CN111769920A

CN111769920A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN111769920A
Application number: CN201910261792.0A
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: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-10-13
Anticipated expiration: 2039-04-02
Also published as: CN115664616A; CN111769920B

Abstract

A method and arrangement in a communication node for wireless communication is disclosed. The communication node receives a first signaling; receiving a second signaling; operating a first wireless signal occupying a first set of subcarriers in a frequency domain; the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, and the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the operation is a reception or the operation is a transmission. The method and the device reduce interference and improve transmission performance.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to transmission methods and apparatus in wireless communication systems, and more particularly, to schemes and apparatus for frequency domain location of signals or channels in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and 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, New Radio) (or fine Generation, 5G) is decided on 3GPP (3rd Generation partnership project, third Generation partnership project) RAN (Radio Access Network) #72 sessions, and standardization Work on NR starts on 3GPP RAN #75 sessions where WI (Work Item ) of NR has passed. The NR standard for version 15 (R15, Release15) was formulated to freeze 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 the internet of vehicles under the NR framework for the highly evolved Vehicle-to-electrical (V2X) service. WI project was performed on NR V2X at RAN #83 full meeting and standardization was 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 a frequency within a Carrier (Carrier) or a frequency outside the Carrier.

The present application provides a solution to the problem of the distribution of subcarriers in the NR system in the frequency domain. 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;

receiving a second signaling;

operating a first wireless signal occupying a first set of subcarriers in a frequency domain;

wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the operation is a reception or the operation is a transmission.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain is not fixed, which ensures the flexibility of the distribution of Grid (Grid) in the frequency domain when different subcarrier intervals are configured, so that the frequency domain distribution of the subcarrier meets the requirements of a Channel Raster (Channel Raster) and an NR-ARFCN.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain is determined through the second signaling, so that grid distribution when different subcarrier intervals are adopted can be adjusted according to the requirement of network deployment (such as whether coexistence with LTE is required or not), inter-subcarrier interference is reduced, and link and system performance is improved.

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 target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain is determined based on the first frequency offset and the target subcarrier spacing set, so that a frequency offset is introduced between a frequency point a (point a) and an NR-ARFCN of a Grid (Grid) with a 15kHz subcarrier spacing, thereby ensuring the consistency of Grid distribution and providing the possibility of smooth coexistence with LTE when the target subcarrier spacing set only includes a subcarrier spacing of 15kHz and a channel Grid of subcarriers in NR or a corresponding NR-ARFCN is shifted by 7.5kHz in the frequency domain.

According to an aspect of the application, the above method is characterized in that the first communication node cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier spacings comprised in the target set of subcarrier spacings is larger than 1.

According to an aspect of the present application, the method is characterized in that the carrier to which the first subcarrier set belongs is a first carrier, and a frequency range of the first carrier in the frequency domain is used to determine a relative position relationship between the reference frequency and the reference subcarrier in the frequency domain.

receiving a fourth signaling;

wherein the fourth signaling is used to determine the first set of subcarriers.

According to an aspect of the present application, the above method is characterized in that, when the reference frequency is equal to a boundary frequency of the reference subcarrier, a frequency interval between a frequency of the first subcarrier and a frequency of a carrier to which the first subcarrier set belongs is equal to a sum of a second frequency offset and Y times the first subcarrier interval, the Y being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference, the second frequency offset is linearly related to the first difference, and an absolute value of the second frequency offset is smaller than the first subcarrier spacing.

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 equal to 1, and the second frequency offset is used to determine the phase of the first parameter in polar coordinates.

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

sending a first signaling;

sending a second signaling;

performing a first wireless signal occupying a first set of subcarriers in a frequency domain;

wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the performing is transmitting or the performing is receiving.

sending a third signaling;

According to an aspect of the application, the above method is characterized in that the receiver of the third signaling cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1.

sending a fourth signaling;

wherein the fourth signaling is used to determine the first set of subcarriers.

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

a first receiver receiving a first signaling;

a second receiver receiving a second signaling;

a first transceiver to operate a first wireless signal occupying a first set of subcarriers in a frequency domain;

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

a first transmitter for transmitting a first signaling;

a second transmitter for transmitting a second signaling;

a second transceiver that executes a first wireless signal occupying a first set of subcarriers in a frequency domain;

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

the method in the present application ensures flexibility of the distribution of Grid (Grid) in frequency domain when different subcarrier spacing is configured, so that the frequency domain distribution of subcarriers meets the requirements of Channel Raster and NR-ARFCN.

The method in the application can adjust the grid distribution when different subcarrier intervals are adopted according to the network deployment requirement (such as whether coexistence with LTE is needed or not), reduce the inter-subcarrier interference and improve the link and system performance.

The method in the present application enables the introduction of a frequency offset (which can be switched) between the frequency points a (point a) and NR-ARFCN of a Grid (Grid) with 15kHz subcarrier spacing, so that when only the 15kHz subcarrier spacing is configured and the channel Grid of subcarriers in NR or the corresponding NR-ARFCN is shifted by 7.5kHz in the frequency domain, the consistency of Grid distribution is ensured, and the possibility of smooth coexistence with LTE is provided.

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, second 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 shows a wireless signal transmission flow diagram according to an 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 relationship between a reference frequency and a reference subcarrier according to an embodiment of the present application;

fig. 9 shows a schematic diagram of the relationship between a first frequency offset, a target subcarrier spacing set, a reference frequency and a reference subcarrier according to an embodiment of the present application;

fig. 10 shows a schematic diagram of the relationship between a first carrier, a reference frequency and a reference subcarrier according to an embodiment of the present application;

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

FIG. 12 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. 13 shows a block diagram of a processing means in a first communication node device according to an embodiment of the application;

fig. 14 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, second 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; receiving second signaling in step 102; operating a first wireless signal in step 103, the first wireless signal occupying a first set of subcarriers in the frequency domain; the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the operation is a reception or the operation is a 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 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 fields (fields) 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 is transmitted through a PSSCH (Physical Sidelink 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 (SidelinkSynchronization signaling/Physical Broadcast Channel Block) with a link synchronization signal/Physical Broadcast Channel Block).

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 over a companion link.

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 device to a physical layer of the first communication node device.

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

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

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

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

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

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

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

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

For one embodiment, the first signaling comprises signaling "offsetttopointa".

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

As an embodiment, the first signaling is Cell-Specific (Cell-Specific).

As an embodiment, the first signaling is user equipment Specific (UE-Specific).

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

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 fields (fields) 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 is transmitted through a PSSCH (Physical Sidelink 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 (SidelinkSynchronization signaling/Physical Broadcast Channel Block) with link synchronization signal/Physical Broadcast Channel Block).

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 a whole or partial Field (Field) in a DCI (Downlink Control Information) used for scheduling accompanying 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 is transmitted over a companion link.

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 second signaling is Cell-Specific (Cell-Specific).

As an embodiment, the second signaling is user equipment Specific (UE-Specific).

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signalling is used by the first communication node device to determine the relative positional relationship of the reference frequency and the reference sub-carrier in the frequency domain.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling is used to directly indicate the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling is used for indirectly indicating the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling is used to explicitly indicate the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling is used to implicitly indicate the relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling directly indicates whether the reference frequency is a center frequency of the reference subcarrier.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the second signaling directly indicates whether the reference frequency is a center frequency of the reference subcarrier or a frequency of a lowest boundary of the reference subcarrier.

As an embodiment, the above sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the reference frequency is a frequency represented by NR-ARFCN, the second signaling indication frequency point a (point a) represents a frequency that is the same as the reference frequency, and if not, the second signaling indication frequency point a (point a) represents a frequency interval between the frequency represented by the point a and the reference frequency.

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 radio signal includes a PDCCH (Physical Downlink control channel).

As an embodiment, the first wireless signal includes a PSCCH (Physical downlink 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 one embodiment, the first wireless signal is a radio frequency signal.

As an embodiment, the first wireless signal is a signal after Modulation and up-conversion (Modulation and up-conversion).

As an embodiment, the first wireless signal is a signal after being not modulated and up-converted (Modulation and up-conversion).

As an embodiment, the first wireless signal is a signal before Modulation and up-conversion (Modulation and up-conversion).

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 sentence "operate the first wireless signal" refers to: 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 set of subcarriers includes a positive integer number of subcarriers (subcarriers).

As an embodiment, a Subcarrier Spacing (SCS) of each Subcarrier included in the first set of subcarriers is equal to the first Subcarrier Spacing.

As an embodiment, a Subcarrier Spacing (SCS) where one Subcarrier exists in the first set of subcarriers is not equal to the first Subcarrier Spacing.

As an embodiment, the first subcarrier may be any one subcarrier in the first set of subcarriers.

As an embodiment, the reference subcarrier is subcarrier 0 in CRB0(common resource Block 0) using the first subcarrier spacing.

As an embodiment, the reference subcarrier is a subcarrier occupying the lowest frequency domain resource in CRB0(common resource Block 0) employing the first subcarrier spacing.

As an embodiment, the reference subcarrier is a subcarrier occupying a lowest frequency domain Resource in a Common Resource Block (CRB) occupying the lowest frequency domain Resource with the first subcarrier spacing.

As an embodiment, the reference subcarrier is subcarrier 1 (indexed from 0) in CRB0(common resource Block 0) employing the first subcarrier spacing.

As an embodiment, the reference subcarrier is a subcarrier occupying a second lowest frequency domain resource in CRB0(common resource Block 0) employing the first subcarrier spacing.

As an embodiment, the reference subcarrier is a subcarrier occupying a second lowest (second lowest) frequency domain Resource in a Common Resource Block (CRB) occupying a lowest frequency domain Resource with the first subcarrier spacing.

As an embodiment, the reference subcarrier is a subcarrier that can be used for actual transmission.

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

As an embodiment, the frequency interval of the first subcarrier and the reference subcarrier in the frequency domain refers to: a frequency interval of the lowest boundary frequency of the first subcarrier and the lowest boundary frequency of the reference subcarrier in a frequency domain.

As an embodiment, the frequency interval of the first subcarrier and the reference subcarrier in the frequency domain refers to: a frequency separation in the frequency domain of a highest boundary frequency of the first subcarrier and a highest boundary frequency of the reference subcarrier.

As an embodiment, the frequency interval of the first subcarrier and the reference subcarrier in the frequency domain refers to: the center frequency of the first subcarrier and the center frequency of the reference subcarrier are separated in frequency domain.

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

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

As an embodiment, said X is equal to 0.

As one embodiment, X is greater than 0.

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

As an embodiment, the reference frequency is a frequency represented by a frequency point a (point a).

As an embodiment, the reference frequency is a frequency represented by frequency point a (point a) after a frequency offset.

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

As an example, the reference frequency is a frequency represented by a Channel Raster (Channel Raster) after a frequency offset.

As an embodiment, the reference frequency is one of the carriers to which the first set of subcarriers belongs.

As an embodiment, the reference frequency is a frequency other than a carrier to which the first set of subcarriers belongs.

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

As an example, the reference frequency is a frequency represented by ARFCN (Absolute Radio frequency channel Number).

As an embodiment, the reference Frequency is a Frequency represented by EARFCN (Evolved UMTS terrestrial Radio Access (EUTRA) Absolute Radio Frequency Channel Number).

As an embodiment, the reference frequency is a frequency represented by NR-ARFCN (New Radio Absolute Radio frequency Channel Number).

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 NR 5G, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced) systems. The NR 5G or LTE network architecture 200 may be referred to as EPS (evolved packet System) 200. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 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 b (gNB)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-CN 210. 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 game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a land vehicle, a car, a communication unit in a car, 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 connects to the EPC/5G-CN210 through the S1/NG interface. The EPC/5G-CN210 includes an MME/AMF/UPF211, other MMEs/AMF/UPF 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-CN 210. 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-GW 213. The P-GW213 provides UE IP address allocation 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 service.

As an embodiment, the gNB203 corresponds to the first communication node device 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 traffic.

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 radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first communication node device (UE, RSU in gbb or V2X) and the second communication node device (gbb, RSU in UE or V2X), or the control plane 300 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 PHY 301. Layer 2(L2 layer) 305 is above PHY301 and is responsible for the link between the first and second communication node devices and the two UEs through PHY 301. 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 the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides 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. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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 RRC 306.

As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the second signaling in this application is generated in the RRC 306.

As an embodiment, the second signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the second signaling in this application is generated in the PHY301 or the PHY 351.

As an embodiment, the first radio signal in this application is generated in the RRC 306.

As an embodiment, the first wireless signal in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the first wireless signal in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the third signaling in this application is generated in the RRC 306.

As an embodiment, the third signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the third signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the fourth signaling in this application is generated in the RRC 306.

As an embodiment, the fourth signaling in this application is generated in the MAC302 or the MAC 352.

As an embodiment, the fourth signaling in the present application is generated in the PHY301 or the PHY 351.

Example 4

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

Included in the first communication node device (450) are a controller/processor 490, a data source/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, and the controller/processor 490 provides packet header compression decompression, encryption and decryption, packet segmentation concatenation and reordering, and multiplexing and demultiplexing between logical and transport channels to implement L2 layer and upper 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. Receive processor 452 performs various signal receive processing functions for the L1 layer (i.e., the 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 data source/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 generation, etc.), among others. The receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including decoding, deinterleaving, descrambling, demodulation, depredialing, physical layer signaling extraction, and the like. The transmitter 416 is configured to convert the baseband signals provided by the transmit processor 415 into rf signals and transmit the rf signals via the antenna 420, and the receiver 416 is configured to convert the rf signals received by the antenna 420 into baseband signals and provide the baseband signals to the receive processor 412.

In DL (Downlink), an upper layer packet such as higher layer information included in the first signaling, the second signaling, the third signaling and the fourth signaling (if the first signaling, the second signaling, the third signaling and the fourth signaling in this application are transmitted through a Downlink), and a first wireless signal (if the first wireless signal is transmitted through a Downlink and includes higher layer information) is provided to the controller/processor 440. Controller/processor 440 performs the functions of layer L2 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. Controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to first communication node device 450, such as the higher layer information included in the first signaling, second signaling, third signaling, and fourth signaling (if included) in this application, all generated in controller/processor 440. The transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including coding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., the generation of the physical layer signals for the first, second, third, and fourth signaling in this application, and the generation of the physical layer signals for the first radio signal in this application are all done at 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 mapped to antenna 420 via transmitter 416 by transmit processor 415 for transmission as a radio frequency signal, where the first frequency offset and the second frequency offset may be implemented when generating baseband multi-carrier symbols 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 a 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 signaling, the second signaling, the third signaling, and the fourth signaling, etc. in this application, 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 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 and fourth signaling in this application, and the higher layer information (if included) included in the first wireless signal in this application. 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 all protocol layers above the L2 layer and the L2 layer. The controller/processor 490 implements the L2 layer protocol 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 transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., the physical layer), and if the first wireless signal in this application is transmitted via uplink and includes only physical layer information (such as uplink reference signals), a wireless signal in this application is generated at the transmit 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. The receive processor 412 implements 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 the first communication node device 450 over the physical channel. The data and/or control signals are then provided to a controller/processor 440. The functions of the L2 layer, including the interpretation of the 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, and fourth signaling in this application (if the first signaling, second signaling, third signaling, and fourth signaling in this application are transmitted over the companion link and include the upper layer information) and first wireless signals (if the first wireless signals are transmitted over the companion link and include the upper layer information, such as SL-SCH) are provided to controller/processor 440, and controller/processor 440 implements the functions of the layers above the L2 and L2 layers. 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 for the first, second, third, and fourth signaling are generated at the transmit processor 415, and where physical layer signals for 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 receive processor 452 implements various signal receive processing functions of the L1 layer. The signal reception processing functions include reception of physical layer signals of the first signaling, the second signaling, the third signaling, and the fourth signaling in this application, reception of physical layer signals 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 layers above L2 and L2, and the controller/processor 490 interprets the higher layer information included in the first signaling, second signaling, third signaling, and fourth signaling (if the first signaling, second signaling, third signaling, and fourth signaling in this application are transmitted over the companion link and include the higher layer information) and the first wireless signal (if the first wireless signal is transmitted by the second communication node 410 and includes the higher layer information, such as the SL-SCH). 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; receiving a second signaling; operating a first wireless signal occupying a first set of subcarriers in a frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; 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; receiving a second signaling; operating a first wireless signal occupying a first set of subcarriers in a frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; 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; sending a second signaling; performing a first wireless signal occupying a first set of subcarriers in a frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the performing is transmitting or the performing is receiving.

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; sending a second signaling; performing a first wireless signal occupying a first set of subcarriers in a frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the performing is transmitting or the performing is receiving.

For one embodiment, the first communication node device 450 is a User Equipment (UE).

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

As an embodiment, the first communication node apparatus 450 is a vehicle-mounted apparatus (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 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 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 third 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 fourth 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 first signaling is transmitted in step S11, the second signaling is transmitted in step S12, the third signaling is transmitted in step S13, the fourth signaling is transmitted in step S14, and the first wireless signal is transmitted in step S15.

For theFirst communication node U2The first signaling is received in step S21, the second signaling is received in step S22, the third signaling is received in step S23, the fourth signaling is received in step S24, and the first wireless signal is received in step S25.

In embodiment 5, the first wireless signal occupies a first set of subcarriers in the frequency domain, the first signaling being used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain; the fourth signaling is used to determine the first set of subcarriers.

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

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 fields (fields) 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, along with 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 (SidelinkSynchronization 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 PSSCH (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 includes a part or all of signaling "scs-specific carrier rlist".

As an example, the above sentence "the third signaling is used to determine the target subcarrier spacing set" includes the following meanings: the third signalling is used by the first communications node device to determine the target set of subcarrier spacings.

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

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

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

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

As an embodiment, the third signaling and the second signaling are the same signaling.

As an embodiment, the third signaling and the second signaling are different.

As an embodiment, the third signaling is the second signaling.

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 first signaling is transmitted in step S31, the second signaling is transmitted in step S32, the third signaling is transmitted in step S33, the fourth signaling is transmitted in step S34, and the first wireless signal is received in step S35.

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

In embodiment 6, the first wireless signal occupies a first set of subcarriers in the frequency domain, the first signaling being used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain; the fourth signaling is used to determine the first set of subcarriers.

As an embodiment, the second signaling includes a Field (Field) "frequency shift7p5 khz" in an RRC (Radio Resource Control) IE (Information Element ) "frequency info ul".

As an embodiment, the second signaling is used to indicate whether there is a frequency offset of 7.5kHz between a Channel grid (Channel Raster) of a Carrier (Carrier) to which the first set of subcarriers belongs and a Channel grid of LTE.

As an embodiment, the second signaling includes a Field (Field) "shift 7dot5 kHz" in "uplinktxdiretcurrentbwp" in RRC IE (Information Element ) "uplinktxdiretcurrentlist".

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

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

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

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

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

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

As an example, the sentence "the second signaling is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" in claim 1 in this application includes the following meanings: the second signaling is used to determine the first frequency offset, and the first frequency offset and the target set of subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the fourth signaling includes a PSS (Primary Synchronization Signal).

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

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

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

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, along with 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 (SidelinkSynchronization signaling/Physical Broadcast Channel Block) accompanied by a link synchronization signal/Physical Broadcast Channel Block).

As an embodiment, the fourth signaling is transmitted through a PSSCH (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 example, the above sentence "the fourth signaling is used to determine the first set of subcarriers" includes the following meanings: the fourth signalling is used by the first communication node device to determine the first set of sub-carriers.

As an example, the above sentence "the fourth signaling is used to determine the first set of subcarriers" includes the following meanings: the fourth signaling is used to directly indicate the first set of subcarriers.

As an example, the above sentence "the fourth signaling is used to determine the first set of subcarriers" includes the following meanings: the fourth signaling is used to indirectly indicate the first set of subcarriers.

As an example, the above sentence "the fourth signaling is used to determine the first set of subcarriers" includes the following meanings: the fourth signaling is used to explicitly indicate the first set of subcarriers.

As an example, the above sentence "the fourth signaling is used to determine the first set of subcarriers" includes the following meanings: the fourth signaling is used to implicitly indicate the first set of subcarriers.

As one embodiment, the first set of subcarriers is Configured (Configured).

As one embodiment, the first set of subcarriers is Pre-Configured (Pre-Configured).

Example 7

Embodiment 7 illustrates a wireless signal transmission flowchart 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 first signaling is received in step S61, the second signaling is received in step S62, the third signaling is received in step S63, the fourth signaling is received in step S64, and the first wireless signal is transmitted in step S65.

In embodiment 7, the first wireless signal occupies a first set of subcarriers in the frequency domain, the first signaling being used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain; the fourth signaling is used to determine the first set of subcarriers.

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).

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between a reference frequency and a reference subcarrier according to an embodiment of the present application, as shown in fig. 8. In fig. 8, each rectangle represents one subcarrier, the slashed-filled rectangles represent reference subcarriers, and the cross-hatched filled rectangles represent first subcarriers; in case a, the reference frequency is equal to the center frequency of the reference subcarrier, and in case B, the reference frequency is equal to the boundary frequency of the reference subcarrier.

In embodiment 8, the first signaling in the present application is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers in this application, and a subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling in this application is used to determine the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain includes: whether the reference frequency is a center frequency of the reference subcarrier.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain includes: whether the reference frequency is a boundary frequency of the reference subcarrier.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain includes: the reference frequency is a center frequency of the reference subcarrier or a boundary frequency of the reference subcarrier.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain includes: the position of the reference frequency in the frequency domain resources occupied by the reference subcarriers.

As an embodiment, the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain includes: a frequency separation between the reference frequency and a center frequency of the reference subcarrier.

Example 9

Embodiment 9 illustrates a schematic diagram of a relationship between a first frequency offset, a target subcarrier spacing set, a reference frequency and a reference subcarrier according to an embodiment of the present application, as shown in fig. 9. In fig. 9, each rectangle represents an operation or a state, and each diamond represents a judgment. In fig. 9, starting at 901, it is determined at 902 whether the target set of subcarrier spacings comprises only subcarrier spacings equal to 15kHz, and at 903 it is determined whether the first frequency offset is equal to a first alternative value, at 904 the reference frequency being equal to the center frequency of the reference subcarrier, and at 905 the reference frequency being equal to the boundary frequency of the reference subcarrier.

In embodiment 9, the third signaling in this application is used to determine a target subcarrier spacing set, where the first subcarrier spacing in this application is equal to one subcarrier spacing in the target subcarrier spacing set, and the target subcarrier spacing set includes a positive integer number of subcarrier spacings; the second signaling in this application is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the target subcarrier spacing set are used to determine a relative position relationship in the frequency domain between the reference frequency in the present application and the reference subcarrier in the present application; the first communication node device in the present application cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals included in the target set of subcarrier intervals is greater than 1.

As an embodiment, a Frequency Range (FR) in which a Carrier (Carrier) to which the first set of subcarriers belongs is also used to determine the target set of subcarrier spacings.

As an embodiment, when the Carrier (Carrier) to which the first subcarrier set belongs is in FR1(Frequency Range 1), any one subcarrier spacing in the target subcarrier spacing set is one of {15kHz, 30kHz, 60kHz }; when the Carrier (Carrier) to which the first subcarrier set belongs is in FR2(Frequency Range 2), any one subcarrier spacing in the target subcarrier spacing set is one of {60kHz, 120kHz, 240kHz }.

As an embodiment, the target set of subcarrier spacings includes only one subcarrier spacing.

For one embodiment, the target set of subcarrier spacings comprises more than one subcarrier spacing.

As an embodiment, the target subcarrier spacing set includes more than one subcarrier spacing, and any two subcarrier spacings in the target subcarrier spacing set are not equal.

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

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 0 kHz.

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

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 0 kHz.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the first frequency offset is equal to the first alternative value and only a subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings, the reference frequency is equal to a center frequency of the reference subcarrier; in other cases, the reference frequency is equal to the frequency of the lowest boundary of the reference subcarriers.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the first frequency offset is equal to the first alternative value and a subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings, the reference frequency is equal to a center frequency of the reference subcarrier; in other cases, the reference frequency is equal to the frequency of the lowest boundary of the reference subcarriers.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when only one subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings and the first frequency offset is equal to the first alternative value, the reference frequency is equal to a center frequency of the reference subcarrier; when only one subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings and the first frequency offset is equal to the second alternative value, the reference frequency is equal to the frequency of the lowest boundary of the reference subcarrier.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when only one subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings and the first frequency offset is equal to the first alternative value, the reference frequency is equal to a center frequency of the reference subcarrier; the reference frequency is equal to a frequency of a lowest boundary of the reference subcarrier when more than one subcarrier spacing is included in the target set of subcarrier spacings.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when only one subcarrier spacing equal to 15kHz is included in the target set of subcarrier spacings and the first frequency offset is equal to the first alternative value, the reference frequency is equal to a center frequency of the reference subcarrier; the reference frequency is equal to a frequency of a lowest boundary of the reference subcarrier when more than one subcarrier spacing is included in the target set of subcarrier spacings; the reference frequency is equal to a frequency of a lowest boundary of the reference subcarrier when the first frequency offset is equal to the second alternative value.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the first frequency offset is equal to the first alternative value and only one subcarrier spacing is included in the target set of subcarrier spacings, the reference frequency is equal to a center frequency of the reference subcarrier; in other cases, the reference frequency is equal to the frequency of the lowest boundary of the reference subcarriers.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the first frequency offset and the target set of subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain based on a mapping relationship.

As an example, the above sentence "the first frequency offset and the target subcarrier spacing set are used to determine the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the first frequency offset and the target set of subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain based on a conditional relationship.

As an example, the above sentence "the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1" includes the following meaning: the first communication node device considers that an Error (Error) is present in a case where the first frequency offset is equal to the first alternative value and the number of subcarrier spacings included in the target set of subcarrier spacings is greater than 1.

As an example, the above sentence "the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1" includes the following meaning: the first communication node device considers that the second communication node in the present application does not configure the first frequency offset to be equal to the first alternative value and the number of subcarrier spacings included in the target set of subcarrier spacings to be greater than 1.

As an example, the above sentence "the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1" includes the following meaning: the first communication node device considers that it is Abnormal (Abnormal) that the first frequency offset is equal to the first alternative value and that the number of subcarrier spacings comprised in the target set of subcarrier spacings is greater than 1.

As an example, the above sentence "the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1" includes the following meaning: when the first frequency offset is configured to be equal to the first alternative value and the number of subcarrier spacings included in the target set of subcarrier spacings is configured to be greater than 1, the first communication node device does not handle such a configuration.

As an example, the above sentence "the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier intervals comprised in the target set of subcarrier intervals is greater than 1" includes the following meaning: when the first frequency offset is configured to be equal to the first alternative value and the number of subcarrier spacings included in the target set of subcarrier spacings is configured to be greater than 1, the first communication node device discards handling such a configuration.

Example 10

Embodiment 10 shows a schematic diagram of a relationship between a first carrier, a reference frequency and a reference subcarrier according to an embodiment of the present application, shown in fig. 10. In fig. 10, each rectangle represents an operation or a state, and each diamond represents a judgment. In fig. 10, starting from 1001, it is determined in 1002 whether the frequency range in which the first carrier is located in the frequency domain is FR1, it is determined in 1003 whether the target subcarrier spacing set includes only subcarrier spacings equal to 15kHz, it is determined in 1004 whether the first frequency offset is equal to a first alternative value, the reference frequency is equal to the center frequency of the reference subcarrier in 1005, and the reference frequency is equal to the boundary frequency of the reference subcarrier in 1006.

In embodiment 10, the carrier to which the first subcarrier set belongs in this application is a first carrier, and a frequency range of the first carrier in the frequency domain is used to determine a relative position relationship between the reference frequency in this application and the reference subcarrier in this application in the frequency domain.

As an embodiment, the Frequency domain of the first carrier is in one of FR1(Frequency Range 1) or FR2(Frequency Range 2, Frequency Range 2).

As an embodiment, a Frequency Range in which the first carrier is located in a Frequency domain is one of M Frequency Ranges (FRs), where M is a positive integer greater than 1.

As an embodiment, a Frequency Range in which the first carrier is located in a Frequency domain is one of M Frequency Ranges (FRs), where M is a positive integer greater than 1, and the M Frequency ranges are fixed.

As an embodiment, the Frequency Range of the first carrier in the Frequency domain is one of Y Frequency Ranges (FRs), M is a positive integer greater than 1, and the M Frequency ranges are predefined.

As an embodiment, the Frequency Range of the first carrier in the Frequency domain is FR1(Frequency Range 1) or the Frequency Range of the first carrier in the Frequency domain is FR2(Frequency Range 2 ).

As an embodiment, the frequency domain of the first carrier is in one of a frequency range of 450MHz to 6000MHz or a frequency range of 24250MHz to 52600 MHz.

As an embodiment, the frequency range of the first carrier in the frequency domain is one of a frequency range of 450MHz to 6000MHz, a frequency range of 24250MHz to 52600MHz, or a frequency range of 52600MHz to 100000 MHz.

As an embodiment, the frequency range of the first carrier in the frequency domain is 450MHz to 6000MHz or the frequency range of the first carrier in the frequency domain is 24250MHz to 52600 MHz.

As one embodiment, the first carrier is for only the first subcarrier spacing.

As an embodiment, only transmission of wireless signals employing the first subcarrier spacing is supported in the first carrier.

As one embodiment, the first carrier is for the first subcarrier spacing and a subcarrier spacing other than the first subcarrier spacing.

As an embodiment, transmission of wireless signals employing the first subcarrier spacing and wireless signals employing subcarrier spacings other than the first subcarrier spacing is supported in the first carrier.

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

As an embodiment, the first carrier is a carrier that may be used for downlink transmission.

As an embodiment, the first carrier is a carrier that may be used for uplink transmission.

As an embodiment, the first carrier is a carrier that may be used for companion link (Sidelink) transmission.

As one embodiment, the first carrier is Specific to the first subcarrier spacing (Specific).

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the frequency range in which the first carrier is located in the frequency domain is used by the first communication node device to determine the relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the frequency range in which the first carrier is located in the frequency domain is used by the second communication node device in this application to determine the relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain based on a conditional relationship.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain based on the mapping relationship.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the frequency range of the first carrier wave in the frequency domain is FR1, determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain through the second signaling in the application; in other cases, the reference frequency is the frequency of the reference subcarrier at the lowest boundary of the frequency domain.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the frequency range of the first carrier wave in the frequency domain is FR1, determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain through the second signaling in the application; when the frequency range in which the first carrier is located in the frequency domain is F2, the reference frequency is a frequency of the lowest boundary of the reference subcarrier in the frequency domain.

As an embodiment, the above sentence "the frequency range of the first carrier in the frequency domain is used for determining the relative position relationship between the reference frequency and the reference subcarrier in the frequency domain" includes the following meanings: when the frequency range of the first carrier in the frequency domain is FR1, determining the relative position relationship of the reference frequency and the reference subcarrier in the frequency domain by the first frequency offset and the target subcarrier spacing set in this application; when the frequency range in which the first carrier is located in the frequency domain is F2, the reference frequency is a frequency of the lowest boundary of the reference subcarrier in the frequency domain.

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, each rectangle represents a subcarrier at one subcarrier interval, each cross-line filled rectangle represents one subcarrier other than the first subcarrier in the first subcarrier set, and the slashed filled rectangles represent the first subcarriers.

In embodiment 11, when the reference frequency in the present application is equal to the boundary frequency of the reference subcarrier in the present application, the frequency interval between the frequency of the first subcarrier in the present application and the frequency of the carrier to which the first subcarrier set in the present application belongs is equal to the sum of a second frequency offset and Y times the first subcarrier spacing in the present application, and Y is a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference, the second frequency offset is linearly related to the first difference, and an absolute value of the second frequency offset is smaller than the first subcarrier spacing.

As an embodiment, the reference frequency being equal to the boundary frequency of the reference subcarrier means: the reference frequency is equal to a frequency of the reference subcarrier at a lowest boundary of a frequency domain.

As an embodiment, the reference frequency being equal to the boundary frequency of the reference subcarrier means: the reference frequency is equal to a frequency of a highest boundary of the reference subcarrier in a frequency domain.

As an embodiment, said Y is equal to 0.

As one embodiment, Y is greater than 0.

As an example, the above sentence "the frequency interval between the frequency of the first subcarrier and the frequency of the carrier to which the first set of subcarriers belongs is equal to the sum of the second frequency offset and Y times the first subcarrier interval" means:

ΔΩ＝ΔΦ+Y·Δf

wherein Δ Ω represents the frequency interval between the frequency of the first subcarrier and the frequency of the carrier to which the first set of subcarriers belongs, Δ Φ represents the second frequency offset, and Δ f represents the first subcarrier interval.

As one embodiment, the second frequency offset is positive.

As one embodiment, the second frequency offset is negative.

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

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

As one embodiment, the unit of the second frequency offset is 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 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 set of subcarriers belongs is a Carrier Frequency (Carrier Frequency) of the Carrier to which the first set of subcarriers belongs.

As an embodiment, the frequency of the carrier to which the first set of subcarriers belongs is a carrier frequency (CarrierFrequency) of the first wireless signal in Modulation and up-conversion (Modulation and up-conversion).

As an embodiment, the Frequency of the Carrier to which the first set of subcarriers belongs is a Carrier Frequency (Carrier Frequency) of the first wireless signal in 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 set of subcarriers belongs is equal to 0 Hz.

As an embodiment, the first wireless signal is a non-modulated and non-upconverted (Modulation and upconversion) signal, and the frequency of the carrier to which the first set of subcarriers belongs is equal to a baseband zero frequency.

As an embodiment, the first wireless signal is a signal after OFDM Baseband signal (Baseband signaling) generation, and the carrier to which the first set of subcarriers belongs is equal to Baseband zero frequency.

As one embodiment, the first wireless Signal is a Radio Frequency Signal (Radio Frequency Signal), and the Carrier to which the first set of subcarriers belongs is equal to a Carrier Frequency (Carrier Frequency) of the Carrier to which the first set of subcarriers 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 an embodiment, the reference subcarrier spacing is equal to one of 15kHz, 30kHz, 60kHz, 120kHz, 240 kHz.

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

As an embodiment, the first difference is positive.

As one embodiment, the first difference is negative.

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

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

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

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

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

wherein Δ Φ represents the second frequency offset,

represents the first sub-carrier spacing and,

representing the reference subcarrier spacing.

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

wherein Δ Φ represents the second frequency offset,

represents the first sub-carrier spacing and,

representing the reference subcarrier spacing.

As one embodiment, the reference subcarrier spacing is one subcarrier spacing in the target set of subcarrier spacings.

As an embodiment, when the target subcarrier spacing set includes more than 1 subcarrier spacing, the reference subcarrier spacing is the largest subcarrier spacing in the target subcarrier spacing set in the present application.

As an embodiment, when the target subcarrier spacing set includes more than 1 subcarrier spacing, the reference subcarrier spacing is the smallest subcarrier spacing in the target subcarrier spacing set in the present application.

As an embodiment, when only 1 subcarrier spacing is included in the target subcarrier spacing set, the reference subcarrier spacing is the subcarrier spacing included in the target subcarrier spacing set in the present application.

Example 12

Embodiment 12 illustrates a schematic diagram of a relationship of a first complex number and a first parameter according to an embodiment of the present application, as shown in fig. 12. In fig. 12, the horizontal axis represents time, the vertical axis represents frequency, each unfilled rectangle represents one RE other than the first RE in the time-frequency resources occupied by the first radio signal, and the hatched rectangle represents the first RE.

In embodiment 12, 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 equal to 1, and the second 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 (resourcemaping) of sections 6.3.1.6 and 6.3.1.7 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 radio Signal, the first complex number is mapped on the first RE (Resource Element) by Mapping to Physical Resources.

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 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).

In 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 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 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), 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, and the complex symbols in the first complex symbol sequence are sequentially mapped to Virtual Resource Blocks (Mapping to Virtual resources), mapped to Physical Resource Blocks (Mapping to Physical resources), and generated OFDM Baseband Signal (OFDM base band), and the first wireless Signal is obtained after Modulation upconversion (Modulation and upconversion).

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 comprises a first transmission Block (TB, Transport Block), wherein the first transmission Block (TB, Transport Block) sequentially passes through CRC addition (CRCItransition), Segmentation (Segmentation), coding Block level CRC addition (CRC Insertion), channel coding (Channelcoding), Rate Matching (Rate Matching), Concatenation (collocation), Scrambling (Scrambling), Modulation (Modulation), Layer Mapping (Layer Mapping) and Precoding (Precoding) to obtain a first complex symbol sequence, the first complex symbol is one complex symbol in the first complex symbol sequence, and the complex symbol in the first complex symbol sequence is sequentially mapped to a Virtual Resource block (Mapping to Virtual Resource Blocks), mapped from the Virtual Resource block to a Physical Resource block (Mapping from Virtual Resource Blocks), generated OFDM Baseband Signal (OFDM base and Signal Generation), and modulated up-converted (Modulation and up-conversion) to obtain the first radio 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 wireless signal comprises a first Transport Block (TB, Transport Block), the first Transport Block (TB, Transport Block) sequentially passes through CRC addition (CRCItransition), 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, the first complex symbol is one complex symbol in the first complex symbol sequence, and the complex symbol in the first complex symbol sequence is sequentially mapped to a Virtual Resource block (Mapping to Virtual Resource Blocks), mapped from the Virtual Resource block to a Physical Resource block (Mapping from Virtual Physical Resource Blocks), generated OFDM Baseband signal (OFDM base and signaling generation), and modulated and upconverted (Modulation and Upconversion) to obtain the first radio 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 wireless signal comprises a first transmission Block (TB, Transport Block), wherein the first transmission Block (TB, Transport Block) sequentially passes through CRC addition (CRCItransition), Segmentation (Segmentation), coding Block level CRC addition (CRC insert), channel coding (Channelcoding), Rate Matching (Rate Matching), Concatenation (collocation), Scrambling (Scrambling), Modulation (Modulation), Layer Mapping (Layer Mapping), Transform Precoding (Transform Precoding), and Precoding (Precoding) to obtain a first complex symbol sequence, the first complex symbol is one complex symbol in the first complex symbol sequence, and the complex symbol in the first complex symbol sequence is sequentially mapped to a Virtual Resource block (Mapping to Virtual Resource Blocks), mapped from the Virtual Resource block to a Physical Resource block (Mapping from Virtual Physical Resource Blocks), generated OFDM Baseband signal (OFDM base and signaling generation), and modulated and upconverted (Modulation and Upconversion) to obtain the first radio 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 sequentially subjected to CRC addition (CRC indication), Channel Coding (Channel Coding), rate matching (RateMatching), Scrambling (Scrambling), and Modulation to obtain a first complex symbol sequence, where the first complex symbol is one complex symbol in the first complex symbol sequence, and the complex symbol in the first complex symbol sequence is sequentially mapped to Physical Resources (Mapping Physical Resources), OFDM baseband signal Generation (OFDM baseband Generation), and Modulation and Upconversion to obtain the first radio 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, 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 baseband Generation), and Modulation and Upconversion (Modulation and Upconversion) to obtain the first radio signal.

As an example, the above sentence "the second frequency offset is used to determine the phase of the first parameter at polar coordinates" includes the following meanings: the second 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 second frequency offset is used to determine the phase of the first parameter at polar coordinates" includes the following meanings: the second 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 complex symbol and the second complex symbol,

is representative of said first parameter or parameters and,

represents the second amount of frequency offset to be,

Δf，μ₀，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 content of the first and second substances,

represents the first complex symbol and the second complex symbol,

is representative of said first parameter or parameters and,

represents the second amount of frequency offset to be,

Δf，μ₀，μ，

T_C，

k，l，K，Δf_RA，k₁，

n_RA，

follows the corresponding definition 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,

represents the first complex symbol and the second complex symbol,

is representative of said first parameter or parameters and,

represents the second amount of frequency offset to be,

Δf，μ₀，μ，

T_C，

the definition of k, l modifies the corresponding definition for Downlink (Downlink) or Uplink (Uplink) in section 5.3.1 in 3GPP TS38.211(v15.4.0) to companion link (Sidelink), respectively.

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

wherein the content of the first and second substances,

represents the first complex symbol and the second complex symbol,

is representative of said first parameter or parameters and,

represents the second amount of frequency offset to be,

Δf，μ₀，μ，

T_C，

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus in a first communication node device according to an embodiment, as shown in fig. 13. In fig. 13, the first communication node device processing apparatus 1300 comprises a first receiver 1301, a second receiver 1302 and a first transceiver 1303. The first receiver 1301 includes 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 second receiver 1302 includes the transmitter/receiver 456 (including the antenna 460), the receive processor 452, and the controller/processor 490 of fig. 4 herein; the first transceiver 1303 includes a transmitter/receiver 456 (including an antenna 460), a transmit processor 455, a receive processor 452, and a controller/processor 490 of fig. 4 of the present application.

In embodiment 13, the first receiver 1301 receives first signaling; the second receiver 1302 receives the second signaling; the first transceiver 1303 operates a first wireless signal occupying a first set of subcarriers in the frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the operation is a reception or the operation is a transmission.

For one embodiment, the second receiver 1302 is configured to receive third signaling, wherein the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing is equal to one subcarrier spacing in the target set of subcarrier spacings, and the target set of subcarrier spacings comprises a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

For one embodiment, the second receiver 1302 is configured to receive third signaling, wherein the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing is equal to one subcarrier spacing in the target set of subcarrier spacings, and the target set of subcarrier spacings comprises a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain; the first communication node device cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier spacings comprised in the target set of subcarrier spacings is greater than 1.

As an embodiment, the carrier to which the first subcarrier set belongs is a first carrier, and a frequency range of the first carrier in the frequency domain is used to determine a relative position relationship between the reference frequency and the reference subcarrier in the frequency domain.

For one embodiment, the second receiver 1302 is configured to receive fourth signaling, wherein the fourth signaling is used to determine the first set of subcarriers.

As an embodiment, when the reference frequency is equal to a boundary frequency of the reference subcarrier, a frequency interval between a frequency of the first subcarrier and a frequency of a carrier to which the first set of subcarriers belongs is equal to a sum of a second frequency offset and Y times the first subcarrier interval, the Y being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference, the second frequency offset is linearly related to the first difference, and an absolute value of the second frequency offset is smaller than the first subcarrier spacing.

As an embodiment, when the reference frequency is equal to a boundary frequency of the reference subcarrier, a frequency interval between a frequency of the first subcarrier and a frequency of a carrier to which the first set of subcarriers belongs is equal to a sum of a second frequency offset and Y times the first subcarrier interval, the Y being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference, the second frequency offset is linearly related to the first difference, and an absolute value of the second frequency offset is smaller than the first subcarrier spacing; the time frequency resource occupied by the first wireless signal comprises a first RE, a first complex number is mapped on the first RE, and the product of a first complex number symbol and a first parameter is 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 second frequency offset is used to determine the phase of the first parameter in polar coordinates.

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus in a second communication node device according to an embodiment, as shown in fig. 14. In fig. 14 the second communication node device processing means 1400 comprises a first transmitter 1401, a second transmitter 1402 and a second transceiver 1403. The first transmitter 1401 comprises 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 transmitter 1402 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 1403 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 14, a first transmitter 1401 transmits first signaling; the second transmitter 1402 sends the second signaling; the second transceiver 1403 performs a first wireless signal occupying a first set of subcarriers in the frequency domain; wherein the first signaling is used to determine a reference frequency; a first subcarrier belongs to one subcarrier in the first set of subcarriers, and the subcarrier spacing of the first subcarrier is equal to a first subcarrier spacing; for the first subcarrier spacing, there is one subcarrier as a reference subcarrier, the subcarrier spacing of the reference subcarrier is equal to the first subcarrier spacing, the frequency spacing of the first subcarrier and the reference subcarrier in the frequency domain is equal to X times the first subcarrier spacing, and X is a non-negative integer; the second signaling is used for determining the relative position relation of the reference frequency and the reference subcarrier in the frequency domain; the performing is transmitting or the performing is receiving.

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 example, the second transmitter 1402 sends the third signaling; wherein the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

As an example, the second transmitter 1402 sends the third signaling; wherein the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing in the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain; a recipient of the third signaling cannot assume that the first frequency offset is equal to the first alternative value and that the number of subcarrier spacings included in the target set of subcarrier spacings is greater than 1.

As an embodiment, the second transmitter 1402 sends the fourth signaling; wherein the fourth signaling is used to determine the first set of subcarriers.

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;

a second receiver receiving a second signaling;

2. The first communication node device of claim 1, the second receiver is configured to receive third signaling, wherein the third signaling is used to determine a target set of subcarrier spacings, the first subcarrier spacing being equal to one subcarrier spacing of the target set of subcarrier spacings, the target set of subcarrier spacings comprising a positive integer number of subcarrier spacings; the second signaling is used to determine a first frequency offset; the first frequency offset is equal to a first alternative value, or the first frequency offset is equal to a second alternative value; the first alternate value and the second alternate value are not equal; the first frequency offset and the set of target subcarrier spacings are used to determine a relative positional relationship of the reference frequency and the reference subcarrier in the frequency domain.

3. The first communications node device of claim 2, wherein said first communications node device cannot assume that said first frequency offset is equal to said first alternative value and that the number of subcarrier spacings included in said target set of subcarrier spacings is greater than 1.

4. The first communications node device according to any one of claims 1 to 3, wherein the carrier to which the first set of subcarriers belongs is a first carrier, and a frequency range in which the first carrier is located in the frequency domain is used to determine a relative positional relationship between the reference frequency and the reference subcarrier in the frequency domain.

5. The first communications node device of any of claims 1-4, wherein the second receiver is configured to receive fourth signaling, wherein the fourth signaling is used to determine the first set of subcarriers.

6. The first communication node device according to any of claims 1 to 5, wherein when the reference frequency is equal to a boundary frequency of the reference subcarrier, a frequency interval between a frequency of the first subcarrier and a frequency of a carrier to which the first set of subcarriers belongs is equal to a sum of a second frequency offset and Y times the first subcarrier interval, the Y being a non-negative integer; for the first subcarrier spacing, there is one subcarrier spacing as a reference subcarrier spacing, a difference between the first subcarrier spacing and the reference subcarrier spacing is equal to a first difference, the second frequency offset is linearly related to the first difference, and an absolute value of the second frequency offset is smaller than the first subcarrier spacing.

7. The first communications node device of claim 6, wherein the time-frequency resources occupied by the first radio signal include a first RE, wherein a first complex number is mapped on the first RE, and wherein 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 second frequency offset is used to determine the phase of the first parameter in polar coordinates.

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

a first transmitter for transmitting a first signaling;

a second transmitter for transmitting a second signaling;

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

receiving a first signaling;

receiving a second signaling;

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

sending a first signaling;

sending a second signaling;