CN112637810A

CN112637810A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN112637810A
Application number: CN201910951273.7A
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: 2019-10-08
Filing date: 2019-10-08
Publication date: 2021-04-09
Anticipated expiration: 2039-10-08
Also published as: CN112637810B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives a first signal in a first time unit; it is determined whether the second signal is transmitted in the second time unit. The first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units. The method simplifies the design of the PSFCH and improves the resource utilization rate for transmitting the PSFCH.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission 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 various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

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 the 5G V2X service and has written the 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 over 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 Feedback 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 the 3GPP RAN1#97 conference, there is a certain relationship between the time slot in which the psch (Physical Sidelink Shared Channel) is located and the time slot in which the corresponding PSFCH is located. When the secondary link and the cellular network link share resources, the relative relationship between the PSFCH slot and the PSSCH slot is complicated due to the restriction of the slot format on the resources available for the secondary link, which makes the design of the PSFCH difficult.

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 of embodiments in any node of the present application may be applied to any other 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:

receiving a first signal in a first time unit;

determining whether to transmit a second signal in a second time unit;

wherein the first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units.

As an embodiment, the problem to be solved by the present application includes: how to solve the PSFCH design difficulty brought by the variable number of PSSCH time slots corresponding to the same PSFCH time slot. The above approach solves this problem by limiting the number of PSFCH resources within one PSFCH slot.

As an embodiment, the characteristics of the above method include: the second time unit is a PSFCH slot, and any time unit in the first set of time units is a PSSCH slot corresponding to the second time unit; by limiting the number of the PSFCH resources in the second time unit, the method avoids the PSFCH design difficulty caused by the change of the number of the PSFCH resources along with the number of the time units included in the first time unit set, and simplifies the PSFCH design.

As an example, the benefits of the above method include: the design of the PSFCH is simplified.

According to one aspect of the present application, wherein the second time unit is one of K2 time units, K2 is a positive integer greater than 1; any one of the K2 time units includes time domain resources that may be used to transmit the first type of channel.

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

transmitting the second signal on a first channel;

wherein the first node determines to transmit the second signal in the second time unit; the time domain resource occupied by the first channel belongs to the second time unit; the time-frequency resource occupied by the first signal is used for determining the first channel.

receiving a first information block;

wherein the first information block indicates a first threshold; a time interval between any time unit in the first set of time units and the second time unit is not less than the first threshold.

receiving a second information block;

wherein the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold, the first node abstains from sending the second signal in the second time unit.

As an embodiment, the characteristics of the above method include: when the number of PSSCH time slots corresponding to the same PSFCH time slot is excessive, only PSFCHs corresponding to the latest PSSCH time slots are allowed to be transmitted; the wireless signals in other psch slots can adopt a blind retransmission (blind retransmission) method to simultaneously guarantee transmission reliability and time delay.

As an example, the benefits of the above method include: the time delay of HARQ feedback is reduced.

According to one aspect of the present application, wherein the first time unit is one time unit of K1 time units, K1 is a positive integer greater than 1; any one of the K1 time units is associated with one of the K2 time units.

According to an aspect of the present application, wherein the first subset of time units consists of the latest M2 time units in the first set of time units, M2 being the minimum between the second threshold and the number of time units comprised in the first set of time units; the frequency domain resource occupied by the first channel is related to the M2.

As an embodiment, the above method has a benefit of adjusting the size of the frequency domain resource available for transmitting the PSFCH according to the requirement, thereby improving the resource utilization rate.

As an embodiment, the above method has the advantage of adjusting the size of each PSFCH resource according to the requirement, thereby improving the resource utilization rate.

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:

transmitting a first signal in a first time unit;

determining whether to monitor the second signal in a second time unit;

wherein the first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units.

monitoring the second signal on a first channel;

wherein the second node determines to monitor the second signal in the second time unit; the time domain resource occupied by the first channel belongs to the second time unit; the time-frequency resource occupied by the first signal is used for determining the first channel.

transmitting a first information block;

transmitting the second information block;

wherein the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold, the second node foregoes monitoring the second signal in the second time unit.

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 method in a third node used for wireless communication, characterized by comprising:

transmitting the second information block;

wherein the second information block indicates the second threshold in the present application.

transmitting a first information block;

wherein the first information block indicates the first threshold in the present application.

According to one aspect of the application, it is characterized in that the third node is a base station.

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

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

a first receiver that receives a first signal in a first time unit;

a first processor for determining whether to transmit a second signal in a second time unit;

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

a first transmitter that transmits a first signal in a first time unit;

a second processor that determines whether to monitor the second signal in a second time unit;

The application discloses be used for wireless communication's third node equipment, its characterized in that includes:

a second transmitter that transmits a second information block;

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

the PSFCH design difficulty caused by the variable number of the PSSCH time slots corresponding to the same PSFCH time slot is solved, and the PSFCH design is simplified.

The time delay of HARQ feedback is reduced.

The resource utilization rate for transmitting the PSFCH is improved.

Drawings

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

FIG. 1 shows a flow diagram of a first signal and a second signal according to an embodiment of the present application;

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

figure 3 shows a schematic diagram of 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 whether the first node transmits the second signal in the second time unit in relation to the number of time units comprised in the first set of time units according to an embodiment of the application;

fig. 7 shows a schematic diagram of whether the first node transmits the second signal in the second time unit in relation to the number of time units comprised in the first set of time units according to an embodiment of the application;

FIG. 8 shows a schematic diagram of a first signal according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a second time cell and K2 time cells according to one embodiment of the present application;

FIG. 10 shows a schematic diagram of K2 time units and channels of a first type according to one embodiment of the present application;

fig. 11 is a diagram illustrating that time-frequency resources occupied by a first signal are used for determining a first channel according to an embodiment of the present application;

fig. 12 is a diagram illustrating that time-frequency resources occupied by a first signal are used for determining a first channel according to an embodiment of the present application;

FIG. 13 shows a schematic diagram of a first information block indicating a first threshold value according to an embodiment of the application;

FIG. 14 shows a schematic diagram of a second information block indicating a second threshold value according to an embodiment of the present application;

fig. 15 shows a schematic diagram of whether a first node transmits a second signal in a second time unit in relation to the number of time units in a first set of time units that are later in the time domain than the first time unit according to an embodiment of the application;

FIG. 16 shows a schematic of a first time cell and K1 time cells according to one embodiment of the present application;

FIG. 17 shows a schematic diagram of the relationship between K1 time cells and K2 time cells, according to an embodiment of the present application;

FIG. 18 shows a schematic diagram of K1 time units, K2 time units, and a first type of channel according to one embodiment of the present application;

fig. 19 shows a schematic diagram of frequency domain resources occupied by a first channel and M2 according to an embodiment of the present application;

fig. 20 shows a schematic diagram of frequency domain resources occupied by a first channel and M2 according to an embodiment of the present application;

FIG. 21 shows a block diagram of a processing apparatus for use in a first node device, according to an embodiment of the present application;

figure 22 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the present application;

fig. 23 shows a block diagram of a processing arrangement for a device in a third 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 a first signal and a second signal 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 blocks does not represent a particular chronological relationship between the various steps.

In embodiment 1, the first node in the present application receives a first signal in a first time unit in step 101; in step 102 it is determined whether a second signal is transmitted in a second time unit. Wherein the first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units.

As an example, the time unit is a continuous time period.

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

As an embodiment, the time unit comprises a positive integer number of consecutive multicarrier symbols.

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 multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

As an embodiment, the time unit is a slot (slot).

As one embodiment, the time unit is one sub-frame.

As an embodiment, the time unit is a sub-slot.

As an embodiment, the time unit is a mini-slot.

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

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

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

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

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

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

As one 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 by Unicast (Unicast).

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

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

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

As an embodiment, the second signal indicates that at least one bit block of the first set of bit blocks was not correctly received.

As an embodiment, the second signal carries HARQ-ACK (Hybrid Automatic Repeat reQuest-ACKnowledgement).

As an embodiment, the second signal carries an ACK.

As an embodiment, the second signal carries a NACK (Negative ACKnowledgement).

As one embodiment, associating any time unit in the first set of time units and the second time unit in the sentence comprises: for any given time unit in the first set of time units, the second time unit is the earliest one of the K2 time units in the application that is later than the given time unit and has a time interval with the given time unit that is not greater than the first threshold in the application.

As one embodiment, associating any time unit in the first set of time units and the second time unit in the sentence comprises: for any given time unit in the first set of time units, a HARQ-ACK corresponding to a wireless signal transmitted in the given time unit cannot be transmitted in time domain resources other than the second time unit.

As one embodiment, associating any time unit in the first set of time units and the second time unit in the sentence comprises: for any given time unit in the first set of time units, a HARQ-ACK corresponding to the wireless signal transmitted in the given time unit is transmitted in the second time unit.

As one embodiment, associating any time unit in the first set of time units and the second time unit in the sentence comprises: for any given time unit in the first set of time units, the PSFCH corresponding to the wireless signal transmitted in the given time unit cannot be transmitted in time domain resources other than the second time unit.

As one embodiment, associating any time unit in the first set of time units and the second time unit in the sentence comprises: for any given time unit in the first set of time units, the PSFCH corresponding to the wireless signal transmitted in the given time unit is transmitted in the second time unit.

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

As an embodiment, the first set of time units comprises a number of time units equal to 1.

As an embodiment, the first set of time units comprises a number of time units greater than 1.

As an embodiment, there are two adjacent time units in the first set of time units that are consecutive in the time domain.

As an embodiment, there are two adjacent time units in the first set of time units that are discontinuous in the time domain.

As one embodiment, any time unit in the first set of time units and the second time unit are orthogonal.

As an embodiment, whether the second signal is transmitted in the second time unit is related to whether the first set of bit blocks is correctly received.

As an embodiment, whether or not to transmit the second signal in the second time unit is related to a position of the first time unit in the first set of time units.

As an embodiment, whether the second signal is transmitted in the second time unit is related to both the number of time units included in the first set of time units and the position of the first time unit in the first set of time units.

As an embodiment, whether or not to transmit the second signal in the second time unit is related to a number of time units of the first set of time units that are later in the time domain than the first time unit.

As an embodiment, when the first node abandons sending the second signal in the second time unit, the first node abandons sending the second signal.

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. EPS200 may include one or more UEs (User Equipment) 201, a UE241 in Sidelink (sildelink) communication with UE201, NG-RAN (next generation radio access network) 202, 5G-CN (5G-Core network, 5G Core network)/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) 220, and internet service 230. The EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 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 gNB203 may be connected to other gnbs 204 via an X2 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 5G-CN/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 5G-CN/EPC210 through an S1 interface. The 5G-CN/EPC210 includes an MME (Mobility Management Entity)/AMF (Authentication Management domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, S-GW (Service Gateway) 212, and P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and 5G-CN/EPC 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include internet, intranet, IMS (IP Multimedia Subsystem) and Packet switching (Packet switching) services.

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 third node in this application includes the gNB 203.

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 wireless link between the UE201 and the UE241 is a Sidelink (Sidelink).

As an embodiment, the first node in this application and the second node in this application are respectively one terminal within 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 the present application and the second node in the present application are respectively 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 sender of the first signal in this application includes the UE 241.

As an embodiment, the receiver of the first signal in this application includes the UE 201.

As an embodiment, the sender of the first signal in the present application includes the UE 201.

As an embodiment, the receiver of the first signal in this application includes the UE 241.

As an embodiment, the sender of the second signal in this application includes the UE 201.

As an embodiment, the receiver of the second signal in this application includes the UE 241.

As an embodiment, the sender of the second signal in this application includes the UE 241.

As an embodiment, the receiver of the second signal in this application includes the UE 201.

Example 3

Embodiment 3 illustrates 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, 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 first communication node device (UE, RSU in gbb or V2X) and the second communication node device (gbb, RSU in UE or V2X), or the control plane 300 between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above the PHY301 and is responsible for the link between the first communication node device and the second communication node device. 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.

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

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

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

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

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

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

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

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 that is 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 communications device 450 to the first communications device 410, a data source 467 is used at the second communications 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 and provides the radio frequency symbol stream 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 an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal 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: receiving the first signal in the present application in the first time unit in the present application; determining whether to transmit the second signal in the present application in the second time unit in the present application. The first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units.

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: receiving the first signal in the present application in the first time unit in the present application; determining whether to transmit the second signal in the present application in the second time unit in the present application. The first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units.

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: transmitting the first signal in the present application in the first time unit in the present application; determining whether to monitor the second signal in the present application in the second time unit in the present application. The first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units.

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: transmitting the first signal in the present application in the first time unit in the present application; determining whether to monitor the second signal in the present application in the second time unit in the present application. The first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units.

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: and sending the second information block in the application. The second information block indicates the second threshold in this application.

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: and sending the second information block in the application. The second information block indicates the second threshold in this application.

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, the third node in this application comprises the first communication device 410.

As one 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 configured to receive the first signal of the present application during the first time unit of the present 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, the memory 476 is used to transmit the first signal in this application in the first time unit in this application.

As an example, at least one of the { the receive processor 470, the transmit processor 416} is used to determine whether to monitor the second signal in the second time unit in the present application; at least one of the transmit processor 468, the receive processor 456 is used to determine whether to transmit the second signal in the second time unit in the present application.

As one 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 monitor the second signal in this application on the first channel 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 used to transmit the second signal in this application on the first channel in this application.

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 receive the first information block of the present 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, the memory 476 is used to transmit the first information block in this application.

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 receive the second information block of the present 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, the memory 476 is used to transmit 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 F511, respectively, are optional.

The second node U1, in step S5101, sends the third information block; transmitting the first information block in step S5102; transmitting the second information block in step S5103; transmitting a first signal in a first time unit in step S511; determining a second time unit from the first time unit in step S5104; determining whether to monitor a second signal in the second time unit in step S512; the second signal is monitored on the first channel in step S5105.

The first node U2, receiving the third information block in step S5201; receiving a first information block in step S5202; receiving a second information block in step S5203; receiving a first signal in a first time unit in step S521; determining a second time unit from the first time unit in step S5204; determining whether a second signal is transmitted in the second time unit in step S522; the second signal is transmitted on the first channel in step S5205.

The third node U3, which transmits the third information block in step S5301; transmitting the first information block in step S5302; the second information block is transmitted in step S5303.

In embodiment 5, the first signal carries a first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of bit blocks was correctly received by the first node U2; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to transmit the second signal in the second time unit is related to a number of time units included in the first set of time units; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units. And the time domain resource occupied by the first channel belongs to the second time unit.

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.

As an example, the third node U3 is the third node in this application.

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.

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.

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

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 second given threshold value, judging that the second signal is received; otherwise, judging that the second 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 first given threshold value, judging that the second signal is received; otherwise, judging that the second signal is not received.

As an embodiment, the monitoring refers to blind decoding, that is, receiving the signal and performing decoding operation, and if it is determined that the decoding is correct according to the CRC bits, determining that the second signal is received; otherwise, judging that the second signal is not received.

As one embodiment, the sentence monitoring the second signal comprises: the second node in the present application determines whether the second signal is transmitted according to coherent detection.

As one embodiment, the sentence monitoring the second signal comprises: the second node in the present application determines whether the second signal is transmitted according to CRC.

As an embodiment, the second node in the present application monitors whether the second signal relates to the position of the first time unit in the first set of time units in the second time unit.

As an embodiment, whether the second node monitors the second signal in the second time unit is related to both the number of time units included in the first set of time units and the location of the first time unit in the first set of time units.

As an embodiment, whether the second node monitors the second signal in the second time unit is related to a number of time units in the first set of time units that are later in the time domain than the first time unit.

As an embodiment, when the second node in the present application abandons monitoring the second signal in the second time unit, the second node abandons monitoring the second signal.

As an example, the steps in blocks F51 and F53 in FIG. 5 cannot exist simultaneously.

As one example, the step in block F51 in FIG. 5 exists and the step in block F53 does not exist; the method in the second node for wireless communication in the present application comprises: transmitting the third information block; wherein the first time unit is one time unit of K1 time units, K1 is a positive integer greater than 1; the third information block indicates the K1 time units.

As one example, the step in block F53 in FIG. 5 exists and the step in block F51 does not exist; the method in the third node for wireless communication in the present application comprises: transmitting the third information block; wherein the first time unit is one time unit of K1 time units, K1 is a positive integer greater than 1; the third information block indicates the K1 time units.

As an example, where the step in block F52 in fig. 5 exists, the method in the first node for wireless communication in the present application includes: receiving the third information block; wherein the first time unit is one time unit of K1 time units, K1 is a positive integer greater than 1; the third information block indicates the K1 time units.

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

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

As an embodiment, the third information block is carried by PC5 RRC signaling.

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

As an embodiment, the third information block is transferred by multicast (Groupcast).

As an embodiment, the third information block is Broadcast (Broadcast) transmitted.

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

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

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

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

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

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

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

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

As an example, the third information block is transferred via a PC5 interface.

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

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

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

As an embodiment, the third information block explicitly indicates the K1 time units.

As an embodiment, the third information block implicitly indicates the K1 time units.

As an example, the steps in blocks F54 and F56 in FIG. 5 cannot exist simultaneously.

As one example, the step in block F54 in FIG. 5 exists and the step in block F56 does not exist; the second node in the present application sends the first information block.

As one example, the step in block F56 in FIG. 5 exists and the step in block F54 does not exist; the third node in this application sends the first block of information.

As an example, the step in block F55 in fig. 5 exists, the first node in this application receiving the first information block.

As one embodiment, the first information block indicates a first threshold; a time interval between any time unit in the first set of time units and the second time unit is not less than the first threshold.

As an example, the steps in blocks F57 and F59 in FIG. 5 cannot exist simultaneously.

As one example, the step in block F57 in FIG. 5 exists and the step in block F59 does not exist; the second node in this application sends the second information block.

As one example, the step in block F59 in FIG. 5 exists and the step in block F57 does not exist; the third node in this application sends the second block of information.

As an example, the step in block F58 in fig. 5 exists, the first node in this application receiving the second information block.

As one embodiment, the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when M1 is not less than the second threshold, the first node in this application foregoes sending the second signal in the second time unit, and the second node in this application foregoes monitoring the second signal in the second time unit.

As an embodiment, the second information block and the first information block are carried by the same signaling.

As an embodiment, the second information block and the first information block are carried by different signaling.

As an embodiment, the third information block and the second information block are carried by the same signaling.

As an embodiment, the third information block and the second information block are carried by different signaling.

As an embodiment, the third information block and the first information block are carried by the same signaling.

As an embodiment, the third information block and the first information block are carried by different signaling.

As an embodiment, the first information block, the second information block and the third information block are carried by the same signaling.

As an example, where the steps in block F510 in fig. 5 exist, the method in the first node for wireless communication in the present application includes: determining the second time unit according to the first time unit;

as an example, the step in block F510 in fig. 5 exists, and the method in the second node for wireless communication in the present application includes: determining the second time unit according to the first time unit.

As one example, the step in block F510 in fig. 5 is not present.

As an example, the step in block F511 in fig. 5 exists.

As an example, the step in block F511 in fig. 5 does not exist.

As an example, the step in block F511 in fig. 5 exists when the first node determines that the second signal is transmitted in the second time unit; the step in block F511 in fig. 5 does not exist when the first node determines to abstain from sending the second signal in the second time unit.

As an example, the step in block F511 in fig. 5 exists when the second node determines to monitor the second signal in the second time unit; the step in block F511 in fig. 5 is absent when the second node determines to abstain from monitoring the second signal in the second time unit.

As an example, the first signal 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 signal is transmitted on a PSCCH (Physical Sidelink Control Channel).

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.

As an example, a portion of the first signal is transmitted on the PSCCH and another portion of the first signal is transmitted on the PSCCH.

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

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

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

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

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

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

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

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

As an embodiment, the third information block is transmitted on the PSBCH.

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

Example 6

Embodiment 6 illustrates a schematic diagram of whether a first node transmits a second signal in a second time unit in relation to the number of time units comprised in a first set of time units according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, when the number of time units included in the first set of time units is greater than M3, the first node abandons sending the second signal in the second time unit; the M3 is a positive integer greater than 1.

As one embodiment, the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M3.

As one embodiment, the first node foregoes transmitting the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M3 and each block of bits in the first set of blocks of bits is correctly received; the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M3 and there is one block of bits in the first set of blocks of bits that was not correctly received.

As one embodiment, when the number of time units included in the first set of time units is greater than M3, the second node foregoes monitoring the second signal in the second time unit; when the number of time units included in the first set of time units is not greater than the M3, the second node monitors the second signal in the second time unit; the M3 is a positive integer greater than 1.

Example 7

Embodiment 7 illustrates a schematic diagram of whether a first node transmits a second signal in a second time unit in relation to the number of time units comprised in a first set of time units according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first node relinquishes sending the second signal in the second time unit when the number of time units included in the first set of time units is greater than M4 and the first time unit is not one of the latest M4 time units in the first set of time units; m4 is a positive integer greater than 1.

As one embodiment, the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M4.

As one embodiment, the first node foregoes transmitting the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M4 and each block of bits in the first set of blocks of bits is correctly received; the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is not greater than the M4 and there is one block of bits in the first set of blocks of bits that was not correctly received.

As an example, the M4 is the second threshold in this application.

As one embodiment, the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is greater than the M4 and the first time unit is one of the latest M4 time units in the first set of time units.

As one embodiment, the first node relinquishes transmission of the second signal in the second time unit when the number of time units included in the first set of time units is greater than the M4, the first time unit is one of the latest M4 time units in the first set of time units, and each block of bits in the first set of blocks of bits is correctly received; the first node transmits the second signal in the second time unit when the number of time units included in the first set of time units is greater than the M4, the first time unit is one of the latest M4 time units in the first set of time units, and there is one block of bits in the first set of blocks of bits that was not correctly received.

As one embodiment, the second node foregoes monitoring the second signal in the second time unit when the number of time units included in the first set of time units is greater than M4 and the first time unit is not one of the latest M4 time units in the first set of time units; the second node monitors the second signal in the second time cell when the number of time cells included in the first set of time cells is greater than the M4 and the first time cell is one of the latest M4 time cells in the first set of time cells; m4 is a positive integer greater than 1.

As a sub-embodiment of the above embodiment, when the number of time units included in the first set of time units is not greater than the M4, the second node monitors the second signal in the second time unit.

As a sub-embodiment of the above embodiment, the M4 is the second threshold in this application.

Example 8

Embodiment 8 illustrates a schematic diagram of a first signal according to an embodiment of the present application; as shown in fig. 8. In embodiment 8, the first signal includes a first signaling and a first sub-signal; the first sub-signal carries the first bit block set in this application, and the first signaling includes scheduling information of the first sub-signal.

As an embodiment, the scheduling information of the first sub-signal 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).

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

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

As an embodiment, the first signaling indicates whether to transmit the second signal in the present application.

As an embodiment, the sender of the first signaling determines whether to send the second signal according to the number of time units included in the first set of time units, and then indicates whether to send the second signal in the first signaling.

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 the PSCCH.

As an example, the first sub-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 sub-signal is transmitted on a psch.

Example 9

Embodiment 9 illustrates a schematic diagram of a second time cell and K2 time cells according to one embodiment of the present application; as shown in fig. 9. In example 9, said second time unit is one of said K2 time units; any one of the K2 time units includes time domain resources that may be used to transmit the first type of channel. In fig. 9, the indices of K2 time units are # 0., # (K2-1), respectively.

For one embodiment, the first type of channel comprises a physical layer channel.

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

As an embodiment, the first type of channel is used to carry HARQ-ACK.

For one embodiment, the first type of channel is used to carry HARQ-ACK on the secondary link.

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

As an embodiment, the first type of CHannel adopts a Physical Uplink Control CHannel (PUCCH) Format (Format) 0.

As an embodiment, the first type channel adopts a PSFCH Format (Format) 0.

As an embodiment, the first type of channel adopts PUCCH Format (Format) 2.

As an embodiment, the first type channel adopts a PSFCH Format (Format) 2.

As an example, any two time units of the K2 time units are orthogonal to each other.

As an embodiment, two adjacent time units of the K2 time units are consecutive in the time domain.

As an example, two adjacent time units of the K2 time units are not consecutive in the time domain.

As an embodiment, the second time unit is an earliest one of the K2 time units that is later than the first time unit and has a time interval with the first time unit that is not greater than the first threshold.

Example 10

Embodiment 10 illustrates a schematic diagram of K2 time units and channels of a first type according to an embodiment of the present application; as shown in fig. 10. In embodiment 10, a first sub-pool of time and frequency resources includes time domain resources belonging to the K2 time units, and the first sub-pool of time and frequency resources is reserved for the first type of channel. In fig. 10, the indices of K2 time units are # 0., # (K2-1), respectively.

As an embodiment, said first time-frequency resource sub-pool of sentences reserved for said first class of channels comprises: the first time-frequency resource sub-pool is reserved for wireless signals carried by the first type of channel.

As an embodiment, said first time-frequency resource sub-pool of sentences reserved for said first class of channels comprises: the first sub-pool of time-frequency resources is reserved for transmission of radio signals carried by the first type of channel.

As an embodiment, the first sub-pool of time-frequency resources includes a portion of the time-domain resources in each of the K2 time units in the time domain.

As an embodiment, the first time-frequency resource sub-pool includes the last positive integer number of multicarrier symbols in each of the K2 time units in the time domain.

As an embodiment, the first time-frequency resource sub-pool includes K2 time-frequency resource blocks, and the time-frequency resources included in the K2 time-frequency resource blocks respectively belong to the K2 time units; and any one of the K2 time frequency resource blocks can transmit the first type of channel corresponding to the wireless signal transmitted in the second threshold time unit at most.

As an embodiment, a first time-frequency resource block includes time-domain resources belonging to the second time unit, and the first time-frequency resource block is reserved for the first type of channel; and the first type of channel corresponding to the wireless signals transmitted in the second threshold time units in the first time unit set can be transmitted on the first time frequency resource block at most.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource block can transmit, at most, the first type of channel corresponding to the wireless signal transmitted in the second threshold latest time unit in the first time unit set.

As an embodiment, the first time-frequency resource block is one time-frequency resource block of K2 time-frequency resource blocks.

As an embodiment, the first time-frequency Resource sub-pool comprises a positive integer number of REs (Resource Element Resource elements).

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

As an embodiment, the first sub-pool of time-frequency resources comprises a positive integer number of non-contiguous multicarrier symbols in the time domain.

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

As an embodiment, the first time-frequency resource sub-pool includes a positive integer number of sub-channels (sub-channels) in a 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, any one of the K2 time-frequency resource blocks includes a positive integer number of REs.

As an embodiment, any one of the K2 time-frequency resource blocks includes a positive integer number of multicarrier symbols in the time domain.

As an embodiment, any one of the K2 time-frequency resource blocks includes a positive integer number of PRBs in the frequency domain.

Example 11

Embodiment 11 illustrates a schematic diagram in which time-frequency resources occupied by a first signal are used for determining a first channel according to an embodiment of the present application; as shown in fig. 11.

As an embodiment, the time-frequency resource occupied by the first signal is used by the first node to determine the first channel.

As an embodiment, the time-frequency resource occupied by the first signal is used by the second node to determine the first channel.

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

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

For one embodiment, the first channel is a PSFCH.

As an embodiment, the first channel occupies a part of time domain resources in the second time unit in the time domain.

As an embodiment, the first channel occupies the last positive integer number of multicarrier symbols in the second time unit in the time domain.

As an embodiment, the time domain resource occupied by the first signal is used to determine the time domain resource occupied by the first channel.

As an embodiment, the time-frequency resource occupied by the first signal is used to determine the time-domain resource and the frequency-domain resource occupied by the first channel.

As an embodiment, the time-frequency resource occupied by the first signal is used to determine the time-domain resource, the frequency-domain resource and the code-domain resource occupied by the first channel.

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

As an embodiment, the code domain resource includes one or more of a Multiple Access Signature (Multiple Access Signature), a spreading sequence (spreading) sequence, a scrambling sequence (scrambling), an interleaving pattern (interleaving pattern), a RE mapping method, a Preamble (Preamble), a Codebook (Codebook) or a Codeword (Codeword).

As an embodiment, the second signal in this application carries a first sequence, and whether the first set of bit blocks is correctly received is used to determine the first sequence.

As a sub-embodiment of the above embodiment, the first channel carries the first sequence.

As a sub-embodiment of the above embodiment, the first sequence comprises a pseudo-random sequence.

As a sub-embodiment of the above embodiment, the first sequence comprises a Zadoff-Chu sequence.

As a sub-embodiment of the above embodiment, the first sequence comprises a low peak-to-average ratio sequence.

As a sub-embodiment of the above embodiment, an ID (IDentity) of a sender of the first signal is used to determine the first sequence.

As a sub-embodiment of the above embodiment, the ID of the first node is used to determine the first sequence.

As a sub-embodiment of the above embodiment, the target recipient of the first signal is a first set of nodes comprising a positive integer number of nodes, the first node being one node in the first set of nodes; the index of the first node in the first set of nodes is used to determine the first sequence.

Example 12

Embodiment 12 illustrates a schematic diagram in which time-frequency resources occupied by a first signal are used for determining a first channel according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the air interface resource occupied by the first channel is a first air interface resource block, where the first air interface resource block is one air interface resource block in a first air interface resource set, the first air interface resource set is one candidate air interface resource set of P1 candidate air interface resource sets, P1 is a positive integer greater than 1, and any one candidate air interface resource set of the P1 candidate air interface resource sets includes a positive integer of air interface resource blocks; the first sub-channel is a sub-channel occupied by the first signal; (the first time unit, the first subchannel) pair is one of P2 candidate pairs, P2 is a positive integer greater than 1; any candidate pair of the P2 candidate pairs corresponds to one candidate air interface resource set of the P1 candidate air interface resource sets; the first air interface resource set is a candidate air interface resource set of a corresponding pair (the first time unit, the first subchannel) in the P1 candidate air interface resource sets. In fig. 12, the indexes of the P1 candidate air interface resource sets are # 0., # (P1-1), respectively, and the indexes of the P2 candidate pairs are # 0., # (P2-1), respectively.

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 subchannel is a subchannel with a smallest index occupied by the first signal.

As an embodiment, the first subchannel is a subchannel with a largest index occupied by the first signal.

As an embodiment, the first sub-channel is a starting sub-channel occupied by the first signal.

As an embodiment, the first sub-channel is a sub-channel occupied by the first signaling in embodiment 8.

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

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

As an embodiment, any air interface resource block in the P1 candidate air interface resource sets is reserved for one first type channel.

As an embodiment, the first set of air interface resources includes only one air interface resource block.

As an embodiment, the first set of air interface resources includes a plurality of air interface resource blocks.

As a sub-embodiment of the above embodiment, the ID of the sender of the first signal is used to determine the first resource block from the first set of resource blocks.

As a sub-embodiment of the above embodiment, the ID of the first node is used to determine the first resource block from the first set of air interface resources.

As a sub-embodiment of the above embodiment, the target recipient of the first signal is a first set of nodes comprising a positive integer number of nodes, the first node being one node in the first set of nodes; an index of the first node in the first set of nodes is used to determine the first resource block from the first set of air interface resources.

As a sub-embodiment of the above embodiment, whether the first set of bit blocks is correctly received is used to determine the first resource block from the first set of air interface resources.

As an embodiment, the correspondence between the P2 candidate pairs and the P1 candidate air interface resource sets is preconfigured.

As an embodiment, the correspondence between the P2 candidate pairs and the P1 candidate air interface resource sets is configured by RRC signaling.

As an embodiment, any candidate pair of the P2 candidate pairs corresponds to only one candidate air interface resource set of the P1 candidate air interface resource sets.

As an embodiment, the P1 is equal to the P2, and the P2 candidate pairs are in one-to-one correspondence with the P1 candidate air interface resource sets.

As an embodiment, the P1 is smaller than the P2, and two candidate pairs in the P2 candidate pairs correspond to the same candidate air interface resource set in the P1 candidate air interface resource sets.

As one embodiment, the P1 is greater than the P2.

As an embodiment, any air interface resource block in the P1 candidate air interface resource sets includes a time-frequency resource.

As an embodiment, any air interface resource block in the P1 candidate air interface resource sets includes time-frequency resources and code domain resources.

As an embodiment, any air interface resource block in the P1 candidate air interface resource sets includes a positive integer number of REs in the time-frequency domain.

As an embodiment, any air interface resource block in the P1 candidate air interface resource sets includes a positive integer number of multicarrier symbols in the time domain, and includes a positive integer number of PRBs in the frequency domain.

As an embodiment, one candidate air interface resource set in the P1 candidate air interface resource sets only includes one air interface resource block.

As an embodiment, one candidate air interface resource set in the P1 candidate air interface resource sets includes multiple air interface resource blocks.

Example 13

Embodiment 13 illustrates a schematic diagram of a first information block indicating a first threshold according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, a time interval between any one time unit in the first set of time units in this application and the second time unit in this application is not less than the first threshold.

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 PC5 RRC signaling.

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

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

As an embodiment, the first information block is transferred by multicast (Groupcast).

As an embodiment, the first information block is Broadcast (Broadcast) transmitted.

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 transmitted from a sender of the first signal to the first node.

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

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

As an embodiment, the first information block explicitly indicates the first threshold.

As one embodiment, the first information block implicitly indicates the first threshold.

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

As one embodiment, the first threshold is a positive integer.

As an embodiment, the unit of the first threshold is a slot (slot).

As one embodiment, the unit of the first threshold is a sub-frame (sub-frame).

As an embodiment, the unit of the first threshold is the time unit.

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

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

As an example, the time interval between two given time units refers to: the time interval between the starting instants of the two given time units.

Example 14

Embodiment 14 illustrates a schematic diagram of a second information block indicating a second threshold according to an embodiment of the present application; as shown in fig. 14.

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 PC5 RRC signaling.

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

As an embodiment, the second information block is transmitted by Unicast (Unicast).

As an embodiment, the second information block is transferred by multicast (Groupcast).

As an embodiment, the second information block is Broadcast (Broadcast) transmitted.

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

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

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

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

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

As an embodiment, the second information block explicitly indicates the second threshold.

As an embodiment, the second information block implicitly indicates the second threshold.

Example 15

Embodiment 15 illustrates a schematic diagram of whether a first node transmits a second signal in a second time unit in relation to a number of time units in a first set of time units that are later in the time domain than the first time unit according to one embodiment of the present application; as shown in fig. 15. In embodiment 15, there are M1 time units in the first set of time units that are later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold in this application, the first node abandons sending the second signal in the second time unit.

As one embodiment, the second threshold is a positive integer.

As one embodiment, the second threshold is a positive integer greater than 1.

As one example, the M1 is equal to 0.

As one example, the M1 is greater than 0.

For one embodiment, the first node transmits the second signal when the M1 is less than the second threshold.

For one embodiment, when M1 is less than the second threshold, whether to transmit the second signal and whether the first set of blocks of bits was received correctly.

As a sub-implementation of the above embodiment, when M1 is less than the second threshold and each bit block in the first set of bit blocks is received correctly, the first node relinquishes sending the second signal.

As a sub-embodiment of the above embodiment, the first node transmits the second signal when the M1 is less than the second threshold and there is one block of bits in the first set of blocks of bits that was not correctly received.

As an embodiment, the sentence second given time unit later than the first given time unit comprises: the start time of the second given time unit is later than the end time of the first given time unit.

As an embodiment, the sentence second given time unit later than the first given time unit comprises: the starting time of the second given time unit is later than the starting time of the first given time unit.

As an embodiment, the sentence second given time unit later than the first given time unit comprises: the end time of the second given time unit is later than the end time of the first given time unit.

Example 16

Embodiment 16 illustrates a schematic diagram of a first time cell and K1 time cells according to one embodiment of the present application; as shown in fig. 16. In example 16, said first time unit is one of said K1 time units; any one of the K1 time units is associated with one of the K2 time units. In fig. 16, the indices of K1 time units are # 0., # (K1-1), respectively.

As one embodiment, a time interval between any one of the K1 time units and its associated one of the K2 time units is not less than the first threshold.

As one embodiment, the associating a first given time unit of the K1 time units with a second given time unit of the K2 time units in the sentence comprises: the second given time unit is an earliest one of the K2 time units that is later than the first given time unit and has a time interval with the first given time unit that is not greater than the first threshold.

As one embodiment, the associating a first given time unit of the K1 time units with a second given time unit of the K2 time units in the sentence comprises: HARQ-ACK corresponding to the wireless signal transmitted in the first given time unit cannot be transmitted in time domain resources other than the second given time unit.

As one embodiment, the associating a first given time unit of the K1 time units with a second given time unit of the K2 time units in the sentence comprises: HARQ-ACK corresponding to the wireless signal transmitted in the first given time unit is transmitted in the second given time unit.

As one embodiment, any one of the K1 time units is associated with only one of the K2 time units.

As one example, there are multiple time units in the K1 time units that are associated with the same time unit in the K2 time units.

As one embodiment, any two of the K1 time units are associated with different ones of the K2 time units.

As an embodiment, two adjacent time units of the K1 time units are consecutive in the time domain.

As an embodiment, two adjacent time units of the K1 time units are discontinuous in the time domain.

As an example, any two time units of the K1 time units are orthogonal to each other.

As an embodiment, any time unit in the first set of time units is one time unit of the K1 time units.

As an embodiment, any one of the K1 time units is one of K time units, K being a positive integer no less than the K1; the third information block in embodiment 5 indicates the K1 time units from among the K time units.

As a sub-embodiment of the above embodiment, the K is greater than the K1.

As a sub-embodiment of the above embodiment, the K is equal to the K1.

As a sub-embodiment of the above embodiment, the K time units are consecutive in the time domain.

As a sub-embodiment of the above embodiment, any two time units of the K time units are orthogonal to each other.

As a sub-embodiment of the above embodiment, the third information block explicitly indicates the K1 time units from the K time units.

As a sub-embodiment of the above embodiment, the third information block implicitly indicates the K1 time units from among the K time units.

As a sub-embodiment of the foregoing embodiment, the third information block includes K bits, and the K bits and the K time units are in one-to-one correspondence; for any given time cell of the K time cells, the given time cell is one time cell of the K1 time cells if the corresponding bit equals the first bit value; the given time unit is not one of the K1 time units if the corresponding bit is not equal to the first bit value.

As a reference example of the above sub-embodiment, the first bit value is equal to 1.

As a reference example of the above sub-embodiment, the first bit value is equal to 0.

Example 17

Embodiment 17 illustrates a schematic diagram of the relationship between K1 time cells and K2 time cells according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, any one of the K2 time units is one of the K1 time units, and the K1 is a positive integer that is not less than the K2 and is greater than 1. In fig. 17, the indices of K1 time units are # 0., # (K1-1), respectively.

As one example, the K2 is equal to the K1.

As one embodiment, the K2 is less than the K1.

As one example, the third information block in example 5 explicitly indicates the K2 time units from the K1 time units.

As one example, the third information block in example 5 implicitly indicates the K2 time units from the K1 time units.

As one example, the K2 time cells occur at equal intervals among the K1 time cells.

As an example, the number of time units out of the K1 time units and out of the K2 time units that exist between any two adjacent time units out of the K2 time units is equal.

As an example, there are N-1 time units of the K1 time units but outside the K2 time units between any two adjacent time units of the K2 time units, N being a positive integer.

As a sub-embodiment of the above-described embodiment, the third information block in embodiment 5 indicates the N.

As a sub-embodiment of the above embodiment, the second threshold in this application is not less than N.

Example 18

Embodiment 18 illustrates a schematic diagram of K1 time cells, K2 time cells, and a first type of channel according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, any one of the K2 time units is one of the K1 time units; the time domain resources included in the first time frequency resource sub-pool belong to the K2 time units, the time domain resources included in the first time frequency resource pool include the K1 time units, and the first time frequency resource sub-pool is a subset of the first time frequency resource pool; the first time-frequency resource sub-pool is reserved for the first type of channel corresponding to the wireless signals transmitted in the first time-frequency resource pool. In fig. 18, the indices of K1 time units are # 0., # (K1-1), respectively.

As an embodiment, the first type of channel cannot be transmitted in the first time-frequency resource pool and in time-frequency resources outside the first time-frequency resource sub-pool.

As an embodiment, the time domain resources included in the first time-frequency resource pool are the K1 time units.

As one embodiment, the first pool of time-frequency resources is reserved for sidelinks.

As an example, the first pool of time and frequency resources is reserved for V2X communication.

As an embodiment, the first time-frequency resource pool and the first time-frequency resource sub-pool comprise the same frequency domain resources.

As an embodiment, the frequency domain resources comprised by the first sub-pool of time frequency resources is a subset of the frequency domain resources comprised by the first sub-pool of time frequency resources.

As an embodiment, the first time-frequency resource pool includes a positive integer number of PRBs in a frequency domain.

Example 19

Embodiment 19 illustrates a schematic diagram of frequency domain resources occupied by a first channel according to an embodiment of the present application in relation to M2; as shown in fig. 19. In embodiment 19, the first subset of time units consists of the latest M2 time units in the first set of time units, the M2 being the minimum between the second threshold and the number of time units comprised in the first set of time units; the size of the frequency domain resource occupied by the first channel is related to the M2.

For one embodiment, the M2 is a positive integer no greater than the second threshold.

As one embodiment, the first time unit is one time unit in the first subset of time units.

As an embodiment, the size of the frequency domain resource occupied by the first channel is linearly related to the inverse number of the M2.

As an embodiment, the size of the frequency domain resource occupied by the first channel decreases as the M2 increases.

As an embodiment, when the M2 is equal to Q1, the frequency domain resource occupied by the first channel is W1 subcarriers; when the M2 is equal to Q2, the frequency domain resource occupied by the first channel is W2 subcarriers; q1 and Q2 are respectively non-negative integers, and W1 and W2 are respectively positive integers; the Q1 is less than the Q2, the W1 is not less than the W2.

As a sub-embodiment of the above embodiment, the W1 is greater than the W2.

As a sub-embodiment of the above embodiment, the W1 is equal to the W2.

As an embodiment, the size of the frequency domain resource included in the first time-frequency resource sub-pool in embodiment 10 is independent of the M2.

Example 20

Embodiment 20 illustrates a schematic diagram of frequency domain resources occupied by a first channel according to an embodiment of the present application and related to M2; as shown in fig. 20. In embodiment 20, the frequency domain resources occupied by the first channel belong to a first frequency domain resource pool, and the size of the first frequency domain resource pool is related to the M2.

As an embodiment, the first time-frequency resource sub-pool in embodiment 10 includes frequency-domain resources that are the first frequency-domain resource pool.

As an embodiment, the size of the first frequency-domain resource pool and the M2 are linearly related.

As one embodiment, the size of the first pool of frequency domain resources increases as the M2 increases.

For one embodiment, when the M2 is equal to Q1, the first pool of frequency-domain resources consists of W3 subcarriers; when the M2 is equal to Q2, the first pool of frequency-domain resources consists of W4 subcarriers; q1 and Q2 are respectively non-negative integers, and W3 and W4 are respectively positive integers; the Q1 is less than the Q2, the W3 is not greater than the W4.

As a sub-embodiment of the above embodiment, the W3 is smaller than the W4.

As a sub-embodiment of the above embodiment, the W3 is equal to the W4.

As an embodiment, the size of the frequency domain resource occupied by the first channel is independent of the M2.

As an embodiment, the position of the frequency domain resource occupied by the first channel is related to the M2.

Example 21

Embodiment 21 is a block diagram illustrating a configuration of a processing apparatus used in a first node device according to an embodiment of the present application; as shown in fig. 21. In fig. 21, a processing means 2100 in a first node device comprises a first receiver 2101 and a first processor 2102. In embodiment 21, the first receiver 2101 receives a first signal in a first time unit; the first processor 2102 determines whether the second signal is transmitted in the second time unit.

In embodiment 21, the first signal carries a first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether or not to transmit the second signal in the second time unit is related to the number of time units included in the first set of time units.

As one embodiment, the second time unit is one time unit of K2 time units, K2 is a positive integer greater than 1; any one of the K2 time units includes time domain resources that may be used to transmit the first type of channel.

For one embodiment, the first processor 2102 transmits the second signal on a first channel; wherein the first node device determines to transmit the second signal in the second time unit; the time domain resource occupied by the first channel belongs to the second time unit; the time-frequency resource occupied by the first signal is used for determining the first channel.

For one embodiment, the first receiver 2101 receives a first information block; wherein the first information block indicates a first threshold; a time interval between any time unit in the first set of time units and the second time unit is not less than the first threshold.

For one embodiment, the first receiver 2101 receives a second information block; wherein the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold, the first node device abandons sending the second signal in the second time unit.

As one embodiment, the first time unit is one time unit of K1 time units, K1 is a positive integer greater than 1; any one of the K1 time units is associated with one of the K2 time units.

As one embodiment, the first subset of time units consists of the latest M2 time units in the first set of time units, M2 being the minimum between the second threshold and the number of time units included in the first set of time units; the frequency domain resource occupied by the first channel is related to the M2.

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 receiver 2101 may comprise at least one of the embodiments { 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 processor 2102 includes at least one of the { antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller/processor 459, memory 460, data source 467} of embodiment 4.

Example 22

Embodiment 22 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. 22. In fig. 22, the processing means 2200 in the second node device comprises a first transmitter 2201 and a second processor 2202. In embodiment 22, the first transmitter 2201 transmits a first signal in a first time unit; the second processor 2202 determines whether to monitor the second signal in the second time unit.

In embodiment 22, the first signal carries a first set of bit blocks comprising a positive integer number of bit blocks; the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units.

For one embodiment, the second processor 2202 monitors the second signal on a first channel; wherein the second node device determines to monitor the second signal in the second time unit; the time domain resource occupied by the first channel belongs to the second time unit; the time-frequency resource occupied by the first signal is used for determining the first channel.

For one embodiment, the first transmitter 2201 transmits a first information block; wherein the first information block indicates a first threshold; a time interval between any time unit in the first set of time units and the second time unit is not less than the first threshold.

For one embodiment, the first transmitter 2201 transmits the second information block; wherein the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold, the second node device abstains from monitoring the second signal in the second time unit.

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 first transmitter 2201 comprises 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 of embodiment 4.

For one embodiment, the second processor 2202 includes at least one of { antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller/processor 475, memory 476} in embodiment 4.

Example 23

Embodiment 23 illustrates a block diagram of a processing apparatus for use in a third node device according to an embodiment of the present application; as shown in fig. 23. In fig. 23, a processing means 2300 in the third node device includes a second transmitter 2301. In embodiment 23, the second transmitter 2301 transmits a second information block, wherein the second information block indicates the second threshold in the present application.

As an embodiment, the second transmitter 2301 transmits a first information block; wherein the first information block indicates the first threshold in the present application.

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

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

For one embodiment, the second transmitter 2301 includes at least one of { antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, 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 instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. 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 plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, Machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted 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 receiver that receives a first signal in a first time unit;

2. The first node device of claim 1, wherein the second time unit is one of K2 time units, K2 is a positive integer greater than 1; any one of the K2 time units includes time domain resources that may be used to transmit the first type of channel.

3. The first node device of claim 1 or 2, wherein the first processor transmits the second signal on a first channel; wherein the first node device determines to transmit the second signal in the second time unit; the time domain resource occupied by the first channel belongs to the second time unit; the time-frequency resource occupied by the first signal is used for determining the first channel.

4. The first node device of any of claims 1-3, wherein the first receiver receives a first information block; wherein the first information block indicates a first threshold; a time interval between any time unit in the first set of time units and the second time unit is not less than the first threshold.

5. The first node device of any of claims 1-4, wherein the first receiver receives a second information block; wherein the second information block indicates a second threshold; there are M1 time units in the first set of time units later in the time domain than the first time unit, M1 being a non-negative integer; when the M1 is not less than the second threshold, the first node device abandons sending the second signal in the second time unit.

6. The first node apparatus of any of claims 2 to 5, wherein the first time unit is one of K1 time units, K1 is a positive integer greater than 1; any one of the K1 time units is associated with one of the K2 time units.

7. The first node device of claim 3, wherein a first subset of time units consists of the latest M2 time units in the first set of time units, M2 being the minimum between the second threshold and the number of time units included in the first set of time units; the frequency domain resource occupied by the first channel is related to the M2.

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

a first transmitter that transmits a first signal in a first time unit;

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

receiving a first signal in a first time unit;

determining whether to transmit a second signal in a second time unit;

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

transmitting a first signal in a first time unit;

determining whether to monitor the second signal in a second time unit;

wherein the first signal carries a first set of bit blocks, the first set of bit blocks comprising a positive integer number of bit blocks;

the second signal indicates whether the first set of blocks of bits was received correctly; the first time unit is one time unit in a first set of time units; the first set of time units comprises a positive integer number of time units, any time unit in the first set of time units being associated with the second time unit; whether to monitor the second signal in the second time unit is related to a number of time units included in the first set of time units.