CN113939035B

CN113939035B - Method and apparatus in a node for wireless communication

Info

Publication number: CN113939035B
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: 2024-06-14
Anticipated expiration: 2040-06-29
Also published as: CN113939035A

Abstract

The application discloses a method and a device in a node for wireless communication. The 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 time-frequency resource set, a second time-frequency resource set is occupied by the first broadcast signal, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 first time-frequency resource set in the frequency domain is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set in the frequency domain belongs 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 application improves the broadcast channel performance.

Description

Method and apparatus in a node for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus for a reduced capability device in wireless communication.

Background

Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet different performance requirements of various application scenarios, research on a New air interface technology (NR, new Radio) (or 5G) is decided at the 3GPP (3 rd Generation Partner Project, third generation partnership project) RAN (Radio Access Network ) #72 full-time, and standardization Work on NR is started at the 3GPP RAN #75 full-time WI (Work Item) that passes the New air interface technology (NR, new Radio).

In the 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 and 16 versions (Release 16) to support different internet of things application scenarios, such as Ultra-reliable low latency communications (URLLC, ultra-reliable and Low Latency Communications) and industrial physical networks (IIoT, industrial Internet of Things), standard support is still required for other application scenarios, such as wearable devices, surveillance videos, etc. Based on the above background, the Study was started at Release 17 (Release 17) with SI (Study Item) having passed the reduced capability (RedCap, reduced Capability) (also referred to as NR-Lite in the earlier stage) at the 3gpp ran#86 full meeting.

Disclosure of Invention

Reducing radio frequency bandwidth is one of the effective ways to reduce the complexity of user equipment. However, due to the reduced radio frequency bandwidth of the ue, some signals or channels with existing designs may not be completely received or transmitted, resulting in system failure or performance degradation.

The present application discloses a solution to the problem in a narrow radio frequency bandwidth scenario (such as RedCap). It should be noted that, in the description of the present application, only a user device with a narrow bandwidth (such as RedCap) is taken as a typical application scenario or example; the application is also applicable to other situations with limited receiving or transmitting bandwidth which face similar problems (for example, in the situation of supporting larger carrier bandwidth, the user equipment supporting the existing bandwidth may also face similar problems), and similar technical effects can be obtained. Furthermore, the use of a unified solution for different scenarios (including but not limited to RedCap scenarios) also helps to reduce hardware complexity and cost. Embodiments of the present application and features of embodiments may be applied to a second node device and vice versa without conflict. In particular, the term (Terminology), noun, function, variable in the present application may be interpreted (if not specifically described) 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;

The first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 the target time-frequency resource subset and the first time-frequency resource set to include one and the same symbol in the time domain, the increased beam sweeping (Beam sweeping) process caused by the limitation of analog beamforming (Anology Beamforming) is avoided while providing transmission resources of additional physical broadcast channels, thereby reducing the limitation of resource scheduling and improving the resource utilization.

As an embodiment, whether the target time-frequency resource subset is occupied by the first broadcast signal is determined according to the type of the first node device, so that when RedCap or other user devices with radio frequency bandwidth capability are supported, the design of the existing physical broadcast channel is reused to the greatest extent, and the complexity and the workload of the system design are reduced while the compatibility is ensured.

According to one 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, where the first modulation symbol sequence includes a positive integer number of sequentially arranged modulation symbols greater than 1, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second time-frequency resource set, and any one of the resource elements included in the second time-frequency resource set and any one of the resource elements 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 a frequency domain, M1 subcarriers are included in the M subcarriers, M1 is a positive integer greater than 1, and M is a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

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 the implementation of the receiver; the distribution of the M1 sub-carriers in the M sub-carriers is correlated with the position of the time domain resource occupied by the first synchronization signal in the time domain, so that the randomization of interference is realized, and the transmission performance of PBCH is further improved.

According to one 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 in the M2 subcarriers is one subcarrier in the subcarriers included in the frequency domain by the second time-frequency resource set; the second time-frequency resource set includes consecutive subcarriers in the frequency domain, two subcarriers of the second time-frequency resource set at the extreme edge included in the frequency domain are two subcarriers of the M2 subcarriers, respectively, and M2 is a positive integer greater than 1.

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

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

As an embodiment, the target subcarrier is set as a protection subcarrier, so that all possible influences on the synchronous signal caused by adjacent band interference are avoided, and the receiving performance of the synchronous signal is ensured.

According to one aspect of the present application, the above method is characterized in that a ratio between the transmission energy of each occupied resource element of the first synchronization signal and the transmission energy of each occupied resource element of 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.

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 the receiver when receiving the broadcast signal can reuse the automatic gain control (AGC, automatic Gain Control) 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 present 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 a positive integer number of indexes greater than 1, the second index set comprising a positive integer index 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 outside the first information block.

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

Receiving a first reference signal;

Wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

As an embodiment, the first sub-sequence 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 guaranteed, the complexity of mapping the reference signal resource and the complexity of channel estimation are reduced by integrally copying the reference signal of the whole time domain, and meanwhile, the method can be compatible with the receiving bandwidths of multiple receivers.

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;

Transmitting 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 device used in wireless communication, which is characterized by comprising:

a first receiver that receives a first synchronization signal;

a second receiver that receives a first broadcast signal, the first broadcast signal carrying a target index, the target index being a non-negative integer;

The application discloses a second node device used in wireless communication, which is characterized by comprising:

a first transmitter that transmits a first synchronization signal;

a second transmitter that transmits a first broadcast signal, the first broadcast signal carrying a target index, the target index being a non-negative integer;

As an embodiment, the method of the present application has the following advantages:

The method of the application avoids the increased beam sweeping (Beam sweeping) process caused by the limitation of analog beam forming (Anology Beamforming) while providing the transmission resource of the additional physical broadcast channel, reduces the limitation of resource scheduling and improves the resource utilization rate;

By adopting the method of the application, when RedCap or other user equipment with radio frequency bandwidth capability is supported, the design of the existing physical broadcast channel is reused to the maximum extent, and the complexity and the workload of the system design are reduced while the compatibility is ensured;

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

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

The method avoids the influence on the synchronous signals caused by adjacent band interference and ensures the receiving performance of the synchronous signals;

By adopting the method of the application, the receiver can reuse the automatic gain control (AGC, automatic Gain Control) of the synchronous signal under different conditions when receiving the broadcast signal, 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 whole reference signal of the whole time domain, reduces the complexity of the reference signal resource mapping and the complexity of channel estimation, and can be 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 detailed description of non-limiting embodiments, made with reference to the following drawings in which:

Fig. 1 illustrates a flowchart 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 one embodiment of the application;

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

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

fig. 5 shows a wireless signal transmission flow diagram according to one embodiment of the application;

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

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

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

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

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

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

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

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

Fig. 14 shows a block diagram of the processing means in the second node device according to an embodiment of the application.

Detailed Description

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

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 emphasized that the order of the blocks in the drawing does not represent temporal relationships between the represented steps.

In embodiment 1, a first node device 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; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 synchronization signal is a wireless signal.

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

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

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

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

As an 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 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 an embodiment, the first synchronization signal comprises a primary synchronization signal (Primary Synchronization Signal, PSS).

As an embodiment, the first synchronization signal comprises a secondary synchronization signal (Secondary Synchronization Signal, SSS).

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

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

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

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

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

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

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

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

As an embodiment, the first broadcast signal includes PBCH and Demodulation reference signal (DMRS, demodulation REFERENCE SIGNAL) of PBCH.

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

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

As an embodiment, the first synchronization signal is cell specific (CELL SPECIFIC).

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

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

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 an embodiment, the first broadcast signal is Beam Specific.

As one embodiment, the first broadcast signal is antenna port specific (Antenna Port Specific).

As an embodiment, the first broadcast signal is cell specific (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 an embodiment, the first synchronization signal and the first broadcast signal use the same Antenna Port (Antenna Port).

As an embodiment, the first synchronization signal and the first broadcast signal both use an Antenna Port 4000.

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

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

As an embodiment, the first synchronization signal and the first broadcast signal are Quasi Co-sited (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 an embodiment, the first synchronization signal and the first broadcast signal are Quasi Co-sited (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 reception parameters (Spatial Rx Parameters).

As an example, the target index may be equal to 0.

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

As one embodiment, the target index is k _SSB.

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

As one embodiment, the target index is the number of sub-carriers of the offset between two sub-carriers.

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

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

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

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

As an embodiment, the sentence "the first broadcast signal carries the target index" includes the following meanings: the higher layer information carried by the first broadcast signal is used together with physical layer information to determine the target index.

As an embodiment, the sentence "the first broadcast signal carries the target index" includes the following meanings: the high layer load (Payload) and the physical layer load (Payload) carried by the first broadcast signal each include 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.

As an 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 a part of resource elements included in 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 comprises a positive integer number of physical resource blocks (PRBs, physical Resource Block) greater than 1 in the frequency domain.

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

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

As an embodiment, the resource elements comprised by 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 the resource elements comprised by 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 includes a positive integer number of Resource Elements (REs) greater than 1.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of physical resource blocks (PRBs, physical Resource Block) greater than 1 in the frequency domain.

As an embodiment, the second set of time-frequency resources comprises a positive integer number of symbols (symbols) 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 sentence "the target time-frequency resource subset is orthogonal to the second time-frequency resource set" includes the following meanings: there is no one Resource Element (RE) belonging to both the target time-frequency Resource subset and the second time-frequency Resource set.

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

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

As an embodiment, the sentence "the target time-frequency resource subset is orthogonal to the second time-frequency resource set" includes the following meanings: and (n-Overlapped) between the target time-frequency resource subset and the second time-frequency resource set.

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

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

As an embodiment, there is no Symbol (Symbol) in the time domain comprised by both the target time-frequency resource subset and the second time-frequency resource subset.

As an embodiment, the target time-frequency resource subset comprises a positive whole resource element greater than 1.

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 included in the target time-frequency resource set 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 time-frequency resource subset is orthogonal to the first time-frequency resource set.

As an embodiment, there is no one resource element belonging to both the target time-frequency resource subset and the first time-frequency resource set.

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

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

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

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

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

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

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

As an embodiment, all symbols included in the time domain by the target time-frequency resource subset and all symbols included in the time domain by the first time-frequency resource set are correspondingly the same.

As an embodiment, the target time-frequency resource subset includes one symbol in the time domain, which is a symbol of the first time-frequency resource set outside the symbols included in the time domain.

As an embodiment, the first set of time-frequency resources comprises a symbol in the time domain that is outside the symbols comprised by the target subset of time-frequency resources in the time domain.

As an embodiment, the type of the first node device is a reduced capability (RedCap, reduced Capability) User Equipment (UE).

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

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

As an embodiment, the first node device is of a type that is a low bandwidth and reduced antenna count user device.

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

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

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

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

As an embodiment, the type of the first node device is a user equipment of a user equipment having a capability lower than NR (New Radio) Release 15.

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

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

As an embodiment, the type of the first node device is one of W device types, including a user device whose device type is for reduced capability (RedCap, reduced Capability), and a user device whose device type is for Release 15/Release 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 there are user devices of two device types respectively for different minimum radio frequency bandwidths (RF bandwidths), 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, of which there are user devices of two device types each configured (transmission bandwidth configuration) for a different minimum transmission bandwidth, W being a positive integer greater than 1.

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

As an embodiment, the first broadcast signal also carries a first type indication, which is used to indicate the type of the intended recipient of the first broadcast signal.

As an embodiment, the first broadcast signal also carries a first type indication, which is used to indicate the type of target recipient of MIB (Master Information Block) carried by the first broadcast signal.

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

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

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

As an embodiment, the first broadcast signal also carries a first type indication, which is used to indicate whether the information carried by the first broadcast signal is a MIB or a message type extension (messageClassExtension); when the first type indication indicates that the information carried by the first broadcast signal is a message type extension, the user equipment belonging to the type of the first node equipment reads the message in the message type extension carried by the first broadcast signal.

As an embodiment, the 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 the present application to determine whether the target time-frequency resource subset is occupied by the first broadcast signal.

As an embodiment, the 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 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, according to a given correspondence, whether the target subset of time-frequency resources is occupied by the first broadcast signal.

As an embodiment, the 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 occupied by the first broadcast signal and the target time-frequency resource subset not occupied by the first broadcast signal correspond to different user equipment types respectively.

As an embodiment, the 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 time-frequency resource subset is occupied by the first broadcast signal; when the type of the first node device is a device type other than the first device type of the device types in the W, the target time-frequency resource subset is not occupied by the first broadcast signal.

As an embodiment, the 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 user device of a type other than a reduced capability user device, the target subset of time-frequency resources is not occupied by the first broadcast signal.

As an embodiment, the first subcarrier spacing is in hertz (Hz).

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

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

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

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

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

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

As an embodiment, the sentence "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" includes the following meanings: the frequency band of the first time-frequency resource set in the frequency domain is used for determining the first subcarrier spacing according to a predefined corresponding relation.

As an embodiment, the sentence "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" includes the following meanings: the frequency band of the first time-frequency resource set in the frequency domain is one of P1 frequency bands, P1 is a positive integer greater than 1, the P1 frequency bands are respectively in one-to-one correspondence with P1 subcarrier interval sets, and any subcarrier interval set in the P1 subcarrier interval sets comprises a positive integer of subcarrier intervals; the first subcarrier interval set is one subcarrier interval set in the P1 subcarrier interval sets, the first subcarrier interval set is a subcarrier interval set corresponding to a frequency band to which the first time-frequency resource set belongs in a frequency domain, and the first subcarrier interval belongs to the first subcarrier interval 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 embodiment, the 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 the present application to determine whether the first broadcast signal carries the first information block.

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

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

As an embodiment, the 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 embodiment, the 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 alternative indexes, the first broadcast signal does not carry the first information block; the Q1 alternative indices are predetermined.

As an embodiment, the 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 embodiment, the 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 embodiment, the 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 the present application to determine a set of control resources (CORESET, control Resource Set).

As an embodiment, the 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 set of control resources (CORESET, control Resource Set).

As an embodiment, the 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 set of control resources (CORESET, control Resource Set).

As an embodiment, the 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 control resource set #0 (CORESET #0,Control Resource Set#0).

As an embodiment, the 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 set of control resources (CORESET, control Resource Set) for scheduling PDSCH (Physical Downlink SHARED CHANNEL ) carrying SIB1 (System Information Block 1).

As an embodiment, the 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 set of control resources (CORESET, control Resource Set) for scheduling PDSCH (Physical Downlink SHARED CHANNEL ) carrying 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 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 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-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (EvolvedPacket Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (UnifiedData Management, unified data management) 220, and internet service 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR/evolved node B (gNB/eNB) 203 and other gnbs (enbs) 204. The gNB (eNB) 203 provides user and control plane protocol termination towards the UE 201. The gNB (eNB) 203 may be connected to other gNBs (eNBs) 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 (transceiver node), or some other suitable terminology. The gNB (eNB) 203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the 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. The gNB (eNB) 203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication MANAGEMENT FIELD, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (SERVICE GATEWAY, serving gateway)/UPF (User Plane Function, user plane functions) 212 and P-GW (PACKET DATE Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.

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

As an embodiment, the UE201 supports reduced capability transmissions.

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

As an embodiment, the gNB (eNB) 201 corresponds to the second node device in the present application.

As one embodiment, the gNB (eNB) 201 supports and reduces communications for user equipment of capabilities.

As an embodiment, the gNB (eNB) 201 supports communication with user equipment of narrow radio frequency bandwidth.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the 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 shows the radio protocol architecture for 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 PHY301. 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 PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) 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 the data packets and handover support for the first node device between second node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data 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 the various radio resources (e.g., resource blocks) in one cell among the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) 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), and the radio protocol architecture for the first node device and the second node device in the user plane 350 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 data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (SERVICE DATA Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first node apparatus 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., remote UE, server, etc.).

As an embodiment, the radio protocol architecture in fig. 3 is suitable for the first node device in the present application.

As an embodiment, the radio 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 PHY351.

As an embodiment, the first broadcast signal in the present application is generated in the RRC306.

As an embodiment, the first broadcast signal in the present application is generated in the MAC302 or the MAC352.

As an embodiment, the first broadcast signal in the present application is generated in the PHY301 or the PHY351.

As an embodiment, the first reference signal in the present application is generated in the PHY301 or the PHY351.

Example 4

Embodiment 4 shows a schematic diagram of a first node device and a second node device according to the 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 DL (Downlink), upper layer packets, such as higher layer information included in the first broadcast signal in the present application, are provided to the controller/processor 440. The controller/processor 440 implements the functions of the L2 layer and above. In DL, the controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocations to the first node device 450 based on various priority metrics. The controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first node device 450, such as higher layer information included in the first broadcast signal in the present application, are all generated in the controller/processor 440. The transmit processor 415 performs various signal processing functions for the L1 layer (i.e., physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, physical layer control signaling generation, etc., such as physical layer signaling of the first broadcast signal and physical layer signaling included in the first broadcast signal, physical layer signaling of the first synchronization signal, physical layer signaling of the first reference signal in the present application, are performed at the transmit processor 415. The generated modulation symbols are divided into parallel streams and each stream is mapped to a respective multicarrier subcarrier and/or multicarrier symbol and then transmitted as a radio frequency signal by transmit processor 415 via transmitter 416 to antenna 420. At the receiving end, each receiver 456 receives a radio frequency signal through its respective antenna 460, each receiver 456 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to the receive processor 452. The reception processor 452 implements various signal reception processing functions of the L1 layer. The signal reception processing function includes 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 in the present application, demodulation based on various modulation schemes (e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK)) through multicarrier symbols in the multicarrier symbol stream, followed by descrambling, decoding and deinterleaving to restore data or control transmitted by the second node apparatus 410 on the physical channel, and then 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 the present 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 device 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 are configured to, with the at least one processor, cause the apparatus of the first node device 450 to 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; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 device 450 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts 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; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 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 means at least: transmitting a first synchronization signal; transmitting a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 second node device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting a first synchronization signal; transmitting a first broadcast signal, wherein the first broadcast signal carries a target index, and the target index is a non-negative integer; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 device 450 is a User Equipment (UE).

As an embodiment, the first node device 450 is a reduced capability user device.

As an embodiment, the first node device 450 is a user device with a narrow radio frequency bandwidth.

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

As an embodiment, the second node device 410 is a base station device that supports communication with reduced capability user devices.

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

As an example, a receiver 456 (including an antenna 460) and a receive processor 452 are used in the present application to receive the first synchronization signal.

As an example, the receiver 456 (including the antenna 460), the receiving processor 452 and the controller/processor 490 are used in the present application to receive the first broadcast signal.

As an example, a receiver 456 (including an antenna 460) and a receive processor 452 are used in the present application to receive the first reference signal.

As an example, a transmitter 456 (including an antenna 460) and a transmit processor 455 are used in the present application to transmit the first synchronization signal.

As one example, a transmitter 456 (including an antenna 460), a transmit processor 455 and a controller/processor 490 are used in the present application to transmit the first broadcast signal.

As an example, a transmitter 416 (including an antenna 420) and a transmit processor 415 are used to transmit the first reference signal in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the application, as shown in fig. 5. In fig. 5, the second node device N500 is a maintenance base station of the serving cell of the first node device U550. It is specifically explained that the order in this example does not limit the order of signal transmission and the order of implementation in the present application.

For the second node apparatus N500, a first synchronization signal is transmitted in step S501, a first reference signal is transmitted in step S502, and a first broadcast signal is transmitted in step S503.

For the first node apparatus U550, a first synchronization signal is received in step S551, a first reference signal is received in step S552, and a first broadcast signal is received in step S553.

In embodiment 5, the first broadcast signal in the present application carries a target index, the target index being a non-negative integer; the first synchronization signal occupies a first time-frequency resource set, a second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

Example 6

Embodiment 6 illustrates a schematic diagram of X1 modulation symbols according to one 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 diagonally filled rectangle represents one modulation symbol out of X1 modulation symbols.

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

As an embodiment, each modulation symbol included in the first modulation symbol sequence is modulated with QPSK (Quadrature PHASE SHIFT KEYING).

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

As an example, all the modulation symbols included in the first modulation symbol sequence use a modulation scheme of one of BPSK (Binary PHASE SHIFT KEYING ), pi/2 BPSK, QPSK (Quadrature PHASE SHIFT KEYING), 16QAM (Quadrature Amplitude Modulation ), 64QAM, 256 QAM.

As an embodiment, the 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 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 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 frequency up-conversion (Modulation and upconversion) to generate the first broadcast signal.

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

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

As an embodiment, the partial 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 a given order.

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

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

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

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

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

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

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

As an 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 consecutively arranged modulation symbols in the first modulation symbol sequence.

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

As an embodiment, there is a discontinuous arrangement of two 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 on a part of subcarriers included in the second set of time-frequency resources in the frequency domain.

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

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

As an embodiment, the 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 onto one resource element included in the target time-frequency resource subset.

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

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 number of resource elements comprised by the target time-frequency resource subset is equal to the X1.

As an embodiment, the number of resource elements comprised by the target time-frequency resource subset is not equal to the X1.

As an embodiment, one modulation symbol of the X1 modulation symbols is not mapped to a resource element included in the target time-frequency resource subset.

As an embodiment, one modulation symbol out of the X1 modulation symbols is mapped to a resource element 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 one 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 portion represents a resource element included in the first time-frequency resource set, the cross-hatched rectangle portion represents a resource element included in the second time-frequency resource set, and the cross-hatched rectangle portion represents a resource element included in the target time-frequency resource subset.

In embodiment 7, the second set of time-frequency resources in the present application includes M subcarriers in the frequency domain, where M1 subcarriers are included in the M subcarriers, M1 is a positive integer greater than 1, and M is a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols in the present application, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the present application; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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 present application in the time domain.

As an embodiment, the second set of time-frequency resources includes 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 example, M is equal to 240.

As one embodiment, the M is less than 240.

As one example, the M is greater than 240.

As one example, the M is equal to 96.

As an embodiment, the number of subcarriers occupied by the 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 the 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 sentence "any one of the modulation symbols mapped on the 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 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 sentence "any one of the modulation symbols mapped on the 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: any one of the X1 modulation symbols mapped on the resource elements included in the second time-frequency resource set occupies one of the M1 subcarriers in a frequency domain.

The sentence "any one of the modulation symbols mapped on the 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 included in the second set of time-frequency resources and occupying one of the M1 subcarriers in the frequency domain constitute the X1 modulation symbols.

The sentence "any one of the modulation symbols mapped on the 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 compensation resource element subset includes resource elements occupying one subcarrier of the M1 subcarriers included in the second time-frequency resource set, and modulation symbols mapped on the resource elements included in the compensation resource element subset in the first modulation symbol sequence in the present application form the X1 modulation symbols.

The sentence "any one of the modulation symbols mapped on the 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 compensation resource element subset includes resource elements occupying one subcarrier of the M1 subcarriers included in the second time-frequency resource set, and a modulation symbol mapped on any one of the resource elements included in the compensation resource element subset is one of the X1 modulation symbols.

The sentence "any one of the modulation symbols mapped on the 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 compensation resource element subset includes resource elements occupying one subcarrier in the M1 subcarriers included in the second time-frequency resource set, a modulation symbol mapped on any one resource element included in the compensation resource element subset is one of the X1 modulation symbols, and one modulation symbol exists in the X1 modulation symbols and is not mapped on any one resource element included in the compensation resource element subset.

As an embodiment, one modulation symbol of the X1 modulation symbols is mapped on a resource element included in the second time-frequency resource set but occupies one subcarrier other than the M1 subcarriers in the frequency domain.

As an embodiment, the sentence "the M1 subcarriers are orthogonal to subcarriers included in the first set of time-frequency resources in the frequency domain" includes the following meanings: there is no subcarrier belonging to the M1 subcarriers and subcarriers included in the frequency domain by the first set of time-frequency resources.

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

As an embodiment, the sentence "the M1 subcarriers are orthogonal to subcarriers included in the first set of time-frequency resources in the frequency domain" includes the following meanings: the M1 subcarriers and the first set of time-frequency resources do not have the same subcarriers between subcarriers included in the frequency domain.

As an embodiment, the sentence "the M1 subcarriers are orthogonal to subcarriers included in the first set of time-frequency resources in the frequency domain" includes the following meanings: any one subcarrier in the M1 subcarriers is different from any one subcarrier included in the first time-frequency resource set in the frequency domain.

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

As an embodiment, "the distribution of the M1 subcarriers among the M subcarriers" means: the M1 subcarriers are distributed in frequency domain positions in the M subcarriers.

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

As an embodiment, "the distribution of the M1 subcarriers among the M subcarriers" means: the M1 subcarriers are respectively located in frequency domains in the M subcarriers.

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

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

As an embodiment, the 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 embodiment, the 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 embodiment, the sentence "the distribution of the M1 subcarriers among the M subcarriers is predefined" includes the following meanings: the distribution of the M1 sub-carriers in the M sub-carriers is predefined according to the frequency band to which the M sub-carriers belong in the 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 indexing the time domain resource occupied by the first synchronous 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: the time domain resource occupied by the first synchronization signal is an index of 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: the time domain resource occupied by the first synchronization signal is an index of a Half-Frame (halof-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 indexing 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 synchronization signal in the time 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 an 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 an alternative (CANDIDATE) 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: the lowest L1 bit (L1 LSB, least Significant Bits) of the index of the alternative (CANDIDATE) SS/PBCH (Synchronization Signal/Physical Broadcast Channel ) Block (Block) to which the first synchronization signal belongs, the L1 being 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 alternative (CANDIDATE) 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: the highest L2 bit (L2 MSB, most Significant Bits) of the index of the alternative (CANDIDATE) SS/PBCH (Synchronization Signal/Physical Broadcast Channel ) Block (Block) to which the first synchronization signal belongs, the L2 being a positive integer.

As an embodiment, the 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 synchronous signal in the time domain have a corresponding relation.

As an embodiment, the 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 changes along with the change of the position of the time domain resource occupied by the first synchronization signal in the time domain.

As an embodiment, the 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 for determining the distribution of the M1 sub-carriers in the M sub-carriers.

As an embodiment, the 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 is one of N1 alternative distributions, the position of the time domain resource occupied by the first synchronous 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 one 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 portion represents a resource element included in the first time-frequency resource set, the cross-hatched rectangle portion represents a resource element included in the second time-frequency resource set, and the cross-hatched rectangle portion represents a resource element included in the target time-frequency resource subset.

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

As an embodiment, the target time-frequency resource subset includes only the M2 subcarriers in the frequency domain.

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

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

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

As 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 embodiment, said M2 is not greater than said M in the present application.

As an embodiment, said M2 is smaller than said M1 in the present application.

As an embodiment, said M2 is equal to said M1 in the present application.

As an embodiment, said M2 is larger than said M1 in the present application.

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

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

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 includes 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 included in the frequency domain by the second set of time-frequency resources are subcarriers continuously indexed in the frequency domain.

As an embodiment, the second set of time-frequency resources does not have one subcarrier outside the subcarriers included in the frequency domain, and the second set of time-frequency resources is located between two subcarriers included in the frequency domain.

As an embodiment, "the two subcarriers of the second set of time-frequency resources at the extreme edge included in the frequency domain" means: the second time-frequency resource set includes a subcarrier with a maximum index and a subcarrier with a minimum index in the frequency domain.

As an embodiment, "the two subcarriers of the second set of time-frequency resources at the extreme edge included in the frequency domain" means: and the second time-frequency resource set comprises subcarriers occupying the highest frequency and subcarriers occupying the lowest frequency in the frequency domain.

As an embodiment, "the two subcarriers of the second set of time-frequency resources at the extreme edge included in the frequency domain" means: and the second time-frequency resource set comprises the subcarriers with the highest center frequency and the subcarriers with the lowest center frequency in the frequency domain.

As an embodiment, "the two subcarriers of the second set of time-frequency resources at the extreme edge included in the frequency domain" means: 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 subcarriers of the second time-frequency resource set that are at the extreme edge are two subcarriers of the M2 subcarriers, respectively.

As an embodiment, the most marginal one subcarrier included in the frequency domain by the second set of time-frequency resources is a non-marginal subcarrier among the M2 subcarriers.

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

As one embodiment, M3 subcarriers of the M2 subcarriers are M3 subcarriers with highest center frequency points included in the frequency domain by the second time-frequency resource set, M4 subcarriers of the M2 subcarriers are M4 subcarriers with lowest center frequency points included in the frequency domain by 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 subsidiary embodiment of the above embodiment, the sum of said M3 and said M4 is equal to said M2. As another subsidiary embodiment of the above embodiment, said M3 and said M4 are equal, and the sum of said M3 and said M4 is equal to said M2. As an subsidiary embodiment of the above embodiment, the sum of said M3 and said M4 is smaller than said 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 target subcarriers 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 by frequency represents a subcarrier, the dot filled rectangle arranged by frequency represents a target subcarrier, the diagonally filled rectangle portion represents resource elements included in the first set of time-frequency resources, the cross-hatched rectangle portion represents resource elements included in the second set of time-frequency resources, and the cross-hatched rectangle portion represents resource elements included in the target subset of time-frequency resources.

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

As one embodiment, the target subcarrier is an idle subcarrier.

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

As an embodiment, the target sub-carriers are Guard bands (Guard bands) of the frequency domain.

As one embodiment, the target subcarrier is a Guard subcarrier (Guard subcarrier) in the frequency domain.

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

As one embodiment, the target subcarrier is orthogonal to the target time-frequency resource subset in the frequency domain, and the target subcarrier is orthogonal to the first time-frequency resource set.

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 the resource elements occupying the target subcarrier in the frequency domain are not occupied.

As an embodiment, the first set of time-frequency resources occupies one symbol included in the time domain and the resource elements occupying the target sub-carrier in the frequency domain are not used for transmission.

As an embodiment, "the location of the target subcarrier in the frequency domain" means: the order of the target sub-carriers in the frequency domain.

As an embodiment, "the location of the target subcarrier in the frequency domain" means: and the center frequency of the target subcarrier.

As an embodiment, "the location of the target subcarrier in the frequency domain" means: and the frequency range of the frequency domain resource occupied by the target subcarrier.

As an embodiment, "the location of the target subcarrier in the frequency domain" means: and indexing the target sub-carrier.

As an embodiment, "the location of the target subcarrier in the frequency domain" means: and 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 location of the target subcarrier in the frequency domain" means: and the absolute frequency range occupied by the target subcarrier.

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

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

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

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

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

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

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

As an embodiment, the target subcarrier is present as a guard subcarrier between a subcarrier comprised by the target time-frequency resource subset and a subcarrier comprised by the first time-frequency resource set.

Example 10

Embodiment 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, the cross-hatching filled rectangular portion represents one resource element occupied by the first synchronization signal, and the diagonally filled rectangular portion represents one resource element occupied by the first broadcast signal.

In embodiment 10, the ratio between the transmission energy of each occupied resource element of the first synchronization signal in the present application and the transmission energy of each occupied resource element of the first broadcast signal in the present application is equal to a first ratio, which is related to whether the target time-frequency resource subset in the present application is occupied by the first broadcast signal or not.

As an embodiment, the transmission energy of the first synchronization signal at each of the occupied Resource elements is equal to EPRE (ENERGY PER Resource Element) of the first synchronization signal.

As an embodiment, the transmission energy of the first broadcast signal at each occupied Resource Element is equal to EPRE (ENERGY PER Resource Element) of the first broadcast signal.

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

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

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

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

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

As an embodiment, the first ratio is in dB.

As an embodiment, the first ratio has no units.

As an embodiment, the first ratio is the ratio between EPRE (ENERGY PER Resource Element).

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

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

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

As an embodiment, the first ratio is in dB, and the first ratio is smaller than 0.

As an embodiment, the sentence "whether the first ratio and the target subset of time-frequency resources are occupied by the first broadcast signal" includes the following meanings: there is a correspondence between the first ratio and whether the target subset of time-frequency resources is occupied by the first broadcast signal.

As an embodiment, the sentence "whether the first ratio and the target subset of time-frequency resources 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 sentence "whether the first ratio and the target subset of time-frequency resources 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 a second ratio set, the first ratio set comprises a positive integer number of ratios, the second ratio set comprises a positive integer number of ratios, and the first ratio set and the second ratio set are different; 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 sentence "whether the first ratio and the target subset of time-frequency resources 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 a second ratio set, the first ratio set comprises a positive integer number of ratios, the second ratio set comprises a positive integer number of ratios, and the first ratio set and the second ratio set are different; when the target time-frequency resource subset is occupied by the first broadcast signal, the first ratio belongs to the first ratio set; when the target time-frequency resource subset is not occupied by the first broadcast signal, the first ratio value belongs to the second ratio value set.

As an embodiment, the sentence "whether the first ratio and the target subset of time-frequency resources 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 is used to determine a range of values for the first ratio.

Example 11

Embodiment 11 illustrates a schematic diagram of the relationship between a first index set and a second index set according to one embodiment of the application, as shown in fig. 11. In fig. 11, the first left column represents the frequency range, the second left column represents the first index set, and the third left column 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 including a positive integer number of indexes greater than 1, the second index set including a positive integer index 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 outside the first information block.

As an embodiment, the first set of indices and the second set of indices are different.

As an embodiment, the first set of indices and the second set of indices comprise different indices.

As an embodiment, any one index included in the first index set is a non-negative integer.

As an embodiment, any one index included in the second index set is a non-negative integer.

As an embodiment, there is no 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 set of indices and the second set of indices.

As an embodiment, any one index included in the first index set is different from any one index included in the second index set.

As an embodiment, the first index set includes an index equal to 0.

As an embodiment, any index included in the first index set is greater than 0.

As an embodiment, any index included in the second index set is greater than 0.

As an embodiment, the second index set includes an index equal to 0.

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

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

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

As an embodiment, the first and second index sets are two Non-overlapping 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.

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

As an 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 the 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, the sum of the number of indexes comprised by the first set of indexes and the number of indexes comprised by the second set of indexes is fixed.

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

As an embodiment, the 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 the 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 lowest center frequency subcarrier occupied by the first broadcast signal and a lowest center frequency subcarrier included in one common resource block (CRB, common Resource Block).

As an embodiment, when the target index belongs to the first index set, the first subcarrier is a subcarrier with the 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 the lowest center frequency included in a common resource block (CRB, common Resource Block) overlapping (Overlapped) with the first subcarrier.

As an embodiment, when the target index belongs to the first index set, the first subcarrier is a subcarrier with the 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 the lowest center frequency included in a common resource block (CRB, common Resource Block) 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 being different from the first information block, the second information block being used to determine 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 being different from the first information block, the second information block being used to determine a global synchronization signal number (GSCN, global synchronization channel number) 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 being different from the first information block, the second information block being used to determine a global synchronization signal number (GSCN, global synchronization channel number) 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 being different from the first information block, the second information block being used to determine a global synchronization signal number (GSCN, global synchronization channel number) of a synchronization signal other than the first synchronization signal; the second information block and the first information block are two different interpretations of the 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 positional 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 positional 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 one embodiment of the application, as shown in fig. 12. In fig. 12, the horizontal axis represents time, the vertical axis represents frequency, each diagonal filled rectangle represents one resource element included in the first set of resource elements, and each cross-hatched filled rectangle portion represents one resource element included in the target subset of resource elements.

In embodiment 12, a first sequence is used to generate the first reference signal in the present application, 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

As an embodiment, the first reference signal is a Demodulation reference signal (DMRS, demodulation REFERENCE SIGNAL).

As an embodiment, the first reference signal is a Demodulation reference signal (DMRS, demodulation REFERENCE SIGNAL) of the first broadcast signal.

As an embodiment, the first reference signal is a Demodulation reference signal (DMRS, demodulation REFERENCE SIGNAL) of the PBCH.

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

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

As one embodiment, the first sequence generates the first reference signal via mapping to physical resources (Mapping to physical resources) and OFDM baseband signal generation (OFDM Baseband 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 upconversion) to generate the first reference signal.

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

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

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

As an embodiment, the complex symbols included in the first sequence occupy resource elements included in the first set of resource elements.

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

As an embodiment, the first symbol is a DFT-s-OFDM symbol.

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

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

As an embodiment, the first Symbol comprises 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, secondary Synchronization Signal) in the time domain.

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

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

As an embodiment, the complex symbols included in the first sub-sequence are mapped on resource elements included in the first resource element set and occupying the first symbol.

As an embodiment, the complex symbols included in the first sub-sequence are mapped on all resource elements included in the first set of resource elements occupying the first symbol.

As an embodiment, the complex symbols included in the first sub-sequence are mapped on resource elements included in the first set of resource elements occupying part of the first symbol.

As an embodiment, the complex symbols included in the first sub-sequence occupy resource elements included in the first set of resource elements that occupy the first symbol.

As an embodiment, the first sub-sequence 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 sub-sequence.

As an embodiment, the target time-frequency resource subset and the target resource element subset are orthogonal.

As an embodiment, there is no one Resource Element (RE) belonging to both the target time-frequency Resource subset and the target Resource Element subset.

As an embodiment, the target time-frequency resource subset comprises the target resource element subset.

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

As an embodiment, the second set of time-frequency resources is orthogonal to the first set of resource elements.

As an embodiment, there is no one Resource Element (RE) belonging to both the second set of time-frequency resources and the first set of Resource elements.

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

As an embodiment, the second symbol is a DFT-s-OFDM symbol.

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

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

As an embodiment, the second Symbol comprises 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, primary Synchronization Signal) 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 included in the time domain by the target time-frequency resource subset and the first time-frequency resource set.

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 resource element subset occupy symbols other than the second symbol in the time domain.

As an embodiment, the first sub-sequence is repeatedly mapped on resource elements included in the target subset of resource elements occupying the second symbol.

As an embodiment, the first sub-sequence occupies resource elements of the second symbol comprised by the target subset of resource elements.

As an embodiment, the first sub-sequence is mapped on all resource elements included in the target subset of resource elements occupying the second symbol.

As an embodiment, the first sub-sequence is mapped on resource elements included in the target subset of resource elements occupying part of the second symbol.

As an embodiment, the complex symbols comprised by the first sub-sequence are mapped on the resource elements comprised by the target subset of resource elements occupying the second symbol.

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

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

As an embodiment, complex symbols included in the first sub-sequence are repeatedly transmitted in the first symbol and the second symbol in the time domain.

Example 13

Embodiment 13 illustrates a block diagram of the processing means in the first node device of 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) of fig. 4 of the present application, the receive processor 452 and the controller/processor 490; the second receiver 1302 includes the transmitter/receiver 456 (including the antenna 460) of fig. 4 of the present application, a receive processor 452 and a controller/processor 490.

In embodiment 13, the first receiver 1301 receives a first synchronization signal; the second receiver 1302 receives a first broadcast signal carrying a target index, the target index being a non-negative integer; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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, a first modulation symbol sequence is used to generate the first broadcast signal, where the first modulation symbol sequence includes a positive integer number of sequentially arranged modulation symbols greater than 1, the modulation symbols included in the first modulation symbol sequence are mapped onto resource elements included in the second time-frequency resource set, and any one of the resource elements included in the second time-frequency resource set and any one of the resource elements 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.

As one embodiment, the second set of time-frequency resources includes M subcarriers in the frequency domain, where M1 subcarriers are included in the M subcarriers, M1 is a positive integer greater than 1, and M is a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

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

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

As an embodiment, a ratio between the transmission energy of the first synchronization signal at each occupied resource element and the transmission energy of the first broadcast signal at each occupied resource element 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 one embodiment, the target index belongs to one of a first index set or a second index set, the first index set including a positive integer number of indexes greater than 1, the second index set including a positive integer index 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 outside the first information block.

For one embodiment, the second receiver 1302 receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

Example 14

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

In embodiment 14, a first transmitter 1401 transmits a first synchronization signal; the second transmitter 1402 sends a first broadcast signal, the first broadcast signal carrying a target index, the target index being a non-negative integer; the first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the 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 the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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 second transmitter 1402 sends a first reference signal; a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on 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 using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node device or the second node device or the UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, eMTC device, NB-IoT device, redCap device, wearable device, industrial sensor, vehicle-mounted communication device, aircraft, plane, unmanned plane, remote control plane, and other wireless communication devices. The base station device or the base station or the network side device in the present application includes, but is not limited to, wireless communication devices such as a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a relay satellite, a satellite base station, an air base station, and the like.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should 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 that receives 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 comprising a positive integer number of sequentially arranged modulation symbols greater than 1, the modulation symbols included in the first modulation symbol sequence being mapped to resource elements included in the second set of time-frequency resources, any one of the resource elements included in the second set of time-frequency resources and any one of the resource elements included in the first set of time-frequency resources occupying different symbols in the 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 includes M subcarriers in the frequency domain, M1 subcarriers being included in the M subcarriers, M1 being a positive integer greater than 1, M being a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

4. A first node device according to any of claims 1-3, characterized in that the target time-frequency resource subset 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 time-frequency resource set includes consecutive subcarriers in the frequency domain, two subcarriers of the second time-frequency resource set at the extreme edge included in the frequency domain are two subcarriers of the M2 subcarriers, respectively, and M2 is a positive integer greater than 1.

5. A first node device according to any of claims 1-3, characterized in that a target subcarrier is a subcarrier of the target subset of time-frequency resources outside the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

6. The first node device of claim 4, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside of the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside of the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

7. The first node device of any of claims 1,2, 3 and 6, wherein a ratio between the transmission energy of the first synchronization signal at each of the occupied resource elements and the transmission energy of the first broadcast signal at each of the occupied resource elements 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.

8. The first node device of claim 4, wherein a ratio between the transmit energy of each of the occupied resource elements of the first synchronization signal and the transmit energy of each of the occupied resource elements of the first broadcast signal is equal to a first ratio, the first ratio being related to whether the subset of target time-frequency resources is occupied by the first broadcast signal.

9. The first node device of claim 5, wherein a ratio between the transmit energy of each of the occupied resource elements of the first synchronization signal and the transmit energy of each of the occupied resource elements of the first broadcast signal is equal to a first ratio, the first ratio being related to whether the subset of target time-frequency resources is occupied by the first broadcast signal.

10. The first node device of any of claims 1,2, 3, 6, 8, and 9, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

11. The first node device of claim 4, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

12. The first node device of claim 5, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

13. The first node device of claim 7, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

14. The first node device of any of claims 1, 2, 3, 6, 8, 9, 11, 12 and 13, wherein the second receiver receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

15. The first node device of claim 4, wherein the second receiver receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

16. The first node device of claim 5, wherein the second receiver receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

17. The first node device of claim 7, wherein the second receiver receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

18. The first node device of claim 10, wherein the second receiver receives a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

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

a first transmitter that transmits a first synchronization signal;

The first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the same symbol in a time domain; the types of the first synchronization signal and the receiving device of the first broadcast signal are used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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.

20. The second node device according to claim 19, wherein a first modulation symbol sequence is used to generate the first broadcast signal, the first modulation symbol sequence includes a positive integer number of sequentially arranged modulation symbols greater than 1, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second time-frequency resource set, and any one of the resource elements included in the second time-frequency resource set and any one of the resource elements 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.

21. The second node device according to claim 20, wherein the second set of time-frequency resources comprises M subcarriers in the frequency domain, M1 subcarriers being included in the M subcarriers, M1 being a positive integer greater than 1, M being a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

22. The second node device according to any of claims 19-21, wherein the target time-frequency resource subset 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 time-frequency resource set includes consecutive subcarriers in the frequency domain, two subcarriers of the second time-frequency resource set at the extreme edge included in the frequency domain are two subcarriers of the M2 subcarriers, respectively, and M2 is a positive integer greater than 1.

23. The second node device according to any of claims 19-21, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

24. The second node device of claim 22, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside of the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside of the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

25. The second node device according to any of claims 19, 20, 21 and 24, wherein the ratio between the transmission energy of the first synchronization signal at each of the occupied resource elements and the transmission energy of the first broadcast signal at each of the occupied resource elements 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.

26. The second node device of claim 22, wherein a ratio between the transmission energy of each of the occupied resource elements of the first synchronization signal and the transmission energy of each of the occupied resource elements of 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.

27. The second node device of claim 23, wherein a ratio between the transmission energy of each of the occupied resource elements of the first synchronization signal and the transmission energy of each of the occupied resource elements of 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.

28. The second node device of any of claims 19, 20, 21, 24, 26, and 27, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

29. The second node device of claim 22, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

30. The second node device of claim 23, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

31. The second node device of claim 25, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

32. The second node device according to any of claims 19, 20, 21, 24, 26, 27, 29, 30 and 31, wherein the second transmitter transmits a first reference signal;

33. The second node device of claim 22, wherein the second transmitter transmits a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

34. The second node device of claim 23, wherein the second transmitter transmits a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

35. The second node device of claim 25, wherein the second transmitter transmits a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

36. The second node device of claim 28, wherein the second transmitter transmits a first reference signal; wherein a first sequence is used to generate 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 a resource element included in the first resource element set in a time domain, a first subsequence is mapped on the resource element included in the first resource element set and occupying the first symbol, the first subsequence includes a positive integer number of complex symbols greater than 1, and any 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, the target resource element subset is occupied by the first reference signal, the target resource element subset comprises a positive integer number of resource elements larger than 1, the second symbol is one symbol occupied by the resource elements included in the target resource element subset in the time domain, the first sub-sequence is mapped on the resource elements included in the target resource element subset and occupying the second symbol, and the target resource element subset and the first resource element set are orthogonal.

37. A method in a first node for use in wireless communications, comprising:

Receiving a first synchronization signal;

The first synchronization signal occupies a first time-frequency resource set, the second time-frequency resource set is occupied by the first broadcast signal, a target time-frequency resource subset is orthogonal to the second time-frequency resource set, and the target time-frequency resource subset and the first time-frequency resource set comprise the same symbol in a time domain; the type of the first node is used to determine whether the target subset of time-frequency resources is occupied by the first broadcast signal; the subcarrier spacing of the subcarriers included in the frequency domain of the first time-frequency resource set is equal to the first subcarrier spacing, the subcarrier spacing of the subcarriers included in the frequency domain of the second time-frequency resource set is equal to the first subcarrier spacing, and the frequency band to which the first time-frequency resource set 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.

38. The method in the first node of claim 37,

A first modulation symbol sequence is used for generating the first broadcast signal, the first modulation symbol sequence comprises a positive integer number of modulation symbols which are greater than 1 and are sequentially arranged, the modulation symbols included in the first modulation symbol sequence are mapped to resource elements included in the second time-frequency resource set, and any one resource element included in the second time-frequency resource set and any one 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.

39. The method in the first node of claim 38, wherein,

The second time-frequency resource set comprises M subcarriers in a frequency domain, wherein M subcarriers comprise M1 subcarriers, M1 is a positive integer greater than 1, and M is a positive integer not less than M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

40. The method according to any of claims 37 to 39, wherein the target time-frequency resource subset 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 time-frequency resource set includes consecutive subcarriers in the frequency domain, two subcarriers of the second time-frequency resource set at the extreme edge included in the frequency domain are two subcarriers of the M2 subcarriers, respectively, and M2 is a positive integer greater than 1.

41. The method according to any of claims 37 to 39, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

42. The method of claim 40, wherein the target sub-carrier is a sub-carrier of the subset of target time-frequency resources outside of the sub-carriers included in the frequency domain, and wherein the target sub-carrier is a sub-carrier of the first set of time-frequency resources outside of the sub-carriers included in the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

43. The method according to any of claims 37, 38, 39 and 42, wherein the ratio between the transmission energy of each occupied resource element of the first synchronization signal and the transmission energy of each occupied resource element of the first broadcast signal is equal to a first ratio, said first ratio being related to whether the target subset of time-frequency resources is occupied by the first broadcast signal.

44. The method of claim 40, wherein a ratio between the transmit energy of each of the occupied resource elements of the first synchronization signal and the transmit energy of each of the occupied resource elements of the first broadcast signal is equal to a first ratio, the first ratio being related to whether the subset of target time-frequency resources is occupied by the first broadcast signal.

45. The method of claim 41, wherein a ratio between the transmission energy of each of the occupied resource elements of the first synchronization signal and the transmission energy of each of the occupied resource elements of 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.

46. The method in a first node of any of claims 37, 38, 39, 42, 44, and 45, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

47. The method of claim 40, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices including a positive integer number of indices greater than 1, the second set of indices including a positive integer number of 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 outside the first information block.

48. The method of claim 41, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

49. The method of claim 43, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

50. A method in a first node according to any one of claims 37, 38, 39, 42, 44, 45, 47, 48 and 49, comprising:

Receiving a first reference signal;

51. The method in the first node of claim 40, comprising:

Receiving a first reference signal;

52. The method in the first node of claim 41, comprising:

Receiving a first reference signal;

53. The method of claim 43, comprising:

Receiving a first reference signal;

54. The method in a first node of claim 46, comprising:

Receiving a first reference signal;

55. A method in a second node for use in wireless communications, comprising:

Transmitting a first synchronization signal;

56. The method of claim 55, wherein a first modulation symbol sequence is used to generate the first broadcast signal, the first modulation symbol sequence comprising a positive integer number of sequentially arranged modulation symbols greater than 1, the modulation symbols included in the first modulation symbol sequence being mapped to resource elements included in the second set of time-frequency resources, any one of the resource elements included in the second set of time-frequency resources and any one of the resource elements included in the first set of time-frequency resources occupying different symbols in the 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.

57. The method of claim 56, wherein said second set of time-frequency resources comprises M subcarriers in the frequency domain, said M subcarriers comprising M1 subcarriers, said M1 being a positive integer greater than 1, said M being a positive integer not less than said M1; any one modulation symbol mapped on a resource element included in the second time-frequency resource set and occupying one subcarrier of the M1 subcarriers in a frequency domain is one of the X1 modulation symbols, and the M1 subcarriers are orthogonal to the subcarriers included in the first time-frequency resource set in the frequency domain; the distribution of the M1 subcarriers in the M subcarriers is predefined, or 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.

58. The method according to any of claims 55 to 57, wherein the target time-frequency resource subset 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 time-frequency resource set includes consecutive subcarriers in the frequency domain, two subcarriers of the second time-frequency resource set at the extreme edge included in the frequency domain are two subcarriers of the M2 subcarriers, respectively, and M2 is a positive integer greater than 1.

59. The method according to any of the claims 55 to 57, wherein a target subcarrier is a subcarrier of the target subset of time-frequency resources outside the subcarriers comprised by the frequency domain, the target subcarrier being a subcarrier of the first set of time-frequency resources outside the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

60. The method of claim 58, wherein the target subcarrier is a subcarrier of the subset of target time-frequency resources outside of the subcarriers comprised by the frequency domain, and wherein the target subcarrier is a subcarrier of the set of first time-frequency resources outside of the subcarriers comprised by the frequency domain; the position of the target subcarrier in the frequency domain is between the position of one subcarrier included in the frequency domain of the target time-frequency resource subset and the position of one subcarrier included in the frequency domain of the first time-frequency resource set.

61. The method according to any of claims 55, 56, 57 and 60, wherein the ratio between the transmission energy of each occupied resource element of the first synchronization signal and the transmission energy of each occupied resource element of the first broadcast signal is equal to a first ratio, said first ratio being related to whether the target subset of time-frequency resources is occupied by the first broadcast signal.

62. The method of claim 58, wherein a ratio between the transmission energy of each of the occupied resource elements of the first synchronization signal and the transmission energy of each of the occupied resource elements of the first broadcast signal is equal to a first ratio, the first ratio being related to whether the subset of target time-frequency resources is occupied by the first broadcast signal.

63. The method of claim 59, wherein a ratio between the transmission energy of each of the occupied resource elements of the first synchronization signal and the transmission energy of each of the occupied resource elements of 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.

64. The method in a second node according to any of claims 55, 56, 57, 60, 62 and 63, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

65. The method of claim 58, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

66. The method of claim 59, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices including a positive integer number of indices greater than 1, the second set of indices including a positive integer number of 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 outside the first information block.

67. The method of claim 61, wherein the target index belongs to one of a first set of indices or a second set of indices, the first set of indices comprising a positive integer number of indices greater than 1, the second set of indices comprising a positive integer number of 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 outside the first information block.

68. A method in a second node according to any of claims 55, 56, 57, 60, 62, 63, 65, 66 and 67, comprising:

Transmitting a first reference signal;

69. The method in the second node of claim 58, comprising:

Transmitting a first reference signal;

70. The method in a second node according to claim 59, comprising:

Transmitting a first reference signal;

71. The method in the second node of claim 61, comprising:

Transmitting a first reference signal;

72. The method in the second node of claim 64, comprising:

Transmitting a first reference signal;