CN111726869B

CN111726869B - Method and apparatus in a node used for wireless communication

Info

Publication number: CN111726869B
Application number: CN201910222838.8A
Authority: CN
Inventors: 刘铮; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2023-04-07
Anticipated expiration: 2039-03-22
Also published as: CN116321479A; CN111726869A

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The communication node receives a first signaling; then operating a first wireless signal, the first wireless signal occupying a first frequency domain resource in a frequency domain; the first signaling is used to determine the first frequency-domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing; there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing being used to determine the first frequency offset, the absolute value of the first frequency offset being less than the first subcarrier spacing; the operation is a reception or the operation is a transmission. The transmission performance can be improved.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a scheme and apparatus for generation of a signal or channel in wireless communication.

Background

Application scenes of a future wireless communication system are more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New air interface technology (NR) or Fifth Generation 5G is decided over 72 sessions of 3GPP (3 rd Generation Partner Project) RAN (Radio Access Network), and standardization of NR is started over 3GPP RAN #75 sessions over WI (Work Item) where NR passes. The standard formulation for NR for version 15 (R15, release 15) was frozen in the first quarter of 2019 (including NSA (Non-stand alone) networking, SA (stand alone) networking, late version (Late Drop)). In the late stage of the standard discussion of R15, the 3GPP also started the standards development and research work for Vehicle networking under the NR framework for the rapidly evolving Vehicle-to-event (V2X) service. WI establishment is expected to be performed on NR V2X at RAN #83 full meetings, and standardization work is started.

Disclosure of Invention

A significant feature of the NR system is that a more flexible mathematical structure (Numerology) including various subcarrier spacing (SCS) and CP (Cyclic Prefix) lengths can be supported to satisfy various requirements of delay time, moving speed, frequency range, etc. compared to the existing LTE system. When wireless signals supporting different subcarrier spacing (SCS) are frequency-multiplexed, if subcarriers or PRBs in a Grid (Grid) based on different subcarrier spacing satisfy a cell (Nested) structure, inter-Carrier Interference (ICI) caused by different subcarrier spacing can be reduced, and meanwhile, frequency domain resources are distributed more neatly, and resource fragmentation during scheduling is reduced. In the NR system, a Grid (Grid) corresponding to each subcarrier interval is determined by introducing a frequency Point a (Point a) as a reference frequency, where the frequency Point a may be one frequency within a Carrier (Carrier) or one frequency outside the Carrier.

The application provides a solution to the problem of frequency domain distribution of grids of different subcarrier spacings in NR systems. It should be noted that, without conflict, the embodiments and features in the embodiments in the user equipment of the present application may be applied to the base station, and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method in a first communication node used for wireless communication, characterized by comprising:

receiving a first signaling;

operating a first wireless signal occupying a first frequency domain resource in a frequency domain;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission.

As an embodiment, by introducing the first frequency offset, it is supported that the frequency domain position of the subcarrier in the grid corresponding to the first subcarrier interval is finely adjusted (which may be implemented in a baseband or in a radio frequency), so that the subcarriers in the grids with different subcarrier intervals meet a honeycomb structure, ICI when signals with different subcarrier intervals are simultaneously transmitted is reduced, transmission performance is improved, resource fragmentation is avoided, and resource utilization rate is improved.

As an embodiment, the first frequency offset is determined by the first subcarrier spacing and the reference subcarrier spacing, so that fine adjustment of frequency of subcarriers in a grid with the first subcarrier spacing based on the grid with the reference subcarrier spacing is achieved, the influence on the existing system can be minimized, and smooth coexistence with an LTE system is ensured.

According to an aspect of the application, the above method is characterized in that the difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, and the first frequency offset is linearly related to the first difference value.

According to an aspect of the present application, the above method is characterized in that the time-frequency resource occupied by the first radio signal includes a first RE, a first complex number is mapped on the first RE, and a product of a first complex symbol and a first parameter is used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

As an embodiment, the phase of the first parameter in polar coordinates is determined by the first frequency offset, so that the adjustment of the frequency position of the grid is realized by generating a baseband signal, thereby avoiding the increase of the complexity of radio frequency and ensuring better backward compatibility.

According to one aspect of the application, the method described above is characterized by further comprising: receiving a second signaling; wherein the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

According to one aspect of the present application, the above method is characterized by further comprising: receiving a third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

As an embodiment, when the second frequency offset is equal to the first alternative value, limiting the reference subcarrier spacing to be equal to a predefined subcarrier spacing further ensures system performance in coexistence with an LTE system.

According to one aspect of the present application, the above method is characterized by further comprising: receiving a fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

As an embodiment, the lowest frequency in the frequency domain resources occupied by the second sub-carrier being equal to the reference frequency ensures that grids using different sub-carrier spacings are aligned at frequency a (Piont a), thereby satisfying a cellular Structure (Nested Structure), reducing ICI and improving transmission performance when wireless signals using different sub-carrier spacings are transmitted simultaneously (frequency division multiplexing).

According to one aspect of the application, the method described above is characterized by further comprising: receiving a fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

The application discloses a method in a second communication node used for wireless communication, characterized by comprising:

sending a first signaling;

executing a first wireless signal occupying a first frequency domain resource in a frequency domain;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting.

According to one aspect of the present application, the above method is characterized by further comprising: sending a second signaling; wherein the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

According to one aspect of the application, the method described above is characterized by further comprising: sending a third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

According to one aspect of the application, the method described above is characterized by further comprising: sending a fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

According to one aspect of the present application, the above method is characterized by further comprising: sending a fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

The application discloses a first communication node device used for wireless communication, characterized by comprising:

a first receiver that receives a first signaling;

a first transceiver to operate a first wireless signal occupying a first frequency domain resource in a frequency domain;

The present application discloses a second communication node device used for wireless communication, comprising:

a first transmitter to transmit a first signaling;

a second transceiver that executes a first wireless signal occupying a first frequency domain resource in a frequency domain;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting.

As an example, the method in the present application has the following advantages:

for signals generated with one subcarrier spacing (in baseband signal generation, or at radio frequency), the carrier frequency (or zero frequency point of the baseband) is at the center frequency of one subcarrier with the subcarrier spacing, so that when signals with different subcarrier spacings are transmitted simultaneously (frequency division multiplexing), the Grid (Grid) to which the subcarriers in the signals with different subcarrier spacings belong does not satisfy the honeycomb structure if the same carrier frequency (or zero frequency point of the baseband) is used. The method ensures that the sub-carriers in the grids with different sub-carrier intervals meet the honeycomb structure by finely adjusting the frequency domain positions of the sub-carriers in the grids, reduces the ICI (inter-carrier interference) when signals with different sub-carrier intervals are transmitted simultaneously, improves the transmission performance, avoids resource fragmentation and improves the resource utilization rate.

The method of the present application performs frequency fine-tuning on subcarriers in a grid using one subcarrier spacing based on a grid of reference subcarrier spacing, can minimize the impact on the existing system, and ensures smooth coexistence with the LTE system.

The method in the present application provides the maximum flexibility by determining the reference subcarrier spacing and the grid corresponding to the reference subcarrier spacing according to the Frequency Range (FR) used and whether smooth coexistence with the LTE system is required, and further ensures system performance when coexisting with the LTE system.

Frequency a is in the frequency center of the 0 th subcarrier of the 0 th CRB (Common Resource Block) with one subcarrier spacing, which results in the frequency center of the 0 th subcarrier of the 0 th CRB in a grid with different subcarrier spacing being aligned instead of subcarrier boundary alignment, thus not satisfying the Nested Structure (Nested Structure), increasing ICI and Resource fragmentation. The method further ensures that the subcarriers with different subcarrier intervals meet a honeycomb structure by adjusting the definition of the frequency A, reduces ICI and improves transmission performance when wireless signals with different subcarrier intervals are simultaneously transmitted (frequency division multiplexing).

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow diagram of first signaling and first wireless signal transmission according to an embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

fig. 4 shows a schematic diagram of a first communication node device and a second communication node device according to an embodiment of the application;

FIG. 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application;

FIG. 6 shows a wireless signal transmission flow diagram according to another embodiment of the present application;

FIG. 7 shows a wireless signal transmission flow diagram according to another embodiment of the present application;

FIG. 8 shows a schematic diagram of a first frequency offset according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a relationship of a first complex number and a first parameter according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a target set of subcarrier spacings according to an embodiment of the application;

FIG. 11 shows a diagram of a second frequency offset according to an embodiment of the present application;

FIG. 12 shows a diagram of a reference frequency versus a second subcarrier according to an embodiment of the present application;

FIG. 13 shows a schematic diagram of a relationship of a first frequency interval and a second frequency interval according to an embodiment of the present application;

fig. 14 shows a block diagram of a processing means in a first communication node device according to an embodiment of the application;

fig. 15 shows a block diagram of a processing means in a second communication node device according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of first signaling and first wireless signal transmission according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.

In embodiment 1, a first communication node device in the present application receives a first signaling in step 101; operating a first wireless signal in step 102, the first wireless signal occupying a first frequency domain resource in the frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency separation of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is reception or the operation is transmission

As an embodiment, the first communication node device in this application is a base station device.

As an embodiment, the first communication node device in this application is a User Equipment (UE).

As an embodiment, the first communication node device in the present application is an in-vehicle device.

As an embodiment, the first communication node device in this application is a V2X (Vehicle to all) device.

As an embodiment, the second communication node device in this application is a base station device.

As an embodiment, the second communication node device in the present application is a User Equipment (UE).

As an embodiment, the second communication node device in the present application is an in-vehicle device.

As an embodiment, the second communication node device in this application is a V2X (Vehicle to all) device.

As one embodiment, the first signaling includes a PSS (Primary Synchronization Signal).

As an embodiment, the first signaling includes SSS (Secondary synchronization Signal).

As an embodiment, the first signaling comprises PSS and SSS.

As an embodiment, the first signaling is transmitted through a PBCH (Physical Broadcast Channel).

As an embodiment, the first signaling carries MIB (Master Information Block).

As an embodiment, the first signaling carries a System message (SI).

As an embodiment, the first signaling includes all or part of IE (Information Element) in a SIB (System Information Block).

As an embodiment, the first signaling includes all or part of a Field (Field) in a SIB (System Information Block).

As an embodiment, the first signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the first signaling is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first signaling carries SL-MIB (Sidelink Master Information Block, accompanied by a link Master Information Block).

As an embodiment, the first signaling is transmitted through a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, the first signaling is transmitted via SL-SS/PBCH Block (Sidelink Synchronization signaling/Physical Broadcast Channel Block) with a link Synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the first signaling is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is higher layer signaling.

As an embodiment, the first signaling includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the first signaling includes all or part of RRC (Radio Resource Control) signaling accompanying a link.

As an embodiment, the first signaling includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the first signaling includes all or part of fields (fields) in a DCI (Downlink Control Information).

As an embodiment, the first signaling includes a whole or partial Field (Field) in a DCI (Downlink Control Information) used for scheduling a companion link (Sidelink) transmission.

As an embodiment, the first signaling includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information).

As an embodiment, the first signaling is transmitted over an air interface.

As an embodiment, the first signaling is transmitted through a Uu interface.

As an embodiment, the first signaling is transmitted through a PC5 interface.

As an embodiment, the first signaling is transmitted internally within the first communication node device.

As an embodiment, the first signaling is passed from a higher layer of the first communication node apparatus to a physical layer of the first communication node apparatus.

As an embodiment, the first signaling is Configured (Configured).

As an embodiment, the first signaling is Pre-configured (Pre-configured).

As one embodiment, the first signaling indicates a frequency domain resource pool including the first frequency domain resource.

As one embodiment, the first wireless signal includes a PBCH (Physical Broadcast Channel).

For one embodiment, the first wireless signal includes a SL-BCH (Sidelink Broadcast Channel).

As an embodiment, the first wireless signal carries RMSI (Remaining System Information).

As an embodiment, the first wireless signal carries a first bit block, the first bit block comprising a positive integer number of bits.

As an embodiment, the first wireless signal includes a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first wireless signal comprises a PSCCH (Physical Sidelink Control Channel).

For one embodiment, the first radio signal includes a DL-SCH (Downlink Shared Channel).

As one embodiment, the first wireless signal includes a SL-SCH (Sidelink Shared Channel).

As an embodiment, the first wireless signal includes a PDSCH (Physical Downlink Shared Channel).

As one embodiment, the first wireless signal includes a psch (Physical Sidelink Shared Channel).

As an embodiment, the first wireless signal includes a PSFCH (Physical Sidelink Feedback Channel).

For one embodiment, the first wireless signal includes a downlink reference signal.

For one embodiment, the first wireless signal includes a companion link reference signal.

As one embodiment, the first wireless signal includes a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first wireless signal includes UL-SCH (Uplink Shared Channel).

As an embodiment, the first wireless signal includes a PUCCH (Physical Uplink Control Channel).

For one embodiment, the first wireless signal includes an uplink reference signal.

As an embodiment, the first wireless signal is generated by a signature sequence.

As one embodiment, the first wireless signal is generated by an m-sequence.

As one embodiment, the first wireless signal is generated by a Zadoff-Chu (ZC) sequence.

As an embodiment, the first wireless signal is generated by a Gold sequence.

As an embodiment, the first wireless signal may be any wireless signal transmitted in the carrier to which the first frequency domain resource belongs.

As an embodiment, the first wireless signal may be any wireless signal except a Random Access Channel (RACH) transmitted in the carrier to which the first frequency domain resource belongs.

As one embodiment, the first radio signal includes a Random Access Channel (RACH).

As one embodiment, the first wireless signal is a baseband signal.

As an embodiment, the first wireless signal is a radio frequency signal.

As an embodiment, the first wireless signal is a modulated and upconverted (Modulation and Upconversion) signal.

As an embodiment, the first wireless signal is a signal without Modulation and Upconversion.

As an embodiment, the first wireless signal is a signal before Modulation and Upconversion.

As an embodiment, the first wireless Signal is a Signal generated after OFDM Baseband Signal Generation (OFDM Baseband Signal Generation).

As an example, the above sentence "operate the first wireless signal" includes the following meanings: receiving the first wireless signal, or transmitting the first wireless signal.

As an example, the sentence "operate the first wireless signal" refers to: and transmitting the first wireless signal.

As an example, the above sentence "operate the first wireless signal" means: receiving the first wireless signal.

As an example, when the operation is receiving, the above sentence "operate a first wireless signal" means receiving the first wireless signal; when the operation is transmission, the above sentence "operate the first wireless signal" means to transmit the first wireless signal.

As an embodiment, the first frequency domain resource is Configured (Configured).

As one embodiment, the first frequency domain resource is Pre-Configured (Pre-Configured).

As one embodiment, the first frequency domain resource is a frequency domain resource used for a companion link (Sidelink).

As an embodiment, the first frequency domain Resource comprises a positive integer number of PRBs (Physical Resource Block).

As one embodiment, the first frequency domain resource includes a positive integer number of subcarriers (subcarriers).

As an embodiment, the first frequency-domain resource includes a positive integer number greater than 1 of subcarriers that are contiguous in frequency.

As an embodiment, the first frequency-domain resource comprises a positive integer number of subcarriers greater than 1 that are frequency-domain discrete.

As an example, the above sentence "the first signaling is used to determine the first frequency domain resource" means: the first signalling is used by the first communication node device to determine the first frequency domain resource.

As an example, the above sentence "the first signaling is used to determine the first frequency domain resource" means: the first signalling is used by the second communication node device to determine the first frequency domain resource.

As an example, the above sentence "the first signaling is used to determine the first frequency domain resource" means: the first signaling is used to directly indicate the first frequency domain resources.

As an embodiment, the above sentence "the first signaling is used for determining the first frequency domain resource" means that: the first signaling is used to indirectly indicate the first frequency-domain resource.

As an example, the above sentence "the first signaling is used to determine the first frequency domain resource" means: the first signaling is used to explicitly indicate the first frequency-domain resource.

As an embodiment, the above sentence "the first signaling is used for determining the first frequency domain resource" means that: the first signaling is used to implicitly indicate the first frequency-domain resource.

As an embodiment, the first subcarrier is one of subcarriers included in the first frequency-domain resource.

As an embodiment, the subcarrier spacings of the subcarriers comprised in the first frequency domain resources are all equal.

As an embodiment, the subcarrier spacings of the subcarriers comprised in the first frequency domain resource are all equal to the first subcarrier spacing.

As an embodiment, the carrier to which the first Frequency domain resource belongs is one carrier (carrier) in FR1 (Frequency Range 1).

As an embodiment, the carrier to which the first Frequency domain resource belongs is one carrier (carrier) in FR2 (Frequency Range2, frequency Range 1).

As an embodiment, the carrier to which the first frequency domain resource belongs is for only the first subcarrier spacing.

As an embodiment, only transmission of radio signals employing the first subcarrier spacing is supported in the carrier to which the first frequency-domain resource belongs.

As one embodiment, the carrier to which the first frequency domain resource belongs is for the first subcarrier spacing and subcarrier spacings other than the first subcarrier spacing.

As an embodiment, transmission of radio signals employing the first subcarrier spacing and radio signals employing subcarrier spacings other than the first subcarrier spacing is supported in the carrier to which the first frequency domain resource belongs.

As one embodiment, the carrier to which the first frequency-domain resource belongs is for the first subcarrier spacing and the reference subcarrier spacing.

As an embodiment, the carrier to which the first frequency domain resource belongs is a carrier to which a Grid (Grid) with the first subcarrier spacing belongs.

As an embodiment, the carrier to which the first frequency domain resource belongs is a carrier that can be used for downlink transmission.

As an embodiment, the carrier to which the first frequency domain resource belongs is a carrier that can be used for uplink transmission.

As an embodiment, the carrier to which the first frequency domain resource belongs is a carrier that may be used for companion link (Sidelink) transmission.

As one embodiment, the carrier to which the first frequency-domain resource belongs is Specific to the first subcarrier spacing (Specific).

As an embodiment, the first subcarrier spacing is equal to a product of 15kHz and a non-negative integer power of 2.

As one embodiment, the first subcarrier spacing is equal to one of 15kHz,30kHz,60kHz,120kHz, 240kHz.

As one embodiment, a Frequency Range (FR) to which the carrier to which the first Frequency domain resource belongs is used to determine the first subcarrier spacing.

As an embodiment, the first subcarrier may be any one of subcarriers included in the first frequency-domain resource.

As an embodiment, said X is equal to 0.

As one embodiment, X is greater than 0.

As an example, the above sentence "the frequency interval of the frequency of the first subcarrier and the frequency of the carrier to which the first frequency domain resource belongs is equal to a first frequency offset and X times the sum of the first subcarrier interval" means:

ΔΩ＝ΔΦ+X·Δf

wherein Δ Ω represents the frequency interval of the frequency of the first subcarrier and the frequency of the carrier to which the first frequency domain resource belongs, Δ Φ represents the first frequency offset, and Δ f represents the first subcarrier interval.

As one embodiment, the first frequency offset is positive.

As one embodiment, the first frequency offset is negative.

As one embodiment, the first frequency offset is not equal to 0.

As one example, the first frequency offset is in units of hertz (Hz).

As one embodiment, the first frequency offset has a unit of kilohertz (kHz).

As an embodiment, the frequency of the first subcarrier is a center frequency of the first subcarrier.

As an embodiment, the frequency of the first subcarrier is the lowest frequency of the frequency domain resources comprised by the first subcarrier.

As an embodiment, the frequency of the first subcarrier is the highest frequency in frequency domain resources comprised by the first subcarrier.

As an embodiment, the frequency of the first subcarrier is an upper bound of the frequencies comprised by the first subcarrier.

As an embodiment, the frequency of the first subcarrier is a lower bound of the frequencies comprised by the first subcarrier.

As one embodiment, a Frequency of the Carrier to which the first Frequency domain resource belongs is a Carrier Frequency (Carrier Frequency) of the Carrier to which the first Frequency domain resource belongs.

As an embodiment, the Frequency of the Carrier to which the first Frequency domain resource belongs is a Carrier Frequency (Carrier Frequency) of a modulated and upconverted (Modulation and Upconversion) of the first wireless signal.

As an embodiment, the Frequency of the Carrier to which the first Frequency domain resource belongs is the Carrier Frequency (Carrier Frequency) of the first wireless signal subjected to Modulation and up-conversion (Modulation and up-conversion) in section 5.4 of 3gpp ts38.211 (v15.4.0).

As an embodiment, the first wireless Signal is a Baseband Signal (Baseband Signal), and the frequency of the carrier to which the first frequency domain resource belongs is equal to 0Hz.

As an embodiment, the first wireless signal is a non-modulated and up-converted (Modulation and Upconversion) signal, and the frequency of the carrier to which the first frequency domain resource belongs is equal to a baseband zero frequency.

As an embodiment, the first wireless Signal is a Signal after OFDM Baseband Signal (Baseband Signal Generation) Generation, and the frequency of the carrier to which the first frequency domain resource belongs is equal to a Baseband zero frequency.

As one embodiment, the first wireless Signal is a Radio Frequency Signal (Radio Frequency Signal), and a Frequency of the Carrier to which the first Frequency domain resource belongs is equal to a Carrier Frequency (Carrier Frequency) of the Carrier to which the first Frequency domain resource belongs.

As an embodiment, the reference subcarrier spacing and the first subcarrier spacing are not equal.

As an embodiment, the reference subcarrier spacing and the first subcarrier spacing are equal.

As one embodiment, the reference subcarrier spacing is not less than the first subcarrier spacing.

As one embodiment, the reference subcarrier spacing is greater than the first subcarrier spacing.

As one embodiment, the reference subcarrier spacing is less than the first subcarrier spacing.

As an embodiment, the reference subcarrier spacing is equal to a product of 15kHz and a non-negative integer power of 2.

As one embodiment, the reference subcarrier spacing is equal to one of 15kHz,30kHz,60kHz,120kHz, 240kHz.

As one embodiment, the reference subcarrier spacing is related to a Frequency Range (FR) to which the carrier to which the first Frequency domain resource belongs.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: the first subcarrier spacing and the reference subcarrier spacing are both used to determine the first frequency offset.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: a result of a mathematical operation between the first subcarrier spacing and the reference subcarrier spacing is used to determine the first frequency offset.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: the first subcarrier spacing and the reference subcarrier spacing are used by the first communication node device to determine the first frequency offset.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: the first subcarrier spacing and the reference subcarrier spacing are used by the second communication node device to determine the first frequency offset.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: a result of a mathematical operation between the first subcarrier spacing and the reference subcarrier spacing is equal to the first frequency offset.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: a result of a mathematical operation between the first subcarrier spacing and the reference subcarrier spacing determines the first frequency offset based on a functional relationship.

As an example, the above sentence "the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset" includes the following meanings: a result of a mathematical operation between the first subcarrier spacing and the reference subcarrier spacing determines the first frequency offset based on a mapping relationship.

For one embodiment, the first receiver receives a first indication; wherein the first indication is used to indicate whether the first frequency offset is applied at a time of baseband signal generation of the first wireless signal.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 is a diagram illustrating a network architecture 200 of NR5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR5G or LTE network architecture 200 may be referred to as an EPS (Evolved Packet System) 200. The EPS200 may include one or more UE (User Equipment) 201, ng-RAN (next generation radio access Network) 202, epc (Evolved Packet Core)/5G-CN (5G-Core Network,5G Core Network) 210, hss (Home Subscriber Server) 220, and internet service 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmission reception node), or some other suitable terminology, and in a V2X network, the gNB203 may be a base station, a terrestrial base station relayed through a satellite, or a roadside Unit (RSU), or the like. The gNB203 provides an access point for the UE201 to the EPC/5G-CN210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a land vehicle, a communication unit in an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, an automotive terminal, a car networking equipment, or some other suitable terminology. The gNB203 is connected to the EPC/5G-CN210 via an S1/NG interface. The EPC/5G-CN210 includes an MME/AMF/UPF211, other MMEs/AMF/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213.MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW213. The P-GW213 provides UE IP address assignment as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include an internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS (Packet Switching) streaming service.

As an embodiment, the UE201 corresponds to the first communication node device in this application.

As an embodiment, the UE201 corresponds to the second communication node device in this application.

As an embodiment, the UE201 supports multiple subcarrier spacings.

As an embodiment, the UE201 supports transmission in a companion link.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports car networking.

As an embodiment, the UE201 supports V2X services.

As an embodiment, the gNB203 corresponds to the first communication node apparatus in this application.

As an embodiment, the gNB203 corresponds to the second communication node device in this application.

As one embodiment, the gNB203 supports multiple subcarrier spacings.

As one example, the gNB203 supports internet of vehicles.

As an embodiment, the gNB203 supports V2X services.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane and the control plane, fig. 3 showing the radio protocol architecture for a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X), or between two UEs, in 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. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above the PHY301 and is responsible for the link between the first and second communication node devices and the two UEs through the PHY301. In the user plane, the L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at a second communication node device on the network side. Although not shown, the first communication node device may have several upper layers above the 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., far end UE, server, etc.). The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides header compression for upper layer data packets to reduce radio transmission overhead, security by ciphering the data packets, and handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. In the control plane, the radio protocol architecture for the first communication node device and the second communication node device is substantially the same for the physical layer 301 and the L2 layer 305, but without header compression functionality for the control plane. The Control plane also includes a RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer). The RRC sublayer 306 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device.

As an example, the wireless protocol architecture in fig. 3 is applicable to the first communication node device in the present application.

As an example, the wireless protocol architecture in fig. 3 is applicable to the second communication node device in the present application.

As an embodiment, the first signaling in this application is generated in the RRC306.

As an embodiment, the first signaling in this application is generated in the MAC302.

As an embodiment, the first signaling in this application is generated in the PHY301.

As an embodiment, the first radio signal in this application is generated in the RRC306.

As an example, the first wireless signal in this application is generated in the MAC302.

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

As an embodiment, the second signaling in this application is generated in the RRC306.

As an embodiment, the second signaling in this application is generated in the MAC302.

As an embodiment, the second signaling in this application is generated in the PHY301.

As an embodiment, the third signaling in this application is generated in the RRC306.

As an embodiment, the third signaling in this application is generated in the MAC302.

As an embodiment, the third signaling in this application is generated in the PHY301.

As an embodiment, the fourth signaling in this application is generated in the RRC306.

As an embodiment, the fourth signaling in this application is generated in the MAC302.

As an embodiment, the fourth signaling in this application is generated in the PHY301.

As an embodiment, the fifth signaling in this application is generated in the RRC306.

As an embodiment, the fifth signaling in this application is generated in the MAC302.

As an embodiment, the fifth signaling in this application is generated in the PHY301.

Example 4

Embodiment 4 shows a schematic diagram of a first communication node device and a second communication node device according to the application, as shown in fig. 4.

Included in the first communication node device (450) are a controller/processor 490, a buffer 480, a receive processor 452, a transmitter/receiver 456 and a transmit processor 455, the transmitter/receiver 456 including an antenna 460. The data source/buffer 480 provides upper layer packets, which may include data or control information such as DL-SCH or UL-SCH or SL-SCH, to the controller/processor 490, the controller/processor 490 providing packet header compression decompression, encryption decryption, packet segmentation concatenation and reordering, and demultiplexing of the multiplexing between logical and transport channels to implement L2 and higher layer protocols for the user plane and the control plane. The transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, among others. The receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, depredialing, and physical layer control signaling extraction, among others. The transmitter 456 is configured to convert baseband signals provided from the transmit processor 455 into radio frequency signals and transmit the radio frequency signals via the antenna 460, and the receiver 456 is configured to convert radio frequency signals received via the antenna 460 into baseband signals and provide the baseband signals to the receive processor 452.

A controller/processor 440, a buffer 430, a receive processor 412, a transmitter/receiver 416 and a transmit processor 415 may be included in the second communication node device (410), the transmitter/receiver 416 including an antenna 420. The data source/buffer 430 provides upper layer packets to the controller/processor 440, and the controller/processor 440 provides packet header compression decompression, encryption decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer protocols for the user plane and the control plane. Data or control information, such as a DL-SCH or UL-SCH or SL-SCH, may be included in the upper layer packet. The transmit processor 415 implements various signal transmit processing functions for the L1 layer (i.e., physical layer) including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer signaling (including synchronization and reference signal, etc.) generation, among others. The receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., physical layer) including decoding, deinterleaving, descrambling, demodulation, depredialing, and physical layer signaling extraction, among others. The transmitter 416 is configured to convert the baseband signal provided by the transmit processor 415 into a radio frequency signal and transmit the radio frequency signal via the antenna 420, and the receiver 416 is configured to convert the radio frequency signal received by the antenna 420 into a baseband signal and provide the baseband signal to the receive processor 412.

In DL (Downlink), an upper layer packet such as upper layer information included in the first signaling, the second signaling, the third signaling, the fourth signaling and the fifth signaling (if the first signaling, the second signaling, the third signaling, the fourth signaling and the fifth signaling are transmitted through a Downlink in the present application) and a first wireless signal (if the first wireless signal is transmitted through a Downlink and includes upper layer information) are provided to the controller/processor 440. Controller/processor 440 performs the functions of the L2 layer and above. In the DL, the controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication node device 450 based on various priority metrics. The controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication node device 450, such as the first signaling, second signaling, third signaling, fourth signaling, and higher layer information (if included) included in the fifth signaling, all generated in the controller/processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulating, power control/allocation, precoding, and physical layer control signaling generation, etc., the first signaling, the second signaling, the third signaling, the fourth signaling, and the fifth signaling in this application, and the physical layer signal generation of the first radio signal in this application are all completed in the transmit processor 415, the generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and/or multi-carrier symbol, and then the parallel streams are mapped to the antenna 420 via the transmitter 416 to be transmitted in the form of radio frequency signals, and the first frequency offset in this application can be implemented when generating multi-carrier symbols of a baseband or when generating radio frequency signals. On the receive side, each receiver 456 receives a radio frequency signal through its respective antenna 460, and each receiver 456 recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to the receive processor 452. The receive processor 452 implements various signal receive processing functions of the L1 layer. The signal reception processing functions include reception of physical layer signals for the first, second, third, fourth and fifth signaling, etc. in this application, demodulation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)) over multicarrier symbols in a multicarrier symbol stream, followed by descrambling, decoding and deinterleaving to recover data or control transmitted by the second communications node device 410 over a physical channel, followed by providing the data and control signals to the controller/processor 490. The controller/processor 490 is responsible for the L2 layer and above, and the controller/processor 490 interprets the first, second, third, fourth and fifth signaling herein and the higher layer information (if included) included in the first radio signal herein. The controller/processor can be associated with a memory 480 that stores program codes and data. Memory 480 may be referred to as a computer-readable medium.

In an Uplink (UL) transmission, a data source/buffer 480 is used to provide higher layer data to controller/processor 490. The data source/buffer 480 represents the L2 layer and all protocol layers above the L2 layer. The controller/processor 490 implements L2 layer protocols for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the second communication node 410. The controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication node 410. If the first wireless signal in this application is transmitted via uplink and includes higher layer information (e.g., UL-SCH or UCI), the first wireless signal in this application is generated at the data source/buffer 480 or at the controller/processor 490. The transmission processor 455 implements various signal transmission processing functions for the L1 layer (i.e., physical layer), and if the first wireless signal in this application is transmitted through an uplink and includes only physical layer information (such as an uplink reference signal), a wireless signal in this application is generated at the transmission processor 455. The signal transmission processing functions include coding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and modulation of the baseband signal based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)), splitting the modulation symbols into parallel streams and mapping each stream to a respective multi-carrier subcarrier and/or multi-carrier symbol, which are then mapped by the transmit processor 455 to the antenna 460 via the transmitter 456 for transmission as a radio frequency signal. Receivers 416 receive radio frequency signals through their respective antennas 420, each receiver 416 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to receive processor 412. Receive processor 412 performs various signal reception processing functions for the L1 layer (i.e., the physical layer) including receiving a physical layer signal that processes the first wireless signal in this application, including obtaining a stream of multicarrier symbols, then demodulating the multicarrier symbols in the stream of multicarrier symbols based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)), then decoding and deinterleaving to recover the data and/or control signals originally transmitted by first communication node device 450 over the physical channel. The data and/or control signals are then provided to a controller/processor 440. The L2 layer functions, including the interpretation of information carried by the first wireless signal in this application, are performed at the controller/processor 440. The controller/processor can be associated with a buffer 430 that stores program codes and data. The buffer 430 may be a computer-readable medium.

In companion link (Sidelink) transmission, upper layer packets, such as upper layer information included in the first signaling, second signaling, third signaling, fourth signaling, and fifth signaling in the present application (if the first signaling, second signaling, third signaling, fourth signaling, and fifth signaling in the present application are transmitted through a companion link and include the upper layer information) and first wireless signals (if the first wireless signals are transmitted through a companion link and include the upper layer information, such as SL-SCH), are provided to controller/processor 440, and controller/processor 440 performs the functions of L2 layer and layers above L2 layer. In companion link transmission, controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels. Controller/processor 440 is also responsible for HARQ operations (if supported), retransmission, and signaling to user equipment 450. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., where physical layer signals of the first signaling, the second signaling, the third signaling, the fourth signaling, and the fifth signaling are generated at the transmit processor 415, and where physical layer signals of the first radio signal are generated at the transmit processor 415. The modulation symbols are divided into parallel streams and each stream is mapped to a respective multi-carrier subcarrier and/or multi-carrier symbol and then transmitted as radio frequency signals by a transmit processor 415 via a transmitter 416 to an antenna 420. On the receive side, each receiver 456 receives a radio frequency signal through its respective antenna 460, and each receiver 456 recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to a receive processor 452. The reception processor 452 implements various signal reception processing functions of the L1 layer. The signal reception processing functions include reception of physical layer signals of the first, second, third, fourth and fifth signaling in this application, reception of physical layer signaling of the first wireless signal (if the first wireless signal is transmitted through the second communication node 410) in this application, and the like, demodulation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)) through multicarrier symbols in a multicarrier symbol stream, followed by descrambling, decoding and deinterleaving to recover data or control transmitted by the second communication node device 410 on a physical channel, followed by providing the data and control signals to the controller/processor 490. The controller/processor 490 implements the L2 layer and layers above the L2 layer, and the controller/processor 490 interprets the upper layer information included in the first signaling, the second signaling, the third signaling, the fourth signaling, and the fifth signaling (if the first signaling, the second signaling, the third signaling, the fourth signaling, and the fifth signaling in this application are transmitted through the companion link and include the upper layer information) and the first wireless signal (if the first wireless signal is transmitted through the second communication node 410 and includes the upper layer information, such as the SL-SCH) in this application. The controller/processor can be associated with a buffer 480 that stores program codes and data. The buffer 480 may be referred to as a computer-readable medium.

As an embodiment, the first communication node device 450 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first communication node apparatus 450 apparatus at least: receiving a first signaling; operating a first wireless signal, the first wireless signal occupying a first frequency domain resource in a frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission.

As an embodiment, the first communication node device 450 comprises: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first signaling; operating a first wireless signal occupying a first frequency domain resource in a frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission.

As an embodiment, the second communication node device 410 apparatus comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication node device 410 means at least: sending a first signaling; executing a first wireless signal occupying a first frequency domain resource in a frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency separation of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting.

As an embodiment, the second communication node device 410 comprises: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling; executing a first wireless signal occupying a first frequency domain resource in a frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting.

As an example, the first communication node device 450 is a User Equipment (UE).

As an embodiment, the first communication node apparatus 450 is a base station apparatus (gNB/eNB).

As an embodiment, the first communication node device 450 is a vehicle-mounted device (V2X UE).

For one embodiment, the second communication node device 410 is a User Equipment (UE).

As an embodiment, the second communication node device 410 is a base station device (gNB/eNB).

As an embodiment, the second communication node device 410 is a vehicle-mounted device (V2X UE).

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first signaling.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the second signaling.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the third signaling.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the fourth signaling.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the fifth signaling.

For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first wireless signal.

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

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the first signaling in this application.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the second signaling described herein.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the third signaling described herein.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the fourth signaling in this application.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the fifth signaling in this application.

For one embodiment, receiver 416 (including antenna 420), receive processor 412, and controller/processor 440 are used to receive the first wireless signal described herein.

For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are used to transmit the first wireless signal in this application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the steps in the dashed box are optional, and it is specifically illustrated that the sequence in this example does not limit the sequence of signal transmission and the sequence of implementation in this application.

For theSecond communication node N1The fourth signaling is transmitted in step S11, the third signaling is transmitted in step S12, the second signaling is transmitted in step S13, the fifth signaling is transmitted in step S14, the first signaling is transmitted in step S15, and the first radio signal is transmitted in step S16.

ForFirst communication node U2The fourth signaling is received in step S21, the third signaling is received in step S22, the second signaling is received in step S23, the fifth signaling is received in step S24, and the fifth signaling is received in step S25First signaling, a first wireless signal is received in step S26.

In embodiment 5, the first wireless signal occupies a first frequency domain resource in the frequency domain; the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings; the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value; the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, the Y being an integer not less than zero; the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

As an embodiment, the second signaling is transmitted through a PBCH (Physical Broadcast Channel).

As an embodiment, the second signaling carries MIB (Master Information Block).

As an embodiment, the second signaling carries a System message (SI).

As an embodiment, the second signaling includes all or part of IE (Information Element) in a SIB (System Information Block).

As an embodiment, the second signaling includes all or part of a Field (Field) in a SIB (System Information Block).

As an embodiment, the second signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the second signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the second signaling is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the second signaling carries SL-MIB (Sidelink Master Information Block, accompanied by a link Master Information Block).

As an embodiment, the second signaling is transmitted through a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, the second signaling is transmitted via SL-SS/PBCH Block (Sidelink Synchronization signaling/Physical Broadcast Channel Block) with link Synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the second signaling is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the second signaling is physical layer signaling.

As an embodiment, the second signaling is higher layer signaling.

As an embodiment, the second signaling includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the second signaling includes all or part of RRC (Radio Resource Control) signaling accompanying the link.

As an embodiment, the second signaling includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the second signaling includes all or part of fields (fields) in a DCI (Downlink Control Information).

As an embodiment, the second signaling includes all or part of a Field (Field) in a DCI (Downlink Control Information) used for scheduling companion link (Sidelink) transmission.

As an embodiment, the second signaling includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information).

As an embodiment, the second signaling is transmitted over an air interface.

As an embodiment, the second signaling is transmitted through a Uu interface.

As an embodiment, the second signaling is transmitted through a PC5 interface.

As an embodiment, the second signaling includes part or all of signaling "scs-specific carrier rlist" in 3gpp ts38.331 (v15.4.0).

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling directly indicates the reference subcarrier spacing in the target set of subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling indirectly indicates the reference subcarrier spacing in the target set of subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling explicitly indicates the reference subcarrier spacing in the target set of subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling implicitly indicates the reference subcarrier spacing in the target set of subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signalling is used by the first communication node device in the present application to determine the reference subcarrier spacing in the target set of subcarrier spacings.

As an embodiment, the above sentence "the second signaling is used for determining the reference subcarrier spacing in the target subcarrier spacing set" includes the following meaning: the second signaling is used by the second communication node device in the present application to determine the reference subcarrier spacing in the target set of subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling indicates M subcarrier spacings in the target set of subcarrier spacings, where M is a positive integer greater than 1, where M is not greater than the number of subcarrier spacings included in the target set of subcarrier spacings, where any one subcarrier spacing of the M subcarrier spacings is one carrier spacing of the target set of subcarrier spacings, and where the reference subcarrier spacing is the largest subcarrier spacing of the M subcarrier spacings.

As an example, the above sentence "the second signaling is used to determine the reference subcarrier spacing in the target set of subcarrier spacings" includes the following meanings: the second signaling indicates M subcarrier spacings in the target set of subcarrier spacings, where M is a positive integer greater than 1, where M is not greater than the number of subcarrier spacings included in the target set of subcarrier spacings, where any one subcarrier spacing of the M subcarrier spacings is one carrier spacing of the target set of subcarrier spacings, and where the reference subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings.

As an embodiment, the third signaling is transmitted through a PBCH (Physical Broadcast Channel).

As an embodiment, the third signaling carries MIB (Master Information Block).

As an embodiment, the third signaling carries a System message (SI).

As an embodiment, the third signaling includes all or part of IE (Information Element) in a SIB (System Information Block).

As an embodiment, the third signaling includes all or part of a Field (Field) in a SIB (System Information Block).

As an embodiment, the third signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the third signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the third signaling is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the third signaling carries SL-MIB (Sidelink Master Information Block, accompanied by a link Master Information Block).

As an embodiment, the third signaling is transmitted through a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, the third signaling is transmitted through SL-SS/PBCH Block (Sidelink Synchronization signaling/Physical Broadcast Channel Block) accompanied by a link Synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the third signaling is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the third signaling is physical layer signaling.

As an embodiment, the third signaling is higher layer signaling.

As an embodiment, the third signaling includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the third signaling includes all or part of RRC (Radio Resource Control) signaling accompanying a link.

As an embodiment, the third signaling includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the third signaling includes all or part of fields (fields) in a DCI (Downlink Control Information).

As an embodiment, the third signaling includes a whole or partial Field (Field) in a DCI (Downlink Control Information) used for scheduling accompanying link (Sidelink) transmission.

As an embodiment, the third signaling includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information).

As an embodiment, the third signaling is transmitted over an air interface.

As an embodiment, the third signaling is transmitted through a Uu interface.

As an embodiment, the third signaling is transmitted through a PC5 interface.

As an embodiment, the third signaling comprises a Field (Field) "frequency shift7p5khz" in IE (Information Element ) "frequency info ul" in 3gpp ts38.331 (v15.4.0).

As an embodiment, the third signaling is used to indicate whether there is a frequency offset of 7.5kHz between uplink transmissions in the first carrier and the grid of LTE.

As an embodiment, the third signaling includes a Field (Field) in "uplinktxdiretcurrentbwp" in an IE (Information Element) in 3gpp ts38.331 (v15.4.0) "uplinktxdiretcurrentlist" shift7dot 5kHz.

As an embodiment, the third signaling is used to indicate whether there is a frequency offset of 7.5kHz between a Direct Current (Direct Current) Subcarrier (Subcarrier) of the transmitter and the center frequency of the indicated Subcarrier.

As an example, the above sentence "the third signaling is used to determine the second frequency offset" includes the following meanings: the third signaling is used by the first communication node device in the present application to determine the second frequency offset.

As an example, the above sentence "the third signaling is used to determine the second frequency offset" includes the following meanings: the third signaling is used to directly indicate the second frequency offset.

As an example, the above sentence "the third signaling is used to determine the second frequency offset" includes the following meanings: the third signaling is used to indirectly indicate the second frequency offset.

As an example, the above sentence "the third signaling is used to determine the second frequency offset" includes the following meanings: the third signaling is used to explicitly indicate the second frequency offset.

As an example, the above sentence "the third signaling is used to determine the second frequency offset" includes the following meanings: the third signaling is used to implicitly indicate the second frequency offset.

Example 6

Embodiment 6 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in fig. 6. In fig. 6, the steps in the dashed box are optional, and it is specifically illustrated that the sequence in this example does not limit the sequence of signal transmission and the sequence of implementation in this application.

For theSecond communication node N3The fourth signaling is transmitted in step S31, the third signaling is transmitted in step S32, the second signaling is transmitted in step S33, the fifth signaling is transmitted in step S34, the first signaling is transmitted in step S35, and the first wireless signal is received in step S36.

For theFirst communication node U4The fourth signaling is received in step S41, the third signaling is received in step S42, the second signaling is received in step S43, the fifth signaling is received in step S44, the first signaling is received in step S45, and the first wireless signal is transmitted in step S46.

In embodiment 6, the first wireless signal occupies a first frequency domain resource in the frequency domain; the first signaling is used to determine the first frequency-domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings; the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value; the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, the Y being an integer not less than zero; the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

As an embodiment, the fourth signaling is transmitted through a PBCH (Physical Broadcast Channel).

As an embodiment, the fourth signaling carries MIB (Master Information Block).

As an embodiment, the fourth signaling carries a System message (SI).

As an embodiment, the fourth signaling includes all or part of IE (Information Element) in a SIB (System Information Block).

As an embodiment, the fourth signaling includes all or part of fields (fields) in a SIB (System Information Block).

As an embodiment, the fourth signaling is transmitted through a PDCCH (Physical Downlink Control Channel).

As an embodiment, the fourth signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the fourth signaling is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the fourth signaling carries SL-MIB (Sidelink Master Information Block, accompanied by a link Master Information Block).

As an embodiment, the fourth signaling is transmitted through a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, the fourth signaling is transmitted through SL-SS/PBCH Block (Sidelink Synchronization signaling/Physical Broadcast Channel Block) along with the link Synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the fourth signaling is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the fourth signaling is physical layer signaling.

As an embodiment, the fourth signaling is higher layer signaling.

As an embodiment, the fourth signaling includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the fourth signaling includes all or part of RRC (Radio Resource Control) signaling accompanying the link.

As an embodiment, the fourth signaling includes all or part of a MAC (Medium Access Control) layer signaling.

As an embodiment, the fourth signaling includes all or part of fields (fields) in a DCI (Downlink Control Information).

As an embodiment, the fourth signaling includes a whole or partial Field (Field) in a DCI (Downlink Control Information) used for scheduling accompanying link (Sidelink) transmission.

As an embodiment, the fourth signaling includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information).

As an embodiment, the fourth signaling is transmitted over an air interface.

As an embodiment, the fourth signaling is transmitted through a Uu interface.

As an embodiment, the fourth signaling is transmitted through a PC5 interface.

As an embodiment, the fourth signaling is transmitted over a companion link.

As an example, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signalling is used by the first communication node device in the present application to determine the reference frequency.

As an example, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signalling is used by the second communication node device in the present application to determine the reference frequency.

As an embodiment, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signaling is used to directly indicate the reference frequency.

As an embodiment, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signaling is used to indirectly indicate the reference frequency.

As an example, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signaling is used to explicitly indicate the reference frequency.

As an embodiment, the above sentence "the fourth signaling is used to determine the reference frequency" includes the following meanings: the fourth signaling is used to implicitly indicate the reference frequency.

For one embodiment, the fourth signaling comprises a "k" carried by a synchronized broadcast Block (SS/PBCH Block) _SSB "indicates.

As an embodiment, the fourth signaling comprises signaling "offsetttopointa".

For one embodiment, the fourth signaling comprises "k" carried by a synchronized broadcast Block (SS/PBCH Block) _SSB "indication and signaling" offsetttopointa ".

As an embodiment, the fifth signaling carries a System Information (SI).

As an embodiment, the fifth signaling includes all or part of IE (Information Element) in a SIB (System Information Block).

As an embodiment, the fifth signaling includes all or part of a Field (Field) in a SIB (System Information Block).

As an embodiment, the fifth signaling includes all or part of RMSI (Remaining System Information).

As an embodiment, the fifth signaling is transmitted through a PSCCH (Physical downlink Control Channel).

As an embodiment, the fifth signaling is transmitted through a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the fifth signaling carries SL-MIB (Sidelink Master Information Block, accompanied by a link Master Information Block).

As an embodiment, the fifth signaling is transmitted through a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, the fifth signaling is transmitted through SL-SS/PBCH Block (Sidelink Synchronization signaling/Physical Broadcast Channel Block) along with the link Synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the fifth signaling is transmitted through a psch (Physical Sidelink Shared Channel).

As an embodiment, the fifth signaling is physical layer signaling.

As an embodiment, the fifth signaling is a higher layer signaling.

As an embodiment, the fifth signaling includes all or part of a Radio Resource Control (RRC) signaling.

As an embodiment, the fifth signaling includes all or part of RRC (Radio Resource Control) signaling accompanying a link.

As an embodiment, the fifth signaling includes a whole or partial Field (Field) in a DCI (Downlink Control Information) used for scheduling accompanying link (Sidelink) transmission.

As an embodiment, the fifth signaling includes a Field (Field) of all or part of SCI (Sidelink Control Information, accompanied by link Control Information).

As an embodiment, the fifth signaling is transmitted over an air interface.

As an embodiment, the fifth signaling is transmitted through a Uu interface.

As an embodiment, the fifth signaling is transmitted through a PC5 interface.

As an embodiment, the fifth signaling is transmitted on a companion link.

As an embodiment, the above sentence "the fifth signaling is used to determine the first and second frequency-domain intervals" includes the following meaning: the fifth signaling is used by the first communication node device in the present application to determine the first frequency domain interval and the second frequency domain interval.

As an embodiment, the above sentence "the fifth signaling is used to determine the first and second frequency-domain intervals" includes the following meaning: the fifth signaling is used by the second communication node device in the present application to determine the first frequency domain interval and the second frequency domain interval.

As an example, the above sentence "the fifth signaling is used to determine the first frequency-domain interval and the second frequency-domain interval" includes the following meanings: the fifth signaling is used to directly indicate the first frequency-domain interval and the second frequency-domain interval.

As an example, the above sentence "the fifth signaling is used to determine the first frequency-domain interval and the second frequency-domain interval" includes the following meanings: the fifth signaling is used to indirectly indicate the first frequency-domain interval and the second frequency-domain interval.

As an example, the above sentence "the fifth signaling is used to determine the first frequency-domain interval and the second frequency-domain interval" includes the following meanings: the fifth signaling is used to explicitly indicate the first frequency-domain interval and the second frequency-domain interval.

As an example, the above sentence "the fifth signaling is used to determine the first frequency-domain interval and the second frequency-domain interval" includes the following meanings: the fifth signaling is used to implicitly indicate the first frequency-domain interval and the second frequency-domain interval.

As an embodiment, the fifth signaling comprises a synchronized broadcast block (SS/PB)CH Block)' k _SSB "indicates.

As an embodiment, the fifth signaling includes a part or all of "scs-specific carrier rlist" IE (Information Element).

As an embodiment, the fifth signaling includes a part or all of "scs-specific carrier" IE (Information Element).

Example 7

Embodiment 7 illustrates a wireless signal transmission flow diagram according to another embodiment of the present application, as shown in fig. 7. In fig. 7, the steps in the dashed box are optional, and it is specifically illustrated that the sequence in this example does not limit the sequence of signal transmission and the sequence of implementation in this application.

To another oneUser equipment N5In step S51, a first wireless signal is received.

For theFirst communication node U6The fourth signaling is received in step S61, the third signaling is received in step S62, the second signaling is received in step S63, the fifth signaling is received in step S64, the first signaling is received in step S65, and the first radio signal is transmitted in step S66.

In embodiment 7, the first wireless signal occupies a first frequency domain resource in the frequency domain; the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency separation of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings; the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value; the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, the Y being an integer not less than zero; the fifth signaling is used to determine a first frequency interval for the first subcarrier spacing and a second frequency interval for the reference subcarrier spacing, the frequency interval of the center frequency of the first frequency interval and the reference frequency being equal to a first frequency interval, the frequency interval of the center frequency in the second frequency interval and the reference frequency being equal to a second frequency interval, the difference of the first frequency interval and the second frequency interval being used to determine the X.

As an embodiment, the second signaling is transmitted internally within the first communication node device.

As an embodiment, the second signaling is passed from a higher layer of the first communication node device to a physical layer of the first communication node device.

As an embodiment, the second signaling is Configured (Configured).

As an embodiment, the second signaling is Pre-configured (Pre-configured).

As an embodiment, the third signaling is transmitted internally within the first communication node device.

As an embodiment, the third signaling is passed from a higher layer of the first communication node device to a physical layer of the first communication node device.

As an embodiment, the third signaling is Configured (Configured).

As an embodiment, the third signaling is Pre-configured (Pre-configured).

As an embodiment, the fourth signaling is transmitted internally within the first communication node device.

As an embodiment, said fourth signalling is passed from a higher layer of said first communication node device to a physical layer of said first communication node device.

As an embodiment, the fourth signaling is Configured (Configured).

As an embodiment, the fourth signaling is Pre-configured (Pre-configured).

As an embodiment, the fifth signaling is transmitted inside the first communication node device.

As an embodiment, said fifth signalling is passed from a higher layer of said first communication node device to a physical layer of said first communication node device.

As an embodiment, the fifth signaling is Configured (Configured).

As an embodiment, the fifth signaling is Pre-configured (Pre-configured).

As an embodiment, the fifth signaling and the second signaling are transmitted through two different signaling.

As an embodiment, the fifth signaling and the second signaling are transmitted through two same signaling.

Example 8

Embodiment 8 illustrates a schematic diagram of a first frequency offset according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the horizontal axis represents frequency, each rectangle represents a subcarrier with one subcarrier spacing, each cross-line filled rectangle represents one subcarrier other than the first subcarrier in the first frequency domain resource, and the slashed rectangle represents the first subcarrier.

In embodiment 8, the first wireless signal in this application occupies a first frequency domain resource in the frequency domain; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, and the first frequency offset is linearly related to the first difference value.

As an example, the above sentence "the first frequency offset and the first difference are linearly related" includes the following meanings: the first frequency offset and the first difference are linearly positively correlated.

As an example, the above sentence "the first frequency offset and the first difference are linearly related" includes the following meanings: the first frequency offset and the first difference are linearly inversely related.

As an example, the above sentence "the first frequency offset and the first difference are linearly related" includes the following meanings: the first frequency offset is equal to half the first difference.

As an example, the above sentence "the first frequency offset and the first difference are linearly related" includes the following meanings: the first frequency offset is equal to half the negative first difference.

As an embodiment, the first frequency offset is obtained by:

wherein Δ Φ represents the first frequency offset,

represents the first subcarrier spacing, is present>

Representing the reference subcarrier spacing.

As an embodiment, the first frequency offset is obtained by:

wherein Δ Φ represents the first frequency offset,

represents the first subcarrier spacing, is present>

Representing the reference subcarrier spacing.

Example 9

Embodiment 9 illustrates a schematic diagram of the relationship of the first complex number and the first parameter according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the horizontal axis represents time, the vertical axis represents frequency, each filled rectangle represents one RE other than the first RE in the time-frequency resources occupied by the first radio signal, and the slashed rectangle represents the first RE.

In embodiment 9, the time-frequency resource occupied by the first radio signal in this application includes a first RE, a first complex number is mapped on the first RE, and a product of a first complex symbol and a first parameter is used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo 1, and the first frequency offset in this application is used to determine the phase of the first parameter in polar coordinates.

As an embodiment, the first RE (Resource Element) occupies one overloaded symbol in the time domain, and the first RE (Resource Element) occupies one subcarrier in the frequency domain.

As an embodiment, a subcarrier spacing of subcarriers occupied by the first RE (Resource Element) in a frequency domain is equal to the first subcarrier spacing.

As an embodiment, the first RE (Resource Element) occupies one OFDM (Orthogonal Frequency Division Multiplexing) Symbol (Symbol) in the time domain, and the first RE (Resource Element) occupies one subcarrier in the Frequency domain.

As an example, the above sentence "the first complex number is mapped on the first RE" means: the first complex number is mapped on the first RE (Resource Element) through Resource Mapping (Resource Mapping).

As an example, the above sentence "the first complex number is mapped on the first RE" means: the first complex number is mapped on the first RE (Resource Element) through Resource Mapping (Resource Mapping) of 6.3.1.6 section and 6.3.1.7 section in 3GPP ts38.211 (v15.4.0).

As an example, the above sentence "the first complex number is mapped on the first RE" means: according to a Channel or Signal (Channel/Signal) included in the first wireless Signal, the first complex number is mapped on the first RE (Resource Element) through Mapping to Physical Resources (Mapping to Physical Resources) of a corresponding section in 3gpp ts 38.211.

As an embodiment, a product of the first complex symbol and the first parameter is equal to the first complex number.

As an embodiment, a product of the first complex symbol and the first parameter is not equal to the first complex number.

As an embodiment, the first parameter is sign independent of the first complex number.

As an embodiment, the first parameter is independent of the content carried by the first complex symbol.

As an embodiment, the first parameter is independent of bit content carried by the first complex symbol.

As an embodiment, the first parameter is independent of information carried by the first wireless signal.

For one embodiment, the information carried by the first wireless signal includes higher layer information.

As one embodiment, the information carried by the first wireless signal includes physical layer information.

As an embodiment, the information carried by the first wireless signal includes physical layer information and higher layer information.

As an embodiment, the information carried by the first wireless signal includes a Transport Block (TB).

As an embodiment, the Information carried by the first wireless signal includes DCI (Downlink Control Information).

As an embodiment, the information carried by the first wireless signal includes RRC signaling.

As one embodiment, the information carried by the first wireless signal includes MAC signaling.

As an embodiment, the Information carried by the first wireless signal includes UCI (Uplink Control Information).

As one embodiment, the first wireless signal is generated by a first signature sequence, the information carried by the first wireless signal includes an index of the first signature sequence, and the first signature sequence is an m-sequence.

As an embodiment, the first wireless signal is generated by a first signature sequence, the information carried by the first wireless signal includes an index of the first signature sequence, and the first signature sequence is a Gold sequence.

As an embodiment, the first wireless signal is generated by a first signature sequence, the information carried by the first wireless signal includes an index of the first signature sequence, and the first signature sequence is a Zadoff-Chu (ZC) sequence.

As an example, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first wireless Signal includes a first Transport Block (TB, transport Block), which sequentially undergoes CRC addition (CRC inspection), channel Coding (Channel Coding), rate Matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer Mapping (Layer Mapping), and Precoding (Precoding) to obtain a first complex symbol sequence, where the first complex symbol is one of complex symbols in the first complex symbol sequence, the complex symbols in the first complex symbol sequence are sequentially mapped to Virtual Resource Blocks (Mapping to Virtual Resource Blocks), and mapped to Physical Resource Blocks (Mapping to Physical Resource Blocks) from the Virtual Resource Blocks, and an OFDM Baseband Signal is generated (OFDM base and Signal), and the first wireless Signal is obtained after Modulation Upconversion (Modulation).

As an example, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first wireless Signal includes a first Transport Block (TB, transport Block), which sequentially undergoes CRC addition (CRC inspection), segmentation (Segmentation), coding Block level CRC addition (CRC inspection), channel Coding (Channel Coding), rate Matching (Rate Matching), concatenation (Concatenation), scrambling (Scrambling), modulation (Modulation), layer Mapping (Layer Mapping), precoding (Precoding) to obtain a first complex symbol sequence, where the first complex symbol is one of the first complex symbol sequence, and the complex symbols in the first complex symbol sequence are sequentially mapped to a Virtual Resource Block (Virtual Resource Blocks) and are then mapped to a Physical Resource Block (Virtual Resource Block), an OFDM Baseband Signal is generated (OFDM base band Signal), and the first wireless Signal is obtained after being modulated by the first Transport Block (TB, transport Block) and the first frequency conversion line.

As an embodiment, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first wireless Signal includes a first Transport Block (TB, transport Block), which sequentially undergoes CRC addition (CRC inspection), channel Coding (Channel Coding), rate Matching (Rate Matching), scrambling (Scrambling), modulation (Modulation), layer Mapping (Layer Mapping), transform Precoding (Transform Precoding), precoding (Precoding) to obtain a first complex symbol sequence, where the first complex symbol is one of the first complex symbol sequence, the complex symbols in the first complex symbol sequence are sequentially mapped to Virtual Resource Blocks (OFDM Baseband resources), and mapped to Physical Resource Blocks (Virtual Resource Blocks), and an OFDM Baseband Signal is generated (OFDM Baseband Signal) and obtained after Modulation up-conversion (Modulation and frequency conversion) of the first wireless Signal.

As an embodiment, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first wireless Signal includes a first Transport Block (TB, transport Block), which sequentially undergoes CRC addition (CRC inspection), segmentation (Segmentation), coding Block level CRC addition (CRC inspection), channel Coding (Channel Coding), rate Matching (Rate Matching), concatenation (Concatenation), scrambling (Scrambling), modulation (Modulation), layer Mapping (Layer Mapping), transform Precoding (Transform Precoding), precoding (Precoding) to obtain a first complex symbol sequence, where the first complex symbol is one of the first complex symbol sequence, the complex symbols in the first complex symbol sequence are sequentially mapped to Virtual Resource Blocks (Virtual Resource Blocks), and the first radio Signal Block is generated after Mapping to a Physical Resource Block (OFDM) and modulating the OFDM Resource Block (Baseband Resource Block), and the first radio Signal Block (OFDM) is generated.

As an embodiment, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first wireless Signal includes a first bit block, where the first bit block sequentially undergoes CRC addition (CRC Insertion), channel Coding (Channel Coding), rate Matching (Rate Matching), scrambling (Scrambling), and Modulation (Modulation) to obtain a first complex symbol sequence, where the first complex symbol is one of the first complex symbol sequence, and the complex symbol in the first complex symbol sequence is sequentially mapped to a Physical resource (Mapping Physical Resources), OFDM base band Signal Generation (OFDM base and Signal Generation), and Modulation up-conversion (Modulation and up-conversion) to obtain the first wireless Signal.

As an example, the above sentence "the information carried by the first wireless signal is used to generate the first complex symbol" includes the following meanings: the information carried by the first radio Signal includes a first bit block, where the first bit block is subjected to Sequence Generation (Sequence Generation) to obtain a first complex symbol Sequence, the first complex symbol is one complex symbol in the first complex symbol Sequence, and the complex symbols in the first complex symbol Sequence are sequentially mapped to Physical Resources (Mapping to Physical Resources), OFDM Baseband Signal Generation (OFDM base and Signal Generation), and Modulation and Upconversion (Modulation and Upconversion) to obtain the first radio Signal.

As an example, the above sentence "the first frequency offset is used to determine the phase of the first parameter at polar coordinates" includes the following meanings: the first frequency offset is used by the first communication node device in the present application to determine a phase of the first parameter in polar coordinates.

As an example, the above sentence "the first frequency offset is used to determine the phase of the first parameter at polar coordinates" includes the following meanings: the first frequency offset is used by the second communication node device in the present application to determine a phase of the first parameter in polar coordinates.

As an example, the first complex number is obtained by:

wherein the content of the first and second substances,

represents the first plurality of symbols, < >>

Is representative of said first parameter or parameters and,

represents said first frequency offset, -is greater than or equal to>

Δf，μ ₀ ，μ，/>

T _C ，/>

The definitions of k, l follow the corresponding definitions in section 5.3.1 of 3gpp ts38.211 (v15.4.0), respectively.

As an example, the first complex number is obtained by:

wherein, the first and the second end of the pipe are connected with each other,

represents said first complex symbol, -is selected based on the number of symbols in the symbol block>

Is representative of said first parameter or parameters and,

representing the amount of said first frequency offset,

Δf，μ ₀ ，μ，/>

T _C ，/>

k，l，K，Δf _RA ，k ₁ ，

n _RA ，/>

the definitions of (a) follow the corresponding definitions in section 5.3.2 of 3gpp ts38.211 (v15.4.0), respectively.

As an example, the first complex number is obtained by:

wherein the content of the first and second substances,

Is representative of said first parameter or parameters and,

represents the first frequency offset, -is greater than or equal to>

Δf，μ ₀ ，μ，/>

T _C ，/>

The definition of k, l modifies the corresponding definition in section 5.3.1 of 3gpp ts38.211 (v15.4.0) for Downlink (Downlink) or Uplink (Uplink) to companion link (Sidelink), respectively.

As an example, the first complex number is obtained by:

represents the first plurality of symbols, < >>

Is representative of said first parameter or parameters and,

represents a representation of the first frequency offset and,

Δf，μ ₀ ，μ，/>

T _C ，/>

Example 10

Embodiment 10 shows a schematic diagram of a target subcarrier spacing set according to an embodiment of the present application, shown in fig. 10. In fig. 10, the target subcarrier spacing set includes subcarrier spacing #1, subcarrier spacing #2 and reference subcarrier spacing.

In embodiment 10, the reference subcarrier spacing in this application is equal to one subcarrier spacing in a target subcarrier spacing set, the target subcarrier spacing set includes a positive integer number of subcarrier spacings greater than 1, and the second signaling in this application is used to determine the reference subcarrier spacing in the target subcarrier spacing set; the position in the frequency domain of the carrier to which the first frequency domain resource belongs in this application is used to determine the target set of subcarrier spacings.

As an embodiment, M subcarrier spacings are preconfigured (Pre-configure) in the target subcarrier spacing set, where M is a positive integer greater than 1, where M is not greater than the number of subcarrier spacings included in the target subcarrier spacing set, where any one of the M subcarrier spacings is one of the target subcarrier spacing set, and the reference subcarrier spacing is a largest subcarrier spacing of the M subcarrier spacings.

As an embodiment, M subcarrier spacings are preconfigured (Pre-configured) in the target set of subcarrier spacings, where M is a positive integer greater than 1, the M is not greater than the number of subcarrier spacings included in the target set of subcarrier spacings, any one subcarrier spacing of the M subcarrier spacings is one carrier spacing of the target set of subcarrier spacings, and the reference subcarrier spacing is the smallest subcarrier spacing of the M subcarrier spacings.

As one embodiment, the reference subcarrier spacing is Configured (Configured) in the target subcarrier spacing set.

As one embodiment, the reference subcarrier spacing is pre-configured (preconfigurated) in the target set of subcarrier spacings.

As an embodiment, any two subcarrier spacings in the target set of subcarrier spacings are not equal.

As one embodiment, the target set of subcarrier spacings is {15kHz,30kHz,60kHz }, or the target set of subcarrier spacings is {60kHz,120kHz }.

As one embodiment, the target set of subcarrier spacings is {15kHz,30kHz,60kHz }, or the target set of subcarrier spacings is {60kHz,120kHz,240kHz }.

For one embodiment, the target set of subcarrier spacings is {15kHz,30kHz }, or the target set of subcarrier spacings is {60kHz,120kHz }.

As an embodiment, the above definition "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: an index of a frequency Band (Band) to which the carrier to which the first frequency domain resource belongs.

As an embodiment, the above definition "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: an ordering of a frequency Band (Band) to which the carrier to which the first frequency domain resource belongs.

As an embodiment, the above definition of "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: a Frequency Range (FR) to which the carrier to which the first Frequency domain resource belongs.

As an embodiment, the above definition "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: an ARFCN (Absolute Radio Frequency Channel Number) of the carrier to which the first Frequency domain resource belongs.

As an embodiment, the above definition of "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: an EARFCN (E-UTRA Absolute Radio Frequency Channel Number, absolute Radio Channel Number) of the carrier to which the first Frequency domain resource belongs.

As an embodiment, the above definition "the position of the carrier to which the first frequency domain resource belongs in the frequency domain" refers to: an NR-ARFCN (New Radio Absolute Radio Frequency Channel Number, absolute Radio Channel Number) of the carrier to which the first Frequency domain resource belongs.

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: when the carrier to which the first Frequency-domain resource belongs to Frequency Range1 (FR 1, frequency Range 1), the target set of subcarrier spacings is {15kHz,30kHz,60kHz }; the target set of subcarrier spacings is {60kHz,120kHz } when the carrier to which the first Frequency-domain resource belongs to Frequency Range2 (FR 2).

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: the target set of subcarrier spacings is {15khz,30khz } when the carrier to which the first Frequency-domain resource belongs to Frequency Range1 (FR 1, frequency Range 1); the target set of subcarrier spacings is {60kHz,120kHz } when the carrier to which the first Frequency-domain resource belongs to Frequency Range2 (FR 2).

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: when the carrier to which the first Frequency-domain resource belongs to Frequency Range1 (FR 1, frequency Range 1), the target set of subcarrier spacings is {15kHz,30kHz,60kHz }; the target set of subcarrier spacings is {60kHz,120kHz,240kHz } when the carrier to which the first Frequency-domain resource belongs to Frequency Range2 (FR 2, frequency Range 2)

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used by the first communication node device in this application to determine the target set of subcarrier spacings.

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used by the second communication node device in this application to determine the target set of subcarrier spacings.

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used to determine the target subcarrier spacing set according to a mapping relationship.

As an embodiment, the above sentence "the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used for determining the target subcarrier spacing set" includes the following meanings: the position of the carrier to which the first frequency domain resource belongs in the frequency domain is used to determine the target subcarrier spacing set according to the correspondence.

Example 11

Embodiment 11 illustrates a schematic diagram of a second frequency offset according to an embodiment of the present application, as shown in fig. 11. In fig. 11, the horizontal axis represents frequency and each rectangle represents a subcarrier, and in case a, the second frequency offset is equal to the first alternative value; in case B the second frequency offset is equal to a second alternative value, which is equal to 0.

In embodiment 11, the second frequency offset in this application is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing in this application is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

As an example, said first alternative value is equal to 7.5kHz.

As an embodiment, the first alternative value is predefined.

As an embodiment, the first alternative value is fixed.

For one embodiment, the first alternative value is configurable.

As an example, said first alternative value is equal to 0kHz.

As an example, said second alternative value is equal to 7.5kHz.

As an embodiment, the second alternative value is predefined.

As an example, the second alternative value is fixed.

For one embodiment, the second alternative value is configurable.

As an example, said second alternative value is equal to 0kHz.

As an example, the above sentence "when the second frequency offset is equal to the first alternative value, the reference subcarrier spacing is equal to a predefined subcarrier spacing" includes the following meanings: for the carrier to which the first frequency domain resource belongs, the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

As an example, the above sentence "when the second frequency offset is equal to the first alternative value, the reference subcarrier spacing is equal to a predefined subcarrier spacing" includes the following meanings: the reference subcarrier spacing is equal to a predefined subcarrier spacing when the third signaling indicates that the second frequency offset is equal to the first alternative value.

As an example, the above sentence "when the second frequency offset is equal to the first alternative value, the reference subcarrier spacing is equal to a predefined subcarrier spacing" includes the following meanings: for a Frequency Range (FR) to which the carrier to which the first Frequency-domain resource belongs, the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second Frequency offset is equal to the first alternative value.

As an example, the above sentence "when the second frequency offset is equal to the first alternative value, the reference subcarrier spacing is equal to a predefined subcarrier spacing" includes the following meaning: for Frequency ranges outside a Frequency Range (FR) to which the carrier to which the first Frequency domain resource belongs, the reference subcarrier spacing is configured when the second Frequency offset is equal to the first alternative value.

As an example, the above sentence "when the second frequency offset is equal to the first alternative value, the reference subcarrier spacing is equal to a predefined subcarrier spacing" includes the following meanings: for Frequency ranges outside of a Frequency Range (FR) to which the carrier to which the first Frequency domain resource belongs, the reference subcarrier spacing is configured by the second signaling in this application when the second Frequency offset is equal to the first alternative value.

As an embodiment, when the second frequency offset is equal to the second alternative value, the reference subcarrier spacing is equal to that configured by the second signaling in this application.

As an embodiment, the predefined subcarrier spacing is equal to 15kHz.

As an embodiment, the predefined subcarrier spacing is equal to 60kHz.

As an embodiment, the predefined subcarrier spacing is fixed.

As one embodiment, a Frequency Range (FR) to which the carrier to which the first Frequency-domain resource belongs is used to determine the predefined subcarrier spacing.

As one embodiment, the predefined subcarrier spacing is fixed given a Frequency Range (FR) to which the carrier to which the first Frequency-domain resource belongs.

As an embodiment, when the carrier to which the first Frequency-domain resource belongs to Frequency Range1 (FR 1, frequency Range 1), the predefined subcarrier spacing is equal to 15kHz; the predefined subcarrier spacing is equal to 60kHz when the carrier to which the first Frequency-domain resource belongs to Frequency Range2 (FR 2).

As one embodiment, the second frequency offset is a frequency offset value of a Channel grid (Channel Raster).

As one embodiment, the second frequency offset is a frequency offset value of a Channel grid (Channel rate) of channels employing the reference subcarrier spacing.

Example 12

Embodiment 12 is a diagram illustrating a relationship between a reference frequency and a second subcarrier according to an embodiment of the present application, as shown in fig. 12. In fig. 12, each rectangle represents one subcarrier, in case a, the slashed-filled rectangles represent second subcarriers, the cross-slashed-filled rectangles represent first subcarriers, and the subcarrier spacing of the second subcarriers is equal to the first subcarrier spacing; in case B, the cross-hatched filled rectangles represent the second subcarriers, the cross-hatched filled rectangles represent the first subcarriers, and the subcarrier spacing of the second subcarriers is not equal to the first subcarrier spacing.

In embodiment 12, the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency in this application; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing in this application, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

As an embodiment, the first receiver receives a second indication used to indicate that the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency, or the second indication is used to indicate that the center frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency.

As an embodiment, the reference frequency is a frequency Point a (Point a).

As an embodiment, the reference frequency is one of the carriers to which the first frequency-domain resource belongs.

As an embodiment, the reference frequency is a frequency other than the carrier to which the first frequency-domain resource belongs.

As an embodiment, the reference frequency is an absolute frequency.

As an example, the reference frequency is a frequency represented by an ARFCN.

As an example, the reference frequency is a frequency represented by EARFCN.

As an example, the reference frequency is a frequency represented by an NR-ARFCN.

As an embodiment, the second subcarrier is a virtual subcarrier.

As an embodiment, the second subcarrier is a virtual subcarrier outside the frequency domain resources occupied by the carrier to which the first frequency domain resources belong.

As an embodiment, the second subcarrier is a real subcarrier.

As an embodiment, the frequency domain resources occupied by the second subcarriers belong to the frequency domain resources occupied by the carriers to which the first frequency domain resources belong.

As an embodiment, the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing.

As an embodiment, the subcarrier spacing of the second subcarrier is not equal to the first subcarrier spacing.

As an embodiment, said Y is equal to 0.

As one embodiment, Y is greater than 0.

As an embodiment, when the subcarrier spacing of the second subcarrier is not equal to the first subcarrier spacing, the frequency spacing of the center frequency of the second subcarrier and the carrier frequency of the carrier to which the first frequency domain resource belongs is equal to the sum of a second frequency offset and P times the subcarrier spacing of the second subcarrier, where P is a non-negative integer; a difference between the subcarrier spacing of the second subcarrier and the reference subcarrier spacing is equal to a second difference value, and the second frequency offset is linearly related to the second difference value.

As an embodiment, when the subcarrier spacing of the second subcarrier is equal to the reference subcarrier spacing, the frequency spacing of the center frequency of the second subcarrier and the carrier frequency of the carrier to which the first frequency domain resource belongs is equal to the sum of Q times the reference subcarrier spacing, and Q is a non-negative integer.

Example 13

Embodiment 13 illustrates a schematic diagram of the relationship of a first frequency interval and a second frequency interval according to an embodiment of the present application, as shown in fig. 13. In fig. 13, the horizontal axis represents frequency, the diagonal-filled rectangles represent first frequency domain sections, and the cross-filled rectangles represent second frequency domain sections.

In embodiment 13, the first frequency-domain interval is for the first subcarrier spacing and the second frequency-domain interval is for the reference subcarrier spacing, the frequency separation of the center frequency of the first frequency-domain interval and the reference frequency is equal to a first frequency interval, the frequency separation of the center frequency in the second frequency-domain interval and the reference frequency is equal to a second frequency interval, and the difference between the first frequency interval and the second frequency interval is used to determine the X.

As one embodiment, the first frequency-domain interval includes frequency-domain contiguous frequency-domain resources.

As an embodiment, the first frequency domain interval includes a positive integer number of subcarriers that are contiguous in the frequency domain.

As an embodiment, the first frequency domain interval includes a positive integer number of subcarriers with the first subcarrier spacing that are consecutive in frequency domain.

As an embodiment, the second frequency-domain interval includes frequency-domain contiguous frequency-domain resources.

As an embodiment, the second frequency domain interval includes a positive integer number of subcarriers that are contiguous in the frequency domain.

As an embodiment, the second frequency domain interval includes a positive integer number of subcarriers with the reference subcarrier spacing that are consecutive in the frequency domain.

As an example, the above sentence "the first frequency domain interval is for the first subcarrier spacing" includes the following meanings: the first frequency domain interval comprises a positive integer number of subcarriers with the first subcarrier interval, which are continuous in frequency domain.

As an example, the above sentence "the first frequency domain interval is for the first subcarrier spacing" includes the following meanings: the first frequency-domain interval is the first subcarrier spacing-Specific (Specific).

As an embodiment, the above sentence "the first frequency-domain interval is for the first subcarrier spacing" includes the following meaning: the first frequency-domain interval is configured for the first subcarrier spacing by the fifth signaling.

As an embodiment, the above sentence "the first frequency-domain interval is for the first subcarrier spacing" includes the following meaning: the first frequency-domain interval and the first subcarrier spacing are configured together.

As an example, the above sentence "the second frequency domain interval is for the reference subcarrier spacing" includes the following meanings: the second frequency domain interval comprises a positive integer of subcarriers with the reference subcarrier spacing which are continuous in frequency domain.

As an example, the above sentence "the second frequency domain interval is for the reference subcarrier spacing" includes the following meanings: the second frequency-domain interval is the reference subcarrier spacing Specific (Specific).

As an example, the above sentence "the second frequency domain interval is for the reference subcarrier spacing" includes the following meanings: the second frequency-domain interval is configured for the reference subcarrier spacing by the fifth signaling.

As an example, the above sentence "the second frequency domain interval is for the reference subcarrier spacing" includes the following meanings: the second frequency-domain interval is configured with the reference subcarrier spacing.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: said difference between said X and said first and second frequency intervals is linearly dependent.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: said X is monotonically increasing with said difference of said first frequency interval and said second frequency interval.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: said X is monotonically decreasing with said difference between said first frequency interval and said second frequency interval.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meaning: the difference of the first frequency interval and the second frequency interval determines the X based on a functional relationship.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: the difference of the first frequency interval and the second frequency interval determines the X based on a mapping.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: the difference of the first frequency interval and the second frequency interval is used by the first communication node device in the present application to determine the X.

As an example, the above sentence "the difference between the first frequency interval and the second frequency interval is used to determine the X" includes the following meanings: the difference of the first frequency interval and the second frequency interval is used by the second communication node device in the present application to determine the X.

As an embodiment, the difference of the first frequency interval and the second frequency interval is calculated by:

wherein

Represents the first frequency interval->

Represents the second frequency interval>

Equal to 12, μ represents the index of the first subcarrier spacing, μ ₀ Index, Δ f, representing the reference subcarrier spacing ^μ Represents the first subcarrier spacing, is present>

Represents the reference sub-carrier spacing and, device for combining or screening>

And

represents the start frequency and the section length, respectively, of the first frequency-domain section>

And &>

A start frequency and an interval length, respectively, of the second frequency-domain interval, the fifth signaling being used for determining ^ and ^ the>

And

as an embodiment, the difference of the first frequency interval and the second frequency interval is used to determine that X is calculated by:

wherein the content of the first and second substances,

k represents that the first subcarrier belongs toAn index in the Grid (Grid) of the Carrier (Carrier),

is equal to 12, is greater than or equal to>

Is representative of the first frequency interval and,

represents the second frequency interval, mu represents the index of the first subcarrier interval, mu ₀ Index, Δ f, representing the reference subcarrier spacing ^μ Represents the first subcarrier spacing, is present>

Represents the spacing of the reference sub-carriers, device for selecting or keeping>

And &>

Respectively representing the first frequency domain interval start frequency and interval length,

and &>

A start frequency and an interval length, respectively, of the second frequency-domain interval, the fifth signaling being used for determining ÷ or-based>

And &>

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus in a first communication node device according to an embodiment, as shown in fig. 14. In fig. 14, a first communication node device processing apparatus 1400 comprises a first receiver 1401 and a first transceiver 1402. The first receiver 1401 comprises the transmitter/receiver 456 (including the antenna 460), the receive processor 452, and the controller/processor 490 of fig. 4 of the present application; the first transceiver 1402 includes the transmitter/receiver 456 (including the antenna 460), the transmit processor 455, the receive processor 452, and the controller/processor 490 of fig. 4 of the present application.

In embodiment 14, the first receiver 1401 receives a first signaling; the first transceiver 1402 operates on a first wireless signal occupying a first frequency domain resource in the frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission.

As an embodiment, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, and the first frequency offset is linearly related to the first difference value.

As an embodiment, the time-frequency resource occupied by the first radio signal includes a first RE, a first complex number is mapped on the first RE, and a product of a first complex symbol and a first parameter is used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo equal to 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

As an example, the first receiver 1401 receives the second signaling; wherein the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

As an example, the first receiver 1401 receives the third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternative value and the second alternative value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

As an example, the first receiver 1401 receives the fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

As an example, the first receiver 1401 receives the fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarriers is equal to the first subcarrier spacing, the center frequency of the second subcarriers and the center frequency of the first subcarriers are equal to Y times the first subcarrier spacing, the Y being an integer not less than zero; the first receiver 1401 receives the fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

Example 15

Embodiment 15 illustrates a block diagram of a processing device in a second communication node apparatus according to an embodiment, as shown in fig. 15. In fig. 15, the second communication node device processing apparatus 1500 comprises a first transmitter 1501 and a second transceiver 1502. The first transmitter 1501 includes the transmitter/receiver 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application; the second transceiver 1502 includes the transmitter/receiver 416 (including the antenna 420), the receive processor 412, the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application.

In embodiment 15, the first transmitter 1501 transmits first signaling; the second transceiver 1502 executes a first wireless signal occupying a first frequency domain resource in the frequency domain; wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, and the absolute value of the first frequency offset is smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting.

As an example, the above sentence "execute the first wireless signal" includes the following meanings: receiving the first wireless signal, or transmitting the first wireless signal.

As an example, the sentence "execute the first wireless signal" mentioned above means: receiving the first wireless signal.

As an example, the sentence "execute the first wireless signal" mentioned above means: and transmitting the first wireless signal.

As an example, when the performing is receiving, the above sentence "performing a first wireless signal" means receiving the first wireless signal; when the execution is transmission, the above sentence "execute first wireless signal" means to transmit the first wireless signal.

As an embodiment, the time-frequency resource occupied by the first radio signal includes a first RE, a first complex number is mapped on the first RE, and a product of a first complex number symbol and a first parameter is used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo equal to 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

As an example, the first transmitter 1501 sends the second signaling; wherein the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

As an example, the first transmitter 1501 transmits the third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

As an example, the first transmitter 1501 transmits the fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

As an example, the first transmitter 1501 transmits the fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, the Y being an integer not less than zero; the first transmitter 1501 transmits the fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The first type of communication node device or the UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, a network card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control plane, and other wireless communication devices. The second type of communication node device or base station or network side device in this application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first communications node device for wireless communications, comprising:

a first receiver receiving a first signaling and receiving a second signaling;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in a frequency domain, and a subcarrier interval of the first subcarrier is equal to a first subcarrier interval; a frequency separation of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

2. The first communications node device of claim 1, wherein a difference between said first subcarrier spacing and said reference subcarrier spacing is equal to a first difference value, said first frequency offset and said first difference value being linearly related.

3. The first communications node device of any of claims 1 or 2, wherein the time-frequency resources occupied by the first radio signal include a first RE on which a first complex number is mapped, the product of a first complex symbol and a first parameter being used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo equal to 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

4. The first communications node device of any of claims 1 to 3, wherein the first receiver receives third signalling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

5. The first communication node apparatus of any of claims 1 to 4, wherein the first receiver receives fourth signalling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

6. The first communications node device of claim 5, wherein said first receiver receives fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.

7. A second communications node device for wireless communications, comprising:

a first transmitter for transmitting a first signaling and transmitting a second signaling;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

8. The second communications node device of claim 7, wherein the difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, and wherein the first frequency offset is linearly related to the first difference value.

9. The second communications node device according to claim 7 or 8, wherein the time-frequency resources occupied by the first radio signal include a first RE, a first complex number is mapped on the first RE, and a product of a first complex symbol and a first parameter is used to generate the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

10. Second communication node device according to any of claims 7 to 9, wherein the first transmitter sends a third signalling;

wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternative value and the second alternative value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

11. Second communication node device according to any of claims 7 to 10, wherein the first transmitter is arranged to transmit a fourth signalling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

12. The second communication node apparatus of claim 11,

the first transmitter transmits a fifth signaling; wherein the fifth signaling is used to determine a first frequency interval for the first subcarrier spacing and a second frequency interval for the reference subcarrier spacing, the frequency interval of the center frequency of the first frequency interval and the reference frequency being equal to a first frequency interval, the frequency interval of the center frequency in the second frequency interval and the reference frequency being equal to a second frequency interval, the difference of the first frequency interval and the second frequency interval being used to determine the X.

13. A method in a first communication node used for wireless communication, comprising:

receiving a first signaling and receiving a second signaling;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency interval of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier interval, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the operation is a reception or the operation is a transmission; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

14. The method in a first communication node according to claim 13, characterised in that the difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, the first frequency offset and the first difference value being linearly related.

15. The method in a first communication node according to claim 13 or 14, wherein the time-frequency resources occupied by the first radio signal comprise first REs, on which a first complex number is mapped, the product of a first complex symbol and a first parameter being used for generating the first complex number; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo equal to 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

16. The method in a first communication node according to any of claims 13 to 15, further comprising: receiving a third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

17. The method in a first communication node according to any of claims 13 to 16, further comprising: receiving a fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

18. The method in a first communication node according to claim 17, further comprising: receiving a fifth signaling; wherein the fifth signaling is used to determine a first frequency interval for the first subcarrier spacing and a second frequency interval for the reference subcarrier spacing, the frequency interval of the center frequency of the first frequency interval and the reference frequency being equal to a first frequency interval, the frequency interval of the center frequency in the second frequency interval and the reference frequency being equal to a second frequency interval, the difference of the first frequency interval and the second frequency interval being used to determine the X.

19. A method in a second communication node used for wireless communication, comprising:

sending a first signaling and sending a second signaling;

wherein the first signaling is used to determine the first frequency domain resource; a first subcarrier belongs to the first frequency domain resource in the frequency domain, and the subcarrier interval of the first subcarrier is equal to the first subcarrier interval; a frequency separation of a frequency of the first subcarrier and a frequency of a carrier to which the first frequency domain resource belongs is equal to a sum of a first frequency offset and X times the first subcarrier spacing, the X being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, the first subcarrier spacing and the reference subcarrier spacing are used to determine the first frequency offset, the absolute value of the first frequency offset being smaller than the first subcarrier spacing; the performing is receiving or the performing is transmitting; the reference subcarrier spacing is equal to one subcarrier spacing in a target set of subcarrier spacings comprising a positive integer number of subcarrier spacings greater than 1, the second signaling being used to determine the reference subcarrier spacing in the target set of subcarrier spacings; the position in the frequency domain of the carrier to which the first frequency domain resource belongs is used to determine the target set of subcarrier spacings.

20. The method in a second communication node according to claim 19, wherein the difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference value, and wherein the first frequency offset is linearly related to the first difference value.

21. The method in a second communication node according to claim 19 or 20, wherein the time-frequency resources occupied by the first radio signal comprise first REs on which first complex numbers are mapped, the product of a first complex symbol and a first parameter being used for generating the first complex numbers; information carried by the first wireless signal is used to generate the first complex symbol; the first parameter is a complex number modulo equal to 1, and the first frequency offset is used to determine the phase of the first parameter in polar coordinates.

22. The method in a second communication node according to any of claims 19 to 21, further comprising: sending a third signaling; wherein the third signaling is used to determine a second frequency offset; the second frequency offset is equal to a first alternative value, or the second frequency offset is equal to a second alternative value; the first alternative value and the second alternative value are not equal; the reference subcarrier spacing is equal to a predefined subcarrier spacing when the second frequency offset is equal to the first alternative value.

23. The method in a second communication node according to any of claims 19 to 22, further comprising: sending a fourth signaling; wherein the fourth signaling is used to determine a reference frequency; the lowest frequency in the frequency domain resources occupied by the second subcarrier is equal to the reference frequency; when the subcarrier spacing of the second subcarrier is equal to the first subcarrier spacing, the center frequency of the second subcarrier and the center frequency of the first subcarrier are equal to Y times the first subcarrier spacing, and Y is an integer not less than zero.

24. The method in a second communication node according to claim 23, further comprising: sending a fifth signaling; wherein the fifth signaling is used to determine a first frequency-domain interval for the first subcarrier spacing and a second frequency-domain interval for the reference subcarrier spacing, a frequency separation of a center frequency of the first frequency-domain interval and the reference frequency being equal to a first frequency interval, a frequency separation of a center frequency in the second frequency-domain interval and the reference frequency being equal to a second frequency interval, a difference of the first frequency interval and the second frequency interval being used to determine the X.