CN113939035A

CN113939035A - Method and device used in wireless communication node

Info

Publication number: CN113939035A
Application number: CN202010602100.7A
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: 2020-06-29
Filing date: 2020-06-29
Publication date: 2022-01-14
Anticipated expiration: 2040-06-29
Also published as: CN113939035B

Abstract

A method and apparatus in a node for wireless communication is disclosed. A node receives a first synchronization signal and a first broadcast signal, wherein the first broadcast signal carries a target index; the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, and the target subset of time-frequency resources and the first set of time-frequency resources comprise the same symbols in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index determines whether the first broadcast signal carries a first information block, the first information block determining a set of control resources. The present application improves broadcast channel performance.

Description

Method and device used in wireless communication node

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus for a reduced capability device 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 multiple application scenarios, a New air interface technology (NR, New Radio) (or 5G) is determined to be studied in 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 guilds, and standardization Work on NR starts after passing through WI (Work Item) of the New air interface technology (NR, New Radio) in 3GPP RAN #75 guilds.

In a new air interface technology, the application of the internet of things is an important component. Although some new features have been introduced in Release 15(Release 15) and Release 16(Release 16) to support different Internet of Things application scenarios, such as Ultra-reliable Low-Latency Communications (URLLC) and Industrial physical networks (IIoT), standard support is still required for some other application scenarios, such as wearable devices, surveillance videos, etc. Based on the above background, the SI (Study Item) of Reduced Capability (Reduced Capability), also referred to as NR-Lite at the previous stage, was passed through at 3GPP RAN #86 at the next global meeting, and the Study work was started at Release 17(Release 17).

Disclosure of Invention

Reducing the radio frequency bandwidth is one of the effective methods to reduce the complexity of the user equipment. However, due to the reduction of the radio frequency bandwidth of the user equipment, some signals or channels adopting the existing design may not be completely received or transmitted, thereby causing the system to be inoperable or performance to be degraded.

The present application discloses a solution to the problem in narrow radio frequency bandwidth scenarios, such as red cap. It should be noted that in the description of the present application, only a narrow bandwidth user equipment (such as a RedCap) is taken as a typical application scenario or example; the present application is also applicable to other scenarios in which the receiving or transmitting bandwidth is limited and faces similar problems (for example, in a scenario in which a larger carrier bandwidth is supported, a user equipment supporting the existing bandwidth may also face similar problems), and may also achieve similar technical effects. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to a RedCap scenario) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.

The application discloses a method used in a first node in wireless communication, which is characterized by comprising the following steps:

receiving a first synchronization signal;

receiving a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer;

wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

As an embodiment, by requiring that the target time-frequency resource subset and the first time-frequency resource set include one same symbol in the time domain, while providing an additional transmission resource of the physical broadcast channel, an increased Beam sweeping (Beam sweeping) process caused by a limitation of analog Beamforming is avoided, so that a limitation of resource scheduling is reduced, and a resource utilization rate is improved.

As an embodiment, determining whether the target subset of time-frequency resources is occupied by the first broadcast signal according to the type of the first node device enables maximum reuse of existing physical broadcast channel designs when supporting a user equipment with a RedCap or other radio frequency bandwidth capability, while ensuring compatibility and reducing complexity and workload of system design.

According to an aspect of the present application, the above method is characterized in that a first modulation symbol sequence is used to generate the first broadcast signal, the first modulation symbol sequence includes a positive integer greater than 1 of modulation symbols arranged in sequence, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second time-frequency resource set, any resource element included in the second time-frequency resource set and any resource element included in the first time-frequency resource set occupy different symbols in a time domain; when the target time-frequency resource subset is occupied by the first broadcast signal, mapping X1 modulation symbols in the first modulation symbol sequence onto resource elements included in the target time-frequency resource subset, wherein X1 is a positive integer greater than 1.

According to an aspect of the present application, the above method is characterized in that the second set of time-frequency resources includes M subcarriers in the frequency domain, the M subcarriers include M1 subcarriers, the M1 is a positive integer greater than 1, and the M is a positive integer no less than the M1; any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the frequency domain by the first set of time-frequency resources; the distribution of the M1 sub-carriers among the M sub-carriers is predefined, or the distribution of the M1 sub-carriers among the M sub-carriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, by repeatedly transmitting the modulation symbols on the M1 subcarriers, the performance and coverage performance of PBCH transmission are ensured, and at the same time, flexibility is provided for implementation of a receiver; and associating the distribution of the M1 subcarriers in the M subcarriers with the position of the time domain resource occupied by the first synchronization signal in the time domain, thereby realizing the randomization of interference and further improving the transmission performance of PBCH.

According to an aspect of the present application, the above method is characterized in that the target time-frequency resource subset includes M2 subcarriers in the frequency domain, and any one subcarrier of the M2 subcarriers is one subcarrier of subcarriers included in the frequency domain of the second time-frequency resource set; the second set of time-frequency resources includes consecutive subcarriers in the frequency domain, the two most marginal subcarriers included in the frequency domain by the second set of time-frequency resources are two subcarriers of the M2 subcarriers, respectively, and the M2 is a positive integer greater than 1.

As an embodiment, by requiring that the M2 subcarriers include two outermost subcarriers included in the frequency domain of the second time-frequency resource set, so that modulation symbols for repeated transmission are still mapped according to the transmission bandwidth of PBCH, while compensating for PBCH modulation symbols lost due to bandwidth limitation of a receiving node, the resource mapping scheme and power allocation are simplified, and the frequency diversity gain of PBCH transmission is improved.

According to an aspect of the present application, the above method is characterized in that the target subcarrier is a subcarrier of the target time-frequency resource subset outside subcarriers included in the frequency domain, and the target subcarrier is a subcarrier of the first time-frequency resource set outside subcarriers included in the frequency domain; the position of the target subcarrier in the frequency domain is between the position of the subcarrier, included in the frequency domain, of the target time-frequency resource subset in the frequency domain and the position of the subcarrier, included in the frequency domain, of the first time-frequency resource set in the frequency domain.

As an embodiment, the target subcarrier is set as a guard subcarrier, so that all possible influences on the synchronization signal due to adjacent band interference are avoided, and the receiving performance of the synchronization signal is ensured.

According to an aspect of the application, the above method is characterized in that the ratio between the transmission energy of the first synchronization signal at each resource element occupied and the transmission energy of the first broadcast signal at each resource element occupied is equal to a first ratio, the first ratio being related to whether the target subset of time-frequency resources is occupied by the first broadcast signal.

As an embodiment, the first ratio is associated with whether the target time-frequency resource subset is occupied by the first broadcast signal, so that a receiver in the broadcast signal receiving process can reuse Automatic Gain Control (AGC) of the synchronization signal under different conditions, thereby improving the receiving performance of the synchronization signal and reducing the complexity of the receiver.

According to one aspect of the application, the above method is characterized in that the target index belongs to one of a first index set or a second index set, the first index set comprising positive integer indices greater than 1, the second index set comprising positive integer indices greater than 1; when the target index belongs to the first index set, the first broadcast signal carries the first information block; when the target index belongs to the second index set, the first broadcast signal carries information other than the first information block.

According to one aspect of the application, the method described above is characterized by comprising:

receiving a first reference signal;

wherein a first sequence is used for generating the first reference signal, the first sequence being mapped on resource elements comprised by a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

As an embodiment, the first subsequence is mapped on the resource elements of the first symbol and the second symbol at the same time, so that the performance of channel estimation of a broadcast channel is ensured, the complexity of resource mapping of the reference signal and the complexity of channel estimation are reduced by copying the reference signal of the whole time domain as a whole, and the receiving bandwidths of various receivers can be compatible.

The application discloses a method used in a second node in wireless communication, which is characterized by comprising the following steps:

transmitting a first synchronization signal;

sending a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer;

transmitting a first reference signal;

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

a first receiver receiving a first synchronization signal;

a second receiver, configured to receive a first broadcast signal, where the first broadcast signal carries a target index, and the target index is a non-negative integer;

The application discloses a second node equipment for wireless communication, characterized by comprising:

a first transmitter that transmits a first synchronization signal;

a second transmitter, configured to transmit a first broadcast signal, where the first broadcast signal carries a target index, and the target index is a non-negative integer;

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

the method of the present application provides additional transmission resources of the physical broadcast channel, and simultaneously avoids an increased Beam sweeping (Beam sweeping) process caused by the limitation of analog Beam forming (analog Beamforming), reduces the limitation of resource scheduling, and improves the resource utilization rate;

using the method of the present application, when supporting a user equipment with a red beacon or other radio frequency bandwidth capability, the existing physical broadcast channel design is reused to the maximum extent, which reduces the complexity and workload of the system design while ensuring compatibility;

by adopting the method in the application, the transmission performance and the coverage performance of the PBCH are ensured, and meanwhile, the flexibility is provided for the realization of a receiver; meanwhile, the randomization of interference is realized, and the transmission performance of PBCH is further improved;

the method in the present application enables the modulation symbols that are repeatedly transmitted to still be mapped according to the transmission bandwidth of PBCH, simplifies the resource mapping scheme and power allocation while compensating for PBCH modulation symbols lost due to the limitation of the bandwidth of the receiving node, and improves the frequency diversity gain of PBCH transmission;

the method in the application avoids the influence on the synchronous signal caused by adjacent band interference, and ensures the receiving performance of the synchronous signal;

by adopting the method in the application, the receiver in the broadcast signal receiving process can reuse Automatic Gain Control (AGC) of the synchronous signal under different conditions, thereby improving the receiving performance of the synchronous signal and reducing the complexity of the receiver;

the method ensures the performance of channel estimation of the broadcast channel, copies the reference signal of the whole time domain as a whole, reduces the complexity of reference signal resource mapping and the complexity of channel estimation, and is compatible with the receiving bandwidths of various receivers.

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 a first synchronization signal and a first broadcast signal according to an embodiment of the present 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 node device and a second node device according to an embodiment of the present application;

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

FIG. 6 shows a schematic diagram of X1 modulation symbols according to one embodiment of the present application;

fig. 7 shows a schematic diagram of M1 subcarriers according to an embodiment of the present application;

fig. 8 shows a schematic diagram of M2 subcarriers according to an embodiment of the present application;

fig. 9 shows a schematic diagram of a target subcarrier according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a first ratio according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of a relationship between a first index set and a second index set according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of a first reference signal according to an embodiment of the present application;

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

fig. 14 shows a block diagram of a processing apparatus in a second node device according to an embodiment of the present 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 flowchart of a first synchronization signal and a first broadcast signal 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 node apparatus in the present application receives a first synchronization signal in step 101; receiving a first broadcast signal in step 102, the first broadcast signal carrying a target index, the target index being a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

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

As one embodiment, the first synchronization signal is a Radio Frequency (RF) signal.

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

As one embodiment, the first synchronization signal is a Baseband (Baseband) signal.

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

As one embodiment, the first broadcast signal is a Radio Frequency (RF) signal.

As one embodiment, the first broadcast signal is transmitted over an air interface.

As one embodiment, the first broadcast signal is a Baseband (Baseband) signal.

As an embodiment, the first Synchronization Signal and the first Broadcast Signal belong to the same SS/PBCH (Synchronization Signal/Physical Broadcast Channel) Block (Block).

As an embodiment, the first Synchronization Signal and the first Broadcast Signal belong to a SS/PBCH (Synchronization Signal/Physical Broadcast Channel) Block (Block) having the same index.

As an embodiment, the first Synchronization Signal and the first Broadcast Signal belong to different SS/PBCH (Synchronization Signal/Physical Broadcast Channel) blocks (blocks).

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

As one embodiment, the first Synchronization Signal includes a Secondary Synchronization Signal (SSS).

As one embodiment, the first Synchronization Signal includes a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).

As one embodiment, the first synchronization signal is generated from a sequence.

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

As an embodiment, the first Broadcast signal is transmitted through a BCH (Broadcast Channel).

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

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

As one embodiment, the first broadcast signal carries a Payload (Payload) of a PBCH.

As an embodiment, the first broadcast signal carries MIB and physical layer information.

As an embodiment, the first broadcast signal carries a high layer generated load (Payload) and a physical layer generated load (Payload).

As an embodiment, the first broadcast signal carries a high layer generated Payload (Payload) and a Timing (Timing) related PBCH Payload (Payload).

As one embodiment, the first broadcast signal includes a PBCH and a reference signal.

As one embodiment, the first broadcast Signal includes PBCH and Demodulation Reference Signal (DMRS) of PBCH.

As one embodiment, the first broadcast signal does not include a reference signal.

As one embodiment, the first synchronization signal is broadcast.

As an embodiment, the first synchronization signal is multicast.

As an embodiment, the first synchronization signal is broadcast, or multicast.

As an example, the first synchronization signal is Beam Specific.

As an embodiment, the first synchronization signal is Cell Specific.

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

As one embodiment, the first synchronization signal is used to determine Timing of the downlink (Timing).

As an embodiment, the first synchronization signal is Antenna Port Specific (Antenna Port Specific).

As one embodiment, the first synchronization signal is used for Cell Search (Cell Search).

As one embodiment, the first broadcast signal is Beam Specific.

As an embodiment, the first broadcast signal is Antenna Port Specific (Antenna Port Specific).

As one embodiment, the first broadcast signal is Cell Specific.

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

As one embodiment, the first broadcast signal is used for Cell Search (Cell Search).

As an embodiment, the first synchronization signal and the first broadcast signal are transmitted using the same beam (beam).

As one embodiment, the first synchronization signal and the first broadcast signal employ the same Antenna Port (Antenna Port).

As an embodiment, the first synchronization signal and the first broadcast signal both employ an Antenna Port (Antenna Port) 4000.

As one embodiment, the first synchronization signal and the first broadcast signal are Quasi Co-Located (QCL).

As one embodiment, the first synchronization signal and the first broadcast signal are Non-Quasi Co-Located (Non-QCL, Non Quasi Co-Located).

As an embodiment, the first synchronization signal and the first broadcast signal are Quasi Co-Located (QCL, Quasi Co-Located) for Doppler Spread (Doppler Spread), Doppler Shift (Doppler Shift), Average Gain (Average Gain), Average Delay (Average Delay), Delay Spread (Delay Spread).

As one embodiment, the first synchronization signal and the first broadcast signal are Quasi Co-Located (QCL, Quasi Co-Located) for Doppler Spread (Doppler Spread), Doppler Shift (Doppler Shift), Average Gain (Average Gain), Average Delay (Average Delay), Delay Spread (Delay Spread), and Spatial Rx Parameters (Spatial Rx Parameters).

For one embodiment, the target index may be equal to 0.

For one embodiment, the target index is greater than 0.

As one embodiment, the target index is k_SSB。

As an embodiment, the target index is an offset between two subcarriers.

As an embodiment, the target index is a number of subcarriers of an offset between two subcarriers.

For one embodiment, the target index is equal to a non-negative integer no greater than 15.

For one embodiment, the target index is equal to a non-negative integer no greater than 31.

As an example, the above sentence "the first broadcast signal carries a target index" includes the following meanings: the target index is included in a Payload (Payload) carried by the first broadcast signal.

As an example, the above sentence "the first broadcast signal carries a target index" includes the following meanings: higher layer information carried by the first broadcast signal is used to determine the target index.

As an example, the above sentence "the first broadcast signal carries a target index" includes the following meanings: the high layer information and physical layer information carried by the first broadcast signal are used together to determine the target index.

As an example, the above sentence "the first broadcast signal carries a target index" includes the following meanings: a high layer Payload (Payload) and a physical layer Payload (Payload) carried by the first broadcast signal each comprise a portion of the target index.

As an embodiment, the first synchronization signal occupies only the first set of time-frequency resources.

As an embodiment, the first synchronization signal also occupies Resource Elements (REs) outside the first set of time-frequency resources.

In one embodiment, the first synchronization signal occupies all resource elements included in the first set of time-frequency resources.

As an embodiment, the first synchronization signal occupies resource elements of a portion comprised by the first set of time-frequency resources.

As an embodiment, the first set of time-frequency resources includes a positive integer number of Resource Elements (REs) greater than 1.

As an embodiment, the first set of time-frequency resources includes a positive integer number of Physical Resource Blocks (PRBs) greater than 1 in a frequency domain.

As one embodiment, the first set of time-frequency resources includes a positive integer number of symbols (symbols) in the time domain.

As an embodiment, the first set of time-frequency resources includes only 1 Symbol (Symbol) in the time domain.

As an embodiment, the resource elements included in the first set of time-frequency resources are continuously distributed in the frequency domain.

As an embodiment, the resource elements comprised by the first set of time-frequency resources are discrete in the frequency domain.

As an embodiment, the first broadcast signal occupies only the second set of time-frequency resources.

As an embodiment, the first broadcast signal further occupies resource elements other than those comprised in the second set of time-frequency resources.

As an embodiment, all resource elements comprised by the second set of time-frequency resources are occupied by the first broadcast signal.

As an embodiment, the resource elements of the portion comprised by the second set of time-frequency resources are occupied by the first broadcast signal.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of Resource Elements (REs) greater than 1.

As an embodiment, the second set of time-frequency resources includes a positive integer number of Physical Resource Blocks (PRBs) greater than 1 in the frequency domain.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of symbols (Symbol) in the time domain.

As an embodiment, the second set of time-frequency resources comprises only 3 symbols (symbols) in the time domain.

As an embodiment, the resource elements comprised by the second set of time-frequency resources are continuously distributed in the frequency domain.

As an embodiment, the resource elements comprised by the second set of time-frequency resources are discrete in the frequency domain.

As an embodiment, the above sentence "the target subset of time-frequency resources and the second set of time-frequency resources are orthogonal" includes the following meanings: there is not one Resource Element (RE) belonging to both the target subset of time-frequency resources and the second set of time-frequency resources.

As an embodiment, the above sentence "the target subset of time-frequency resources and the second set of time-frequency resources are orthogonal" includes the following meanings: there are no overlapping (Overlapped) resource elements between the target subset of time-frequency resources and the second set of time-frequency resources.

As an embodiment, the above sentence "the target subset of time-frequency resources and the second set of time-frequency resources are orthogonal" includes the following meanings: any resource element included in the target time-frequency resource subset is different from any resource element included in the second time-frequency resource set.

As an embodiment, the above sentence "the target subset of time-frequency resources and the second set of time-frequency resources are orthogonal" includes the following meanings: non-overlapping (Non-Overlapped) between the target subset of time frequency resources and the second set of time frequency resources.

As an embodiment, any Symbol (Symbol) included in the time domain by the target subset of time frequency resources is different from any Symbol (Symbol) included in the time domain by the second set of time frequency resources.

As an embodiment, the symbols (Symbol) comprised by the target subset of time frequency resources in the time domain and the symbols (Symbol) comprised by the second set of time frequency resources in the time domain are Orthogonal (Orthogonal) in the time domain.

As an embodiment, there is not one Symbol (Symbol) comprised in the time domain by both the target subset of time frequency resources and the second subset of time frequency resources.

As an embodiment, the target subset of time-frequency resources comprises more than 1 positive whole resource elements.

As an embodiment, the target set of time-frequency resources comprises a positive integer number of symbols (Symbol) in the time domain.

As an embodiment, the target set of time-frequency resources comprises only 1 Symbol (Symbol) in the time domain.

As an embodiment, the resource elements comprised by the target set of time-frequency resources are continuously distributed in the frequency domain.

As an embodiment, the resource elements comprised by the target set of time-frequency resources are discrete in the frequency domain.

As an embodiment, the target subset of time-frequency resources and the first set of time-frequency resources are orthogonal.

As an embodiment, there is not one resource element belonging to both the target subset of time-frequency resources and the first set of time-frequency resources.

As an embodiment, each Symbol (Symbol) comprised by the target subset of time-frequency resources in the time domain is one Symbol (Symbol) comprised by the first set of time-frequency resources in the time domain.

As an embodiment, the symbols (Symbol) comprised by the target subset of time-frequency resources in the time domain and the symbols (Symbol) comprised by the first set of time-frequency resources in the time domain are completely Overlapped (full overlaid).

As an embodiment, each Symbol (Symbol) included in the time domain by the target subset of time Frequency resources is an OFDM (Orthogonal Frequency Division Multiplexing) Symbol, and each Symbol (Symbol) included in the time domain by the first set of time Frequency resources is an OFDM (Orthogonal Frequency Division Multiplexing) Symbol.

As an embodiment, each Symbol (Symbol) included in the time domain by the target subset of time Frequency resources is a DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) Symbol, and each Symbol (Symbol) included in the time domain by the first set of time Frequency resources is a DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) Symbol.

As an embodiment, each Symbol (Symbol) comprised by the target subset of time-frequency resources in the time domain is a multi-carrier Symbol, and each Symbol (Symbol) comprised by the first set of time-frequency resources in the time domain is a multi-carrier Symbol.

As an embodiment, each Symbol (Symbol) included in the time domain by the target subset of time frequency resources includes a Cyclic Prefix (CP) and a Data Symbol (Data Symbol), and each Symbol (Symbol) included in the time domain by the first set of time frequency resources includes a Cyclic Prefix (CP) and a Data Symbol (Data Symbol).

As an embodiment, the target subset of time-frequency resources and the first set of time-frequency resources comprise only one same symbol in the time domain.

As an embodiment, the target subset of time-frequency resources and the first set of time-frequency resources comprise more than one same symbol in the time domain.

As an embodiment, all symbols included in the time domain of the target time-frequency resource subset and all symbols included in the time domain of the first set of time-frequency resources are corresponding to the same.

As an embodiment, the target subset of time-frequency resources comprises a symbol in the time domain other than the symbol comprised by the first set of time-frequency resources in the time domain.

As an embodiment, the first set of time-frequency resources comprises in the time domain a symbol other than the symbol comprised in the time domain by the target subset of time-frequency resources.

As an embodiment, the type of the first node apparatus is a Reduced Capability (RedCap) User Equipment (UE).

As an embodiment, the type of the first node device is a low bandwidth user equipment.

As an embodiment, the type of the first node device is a low complexity user equipment.

As an embodiment, the type of the first node device is a user equipment with low bandwidth and reduced number of antennas.

As an embodiment, the type of the first node device is a user equipment with a Radio Frequency (RF) bandwidth below a first threshold, and the first threshold is predefined. As a subsidiary embodiment of the above embodiment, said first threshold value is equal to 20 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold value is equal to 10 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold is equal to 50 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold value is equal to 100 MHz.

As an embodiment, the type of the first node device is a user equipment with bandwidth below a first threshold in Frequency Range 1(FR1, Frequency Range 1), or the type of the first node device is a user equipment with bandwidth below a second threshold in Frequency Range 2(FR2, Frequency Range 2), the first threshold being predefined, the second threshold being predefined. As a subsidiary embodiment of the above embodiment, said first threshold value is equal to 20 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold value is equal to 10 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold is equal to 50 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold value is equal to 100 MHz.

As an embodiment, the type of the first node device is a user device whose Radio Frequency (RF) bandwidth is lower than a first threshold in a Frequency Range 1(FR1, Frequency Range 1), or the type of the first node device is a user device whose Radio Frequency (RF) bandwidth is lower than a second threshold in a Frequency Range 2(FR2, Frequency Range 2), the first threshold is predefined, and the second threshold is predefined. As a subsidiary embodiment of the above embodiment, said first threshold value is equal to 20 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold value is equal to 10 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold is equal to 50 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold value is equal to 100 MHz.

As an embodiment, the type of the first node device is a user equipment whose Channel Bandwidth (Channel Bandwidth) is lower than a first threshold value in a Frequency Range 1(FR1, Frequency Range 1), or the type of the first node device is a user equipment whose Channel Bandwidth (Channel Bandwidth) is lower than a second threshold value in a Frequency Range 2(FR2, Frequency Range 2), the first threshold value being predefined, the second threshold value being predefined. As a subsidiary embodiment of the above embodiment, said first threshold value is equal to 20 MHz. As a further subsidiary embodiment of the above embodiment, said first threshold value is equal to 10 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold is equal to 50 MHz. As a further subsidiary embodiment of the above embodiment, said second threshold value is equal to 100 MHz.

As an embodiment, the type of the first node device is a user equipment with a capability lower than that of an nr (new radio) version 15(Release 15) user equipment.

As an embodiment, the type of the first node device is a user equipment of type r (category r).

As an embodiment, the type of the first node device is a user equipment type (Category) newly introduced in NR version 17(Release 17).

As an embodiment, the type of the first node device is a type (Category) of a user equipment for Reduced Capability (RedCap) newly introduced in NR version 17(Release 17).

As an embodiment, the type of the first node device is one of W device types, the W device types including a Reduced Capability (red Capability) user device type and a Non-Reduced Capability (Non-red Capability) user device type, and W is a positive integer greater than 1.

As an embodiment, the type of the first node device is one of W device types, where the W device types include a device type that is a user equipment for Reduced Capability (red Capability), the W device types include a device type that is a user equipment for version 15/version 16(Release 15/Release 16), and W is a positive integer greater than 1.

As an embodiment, the type of the first node device is one of W device types, where two device types exist in the W device types, and W is a positive integer greater than 1, and the two device types are respectively for different user devices with different minimum radio frequency bandwidths (RF bandwidths).

As an embodiment, the type of the first node device is one of W device types, where two device types exist in the W device types, and W is a positive integer greater than 1, where the two device types are respectively configured for different minimum transmission bandwidths (transmission bandwidth configurations).

As an embodiment, the type of the first node device is one of W device types, where two device types exist in the W device types, and W is a positive integer greater than 1, and the two device types are respectively for user equipment with different minimum channel bandwidths (channel bandwidths).

As an embodiment, the first broadcast signal further carries a first type indication, the first type indication being used to indicate a type of a target recipient of the first broadcast signal.

As an embodiment, the first broadcast signal further carries a first type indication, which is used to indicate a type of a target receiver of mib (master Information block) carried by the first broadcast signal.

As an embodiment, the first broadcast signal further carries a first type indication, which is used to indicate a type of information carried by the first broadcast signal.

As an embodiment, the first broadcast signal further carries a first type indication, and the first type indication is used to indicate a type of broadcast channel information (BCCH-BCH-message type) carried by the first broadcast signal.

As an embodiment, the first broadcast signal further carries a first type indication, which is used to indicate whether information carried by the first broadcast signal is MIB or message type extension (messageclasssextension).

As an embodiment, the first broadcast signal further carries a first type indication, the first type indication being used to indicate whether information carried by the first broadcast signal is MIB or message type extension (messageclasssextension); when the first type indication indicates that the information carried by the first broadcast signal is a message type extension, the ue belonging to the type of the first node device in this application reads a message in the message type extension carried by the first broadcast signal.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: the type of the first node device is used by the first node device in this application to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal according to a given conditional relationship.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal according to a given correspondence.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: the target time frequency resource subset is occupied by the first broadcast signal and the target time frequency resource subset is not occupied by the first broadcast signal and respectively corresponds to different user equipment types.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: the type of the first node device is one of W device types, wherein W is a positive integer greater than 1; the first device type is one of the W device types; when the type of the first node device is the first device type, the target subset of time-frequency resources is occupied by the first broadcast signal; when the type of the first node device is a device type other than the first one of the W-device types, the target subset of time-frequency resources is not occupied by the first broadcast signal.

As an embodiment, the above sentence "the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal" includes the following meanings: when the first node device is a reduced capability user device, the target subset of time-frequency resources is occupied by the first broadcast signal; when the first node device is a type of user equipment other than a reduced capability user equipment, the target subset of time-frequency resources is not occupied by the first broadcast signal.

As one embodiment, the first subcarrier spacing is in units of hertz (Hz).

As one embodiment, the unit of the first subcarrier spacing is kilohertz (kHz).

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, 120kHz, 240 kHz.

As an embodiment, a subcarrier spacing of any one subcarrier included in the frequency domain of the first set of time and frequency resources is equal to the first subcarrier spacing.

As an embodiment, the first set of time-frequency resources includes one subcarrier in the frequency domain with a subcarrier spacing not equal to the first subcarrier spacing.

As an embodiment, a subcarrier spacing of any one subcarrier included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing.

As an embodiment, the subcarrier spacing of one subcarrier comprised in the frequency domain of the second set of time-frequency resources is not equal to the first subcarrier spacing.

As an embodiment, the above sentence "the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing" includes the following meanings: the frequency Band (Band) to which the first set of time-frequency resources belongs in the frequency domain is used by the first node device in the present application to determine the first subcarrier spacing.

As an embodiment, the above sentence "the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing" includes the following meanings: the number of frequency bands (bands) to which the first set of time-frequency resources belongs in the frequency domain is used to determine the first subcarrier spacing.

As an embodiment, the above sentence "the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing" includes the following meanings: a Frequency Range (FR) to which a Frequency Band (Band) to which the first set of time-Frequency resources belongs in a Frequency domain belongs is used to determine the first subcarrier spacing.

As an embodiment, the above sentence "the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing" includes the following meanings: the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used to determine the first subcarrier spacing according to a predefined correspondence.

As an embodiment, the above sentence "the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing" includes the following meanings: the frequency band of the first set of time-frequency resources in the frequency domain is one of P1 frequency bands, the P1 is a positive integer greater than 1, the P1 frequency bands respectively correspond to P1 subcarrier spacing sets one by one, and any one subcarrier spacing set in the P1 subcarrier spacing sets comprises a positive integer of subcarrier spacing; the first subcarrier spacing set is one of the P1 subcarrier spacing sets, and is a subcarrier spacing set corresponding to a frequency band to which the first time-frequency resource set belongs in a frequency domain, and the first subcarrier spacing belongs to the first subcarrier spacing set.

As an embodiment, the first subcarrier spacing is also used to determine whether the first broadcast signal occupies the target subset of time-frequency resources.

As an embodiment, the frequency band to which the first set of time-frequency resources belongs in the frequency domain is also used for determining whether the first broadcast signal occupies the target subset of time-frequency resources.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: the target index is used by the first node device in this application to determine whether the first broadcast signal carries the first information block.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" is achieved by claim 7 in the present application.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: the value range of the target index is used to determine whether the first broadcast signal carries the first information block.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: a magnitude relationship of a comparison between the target index and a target threshold is used to determine whether the first broadcast signal carries the first information block, the target threshold being predefined.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: a magnitude relationship of a comparison between the target index and a target threshold is used to determine whether the first broadcast signal carries the first information block, the target threshold being related to the first subcarrier spacing.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: the target index is used to indicate whether the first broadcast signal carries the first information block.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: when the target index is equal to one of Q1 alternative indexes, the first broadcast signal carries the first information block; when the target index is equal to an index other than the Q1 candidate indexes, the first broadcast signal does not carry the first information block; the Q1 alternative indices are predetermined.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: the target index is used to implicitly indicate whether the first broadcast signal carries the first information block.

As an example, the above sentence "the target index is used to determine whether the first broadcast signal carries a first information block" includes the following meanings: the target index is used to indirectly indicate whether the first broadcast signal carries the first information block.

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first information block is used by the first node device in this application to determine a Control Resource Set (CORESET).

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first information block is used to explicitly indicate a Control Resource Set (CORESET).

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first information block is used to implicitly indicate a Control Resource Set (CORESET).

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first information block is used to indicate a Control Resource Set #0(CORESET #0, Control Resource Set # 0).

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first Information Block is used to indicate that a Physical Downlink Shared Channel (PDSCH) Control Resource Set (core Set) carrying an SIB1(System Information Block 1) is scheduled.

As an example, the above sentence "the first information block is used to determine a set of control resources" includes the following meanings: the first information block is used to indicate scheduling of a Physical Downlink Shared Channel (PDSCH) Control Resource Set (CORESET) carrying an rmsi (remaining System information).

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (evolved packet cores) 210, HSS (Home Subscriber Server)/UDMs (unified data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/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/evolved node B (gbb/eNB) 203 and other gbbs (enbs) 204. The gbb (enb)203 provides user and control plane protocol termination towards the UE 201. The gNB (eNB)203 may be connected to other gNB (eNB)204 via an Xn/X2 interface (e.g., backhaul). The gnb (enb)203 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 (transmit receive node), or some other suitable terminology. The gNB (eNB)203 provides the UE201 with an access point to the 5GC/EPC 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, non-terrestrial base station communications, satellite mobile communications, 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 terrestrial vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB (eNB)203 is connected to 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the UE201 supports reduced capability transmission.

As an embodiment, the UE201 supports transmission of a narrow radio frequency bandwidth.

As an embodiment, the gnb (enb)201 corresponds to the second node device in this application.

As an embodiment, the gbb (enb)201 supports and reduces communication of capable user equipments.

As an embodiment, the gbb (enb)201 supports communication with a user equipment with a narrow radio frequency bandwidth.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 showing the radio protocol architecture of the control plane 300 for a first node device (UE or gNB) and a second node device (gNB or UE) 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 node device and the second node device 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 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 for a first node device between second node devices. 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 node devices. The MAC sublayer 302 is also responsible for HARQ operations. A 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 node device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first node device and the second node device is 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 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 node device in the present application.

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

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

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

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

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

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

Example 4

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

A controller/processor 490, a data source/buffer 480, a receive processor 452, a transmitter/receiver 456, and a transmit processor 455 may be included in the first node device (450), the transmitter/receiver 456 including an antenna 460.

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 node device (410), the transmitter/receiver 416 including an antenna 420.

In the DL (Downlink), upper layer packets, such as upper layer information included in a first broadcast signal in the present application, are 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 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 node device 450, such as higher layer information included in the first broadcast signal in this application, all generated in controller/processor 440. 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., such as the physical layer signal of the first broadcast signal and the physical layer signaling included in the first broadcast signal, the physical layer signal of the first synchronization signal, and the physical layer signal of the first reference signal, etc. as described herein, are performed 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 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 the physical layer signal of the first broadcast signal and the physical layer signaling carried by the first broadcast signal, reception of the physical layer signal of the first synchronization signal, reception of the physical layer signal of the first reference signal, 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 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 high-level information carried by the first broadcast 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.

As an embodiment, the first node apparatus 450 apparatus includes: 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 node apparatus 450 at least: receiving a first synchronization signal; receiving a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

As an embodiment, the first node apparatus 450 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first synchronization signal; receiving a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

For one embodiment, the second node device 410 apparatus includes: 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 node device 410 apparatus at least: transmitting a first synchronization signal; sending a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

For one embodiment, the second node device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting a first synchronization signal; sending a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

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

For one embodiment, the first node apparatus 450 is a reduced capability user equipment.

For one embodiment, the first node apparatus 450 is a user equipment with a narrow radio frequency bandwidth.

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

For one embodiment, the second node device 410 is a base station device that supports and reduces capability of user equipment communications.

As an embodiment, the second node device 410 is a base station device supporting communication with user devices having a narrow radio frequency bandwidth.

For one embodiment, a receiver 456 (including an antenna 460) and a receive processor 452 are used to receive the first synchronization signal.

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

For one embodiment, a receiver 456 (including an antenna 460) and a receive processor 452 are used to receive the first reference signal in this application.

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

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 broadcast signal in this application.

For one embodiment, transmitter 416 (including antenna 420) and transmit processor 415 are used to transmit the first reference 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 second node apparatus N500 is a maintenance base station of the serving cell of the first node apparatus U550. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.

For theSecond node device N500The first synchronization signal is transmitted in step S501, the first reference signal is transmitted in step S502, and the first broadcast signal is transmitted in step S503.

For theFirst node device U550The first synchronization signal is received in step S551, the first reference signal is received in step S552, and the first broadcast signal is received in step S553.

In embodiment 5, the first broadcast signal in the present application carries a target index, and the target index is a non-negative integer; the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources and the second set of time-frequency resources are orthogonal, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in a time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, the first information block being used to determine a set of control resources; a first sequence is used for generating the first reference signal, the first sequence being mapped on resource elements comprised by a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

Example 6

Embodiment 6 illustrates a schematic diagram of X1 modulation symbols according to an embodiment of the present application, as shown in fig. 6. In fig. 6, each rectangle represents one modulation symbol included in the first modulation symbol sequence, and each slashed rectangle represents one modulation symbol of X1 modulation symbols.

In embodiment 6, a first modulation symbol sequence is used to generate the first broadcast signal in this application, where the first modulation symbol sequence includes a positive integer greater than 1 of modulation symbols arranged in sequence, where the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second time-frequency resource set in this application, and any resource element included in the second time-frequency resource set and any resource element included in the first time-frequency resource set in this application occupy different symbols in a time domain; when the target time-frequency resource subset is occupied by the first broadcast signal, X1 modulation symbols in the first modulation symbol sequence are mapped onto resource elements included in the target time-frequency resource subset, where X1 is a positive integer greater than 1.

As an embodiment, each modulation symbol included in the first modulation symbol sequence is modulated by QPSK (Quadrature Phase Shift Keying).

As an embodiment, all Modulation symbols included in the first Modulation symbol sequence adopt the same Modulation Scheme (Modulation Scheme).

As an embodiment, all the Modulation symbols included in the first Modulation symbol sequence adopt one of BPSK (Binary Phase Shift Keying), pi/2 BPSK, QPSK (Quadrature Phase Shift Keying), 16QAM (Quadrature Amplitude Modulation), 64QAM, and 256QAM Modulation schemes.

As an embodiment, the above sentence "the first modulation symbol sequence is used to generate the first broadcast signal" includes the following meanings: the first modulation symbol sequence is used by the second node device in the present application to generate the first broadcast signal.

As an embodiment, the above sentence "the first modulation symbol sequence is used to generate the first broadcast signal" includes the following meanings: the first modulation symbol sequence is mapped to physical resources (Mapping to physical resources) and OFDM baseband signal generation (OFDM baseband signal generation) to generate the first broadcast signal.

As an embodiment, the above sentence "the first modulation symbol sequence is used to generate the first broadcast signal" includes the following meanings: the first Modulation symbol sequence is mapped to physical resources (Mapping to physical resources), OFDM baseband signal generation (OFDM baseband signal generation), and Modulation and up-conversion (Modulation and up-conversion) to generate the first broadcast signal.

As an embodiment, the above sentence "the first modulation symbol sequence is used to generate the first broadcast signal" includes the following meanings: all modulation symbols included in the first modulation symbol sequence are used to generate the first broadcast signal.

As an embodiment, the above sentence "the first modulation symbol sequence is used to generate the first broadcast signal" includes the following meanings: the partial modulation symbols included in the first modulation symbol sequence are used to generate the first broadcast signal.

As an embodiment, all modulation symbols included in the first modulation symbol sequence are sequentially resource-mapped onto resource elements included in the second time-frequency resource set according to a given order.

As an embodiment, some modulation symbols included in the first modulation symbol sequence are resource-mapped to resource elements included in the second time-frequency resource set in sequence according to a given order.

As an embodiment, the modulation symbols included in the first modulation symbol sequence are sequentially mapped to the resource elements included in the second time-frequency resource set according to the second order of the frequency domain, the first time domain and the second time domain.

As an embodiment, the modulation symbols included in the first modulation symbol sequence are sequentially mapped to the resource elements included in the second time-frequency resource set according to the sequence of the first frequency domain and the second time domain.

As an embodiment, the modulation symbols included in the first modulation symbol sequence are sequentially mapped to the resource elements included in the second time-frequency resource set according to the sequence of the time domain first and the frequency domain second.

As an embodiment, any resource element included in the second time-frequency resource set carries one modulation symbol included in the first modulation symbol sequence.

In an embodiment, the symbols included in the time domain of the second set of time-frequency resources and the symbols included in the first set of time-frequency resources are different.

As an embodiment, no one symbol is comprised in the time domain by both the first set of time-frequency resources and the second set of time-frequency resources.

In one embodiment, the first set of time-frequency resources and the second set of time-frequency resources are orthogonal in the time domain.

As one embodiment, the X1 modulation symbols are predefined X1 modulation symbols in the first modulation symbol sequence.

As one embodiment, the X1 modulation symbols are configurable X1 modulation symbols in the first modulation symbol sequence.

As an embodiment, the X1 modulation symbols are X1 consecutive arranged modulation symbols in the first modulation symbol sequence.

As an embodiment, the X1 modulation symbols are X1 modulation symbols that are not contiguously arranged in the first modulation symbol sequence.

As an embodiment, there are two discontinuous arrangements of modulation symbols in the first modulation symbol sequence in the X1 modulation symbols.

As an embodiment, any one of the X1 modulation symbols belongs to the first modulation symbol sequence.

As an embodiment, the X1 modulation symbols are mapped in the frequency domain on a part of subcarriers comprised in the frequency domain by the second set of time-frequency resources.

As an embodiment, the position distribution of the X1 modulation symbols in the first modulation symbol sequence is fixed.

As an embodiment, the distribution of positions of the X1 modulation symbols in the first modulation symbol sequence is related to the first subcarrier spacing.

For one embodiment, a position distribution of the X1 modulation symbols in the first modulation symbol sequence is configurable.

As an embodiment, the position distribution of the X1 modulation symbols in the first modulation symbol sequence is related to the position of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, any one of the X1 modulation symbols is mapped to one resource element included in the target time-frequency resource subset.

As an embodiment, all of the X1 modulation symbols are mapped onto resource elements comprised by the target subset of time-frequency resources.

As an embodiment, the X1 modulation symbols are mapped onto X1 resource elements included in the target time-frequency resource subset, respectively.

As an embodiment, the target subset of time-frequency resources comprises a number of resource elements equal to the X1.

As an embodiment, the target subset of time-frequency resources comprises a number of resource elements not equal to the X1.

As an embodiment, there is one modulation symbol in the X1 modulation symbols that is not mapped to the resource elements included in the target time-frequency resource subset.

As an embodiment, one of the X1 modulation symbols is mapped to resource elements other than the resource elements included in the target time-frequency resource subset.

Example 7

Embodiment 7 illustrates a schematic diagram of M1 subcarriers according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the horizontal axis represents time, the vertical axis represents frequency, each unfilled rectangle arranged according to frequency represents a subcarrier, the diagonally filled rectangle represents resource elements included in the first set of time-frequency resources, the cross-hatched rectangle represents resource elements included in the second set of time-frequency resources, and the cross-hatched rectangle represents resource elements included in the target subset of time-frequency resources.

In embodiment 7, the second set of time-frequency resources in this application includes M subcarriers in the frequency domain, where the M subcarriers include M1 subcarriers, the M1 is a positive integer greater than 1, and the M is a positive integer not less than the M1; any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols in this application, and the M1 subcarriers are orthogonal to the subcarriers included in the frequency domain in the first set of time-frequency resources in this application; the distribution of the M1 sub-carriers among the M sub-carriers is predefined, or the distribution of the M1 sub-carriers among the M sub-carriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain in the present application.

As an embodiment, the second set of time-frequency resources comprises only the M subcarriers in the frequency domain.

As an embodiment, the second set of time-frequency resources further includes subcarriers other than the M subcarriers in the frequency domain.

As one embodiment, the M is equal to 240.

As one embodiment, the M is less than 240.

As one embodiment, the M is greater than 240.

As one example, M is equal to 96.

As an embodiment, the number of subcarriers occupied by resource elements included in the second time-frequency resource set on different time-domain symbols is different.

As an embodiment, the number of subcarriers occupied by resource elements included in the second time-frequency resource set on different time-domain symbols is the same.

As an embodiment, any one of the M1 subcarriers is one of the M subcarriers.

As an embodiment, the above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one subcarrier of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: resource elements included in the second time-frequency resource set mapped by any one of the X1 modulation symbols occupy one of the M1 subcarriers in the frequency domain.

As an embodiment, the above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one subcarrier of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: any one of the X1 modulation symbols mapped on resource elements included in the second set of time-frequency resources occupies one of the M1 subcarriers in the frequency domain.

The above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: modulation symbols mapped on resource elements comprised by the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain constitute the X1 modulation symbols.

The above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: the compensating resource element subset includes resource elements occupying one of the M1 subcarriers included in the second set of time-frequency resources, and the modulation symbols mapped on the resource elements included in the compensating resource element subset in the first modulation symbol sequence in this application constitute the X1 modulation symbols.

The above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: the compensating resource element subset comprises resource elements occupying one of the M1 subcarriers included in the second set of time-frequency resources, and the modulation symbol mapped on any one of the resource elements included in the compensating resource element subset is one of the X1 modulation symbols.

The above sentence "any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols" includes the following meanings: the compensating resource element subset includes resource elements occupying one of the M1 subcarriers included in the second time-frequency resource set, a modulation symbol mapped on any one resource element included in the compensating resource element subset is one of the X1 modulation symbols, and one modulation symbol of the X1 modulation symbols is not mapped on any one resource element included in the compensating resource element subset.

As an embodiment, there is one modulation symbol of the X1 modulation symbols mapped on resource elements comprised by the second set of time-frequency resources but occupying one subcarrier other than the M1 subcarriers in the frequency domain.

As an example, the above sentence "the M1 subcarriers are orthogonal to the subcarriers included in the first set of time and frequency resources in the frequency domain" includes the following meanings: there is not one subcarrier belonging to both the M1 subcarriers and the subcarriers included in the first set of time-frequency resources in the frequency domain.

As an example, the above sentence "the M1 subcarriers are orthogonal to the subcarriers included in the first set of time and frequency resources in the frequency domain" includes the following meanings: any one of the M1 subcarriers is a subcarrier of the first set of time-frequency resources outside the subcarriers included in the frequency domain.

As an example, the above sentence "the M1 subcarriers are orthogonal to the subcarriers included in the first set of time and frequency resources in the frequency domain" includes the following meanings: there are no same subcarriers in the M1 subcarriers as among the subcarriers included in the frequency domain in the first set of time and frequency resources.

As an example, the above sentence "the M1 subcarriers are orthogonal to the subcarriers included in the first set of time and frequency resources in the frequency domain" includes the following meanings: any subcarrier in the M1 subcarriers and any subcarrier included in the first time-frequency resource set in the frequency domain are not the same.

As an example, the above sentence "the M1 subcarriers are orthogonal to the subcarriers included in the first set of time and frequency resources in the frequency domain" includes the following meanings: there are no overlapping (Overlapped) subcarriers among the M1 subcarriers and among the subcarriers included in the frequency domain in the first set of time and frequency resources.

As an embodiment, the "distribution of the M1 subcarriers among the M subcarriers" refers to: the M1 subcarriers are distributed in frequency domain locations among the M subcarriers.

As an embodiment, the "distribution of the M1 subcarriers among the M subcarriers" refers to: the M subcarriers are respectively indexed, and the indexes of the M1 subcarriers in the M subcarriers are distributed.

As an embodiment, the "distribution of the M1 subcarriers among the M subcarriers" refers to: the M1 subcarriers are respectively at frequency domain locations among the M subcarriers.

As an embodiment, the "distribution of the M1 subcarriers among the M subcarriers" refers to: a distribution Pattern (Pattern) of the M1 subcarriers among the M subcarriers.

As an embodiment, the "distribution of the M1 subcarriers among the M subcarriers" refers to: the M1 subcarriers are either M1 subcarriers located at the highest frequency or M1 subcarriers at the lowest frequency among the M subcarriers.

As an example, the above sentence "the distribution of the M1 subcarriers among the M subcarriers is predefined" includes the following meanings: the distribution of the M1 subcarriers among the M subcarriers is fixed.

As an example, the above sentence "the distribution of the M1 subcarriers among the M subcarriers is predefined" includes the following meanings: the distribution of the M1 subcarriers among the M subcarriers is predefined according to the first subcarrier spacing.

As an example, the above sentence "the distribution of the M1 subcarriers among the M subcarriers is predefined" includes the following meanings: the distribution of the M1 subcarriers among the M subcarriers is predefined according to a frequency band to which the M subcarriers belong in a frequency domain.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: and the index of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: and the index of the time domain resource occupied by the first synchronous signal in a Frame (Frame) to which the time domain belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: and the index of the time domain resource occupied by the first synchronous signal in a Half Frame (Half-Frame) to which the time domain belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: and the index of a subframe (subframe) to which the time domain resource occupied by the first synchronization signal belongs in the time domain.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: and the index of the time domain resource occupied by the first synchronous signal in a slot (slot) to which the time domain belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: an index of a SS/PBCH (Synchronization Signal/Physical Broadcast Channel) Block (Block) to which the first Synchronization Signal belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: -an index of a Block (Block) of Candidate (wideband) SS/PBCH (Synchronization Signal/Physical Broadcast Channel) to which said first Synchronization Signal belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: the lowest L1 Bits (L1 LSB, Least Signal Bits) of the index of the Candidate (Broadcast) SS/PBCH (Synchronization Signal/Physical Broadcast Channel) Block (Block) to which the first Synchronization Signal belongs, and L1 is a positive integer.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: the lowest 4 Bits (4LSB, Least Significant Bits) of the index of the Candidate (SS/PBCH) Block (Block) to which the first Synchronization Signal belongs.

As an embodiment, the "position of the time domain resource occupied by the first synchronization signal in the time domain" refers to: the highest L2 Bits (L2 MSB) of the index of the Candidate (Synchronization Signal/Physical Broadcast Channel) Block (Block) to which the first Synchronization Signal belongs, L2 being a positive integer.

As an embodiment, the above sentence "the distribution of the M1 subcarriers in the M subcarriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain" includes the following meanings: the distribution of the M1 sub-carriers in the M sub-carriers and the position of the time domain resource occupied by the first synchronization signal in the time domain have a corresponding relationship.

As an embodiment, the above sentence "the distribution of the M1 subcarriers in the M subcarriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain" includes the following meanings: the distribution of the M1 sub-carriers in the M sub-carriers varies with the position of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, the above sentence "the distribution of the M1 subcarriers in the M subcarriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain" includes the following meanings: the position of the time domain resource occupied by the first synchronization signal in the time domain is used to determine the distribution of the M1 subcarriers among the M subcarriers.

As an embodiment, the above sentence "the distribution of the M1 subcarriers in the M subcarriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain" includes the following meanings: the distribution of the M1 subcarriers in the M subcarriers is one of N1 alternative distributions, the position of the time domain resource occupied by the first synchronization signal in the time domain is one of N1 alternative positions, the N1 alternative distributions are in one-to-one correspondence with the N1 alternative positions, and the N1 is a positive integer greater than 1.

Example 8

Embodiment 8 illustrates a schematic diagram of M2 subcarriers according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the horizontal axis represents time, the vertical axis represents frequency, each unfilled rectangle arranged according to frequency represents a subcarrier, the diagonally filled rectangle represents resource elements included in the first set of time-frequency resources, the cross-hatched rectangle represents resource elements included in the second set of time-frequency resources, and the cross-hatched rectangle represents resource elements included in the target subset of time-frequency resources.

In embodiment 8, the target time-frequency resource subset in this application includes M2 subcarriers in the frequency domain, and any one subcarrier in the M2 subcarriers is one subcarrier in subcarriers included in the frequency domain by the second time-frequency resource set in this application; the second set of time-frequency resources includes consecutive subcarriers in the frequency domain, the two most marginal subcarriers included in the frequency domain by the second set of time-frequency resources are two subcarriers of the M2 subcarriers, respectively, and the M2 is a positive integer greater than 1.

As an embodiment, the target subset of time-frequency resources comprises only the M2 subcarriers in the frequency domain.

As an embodiment, the target subset of time-frequency resources further includes subcarriers other than the M2 subcarriers in the frequency domain.

As an embodiment, the M2 subcarriers occupy contiguous frequency domain resources.

As an example, the M2 subcarriers occupy discrete frequency domain resources.

For an embodiment, the M2 is not greater than the number of subcarriers included in the frequency domain by the second time-frequency resource.

As an example, the M2 is not greater than the M in this application.

As one example, the M2 is smaller than the M1 in the present application.

As an example, the M2 is equal to the M1 in this application.

As one example, the M2 is greater than the M1 herein.

As an embodiment, the second set of time-frequency resources comprises the M2 subcarriers in the frequency domain.

As an embodiment, any one of the M2 subcarriers is comprised by the second set of time-frequency resources in the frequency domain.

As an embodiment, the second set of time-frequency resources further includes subcarriers other than the M2 subcarriers in the frequency domain.

As an embodiment, the second set of time-frequency resources comprises only the M2 subcarriers in the frequency domain.

As an embodiment, the subcarriers included in the frequency domain by the second set of time-frequency resources occupy consecutive frequency domain resources.

As an embodiment, the subcarriers comprised by the second set of time-frequency resources in the frequency domain are subcarriers consecutively indexed in the frequency domain.

As an embodiment, the absence of one subcarrier of the second set of time-frequency resources outside the subcarriers comprised in the frequency domain is in the frequency domain between two subcarriers comprised in the frequency domain by the second set of time-frequency resources.

As an embodiment, the "two most marginal subcarriers included in the frequency domain by the second time-frequency resource set" refers to: the second time frequency resource set comprises the subcarrier with the largest index and the subcarrier with the smallest index in the frequency domain.

As an embodiment, the "two most marginal subcarriers included in the frequency domain by the second time-frequency resource set" refers to: and the second time frequency resource set comprises the subcarriers occupying the highest frequency and the subcarriers occupying the lowest frequency in the frequency domain.

As an embodiment, the "two most marginal subcarriers included in the frequency domain by the second time-frequency resource set" refers to: the second time frequency resource set comprises subcarriers with the highest central frequency and subcarriers with the lowest central frequency in the frequency domain.

As an embodiment, the "two most marginal subcarriers included in the frequency domain by the second time-frequency resource set" refers to: and the second time frequency resource set comprises subcarriers distributed at two ends of the frequency domain in the frequency domain.

As an embodiment, the two edge-most subcarriers included in the frequency domain of the second set of time-frequency resources are respectively the two edge-most subcarriers of the M2 subcarriers.

As an embodiment, an edge-most subcarrier included in the frequency domain of the second time-frequency resource set is a non-edge subcarrier of the M2 subcarriers.

As an embodiment, the M2 subcarriers are the M2 subcarriers closest to the edge included in the frequency domain by the second set of time-frequency resources.

As an embodiment, M3 subcarriers of the M2 subcarriers are M3 subcarriers with the highest central frequency point included in the frequency domain of the second time-frequency resource set, M4 subcarriers of the M2 subcarriers are M4 subcarriers with the lowest central frequency point included in the frequency domain of the second time-frequency resource set, M3 is a positive integer not greater than M2, and M4 is a positive integer not greater than M2. As an additional example of the above embodiment, the sum of the M3 and the M4 is equal to the M2. As another sub-embodiment of the above embodiment, the M3 and the M4 are equal, and the sum of the M3 and the M4 is equal to the M2. As an additional embodiment to the above embodiment, the sum of the M3 and the M4 is less than the M2.

As an embodiment, the maximum frequency interval spanned by the M2 subcarriers is the same as the maximum frequency interval spanned by the second set of time-frequency resources in the frequency domain.

Example 9

Embodiment 9 shows a schematic diagram of a target subcarrier according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the horizontal axis represents time, the vertical axis represents frequency, each unfilled rectangle arranged according to frequency represents a subcarrier, a dot filled rectangle arranged according to frequency represents a target subcarrier, a slashed filled rectangle represents resource elements included in a first time-frequency resource set, a cross-hatched filled rectangle represents resource elements included in a second time-frequency resource set, and a cross-hatched filled rectangle represents resource elements included in a target time-frequency resource subset.

In embodiment 9, a target subcarrier is a subcarrier of the target time-frequency resource subset in this application, which is outside a subcarrier included in a frequency domain, and the target subcarrier is a subcarrier of the first time-frequency resource set in this application, which is outside a subcarrier included in a frequency domain; the position of the target subcarrier in the frequency domain is between the position of the subcarrier, included in the frequency domain, of the target time-frequency resource subset in the frequency domain and the position of the subcarrier, included in the frequency domain, of the first time-frequency resource set in the frequency domain.

As one embodiment, the target subcarriers are idle subcarriers.

As an embodiment, the target subcarrier does not belong to the target subset of time-frequency resources nor to the first set of time-frequency resources in the frequency domain.

As an embodiment, the target subcarrier is used as a Guard band (Guard band) of a frequency domain.

As an embodiment, the target subcarrier is a Guard subcarrier (Guard subcarrier) of a frequency domain.

As an embodiment, the target subcarrier is a guard band between the first synchronization signal and the first broadcast signal in a frequency domain.

As an embodiment, the target subcarrier is orthogonal to the target subset of time-frequency resources in the frequency domain, and the target subcarrier is orthogonal to the first set of time-frequency resources.

As an embodiment, one symbol included in the time domain of the first set of time-frequency resources is occupied in the time domain, and resource elements occupying the target subcarrier are unoccupied in the frequency domain.

As an embodiment, one symbol comprised by the first set of time-frequency resources in the time domain is occupied in the time domain, and resource elements occupying the target subcarrier in the frequency domain are not used for transmission.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: the order of the target sub-carriers in the frequency domain.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: a center frequency of the target subcarrier.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: the frequency range of the frequency domain resources occupied by the target sub-carrier.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: an index of the target subcarrier.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: the index of the PRB to which the target subcarrier belongs and the index of the subcarrier of the target subcarrier in the PRB to which the target subcarrier belongs.

As an embodiment, the "position of the target subcarrier in the frequency domain" refers to: the absolute frequency range occupied by the target sub-carrier.

As an embodiment, the index of the target subcarrier is smaller than the index of any one subcarrier included in the target time-frequency resource subset in the frequency domain, and the index of the target subcarrier is larger than the index of any one subcarrier included in the first time-frequency resource set in the frequency domain.

As an embodiment, the index of the target subcarrier is greater than the index of any one subcarrier included in the target time-frequency resource subset in the frequency domain, and the index of the target subcarrier is less than the index of any one subcarrier included in the first time-frequency resource set in the frequency domain.

As an embodiment, a center frequency of the target subcarrier is less than a center frequency of any one subcarrier included in the target time-frequency resource subset in the frequency domain, and the center frequency of the target subcarrier is greater than the center frequency of any one subcarrier included in the first time-frequency resource set in the frequency domain.

As an embodiment, a center frequency of the target subcarrier is greater than a center frequency of any one subcarrier included in the target time-frequency resource subset in the frequency domain, and the center frequency of the target subcarrier is less than the center frequency of any one subcarrier included in the first time-frequency resource set in the frequency domain.

As an embodiment, all subcarriers occupied by the target subset of time-frequency resources and the first set of time-frequency resources together in the frequency domain are discrete in the frequency domain.

As an embodiment, all subcarriers occupied by the target subset of time-frequency resources and the first set of time-frequency resources together in the frequency domain are discontinuous in the frequency domain.

As an embodiment, the target subset of time-frequency resources and the first set of time-frequency resources together occupy discontinuous frequency domain resources in the frequency domain.

As an embodiment, the target subcarrier exists as a guard subcarrier between subcarriers included in the target time-frequency resource subset and subcarriers included in the first time-frequency resource set.

Example 10

Example 10 illustrates a schematic diagram of a first ratio according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the horizontal axis represents time, the vertical axis represents frequency, a cross-hatched rectangular portion represents one resource element occupied by the first synchronization signal, and a diagonal-hatched rectangular portion represents one resource element occupied by the first broadcast signal.

In embodiment 10, a ratio between the transmission energy of each resource element occupied by the first synchronization signal in the present application and the transmission energy of each resource element occupied by the first broadcast signal in the present application is equal to a first ratio, where the first ratio is related to whether the target time-frequency resource subset is occupied by the first broadcast signal.

As an embodiment, the transmission energy of each Resource element occupied by the first synchronization signal is equal to epre (energy Per Resource element) of the first synchronization signal.

As an embodiment, the transmission energy of each Resource element occupied by the first broadcast signal is equal to epre (energy Per Resource element) of the first broadcast signal.

As an embodiment, the transmission energy of each resource element occupied by the first synchronization signal is not less than the transmission energy of each resource element occupied by the first broadcast signal.

As an embodiment, the transmission energy of each resource element occupied by the first synchronization signal is less than the transmission energy of each resource element occupied by the first broadcast signal.

As an embodiment, the transmission energy of each resource element occupied by the first synchronization signal and the transmission energy of each resource element occupied by the first broadcast signal may be equal or unequal.

As an example, the first ratio is expressed in logarithmic form.

As an example, the first ratio is expressed in dB.

As an example, the unit of the first ratio is dB.

As an example, the first ratio has no units.

As one example, the first ratio is a ratio between EPRE (energy Per Resource element).

As an example, the first ratio is greater than or equal to 1.

As an example, the first ratio is less than 1.

As an embodiment, the unit of the first ratio is dB, and the first ratio is greater than or equal to 0.

As an embodiment, the unit of the first ratio is dB, the first ratio being less than 0.

As an embodiment, the above sentence "whether the first ratio and the target time-frequency resource subset are occupied by the first broadcast signal" includes the following meanings: and a corresponding relation exists between the first ratio and whether the target time frequency resource subset is occupied by the first broadcast signal.

As an embodiment, the above sentence "whether the first ratio and the target time-frequency resource subset are occupied by the first broadcast signal" includes the following meanings: whether the target subset of time-frequency resources is occupied by the first broadcast signal is used to determine the first ratio.

As an embodiment, the above sentence "whether the first ratio and the target time-frequency resource subset are occupied by the first broadcast signal" includes the following meanings: the first ratio belongs to a first ratio set or the first ratio belongs to the second ratio set, the first ratio set comprises positive integer ratios, the second ratio set comprises positive integer ratios, and the first ratio set and the second ratio set are not the same; whether the target subset of time-frequency resources is occupied by the first broadcast signal is used to determine whether the first ratio belongs to the first set of ratios or the second set of ratios.

As an embodiment, the above sentence "whether the first ratio and the target time-frequency resource subset are occupied by the first broadcast signal" includes the following meanings: the first ratio belongs to a first ratio set or the first ratio belongs to the second ratio set, the first ratio set comprises positive integer ratios, the second ratio set comprises positive integer ratios, and the first ratio set and the second ratio set are not the same; the first ratio belongs to the first set of ratios when the target subset of time-frequency resources is occupied by the first broadcast signal; the first ratio belongs to the second set of ratios when the target subset of time-frequency resources is not occupied by the first broadcast signal.

As an embodiment, the above sentence "whether the first ratio and the target time-frequency resource subset are occupied by the first broadcast signal" includes the following meanings: whether the target time-frequency resource subset is occupied by the first broadcast signal or not is used for determining the value range of the first ratio.

Example 11

Embodiment 11 illustrates a schematic diagram of a relationship between a first index set and a second index set according to an embodiment of the present application, as shown in fig. 11. In fig. 11, the first column from the left represents the frequency range, the second column from the left represents the first index set, and the third column from the left represents the second index set.

In embodiment 11, the target index in the present application belongs to one of a first index set or a second index set, the first index set includes positive integer indexes greater than 1, and the second index set includes positive integer indexes greater than 1; when the target index belongs to the first index set, the first broadcast signal in the application carries the first information block in the application; when the target index belongs to the second index set, the first broadcast signal carries information other than the first information block.

For one embodiment, the first set of indices and the second set of indices are not the same.

For one embodiment, the first set of indices and the second set of indices comprise non-identical indices.

For one embodiment, any one of the indices included in the first index set is a non-negative integer.

For one embodiment, any one of the indexes included in the second index set is a non-negative integer.

As an embodiment, there is not one index belonging to both the first set of indices and the second set of indices.

As an embodiment, there is one index belonging to both the first index set and the second index set.

As an embodiment, any one of the indexes included in the first index set and any one of the indexes included in the second index set are different.

For one embodiment, the first set of indices includes one index equal to 0.

For one embodiment, any one of the indexes included in the first index set is greater than 0.

For one embodiment, any one of the indexes included in the second index set is greater than 0.

For one embodiment, the second set of indices includes an index equal to 0.

As one embodiment, the first set of indices includes a positive integer number greater than 1 consecutive non-negative integers.

As one embodiment, the second set of indices includes a positive integer number greater than 1 consecutive non-negative integers.

As an embodiment, any one of the indexes included in the second index set is larger than any one of the indexes included in the first index set.

As an embodiment, the first set of indices and the second set of indices are two Non-overlapping (Non-overlapped) Non-negative integer intervals, respectively.

As an embodiment, the target index belongs to the first index set, or the target index belongs to the second index set.

For one embodiment, the target index does not belong to an index set other than the first index set or the second index set.

As an embodiment, the target index is equal to an index included in the first index set, or the target index is equal to an index included in the second index set.

For one embodiment, the first set of indices includes a number of indices equal to 24.

As an embodiment, the first set of indices includes a number of indices equal to 12.

As an embodiment, the number of indexes included in the first index set is related to a Frequency Range (FR) to which a Frequency domain resource included in the first time-Frequency resource set belongs.

As an embodiment, the second set of indices includes a number of indices equal to 8.

As an embodiment, the second set of indices includes a number of indices equal to 20.

As an embodiment, a sum of the number of indexes included in the first index set and the number of indexes included in the second index set is fixed.

As an embodiment, the sum of the number of indexes comprised by the first index set and the number of indexes comprised by the second index set is equal to 32.

As an embodiment, a sum of the number of indexes included in the first index set and the number of indexes included in the second index set is related to a Frequency Range (FR) to which a Frequency domain resource included in the first time-Frequency resource set belongs.

As an embodiment, when the target index belongs to the first index set, the target index is used to determine a frequency domain position of a first subcarrier in a physical resource block to which the first subcarrier belongs, where the first subcarrier is a subcarrier with a lowest center frequency occupied by the first broadcast signal.

As an embodiment, when the target index belongs to the first index set, the target index is used to determine a frequency offset between a subcarrier with a lowest center frequency occupied by the first broadcast signal and a subcarrier with a lowest center frequency included in one Common Resource Block (CRB).

As an embodiment, when the target index belongs to the first index set, the first subcarrier is a subcarrier with a lowest center frequency occupied by the first broadcast signal, and the target index is used to determine a frequency offset between the first subcarrier and a subcarrier with a lowest center frequency included in a Common Resource Block (CRB) overlapping with the first subcarrier.

As an embodiment, when the target index belongs to the first index set, the first subcarrier is a subcarrier with a lowest center frequency occupied by the first broadcast signal, and the target index is used to determine the number of subcarriers spaced between the first subcarrier and a subcarrier with a lowest center frequency included in a Common Resource Block (CRB) having an overlapping (Overlapped) with the first subcarrier.

As an embodiment, when the target index belongs to the second index set, the first broadcast signal carries a second information block, the second information block is different from the first information block, and the second information block is used for determining a frequency domain position of a synchronization signal other than the first synchronization signal.

As an embodiment, when the target index belongs to the second index set, the first broadcast signal carries a second information block, the second information block is different from the first information block, and the second information block is used to determine a global synchronization signal number (GSCN) of a synchronization signal other than the first synchronization signal.

As an embodiment, when the target index belongs to the second index set, the first broadcast signal carries a second information block, the second information block is different from the first information block, and the second information block is used to determine a global synchronization signal number (GSCN) of a synchronization signal other than the first synchronization signal; the second information block and the first information block occupy the same Field (Field) in the first broadcast signal.

As an embodiment, when the target index belongs to the second index set, the first broadcast signal carries a second information block, the second information block is different from the first information block, and the second information block is used to determine a global synchronization signal number (GSCN) of a synchronization signal other than the first synchronization signal; the second information block and the first information block are two different interpretations of a same Field (Field) in the first broadcast signal.

As an embodiment, when the target index belongs to the first index set, the target index is used to determine a relative position relationship of the control resource set determined by the first information block in the frequency domain to the first time-frequency resource set.

As an embodiment, when the target index belongs to the first index set, whether the target index is greater than 0 is used to determine a relative position relationship of the control resource set determined by the first information block in the frequency domain to the first time-frequency resource set.

Example 12

Embodiment 12 illustrates a schematic diagram of a first reference signal 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 of the diagonally filled rectangles represents one resource element included in the first resource element set, and each of the cross-hatched rectangular portions represents one resource element included in the target resource element subset.

In embodiment 12, a first sequence is used for generating the first reference signal in this application, the first sequence being mapped on resource elements comprised in a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

As one embodiment, the first Reference Signal is a Demodulation Reference Signal (DMRS).

As one embodiment, the first Reference Signal is a Demodulation Reference Signal (DMRS) of the first broadcast Signal.

As an embodiment, the first Reference Signal is a Demodulation Reference Signal (DMRS) of PBCH.

As one embodiment, the first reference signal is a Baseband (Baseband) signal.

As one embodiment, the first reference signal is a Radio Frequency (Radio Frequency) signal.

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

As an embodiment, the first sequence is an m-sequence.

As an embodiment, the first sequence is a Gold sequence.

As one embodiment, the first sequence is a pseudo-random sequence.

As an embodiment, the first sequence generates the first reference Signal by Mapping to physical resources (Mapping to physical resources) and OFDM Baseband Signal Generation (OFDM Baseband and Signal Generation).

As an embodiment, the first sequence is mapped to physical resources (Mapping to physical resources), OFDM Baseband Signal Generation (OFDM Baseband Signal Generation), Modulation and up-conversion (Modulation and up-conversion) to generate the first reference Signal.

As an embodiment, the first sequence is used by the second node device in this application to generate the first reference signal.

As an embodiment, the complex symbols comprised by the first sequence are mapped on resource elements comprised by the first set of resource elements.

As an embodiment, the complex symbols included in the first sequence are mapped onto the resource elements included in the first set of resource elements by Mapping to physical resources (Mapping to physical resources).

As an embodiment, the complex symbols comprised by the first sequence are mapped on all resource elements comprised by the first set of resource elements.

As an embodiment, the complex symbols comprised by the first sequence are mapped on resource elements of the portion comprised by the first set of resource elements.

As an embodiment, the complex symbols comprised by the first sequence occupy resource elements comprised by the first set of resource elements.

As one embodiment, the first symbol is an OFDM symbol.

For one embodiment, the first symbol is a DFT-s-OFDM symbol.

As one embodiment, the first symbol is a multicarrier symbol.

As one embodiment, the first symbol includes a Cyclic Prefix (CP).

As one embodiment, the first Symbol includes a cyclic prefix and a Data Symbol (Data Symbol).

As an embodiment, the first symbol is a symbol occupied by a Secondary Synchronization Signal (SSS) in a time domain.

As an embodiment, the resource elements comprised by the first set of resource elements also occupy symbols other than the first symbol in the time domain.

As an embodiment, the resource elements comprised by the first set of resource elements occupy only the first symbol in the time domain.

As an embodiment, the complex symbols comprised by the first subsequence are mapped on resource elements comprised by the first set of resource elements occupying the first symbol.

As an embodiment, the complex symbols comprised by the first subsequence are mapped on all resource elements comprised by the first set of resource elements occupying the first symbol.

As an embodiment, the complex symbols comprised by the first subsequence are mapped on resource elements comprised by the first set of resource elements occupying part of the first symbol.

As an embodiment, the complex symbols comprised by the first subsequence occupy resource elements comprised by the first set of resource elements that occupy the first symbol.

As an embodiment, the first subsequence comprises complex symbols of the portion comprised by the first sequence.

As an embodiment, the first sequence comprises a complex symbol not belonging to the first subsequence.

As an embodiment, the target subset of time-frequency resources and the target subset of resource elements are orthogonal.

As an embodiment, there is not one Resource Element (RE) belonging to both the target time-frequency Resource subset and the target Resource Element subset.

As an embodiment, the target subset of time-frequency resources comprises the target subset of resource elements.

As an embodiment, any resource element included in the target resource element subset belongs to the target time-frequency resource subset.

In one embodiment, the second set of time-frequency resources and the first set of resource elements are orthogonal.

As an embodiment, there is not one Resource Element (RE) belonging to both the second set of time-frequency resources and the first set of Resource elements.

In one embodiment, the second set of time-frequency resources comprises the first set of resource elements.

As an embodiment, any one resource element included in the first set of resource elements belongs to the second set of time-frequency resources.

As one embodiment, the second symbol is an OFDM symbol.

For one embodiment, the second symbol is a DFT-s-OFDM symbol.

As one embodiment, the second symbol is a multicarrier symbol.

As one embodiment, the second symbol includes a Cyclic Prefix (CP).

As one embodiment, the second Symbol includes a cyclic prefix and a Data Symbol (Data Symbol).

As an embodiment, the second symbol is a symbol occupied by a Primary Synchronization Signal (PSS) in a time domain.

As an embodiment, the second symbol is a symbol occupied by the first synchronization signal in a time domain.

As an embodiment, the second symbol is the same symbol comprised by the target subset of time-frequency resources and the first set of time-frequency resources in the time domain.

As an embodiment, the resource elements comprised by the target subset of resource elements occupy only the second symbol in the time domain.

As an embodiment, the resource elements included in the target subset of resource elements also occupy symbols other than the second symbol in the time domain.

As an embodiment, the first subsequence is repeatedly mapped on resource elements occupying the second symbol comprised by the target subset of resource elements.

As an embodiment, the first subsequence occupies resource elements included in the target subset of resource elements that occupy the second symbol.

As an embodiment, the first subsequence is mapped on all resource elements occupied by the second symbol comprised by the target subset of resource elements.

As an embodiment, the first subsequence is mapped on resource elements occupying part of the second symbol comprised by the target subset of resource elements.

As an embodiment, the complex symbols comprised by the first subsequence are mapped onto resource elements comprised by the target subset of resource elements occupying the second symbol.

As an embodiment, the complex symbols comprised by the first subsequence are repeatedly mapped on resource elements comprised by the first set of resource elements occupying the first symbol and on resource elements comprised by the target subset of resource elements occupying the second symbol.

As an embodiment, the complex symbols mapped on the resource elements occupying the first symbol included in the first set of resource elements and the complex symbols mapped on the resource elements occupying the second symbol included in the target subset of resource elements are the same.

As an embodiment, the complex symbols comprised by the first subsequence are repeatedly transmitted in the first symbol and the second symbol in the time domain.

Example 13

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

In embodiment 13, the first receiver 1301 receives a first synchronization signal; a second receiver 1302 receives a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

As an embodiment, a first modulation symbol sequence is used to generate the first broadcast signal, where the first modulation symbol sequence includes a positive integer greater than 1 of modulation symbols arranged in sequence, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second set of time-frequency resources, and any resource element included in the second set of time-frequency resources and any resource element included in the first set of time-frequency resources occupy different symbols in a time domain; when the target time-frequency resource subset is occupied by the first broadcast signal, mapping X1 modulation symbols in the first modulation symbol sequence onto resource elements included in the target time-frequency resource subset, wherein X1 is a positive integer greater than 1.

As an embodiment, the second set of time-frequency resources includes M subcarriers in the frequency domain, the M subcarriers include M1 subcarriers, the M1 is a positive integer greater than 1, the M is a positive integer no less than the M1; any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the frequency domain by the first set of time-frequency resources; the distribution of the M1 sub-carriers among the M sub-carriers is predefined, or the distribution of the M1 sub-carriers among the M sub-carriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, the target subset of time-frequency resources includes M2 subcarriers in the frequency domain, any one subcarrier of the M2 subcarriers is one subcarrier of subcarriers included in the frequency domain by the second set of time-frequency resources; the second set of time-frequency resources includes consecutive subcarriers in the frequency domain, the two most marginal subcarriers included in the frequency domain by the second set of time-frequency resources are two subcarriers of the M2 subcarriers, respectively, and the M2 is a positive integer greater than 1.

As an embodiment, the target subcarrier is a subcarrier of the target subset of time-frequency resources outside subcarriers included in the frequency domain, and the target subcarrier is a subcarrier of the first set of time-frequency resources outside subcarriers included in the frequency domain; the position of the target subcarrier in the frequency domain is between the position of the subcarrier, included in the frequency domain, of the target time-frequency resource subset in the frequency domain and the position of the subcarrier, included in the frequency domain, of the first time-frequency resource set in the frequency domain.

As an embodiment, a ratio between the transmission energy of each resource element occupied by the first synchronization signal and the transmission energy of each resource element occupied by the first broadcast signal is equal to a first ratio, the first ratio being related to whether the target time-frequency resource subset is occupied by the first broadcast signal.

As an embodiment, the target index belongs to one of a first index set or a second index set, the first index set including positive integer indices greater than 1, the second index set including positive integer indices greater than 1; when the target index belongs to the first index set, the first broadcast signal carries the first information block; when the target index belongs to the second index set, the first broadcast signal carries information other than the first information block.

For one embodiment, the second receiver 1302 receives a first reference signal; wherein a first sequence is used for generating the first reference signal, the first sequence being mapped on resource elements comprised by a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

Example 14

Embodiment 14 is a block diagram illustrating a processing apparatus in the second node device according to an embodiment, as shown in fig. 14. In fig. 14, a second node device processing apparatus 1400 includes a first transmitter 1401 and a second transmitter 1402. The first transmitter 1401 comprises the transmitter/receiver 416 (including the antenna 460), 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 460), the transmit processor 415, and the controller/processor 440 of fig. 4 of the present application.

In embodiment 14, the first transmitter 1401 transmits a first synchronization signal; a second transmitter 1402 sends a first broadcast signal, the first broadcast signal carrying a target index, the target index being a non-negative integer; wherein the first synchronization signal occupies a first set of time-frequency resources, a second set of time-frequency resources is occupied by the first broadcast signal, a target subset of time-frequency resources is orthogonal to the second set of time-frequency resources, and the target subset of time-frequency resources and the first set of time-frequency resources comprise a same symbol in the time domain; the type of the first node device is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of subcarriers included in the frequency domain of the first set of time-frequency resources is equal to a first subcarrier spacing, the subcarrier spacing of subcarriers included in the frequency domain of the second set of time-frequency resources is equal to the first subcarrier spacing, and the frequency band to which the first set of time-frequency resources belongs in the frequency domain is used for determining the first subcarrier spacing; the target index is used to determine whether the first broadcast signal carries a first information block, which is used to determine a set of control resources.

For one embodiment, the second transmitter 1402 transmits a first reference signal; a first sequence is used for generating the first reference signal, the first sequence being mapped on resource elements comprised by a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

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. First node equipment or second node equipment or UE or terminal in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, the equipment of RedCap, wearable equipment, industrial sensor, vehicle communication equipment, aircraft, unmanned aerial vehicle, wireless communication equipment such as telecontrolled aircraft. The base station device or the base station or the network side device in the present 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 node device for use in wireless communications, comprising:

a first receiver receiving a first synchronization signal;

2. The first node device of claim 1, wherein a first modulation symbol sequence is used to generate the first broadcast signal, the first modulation symbol sequence includes a positive integer number greater than 1 of modulation symbols arranged in sequence, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second set of time-frequency resources, any resource element included in the second set of time-frequency resources and any resource element included in the first set of time-frequency resources occupy different symbols in a time domain; when the target time-frequency resource subset is occupied by the first broadcast signal, mapping X1 modulation symbols in the first modulation symbol sequence onto resource elements included in the target time-frequency resource subset, wherein X1 is a positive integer greater than 1.

3. The first node device of claim 2, wherein the second set of time-frequency resources comprises M subcarriers in the frequency domain, wherein the M subcarriers comprise M1 subcarriers, wherein M1 is a positive integer greater than 1, wherein M is a positive integer no less than M1; any one modulation symbol mapped on resource elements included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the frequency domain by the first set of time-frequency resources; the distribution of the M1 sub-carriers among the M sub-carriers is predefined, or the distribution of the M1 sub-carriers among the M sub-carriers is related to the position of the time domain resource occupied by the first synchronization signal in the time domain.

4. The first node device of any of claims 1 to 3, wherein the target subset of time-frequency resources comprises M2 subcarriers in the frequency domain, any one subcarrier of the M2 subcarriers being one subcarrier of the subcarriers comprised by the second set of time-frequency resources in the frequency domain; the second set of time-frequency resources includes consecutive subcarriers in the frequency domain, the two most marginal subcarriers included in the frequency domain by the second set of time-frequency resources are two subcarriers of the M2 subcarriers, respectively, and the M2 is a positive integer greater than 1.

5. The first node device of any of claims 1 to 4, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside of subcarriers comprised in the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside of subcarriers comprised in the frequency domain; the position of the target subcarrier in the frequency domain is between the position of the subcarrier, included in the frequency domain, of the target time-frequency resource subset in the frequency domain and the position of the subcarrier, included in the frequency domain, of the first time-frequency resource set in the frequency domain.

6. The first node device of any of claims 1 to 5, wherein a ratio between the transmission energy of each resource element occupied by the first synchronization signal and the transmission energy of each resource element occupied by the first broadcast signal is equal to a first ratio, the first ratio being related to whether the target subset of time-frequency resources is occupied by the first broadcast signal.

7. The first node apparatus of any of claims 1 to 6, wherein the target index belongs to one of a first set of indices comprising positive integer indices greater than 1 or a second set of indices comprising positive integer indices greater than 1; when the target index belongs to the first index set, the first broadcast signal carries the first information block; when the target index belongs to the second index set, the first broadcast signal carries information other than the first information block.

8. The first node device of any of claims 1 to 7, wherein the second receiver receives a first reference signal; wherein a first sequence is used for generating the first reference signal, the first sequence being mapped on resource elements comprised by a first set of resource elements, the first sequence comprising a positive integer number of complex symbols greater than 1, the first set of resource elements comprising a positive integer number of resource elements greater than 1; the first symbol is a symbol occupied by resource elements included in the first resource element set in a time domain, a first subsequence is mapped on the resource elements occupied by the first symbol included in the first resource element set, the first subsequence includes positive integer number of complex symbols greater than 1, and any one complex symbol included in the first subsequence belongs to the first sequence; when the target time-frequency resource subset is occupied by the first broadcast signal, a target resource element subset is occupied by the first reference signal, the target resource element subset includes a positive integer number of resource elements greater than 1, a second symbol is a symbol occupied by the resource elements included in the target resource element subset in a time domain, the first subsequence is mapped on the resource elements included in the target resource element subset occupying the second symbol, and the target resource element subset is orthogonal to the first resource element set.

9. A second node device for use in wireless communications, comprising:

a first transmitter that transmits a first synchronization signal;

10. A method in a first node in wireless communication, comprising:

receiving a first synchronization signal;

11. A method in a second node in wireless communication, comprising:

transmitting a first synchronization signal;