CN112910608B

CN112910608B - Method and device used in node of wireless communication

Info

Publication number: CN112910608B
Application number: CN201911136310.5A
Authority: CN
Inventors: 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2022-09-27
Anticipated expiration: 2039-11-19
Also published as: CN112910608A

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node performs channel sensing for a first set of time-frequency resource blocks in the first set of time-frequency resource blocks; and transmitting the first signaling and the first signal in the second time-frequency resource block. The first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, and whether the HARQ-ACK corresponding to the first signal is transmitted is related to the result of the channel perception for the first time-frequency resource block. The method improves the reliability of HARQ-ACK transmission and improves the resource utilization rate for HARQ-ACK feedback.

Description

Method and device used in node of 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 method and apparatus related to a Sidelink (Sidelink) in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of multiple application scenarios, research on New Radio interface (NR) technology (or Fifth Generation, 5G) is decided on 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 bunions, and Work on NR is started on WI (Work Item) that has passed NR on 3GPP RAN #75 bunions.

For the rapidly evolving Vehicle-to-evolution (V2X) service, the 3GPP initiated standard formulation and research work under the NR framework. Currently, 3GPP has completed the work of making requirements for service 5G V2X and written standard TS 22.886. The 3GPP defined a 4-large application scenario group (Use Case Groups) for the 5G V2X service, including automatic queuing Driving (sounds platform), Extended sensing support (Extended Sensors), semi/fully automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). NR-based V2X technical research has been initiated on 3GPP RAN #80 congress.

Disclosure of Invention

Compared with the existing LTE (Long-term Evolution) V2X system, the NR V2X has a significant feature of supporting unicast and multicast and supporting HARQ (Hybrid Automatic Repeat reQuest) function. A PSFCH (Physical Sidelink Feedback Channel) Channel is introduced for HARQ-ACK (Acknowledgement) transmission on the secondary link. The PSFCH resources in one sidelink resource pool will be periodically configured or preconfigured according to the results of the 3GPP RAN1#96b conference. According to the result of 3GPP RAN1#97 conference, the slot (slot) and sub-Channel (sub-Channel) occupied by the psch (Physical Sidelink Shared Channel)/PSCCH (Physical Sidelink Control Channel) are used to determine the corresponding PSFCH resource.

When the PSFCHs for different PSSCHs collide in the time/time-frequency domain, a part of the colliding PSFCHs may be discarded, or interference between the colliding PSFCHs may cause a decrease in the reception quality of the PSFCH. In either case, this results in the loss of HARQ-ACK information and consequent waste of resources. In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the sidelink communication scenario as an example, the present application is also applicable to other cellular network communication scenarios, and achieves technical effects similar to those in the sidelink communication scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to sidelink communications and cellular communications) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

performing channel sensing for a first set of time-frequency resource blocks;

sending a first signaling and a first signal in a second time-frequency resource block;

wherein the first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, and whether the HARQ-ACK corresponding to the first signal is transmitted is related to the result of the channel perception for the first time-frequency resource block.

As an embodiment, the problem to be solved by the present application includes: how to avoid the collision of the PSFCHs for different PSSCHs in the time/time-frequency domain. The method dynamically indicates the PSSCH receiving node to send or not send the HARQ-ACK according to the result of channel perception, thereby solving the problem.

As an embodiment, the characteristics of the above method include: the PSFCH resources corresponding to the first time-frequency resource block and the second time-frequency resource block collide in a time domain and/or a time-frequency domain, and the first node determines whether HARQ-ACK corresponding to PSSCH transmitted on the second time-frequency resource block is sent or not through channel perception aiming at the first time-frequency resource block.

As an example, the benefits of the above method include: the HARQ-ACK information loss and/or the interference between the PSFCHs caused by the PSFCH resource conflict are/is avoided, and the reliability of the HARQ-ACK transmission is improved.

As an example, the benefits of the above method include: the utilization of resources for HARQ-ACK transmission is improved.

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

performing a first type of measurement when the channel sensing for the first time-frequency resource block is used to determine that a second signaling is detected;

wherein the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; the first type of measurement is used to determine a first measurement value to which the HARQ-ACK to which the first signal corresponds is transmitted.

As an example, the benefits of the above method include: and allowing the nodes with less mutual interference to share the resources for HARQ-ACK feedback, thereby improving the utilization rate of the resources for HARQ-ACK feedback.

According to one aspect of the present application, wherein the second signaling comprises scheduling information of the second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to the second signal.

monitoring a third signal in a second air interface resource sub-block when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent;

the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of blocks of bits, and the third signal indicates whether the first set of blocks of bits was received correctly.

performing channel sensing for a second set of time-frequency resource blocks in the second set of time-frequency resource blocks;

wherein the result of the channel sensing for the second time frequency resource block is used to determine that the second time frequency resource block belongs to a candidate time frequency resource pool in which the first node selects time frequency resources used for transmission of the first signaling and the first signal.

According to one aspect of the present application, the first time-frequency resource block and the second time-frequency resource block belong to time units in a first time unit set respectively in a time domain, and the first time unit set includes a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

receiving a first information block;

wherein the first information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources that can be used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

According to one aspect of the application, the first node is a user equipment.

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

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

receiving a first signaling and a first signal in a second time frequency resource block;

wherein the first signaling comprises scheduling information of the first signal; a first time-frequency resource block is used for determining a first air interface resource block, a second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal being transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block.

According to one aspect of the application, the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected, a first type of measurement is performed; the first type of measurement is used to determine a first measurement value to which the HARQ-ACK to which the first signal corresponds is transmitted.

According to one aspect of the application, the second signaling comprises scheduling information of the second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to the second signal.

when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent, sending a third signal in a second air interface resource sub-block;

According to an aspect of the present application, the first time-frequency resource block and the second time-frequency resource block belong to time units in a first time unit set respectively in a time domain, and the first time unit set includes a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

receiving a second information block;

wherein the second information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources that can be used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

According to one aspect of the application, the second node is a user equipment.

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

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

a first processor to perform channel sensing for a first set of time-frequency resource blocks in the first set of time-frequency resource blocks;

the first transmitter is used for transmitting a first signaling and a first signal in a second time-frequency resource block;

wherein the first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether HARQ-ACK corresponding to the first signal is transmitted or not, and whether HARQ-ACK corresponding to the first signal is transmitted or not is related to the result of channel perception for the first time-frequency resource block.

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

a second processor, receiving the first signaling and the first signal in a second time-frequency resource block;

As an example, compared with the conventional scheme, the method has the following advantages:

the method avoids the conflict of HARQ-ACK aiming at different data channels on a time domain and/or a time-frequency domain on the secondary link, improves the reliability of HARQ-ACK transmission, and improves the resource utilization rate for HARQ-ACK feedback.

Drawings

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

FIG. 1 illustrates a flow diagram of channel sensing, first signaling and first signals according to one embodiment of the present application;

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

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

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

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

FIG. 6 shows a schematic diagram of a given time-frequency resource block according to an embodiment of the application;

fig. 7 shows a schematic diagram of resource mapping of a given air interface resource block in a time-frequency domain according to an embodiment of the present application;

fig. 8 shows a schematic diagram of a given time-frequency resource block being used for determining a given air interface resource block according to an embodiment of the present application;

fig. 9 shows a diagram of a given time-frequency resource block being used to determine a given air interface resource block according to an embodiment of the present application;

fig. 10 illustrates a diagram of determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application;

fig. 11 illustrates a diagram of determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application;

fig. 12 illustrates a diagram of determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application;

figure 13 shows a schematic diagram of second signaling according to an embodiment of the present application;

fig. 14 illustrates a diagram of a relationship between a first measurement value and whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application;

fig. 15 shows a schematic diagram in which first measurements are used to determine whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the application;

fig. 16 is a diagram illustrating a relationship between whether HARQ-ACKs corresponding to a second signal and a first signal are transmitted according to an embodiment of the present application;

FIG. 17 is a diagram illustrating a relationship between whether a HARQ-ACK corresponding to a second signal is transmitted and whether a HARQ-ACK corresponding to a first signal is transmitted according to one embodiment of the application;

FIG. 18 shows a schematic diagram of a third signal according to an embodiment of the present application;

FIG. 19 shows a diagram of channel sensing for a second time-frequency resource block according to an embodiment of the present application;

FIG. 20 shows a schematic diagram of a first set of time units and a target time unit according to an embodiment of the present application;

FIG. 21 shows a schematic diagram of a first information block according to an embodiment of the application;

FIG. 22 shows a schematic diagram of a first time cell pool, according to an embodiment of the present application;

FIG. 23 shows a block diagram of a processing apparatus for use in a first node device, according to an embodiment of the present application;

fig. 24 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of channel sensing, first signaling and first signals according to an embodiment of the present application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a specific temporal sequence between the various steps.

In embodiment 1, the first node in this application performs channel sensing for a first set of time-frequency resource blocks in step 101; the first signaling and the first signal are transmitted in a second time-frequency resource block in step 102. Wherein the first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, and whether the HARQ-ACK corresponding to the first signal is transmitted is related to the result of the channel perception for the first time-frequency resource block.

As an embodiment, the channel sensing comprises sensing.

As an embodiment, the channel sensing includes energy detection, i.e. sensing (Sense) the energy of the wireless signal and averaging to obtain an average received energy, determining whether one of the first type of signaling is detected according to the average received energy; determining that one of said first class of signalling is monitored if said average received energy is greater than a second given threshold; determining that the first type of signaling is not monitored if the average received energy is not greater than the second given threshold.

As an embodiment, the channel sensing includes coherent detection, that is, coherent reception is performed, and average energy of a signal obtained after the coherent reception is measured, and it is determined whether one signaling of the first type is detected according to the average energy; determining that one of said first class of signalling is monitored if said average energy is greater than a first given threshold; determining that the first type of signaling is not monitored if the average energy is not greater than the first given threshold.

As an embodiment, the channel sensing includes blind decoding, i.e. receiving the signal and performing a decoding operation, determining whether one of the first type of signaling is detected according to CRC (Cyclic Redundancy Check) bits; if the decoding is judged to be correct, determining that one first type of signaling is monitored; and if the judgment and the decoding are not correct, determining that the first type of signaling is not detected.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: and judging whether the first time-frequency resource block is reserved or not.

As an embodiment, the channel sensing for the first block of time-frequency resources comprises: determining whether the first time-frequency resource block is reserved by a node different from the first node.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: and judging whether the first time-frequency resource block is occupied or not.

As an embodiment, the channel sensing for the first block of time-frequency resources comprises: determining whether the first time-frequency resource block is occupied by a node different from the first node.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: determining whether the first time-frequency resource block will be occupied by a node different from the first node.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: and judging whether the first time-frequency resource block can be occupied by the first node.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: and judging whether a first type of signaling is detected to indicate the first time-frequency resource block.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: determining whether a first type of signaling is detected to be used for reserving the first time-frequency resource block.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: determining whether a first type of signaling is detected to be used by a node other than the first node to reserve the first time-frequency resource block.

As one embodiment, the channel sensing for the first block of time and frequency resources comprises: determining whether a first type of signaling is detected indicating that the first block of time frequency resources is to be used by nodes other than the first node for transmitting wireless signals.

As one embodiment, the result of the channel sensing for the first block of time-frequency resources is used to determine: whether the first resource block is reserved by a node other than the first node.

As one embodiment, the result of the channel sensing for the first block of time-frequency resources is used to determine: whether the first empty resource block will be occupied by a node other than the first node.

As one embodiment, the result of the channel sensing for the first block of time-frequency resources is used to determine: whether the first air interface resource block can be occupied by the first node.

In one embodiment, the first time-frequency resource block and the second time-frequency resource block are orthogonal in a time domain.

As an embodiment, a starting time of the second time-frequency resource block is not earlier than an ending time of the first time-frequency resource block.

As an embodiment, the ending time of the first set of time-frequency resource blocks is not later than the ending time of the first time-frequency resource blocks.

In one embodiment, the first set of time-frequency resource blocks includes a positive integer number of time-frequency resource blocks.

As an embodiment, the first set of time frequency resource blocks includes the first set of time frequency resource blocks.

As an embodiment, the first set of time frequency resource blocks does not include the first time frequency resource block.

In one embodiment, the first set of time-frequency resource blocks consists of the first block of time-frequency resources.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block belong to the same serving cell.

As an embodiment, the first time frequency resource block and the second time frequency resource block belong to a same Carrier (Carrier).

As an embodiment, the first time-frequency resource block and the second time-frequency resource block belong to a same BWP (Bandwidth Part).

As an embodiment, the first time-frequency resource block and the second time-frequency resource block belong to a same SL (SideLink) BWP.

As an embodiment, the first signaling is dynamic signaling.

As an embodiment, the first signaling is layer 1(L1) signaling.

As an embodiment, the first signaling is layer 1(L1) control signaling.

As an embodiment, the first signaling includes SCI (Sidelink Control Information).

For one embodiment, the first signaling includes one or more fields (fields) in one SCI.

As an embodiment, the first signaling includes DCI (Downlink Control Information).

As an embodiment, the first signaling is transmitted on a SideLink (SideLink).

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

As one embodiment, the first signaling is transmitted on a DownLink (DownLink).

As an embodiment, the first signaling is transmitted by Unicast (Unicast).

As an embodiment, the first signaling is multicast (Groupcast) transmitted.

As an embodiment, the first signaling is transmitted in a broadcast (borradcast).

As an embodiment, the first signaling indicates the second time-frequency resource block.

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

As an embodiment, the first signal is a baseband signal.

As one embodiment, the first signal is transmitted on a SideLink (SideLink).

As an example, the first signal is transmitted through a PC5 interface.

As one embodiment, the first signal is transmitted by Unicast (Unicast).

As an embodiment, the first signal is transmitted by multicast (Groupcast).

As one embodiment, the first signal is broadcast (borradcast) transmitted.

As an embodiment, the scheduling information includes one or more of occupied time domain resources, occupied frequency domain resources, MCS (Modulation and Coding Scheme), DMRS (DeModulation Reference Signals) configuration information, HARQ process number (process number), RV (Redundancy Version) or NDI (New Data Indicator).

In an embodiment, the time-frequency resources occupied by the first signal and the first signaling are orthogonal to each other.

As an embodiment, the first signaling and the first signal belong to the same slot (slot) in a time domain.

As an embodiment, the first signaling and the first signal belong to the same time unit in a time domain.

As an embodiment, the first signaling and the first signal are transmitted in a first time-frequency resource sub-block and a second time-frequency resource sub-block, respectively, in the second time-frequency resource block; the first time-frequency resource subblock and the second time-frequency resource subblock respectively comprise a positive integer number of REs; the first time-frequency resource sub-block and the second time-frequency resource sub-block form the second time-frequency resource block, and the first time-frequency resource sub-block and the second time-frequency resource sub-block are orthogonal to each other.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies a part of time-domain resources in the second time-frequency resource block in a time domain.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies, in a time domain, the earliest positive integer number of multicarrier symbols in the second time-frequency resource block.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies part of frequency domain resources in the second time-frequency resource block in the frequency domain.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies, in a frequency domain, a lowest positive integer number of sub-channels (sub-channels) in the second time-frequency resource block.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies all frequency-domain resources in the second time-frequency resource block.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource sub-block occupies all time-frequency resources in the second time-frequency resource block.

As one embodiment, the overlap includes a full overlap.

As one embodiment, the overlap comprises a partial overlap.

As one embodiment, the overlapping includes non-orthogonality.

As an embodiment, the first air interface resource block and the second air interface resource block occupy the same time domain resource.

As an embodiment, the time domain resources occupied by the first air interface resource block and the second air interface resource block partially overlap.

As an embodiment, the first air interface resource block and the second air interface resource block occupy the same time domain resource and orthogonal frequency domain resource.

As an embodiment, the first and second air-port resource blocks overlap in a time-frequency domain.

As an embodiment, the first air interface resource block and the second air interface resource block occupy the same time-frequency resource.

As an embodiment, the time-frequency resources occupied by the first air interface resource block and the second air interface resource block partially overlap.

As an embodiment, the first air interface resource block and the second air interface resource block occupy the same time-frequency resource and code domain resource.

As an embodiment, the first air interface resource block and the second air interface resource block occupy the same time-frequency resource and different code domain resources.

As an embodiment, the first air interface resource block is the second air interface resource block.

As an embodiment, the first type of channel is a physical layer channel.

As an embodiment, the first type of channel is a sidelink physical layer feedback channel (i.e. a sidelink channel that can only be used to carry physical layer HARQ feedback).

For one embodiment, the first type of channel is a PSFCH.

As an embodiment, the first type of channel is used for transmitting HARQ-ACK for the secondary link.

As an embodiment, the first type of channel is used for transmitting HARQ-ACK for V2X.

As an embodiment, the first signaling explicitly indicates whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the first signaling implicitly indicates whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the first signaling includes a first field, and the first field in the first signaling indicates whether the HARQ-ACK corresponding to the first signal is transmitted; the first field in the first signaling comprises a positive integer number of bits.

As one embodiment, the first signaling indicates a transmission type (cast type) of the first signal, and the transmission type of the first signal is used to determine whether the HARQ-ACK corresponding to the first signal is transmitted.

As a sub-embodiment of the above embodiment, when the transmission type of the first signal belongs to a first transmission type set, the HARQ-ACK corresponding to the first signal is transmitted; when the transmission type of the first signal belongs to a second transmission type set, the HARQ-ACK corresponding to the first signal is not transmitted; the first set of transmission types and the second set of transmission types are one or more of unicast, multicast, and broadcast, respectively, and there is no transmission type that belongs to both the first set of transmission types and the second set of transmission types.

As an embodiment, the transmission type is one of unicast, multicast or broadcast.

As an embodiment, the HARQ-ACK refers to: hybrid Automatic Repeat request-ACKnowledgement (harq ACKnowledgement).

As an embodiment, the first signal carries a first set of bit blocks, and the HARQ-ACK corresponding to the first signal indicates whether the first set of bit blocks is correctly received.

In one embodiment, the HARQ-ACK corresponding to the first signal includes an ACK.

As an embodiment, the HARQ-ACK corresponding to the first signal includes NACK (Negative ACKnowledgement).

As one embodiment, the result of the channel sensing for the first block of time-frequency resources is used to determine whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that no one of the first type of signaling indications of the first time-frequency resource block is detected, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that one first type of signaling is detected to indicate the first time-frequency resource block, the first signaling indicates that the HARQ-ACK corresponding to the first signal is not transmitted.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that none of the first class of signaling indicates that the first time-frequency resource block is reserved or occupied, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that one first type of signaling indicates that the first time-frequency resource block is reserved or occupied, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, an NG-RAN (next generation radio access network) 202, a 5GC (5G Core network )/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server )/UDM (Unified Data Management) 220, and an internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 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. The NG-RAN202 includes NR (New Radio ) node bs (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through the S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, and the S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem) and a Packet switching (Packet switching) service.

As an embodiment, the first node in the present application includes the UE 201.

As an embodiment, the first node in this application includes the UE 241.

As an embodiment, the second node in this application includes the UE 241.

As an embodiment, the second node in the present application includes the UE 201.

As an embodiment, the air interface between the UE201 and the gNB203 is a Uu interface.

For one embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

As an embodiment, the air interface between the UE201 and the UE241 is a PC5 interface.

As an embodiment, the radio link between the UE201 and the UE241 is a Sidelink (Sidelink).

As an embodiment, the first node in this application is a terminal in the coverage of the gNB203, and the second node in this application is a terminal in the coverage of the gNB 203.

As an embodiment, the first node in this application is a terminal in the coverage of the gNB203, and the second node in this application is a terminal outside the coverage of the gNB 203.

As an embodiment, the first node in this application is a terminal outside the coverage of the gNB203, and the second node in this application is a terminal inside the coverage of the gNB 203.

As an embodiment, the first node in this application is a terminal outside the coverage of the gNB203, and the second node in this application is a terminal outside the coverage of the gNB 203.

As an embodiment, Unicast (Unicast) transmission is supported between the UE201 and the UE 241.

As an embodiment, Broadcast (Broadcast) transmission is supported between the UE201 and the UE 241.

As an embodiment, the UE201 and the UE241 support multicast (Groupcast) transmission.

As an embodiment, the first signaling and the sender of the first signal in the present application comprise the UE 201.

As an embodiment, the first signaling and the receiver of the first signal in this application include the UE 241.

As an embodiment, the performer for channel sensing of the first time-frequency resource block in the present application includes the UE 201.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of radio protocol architecture for the user plane and the control plane according to an embodiment of the application, as shown in fig. 3.

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above the PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

For one embodiment, the channel sensing is performed at the PHY301 or the PHY 351.

For one embodiment, the first signaling is generated from the PHY301 or the PHY 351.

For one embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

For one embodiment, the first signal is generated from the PHY301, or the PHY 351.

For one embodiment, the second signaling is generated from the PHY301 or the PHY 351.

For one embodiment, the second signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

For one embodiment, the first type of measurement is performed at the PHY301 or the PHY 351.

For one embodiment, the third signal is generated from the PHY301, or the PHY 351.

As an embodiment, the first information block is generated in the RRC sublayer 306.

As an embodiment, the second information block is generated in the RRC sublayer 306.

Example 4

Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of 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 communicating with each other in an access network.

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

The second communications 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, at the first communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the 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 HARQ operations, 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., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as constellation mapping 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 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. Transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. 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 multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal 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 multi-carrier symbol stream provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of 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. Receive processor 456 converts the baseband multicarrier symbol stream after the receive 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 signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality 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 DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In a 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 function at the first communications apparatus 410 described in the DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications apparatus 410, implementing L2 layer functions for the user plane and the control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to said first communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the resulting parallel streams are then modulated by the transmit processor 468 into multi-carrier/single-carrier symbol streams, subjected to analog precoding/beamforming in the multi-antenna transmit processor 457, and provided to different antennas 452 via a 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 that is provided to the antenna 452.

In a transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality 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 rf signals through its respective antenna 420, converts the received rf 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 multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. The controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the second communication device 450. Upper layer data packets from the controller/processor 475 may be provided to a core network. Controller/processor 475 is also responsible for error detection using the ACK and/or 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 apparatus at least: performing the channel sensing for the first set of time-frequency resource blocks in this application in the first set of time-frequency resource blocks in this application; and sending the first signaling and the first signal in the application in the second time-frequency resource block in the application. The first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether HARQ-ACK corresponding to the first signal is transmitted or not, and whether HARQ-ACK corresponding to the first signal is transmitted or not is related to the result of channel perception for the first time-frequency resource block.

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 result in actions comprising: performing the channel sensing for the first set of time-frequency resource blocks in this application in the first set of time-frequency resource blocks in this application; and sending the first signaling and the first signal in the application in the second time-frequency resource block in the application. The first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether HARQ-ACK corresponding to the first signal is transmitted or not, and whether HARQ-ACK corresponding to the first signal is transmitted or not is related to the result of channel perception for the first time-frequency resource block.

As an 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: receiving the first signaling and the first signal in the present application in the second time-frequency resource block in the present application. The first signaling comprises scheduling information of the first signal; a first time-frequency resource block is used for determining a first air interface resource block, a second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal being transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving the first signaling and the first signal in the present application in the second time-frequency resource block in the present application. The first signaling comprises scheduling information of the first signal; a first time-frequency resource block is used for determining a first air interface resource block, a second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal being transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block.

As an embodiment, the first node in this application comprises the second communication device 450.

As an embodiment, the second node in this application comprises the first communication device 410.

As an embodiment, at least one of the antennas 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458 is used to perform the channel sensing for the first set of time-frequency resource blocks in this application in the first set of time-frequency resource blocks in this application.

As an example, at least one of { the antennas 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used for receiving the first signaling and the first signal in this application in the second time-frequency resource block in this application; { the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, the data source 467}, is configured to transmit the first signaling and the first signal in the second block of time-frequency resources in the present application.

For one embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458 is used to perform the first type of measurements described herein.

As an example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to monitor the third signal in this application in the second empty resource sub-block in this application; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, and the memory 476 is used to transmit the third signal of the present application in the second air interface resource sub-block of the present application.

As an embodiment, at least one of the antennas 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458 is used for performing the channel sensing for the second set of time-frequency resource blocks in this application in the second set of time-frequency resource blocks in this application.

For one embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is configured to receive the first block of information as described herein.

As an example, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the second information block in this application.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node U1, the first node U2, and the third node U3 are communication nodes that transmit over the air interface two by two. In fig. 5, the steps in blocks F51 through F57, respectively, are optional.

The second node U1, receiving the second information block in step S5101; receiving a first signaling and a first signal in a second time-frequency resource block in step S511; in step S5102, a third signal is sent in the second air interface resource sub-block.

A first node U2 receiving the first information block in step S5201; transmitting the second information block in step S5202; performing channel sensing for the first set of time-frequency resource blocks in step S521; performing a first type of measurement in step S5203; performing channel sensing for the second time-frequency resource block in the second time-frequency resource block set in step S5204; performing a second type of measurement in step S5205; transmitting a first signaling and a first signal in the second time-frequency resource block in step S522; in step S5206, a third signal is monitored in the second air interface resource sub-block.

The third node U3, in step S5301, transmits the first information block.

In embodiment 5, the first signaling includes scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether HARQ-ACK corresponding to the first signal is transmitted or not, and whether HARQ-ACK corresponding to the first signal is transmitted or not is related to the result of channel perception for the first time-frequency resource block.

As an example, the first node U2 is the first node in this application.

As an example, the second node U1 is the second node in this application.

For one embodiment, the third node U3 is a base station.

For one embodiment, the air interface between the second node U1 and the first node U2 is a PC5 interface.

For one embodiment, the air interface between the second node U1 and the first node U2 includes a sidelink.

For one embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between user equipment and user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between a user equipment and a relay node.

For one embodiment, the air interface between the third node U3 and the first node U2 is a Uu interface.

For one embodiment, the air interface between the third node U3 and the first node U2 includes a cellular link.

As an embodiment, the air interface between the third node U3 and the first node U2 comprises a wireless interface between a base station device and a user equipment.

As an embodiment, the first node in this application is a terminal.

As an example, the first node in the present application is an automobile.

As an example, the first node in the present application is a vehicle.

As an example, the first node in this application is an RSU (Road Side Unit).

As an embodiment, the second node in this application is a terminal.

As an example, the second node in the present application is an automobile.

As an example, the second node in this application is a vehicle.

As an embodiment, the second node in this application is an RSU.

In one embodiment, the first time-frequency resource block is used by the first node to determine the first empty resource block, and the second time-frequency resource block is used by the first node to determine the second empty resource block.

As an embodiment, the first time-frequency resource block is used by the second node to determine the first air-interface resource block, and the second time-frequency resource block is used by the second node to determine the second air-interface resource block.

As an example, the step in block F51 in fig. 5 exists; the first information block is used to determine a first pool of time units, the first pool of time units comprising a plurality of time units, any time unit in the first pool of time units comprising time domain resources that may be used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

As an embodiment, the first information block is transmitted on a PSSCH.

As an embodiment, the first information block is transmitted on a PDSCH (Physical Downlink Shared CHannel).

As an embodiment, the first information block is transmitted on a PSBCH (Physical Sidelink Broadcast Channel).

As an embodiment, said first information block is transmitted on a PBCH (Physical Broadcast Channel).

As an example, the step in block F53 in fig. 5 exists; the second block of information is used to determine the first pool of time units.

As one example, the step in block F52 in fig. 5 exists.

As one embodiment, the method in a first node used for wireless communication comprises: and sending the second information block.

As one example, the step in block F52 in fig. 5 is not present.

As an embodiment, the second information block is carried by higher layer (higher layer) signaling.

As an embodiment, the second information block is carried by RRC signaling.

As an embodiment, the second information block is carried by a MAC CE (Medium Access Control layer Control Element) signaling.

As an embodiment, the second information block is transmitted on a SideLink (SideLink).

As an embodiment, the second information block is transferred via a PC5 interface.

As an embodiment, the second information block is transmitted on a downlink.

As an embodiment, the second information block is transmitted over a Uu interface.

As an embodiment, the second Information block includes Information in all or part of fields (fields) in an IE (Information Element).

As an embodiment, the second Information Block includes Information in one or more fields (fields) in a MIB (Master Information Block).

As an embodiment, the second Information Block includes Information in one or more fields (fields) in a SIB (System Information Block).

As an embodiment, the second Information block comprises Information in one or more fields (fields) in RMSI (Remaining System Information).

As an embodiment, the second information block is transmitted by a wireless signal.

As an embodiment, the second information block is transmitted from a sender of the first signal to the second node.

As an embodiment, the second information block is transmitted from a serving cell of the second node to the second node.

As an embodiment, the second information block is passed from a higher layer of the second node to a physical layer of the second node.

As one embodiment, the second information block indicates the first time unit pool.

As one embodiment, the second information block explicitly indicates the first time unit pool.

As one embodiment, the second information block implicitly indicates the first time unit pool.

As an embodiment, the second information block is transmitted on a psch.

As one embodiment, the second information block is transmitted on a PDSCH.

As one embodiment, the second information block is transmitted on a PSBCH.

As an embodiment, the second information block is transmitted on PBCH.

As an example, the step in block F54 of fig. 5 exists when the channel sensing for the first block of time-frequency resources is used to determine that second signaling is detected; said second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; the first type of measurement is used to determine a first measurement value to which the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the first type of measurement is not performed when the channel sensing for the first time frequency resource block is used to determine that no first type of signaling is detected to indicate the first time frequency resource block.

As an example, the step in block F55 in fig. 5 exists; the result of the channel sensing for the second time-frequency resource block is used to determine that the second time-frequency resource block belongs to a candidate time-frequency resource pool in which the first node selects time-frequency resources used for transmission of the first signaling and the first signal.

As one example, the step in block F55 in fig. 5 is not present.

As one example, the steps in block F56 in FIG. 5 cannot exist without the steps in block F55.

As one example, when the step in block F56 in FIG. 5 exists, the step in block F55 also exists.

As one example, the steps in both blocks F55 and F56 in FIG. 5 exist.

As one embodiment, the method in a first node used for wireless communication includes: performing the second type of measurement when the channel awareness for the second time-frequency resource block is used to determine that third signaling is detected; wherein the third signaling is one of the first type of signaling; the third signaling indicates the second time-frequency resource block; the second type of measurement is used to determine a second measurement value used to determine that the second time-frequency resource block belongs to the candidate pool of time-frequency resources; the second measurement is lower than a second threshold, which is a real number.

As a sub-embodiment of the above embodiment, the first signaling indicates a first priority, and the third signaling indicates a fourth priority; the first priority and the fourth priority are used to determine the second threshold.

As a sub-embodiment of the above embodiment, the unit of the second threshold is Watt (Watt).

As a sub-embodiment of the above embodiment, the unit of the second threshold is dBm (millidecibels).

As a sub-embodiment of the above embodiment, the second threshold is a positive real number.

As an embodiment, the second type of measurement comprises a measurement for RSRP.

As an embodiment, the second type of measurement comprises a measurement of RSRP of a DMRS for the third signaling scheduled data channel.

As an example, the second measurement is in dBm (decibels).

As an example, the unit of the second measurement value is Watt (Watt).

As one embodiment, the second measurement value includes: and (4) RSRP.

As an embodiment, the third signaling indicates that the second time-frequency resource block is reserved.

As an embodiment, the third signaling indicates that the second time-frequency resource block is to be occupied by a node different from the first node.

As an example, the step in block F55 in fig. 5 exists, and the step in F56 does not exist.

As an embodiment, the second type of measurement is not performed when the channel sensing for the second time frequency resource block is used to determine that none of the first type of signaling is detected to indicate the second time frequency resource block.

As an example, the step in block F57 in fig. 5 exists when the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted; the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of blocks of bits, and the third signal indicates whether the first set of blocks of bits was received correctly.

As an embodiment, the monitoring refers to receiving based on energy detection, i.e. sensing (Sense) the energy of the wireless signal and averaging to obtain the received energy; if the received energy is larger than a third given threshold value, judging that the third signal is received; otherwise, judging that the third signal is not received.

As an embodiment, the monitoring refers to receiving based on coherent detection, that is, performing coherent receiving and measuring energy of a signal obtained after the coherent receiving; if the energy of the signal obtained after the coherent reception is greater than a fourth given threshold value, judging that the third signal is received; otherwise, judging that the third signal is not received.

As an embodiment, the monitoring refers to blind decoding, i.e. receiving a signal and performing a decoding operation; if the decoding is determined to be correct according to the CRC bit, judging that the third signal is received; otherwise, judging that the third signal is not received.

As one embodiment, the sentence monitoring the third signal comprises: the first node determines whether the third signal is transmitted according to coherent detection.

As one embodiment, the sentence monitoring the third signal comprises: the first node determines whether the third signal is transmitted according to CRC.

As an embodiment, when the first signaling indicates that the HARQ-ACK corresponding to the first signal is not transmitted, the first node abandons monitoring the third signal in the second empty resource sub-block.

As an embodiment, when the first signaling indicates that the HARQ-ACK corresponding to the first signal is not sent, the second node abandons sending the third signal in the second air interface resource sub-block.

As an embodiment, the third signal is transmitted on a sidelink physical layer feedback channel (i.e. a sidelink channel that can only be used to carry physical layer HARQ feedback).

As an embodiment, the third signal is transmitted over the PSFCH.

As an embodiment, the not step in block F57 in fig. 5 exists when the first signaling indicates that the HARQ-ACK corresponding to the first signal is not transmitted.

As an embodiment, the first signaling is transmitted on a sidelink physical layer control channel (i.e., a sidelink channel that can only be used to carry physical layer signaling).

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

As one example, the first signal is transmitted on a sidelink physical layer data channel (i.e., a sidelink channel that can be used to carry physical layer data).

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

Example 6

Embodiment 6 illustrates a schematic diagram of a given time-frequency resource block according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, the given time-frequency resource block is any one of the first time-frequency resource block, the second time-frequency resource block, the first set of time-frequency resource blocks, the second set of time-frequency resource blocks, or the candidate time-frequency resource pool.

As an embodiment, the given time-frequency resource block is the first time-frequency resource block.

As an embodiment, the given time-frequency resource block is the second time-frequency resource block.

As an embodiment, the given time-frequency resource block is any one of the first set of time-frequency resource blocks.

As an embodiment, the given time frequency resource block is any one of the second set of time frequency resource blocks.

As an embodiment, the given time frequency resource block is any one of the candidate time frequency resource pools.

As an embodiment, the given time-frequency Resource block comprises a positive integer number of REs (Resource Elemen).

As an embodiment, one RE occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier 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 OFDM) symbol.

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

As an embodiment, the given time-frequency Resource Block includes a positive integer number of PRBs (Physical Resource blocks) in the frequency domain.

As an embodiment, the given time-frequency resource block comprises a positive integer number of sub-channels (sub-channels) in the frequency domain.

As an embodiment, the given time-frequency resource block comprises a positive integer number of consecutive sub-channels in the frequency domain.

As an embodiment, the given time-frequency resource block comprises a positive integer number of discontinuous sub-channels in the frequency domain.

As an embodiment, one of said sub-channels comprises a positive integer number of sub-carriers.

As an embodiment, one of said sub-channels comprises a positive integer number of consecutive sub-carriers.

As an embodiment, one of said sub-channels comprises a positive integer number of PRBs.

As an embodiment, one of said sub-channels comprises a positive integer number of consecutive PRBs.

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

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

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

As an embodiment, the given time-frequency resource block comprises a positive integer number of sub-frames (sub-frames) in the time domain.

Example 7

Embodiment 7 illustrates a schematic diagram of resource mapping of a given air interface resource block in a time-frequency domain according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the given resource block of air interfaces is any one of the first resource block of air interfaces and the second resource block of air interfaces.

As an embodiment, the given resource block is the first resource block.

As an embodiment, the given resource block is the second resource block.

As an embodiment, the given resource block of air interface includes a time domain resource and a frequency domain resource.

As an embodiment, the given air interface resource block includes a time domain resource, a frequency domain resource and a code domain resource.

As an embodiment, the Code domain resource includes one or more of a pseudo-random (pseudo-random) sequence, a Zadoff-Chu sequence, a low-PAPR (Peak-to-Average Power Ratio) sequence, a cyclic shift amount (cyclic shift), an OCC (Orthogonal Cover Code), an Orthogonal sequence (Orthogonal sequence), a frequency domain Orthogonal sequence or a time domain Orthogonal sequence.

As an embodiment, the given air interface resource block includes a positive integer number of REs in a time-frequency domain.

As an embodiment, the given air interface resource block includes a positive integer number of subcarriers in a frequency domain.

As an embodiment, the given air interface resource block includes a positive integer number of PRBs in a frequency domain.

As an embodiment, the given air interface resource block includes 1 PRB in the frequency domain.

As an embodiment, the given air interface resource block includes 2 consecutive PRBs in the frequency domain.

As an embodiment, the given air interface resource block includes 4 consecutive PRBs in the frequency domain.

As an embodiment, the given air interface resource block includes a positive integer number of sub-channels (sub-channels) in a frequency domain.

As an embodiment, the given air interface resource block includes a positive integer number of multicarrier symbols in a time domain.

As an embodiment, the given air interface resource block includes 1 multicarrier symbol in the time domain.

As an embodiment, the given air interface resource block includes 2 consecutive multicarrier symbols in a time domain.

As an embodiment, the given air interface resource block includes a positive integer number of slots (slots) in a time domain.

As an embodiment, the given air interface resource block includes a positive integer number of subframes (sub-frames) in the time domain.

As an embodiment, the given air interface resource block includes one PSFCH resource (resource).

As an embodiment, the given air interface resource block includes a plurality of PSFCH resources.

As an embodiment, the given air interface resource block is reserved for transmission of the PSFCH.

As an embodiment, the given air interface resource block is reserved for transmission of HARQ-ACK of the secondary link.

As an embodiment, the given resource block of air interfaces is reserved for transmission of HARQ-ACK for V2X.

As an embodiment, the first resource block of the null port is reserved for HARQ-ACKs of the pschs transmitted in the first resource block of time and frequency.

As an embodiment, the first resource block of null may be used for transmitting HARQ-ACK of the pschs transmitted in the first resource block of time and frequency.

As an embodiment, the second resource block of null ports is reserved for HARQ-ACKs of the pschs transmitted in the second time-frequency resource block.

As an embodiment, the second resource block of null may be used for transmitting HARQ-ACK of the pschs transmitted in the second time-frequency resource block.

As an embodiment, the first and second air interface resource blocks are respectively reserved for the first type of channels.

As an embodiment, the first and second air interface resource blocks are respectively reserved for transmission of the first type of channel.

As an embodiment, the first empty resource block cannot be used for transmitting channels other than the first type of channel.

As an embodiment, the second air interface resource block cannot be used for transmitting channels other than the first type of channel.

Example 8

Embodiment 8 illustrates a schematic diagram in which a given time-frequency resource block is used to determine a given air interface resource block according to an embodiment of the present application; as shown in fig. 8. In embodiment 8, the given time-frequency resource block and the given air interface resource block are the first time-frequency resource block and the first air interface resource block, respectively; or the given time frequency resource block and the given air interface resource block are the second time frequency resource block and the second air interface resource block respectively.

As an embodiment, the given time-frequency resource block is the first time-frequency resource block, and the given air interface resource block is the first air interface resource block.

As an embodiment, the given time-frequency resource block is the second time-frequency resource block, and the given air interface resource block is the second air interface resource block.

As an embodiment, the given time-frequency resource block and the given air interface resource block are orthogonal in a time domain.

As an embodiment, the given air interface resource block and the given time-frequency resource block belong to mutually orthogonal time units in a time domain.

As an embodiment, the starting time of the given air interface resource block is later than the ending time of the given time-frequency resource block.

As an embodiment, the time domain resources occupied by the given time-frequency resource block are used to determine the time domain resources occupied by the given air interface resource block.

As an embodiment, the frequency domain resources occupied by the given time-frequency resource block are used to determine the frequency domain resources occupied by the given air interface resource block.

As an embodiment, the frequency domain resources occupied by the given time-frequency resource block are used to determine the frequency domain resources and the code domain resources occupied by the given air interface resource block.

As an embodiment, the time-frequency resources occupied by the given time-frequency resource block are used to determine the frequency-domain resources occupied by the given air-interface resource block.

As an embodiment, the time-frequency resources occupied by the given time-frequency resource block are used to determine the frequency domain resources and the code domain resources occupied by the given air interface resource block.

As an embodiment, the given air interface resource block is reserved for the first type of channel corresponding to the psch transmitted in the given time-frequency resource block.

As an embodiment, the given air interface resource block may be used to transmit the first type of channel corresponding to the PSSCH transmitted in the given time frequency resource block.

As an embodiment, the given air interface resource block may only be used to transmit the first type of channel corresponding to the psch transmitted in the given time-frequency resource block.

Example 9

Embodiment 9 illustrates a schematic diagram in which a given time-frequency resource block is used to determine a given air interface resource block according to an embodiment of the present application; as shown in fig. 9. In embodiment 9, the given time-frequency resource block and the given air interface resource block are the first time-frequency resource block and the first air interface resource block, respectively; or the given time frequency resource block and the given air interface resource block are the second time frequency resource block and the second air interface resource block respectively. The given time frequency resource block belongs to a first time unit in a time domain, and a first sub-channel is a sub-channel (sub-channel) occupied by the given time frequency resource block in a frequency domain; the pair (the first time unit, the first subchannel) is used to determine the given resource block of air interface.

As an embodiment, the first subchannel is the lowest subchannel occupied by the given time-frequency resource block.

As an embodiment, the first subchannel is the highest subchannel occupied by the given time-frequency resource block.

As an embodiment, the first sub-channel is a starting sub-channel occupied by the given time-frequency resource block.

As an embodiment, the first subchannel is a lowest subchannel occupied by the first signal.

As an embodiment, the first subchannel is the highest subchannel occupied by the first signal.

As an embodiment, the first sub-channel is a lowest sub-channel occupied by the first signaling.

As an embodiment, the first sub-channel is a highest sub-channel occupied by the first signaling.

As one embodiment, the pair (the first time unit, the first subchannel) is one of P1 candidate pairs, P1 is a positive integer greater than 1, any of the P1 candidate pairs includes one time unit and one subchannel; the given air interface resource block is one candidate air interface resource block in P2 candidate air interface resource blocks, and P2 is a positive integer greater than 1; any one of the P1 candidate pairs corresponds to one of the P2 candidate air interface resource blocks; the given resource block of air interface is a candidate resource block of air interface corresponding to the pair (the first time unit, the first subchannel) in the P2 candidate resource blocks of air interface.

As a sub-embodiment of the foregoing embodiment, any candidate air interface resource block of the P2 candidate air interface resource blocks includes one or more PSFCH resources.

As a sub-embodiment of the foregoing embodiment, the P2 candidate air interface resource blocks are respectively reserved for HARQ-ACK of a secondary link.

As a sub-embodiment of the foregoing embodiment, the correspondence between the P1 candidate pairs and the P2 candidate air interface resource blocks is preconfigured.

As a sub-embodiment of the foregoing embodiment, the correspondence between the P1 candidate pairs and the P2 candidate air interface resource blocks is configured by RRC signaling.

Example 10

Embodiment 10 illustrates a diagram for determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 10. In embodiment 10, the first signaling indicates a first communication node; the channel awareness for the first block of time frequency resources is used to determine that detection of a given first type of signaling indicates the first block of time frequency resources, the given first type of signaling indicating a third communication node; the first and third communication nodes are used to determine whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the given first type of signaling indicates that the first time-frequency resource block is reserved or occupied.

As one embodiment, the first signaling indicates that the first communication node is the intended recipient of the first signal.

As an embodiment, the first signaling indicates a layer 1(L1) ID (IDentity) of the first communication node.

As an embodiment, the given first type of signaling indicates that the third communication node is the target recipient of the data channel scheduled by the given first type of signaling.

As an embodiment, the given first type of signaling indicates that the third communication node is the sender of the given first type of signaling.

As an embodiment, the given first type of signaling indicates a layer 1(L1) ID of the third communication node.

As an embodiment, the HARQ-ACK for the first signal is not transmitted when the channel awareness for the first block of time-frequency resources is used to determine that the given first type of signaling is detected and the first and third communication nodes are the same node.

As an embodiment, the HARQ-ACK corresponding to the first signal is transmitted when the channel awareness for the first block of time-frequency resources is used to determine that the given first type of signaling is detected and that the first and third communication nodes are different nodes.

Example 11

Embodiment 11 illustrates an exemplary diagram of determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 11. In embodiment 11, the first signaling indicates a first priority; the channel awareness for the first block of time-frequency resources is used to determine that detection of a given first type of signaling indicating the first block of time-frequency resources indicates a third priority; the first priority and the third priority are used to determine whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the first priority is one of Q priorities, Q being a positive integer greater than 1.

As an embodiment, the third priority is one of the Q priorities

As an example, each V2X message corresponds to one of the Q priorities.

As an embodiment, any one of the Q priorities implicitly indicates one or more of latency requirement, traffic type, reliability requirement, or maximum communication distance of the corresponding V2X message.

As an embodiment, any one of the Q priorities includes one or more of PPPP (ProSe (proximity services) Per-Packet Priority, proximity service Per-Packet Priority), PPPR (ProSe Per-Packet Reliability, proximity service Per-Packet Reliability), 5QI (5G QoS Indicator, fifth generation quality of service indication), or PQI (PC5QoS Indicator, PC5 quality of service indication).

As one embodiment, the first priority is a non-negative integer.

As an embodiment, the third priority is a non-negative integer.

As an embodiment, the HARQ-ACK for the first signal is transmitted when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and the first priority is higher than the third priority.

As an embodiment, the HARQ-ACK for the first signal is not transmitted when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and the first priority is not higher than the third priority.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and the first priority is not higher than the third priority, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first and third communication nodes in embodiment 10.

As a sub-embodiment of the foregoing embodiment, when the first communication node and the third communication node are the same node, the HARQ-ACK corresponding to the first signal is not transmitted; the HARQ-ACK corresponding to the first signal is transmitted when the first communication node and the third communication node are different nodes.

Example 12

Embodiment 12 illustrates an exemplary diagram of determining whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the channel awareness for the first block of time-frequency resources is used to determine that detection of a given first type of signaling indicating the first block of time-frequency resources, the given first type of signaling scheduling a given data channel, whether a HARQ-ACK corresponding to the given data channel is transmitted is used to determine whether the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the given first type of signaling indicates whether HARQ-ACK corresponding to the given data channel is transmitted.

As an embodiment, the HARQ-ACK for the first signal is transmitted when the channel sensing for the first time-frequency resource block is used to determine that the given first type of signaling is detected and the HARQ-ACK for the given data channel is not transmitted.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and a HARQ-ACK corresponding to the given data channel is transmitted, the HARQ-ACK corresponding to the first signal is not transmitted.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and a HARQ-ACK corresponding to the given data channel is transmitted, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first and third communication nodes in embodiment 10.

As a sub-embodiment of the above-mentioned embodiment, when the first communication node and the third communication node are the same node; the HARQ-ACK corresponding to the first signal is not sent; the HARQ-ACK corresponding to the first signal is transmitted when the first communication node and the third communication node are different nodes.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that the given first type of signaling is detected and a HARQ-ACK corresponding to the given data channel is transmitted, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first priority and the third priority in embodiment 11.

As a sub-embodiment of the above embodiment, when the first priority is higher than the third priority; the HARQ-ACK corresponding to the first signal is sent; when the first priority is not higher than the third priority, the HARQ-ACK corresponding to the first signal is not transmitted.

Example 13

Embodiment 13 illustrates a schematic diagram of second signaling according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, the channel sensing for the first block of time and frequency resources is used to determine that the second signalling is detected; said second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block.

As an embodiment, the second signaling is dynamic signaling.

As an embodiment, the second signaling is layer 1(L1) control signaling.

For one embodiment, the second signaling includes SCI.

As an embodiment, the second signaling explicitly indicates the first time-frequency resource block.

As an embodiment, the second signaling implicitly indicates the first block of time-frequency resources.

As an embodiment, the second signaling indicates that the first time-frequency resource block is reserved.

As an embodiment, the second signaling explicitly indicates that the first time-frequency resource block is reserved.

As an embodiment, the second signaling implicitly indicates that the first time-frequency resource block is reserved.

As an embodiment, the second signaling indicates that the first time-frequency resource block is occupied.

As an embodiment, the second signaling explicitly indicates that the first time-frequency resource block is occupied.

As an embodiment, the second signaling implicitly indicates that the first time-frequency resource block is occupied.

As an embodiment, the second signaling indicates that the first time-frequency resource block is to be occupied.

As an embodiment, the second signaling indicates that the first block of time-frequency resources is to be used by a sender of the second signaling for transmitting wireless signals.

As an embodiment, the first type of signaling is dynamic signaling.

As an embodiment, the first type of signaling is layer 1(L1) signaling.

As an embodiment, the first type of signaling is layer 1(L1) control signaling.

For one embodiment, the first type of signaling includes SCI.

As an embodiment, the first type of signaling comprises one or more fields (fields) in one SCI.

As one embodiment, the first type of signaling includes DCI.

As an embodiment, the first signaling is one of the first type of signaling.

Example 14

Embodiment 14 illustrates a relationship between a first measurement value and whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 14. In embodiment 14, the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected; the first type of measurement is used to determine the first measurement value used to determine whether the HARQ-ACK for the first signal is transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that the second signaling is detected, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first measurement value.

As an embodiment, the first type of measurement comprises a measurement for RSRP (Reference Signal Received Power).

As an embodiment, the first type of measurement includes a measurement for RSRQ (Reference Signal Received Quality).

As an embodiment, the first type of measurement comprises a measurement for RSSI (Received Signal Strength Indicator).

As an embodiment, the first type of measurements comprises measurements for DMRS.

As an embodiment, the first type of measurement comprises a measurement of DMRS for PSSCH.

As an embodiment, the first type of measurement comprises a measurement of RSRP of the DMRS for the psch.

As an embodiment, the first type of measurements comprises measurements of DMRS for PSCCH.

As an embodiment, the first type of measurement comprises a measurement of RSRP for a DMRS of a PSCCH.

As an example, the first measurement is in dBm (decibels).

As one example, the unit of the first measurement value is watts (Watt).

As an embodiment, the first measurement value comprises: and (4) RSRP.

As one embodiment, the first measurement value includes: and RSRQ.

As one embodiment, the first measurement value includes: the RSSI.

As one embodiment, the first measurement value includes: CQI (Channel Quality Indicator).

As one embodiment, the first measurement value includes: RSRP of PSSCH.

As one embodiment, the first measurement value includes: RSRP of DMRS of PSSCH.

As one embodiment, the first measurement value includes: RSRP of PSCCH.

As one embodiment, the first measurement value includes: RSRP of DMRS of PSCCH.

As one embodiment, the first measurement value includes: an RSRP of the second signaling.

As one embodiment, the first measurement value includes: RSRP of the DMRS of the second signaling.

As an embodiment, when the channel awareness for the first time-frequency resource block is used to determine that the second signaling is detected and the first measurement value is greater than a first threshold, the first signaling indicates that HARQ-ACK corresponding to the first signal is not transmitted.

As one embodiment, the first signaling indicates that HARQ-ACK corresponding to the first signal is transmitted when the channel sensing for the first time-frequency resource block is used to determine that the second signaling is detected and the first measurement value is not greater than the first threshold.

As an embodiment, the first signaling indicates a first priority, the second signaling indicates a second priority; the first priority and the second priority are used to determine the first threshold; the first priority and the second priority are each one of the Q priorities in embodiment 11.

As one embodiment, the unit of the first threshold is Watt (Watt).

As an example, the first threshold value has a unit of dBm (decibels).

As an embodiment, the first threshold is a real number.

As an embodiment, the first threshold is a positive real number.

Example 15

Embodiment 15 illustrates an exemplary diagram where a first measurement value is used to determine whether a HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 15. In embodiment 15, the channel awareness for the first block of time and frequency resources is used to determine that the second signaling is detected; the first signaling indicates a first communication node; the second signaling indicates a second communication node; the first measurement, the first communication node and the second communication node together being used to determine whether the HARQ-ACK corresponding to the first signal was transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that the second signaling is detected, the first and second communication nodes are the same node, and the first measurement value is greater than the first threshold, the HARQ-ACK corresponding to the first signal is not transmitted.

As an embodiment, the HARQ-ACK corresponding to the first signal is transmitted when the channel awareness for the first block of time-frequency resources is used to determine that the second signaling is detected, the first and second communication nodes are the same node, and the first measurement value is not greater than the first threshold value.

As one embodiment, the HARQ-ACK corresponding to the first signal is transmitted when the channel awareness for the first block of time-frequency resources is used to determine that the second signaling is detected and the first and second communication nodes are different nodes.

As an embodiment, the first signaling indicates a layer 1(L1) ID of the first communication node.

As an embodiment, the second signaling indicates that the second communication node is a target recipient of the data channel scheduled by the second signaling.

As an embodiment, the second signaling indicates that the second communication node is the sender of the second signaling.

As one embodiment, the second signaling indicates a layer 1(L1) ID of the second communication node.

Example 16

Embodiment 16 illustrates a relationship between whether HARQ-ACKs corresponding to a second signal and a first signal are transmitted according to an embodiment of the present application; as shown in fig. 16. In embodiment 16, the second signaling includes scheduling information of the second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to the second signal.

As an embodiment, the second signal is a wireless signal.

As an embodiment, the second signal is a baseband signal.

As an embodiment, the second signal is transmitted on a SideLink (SideLink).

As an example, the second signal is transmitted through a PC5 interface.

As an embodiment, the second signal is transmitted on a psch.

As an embodiment, the transmission type (cast type) of the second signal is one of unicast, multicast or broadcast.

As an embodiment, whether the HARQ-ACK corresponding to the first signal is transmitted in relation to the second signal in the sentence includes: measurements for the second signal are used to determine the first measurement value.

As one embodiment, the first measurement value comprises an RSRP of the second signal.

As an embodiment, the first measurement value comprises an RSRP of a DMRS of the second signal.

As one embodiment, the first measurement value comprises RSSI of the second signal.

As an embodiment, the first type of measurement comprises a measurement of a DMRS for the second signal.

As an embodiment, whether the HARQ-ACK corresponding to the first signal is transmitted in relation to the second signal in the sentence includes: whether the HARQ-ACK corresponding to the first signal is transmitted is related to a cast type (cast type) of the second signal.

As one embodiment, the HARQ-ACK for the first signal is not transmitted when the channel awareness for the first block of time-frequency resources is used to determine that the second signaling is detected and the transmission type of the second signal is unicast or multicast.

As one embodiment, the HARQ-ACK for the first signal is sent when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected and the transmission type of the second signal is broadcast.

Example 17

Embodiment 17 illustrates a relationship between whether HARQ-ACK corresponding to a second signal is transmitted and whether HARQ-ACK corresponding to a first signal is transmitted according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, whether the HARQ-ACK corresponding to the first signal is transmitted is related to whether the HARQ-ACK corresponding to the second signal is transmitted.

As an embodiment, whether the HARQ-ACK corresponding to the first signal is transmitted in relation to the second signal in the sentence includes: whether the HARQ-ACK corresponding to the first signal is transmitted is related to whether the HARQ-ACK corresponding to the second signal is transmitted.

As an embodiment, the second signaling indicates whether HARQ-ACK corresponding to the second signal is transmitted.

As one embodiment, the transmission type of the second signal is used to determine whether a HARQ-ACK corresponding to the second signal is transmitted.

As an embodiment, the HARQ-ACK corresponding to the first signal is transmitted when the channel sensing for the first time-frequency resource block is used to determine that the second signaling is detected and the HARQ-ACK corresponding to the second signal is not transmitted.

As an embodiment, when the channel sensing for the first time-frequency resource block is used to determine that the second signaling is detected and a HARQ-ACK corresponding to the second signal is transmitted, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first measurement.

As a sub-embodiment of the foregoing embodiment, when the first measurement value is greater than the first threshold, the HARQ-ACK corresponding to the first signal is not transmitted; when the first measurement value is not larger than the first threshold value, the HARQ-ACK corresponding to the first signal is sent.

As an embodiment, when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected and a HARQ-ACK corresponding to the second signal is transmitted, whether the HARQ-ACK corresponding to the first signal is transmitted is related to the first communication node, the second communication node and the first measurement value in embodiment 14.

As a sub-embodiment of the foregoing embodiment, when the first communication node and the second communication node are the same node and the first measurement value is greater than the first threshold, the HARQ-ACK corresponding to the first signal is not transmitted; when the first communication node and the second communication node are the same node and the first measurement value is not greater than the first threshold value, the HARQ-ACK corresponding to the first signal is transmitted.

Example 18

Embodiment 18 illustrates a schematic diagram of a third signal according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, the third signal is sent over the second air interface resource sub-block; the first signal carries the first set of bit blocks, and the third signal indicates whether the first set of bit blocks was received correctly.

As an embodiment, the second sub-block of air interface resources comprises time domain resources and frequency domain resources.

As an embodiment, the second sub-block of air interface resources includes time domain resources, frequency domain resources and code domain resources.

For one embodiment, the second empty resource sub-block includes one PSFCH resource.

As an embodiment, the second resource block of air ports is composed of the second sub-block of air ports resources.

As an embodiment, the second air interface resource block includes a plurality of air interface resource sub-blocks, the second air interface resource sub-block is one of the plurality of air interface resource sub-blocks, and any one of the plurality of air interface resource sub-blocks includes one PSFCH resource.

As an embodiment, any two air interface resource sub-blocks in the second air interface resource block occupy the same time domain resource.

As an embodiment, any two air interface resource sub-blocks in the second air interface resource block occupy the same time-frequency resource and different code domain resources.

As an embodiment, two air interface resource sub-blocks exist in the second air interface resource block and occupy mutually orthogonal frequency domain resources.

In an embodiment, a source (source) ID of the first signal is used to determine the second air interface resource sub-block from the second air interface resource block.

As an embodiment, the ID of the sender of the third signal is used to determine the second air interface resource sub-block from the second air interface resource block.

As an embodiment, the target recipient of the first signal is a first set of nodes comprising a positive integer number of nodes, the first set of nodes comprising senders of the third signals; an index of a sender of the third signal in the first set of nodes is used to determine the second sub-block of air interface resources from the second resource block of air interface.

As an embodiment, whether the first bit block set is correctly received is used to determine the second air interface resource sub-block from the second air interface resource block.

As one embodiment, the first set of bit blocks includes a positive integer number of bit blocks, and any bit block included in the first set of bit blocks includes a positive integer number of binary bits.

As an embodiment, the first set of bit blocks comprises only one bit block.

As one embodiment, the first set of bit blocks includes a plurality of bit blocks.

As an embodiment, any one bit Block in the first bit Block set is a Transport Block (TB).

As an embodiment, any one bit Block in the first bit Block set is a CB (Code Block).

As an embodiment, any one bit Block in the first bit Block set is a CBG (Code Block Group).

As an embodiment, any one bit block in the first set of bit blocks is a TB or a CBG.

As an embodiment, the sentence said first signal carries a first set of bit blocks comprises: the first signal includes an output of all or a part of bits in the first bit block set after being sequentially subjected to CRC (Cyclic Redundancy Check) Attachment (Attachment), Channel Coding (Channel Coding), Rate Matching (Rate Matching), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), conversion precoder (transform precoder), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), multi-carrier symbol Generation (Generation), Modulation and Upconversion (Modulation and Upconversion).

As an embodiment, said sentence, said first signal carrying a first set of bit blocks comprises: the first signal comprises the output of all or part of bits in the first bit block set after CRC attachment, channel coding, rate matching, modulation mapper, layer mapper, precoding, resource element mapper, multi-carrier symbol generation, modulation and up-conversion in sequence.

As an embodiment, said sentence, said first signal carrying a first set of bit blocks comprises: all or a portion of the bits in the first set of bit blocks are used to generate the first signal.

As an embodiment, the third signal is a wireless signal.

As an embodiment, the third signal is a baseband signal.

As an embodiment, the third signal is transmitted on a SideLink (SideLink).

As an example, the third signal is transmitted through the PC5 interface.

As an embodiment, the third signal is transmitted by Unicast (Unicast).

As an embodiment, the third signal is multicast (Groupcast) transmitted.

As an example, the third signal is broadcast (borradcast) transmitted.

As an embodiment, the third signal indicates whether each block of bits in the first set of blocks of bits was received correctly.

As an embodiment, the third signal indicates that all bit blocks in the first set of bit blocks are received correctly or that at least one bit block in the first set of bit blocks is not received correctly.

As an embodiment, the third signal indicates whether each block of bits in the first set of blocks of bits, respectively, was received correctly.

As an embodiment, the third signal carries the HARQ-ACK corresponding to the first signal.

As an embodiment, the third signal carries an ACK.

As an embodiment, the third signal carries a NACK.

Example 19

Embodiment 19 illustrates a schematic diagram of channel sensing for a second time-frequency resource block according to an embodiment of the present application; as shown in fig. 19. In embodiment 19, the result of the channel sensing for the second set of time-frequency resource blocks performed in the second set of time-frequency resource blocks is used to determine that the second time-frequency resource block belongs to the candidate pool of time-frequency resources.

In one embodiment, the second set of time-frequency resource blocks does not include the second time-frequency resource block.

As an embodiment, the ending time of the second set of time-frequency resource blocks is not later than the starting time of the second time-frequency resource blocks.

For an embodiment, the second set of time frequency resource blocks includes a positive integer number of time frequency resource blocks.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether the second time frequency resource block is reserved or not.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether the second time-frequency resource block is reserved by a node different from the first node.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether the second time-frequency resource block is occupied by a node different from the first node.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether the first node can occupy the second time frequency resource block.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether a first type of signaling is detected to be used for reserving the second time-frequency resource block by a node different from the first node.

As an embodiment, the channel sensing for the second time-frequency resource block comprises: and judging whether a first type of signaling is detected to indicate that the second time frequency resource block is occupied by a node different from the first node.

As an embodiment, the first node selects the second time-frequency resource block in the candidate time-frequency resource pool to be used for transmitting the first signaling and the first signal.

As an embodiment, the first node selects the second time-frequency resource block to be used for transmitting the first signaling and the first signal in the candidate time-frequency resource pool by itself.

As an embodiment, a higher layer (higher layer) of the first node selects the second time frequency resource block in the pool of candidate time frequency resources to be used for transmitting the first signaling and the first signal.

As an embodiment, the RSSI corresponding to different time frequency resource blocks in the candidate time frequency resource pool is used by the first node to select the second time frequency resource block to be used for transmitting the first signaling and the first signal.

As an embodiment, the physical layer of the first node determines the candidate time-frequency resource pool and reports the candidate time-frequency resource pool to a higher layer (higher layer) of the first node.

For one embodiment, the candidate time-frequency resource pool includes a positive integer number of REs.

For one embodiment, the candidate time-frequency resource pool includes a positive integer number of subcarriers in the frequency domain.

For an embodiment, the candidate time-frequency resource pool comprises a positive integer number of PRBs in the frequency domain.

As an embodiment, the candidate time-frequency resource pool includes a positive integer number of sub-channels (sub-channels) in the frequency domain.

As an embodiment, the candidate time-frequency resource pool comprises a positive integer number of consecutive sub-channels in the frequency domain.

As an embodiment, the candidate time-frequency resource pool includes a positive integer number of discontinuous sub-channels in the frequency domain.

As an embodiment, the candidate time-frequency resource pool comprises a positive integer number of multicarrier symbols in the time domain.

For one embodiment, the candidate time-frequency resource pool includes a positive integer number of slots (slots) in a time domain.

As an embodiment, the candidate time-frequency resource pool includes a positive integer number of consecutive slots (slots) in the time domain.

As an embodiment, the candidate time-frequency resource pool includes a positive integer number of discontinuous slots (slots) in the time domain.

As one embodiment, the candidate pool of time-frequency resources includes a positive integer number of subframes (sub-frames) in the time domain.

For an embodiment, the candidate time-frequency resource pool includes a positive integer number of time-frequency resource blocks.

As an embodiment, the determining that the second time-frequency resource block belongs to the candidate time-frequency resource pool comprises: the result of the channel perception for the second time-frequency resource block is used to determine that the second time-frequency resource block is not reserved by a node other than the first node.

As an embodiment, the determining that the second time-frequency resource block belongs to the candidate time-frequency resource pool comprises: the result of the channel perception for the second time-frequency resource block is used to determine that the second time-frequency resource block may be occupied by the first node.

Example 20

Embodiment 20 illustrates a schematic diagram of a first set of time units and a target time unit according to an embodiment of the application; as shown in fig. 20. In embodiment 20, the first time-frequency resource block and the second time-frequency resource block belong to time units in the first time unit set, respectively; the first air interface resource block and the second air interface resource block both belong to the target time unit; any time unit in the first set of time units is associated with the target time unit.

As an embodiment one of said time units is a continuous time period.

As an embodiment, one of said time units comprises a positive integer number of consecutive multicarrier symbols.

As an embodiment, one of the time units is a slot (slot).

As an embodiment, one said time unit is one sub-frame.

As an embodiment, one of the time units is a sub-slot.

As an embodiment, one of the time units is a mini-slot.

As an embodiment, said first set of time units comprises only 1 of said time units.

As one embodiment, the first set of time units includes a plurality of the time units.

As one embodiment, the first set of time units consists of a positive integer number of the time units.

As an embodiment, the number of time units comprised by the first set of time units is configured by higher layer signaling.

As an embodiment, the first set of time units comprises a number of time units configured by the first information block.

As an embodiment, any two time units in the first set of time units are orthogonal to each other.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block belong to different time units in the first time unit set in time domain respectively.

As one embodiment, the first set of time units and the target time unit are orthogonal to each other in the time domain.

As an embodiment, the start time of the target time unit is no earlier than the end time of the first set of time units.

As an embodiment, the first air interface resource block and the second air interface resource block respectively occupy part of time domain resources in the target time unit in a time domain.

As an embodiment, the first air interface resource block and the second air interface resource block respectively occupy the latest positive integer number of multicarrier symbols in the target time unit in the time domain.

As one embodiment, associating any time unit in the first set of time units in the sentence with the target time unit comprises: the HARQ-ACK corresponding to the PSSCH transmitted in any time unit in the first time unit set cannot be transmitted in time domain resources other than the target time unit.

As one embodiment, associating any time unit in the first set of time units of the sentence with the target time unit comprises: HARQ-ACK corresponding to PSSCH transmitted in any time unit in the first set of time units is transmitted in the target time unit.

Example 21

Embodiment 21 illustrates a schematic diagram of a first information block according to an embodiment of the present application; as shown in fig. 21. In embodiment 21, the first information block is used to determine the first time unit pool.

As an embodiment, the first information block is carried by higher layer (higher layer) signaling.

As an embodiment, the first information block is carried by RRC signaling.

As an embodiment, the first information block is carried by MAC CE signaling.

As an embodiment, the first information block is transmitted on a SideLink (SideLink).

As an embodiment, the first information block is transferred via a PC5 interface.

As an embodiment, the first information block is transmitted on a downlink.

As an embodiment, the first information block is transmitted over a Uu interface.

As an embodiment, the first information block includes information in all or part of a Field (Field) in one IE.

As one embodiment, the first information block includes information in one or more fields (fields) in the MIB.

As one embodiment, the first information block includes information in one or more fields (fields) in a SIB.

For one embodiment, the first information block includes information in one or more fields (fields) in the RMSI.

As an embodiment, the first information block is transmitted by a wireless signal.

As one embodiment, the first information block is transmitted from a serving cell of the first node to the first node.

As an embodiment, the first information block is passed from a higher layer of the first node to a physical layer of the first node.

As one embodiment, the first information block indicates the first time unit pool.

As one embodiment, the first information block explicitly indicates the first time unit pool.

As one embodiment, the first information block implicitly indicates the first time unit pool.

Example 22

Embodiment 22 illustrates a schematic diagram of a first time cell pool according to one embodiment of the present application; as shown in fig. 22. In embodiment 22, any time unit in the first pool of time units comprises time domain resources that may be used for transmission of the first type of channel; the target time unit is one time unit in the first pool of time units.

As an embodiment, a part of time domain resources in any time unit in the first time unit pool may be used for transmitting the first type of channel.

As an embodiment, the latest positive integer number of multicarrier symbols in any time unit in the first pool of time units may be used for transmitting the first type of channel.

As an embodiment, the latest positive integer number of multicarrier symbols in any time unit in the first pool of time units is reserved for the first type of channel.

As an embodiment, the latest positive integer number of multicarrier symbols in any time unit in the first time unit pool can only be used for transmitting the first type of channel.

As an embodiment, the first type of channel cannot be transmitted in a time domain resource outside the first time unit pool.

As one embodiment, the first information block indicates a first interval; associating any time unit in the first set of time units of the sentence with the target time unit comprises: for any given time unit in the first set of time units, the target time unit is the earliest one of the first pool of time units with a starting time no earlier than an ending time of the given time unit and a time interval with the given time unit no less than the first interval; the first interval is a non-negative integer.

As a sub-embodiment of the above embodiment, the first interval is configured for higher layer signaling.

As a sub-embodiment of the above embodiment, the first interval is a positive integer.

As a sub-embodiment of the above embodiment, the unit of the first interval is a slot (slot).

As a sub-embodiment of the above embodiment, the unit of the first interval is the time unit.

As a sub-embodiment of the above embodiment, the unit of the first interval is a positive integer number of multicarrier symbols.

As an example, the time interval between two time units refers to: a time interval between the end time of the time unit with the earlier start time and the start time of the time unit with the later start time.

As an example, the time interval between two time units refers to: the time interval between the end times of the two time units.

As an example, the time interval between two time units refers to: the time interval between the start moments of the two time units.

As an embodiment, the first information block indicates a first pool of time-frequency resources; the first time frequency resource block and the second time frequency resource block belong to the first time frequency resource pool respectively.

As a sub-embodiment of the above embodiment, the first pool of time-frequency resources is reserved for a sidelink.

As a sub-embodiment of the foregoing embodiment, the first information block indicates the first time unit pool from time domain resources occupied by the first time-frequency resource pool.

As a sub-embodiment of the foregoing embodiment, associating any time unit in the first time unit set of the sentence with the target time unit comprises: HARQ-ACK corresponding to PSSCH transmitted in any time unit in the first time unit set in the first time-frequency resource pool cannot be transmitted in time-domain resources outside the target time unit.

As a sub-embodiment of the foregoing embodiment, in the first time-frequency resource pool, the first type of channel cannot be transmitted in a time-domain resource outside the first time-unit pool.

Example 23

Embodiment 23 illustrates a block diagram of a processing apparatus for use in a first node device according to an embodiment of the present application; as shown in fig. 23. In fig. 23, a processing device 2300 in a first node apparatus includes a first processor 2301 and a first transmitter 2302.

In embodiment 23, the first processor 2301 performs channel sensing for a first set of time-frequency resource blocks in the first set of time-frequency resource blocks; the first transmitter 2302 transmits the first signaling and the first signal in a second time-frequency resource block.

In embodiment 23, the first signaling includes scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, and whether the HARQ-ACK corresponding to the first signal is transmitted is related to the result of the channel perception for the first time-frequency resource block.

As an embodiment, the first processor 2301 performs a first type of measurement when the channel sensing for the first time-frequency resource block is used to determine that second signaling is detected; wherein the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; the first type of measurement is used to determine a first measurement value to which the HARQ-ACK corresponding to the first signal is transmitted.

As an embodiment, the second signaling includes scheduling information of a second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to the second signal.

As an embodiment, when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent, the first processor 2301 monitors a third signal in a second air interface resource sub-block; the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of blocks of bits, and the third signal indicates whether the first set of blocks of bits was received correctly.

For one embodiment, the first processor 2301 performs channel sensing for a second set of time-frequency resource blocks in the second set of time-frequency resource blocks; wherein the result of the channel sensing for the second time frequency resource block is used to determine that the second time frequency resource block belongs to a candidate time frequency resource pool in which the first node selects time frequency resources used for transmission of the first signaling and the first signal.

As an embodiment, the first time-frequency resource block and the second time-frequency resource block belong to time units in a first time unit set respectively in a time domain, and the first time unit set includes a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

For one embodiment, the first processor 2301 receives a first information block; wherein the first information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources that can be used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

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

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

For one embodiment, the first processor 2301 includes at least one of the { antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} of embodiment 4.

For one embodiment, the first transmitter 2302 includes at least one of the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the memory 460, and the data source 467 of embodiment 4.

Example 24

Embodiment 24 illustrates a block diagram of a processing apparatus for use in a second node device according to an embodiment of the present application; as shown in fig. 24. In fig. 24, a processing apparatus 2400 in the second node device includes a second processor 2401.

In embodiment 24, the second processor 2401 receives the first signaling and the first signal in the second time-frequency resource block.

In embodiment 24, the first signaling comprises scheduling information of the first signal; a first time-frequency resource block is used for determining a first air interface resource block, a second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block can be respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal being transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block.

As an embodiment, the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; a first type of measurement is performed when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected; the first type of measurement is used to determine a first measurement value to which the HARQ-ACK to which the first signal corresponds is transmitted.

In an embodiment, when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent, the second processor 2401 sends a third signal in a second air interface resource sub-block; the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of bit blocks and the third signal indicates whether the first set of bit blocks was received correctly.

For one embodiment, the second processor 2401 receives a second information block; wherein the second information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources that can be used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

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

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

For one embodiment, the second processor 2401 includes at least one of { antenna 420, transmitter/receiver 418, transmit processor 416, receive processor 470, multi-antenna transmit processor 471, multi-antenna receive processor 472, controller/processor 475, memory 476} in embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software functional modules, and the present application is not limited to any specific combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, Communication module on the unmanned aerial vehicle, remote control aircraft, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle Communication equipment, wireless sensor, the network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication) terminal, EMTC (enhanced MTC) terminal, the data card, the network card, vehicle Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or the system 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, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point), and other wireless communication devices.

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

Claims

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

a first processor that performs channel sensing for a first set of time-frequency resource blocks in the first set of time-frequency resource blocks;

wherein the first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block are respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal is transmitted in relation to the result of the channel sensing for the first time-frequency resource block; when the channel awareness for the first time-frequency resource block is used to determine that none of the first class of signaling indicates the first time-frequency resource block, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

2. The first node device of claim 1, wherein the first processor performs a first type of measurement when the channel sensing for the first block of time and frequency resources is used to determine that second signaling is detected; wherein the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; the first type of measurement is used to determine a first measurement value, whether the HARQ-ACK corresponding to the first signal is transmitted is related to whether the first measurement value is greater than a first threshold.

3. The first node device of claim 2, wherein the second signaling comprises scheduling information of a second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to at least one of a measurement for the second signal, a transmission type of the second signal, or whether a HARQ-ACK corresponding to the second signal is transmitted.

4. The first node device of any one of claims 1 to 3, wherein when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent, the first processor monitors a third signal in a second air interface resource sub-block; the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of blocks of bits, and the third signal indicates whether the first set of blocks of bits was received correctly.

5. The first node device of any of claims 1-3, wherein the first processor performs channel sensing for a second set of time-frequency resource blocks in the second set of time-frequency resource blocks; wherein the result of the channel sensing for the second time frequency resource block is used to determine that the second time frequency resource block belongs to a candidate time frequency resource pool in which the first node selects time frequency resources used for transmission of the first signaling and the first signal.

6. The first node device of any of claims 1-3, wherein the first and second blocks of time-frequency resources belong to time units of a first set of time units in the time domain, respectively, the first set of time units comprising a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

7. The first node device of any of claims 1-3, wherein the first processor receives a first information block; wherein the first information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

8. A second node device configured for wireless communication, comprising:

wherein the first signaling comprises scheduling information of the first signal; a first time-frequency resource block is used for determining a first air interface resource block, a second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block are respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal is transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block; when the channel awareness for the first time-frequency resource block is used to determine that none of the first type of signaling indicates the first time-frequency resource block, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

9. The second node device of claim 8, wherein the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; a first type of measurement is performed when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected; the first type of measurement is used to determine a first measurement value, whether the HARQ-ACK for the first signal is transmitted is related to whether the first measurement value is greater than a first threshold.

10. The second node device of claim 9, wherein the second signaling comprises scheduling information of a second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to at least one of a measurement for the second signal, a transmission type of the second signal, or whether a HARQ-ACK corresponding to the second signal is transmitted.

11. The second node device of any one of claims 8 to 10, wherein when the first signaling indicates that the HARQ-ACK corresponding to the first signal is sent, the second processor 2401 sends a third signal in a second air interface resource sub-block; the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of bit blocks and the third signal indicates whether the first set of bit blocks was received correctly.

12. The second node device according to any of claims 8 to 10, wherein the first time-frequency resource block and the second time-frequency resource block belong to time units of a first set of time units, respectively, in the time domain, the first set of time units comprising a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

13. The second node device of any of claims 8 to 10, wherein the second processor receives a second information block; wherein the second information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

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

performing channel sensing for a first set of time-frequency resource blocks;

wherein the first signaling comprises scheduling information of the first signal; the first time-frequency resource block is used for determining a first air interface resource block, the second time-frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block are respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether HARQ-ACK corresponding to the first signal is transmitted or not, and whether HARQ-ACK corresponding to the first signal is transmitted or not is related to the result of channel perception for the first time-frequency resource block; when the channel awareness for the first time-frequency resource block is used to determine that none of the first class of signaling indicates the first time-frequency resource block, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

15. A method in a first node according to claim 14, comprising:

performing a first type of measurement when the channel awareness for the first time-frequency resource block is used to determine that a second signaling is detected;

wherein the second signaling is a first type of signaling; the second signaling indicates the first time-frequency resource block; the first type of measurement is used to determine a first measurement value, whether the HARQ-ACK corresponding to the first signal is transmitted is related to whether the first measurement value is greater than a first threshold.

16. The method in the first node according to claim 15, characterised in that the second signalling comprises scheduling information of the second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to at least one of a measurement for the second signal, an air-cast type of the second signal, or whether a HARQ-ACK corresponding to the second signal is transmitted.

17. A method in a first node according to any of claims 14-16, comprising:

the second air interface resource sub-block belongs to the second air interface resource block; the first signal carries a first set of bit blocks and the third signal indicates whether the first set of bit blocks was received correctly.

18. A method in a first node according to any of claims 14-16, comprising:

19. The method in a first node according to any of claims 14-16, characterised in that the first and second time-frequency resource blocks belong to time units of a first set of time units, respectively, in the time domain, the first set of time units comprising a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

20. A method in a first node according to any of claims 14-16, comprising:

receiving a first information block;

wherein the first information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.

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

wherein the first signaling comprises scheduling information of the first signal; a first time frequency resource block is used for determining a first air interface resource block, the second time frequency resource block is used for determining a second air interface resource block, the first air interface resource block and the second air interface resource block are respectively used for transmitting a first type of channel, and the first air interface resource block and the second air interface resource block are overlapped in a time domain; the first signaling indicates whether a HARQ-ACK corresponding to the first signal is transmitted, the HARQ-ACK corresponding to the first signal is transmitted in relation to a result of channel sensing performed in a first set of time-frequency resource blocks for the first time-frequency resource block; when the channel awareness for the first time-frequency resource block is used to determine that none of the first type of signaling indicates the first time-frequency resource block, the first signaling indicates that the HARQ-ACK corresponding to the first signal is transmitted.

22. A method in a second node according to claim 21, characterised in that the second signalling is a first type of signalling; the second signaling indicates the first time-frequency resource block; a first type of measurement is performed when the channel sensing for the first block of time-frequency resources is used to determine that the second signaling is detected; the first type of measurement is used to determine a first measurement value, whether the HARQ-ACK corresponding to the first signal is transmitted is related to whether the first measurement value is greater than a first threshold.

23. Method in a second node according to claim 22, characterised in that the second signalling comprises scheduling information of the second signal; whether the HARQ-ACK corresponding to the first signal is transmitted is related to at least one of a measurement for the second signal, a transmission type of the second signal, or whether a HARQ-ACK corresponding to the second signal is transmitted.

24. A method in a second node according to any of claims 21-23, comprising:

25. The method in a second node according to any of claims 21-23, characterised in that the first and second blocks of time-frequency resources belong to time units of a first set of time units, respectively, in the time domain, the first set of time units comprising a positive integer number of time units; the first air interface resource block and the second air interface resource block belong to a target time unit in a time domain; any time unit in the first set of time units is associated with the target time unit.

26. A method in a second node according to any of claims 21-23, comprising:

receiving a second information block;

wherein the second information block is used to determine a first time unit pool, the first time unit pool comprising a plurality of time units, any time unit in the first time unit pool comprising time domain resources used for transmitting the first type of channel; the first air interface resource block and the second air interface resource block belong to the same time unit in the first time unit pool in a time domain.