, the relationship between the number of modulation symbols included in the target modulation symbol sequence and the temporal position of the first multicarrier symbol in the M multicarrier symbols means that: the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, the temporal position of the first multicarrier symbol in the M multicarrier symbols refers to the index value of the first multicarrier symbol in the M multicarrier symbols, and the number of modulation symbols included in the target modulation symbol sequence is inversely proportional to the index value of the first multicarrier symbol in the M multicarrier symbols.

[0334] Example 10

[0335] Example 10 illustrates a schematic diagram of the relationship between the first RE and the second RE according to an embodiment of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In the diagram, the horizontal axis represents time, the vertical axis represents frequency, the rectangle filled with diagonal lines represents the first multi-carrier symbol, the rectangle filled with cross lines represents the first RE, and the rectangle filled with cross lines represents the second RE.

[0336] In Embodiment 10, if the first multicarrier symbol in this application is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols in this application; among the K REs in this application, there is a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols in this application are the same.

[0337] As an example, the subcarrier spacing of any two REs among the K REs is equal.

[0338] As an example, the first RE and the second RE occupy the same subcarrier in the frequency domain.

[0339] As an example, the first RE and the second RE occupy the same frequency domain resources in the frequency domain.

[0340] As an example, whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE are the same among the K modulation symbols is irrelevant to the content of the modulation symbols in the target modulation symbol sequence.

[0341] As an example, whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE are the same among the K modulation symbols is irrelevant to the bits in the first bit block.

[0342] As an example, the modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are repetitions of the modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain.

[0343] As an example, the modulation symbols in the K modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain and the modulation symbols in the K modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain are the same according to the subcarriers they occupy.

[0344] As an example, the modulation symbols of the K modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are used to generate a first sub-signal, and the modulation symbols of the K modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain are used to generate a second sub-signal. The second sub-signal is a repetition of the first sub-signal on two multi-carrier symbols.

[0345] Example 11

[0346] Example 11 illustrates a schematic diagram of the relationship between a first modulation symbol group and a second modulation symbol group according to an embodiment of this application, as shown in the attached diagram. Figure 11 As shown. In the appendix Figure 11 In the diagram, the horizontal axis represents time, the vertical axis represents frequency, and the area filled with diagonal lines represents the first multi-carrier symbol.

[0347] In Embodiment 11, if the first multicarrier symbol in this application is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols in this application, the multicarrier symbols occupied by K4 REs among the K REs in this application in the time domain are earlier than the first multicarrier symbol in this application, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence in this application are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0348] As an example, the first modulation symbol group includes a positive integer number of modulation symbols not less than K5.

[0349] As an example, the second modulation symbol group includes a positive integer number of modulation symbols not less than K4.

[0350] As an example, the first modulation symbol group includes only the K5 modulation symbols.

[0351] As an example, the second modulation symbol group includes only the K4 modulation symbols.

[0352] As an example, the modulation symbols in the first modulation symbol group are punched to obtain the K5 modulation symbols.

[0353] As an example, the modulation symbols in the second modulation symbol group are punched to obtain the K4 modulation symbols.

[0354] As an example, the modulation symbols in the first modulation symbol group are obtained by dropping a positive integer number of modulation symbols to obtain the K5 modulation symbols.

[0355] As an example, the modulation symbols in the second modulation symbol group are obtained by dropping a positive integer number of modulation symbols to obtain the K4 modulation symbols.

[0356] As an example, the first P1 modulation symbols in the target modulation symbol sequence form the first modulation symbol group in sequence, and the modulation symbols other than the P1 modulation symbols in the target modulation symbol sequence form the second modulation symbol group, where P1 is a positive integer not less than K5.

[0357] As an example, the modulation symbols in the target modulation symbol sequence are sequentially divided into the first modulation symbol group and the second modulation symbol group according to the index order.

[0358] As an example, the modulation symbols in the target modulation symbol sequence are sequentially divided into the first modulation symbol group and the second modulation symbol group according to the order of channel coding output.

[0359] As an example, the modulation symbols in the target modulation symbol sequence are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. Then, the earliest multicarrier symbol among the M multicarrier symbols is mapped to the K4 REs in the order of frequency first and time second.

[0360] As one embodiment, the modulation symbols in the first modulation symbol group are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. The modulation symbols in the second modulation symbol group are mapped to the K4 REs in the order of frequency first and time second, starting with the earliest multicarrier symbol among the M multicarrier symbols.

[0361] As an example, the K5 modulation symbols are mapped to the K5 REs in a frequency-first, time-second order, starting with the first multicarrier symbol. The K4 modulation symbols are mapped to the K4 REs in a frequency-first, time-second order, starting with the earliest multicarrier symbol among the M multicarrier symbols.

[0362] Example 12

[0363] Example 12 illustrates a schematic diagram of the relationship between the subcarrier spacing M of the subcarriers occupied by the K REs according to an embodiment of this application and the index of the first multicarrier symbol, as shown in the attached diagram. Figure 12 As shown. In the appendix Figure 12 In the table, the first column represents the number M of multicarrier symbols included in the time-domain resources occupied by the K REs, the second column represents the subcarrier spacing of the subcarriers occupied by the K REs, and the third column represents the index value of the first multicarrier symbol.

[0364] In embodiment 12, the M multicarrier symbols in this application are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in this application among the M multicarrier symbols is one of X1 candidate index values;

[0365] For a given M, the subcarrier spacing of the subcarrier occupied by the K REs in this application is one of X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0366] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0367] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols monotonically increases with the subcarrier spacing of the subcarriers occupied by the K REs.

[0368] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols increases or remains unchanged as the subcarrier spacing of the subcarriers occupied by the K REs increases.

[0369] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols does not decrease as the subcarrier spacing of the subcarriers occupied by the K REs increases.

[0370] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols is linearly positively correlated with the subcarrier spacing of the subcarriers occupied by the K REs.

[0371] As an example, the index value of the first multicarrier symbol among the M multicarrier symbols decreases monotonically with respect to M.

[0372] As one embodiment, the index value of the first multicarrier symbol in the M multicarrier symbols decreases or remains unchanged as M increases.

[0373] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols does not increase as M increases.

[0374] As an example, the index value of the first multicarrier symbol in the M multicarrier symbols is negatively linearly correlated with the M.

[0375] As an example, for a given M, the X1 alternative index values ​​are fixed.

[0376] As an example, for a given M, the X1 alternative index values ​​are predefined.

[0377] As an example, for a given M, the X1 alternative index values ​​are configurable.

[0378] As an example, the X1 alternative index values ​​are predetermined.

[0379] As an example, the X1 alternative index values ​​are related to M.

[0380] As an example, for a given frequency range of the carriers to which the K REs belong in the frequency domain, the spacing between the X2 candidate subcarriers is fixed.

[0381] As an example, for a given frequency range of the K REs in the frequency domain, the spacing of the X2 candidate subcarriers is predefined.

[0382] As an example, the spacing between the X2 alternative subcarriers is predefined.

[0383] As one embodiment, the spacing between the X2 alternative subcarriers is configurable.

[0384] As an example, the spacing between the X2 candidate subcarriers is fixed.

[0385] As an example, the X2 alternative subcarrier spacings are 15KHz, 30KHz, 60KHz, 120KHz, and 240KHz, respectively, and X2 equals 5.

[0386] As an example, the X2 alternative subcarrier spacings are 15KHz, 30KHz, 60KHz, and 120KHz, respectively, and X2 equals 4.

[0387] As one embodiment, the correspondence between the X1 candidate index values ​​and the X2 candidate subcarrier intervals is predefined;

[0388] As one embodiment, the correspondence between the X1 candidate index values ​​and the X2 candidate subcarrier intervals is configurable;

[0389] As an example, the X3 candidate positive integers are predetermined.

[0390] As an example, the X3 candidate positive integers are fixed.

[0391] As an example, the X3 alternative positive integers are configurable.

[0392] As an example, the X3 candidate positive integers include 2, 4, 7, 14, and X3 equals 4.

[0393] As an example, the X3 candidate positive integers include 2, 4, 7, 14, 28, 56, and X3, etc., 6.

[0394] As an example, the correspondence between the X1 candidate index values ​​and the X3 candidate positive integers is predefined.

[0395] As an example, the correspondence between the X1 candidate index values ​​and the X3 candidate positive integers is fixed.

[0396] As an example, the correspondence between the X1 candidate index values ​​and the X3 candidate positive integers is configurable.

[0397] Example 13

[0398] Example 13 illustrates a structural block diagram of a processing device in a first communication node device according to an embodiment, as shown in the attached diagram. Figure 13 As shown. (Attached) Figure 13 In the first communication node equipment processing device 1300, it is mainly composed of a first transmitter module 1301 and a second transmitter module 1302. The first transmitter module 1301 includes the appendix to this application. Figure 4The transmitter 456 (including antenna 460), the transmitter processor 455, and the controller / processor 490 are included; the second transmitter module 1302 includes the appendix to this application. Figure 4 The transmitter 456 (including antenna 460), the transmitter processor 455, and the controller / processor 490 are included.

[0399] In embodiment 13, the first transmitter module 1301 transmits first information, which is used to indicate K REs. The time-domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface. The second transmitter module 1302 transmits K modulation symbols on the K REs respectively. The first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include all the modulation symbols mapped onto the first multicarrier symbol from the K modulation symbols, where K1 is a positive integer. The first bit block is processed... The output of channel coding is used to generate a target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence. The first bit block includes a positive integer number of bits. The first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1. The time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the K REs and the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0400] As an example, the second transmitter module 1302 also transmits a first wireless signal; wherein the end time of transmission of the first wireless signal is not later than the start time of transmission of the K modulation symbols, and the time interval between the end time of transmission of the first wireless signal and the start time of transmission of the K modulation symbols is a first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the time domain position of the first multicarrier symbol in the M multicarrier symbols is related to the time length of the first time interval.

[0401] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K3 REs among the K REs in the time domain are no earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and K3 REs is used to determine the number of bits included in the first bit block.

[0402] As an example, for a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0403] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there exists a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same.

[0404] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K4 REs among the K REs in the time domain are earlier than the first multicarrier symbol, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0405] As an example, the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in the M multicarrier symbols is one of X1 candidate index values;

[0406] For a given M, the subcarrier spacing of the subcarriers occupied by the K REs is one of the X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0407] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0408] Example 14

[0409] Example 14 illustrates a structural block diagram of a processing device in a second communication node device according to an embodiment, as shown in the attached diagram. Figure 14 As shown. In the appendix Figure 14 In the second communication node equipment processing device 1400, it mainly consists of a first receiver module 1401 and a second receiver module 1402. The first receiver module 1401 includes the components specified in the appendix of this application. Figure 4 The transmitter / receiver 416 (including antenna 420), receiver processor 412, and controller / processor 440 are included; the second receiver module 1402 includes the appendix to this application. Figure 4 The transmitter / receiver 416 (including antenna 420), receiver processor 412, and controller / processor 440 are included.

[0410] In embodiment 14, the first receiver module 1401 receives first information, which is used to indicate K REs. The time-domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface. The second receiver module 1402 receives K modulation symbols on the K REs respectively. The first multicarrier symbol is one of the M multicarrier symbols, and K1 modulation symbols include all the modulation symbols mapped onto the first multicarrier symbol from the K modulation symbols, where K1 is a positive integer. The first bit block is processed... The output of channel coding is used to generate a target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence. The first bit block includes a positive integer number of bits. The first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1. The time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to at least one of the subcarrier spacing of the K REs and the M, or the first information is used to indicate the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0411] As an embodiment, the second receiver module 1402 also receives a first wireless signal; wherein the end time of transmission of the first wireless signal is not later than the start time of transmission of the K modulation symbols, and the time interval between the end time of transmission of the first wireless signal and the start time of transmission of the K modulation symbols is a first time interval; for a given subcarrier spacing of the subcarriers occupied by the K REs and a given M, the time domain position of the first multicarrier symbol in the M multicarrier symbols is related to the time length of the first time interval.

[0412] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K3 REs among the K REs in the time domain are no earlier than the first multicarrier symbol, and K3 is a positive integer less than K; at least one of the number of multicarrier symbols occupied by K3 and K3 REs is used to determine the number of bits included in the first bit block.

[0413] As an example, for a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

[0414] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there exists a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; and the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same.

[0415] As an example, if the first multicarrier symbol is a multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols, the multicarrier symbols occupied by K4 REs among the K REs in the time domain are earlier than the first multicarrier symbol, the multicarrier symbols occupied by K5 REs among the K REs in the time domain are not earlier than the first multicarrier symbol, the sum of K4 and K5 is equal to K, and K4 and K5 are both positive integers; the modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group, any one of the K4 modulation symbols occupying the K4 REs belongs to the second modulation symbol group, and any one of the K5 modulation symbols occupying the K5 REs belongs to the first modulation symbol group.

[0416] As an example, the M multicarrier symbols are indexed sequentially from smallest to largest according to time sequence, and the index value of the first multicarrier symbol in the M multicarrier symbols is one of X1 candidate index values;

[0417] For a given M, the subcarrier spacing of the subcarriers occupied by the K REs is one of the X2 candidate subcarrier spacings. For each candidate subcarrier spacing in the X2 candidate subcarrier spacings, there is a candidate index value in the X1 candidate index values ​​that corresponds to this candidate subcarrier spacing.

[0418] Alternatively, for a given subcarrier spacing occupied by the K REs, M is one of X3 candidate positive integers. For each of the X3 candidate positive integers, there exists a candidate index value that corresponds to this candidate positive integer among the X1 candidate index values.

[0419] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first communication node device, the second communication node, or the UE or terminal in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC devices, NB-IoT devices, vehicle communication devices, roadside units (RSUs), aircraft, airplanes, drones, remote-controlled airplanes, and other wireless communication devices. The first communication node device in this application may also include, but is not limited to, base stations or network-side devices, including, but not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmit-receive nodes (TRPs), and other wireless communication devices.

[0420] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method used in a first communication node for wireless communication, characterized in that, include: Send first information, which is used to indicate K REs, the time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1, and the first information is transmitted through the air interface; K modulation symbols are transmitted on the K REs respectively; Wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs; the first multicarrier symbol is The M multicarrier symbols are one multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there is a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is one of the M multicarrier symbols earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is one of the M multicarrier symbols not earlier than the first multicarrier symbol; the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same; the M multicarrier symbols are M time-domain consecutive multicarrier symbols, and the first RE and the second RE occupy the same subcarrier in the frequency domain; the first information includes all or part of the domains in an SCI.

2. The method according to claim 1, characterized in that, The K3 REs among the K REs occupy no earlier than the first multicarrier symbol in the time domain, where K3 is a positive integer less than K; at least one of the K3 and the number of multicarrier symbols occupied by the K3 REs is used to determine the number of bits included in the first bit block; the first bit block is a transport block, and the number of bits included in the first bit block is the transport block size of the first bit block.

3. The method according to claim 1 or 2, characterized in that, For a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

4. The method according to claim 1, characterized in that... In the K REs, the K4 REs occupy multicarrier symbols in the time domain earlier than the first multicarrier symbol, and the K5 REs occupy multicarrier symbols in the time domain no earlier than the first multicarrier symbol. The sum of K4 and K5 is equal to K, and both K4 and K5 are positive integers. The K5 modulation symbols are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. The K4 modulation symbols are mapped to the K4 REs in the order of frequency first and time second, starting with the earliest multicarrier symbol among the M multicarrier symbols.

5. The method according to claim 4, characterized in that, The modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group. Any one of the K4 modulation symbols belongs to the second modulation symbol group, and any one of the K5 modulation symbols belongs to the first modulation symbol group.

6. The method according to claim 1, characterized in that, The modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are repetitions of the modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain.

7. The method according to claim 1, characterized in that, The time-domain position of the first multi-carrier symbol in the M multi-carrier symbols refers to the time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols.

8. The method according to claim 1, characterized in that, The K modulation symbols are mapped to virtual resource blocks after layer mapping and precoding, and then mapped to physical resource blocks. They are then sequentially generated by OFDM baseband signal generation, modulated and upconverted to obtain a second wireless signal, which is then transmitted through the air interface, which is a PC5 interface.

9. The method according to claim 1, characterized in that, The first information is transmitted via PSCCH and is used to implicitly indicate the K REs, which belong to a positive integer number of sub-channels in the frequency domain.

10. The method according to claim 1, characterized in that, The channel coding is LDPC coding, and the subcarrier spacing of the K REs is equal to one of 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, and 480KHz.

11. The method according to claim 1, characterized in that, The subcarrier spacing of the subcarriers occupied by the K REs is related to the frequency range of the carriers to which the K REs belong in the frequency domain.

12. The method according to claim 1, characterized in that, The time-domain position of the first multicarrier symbol in the M multicarrier symbols corresponds to the subcarrier spacing of the subcarriers occupied by the K REs, and the modulation symbols in the target modulation symbol sequence are mapped to the K REs starting from the first multicarrier symbol.

13. The method according to claim 1, characterized in that, The subcarrier spacing of any two REs among the K REs is equal, and the first RE and the second RE occupy the same subcarrier in the frequency domain.

14. The method according to claim 1, characterized in that, The index value of the first multicarrier symbol among the M multicarrier symbols remains unchanged.

15. The method according to claim 1, characterized in that, Whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE in the K modulation symbols are the same is irrelevant to the bits in the first bit block.

16. A method used in a second communication node for wireless communication, characterized in that, include: Receive first information, which is used to indicate K REs, the time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1, and the first information is transmitted through the air interface; K modulation symbols are received on the K REs respectively; Wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs; the first multicarrier symbol is The M multicarrier symbols are one multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there is a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is one of the M multicarrier symbols earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is one of the M multicarrier symbols not earlier than the first multicarrier symbol; the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same; the M multicarrier symbols are M time-domain consecutive multicarrier symbols, and the first RE and the second RE occupy the same subcarrier in the frequency domain; the first information includes all or part of the domains in an SCI.

17. The method according to claim 16, characterized in that, The K3 REs among the K REs occupy no earlier than the first multicarrier symbol in the time domain, where K3 is a positive integer less than K; at least one of the K3 and the number of multicarrier symbols occupied by the K3 REs is used to determine the number of bits included in the first bit block; the first bit block is a transport block, and the number of bits included in the first bit block is the transport block size of the first bit block.

18. The method according to claim 16 or 17, characterized in that, For a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

19. The method according to claim 16, characterized in that, The K4 REs among the K REs occupy multicarrier symbols earlier than the first multicarrier symbol in the time domain, and the K5 REs among the K REs occupy multicarrier symbols no earlier than the first multicarrier symbol in the time domain. The sum of K4 and K5 equals K, and both K4 and K5 are positive integers. The K5 modulation symbols are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. The K4 modulation symbols are mapped to the K4 REs in the order of frequency first and time second, starting with the earliest multicarrier symbol among the M multicarrier symbols.

20. The method according to claim 19, characterized in that, The modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group. Any one of the K4 modulation symbols belongs to the second modulation symbol group, and any one of the K5 modulation symbols belongs to the first modulation symbol group.

21. The method according to claim 16, characterized in that, The modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are repetitions of the modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain.

22. The method according to claim 16, characterized in that, The time-domain position of the first multi-carrier symbol in the M multi-carrier symbols refers to the time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols.

23. The method according to claim 16, characterized in that, The K modulation symbols are mapped to virtual resource blocks after layer mapping and precoding, and then mapped to physical resource blocks. They are then sequentially generated by OFDM baseband signal generation, modulated and upconverted to obtain a second wireless signal, which is then transmitted through the air interface, which is a PC5 interface.

24. The method according to claim 16, characterized in that, The first information is transmitted via PSCCH and is used to implicitly indicate the K REs, which belong to a positive integer number of sub-channels in the frequency domain.

25. The method according to claim 16, characterized in that, The channel coding is LDPC coding, and the subcarrier spacing of the K REs is equal to one of 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, and 480KHz.

26. The method according to claim 16, characterized in that, The subcarrier spacing of the subcarriers occupied by the K REs is related to the frequency range of the carriers to which the K REs belong in the frequency domain.

27. The method according to claim 16, characterized in that, The time-domain position of the first multicarrier symbol in the M multicarrier symbols corresponds to the subcarrier spacing of the subcarriers occupied by the K REs, and the modulation symbols in the target modulation symbol sequence are mapped to the K REs starting from the first multicarrier symbol.

28. The method according to claim 16, characterized in that, The subcarrier spacing of any two REs among the K REs is equal, and the first RE and the second RE occupy the same subcarrier in the frequency domain.

29. The method according to claim 16, characterized in that, The index value of the first multicarrier symbol among the M multicarrier symbols remains unchanged.

30. The method according to claim 16, characterized in that, Whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE in the K modulation symbols are the same is irrelevant to the bits in the first bit block.

31. A first communication node device used for wireless communication, characterized in that, include: The first transmitter module transmits first information, which is used to indicate K REs. The time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface. The second transmitter module transmits K modulation symbols on the K REs respectively; Wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs; the first multicarrier symbol is The M multicarrier symbols are one multicarrier symbol other than the earliest time-domain multicarrier symbol among the M multicarrier symbols; among the K REs, there is a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is one of the M multicarrier symbols earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is one of the M multicarrier symbols not earlier than the first multicarrier symbol; the modulation symbol occupying the first RE and the modulation symbol occupying the second RE among the K modulation symbols are the same; the M multicarrier symbols are M time-domain consecutive multicarrier symbols, and the first RE and the second RE occupy the same subcarrier in the frequency domain; the first information includes all or part of the domains in an SCI.

32. The first communication node device according to claim 31, characterized in that, The K3 REs among the K REs occupy no earlier than the first multicarrier symbol in the time domain, where K3 is a positive integer less than K; at least one of the K3 and the number of multicarrier symbols occupied by the K3 REs is used to determine the number of bits included in the first bit block; the first bit block is a transport block, and the number of bits included in the first bit block is the transport block size of the first bit block.

33. The first communication node device according to claim 31 or 32, characterized in that, For a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

34. The first communication node device according to claim 31, characterized in that... In the K REs, the K4 REs occupy multicarrier symbols in the time domain earlier than the first multicarrier symbol, and the K5 REs occupy multicarrier symbols in the time domain no earlier than the first multicarrier symbol. The sum of K4 and K5 is equal to K, and both K4 and K5 are positive integers. The K5 modulation symbols are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. The K4 modulation symbols are mapped to the K4 REs in the order of frequency first and time second, starting with the earliest multicarrier symbol among the M multicarrier symbols.

35. The first communication node device according to claim 34, characterized in that, The modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group. Any one of the K4 modulation symbols belongs to the second modulation symbol group, and any one of the K5 modulation symbols belongs to the first modulation symbol group.

36. The first communication node device according to claim 31, characterized in that, The modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are repetitions of the modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain.

37. The first communication node device according to claim 31, characterized in that, The time-domain position of the first multi-carrier symbol in the M multi-carrier symbols refers to the time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols.

38. The first communication node device according to claim 31, characterized in that, The K modulation symbols are mapped to virtual resource blocks after layer mapping and precoding, and then mapped to physical resource blocks. They are then sequentially generated by OFDM baseband signal generation, modulated and upconverted to obtain a second wireless signal, which is then transmitted through the air interface, which is a PC5 interface.

39. The first communication node device according to claim 31, characterized in that, The first information is transmitted via PSCCH and is used to implicitly indicate the K REs, which belong to a positive integer number of sub-channels in the frequency domain.

40. The first communication node device according to claim 31, characterized in that, The channel coding is LDPC coding, and the subcarrier spacing of the K REs is equal to one of 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, and 480KHz.

41. The first communication node device according to claim 31, characterized in that, The subcarrier spacing of the subcarriers occupied by the K REs is related to the frequency range of the carriers to which the K REs belong in the frequency domain.

42. The first communication node device according to claim 31, characterized in that, The time-domain position of the first multicarrier symbol in the M multicarrier symbols corresponds to the subcarrier spacing of the subcarriers occupied by the K REs, and the modulation symbols in the target modulation symbol sequence are mapped to the K REs starting from the first multicarrier symbol.

43. The first communication node device according to claim 31, characterized in that, The subcarrier spacing of any two REs among the K REs is equal, and the first RE and the second RE occupy the same subcarrier in the frequency domain.

44. The first communication node device according to claim 31, characterized in that, The index value of the first multicarrier symbol among the M multicarrier symbols remains unchanged.

45. The first communication node device according to claim 31, characterized in that, Whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE in the K modulation symbols are the same is irrelevant to the bits in the first bit block.

46. ​​A second communication node device used for wireless communication, characterized in that, include: The first receiver module receives first information, which is used to indicate K REs. The time domain resources occupied by the K REs include M multicarrier symbols, where K and M are both positive integers greater than 1. The first information is transmitted through the air interface. The second receiver module receives K modulation symbols on the K REs respectively; Wherein, the first multicarrier symbol is one of the M multicarrier symbols, and the K1 modulation symbols include all the modulation symbols in the K modulation symbols that are mapped onto the first multicarrier symbol, where K1 is a positive integer; the output of the first bit block after channel coding is used to generate the target modulation symbol sequence, where each of the K modulation symbols belongs to the target modulation symbol sequence, and the first bit block includes a positive integer number of bits; the first K2 modulation symbols in the target modulation symbol sequence include the K1 modulation symbols, where K2 is a positive integer not less than K1; the time-domain position of the first multicarrier symbol in the M multicarrier symbols is related to the subcarrier spacing of the subcarriers occupied by the K REs and at least one of the M, or the first information is used to indicate the first multicarrier symbol in the... The first multicarrier symbol is a multicarrier symbol other than the earliest multicarrier symbol in the time domain among the M multicarrier symbols; among the K REs, there is a first RE and a second RE, the multicarrier symbol occupied by the first RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is earlier than the first multicarrier symbol, and the multicarrier symbol occupied by the second RE in the time domain is a multicarrier symbol among the M multicarrier symbols that is not earlier than the first multicarrier symbol; the modulation symbol occupying the first RE and the modulation symbol occupying the second RE are the same among the K modulation symbols; the M multicarrier symbols are M consecutive multicarrier symbols in the time domain, and the first RE and the second RE occupy the same subcarrier in the frequency domain; the first information includes all or part of the domains in an SCI.

47. The second communication node device according to claim 46, characterized in that, The K3 REs among the K REs occupy no earlier than the first multicarrier symbol in the time domain, where K3 is a positive integer less than K; at least one of the K3 and the number of multicarrier symbols occupied by the K3 REs is used to determine the number of bits included in the first bit block; the first bit block is a transport block, and the number of bits included in the first bit block is the transport block size of the first bit block.

48. The second communication node device according to claim 46 or 47, characterized in that, For a given K REs and a given M, the number of modulation symbols included in the target modulation symbol sequence is related to the time-domain position of the first multicarrier symbol in the M multicarrier symbols.

49. The second communication node device according to claim 46, characterized in that... In the K REs, the K4 REs occupy multicarrier symbols in the time domain earlier than the first multicarrier symbol, and the K5 REs occupy multicarrier symbols in the time domain no earlier than the first multicarrier symbol. The sum of K4 and K5 is equal to K, and both K4 and K5 are positive integers. The K5 modulation symbols are mapped to the K5 REs in the order of frequency first and time second, starting with the first multicarrier symbol. The K4 modulation symbols are mapped to the K4 REs in the order of frequency first and time second, starting with the earliest multicarrier symbol among the M multicarrier symbols.

50. The second communication node device according to claim 49, characterized in that, The modulation symbols in the target modulation symbol sequence are sequentially divided into a first modulation symbol group and a second modulation symbol group. Any one of the K4 modulation symbols belongs to the second modulation symbol group, and any one of the K5 modulation symbols belongs to the first modulation symbol group.

51. The second communication node device according to claim 46, characterized in that, The modulation symbols transmitted by the first RE on the multi-carrier symbols occupied in the time domain are repetitions of the modulation symbols transmitted by the second RE on the multi-carrier symbols occupied in the time domain.

52. The second communication node device according to claim 46, characterized in that, The time-domain position of the first multi-carrier symbol in the M multi-carrier symbols refers to the time interval between the start time of the first multi-carrier symbol and the start time of the earliest time-domain multi-carrier symbol among the M multi-carrier symbols.

53. The second communication node device according to claim 46, characterized in that, The K modulation symbols are mapped to virtual resource blocks after layer mapping and precoding, and then mapped to physical resource blocks. They are then sequentially generated by OFDM baseband signal generation, modulated and upconverted to obtain a second wireless signal, which is then transmitted through the air interface, which is a PC5 interface.

54. The second communication node device according to claim 46, characterized in that, The first information is transmitted via PSCCH and is used to implicitly indicate the K REs, which belong to a positive integer number of sub-channels in the frequency domain.

55. The second communication node device according to claim 46, characterized in that, The channel coding is LDPC coding, and the subcarrier spacing of the K REs is equal to one of 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, and 480KHz.

56. The second communication node device according to claim 46, characterized in that, The subcarrier spacing of the subcarriers occupied by the K REs is related to the frequency range of the carriers to which the K REs belong in the frequency domain.

57. The second communication node device according to claim 46, characterized in that, The time-domain position of the first multicarrier symbol in the M multicarrier symbols corresponds to the subcarrier spacing of the subcarriers occupied by the K REs, and the modulation symbols in the target modulation symbol sequence are mapped to the K REs starting from the first multicarrier symbol.

58. The second communication node device according to claim 46, characterized in that, The subcarrier spacing of any two REs among the K REs is equal, and the first RE and the second RE occupy the same subcarrier in the frequency domain.

59. The second communication node device according to claim 46, characterized in that, The index value of the first multicarrier symbol among the M multicarrier symbols remains unchanged.

60. The second communication node device according to claim 46, characterized in that, Whether the modulation symbol occupying the first RE and the modulation symbol occupying the second RE in the K modulation symbols are the same is irrelevant to the bits in the first bit block.

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