CN114337958B

CN114337958B - Method and apparatus in a node for wireless communication

Info

Publication number: CN114337958B
Application number: CN202011071338.8A
Authority: CN
Inventors: 刘瑾; 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2024-03-22
Anticipated expiration: 2040-10-09
Also published as: CN114337958A

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node receives a first signaling; and performing channel sensing in the first resource pool; transmitting a third signaling; any first-type time-frequency resource block in the first resource pool occupies L continuous frequency domain resource units in a frequency domain; the first signaling indicates the L and a first priority; the first time-frequency resource block is overlapped with the time-frequency resource occupied by the first reference signal; the first priority and the second priority are used together to determine a first threshold; the measurement for the first reference signal and the first threshold are used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the third signaling is used to indicate the first alternative resource pool. The method and the device effectively execute coordination among the users and avoid continuous interference among the users.

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 related to a Sidelink (sidlink) in wireless communication.

Background

Starting from LTE (Long Term Evolution ), 3GPP (3 rd Generation Partner Project, third generation partnership project) has been developing SL (Sidelink) as a direct communication means between users, and the first NR SL (New Radio Sidelink, new air interface Sidelink) standard of "5G V2X with NR Sidelink" has been completed in Rel-16 (Release-16, release 16). In Rel-16, NR SL is mainly designed for V2X (Vehicle-To-evaluation), but it can also be used for Public Safety (Public Safety).

However, due to time constraints, NR SL Rel-16 cannot fully support the service requirements and operating scenarios identified by 3GPP for 5g v2 x. The 3GPP will therefore enhance NR SL in Rel-17.

Disclosure of Invention

In Rel-16 systems, due to the distributed system of NR SL, users (UE) autonomously select resources, and half duplex (i.e. users cannot transmit and receive simultaneously) or Hidden node (Hidden UE) problems are very likely to cause a pair of users or multiple users to select the same SL resource to send signals. Causing constant interference between users and resource collision. Adding Inter-user coordination (Inter-UE coordination) is a viable approach to solving Inter-user resource collisions. However, how to effectively perform inter-user coordination, ensure resource overhead minimization, and reduce latency requirements remains to be studied.

Aiming at the problems, the application discloses a specific method for coordination among SL users, which effectively reduces resource expenditure and time delay requirements. It should be noted that, without conflict, the embodiments in the user equipment and the features in the embodiments of the present application may be applied to the base station, and vice versa. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict. Further, while the purpose of the present application is for SL, the present application can also be used for UL (Uplink). Further, while the present application is primarily directed to single carrier communications, the present application can also be used for multi-carrier communications. Further, while the present application is primarily directed to single antenna communications, the present application can also be used for multiple antenna communications. Further, although the present application is initially directed to a V2X scenario, the present application is also applicable to a communication scenario between a terminal and a base station, between a terminal and a relay, and between a relay and a base station, to achieve similar technical effects in a V2X scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to V2X scenarios and communication scenarios of terminals with base stations) also helps to reduce hardware complexity and cost.

It should be noted that the term (terminal) in the present application is explained with reference to the definitions in the specification protocols TS36 series, TS37 series and TS38 series of 3GPP, but can also refer to the definitions of the specification protocols of IEEE (Institute of Electrical and Electronics Engineers ).

The application discloses a method used in a first node of wireless communication, comprising the following steps:

receiving a first signaling;

performing channel awareness in a first resource pool;

transmitting a third signaling;

the first resource pool comprises M first-class time-frequency resource blocks, wherein any one of the M first-class time-frequency resource blocks occupies L continuous frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the sender of the first signaling and the sender of the second signaling are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness includes measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool.

As one embodiment, the problem to be solved by the present application is: the resource collision and continuous interference problems between users are caused by the autonomous selection of resources by users.

As one embodiment, the method of the present application is: effectively triggering the receiving user to assist in channel perception.

As one embodiment, the method of the present application is: an association is established between the first priority and the second priority.

As one embodiment, the method of the present application is: an association is established between the received first signaling and the received second signaling and channel awareness.

As one embodiment, the method of the present application is: an association is established between the received first priority and the received second priority and a first threshold.

As an embodiment, the above method is characterized in that the first signaling only carries the first priority and the required number of consecutive frequency domain resource units, L, and does not carry any resource scheduling information.

As an embodiment, the above method is characterized in that two received priorities, a first priority and a second priority, are used for determining the first threshold and performing channel sensing.

As an embodiment, the above method has the advantage of effectively performing inter-user coordination on the premise of ensuring resource overhead and delay requirements, thereby avoiding inter-user resource collision and continuous interference.

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

monitoring a fourth signaling in the first receive resource pool;

receiving the first wireless signal on a third time-frequency resource block;

the first receiving resource pool comprises X third class time-frequency resource blocks, wherein the third time-frequency resource blocks are one third class time-frequency resource block in the X third class time-frequency resource blocks; the fourth signaling indicating the third time-frequency resource block, the fourth signaling including the first priority; the N second class time-frequency resource blocks included in the first candidate resource pool are respectively associated to N third class time-frequency resource blocks in the first receiving resource pool, and X is a positive integer not smaller than N.

According to one aspect of the application, the above method is characterized in that the third signaling comprises N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first candidate resource pool, respectively.

receiving a target signaling;

wherein the target signaling includes a first field, the first field in the target signaling indicating one of a positive integer number of first class values or a positive integer number of second class values;

When the first field in the target signaling indicates one of the positive integer number of first class values, the target signaling is the first signaling, the target signaling is used to trigger the sending of the third signaling;

when the second field in the target signaling indicates one of the positive integer number of second class values, the target signaling is the second signaling, the target signaling is used to schedule a second data block, the second data block is used to generate a second wireless signal, the second wireless signal includes the first reference signal.

According to an aspect of the present application, the above method is characterized in that the first node is a user equipment.

According to an aspect of the present application, the above method is characterized in that the first node is a relay node.

According to an aspect of the present application, the above method is characterized in that the first node is a base station.

The application discloses a method used in a second node of wireless communication, comprising the following steps:

transmitting a first signaling;

receiving a third signaling;

wherein the first signaling includes a first priority, the first priority being a priority of a first data block; the time-frequency resource reserved for the first data block comprises L continuous frequency domain resource units in the frequency domain, wherein the first signaling is used for indicating L, and L is a positive integer; the first signaling is not used to schedule the first data block; the third signaling indicates a first alternative resource pool, wherein the first alternative resource pool comprises N second class time-frequency resource blocks, and N is a positive integer.

transmitting a fourth signaling;

transmitting the first wireless signal on a third time-frequency resource block;

wherein the fourth signaling comprises the first priority, the fourth signaling being used to indicate the third time-frequency resource block comprising L consecutive frequency-domain resource units in the frequency domain; the third time-frequency resource block is associated to a second time-frequency resource block, which is one of the N second type time-frequency resource blocks included in the first candidate resource pool; the first data block is used to generate the first wireless signal.

According to one aspect of the application, the above method is characterized in that the third signaling comprises N third class sub-signaling; the N third class sub-signaling is received on the N second class time-frequency resource blocks comprised by the first candidate resource pool, respectively.

According to an aspect of the present application, the method is characterized in that the first signaling includes a first field, the first field in the first signaling indicates one of a positive integer number of first class values, and the first signaling is used to trigger the receiving of the third signaling.

According to an aspect of the present application, the above method is characterized in that the second node is a user equipment.

According to an aspect of the present application, the above method is characterized in that the second node is a relay node.

According to an aspect of the present application, the above method is characterized in that the second node is a base station.

The application discloses a method used in a third node of wireless communication, comprising the following steps:

transmitting a second signaling and a first reference signal;

wherein the second signaling includes a second priority, and the second signaling indicates a time-frequency resource occupied by the first reference signal; the second signaling includes a first field, the first field in the second signaling indicating one of a positive integer number of second class values, the second signaling being used to schedule a second data block, the second data block being used to generate a second wireless signal, the second wireless signal including the first reference signal.

According to an aspect of the present application, the above method is characterized in that the third node is a user equipment.

According to an aspect of the present application, the above method is characterized in that the third node is a relay node.

According to an aspect of the present application, the above method is characterized in that the third node is a base station.

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

a first receiver that receives a first signaling; and performing channel sensing in the first resource pool;

a first transmitter that transmits a third signaling;

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

a second transmitter transmitting the first signaling;

a second receiver that receives a third signaling;

The application discloses a third node used for wireless communication, which is characterized by comprising:

a third transmitter transmitting the second signaling and the first reference signal;

As one example, the present application has the following advantages:

the problem to be solved by the present application is: the problem of resource collision and continuous interference between users is caused by the autonomous selection of resources by the users;

-the present application effectively triggers the receiving user assistance for channel awareness;

-the present application establishes an association between the first priority and the second priority;

-the present application establishes an association between the received first signaling and the received second signaling and channel awareness;

-the present application establishes an association between the received first priority and the received second priority and a first threshold;

in this application, the first signaling carries only the first priority and the number of consecutive frequency domain resource units required, L, without carrying any resource scheduling information;

in the present application, two received priorities, a first priority and a second priority, are used to determine a first threshold and to perform channel sensing;

the method and the device effectively execute inter-user coordination on the premise of guaranteeing resource overhead and delay requirements, so that inter-user resource collision and continuous interference are avoided.

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 process flow diagram of a first node according to one embodiment of the present application;

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

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

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the present application;

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

FIG. 6 illustrates a flow chart for performing channel awareness according to one embodiment of the present application;

FIG. 7 is a schematic diagram of a relationship between a first resource pool, a first time-frequency resource block, time-frequency resources occupied by a first reference signal, and a second time-frequency resource block and a first alternative resource pool according to one embodiment of the present application;

fig. 8 is a schematic diagram illustrating a relationship between N second class time-frequency resource blocks and N third class sub-signaling in a first alternative resource pool according to an embodiment of the present application;

FIG. 9 shows a block diagram of a processing device for use in a first node according to one embodiment of the present application;

FIG. 10 illustrates a block diagram of a processing apparatus for use in a second node according to one embodiment of the present application;

Fig. 11 shows a block diagram of a processing arrangement for use in a third node according to an embodiment of the present application.

Detailed Description

The technical solution 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 process flow diagram of a first node of one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step.

In embodiment 1, a first node in the present application first performs step 101, and receives a first signaling; step 102 is executed again, and channel sensing is executed in the first resource pool; then, step 103 is executed to send a third signaling; the first resource pool comprises M first-class time-frequency resource blocks, any one of the M first-class time-frequency resource blocks occupies L continuous frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the sender of the first signaling and the sender of the second signaling are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness includes measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool.

As an embodiment, the first resource pool is used for Sidelink (SL) transmission.

As an embodiment, the first Resource Pool comprises all or part of the resources of a sidelink Resource Pool (SL Resource Pool).

As an embodiment, the first resource pool comprises all or part of the resources of a sidelink transmit resource pool (SL Transmission Resource Pool).

As an embodiment, the first resource pool comprises all or part of the resources of a sidelink reception resource pool (SL Reception Resource Pool).

As an embodiment, the first resource pool comprises PSCCH (Physical Sidelink Control Channel ).

As an embodiment, the first resource pool includes a PSSCH (Physical Sidelink Shared Channel ).

As an embodiment, the first resource pool comprises a PSFCH (Physical Sidelink Feedback Channel ).

As an embodiment, the first resource pool is used for transmitting SL CSI-RS (Sidelink Channel State Information Reference Signal ).

As an embodiment, the first resource pool is used for transmission PSCCH DMRS (Demodulation Reference Signal ).

As an embodiment, the first resource pool is used for transmission PSSCH DMRS.

As an embodiment, the first resource pool comprises a plurality of REs (Resource Elements, resource units).

As an embodiment, any RE of the REs included in the first resource pool occupies one multi-carrier Symbol (Symbol) in the time domain and one Subcarrier (Subcarrier) in the frequency domain.

As an embodiment, the first resource pool is configured by higher layer signaling (Higher Layer Signalling).

As an embodiment, the first resource pool is configured by RRC (Radio Resource Control ) layer signaling.

As an embodiment, the first resource pool is configured by MAC (Multimedia Access Control ) layer signaling.

As an embodiment, the first resource pool is Preconfigured.

As an embodiment, the first resource pool includes M first type time-frequency resource blocks, and any one of the M first type time-frequency resource blocks includes a plurality of REs.

As an embodiment, the first resource pool includes M first type time-frequency resource blocks, and any one of the M first type time-frequency resource blocks includes L consecutive frequency domain resource units in the frequency domain.

As an embodiment, the first resource pool includes M first type time-frequency resource blocks, and any one of the M first type time-frequency resource blocks includes a positive integer number of multicarrier symbols (symbols) in a time domain.

As an embodiment, the first resource pool includes M first type time-frequency resource blocks, and any one of the M first type time-frequency resource blocks includes a positive integer number of slots (slots) in a time domain.

As an embodiment, the first resource pool includes subcarriers of subcarriers occupied by any two first-type time-frequency resource blocks in the frequency domain in the M first-type time-frequency resource blocks with equal subcarrier intervals.

As an embodiment, the first resource pool includes the same number of physical resource blocks included in the sub-channels occupied by any two first-type time-frequency resource blocks in the frequency domain in the M first-type time-frequency resource blocks.

As one example, M is a positive integer greater than 1.

As one example, L is a positive integer.

As one embodiment, any one of the L consecutive frequency domain resource units includes a positive integer number of subcarriers (subcarriers).

As an embodiment, any one of the L consecutive frequency domain resource units includes a positive integer number of PRBs(s) (Physical Resource Block(s), physical resource blocks).

As an embodiment, any one of the L consecutive frequency domain resource units comprises a positive integer number of subchannels (sub-channels).

As an embodiment, any one of the L consecutive frequency domain resource units is a subchannel.

As an embodiment, the L consecutive frequency domain resource units are L consecutive subchannels, respectively.

As an embodiment, any one of the M first type time-frequency resource blocks included in the first resource pool includes a PSCCH.

As an embodiment, any one of the M first type time-frequency resource blocks included in the first resource pool includes a PSSCH.

As an embodiment, the first signaling includes one or more fields in a PHY Layer (Physical Layer) signaling.

As an embodiment, the first signaling comprises one or more domains in one SCI (Sidelink Control Information ).

As an embodiment, the first signaling comprises a SCI.

As an embodiment, the first signaling comprises a first level SCI format (1 ^st -stage SCI format).

As an embodiment, the first signaling comprises at least one of a plurality of fields of a first level SCI format and a second level SCI format (2 ^nd -stage SCI format).

As an embodiment, the SCI definition refers to chapter 8.3 and chapter 8.4 of 3gpp ts 38.212.

As an embodiment, the definition of the first level SCI format is referred to section 8.3 of 3gpp ts 38.212.

As an embodiment, the definition of the second level SCI format is referred to section 8.4 of 3gpp ts 38.212.

As an embodiment, the first signaling comprises all or part of a higher layer signaling.

As an embodiment, the first signaling comprises all or part of an RRC layer signaling.

As an embodiment, the first signaling comprises one or more fields (field) in one RRC IE (Information Element ).

As an embodiment, the first signaling comprises all or part of a PC5-RRC signaling.

As an embodiment, the first signaling comprises all or part of a MAC layer signaling.

As an embodiment, the first signaling includes one or more domains in a MAC CE (Control Element).

As an embodiment, the channel occupied by the first signaling comprises a PSCCH.

As an embodiment, the channel occupied by the first signaling includes a PSSCH.

As an embodiment, the first signaling is carried on at least one of a PSCCH and a PSCCH.

As one embodiment, the first signaling transport channel awareness information (Sensing Information).

As one embodiment, the first signaling transports sidelink channel awareness information (SL Sensing Information).

As one embodiment, the first signaling transport resource selection information (Resource Selection Information).

As one embodiment, the first signaling transport sidelink resource selection information (SL Resource Selection Information).

As an embodiment, the first signaling is not used for transporting scheduling information (Scheduling Information).

As an embodiment, the first signaling is not used to transport sidelink scheduling information (SL Scheduling Information).

As an embodiment, the first signaling includes a second field, the second field being used to indicate the M first class time-frequency resource blocks.

As one embodiment, the physical layer channel carrying the first signaling includes a PSCCH and the first signaling is not used to schedule a PSSCH.

As an embodiment, the physical layer channel carrying the first signaling comprises a PSCCH and the first signaling is not used to schedule transmission of one transport block.

As an embodiment, the first signaling includes a third field that indicates that the first signaling is not used to schedule the PSSCH when given a value.

As an embodiment, the first signaling indicates the first priority.

As an embodiment, the first signaling indicates L and a first priority.

As an embodiment, the first signaling includes L and a first priority.

As an embodiment, the first signaling comprises a plurality of domains, and the L and the first priority are at least two of the plurality of domains comprised by the first signaling, respectively.

As an embodiment, both the L of the first signaling indication and the first priority are used for the channel sensing.

As an embodiment, the L and the first priority included in the first signaling are both used for the channel sensing.

As an embodiment, the first signaling is not associated to any PSSCH.

As an embodiment, the first signaling is not used to indicate any PSSCH.

As an embodiment, the first signaling is not used for scheduling the first data block.

As an embodiment, the first signaling is not used to indicate any time-frequency resource block.

As an embodiment, the first signaling is not used to indicate time-frequency resources occupied by any wireless signal generated by the first data block.

As one embodiment, the first data block is used to generate a positive integer number of first type radio signals, the first signaling not being used to schedule any of the positive integer number of first type radio signals.

As an embodiment, the first data block is used to generate a positive integer number of radio signals of a first type, and the first signaling is not used to indicate time-frequency resources occupied by any one of the positive integer number of radio signals of the first type.

As an embodiment, the first signaling is not used for scheduling the first data block, the first signaling comprising the first priority, the first priority being a priority of the first data block.

As an embodiment, the first signaling is not used to indicate time-frequency resources occupied by any wireless signal of the first type generated by the first data block, the first signaling comprising the first priority, the first priority being a priority of the first data block.

As an embodiment, the first signaling is not used to indicate any PSSCH, and the first signaling includes the first priority, which is a priority of the one PSSCH to be received by the first node.

As an embodiment, the first signaling indicates a priority of a first data block to be received by the first node.

As an embodiment, the first signaling indicates the number of frequency domain resource units included in the frequency domain of the PSSCH to be received by the first node.

As an embodiment, the first signaling indicates a number of frequency domain resource units occupied by a first wireless signal to be received by the first node in a frequency domain, and the first data block is used to generate the first wireless signal.

As an embodiment, the second signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the second signaling comprises one or more fields in one SCI.

As an embodiment, the second signaling comprises a SCI.

As an embodiment, the second signaling includes one or more fields in a first level SCI format.

As an embodiment, the second signaling includes at least one of a plurality of domains of a first level SCI format and at least one of a plurality of domains of a second level SCI format.

As an embodiment, the second signaling comprises all or part of a higher layer signaling.

As an embodiment, the second signaling includes all or part of an RRC layer signaling.

As an embodiment, the second signaling includes one or more fields in an RRC IE.

As an embodiment, the second signaling comprises one or more domains in a PC5-RRC signaling.

As an embodiment, the second signaling comprises all or part of a MAC layer signaling.

As an embodiment, the second signaling includes one or more domains in one MAC CE.

As an embodiment, the channel occupied by the second signaling comprises a PSCCH.

As an embodiment, the channel occupied by the second signaling includes a PSSCH.

As an embodiment, the second signaling transport schedule information (Scheduling information).

As one embodiment, the second signaling transport sidelink scheduling information (SL scheduling information).

As an embodiment, the second signaling is used to schedule a second data block comprising a positive integer number of bits.

As an embodiment, the second signaling indicates the first reference signal.

As an embodiment, the first reference signal is used for demodulating the second data block.

As an embodiment, the second signaling indicates the second priority.

As an embodiment, the second priority is a priority of the second data block.

As an embodiment, the second signaling indicates time-frequency resources occupied by the first reference signal.

As an embodiment, the second signaling includes the second priority and time-frequency resources occupied by the first reference signal.

As an embodiment, the second signaling includes a plurality of domains, and the second priority and the time-frequency resource occupied by the first reference signal are at least two of the plurality of domains included in the second signaling, respectively.

As an embodiment, the second priority indicated by the second signaling and the time-frequency resources occupied by the first reference signal are both used for the channel perception.

As an embodiment, the first priority is a positive integer.

As an embodiment, the first priority is configured by higher layer signaling.

As an embodiment, the first priority is one positive integer of P positive integers, and P is a positive integer.

As an embodiment, the first priority is a positive integer from 1 to P.

As an embodiment, said P is equal to 8.

As an embodiment, said P is equal to 9.

As an embodiment, the first priority is a priority of a first data block, the first data block being generated at a sender of the first signaling.

As an embodiment, the first priority is a priority of the first wireless signal in the present application.

As an embodiment, the second priority is a positive integer.

As an embodiment, the second priority is configured by higher layer signaling.

As an embodiment, the second priority is one positive integer of P positive integers, and P is a positive integer.

As an embodiment, the second priority is a positive integer from 1 to P.

As an embodiment, the first priority is a positive integer from 1 to P, and the second priority is a positive integer from 1 to P.

As an embodiment, the second priority is a priority of a second data block, the second data block being generated at a sender of the second signaling.

As an embodiment, the first signaling includes the first priority, the second signaling includes the second priority, the first priority is a priority of the first data block, the second priority is a priority of the second data block, the first data block is generated by a sender of the first signaling, and the second data block is generated by a sender of the second signaling.

As an embodiment, the first priority and the second priority are both reception priorities.

As an embodiment, the first priority and the second priority are both priorities of receiving data blocks.

As an embodiment, the first priority is a priority of the first data block, the second priority is a priority of the second data block, and the first node is a recipient of the first data block and the second data block.

As an embodiment, a first signaling indicates the first priority, a second signaling indicates the second priority, and the first node is a recipient of the first signaling and the second signaling.

As an embodiment, a first signaling indicates the first priority, a second signaling indicates the second priority, the first node is a receiver of the first signaling, and the first signaling is also a receiver of the second signaling.

As an embodiment, the third signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the third signaling comprises one or more fields in one SCI.

As an embodiment, the third signaling comprises a SCI.

As an embodiment, the third signaling comprises HARQ (Hybrid Automatic Repeat reQuest ).

As an embodiment, the third signaling includes HARQ-ACK (HARQ-Acknowledge, hybrid automatic repeat request-acknowledgement).

As an embodiment, the channel occupied by the second signaling includes a PSFCH.

As one embodiment, the second signaling transport coordination information (Coordination information).

As an embodiment, the second signaling transports Inter-user coordination information (Inter-UE Coordination information).

As an embodiment, the second signaling indicates the first alternative resource pool.

As an embodiment, the second signaling indicates the N second class time-frequency resource blocks included in the first candidate resource pool.

As an embodiment, the third signaling includes the first priority.

As an embodiment, the multi-carrier symbol is an SC-FDMA (Single-carrier-frequency division multiple access) symbol.

As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the multicarrier symbol is an FDMA (Frequency Division Multiple Access ) symbol.

As an embodiment, the multi-Carrier symbol is an FBMC (Filter Bank Multi-Carrier ) symbol.

As an embodiment, the multicarrier symbol is an IFDMA (Interleaved Frequency Division Multiple Access ) symbol.

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 by some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, NG-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data 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 application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. In NTN networks, examples of the gNB203 include satellites, aircraft, or ground base stations relayed through satellites. The gNB203 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. gNB203 is connected to 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)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data 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 first node in the present application comprises the UE201.

As an embodiment, the second node in the present application includes the UE241.

As an embodiment, the third node in the present application includes the UE241.

As an embodiment, the user equipment in the present application includes the UE201.

As an embodiment, the user equipment in the present application includes the UE241.

As an embodiment, the base station device in the present application includes the gNB203.

As an embodiment, the receiver of the first signaling in the present application includes the UE201.

As an embodiment, the sender of the first signaling in the present application includes the UE241.

As an embodiment, the receiver of the second signaling in the present application includes the UE201.

As an embodiment, the sender of the second signaling in the present application includes the UE241.

As an embodiment, the receiver of the first reference signal in the present application includes the UE201.

As an embodiment, the sender of the first reference signal in the present application includes the UE241.

As an embodiment, the sender of the third signaling in the present application includes the UE201.

As an embodiment, the receiver of the third signaling in the present application includes the UE241.

As an embodiment, the receiver of the fourth signaling in the present application includes the UE201.

As an embodiment, the sender of the fourth signaling in the present application includes the UE241.

As an embodiment, the receiver of the first wireless signal in the present application includes the UE201.

As an embodiment, the sender of the first wireless signal in the present application includes the UE241.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node device (RSU in UE or V2X, in-vehicle device or in-vehicle communication module) and a second node device (gNB, RSU in UE or V2X, in-vehicle device or in-vehicle communication module), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node device and the second node device and the two UEs 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 data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for the first node device to the second node device. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical 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 applicable to the first node in the present application.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the third node in the present application.

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

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

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

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

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

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

As an embodiment, the first wireless signal in the present application is transmitted to the PHY301 via the MAC sublayer 302.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 in communication with each other in an access network.

The first communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The second communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

In the transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the first communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal at the second communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.

As an embodiment, the first node in the present application includes the second communication device 450, and the second node in the present application includes the first communication device 410.

As an embodiment, the first node in the present application includes the second communication device 450, and the third node in the present application includes the first communication device 410.

As an embodiment, the first node in the present application includes the second communication device 450, the second node in the present application includes the first communication device 410, and the third node in the present application includes the first communication device 410.

As a sub-embodiment of the above embodiment, the first node is a user equipment, the second node is a user equipment, and the third node is a user equipment.

As a sub-embodiment of the above embodiment, the first node is a user equipment, the second node is a relay node, and the third node is a relay node.

As a sub-embodiment of the above embodiment, the first node is a user equipment, the second node is a relay node, and the third node is a user equipment.

As a sub-embodiment of the above embodiment, the first node is a relay node, the second node is a user equipment, and the third node is a user equipment.

As a sub-embodiment of the above embodiment, the first node is a relay node, the second node is a relay node, and the third node is a user equipment.

As a sub-embodiment of the above embodiment, the second communication device 450 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for HARQ operations.

As a sub-embodiment of the above embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

As an embodiment, the second communication device 450 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 communication device 450 means at least: receiving a first signaling; performing channel awareness in a first resource pool; transmitting a third signaling; the first resource pool comprises M first-class time-frequency resource blocks, any one of the M first-class time-frequency resource blocks occupies L continuous frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the sender of the first signaling and the sender of the second signaling are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness includes measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first signaling; performing channel awareness in a first resource pool; transmitting a third signaling; the first resource pool comprises M first-class time-frequency resource blocks, any one of the M first-class time-frequency resource blocks occupies L continuous frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the sender of the first signaling and the sender of the second signaling are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness includes measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool.

As one embodiment, the first communication device 410 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 first communication device 410 means at least: transmitting a first signaling; receiving a third signaling; the first signaling includes a first priority, the first priority being a priority of a first data block; the time-frequency resource reserved for the first data block comprises L continuous frequency domain resource units in the frequency domain, wherein the first signaling is used for indicating L, and L is a positive integer; the first signaling is not used to schedule the first data block; the third signaling indicates a first alternative resource pool, wherein the first alternative resource pool comprises N second class time-frequency resource blocks, and N is a positive integer.

As one embodiment, the first communication 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 signaling; receiving a third signaling; the first signaling includes a first priority, the first priority being a priority of a first data block; the time-frequency resource reserved for the first data block comprises L continuous frequency domain resource units in the frequency domain, wherein the first signaling is used for indicating L, and L is a positive integer; the first signaling is not used to schedule the first data block; the third signaling indicates a first alternative resource pool, wherein the first alternative resource pool comprises N second class time-frequency resource blocks, and N is a positive integer.

As one embodiment, the first communication device 410 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 first communication device 410 means at least: transmitting a second signaling and a first reference signal; the second signaling includes a second priority, and the second signaling indicates time-frequency resources occupied by the first reference signal; the second signaling includes a first field, the first field in the second signaling indicating one of a positive integer number of second class values, the second signaling being used to schedule a second data block, the second data block being used to generate a second wireless signal, the second wireless signal including the first reference signal.

As one embodiment, the first communication 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 second signaling and a first reference signal; the second signaling includes a second priority, and the second signaling indicates time-frequency resources occupied by the first reference signal; the second signaling includes a first field, the first field in the second signaling indicating one of a positive integer number of second class values, the second signaling being used to schedule a second data block, the second data block being used to generate a second wireless signal, the second wireless signal including the first reference signal.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving first signaling in the present application.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving second signaling in the present application.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used for receiving the first reference signal in the present application.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used in the present application to perform channel sensing in a first resource pool.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 458, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 is used for transmitting third signaling in the present application.

As an embodiment at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used in the present application to monitor the fourth signaling in the first receive resource pool.

As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 is used in the present application to receive a first wireless signal on a third time-frequency resource block.

As an example, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting the first signaling in the present application.

As an example, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting second signaling in the present application.

As an example, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting the first reference signal in the present application.

As an embodiment at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used for receiving third signaling in the present application.

As an example, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting fourth signaling in the present application.

As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, the memory 476 is used for transmitting the first wireless signal on the third time-frequency resource block in the present application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 5. In fig. 5, communication is performed between the first node U1 and the second node U2 and between the first node U1 and the third node U3 via an air interface.

For the followingFirst node U1Receiving a first signaling in step S11; performing channel sensing in a first resource pool in step S12; transmitting a third signaling in step S13; monitoring a fourth signaling in the first receiving resource pool in step S14; the first wireless signal is received on a third time-frequency resource block in step S15.

For the followingSecond node U2Transmitting a first signaling in step S21; receiving a third signaling in step S22; transmitting a fourth signaling in step S23; in step S24, at a third time-frequency resourceThe first wireless signal is transmitted on the source block.

For the followingThird node U3The second signaling and the first reference signal are transmitted in step S31.

In embodiment 5, the first resource pool includes M first type time-frequency resource blocks, where any one of the M first type time-frequency resource blocks occupies L consecutive frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the second node U2 and the third node U3 are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness comprises the first node U1 measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together by the first node U1 to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool; the third signaling includes N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first alternative resource pool respectively; the first receiving resource pool comprises X third class time-frequency resource blocks, wherein the third time-frequency resource blocks are one third class time-frequency resource block in the X third class time-frequency resource blocks; the fourth signaling indicating the third time-frequency resource block, the fourth signaling including the first priority; the N second class time-frequency resource blocks included in the first candidate resource pool are respectively associated to N third class time-frequency resource blocks in the first receiving resource pool, and X is a positive integer not smaller than N.

As an embodiment, the communication between the first node U1 and the second node U2 is performed through a PC5 interface.

As an embodiment, the communication between the first node U1 and the third node U3 is performed through a PC5 interface.

As an embodiment, the first node U1 receives the target signaling.

As one embodiment, the target signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the target signaling comprises one or more fields in one SCI.

As an embodiment, the target signaling comprises a SCI.

As one embodiment, the target signaling includes one or more fields in a first level SCI format.

As an embodiment, the target signaling comprises all or part of a higher layer signaling.

As an embodiment, the target signaling includes all or part of a MAC layer signaling.

As an embodiment, the target signaling includes one or more domains in one MAC CE.

As an embodiment, the channel occupied by the target signaling comprises a PSCCH.

As an embodiment, the channel occupied by the target signaling includes a PSSCH.

As an embodiment, the target signaling is the first signaling.

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

As an embodiment, the target signaling is one of the first signaling or the second signaling.

As an embodiment, the target signaling comprises a first field, the first field in the target signaling indicating that the target signaling is one of the first signaling or the second signaling.

As an embodiment, the target signaling comprises a first field, the first field in the target signaling indicating one of a positive integer number of first class values or a positive integer number of second class values.

As an embodiment, the positive integer number of first class values are positive integer numbers of non-negative integers, respectively.

As an embodiment, the positive integer number of second class values are positive integer numbers of non-negative integers, respectively.

As an embodiment, any one of the positive integer number of first class values is smaller than any one of the positive integer number of second class values.

As an embodiment, any one of the positive integer number of first class values is larger than any one of the positive integer number of second class values.

As an embodiment, the target signaling is the first signaling when the first field in the target signaling indicates one of the positive integer number of first class values; the target signaling is the second signaling when the first field in the target signaling indicates one of the positive integer number of second class values.

As an embodiment, when the first field in the target signaling indicates one of the positive integer number of first class values, the target signaling is used to trigger the sending of the third signaling; when the first field in the target signaling indicates one of the positive integer number of second class values, the target signaling is used to schedule a second wireless signal, the second wireless signal including the first reference signal.

As an embodiment, the first node U1 receives target signaling, the target signaling including a first field, the first field in the target signaling indicating one of a positive integer number of first class values or a positive integer number of second class values; when the first field in the target signaling indicates one of the positive integer number of first class values, the target signaling is the first signaling, the target signaling is used to trigger the sending of the third signaling; when the second field in the target signaling indicates one of the positive integer number of second class values, the target signaling is the second signaling, the target signaling is used to schedule a second data block, the second data block is used to generate a second wireless signal, the second wireless signal includes the first reference signal.

As an embodiment, the sender of the first signaling and the sender of the second signaling are non-co-sited.

As an embodiment, the sender of the first signaling is the second node U2 in the present application, and the sender of the second signaling is the third node U3 in the present application.

As an embodiment, the sender of the first signaling and the sender of the second signaling are two different communication nodes, respectively.

As an embodiment, the sender of the first signaling and the sender of the second signaling are two different user equipments, respectively.

As an embodiment, the sender of the first signaling is a user equipment and the sender of the second signaling is a user relay.

As an embodiment, the Backhaul Link between the sender of the first signaling and the sender of the second signaling is non-ideal (i.e. the delay cannot be ignored).

As an embodiment, the sender of the first signaling and the sender of the second signaling do not share the same set of BaseBand (BaseBand) devices.

As an embodiment, the first alternative resource pool is used for SL transmissions.

As an embodiment, the first alternative resource pool comprises part of the resources of the SL resource pool.

As an embodiment, the first alternative resource pool comprises part of the resources of the SL reception resource pool.

As an embodiment, the first candidate resource pool includes N second-type time-frequency resource blocks, any one of the N second-type time-frequency resource blocks included in the first candidate resource pool includes a plurality of REs, and N is a positive integer.

As an embodiment, the N second type time-frequency resource blocks included in the first candidate resource pool all include L consecutive frequency domain resource units in the frequency domain.

As an embodiment, any one of the N second type time-frequency resource blocks included in the first candidate resource pool includes L consecutive frequency domain resource units in the frequency domain.

As an embodiment, any one of the N second type time-frequency resource blocks included in the first candidate resource pool includes L consecutive subchannels in the frequency domain.

As an embodiment, the N second type time-frequency resource blocks included in the first candidate resource pool are all later in the time domain than the M first type time-frequency resource blocks included in the first resource pool.

As an embodiment, any one of the N second type time-frequency resource blocks included in the first candidate resource pool is associated with one of the M first type time-frequency resource blocks included in the first resource pool.

As an embodiment, the L consecutive frequency domain resource units included in the frequency domain by any one of the N second type time-frequency resource blocks included in the first candidate resource pool are the same as the L consecutive frequency domain resource units included in the frequency domain by one of the M first type time-frequency resource blocks.

As an embodiment, the positive integer number of multicarrier symbols included in the time domain by any one of the N second type time-frequency resource blocks included in the first candidate resource pool is different from the positive integer number of multicarrier symbols included in the time domain by one first type time-frequency resource block in the M first type time-frequency resource blocks by one first type time interval; and L continuous frequency domain resource units included in the frequency domain by any one of the N second class time-frequency resource blocks included in the first alternative resource pool are identical to L continuous frequency domain resource units included in the frequency domain by one of the M first class time-frequency resource blocks.

As an embodiment, the one first type of time interval comprises a positive integer number of time slots.

As an embodiment, the one first type of time interval comprises a positive integer number of multicarrier symbols.

As an embodiment, the first receive resource pool is used for SL reception.

As an embodiment, the first pool of reception resources is used for PSCCH reception.

As an embodiment, the first receive resource pool is used for PSSCH reception.

As an embodiment, the first receive resource pool comprises all or part of the resources in the sidelink resource pool.

As an embodiment, the first receive resource pool comprises all or part of the resources in the sidelink receive resource pool.

As an embodiment, the first receive resource pool comprises a plurality of REs.

As an embodiment, any RE of the REs included in the first reception resource pool occupies one multicarrier symbol in a time domain and one subcarrier in a frequency domain.

As an embodiment, the first receive resource pool is configured by higher layer signaling.

As an embodiment, the first receive resource pool is configured by RRC layer signaling.

As an embodiment, the first receive resource pool is preconfigured.

As an embodiment, the first receiving resource pool includes X third class time-frequency resource blocks, and any third class time-frequency resource block of the X third class time-frequency resource blocks includes L consecutive frequency domain resource units in the frequency domain.

As an embodiment, the first receiving resource pool includes X third class time-frequency resource blocks, and any third class time-frequency resource block of the X third class time-frequency resource blocks includes L consecutive subchannels in the frequency domain.

As an embodiment, the first receiving resource pool includes X third class time-frequency resource blocks, and any third class time-frequency resource block of the X third class time-frequency resource blocks includes a plurality of REs.

As an embodiment, the N second class time-frequency resource blocks included in the first candidate resource pool are respectively associated to N third class time-frequency resource blocks in the X third class time-frequency resource blocks included in the first receiving resource pool, where X is a positive integer not less than the N.

As one embodiment, the X is a positive integer not less than the N.

As an embodiment, the X is equal to the N, and the N second type time-frequency resource blocks included in the first candidate resource pool are respectively associated to the N third type time-frequency resource blocks included in the first receiving resource pool.

As an embodiment, there is a third type of time-frequency resource block in the first receiving resource pool, and any second type of time-frequency resource block in the N second types of time-frequency resource blocks included in the first candidate resource pool is different.

As an embodiment, the N second type time-frequency resource blocks included in the first candidate resource pool are the same as the N third type time-frequency resource blocks included in the first receiving resource pool.

As an embodiment, the first receiving resource pool is later in time domain than the first alternative resource pool.

As an embodiment, any one of the N second type time-frequency resource blocks included in the first candidate resource pool is earlier in the time domain than any one of the third type time-frequency resource blocks in the first receiving resource pool.

As an embodiment, the frequency domain resource occupied by any one of the N second class time-frequency resource blocks included in the first candidate resource pool in the frequency domain is the same as the frequency domain resource occupied by one of the third class time-frequency resource blocks included in the first receiving resource pool in the frequency domain.

As an embodiment, the L consecutive frequency domain resource units occupied by any one of the N second type time-frequency resource blocks included in the first candidate resource pool in the frequency domain are the same as the L consecutive frequency domain resource units occupied by one third type time-frequency resource block included in the first receiving resource pool in the frequency domain.

As an embodiment, the L continuous subchannels occupied by any one of the N second-type time-frequency resource blocks included in the first candidate resource pool in the frequency domain are the same as the L continuous subchannels occupied by one third-type time-frequency resource block included in the first receiving resource pool in the frequency domain.

As an embodiment, the frequency domain resource occupied by any third-class time-frequency resource block of the X third-class time-frequency resource blocks included in the first receiving resource pool in the frequency domain is the L continuous frequency domain resource units.

As an embodiment, the frequency domain resource occupied by any third-class time-frequency resource block of the X third-class time-frequency resource blocks included in the first receiving resource pool in the frequency domain is the L continuous subchannels.

As an embodiment, the third time-frequency resource block is one third type of time-frequency resource blocks of the X third types of time-frequency resource blocks included in the first reception resource pool.

As an embodiment, any RE of the plurality of REs included in the third time-frequency resource block occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

As an embodiment, the third time-frequency resource block includes L consecutive frequency domain resource units in the frequency domain.

As an embodiment, the third time-frequency resource block includes L consecutive subchannels in the frequency domain.

As an embodiment, the fourth signaling includes one or more fields in a PHY layer signaling.

As an embodiment, the fourth signaling comprises one or more fields in one SCI.

As an embodiment, the fourth signaling comprises a SCI.

As an embodiment, the fourth signaling comprises all or part of a higher layer signaling.

As an embodiment, the channel occupied by the fourth signaling includes a PSCCH.

As an embodiment, the channel occupied by the fourth signaling includes a PSSCH.

As an embodiment, the fourth signaling is used to indicate the third time-frequency resource block.

As an embodiment, the fourth signaling indicates time domain resources included in the third time-frequency resource block.

As an embodiment, the fourth signaling indicates frequency domain resources included in the third time-frequency resource block.

As an embodiment, the fourth signaling indicates an index of the third time-frequency resource block in the X third class time-frequency resource blocks included in the first receiving resource pool.

As an embodiment, the fourth signaling includes the first priority.

As an embodiment, the fourth signaling is used to schedule the first wireless signal.

As an embodiment, the fourth signaling is used to indicate the DMRS employed by the first wireless signal.

As an embodiment, the fourth signaling is used to indicate the MCS (Modulation and Coding Scheme, modulation coding scheme) used by the first radio signal.

As an embodiment, the monitoring the fourth signaling refers to receiving based on blind detection, that is, the first node U1 receives a signal in the first receiving resource pool and performs a decoding operation, and when determining that decoding is correct according to CRC bits, determines that the fourth signaling is successfully received in the first receiving resource pool; and when determining that the decoding is incorrect according to the CRC bits, judging that the fourth signaling is not successfully detected in the first receiving resource pool.

As an embodiment, the monitoring the fourth signaling refers to receiving based on coherent detection, that is, the first node U1 performs coherent reception on a wireless signal in the first receiving resource pool with an RS sequence corresponding to the DMRS of the fourth signaling, and measures energy of a signal obtained after the coherent reception; when the energy of the signal obtained after the coherent reception is greater than a first given threshold, judging that the fourth signaling is successfully received in the first receiving resource pool; and when the energy of the signal obtained after the coherent reception is smaller than a first given threshold value, judging that the fourth signaling is not successfully detected in the first receiving resource pool.

As an embodiment, the monitoring the fourth signaling refers to reception based on energy detection, i.e. the first node U1 perceives (Sense) the energy of the wireless signal in the first receiving resource pool and averages over time to obtain the received energy; when the received energy is greater than a second given threshold, judging that the fourth signaling is successfully received in the first receiving resource pool; and when the received energy is smaller than a second given threshold value, judging that the fourth signaling is not successfully detected in the first receiving resource pool.

As an embodiment, the fourth signaling is detected, which means that after the fourth signaling is received based on blind detection, decoding is determined to be correct according to CRC bits.

As an embodiment, the first node U1 receives the first wireless signal on the third time-frequency resource block when the fourth signaling is detected.

As one embodiment, the first wireless signal is transmitted on the SL-SCH.

As an embodiment, the first wireless signal is transmitted on a PSCCH.

As one embodiment, the first wireless signal is transmitted on a PSSCH.

As an embodiment, the first wireless radio signal comprises all or part of a higher layer signaling.

As an embodiment, the first radio signal comprises all or part of an RRC layer signal.

As one embodiment, the first wireless signal includes one or more domains in a PHY layer signaling.

As an embodiment, the first wireless signal comprises a SCI.

As an embodiment, the first wireless signal comprises a second level SCI.

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

As an embodiment, a first data block is used to generate the first wireless signal, the first data block comprising a positive integer number of bits.

As an embodiment, the first data block comprises a positive integer number of bits, all or part of the positive integer number of bits comprised by the first data block being used for generating the first wireless signal.

As an embodiment, the first data block includes 1 CW (code word).

As an embodiment, the first data Block includes 1 CB (Code Block).

As an embodiment, the first data Block includes 1 CBG (Code Block Group).

As an embodiment, the first data Block includes 1 TB (Transport Block).

As an embodiment, all or part of the bits of the first data block are sequentially subjected to transmission block level CRC (Cyclic Redundancy Check ) Attachment (Attachment), coding block segmentation (Code Block Segmentation), coding block level CRC Attachment, channel Coding (Channel Coding), rate Matching (Rate Matching), coding block concatenation (Code Block Concatenation), scrambling (scrambling), modulation (Modulation), layer Mapping (Layer Mapping), antenna port Mapping (Antenna Port Mapping), mapping to physical resource blocks (Mapping to Physical Resource Blocks), baseband signal generation (Baseband Signal Generation), modulation and up-conversion (Modulation and Upconversion), and the first wireless signal is obtained.

As an embodiment, the first radio signal is an output of the first data block after passing through a modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a resource element Mapper (Resource Element Mapper), and a multicarrier symbol Generation (Generation) in sequence.

As an embodiment, the channel coding is based on polar (polar) codes.

As an embodiment, the channel coding is based on an LDPC (Low-density Parity-Check) code.

Example 6

Embodiment 6 illustrates a flow chart for performing channel awareness according to one embodiment of the present application, as shown in fig. 6. In fig. 6, first signaling is received in step S601; determining M first-class time-frequency resource blocks in step S602; determining a first threshold list in step S603; receiving a second signaling in step S604; determining a first threshold in step S605; measuring a first reference signal in step S606; determining a second time-frequency resource block in step S607; in step S608, it is determined whether the second time-frequency resource block belongs to the first candidate resource pool; in step S609, it is determined whether the number of the second class of time-frequency resource blocks included in the first alternative resource pool is smaller than N, where N is a positive integer; if yes, updating the first threshold list, and then starting execution from the step S603; if not, the execution is ended.

In embodiment 6, the channel sensing includes receiving second signaling and measuring a first reference signal; the second signaling indicates the second priority and the time-frequency resource occupied by the first reference signal; the first time-frequency resource block is one first type time-frequency resource block overlapped with the time-frequency resource occupied by the first reference signal in the M first type time-frequency resource blocks; the second time-frequency resource block is a second type of time-frequency resource block associated to the first time-frequency resource block; the first priority and the second priority in this application are used together to determine the first threshold; the measurement for the first reference signal and the first threshold are used together to determine whether the second time-frequency resource block belongs to the first candidate resource pool.

As an embodiment, the channel sensing includes receiving a second signaling, measuring a first reference signal and determining whether a second time-frequency resource block belongs to the first candidate resource pool.

As an embodiment, the channel sensing includes determining M first type time-frequency resource blocks, determining a first threshold list, receiving a second signaling, determining the first threshold, measuring a first reference signal, determining a second time-frequency resource block, and determining whether the second time-frequency resource block belongs to a first candidate resource pool.

As an embodiment, the channel awareness is used to determine the first pool of alternative resources.

As an embodiment, the channel sensing is performed in units of L consecutive frequency domain resource units.

As an embodiment, the granularity of the channel perception is L consecutive frequency domain resource units.

As an embodiment, the L of the first signaling indication is used to determine the M first type time-frequency resource blocks from the first resource pool, and any one of the M first type time-frequency resource blocks includes L consecutive frequency domain resource units.

As one embodiment, the first threshold pool comprises a positive integer number of first class thresholds.

As an embodiment, the unit of any first class threshold in the first threshold pool is dBm (millidecibel).

As an embodiment, the unit of any first class threshold in the first threshold pool is dB (decibel).

As an embodiment, the unit of any one of the first class of thresholds in the first pool of thresholds is mW (milliwatt).

As an embodiment, the unit of any first type of threshold in the first threshold pool is W (watts).

As an embodiment, the first threshold pool comprises 64 first class thresholds.

As an embodiment, any first type of threshold in the first threshold pool is a non-positive integer.

As one example, any first class threshold in the first pool of thresholds is (-128+ (n-1) ×2) dBm, n being a positive integer no greater than 65.

As one embodiment, any of the first class of thresholds in the first pool of thresholds is one of negative infinity (minus definition) dBm, (-128+ (n-1) ×2) dBm, or positive infinity (definition) dBm, n being a positive integer no greater than 65.

As one embodiment, the first threshold pool includes [ -definition dBm, -128dBm, -126dBm ].

As an embodiment, any two adjacent thresholds in the first threshold pool, except the first threshold and the last threshold, differ by 2dB.

As an embodiment, the first threshold pool includes a positive integer number of first class threshold lists, any one of the positive integer number of first class threshold lists includes a positive integer number of first class thresholds, and the first threshold list is one of the positive integer number of first class threshold lists included in the first threshold pool.

As an embodiment, the first threshold list includes a positive integer number of first type thresholds, and any one of the positive integer number of first type thresholds included in the first threshold list belongs to one of the first type thresholds in the first threshold pool.

As an embodiment, the first priority included in the first signaling is used to determine the first threshold list from the positive integer number of first class threshold lists included in the first threshold pool.

As an embodiment, the first priority included in the first signaling indicates an index of the first threshold list in the positive integer number of first class threshold lists included in the first threshold pool.

As an embodiment, the first node monitors the first resource pool for the second signaling.

As an embodiment, the channel awareness comprises receiving the second signaling in the first resource pool.

As an embodiment, the second signaling indicates a time-frequency resource occupied by the first reference signal, and the time-frequency resource occupied by the first reference signal includes a positive integer number of REs(s).

As an embodiment, the second signaling indicates a time-frequency resource occupied by the first reference signal, where the time-frequency resource occupied by the first reference signal includes a positive integer number of multicarrier symbols in a time domain and a positive integer number of subcarriers in a frequency domain.

As an embodiment, the second signaling indicates a time-frequency resource occupied by the second wireless signal, and the time-frequency resource occupied by the second wireless signal includes a positive integer number of REs(s).

As one embodiment, the second signaling indicates a time-frequency resource occupied by the second wireless signal, where the time-frequency resource occupied by the second wireless signal includes a positive integer number of multicarrier symbols in a time domain and a positive integer number of subcarriers in a frequency domain.

As an embodiment, the second signaling indicates time-frequency resources occupied by a second wireless signal, and the second wireless signal includes the first reference signal.

As an embodiment, the second signaling indicates time-frequency resources occupied by a second wireless signal, and the first reference signal is used to demodulate the second wireless signal.

As an embodiment, the second signaling indicates a fourth time-frequency resource block, the fourth time-frequency resource block comprising a plurality of REs.

As an embodiment, the second signaling indicates a fourth time-frequency resource block comprising a plurality of multicarrier symbols in the time domain and a positive integer number of PRBs(s) in the frequency domain.

As an embodiment, the second signaling indicates a fourth time-frequency resource block, which includes a plurality of multicarrier symbols in the time domain and a positive integer number of subchannels in the frequency domain.

As an embodiment, any RE of the plurality of REs included in the fourth time-frequency resource block belongs to the first resource pool.

As an embodiment, any one RE of the plurality of REs included in the fourth time-frequency resource block is one RE of the plurality of REs included in the first resource pool.

As an embodiment, the fourth time-frequency resource block comprises a PSCCH.

As an embodiment, the fourth time-frequency resource block includes a PSSCH.

As an embodiment, the fourth time-frequency resource block includes a PSCCH and a PSSCH.

As an embodiment, the second signaling indicates the fourth time-frequency resource block, which includes time-frequency resources occupied by the second radio signal and time-frequency resources occupied by the first reference signal, which is used for demodulating the second radio signal.

As an embodiment, any one of the positive integer number of REs(s) included in the time-frequency resource occupied by the second radio signal belongs to the fourth time-frequency resource block, any one of the positive integer number of REs(s) included in the time-frequency resource occupied by the first reference signal belongs to the fourth time-frequency resource block, and the first reference signal is used for demodulating the first radio signal.

As an embodiment, at least one of the M first type time-frequency resource blocks included in the first resource pool overlaps with a time-frequency resource occupied by the first reference signal.

As an embodiment, the time-frequency resource occupied by the first reference signal includes a plurality of REs.

As an embodiment, the time-frequency resource occupied by the first reference signal includes a positive integer number of multicarrier symbols in the time domain.

As an embodiment, the time-frequency resource occupied by the first reference signal includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the time-frequency resource occupied by the first reference signal includes a positive integer number of PRBs(s) in the frequency domain.

As an embodiment, at least one RE of the plurality of REs included in at least one first-type time-frequency resource block of the M first-type time-frequency resource blocks is the same as one RE of the plurality of REs included in the time-frequency resource occupied by the first reference signal.

As an embodiment, at least one of the M first type time-frequency resource blocks includes at least one of the positive integer number of multicarrier symbols in the time domain that is the same as one of the positive integer number of multicarrier symbols that the time-frequency resource occupied by the first reference signal includes in the time domain.

As an embodiment, at least one multicarrier symbol included in the time domain by at least one time-frequency resource block of the first class of the M time-frequency resource blocks is the same as one multicarrier symbol included in the time domain by the time-frequency resource occupied by the first reference signal.

As an embodiment, at least one time-frequency resource block of the first type of the M time-frequency resource blocks of the first type includes one multicarrier symbol of the positive integer number of multicarrier symbols included in the time domain by time-frequency resources occupied by the first reference signal in at least one time slot of the positive integer number of time slots included in the time domain.

As an embodiment, at least one multicarrier symbol in the positive integer number of multicarrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belongs to at least one time slot in the positive integer number of time slots included in the time domain by at least one time-frequency resource block in the M first type of time-frequency resource blocks.

As an embodiment, all multicarrier symbols in the positive integer number of multicarrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belong to at least one time slot in the positive integer number of time slots included in the time domain by at least one time-frequency resource block of the first type of M time-frequency resource blocks of the first type.

As an embodiment, at least one multi-carrier symbol of the positive integer number of multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal and the positive integer number of multi-carrier symbols included in the time domain by at least one time-frequency resource block of the first class of M time-frequency resource blocks belong to the same time slot.

As an embodiment, the positive integer number of multicarrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal and the positive integer number of multicarrier symbols included in the time domain by at least one time-frequency resource block of the first class of time-frequency resource blocks of the M first class of time-frequency resource blocks belong to the same time slot.

As an embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain by at least one first type of time-frequency resource block in the M first type of time-frequency resource blocks is the same as one subcarrier of the positive integer subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal.

As an embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer subcarrier included in the frequency domain by at least one time-frequency resource block of the first class of the M time-frequency resource blocks of the first class.

As an embodiment, the positive integer number of subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of subcarriers included in the frequency domain by at least one time-frequency resource block of the M first type time-frequency resource blocks.

As an embodiment, the positive integer number of subcarriers included in the frequency domain by at least one of the M first type time-frequency resource blocks belongs to the positive integer number of subcarriers included in the frequency domain by time-frequency resources occupied by the first reference signal.

As an embodiment, at least one PRB of the positive integer number of PRBs(s) included in the frequency domain by at least one first type of time-frequency resource blocks of the M first type of time-frequency resource blocks is the same as one PRB of the positive integer number of PRBs(s) included in the frequency domain by the time-frequency resource occupied by the first reference signal.

As an embodiment, the positive integer number of PRBs(s) included in the frequency domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of PRBs(s) included in the frequency domain by at least one first type of time-frequency resource blocks in the M first type of time-frequency resource blocks.

As an embodiment, the positive integer number of PRBs(s) included in the frequency domain by at least one of the M first type time-frequency resource blocks belongs to the positive integer number of PRBs(s) included in the frequency domain by time-frequency resources occupied by the first reference signal.

As one embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain of the time-frequency resource occupied by the first reference signal is different from one subcarrier of the positive integer subcarriers included in the frequency domain of at least one time-frequency resource block of the first class of M time-frequency resource blocks of the first class; at least one multi-carrier symbol in the positive integer multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal is the same as one multi-carrier symbol in the positive integer multi-carrier symbols included in the time domain by at least one first type time-frequency resource block in the M first type time-frequency resource blocks.

As one embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain of the time-frequency resource occupied by the first reference signal is different from one subcarrier of the positive integer subcarriers included in the frequency domain of at least one time-frequency resource block of the first class of M time-frequency resource blocks of the first class; the positive integer number of multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of multi-carrier symbols included in the time domain by at least one first type of time-frequency resource block in the M first types of time-frequency resource blocks.

As one embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain by at least one first type of time-frequency resource blocks in the M first type of time-frequency resource blocks is different from one subcarrier of the positive integer subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal; the positive integer number of multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of multi-carrier symbols included in the time domain by at least one first type of time-frequency resource block in the M first types of time-frequency resource blocks.

As an embodiment, at least one PRB of the positive integer number of PRBs(s) included in the frequency domain of the time-frequency resource occupied by the first reference signal is different from one PRB of the positive integer number of PRBs(s) included in the frequency domain of at least one first-type time-frequency resource block of the M first-type time-frequency resource blocks; the positive integer number of multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of multi-carrier symbols included in the time domain by at least one first type of time-frequency resource block in the M first types of time-frequency resource blocks.

As an embodiment, at least one PRB of the positive integer number of PRBs(s) included in the frequency domain by at least one of the M first type time-frequency resource blocks is different from one PRB of the positive integer number of PRBs(s) included in the frequency domain by the time-frequency resource occupied by the first reference signal; the positive integer number of multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal belongs to the positive integer number of multi-carrier symbols included in the time domain by at least one first type of time-frequency resource block in the M first types of time-frequency resource blocks.

As an embodiment, the second signaling is used to schedule a second data block, which is used to generate the second wireless signal.

As an embodiment, the second wireless signal comprises the second data block, the second data block comprising a positive integer number of bits.

As an embodiment, the second data block is used for generating the second wireless signal, the second data block comprising a positive integer number of bits.

As an embodiment, all or part of bits of the second data block are sequentially subjected to transmission block level CRC attachment, coding block segmentation, coding block level CRC attachment, channel coding, rate matching, coding block concatenation, scrambling, modulation, layer mapping, antenna port mapping, mapping to physical resource blocks, baseband signal generation, modulation and up-conversion to obtain the second wireless signal.

As an embodiment, the second radio signal is output after the second data block sequentially passes through a modulation mapper, a layer mapper, a precoding, a resource element mapper, and a multicarrier symbol occurrence.

As an embodiment, the first reference signal comprises a first sequence.

As an embodiment, a first sequence is used to generate the first reference signal.

As an embodiment, the first Sequence is a Pseudo-Random Sequence (Pseudo-Random Sequence).

As an example, the first Sequence is a Low peak to average power ratio Sequence (Low-PAPR Sequence, low-Peak to Average Power Ratio).

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

As one embodiment, the first sequence is an M sequence.

As one embodiment, the first sequence is a ZC (zadoff-Chu) sequence.

As an embodiment, the first sequence is sequentially subjected to sequence Generation (Sequence Generation), discrete fourier transform (Discrete Fourier Transform, DFT), modulation (Modulation) and resource element mapping (Resource Element Mapping), and the first reference signal is obtained after wideband symbol Generation (Generation).

As an embodiment, the first sequence is sequentially subjected to sequence generation, resource element mapping, and wideband symbol generation to obtain the first reference signal.

As an embodiment, the first sequence is mapped onto a positive integer number of REs(s).

As an embodiment, the first reference signal includes a SL DMRS (Demodulation Reference Signal ).

As an embodiment, the first reference signal comprises PSCCH DMRS.

As an embodiment, the first reference signal comprises PSSCH DMRS.

As an embodiment, the first reference signal includes an UL (Uplink) DMRS.

As an embodiment, the first reference signal comprises a SL CSI-RS (Channel State Information Reference Signal ).

As an embodiment, the first reference signal comprises UL SRS (Sounding Reference Signal ).

As an embodiment, the first reference signal comprises S-SS/PSBCH Block (Sidelink Synchronization Signal/Physical Sidelink Broadcast Channel Block ).

As an embodiment, the first threshold pool comprises a positive integer number of first class thresholds, said first threshold being one of said positive integer number of first class thresholds comprised by said first threshold pool.

As an embodiment, the first priority and the second priority are used together to determine the first threshold, the first threshold being one of the positive integer number of first class thresholds comprised by the first threshold pool.

As an embodiment, the first priority and the second priority are used together to determine the first threshold from the first threshold pool.

As an embodiment, the first threshold is one of the positive integer number of first class thresholds included in the first threshold list.

As an embodiment, the first threshold pool comprises 8 first class threshold lists, the first threshold list comprising 8 first class thresholds.

As an embodiment, the first priority is used to determine the first threshold list from the positive integer number of first class threshold lists included in the first threshold pool, and the second priority is used to determine the first threshold from the positive integer number of first class threshold values included in the first threshold list.

As an embodiment, the first priority indicates an index of the first threshold list in the positive integer number of first class threshold lists included in the first threshold pool, and the second priority indicates an index of the first threshold in the positive integer number of first class threshold values included in the first threshold list.

As an embodiment, the index of the first threshold in the first threshold pool is equal to the sum of C times the first priority and the second priority plus 1, C being a positive integer.

As an embodiment, the index of the first threshold in the first threshold pool is equal to C times the sum of the second priority and the first priority plus 1, C being a positive integer.

As an embodiment, said C is equal to 8.

As an example, said C is equal to 10.

As an embodiment, the first reference signal is measured on the fourth time-frequency resource block.

As an embodiment, the phrase "measuring the first reference signal" includes measuring the first reference signal on time-frequency resources occupied by the first reference signal.

As an embodiment, the phrase "measuring the first reference signal" includes performing coherent detection-based reception on a time-frequency resource occupied by the first reference signal, that is, the first node performs coherent reception on a signal on the time-frequency resource occupied by the first reference signal with the first sequence included in the first reference signal, and measures signal energy obtained after the coherent reception.

As an embodiment, the phrase "measuring the first reference signal" includes performing coherent detection-based reception on a time-frequency resource occupied by the first reference signal, that is, the first node performs coherent reception on a signal on the time-frequency resource occupied by the first reference signal with the first sequence included in the first reference signal, and then performs linear averaging on signal powers received on the plurality of REs included in the time-frequency resource occupied by the first reference signal, so as to obtain a received power.

As an embodiment, the phrase "measuring the first reference signal" includes performing coherent detection based reception on time-frequency resources occupied by the first reference signal, i.e. the first node coherently receives signals on time-frequency resources occupied by the first reference signal with the first sequence comprised by the first reference signal and averages received signal energy on time and frequency domains to obtain a received power.

As an embodiment, the phrase "measuring the first reference signal" includes performing energy detection-based reception on time-frequency resources occupied by the first reference signal, that is, the first node perceives energy of a wireless signal on the plurality of REs included in the time-frequency resources occupied by the first reference signal, respectively, and averages on the plurality of REs included in the time-frequency resources occupied by the first reference signal to obtain a received power.

As an embodiment, the phrase "measuring the first reference signal" includes performing energy detection based reception on the fourth time-frequency resource block, i.e. the first node receives the power of the radio signal on the fourth time-frequency resource block and linearly averages the received signal power to obtain the signal strength indication; the fourth time-frequency resource block includes time-frequency resources occupied by the first reference signal.

As an embodiment, the phrase "measuring the first reference signal" comprises performing energy detection based reception on the fourth time-frequency resource block, i.e. the first node perceives the energy of the wireless signal on the fourth time-frequency resource block and averages over time to obtain a signal strength indication; the fourth time-frequency resource block includes time-frequency resources occupied by the first reference signal.

As an embodiment, the phrase "measuring the first reference signal" includes receiving on the fourth time-frequency resource block based on blind detection, i.e. the first node receives a signal on the fourth time-frequency resource block and performs a decoding operation, determining whether decoding is correct according to CRC bits, so as to obtain a channel quality of the first reference signal on a time-frequency resource occupied by the first reference signal.

As an embodiment, the measurement for the first reference signal is a result after the phrase "measuring the first reference signal".

As an embodiment, the measurement for the first reference signal is a result after the measurement of the first reference signal is performed.

As one embodiment, the measurement for the first reference signal comprises SNR (Signal to Noise Ratio ).

As one embodiment, the measurement for the first reference signal comprises SINR (Signal to Interference plus Noise Ratio ).

As one embodiment, the measurement for the first reference signal comprises SL SINR.

As an embodiment, the measurement for the first reference signal comprises RSRP (Reference Signal Receiving Power, reference signal received power).

As an embodiment, the measurement for the first reference signal comprises SL RSRP.

As an embodiment, the measurement for the first reference signal comprises L1-RSRP (Layer 1-RSRP, layer 1-reference signal received power).

As an embodiment, the measurement for the first reference signal comprises L3-RSRP (Layer 3-RSRP, layer 3-reference signal received power).

As an embodiment, the measurement for the first reference signal comprises RSRQ (Reference Signal Receiving Quality, reference signal received quality).

As an embodiment, the measurement for the first reference signal comprises SL RSRQ.

As an embodiment, the measurement for the first reference signal comprises RSSI.

As an embodiment, the measurement for the first reference signal comprises SL RSSI (Received Signal Strength Indication ).

As an embodiment, the measurement for the first reference signal comprises CQI (Channel Quality Indicator, channel quality indication).

As an embodiment, the measurement for the first reference signal comprises SL CQI.

As an embodiment, the measurement for the first reference signal and the first threshold are used together to determine whether the second time-frequency resource block belongs to the first candidate resource pool.

As an embodiment, the second time-frequency resource block does not belong to the first alternative resource pool when the measurement for the first reference signal is greater than the first threshold; the second set of time-frequency resources belongs to the first pool of alternative resources when the measurement for the first reference signal is less than the first threshold.

As an embodiment, the second time-frequency resource block does not belong to the first alternative resource pool when the measurement for the first reference signal is greater than the first threshold; when the measurement for the first reference signal is equal to the first threshold, the second time-frequency resource block does not belong to the first candidate resource pool; the second set of time-frequency resources belongs to the first pool of alternative resources when the measurement for the first reference signal is less than the first threshold.

As an embodiment, the second time-frequency resource block does not belong to the first alternative resource pool when the measurement for the first reference signal is greater than the first threshold; when the measurement for the first reference signal is equal to the first threshold, the second time-frequency resource block belongs to the first alternative resource pool; the second set of time-frequency resources belongs to the first pool of alternative resources when the measurement for the first reference signal is less than the first threshold.

Example 7

Embodiment 7 illustrates a schematic diagram of a relationship between a first resource pool, a first time-frequency resource block, a time-frequency resource occupied by a first reference signal, and a second time-frequency resource block and a first alternative resource pool according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the dashed box represents the first resource pool in the present application; the rectangles in the dashed boxes represent M first class time-frequency resource blocks in the first resource pool; diagonal filled rectangles represent the first time-frequency resource blocks in the present application; the square lattice filled thin rectangle represents the time-frequency resource occupied by the first reference signal in the application; the thick solid line box represents the first alternative resource pool in this application; the diagonal square filled rectangle represents the second time-frequency resource block in this application.

In embodiment 7, the first resource pool includes the M first type time-frequency resource blocks; the first time-frequency resource block is one first type of time-frequency resource block overlapped with the time-frequency resource occupied by the first reference signal in the M first type of time-frequency resource blocks; the second time-frequency resource block is associated to the first time-frequency resource block; the measurement for the first reference signal and a first threshold in the present application are used to determine whether the second time-frequency resource block belongs to the first candidate resource pool.

As an embodiment, the first time-frequency resource block is one time-frequency resource block of the M first type time-frequency resource blocks included in the first resource pool.

As an embodiment, the first time-frequency resource block overlaps with a time-frequency resource occupied by the first reference signal.

As an embodiment, the first time-frequency resource block is one of the M first type time-frequency resource blocks overlapping with the time-frequency resource occupied by the first reference signal.

As an embodiment, at least one RE of the plurality of REs included in the first time-frequency resource block is the same as one RE of the plurality of REs included in the time-frequency resource occupied by the first reference signal.

As an embodiment, at least one of the positive integer number of multicarrier symbols included in the first time-frequency resource block in the time domain is the same as one of the positive integer number of multicarrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal.

As an embodiment, the one time slot occupied by the first time-frequency resource block in the time domain includes one multicarrier symbol of the positive integer number of multicarrier symbols occupied by the first reference signal in the time domain.

As an embodiment, at least one multicarrier symbol of the positive integer number of multicarrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal and the positive integer number of multicarrier symbols included in the time domain by the first time-frequency resource block belong to the same slot.

As an embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain by the first time-frequency resource block is the same as one subcarrier of the positive integer subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal.

As an embodiment, the positive integer number of subcarriers included in the frequency domain by the first time-frequency resource block includes the positive integer number of subcarriers included in the frequency domain by time-frequency resources occupied by the first reference signal.

As an embodiment, the positive integer number of subcarriers included in the frequency domain by the first time-frequency resource block belongs to the positive integer number of subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal.

As one embodiment, at least one subcarrier of the positive integer subcarriers included in the frequency domain by the time-frequency resource occupied by the first reference signal is different from one subcarrier of the positive integer subcarriers included in the frequency domain by the first time-frequency resource block; at least one multi-carrier symbol of the positive integer multi-carrier symbols included in the time domain by the time-frequency resource occupied by the first reference signal is the same as one multi-carrier symbol of the positive integer multi-carrier symbols included in the time domain by the first time-frequency resource block.

As an embodiment, the second time-frequency resource block is used for sidelink transmission.

As an embodiment, the second time-frequency resource block comprises a PSCCH.

As an embodiment, the second time-frequency resource block includes a PSSCH.

As an embodiment, the second time-frequency resource block comprises a PSFCH.

As an embodiment, the second time-frequency resource block includes a plurality of REs.

As an embodiment, any RE of the plurality of REs included in the second time-frequency resource block occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

As an embodiment, the second time-frequency resource block includes a positive integer number of slots in the time domain.

As an embodiment, the second time-frequency resource block includes a positive integer number of multicarrier symbols in the time domain.

As an embodiment, the second time-frequency resource block includes a positive integer number of subcarriers in the frequency domain.

As an embodiment, the second time-frequency resource block comprises a positive integer number of PRBs(s) in the frequency domain.

As an embodiment, the second time-frequency resource block includes a positive integer number of subchannels in the frequency domain.

As an embodiment, the second time-frequency resource block includes L consecutive frequency domain resource units in the frequency domain.

As an embodiment, the second time-frequency resource block is associated to the first time-frequency resource block.

As an embodiment, the first time-frequency resource block is associated with the second time-frequency resource block.

As an embodiment, the first time-frequency resource block is orthogonal to the second time-frequency resource block.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are orthogonal in the time domain, and the first time-frequency resource block and the second time-frequency resource block occupy the same frequency domain resource.

As an embodiment, the first time-frequency resource block includes L consecutive frequency domain resource units, and the second time-frequency resource block includes L consecutive frequency domain resource units, and the L consecutive frequency domain resource units in the first time-frequency resource block are the same as the L consecutive frequency domain resource units in the second time-frequency resource block.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are orthogonal in the time domain, and the positive integer number of subcarriers occupied by the first time-frequency resource block in the frequency domain is the same as the positive integer number of subcarriers occupied by the second time-frequency resource block in the frequency domain.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are orthogonal in the time domain, and the first time-frequency resource block and the second time-frequency resource block are also orthogonal in the frequency domain.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are two time-frequency resource blocks of TDM (Time Division Multiplexing ) in a sidelink resource pool.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are two time-frequency resource blocks of TDM in a secondary link reception resource pool.

As an embodiment, the first time-frequency resource block is earlier in the time domain than the second time-frequency resource block.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block are two time-frequency resource blocks of TDM in a secondary link resource pool, and the first time-frequency resource block is earlier than the second time-frequency resource block in the time domain.

As an embodiment, the second time-frequency resource block and the first time-frequency resource block are separated by a first time difference in time domain, and the second time-frequency resource block and the first time-frequency resource block occupy the same frequency domain resource.

As an embodiment, the second time-frequency resource block and the first time-frequency resource block are separated by a first time difference in the time domain, and the L consecutive frequency domain resource units included in the frequency domain by the second time-frequency resource block are the same as the L consecutive frequency domain resource units included in the frequency domain by the first time-frequency resource block.

As an embodiment, the first time difference comprises a positive integer number of time domain resource units.

As an embodiment, the first time difference comprises a positive integer number of time slots.

As an embodiment, the first time difference comprises a positive integer number of multicarrier symbols.

As an embodiment, the first resource pool includes a first time-frequency resource group, the first time-frequency resource group includes a plurality of first type time-frequency resource blocks, the first time-frequency resource group includes any two adjacent first type time-frequency resource blocks in the plurality of first type time-frequency resource blocks, the intervals of the first type time-frequency resource blocks in the time domain are equal, and the first time-frequency resource block is one first type time-frequency resource block in the first time-frequency resource group.

As an embodiment, the frequency domain resources occupied by the plurality of first-type time-frequency resource blocks included in the first time-frequency resource group are the same.

As an embodiment, the L consecutive frequency domain resource units included in the frequency domain by any one of the first time-frequency resource blocks in the first time-frequency resource group are the same as the L consecutive frequency domain resource units included in the frequency domain by the first time-frequency resource block.

As an embodiment, the first time-frequency resource block is one of the plurality of first-type time-frequency resource blocks included in the first time-frequency resource group, the second time-frequency resource block is one time-frequency resource block other than the plurality of first-type time-frequency resource blocks included in the first time-frequency resource group, and a time-domain interval between the second time-frequency resource block and a latest one of the first-type time-frequency resource blocks in the first time-frequency resource group is equal to a time-domain interval between any two adjacent time-frequency resource blocks in the plurality of first-type time-frequency resource blocks included in the first time-frequency resource group.

As an embodiment, the second time-frequency resource block is later than any one of the first time-frequency resource blocks in the first time-frequency resource group in the time domain.

As an embodiment, the L consecutive frequency domain resource units included in the frequency domain by the second time-frequency resource block are the same as the L consecutive frequency domain resource units included in any one of the first time-frequency resource blocks in the first time-frequency resource group.

As an embodiment, the second time-frequency resource block is later than any one of the first time-frequency resource blocks in the first time-frequency resource group in the time domain; the L continuous subchannels included in the second time-frequency resource block in the frequency domain are the same as the L continuous subchannels included in any one of the first time-frequency resource blocks in the first time-frequency resource group.

As an embodiment, the interval in the time domain between any two adjacent first type time-frequency resource blocks in the plurality of first type time-frequency resource blocks included in the first time-frequency resource group includes a positive integer number of multicarrier symbols.

As an embodiment, the interval in the time domain between any two adjacent first type time-frequency resource blocks in the plurality of first type time-frequency resource blocks included in the first time-frequency resource group includes a positive integer number of time slots.

As an embodiment, the interval between the second time-frequency resource block and the latest one of the first time-frequency resource blocks in the first time-frequency resource group in the time domain includes a positive integer number of multicarrier symbols.

As an embodiment, the interval between the second time-frequency resource block and the latest one of the first time-frequency resource blocks in the first time-frequency resource group in the time domain includes a positive integer number of time slots.

As an embodiment, the first time-frequency resource block is used to determine the second time-frequency resource block, which is associated to the first time-frequency resource block.

As an embodiment, the second time-frequency resource block includes the L consecutive frequency-domain resource units in the first time-frequency resource block in a frequency domain, and the positive integer number of slots included in the second time-frequency resource block in a time domain is equal to a sum between the positive integer number of slots in the first time-frequency resource block and the first time interval.

As an embodiment, the second time-frequency resource block includes the L consecutive frequency-domain resource units in the first time-frequency resource block in a frequency domain, and the positive integer number of multicarrier symbols included in the second time-frequency resource block in a time domain is equal to a sum between the positive integer number of multicarrier symbols in the first time-frequency resource block and the first time interval, respectively.

As an embodiment, the second time-frequency resource block belongs to the first candidate resource pool.

As an embodiment, the second time-frequency resource block is one second type of time-frequency resource set of the N second type of time-frequency resource blocks included in the first candidate resource pool.

As an embodiment, the second time-frequency resource block does not belong to the first candidate resource pool.

As an embodiment, the second time-frequency resource block is different from any one of the N second type time-frequency resource blocks included in the first candidate resource pool.

Example 8

Embodiment 8 illustrates a schematic diagram of a relationship between N second type time-frequency resource blocks and N third type sub-signaling in a first alternative resource pool according to an embodiment of the present application, as shown in fig. 8. In fig. 8, a thick solid line box represents a first alternative resource pool in the present application; the unfilled rectangle represents one of the N second class time-frequency resource blocks in the present application; the twill filled rectangle represents one of the N third class of sub-signaling in this application.

In embodiment 8, the first alternative resource pool includes N second class time-frequency resource blocks; the third signaling includes N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first candidate resource pool, respectively.

As an embodiment, the N third type sub-signaling corresponds to the N second type time-frequency resource blocks included in the first candidate resource pool one-to-one.

As an embodiment, the N third type sub-signaling is respectively associated with the N second type time-frequency resource blocks included in the first candidate resource pool.

As an embodiment, an association relationship between any one of the N third type of sub-signaling and one of the N second type of time-frequency resource blocks included in the first candidate resource pool is configured.

As an embodiment, the association between any one of the N third-class sub-signaling and one of the N second-class time-frequency resource blocks included in the first candidate resource pool is preconfigured.

As an embodiment, the N third type sub-signaling indicates the N second type time-frequency resource blocks included in the first candidate resource pool, respectively.

As an embodiment, any one of the N third type sub-signaling indicates a time domain resource occupied by one of the N second type time-frequency resource blocks included in the first candidate resource pool.

As an embodiment, any one of the N third type sub-signaling indicates a frequency domain resource occupied by one of the N second type time-frequency resource blocks included in the first candidate resource pool.

As an embodiment, the N third type of sub-signaling are N SCIs, respectively.

As an embodiment, the N third class sub-signaling are N first stage SCIs, respectively.

As an embodiment, the N third type sub-signaling is transmitted on N PSCCHs, respectively.

As an embodiment, the N third type of sub-signaling are N HARQ respectively.

As an embodiment, any one of the N third type of sub-signaling is one of HARQ-ACK or HARQ-NACK.

As an embodiment, the N third type of sub-signaling are N SL-HARQ, respectively.

As an embodiment, the N third type of sub-signaling are N PSFCHs, respectively.

As an embodiment, the N third type sub-signaling is transmitted on N PSFCHs, respectively.

As an embodiment, any one of the N third class of sub-signaling includes the first priority.

Example 9

Embodiment 9 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 9. In embodiment 9, the first node apparatus processing device 900 is mainly composed of a first receiver 901 and a first transmitter 902.

As one example, the first receiver 901 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

As one example, the first transmitter 902 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

In embodiment 9, the first receiver 901 receives a first signaling and performs channel sensing in a first resource pool; the first transmitter 902 transmits a third signaling; the first resource pool comprises M first-class time-frequency resource blocks, any one of the M first-class time-frequency resource blocks occupies L continuous frequency domain resource units in a frequency domain, M is a positive integer greater than 1, and L is a positive integer; the first signaling indicates the L, the first signaling including a first priority; the channel sensing comprises receiving second signaling, wherein the second signaling comprises a second priority, the second signaling indicates time-frequency resources occupied by a first reference signal, and at least one time-frequency resource block of the first class in the M time-frequency resource blocks is overlapped with the time-frequency resources occupied by the first reference signal; the first time-frequency resource block is one of the M first type time-frequency resource blocks which is overlapped with the time-frequency resource occupied by the first reference signal; the sender of the first signaling and the sender of the second signaling are non-co-sited; the first priority and the second priority are used together to determine a first threshold; the channel awareness includes measuring a first reference signal, the measurement for the first reference signal and the first threshold being used together to determine whether a second time-frequency resource block belongs to a first candidate resource pool, the second time-frequency resource block being associated to the first time-frequency resource block; the first alternative resource pool comprises N second class time-frequency resource blocks, any one of the N second class time-frequency resource blocks is associated with one of the M first class time-frequency resource blocks, and N is a positive integer; the third signaling is used to indicate the first alternative resource pool.

As an embodiment, the first receiver 901 monitors the fourth signaling in the first receiving resource pool and receives the first wireless signal on the third time-frequency resource block; the first receiving resource pool comprises X third class time-frequency resource blocks, wherein the third time-frequency resource blocks are one third class time-frequency resource block in the X third class time-frequency resource blocks; the fourth signaling indicating the third time-frequency resource block, the fourth signaling including the first priority; the N second class time-frequency resource blocks included in the first candidate resource pool are respectively associated to N third class time-frequency resource blocks in the first receiving resource pool, and X is a positive integer not smaller than N.

As an embodiment, the third signaling includes N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first candidate resource pool, respectively.

As an embodiment, the first receiver 901 receives a target signaling; the target signaling includes a first field, the first field in the target signaling indicating one of a positive integer number of first class values or a positive integer number of second class values; when the first field in the target signaling indicates one of the positive integer number of first class values, the target signaling is the first signaling, the target signaling is used to trigger the sending of the third signaling; when the second field in the target signaling indicates one of the positive integer number of second class values, the target signaling is the second signaling, the target signaling is used to schedule a second data block, the second data block is used to generate a second wireless signal, the second wireless signal includes the first reference signal.

As an embodiment, the first node device 900 is a user equipment.

As an embodiment, the first node device 900 is a relay node.

As an embodiment, the first node device 900 is a base station device.

Example 10

Embodiment 10 illustrates a block diagram of a processing device for use in a second node, as shown in fig. 10. In fig. 10, the second node apparatus processing device 1000 is mainly constituted by a second transmitter 1001 and a second receiver 1002.

As one example, the second transmitter 1001 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

As one example, the second receiver 1002 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

In embodiment 10, the second transmitter 1001 transmits a first signaling; the second receiver 1002 receives third signaling; the first signaling includes a first priority, the first priority being a priority of a first data block; the time-frequency resource reserved for the first data block comprises L continuous frequency domain resource units in the frequency domain, wherein the first signaling is used for indicating L, and L is a positive integer; the first signaling is not used to schedule the first data block; the third signaling indicates a first alternative resource pool, wherein the first alternative resource pool comprises N second class time-frequency resource blocks, and N is a positive integer.

As an embodiment, the second transmitter 1001 sends fourth signaling and sends the first wireless signal on a third time-frequency resource block; the fourth signaling including the first priority, the fourth signaling being used to indicate the third time-frequency resource block including L consecutive frequency-domain resource elements in the frequency domain; the third time-frequency resource block is associated to a second time-frequency resource block, which is one of the N second type time-frequency resource blocks included in the first candidate resource pool; the first data block is used to generate the first wireless signal.

As an embodiment, the third signaling includes N third class sub-signaling; the N third class sub-signaling is received on the N second class time-frequency resource blocks comprised by the first candidate resource pool, respectively.

As an embodiment, the first signaling comprises a first field, the first field in the first signaling indicating one of a positive integer number of first class values, the first signaling being used to trigger the reception of the third signaling.

As an embodiment, the second node device 1000 is a user device.

As an embodiment, the second node device 1000 is a relay node.

As an embodiment, the second node device 1000 is a base station device.

Example 11

Embodiment 11 illustrates a block diagram of a processing device for use in a third node, as shown in fig. 11. In fig. 11, the third node apparatus processing device 1100 is mainly constituted by a third transmitter 1101.

As one example, third transmitter 1001 includes at least one of antenna 420, transmitter/receiver 418, multi-antenna transmit processor 471, transmit processor 416, controller/processor 475, and memory 476 of fig. 4 of the present application.

In embodiment 11, the third transmitter transmits the second signaling and the first reference signal; the second signaling includes a second priority, and the second signaling indicates time-frequency resources occupied by the first reference signal; the second signaling includes a first field, the first field in the second signaling indicating one of a positive integer number of second class values, the second signaling being used to schedule a second data block, the second data block being used to generate a second wireless signal, the second wireless signal including the first reference signal.

As an embodiment, the third node device 1100 is a user device.

As an embodiment, the second node device 1100 is a relay node.

As an embodiment, the second node device 1100 is a base station device.

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 application is not limited to any specific combination of software and hardware. The first node device in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane and other wireless communication devices. The second node device in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane and other wireless communication devices. The user equipment or UE or 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 device, an eMTC device, an NB-IoT device, an on-board communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane, 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, 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 GNSS, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.

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 modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims

1. A first node for wireless communication, comprising:

a first transmitter that transmits a third signaling;

2. The first node of claim 1, comprising:

the first receiver monitors fourth signaling in a first receiving resource pool;

the first receiver receives a first wireless signal on a third time-frequency resource block;

3. The first node according to claim 1 or 2, wherein the third signaling comprises N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first candidate resource pool, respectively.

4. The first node according to claim 1 or 2, characterized in that,

the first receiver receives a target signaling;

The target signaling comprises a first domain, the first domain in the target signaling indicates one value in a first value interval or a second value interval, the first value interval comprises a positive integer number of first class values, and the second value interval comprises a positive integer number of second class values; when the first field in the target signaling indicates a first class value in the first value interval, the target signaling is the first signaling, and the target signaling is used for triggering the sending of the third signaling; when the first field in the target signaling indicates a second class of values in the second interval of values, the target signaling is the second signaling, the target signaling is used to schedule a second wireless signal, the second wireless signal includes the first reference signal.

5. The first node of claim 3, wherein the first node,

the first receiver receives a target signaling;

6. A second node for wireless communication, comprising:

a second transmitter transmitting the first signaling;

a second receiver that receives a third signaling;

7. The second node of claim 6, comprising:

the second transmitter transmits a fourth signaling;

the second transmitter transmits the first wireless signal on a third time-frequency resource block;

8. The second node according to claim 6 or 7, wherein the third signaling comprises N third class sub-signaling; the N third class sub-signaling is received on the N second class time-frequency resource blocks comprised by the first candidate resource pool, respectively.

9. The second node according to claim 6 or 7, wherein the first signaling comprises a first field, the first field in the first signaling indicating one of a positive integer number of first type values, the first signaling being used to trigger the reception of the third signaling.

10. The second node of claim 8, wherein the first signaling includes a first field, the first field in the first signaling indicating one of a positive integer number of first class values, the first signaling being used to trigger receipt of the third signaling.

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

receiving a first signaling;

and performing channel sensing in the first resource pool;

transmitting a third signaling;

12. The method according to claim 11, comprising:

monitoring a fourth signaling in the first receive resource pool;

receiving the first wireless signal on a third time-frequency resource block;

13. The method according to claim 11 or 12, wherein the third signaling comprises N third class sub-signaling; the N third class sub-signaling is transmitted on the N second class time-frequency resource blocks included in the first candidate resource pool, respectively.

14. The method according to claim 11 or 12, wherein,

receiving a target signaling;

15. The method of claim 13, wherein the step of determining the position of the probe is performed,

receiving a target signaling;

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

transmitting a first signaling;

receiving a third signaling;

17. The method according to claim 16, comprising:

transmitting a fourth signaling;

18. The method according to claim 16 or 17, wherein the third signaling comprises N third class sub-signaling; the N third class sub-signaling is received on the N second class time-frequency resource blocks comprised by the first candidate resource pool, respectively.

19. The method according to claim 16 or 17, wherein the first signaling comprises a first field, the first field in the first signaling indicating one of a positive integer number of first class values, the first signaling being used to trigger the reception of the third signaling.

20. The method of claim 18, wherein the first signaling comprises a first field, the first field in the first signaling indicating one of a positive integer number of first type values, the first signaling being used to trigger receipt of the third signaling.