CN112713973B

CN112713973B - Method and device used in node of wireless communication

Info

Publication number: CN112713973B
Application number: CN201911019097.XA
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: 2019-10-24
Filing date: 2019-10-24
Publication date: 2022-11-01
Anticipated expiration: 2039-10-24
Also published as: CN112713973A; WO2021077961A1

Abstract

A method and apparatus in a node used for wireless communication is disclosed. A first node receives a first signaling and a first signal in a first time-frequency resource block; a second signal is transmitted in the first empty resource block. The first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block. The method improves the utilization rate of the PSFCH resource in the sidelink communication, and does not increase the signaling overhead.

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 air interface technology (NR, new Radio) (or Fifth Generation, 5G) is decided over #72 sessions of 3GPP (3 rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR begins over 3GPP RAN #75 sessions over WI (Work Item ) of NR.

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 formulating requirements for the service of 5G V2X and has written the standard TS22.886. The 3GPP defines a 4-application scenario group (Use Case Groups) for the 5g V2X service, including automatic queuing Driving (Vehicles platform), extended sensing support (Extended Sensors), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). NR-based V2X technical studies have been initiated on the 3GPP ran #80 event.

Disclosure of Invention

Compared with the existing LTE (Long-term Evolution) V2X system, one significant feature of NR V2X is to support unicast and multicast and support HARQ (Hybrid Automatic Repeat reQuest) function. A PSFCH (Physical Sidelink Feedback Channel) Channel is introduced for HARQ-ACK (Acknowledgement) transmission on the secondary link. According to the result of the 3GPP RAN1# #96bconference, the PSFCH resource in a secondary link resource pool is configured or pre-configured periodically. According to the result of the 3gpp ran1#97 conference, the time slot and sub-Channel occupied by the psch (Physical Sidelink Shared Channel) will be used to determine the corresponding PSFCH resource. The inventor finds that, under the mapping mechanism of the PSSCH and the PSFCH resource, the determination of the PSFCH resource is influenced by the change of the number of the sub-channels occupied by the PSSCH.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the sidelink communication scenario as an example, the present application is also applicable to other cellular network communication scenarios, and achieves technical effects similar to those in the sidelink communication scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to sidelink communications and cellular communications) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

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

transmitting a second signal in the first air interface resource block;

wherein the first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the problem to be solved by the present application includes: how to improve the utilization rate of PSFCH resources under the condition that the size of frequency domain resources occupied by PSSCH changes dynamically. The method establishes a relation between the size of the frequency domain resource occupied by the PSSCH and the corresponding information bit load transmitted on the PSFCH, thereby solving the problem.

As an embodiment, the characteristics of the above method include: the first signal is transmitted on a PSSCH, and the second signal is transmitted on a PSFCH corresponding to the first signal; the number of information bits carried by the second signal is related to the size of the frequency domain resource occupied by the first signal.

As an embodiment, the benefits of the above method include: the utilization rate of the PSFCH resource is improved, and resource waste is avoided.

As an example, the benefits of the above method include: the load of the PSFCH is determined implicitly, and signaling overhead is saved.

According to an aspect of the application, the first set of bit blocks comprises K bit blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resources occupied by the first time-frequency resource block.

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

receiving a third set of signals in a third set of time-frequency resource blocks;

wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

According to one aspect of the application, the position of the time unit in the first time unit set, to which the first time-frequency resource block belongs in the time domain, is default.

According to an aspect of the present application, it is characterized in that the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the size of the frequency domain resource occupied by any time-frequency resource block in the third time-frequency resource block set.

According to an aspect of the present application, wherein the first signaling indicates that the first time-frequency resource block is used for determining the first empty resource block.

According to an aspect of the present application, it is characterized in that the size of the frequency domain resource occupied by the first air interface resource block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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 present disclosure discloses a method in a second node used for wireless communication, comprising:

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

receiving a second signal in a first air interface resource block;

According to an aspect of the application, the first set of bit blocks comprises K bit blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

transmitting a third set of signals in a third set of time-frequency resource blocks;

wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one signal in the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

According to an aspect of the application, wherein the first signaling indicates that the first time-frequency resource block is used for determining the first empty resource block.

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

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

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

a first receiver that receives a first signaling and a first signal in a first time-frequency resource block;

a first transmitter that transmits a second signal in a first air interface resource block;

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

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

a second receiver that receives a second signal in the first air interface resource block;

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

and the information bit load on the corresponding PSFCH is adjusted according to the size of the frequency domain resource occupied by the PSSCH, so that the utilization rate of the PSFCH resource is improved, and meanwhile, the signaling overhead is not increased.

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 first signaling, a first signal and a second signal according to an embodiment of the 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 application;

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

fig. 7 shows a schematic diagram of a first signaling and a resource mapping of a first signal in a first time-frequency resource block according to an embodiment of the application;

figure 8 shows a schematic diagram of a first signaling and a resource mapping of the first signal in a first time-frequency resource block according to an embodiment of the present application;

figure 9 shows a schematic diagram of first signaling and resource mapping of a first signal in a first time-frequency resource block according to one embodiment of the present application;

FIG. 10 shows a schematic diagram of a first time-frequency resource block being used to determine a first empty resource block according to one embodiment of the present application;

FIG. 11 illustrates a diagram of a first time-frequency resource block being used to determine a first empty resource block according to one embodiment of the present application;

figure 12 shows a schematic diagram of a first time-frequency resource block being used for determining a first empty resource block according to an embodiment of the present application;

FIG. 13 shows a schematic diagram of whether a second block of bits includes K binary bits according to one embodiment of the application;

FIG. 14 shows a schematic diagram of a third set of time-frequency resource blocks and a third set of signals according to an embodiment of the present application;

FIG. 15 shows a schematic diagram of a third set of time-frequency resource blocks and a third set of signals according to an embodiment of the present application;

FIG. 16 shows a schematic diagram of a first set of time units and a target time unit according to an embodiment of the present application;

fig. 17 shows a schematic diagram of whether a second bit block comprises a second bit sub-block according to an embodiment of the application;

fig. 18 is a schematic diagram illustrating a position of a time unit in a first time unit set to which a first time-frequency resource block belongs in a time domain according to an embodiment of the present application;

fig. 19 is a schematic diagram illustrating a position of a time unit in a first time unit set to which a first time-frequency resource block belongs in a time domain according to an embodiment of the present application;

fig. 20 shows a schematic diagram of a relationship between a size of a frequency domain resource occupied by a first time-frequency resource block and a size of a frequency domain resource occupied by a time-frequency resource block in a third set of time-frequency resource blocks according to an embodiment of the present application;

figure 21 shows a schematic diagram of first signalling indicating that a first time-frequency resource block is used for determining a first empty resource block according to one embodiment of the present application;

fig. 22 shows a schematic diagram of a size of a frequency domain resource occupied by a first air interface resource block and a size of a frequency domain resource occupied by a first time-frequency resource block according to an embodiment of the present application;

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

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

Detailed Description

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

Example 1

Embodiment 1 illustrates a flow chart of first signaling, 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 this application receives a first signaling and a first signal in a first time-frequency resource block in step 101; a second signal is transmitted in a first empty resource block in step 102. Wherein the first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the first signaling is dynamic signaling.

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

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

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

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

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

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

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

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

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

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

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

In one embodiment, the first signaling indicates the first time-frequency resource block.

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

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

As an embodiment, the first signaling explicitly indicates a frequency domain resource occupied by the first time-frequency resource block, and implicitly indicates a time domain resource occupied by the first time-frequency resource block.

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 embodiment, the first signal is transmitted via a PC5 interface.

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

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

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

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

As an embodiment, the first set of bit blocks comprises a plurality of bit blocks.

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

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

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

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

As an embodiment, 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 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 embodiment said second signal is transmitted via a PC5 interface.

As an embodiment, the second signal is transmitted in Unicast (Unicast).

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

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

As an embodiment, the sentence said second signal carrying a second block of bits comprises: the second signal is output after all or part of binary bits in the second bit block 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 second signal carrying a second block of bits comprises: some or all of the binary bits in the second block of bits are used to generate the second signal.

As an embodiment, the sentence said second signal carrying a second block of bits comprises: all or a portion of the binary bits in the second block of bits are used to determine the first block of empty resources.

As an embodiment, the sentence said second signal carrying a second block of bits comprises: all or part of binary bits in the second bit block are used for determining frequency domain resources occupied by the first air interface resource block.

As an embodiment, said sentence said second signal carrying a second block of bits comprises: all or part of binary bits in the second bit block are used for determining code domain resources occupied by the first air interface resource block.

As an embodiment, said sentence said second signal carrying a second block of bits comprises: all or part of binary bits in the second bit block are used for determining frequency domain resources and code domain resources occupied by the first air interface resource block.

As an embodiment, said sentence said second signal carrying a second block of bits comprises: the second signal carries S1 sequences, the S1 being a positive integer; the second block of bits is used to determine the S1 sequences.

As a sub-embodiment of the foregoing embodiment, the second signal is an output of the S1 sequences after sequentially passing through a resource element mapper, multicarrier symbol generation, modulation and frequency up-conversion.

As a sub-embodiment of the above embodiment, the second bit block is used to determine each of the S1 sequences from a plurality of candidate sequences.

As a sub-embodiment of the above embodiment, said S1 is equal to 1.

As a sub-embodiment of the above embodiment, said S1 is greater than 1.

As a sub-embodiment of the above embodiment, the S1 sequences comprise pseudo-random (pseudo-random) sequences.

As a sub-embodiment of the above embodiment, the S1 sequences comprise Zadoff-Chu sequences.

As a sub-embodiment of the above embodiment, the S1 sequences include a low-PAPR (Peak-to-Average Power Ratio) sequence.

As an embodiment, the second bit block carries HARQ-ACK.

As an embodiment, the second bit block carries an ACK.

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

As an embodiment, the second bit block carries CSI (Channel Status information).

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

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

As an embodiment, the second bit block indicates whether each bit block in the first set of bit blocks is received correctly or not, respectively.

As an embodiment, the number of binary bits included in the second bit block increases with an increase in the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, when the size of the frequency domain resource occupied by the first time-frequency resource block is M1 subcarriers, the number of binary bits included in the second bit block is N1; when the size of the frequency domain resource occupied by the first time-frequency resource block is M2 subcarriers, the number of binary bits included in the second bit block is N2; m1, M2, N1 and N2 are respectively positive integers, wherein M2 is larger than M1, and N2 is not smaller than N1.

As an embodiment, the size of the frequency domain resource occupied by the first time-frequency resource block includes: the number of sub-channels occupied by the first time-frequency resource block in a frequency domain.

As an embodiment, the size of the frequency domain resource occupied by the first time-frequency resource block includes: the number of PRBs (Physical Resource blocks) occupied by the first time-frequency Resource Block in the frequency domain.

As an embodiment, the size of the frequency domain resource occupied by the first time-frequency resource block includes: the number of subcarriers occupied by the first time-frequency resource block in a frequency domain.

Example 2

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

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (sildelink) communication with the UE201, NG-RAN (next generation radio access network) 202,5gc (5G corenetwork )/EPC (Evolved Packet Core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management) 220, and internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The NG-RAN202 includes NR (New Radio ) node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive point), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UEs 201 include cellular phones, smart phones, session Initiation Protocol (SIP) phones, laptops, personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network equipment, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functioning devices. UE201 may also be referred to by those skilled in the art as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213.MME/AMF/SMF211 is a control node that handles signaling between UE201 and 5GC/EPC210. In general, MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem) and a Packet switching (Packet switching) service.

As an embodiment, the first node in the present application includes the UE201.

As an embodiment, the first node in this application includes the UE241.

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

As an embodiment, the second node in the present application includes the UE201.

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

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

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

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

As an embodiment, unicast (Unicast) transmission is supported between the UE201 and the UE241.

As an embodiment, broadcast (Broadcast) transmission is supported between the UE201 and the UE241.

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

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

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

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

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

As an embodiment, the sender of the second signal in this application includes the UE201.

As an embodiment, the receiver of the second signal in this application includes the UE241.

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 a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for 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 PHY301. Above the PHY301, a layer 2 (L2 layer) 305 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 handover support for a first communication node device between second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the 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. A RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second 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 communication node device and the second communication node device is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

For one embodiment, the first signaling is generated from the PHY301 or the PHY351.

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

For one embodiment, the first signal is generated from the PHY301 or the PHY351.

For one embodiment, the second signal is generated from the PHY301, or the PHY351.

For one embodiment, any of the third set of signals is generated from the PHY301, or the PHY351.

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

In 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 a controller/processor 475. The controller/processor 475 implements the functionality of the L2 layer. 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. The receive processor 456 and the multiple antenna receive processor 458 implement 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 streams from receiver 454. Receive processor 456 converts the received analog precoded/beamformed baseband multicarrier symbol stream 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 functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the 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. The 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. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, by the multi-antenna transmit processor 457, and then the transmit processor 468 modulates the resulting parallel streams into multi-carrier/single-carrier symbol streams, which are provided to the different antennas 452 via the transmitter 454 after analog precoding/beamforming in the multi-antenna transmit processor 457. 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 functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. 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 signaling and the first signal in the present application in the first time-frequency resource block in the present application; the second signal in this application is transmitted in the first resource block of the air interface in this application. The first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving the first signaling and the first signal in the present application in the first time-frequency resource block in the present application; the second signal in this application is transmitted in the first resource block of the air interface in this application. The first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting the first signaling and the first signal in the present application in the first time-frequency resource block in the present application; receiving the second signal in the present application in the first air interface resource block in the present application. The first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting the first signaling and the first signal in the present application in the first time-frequency resource block in the present application; receiving the second signal in the present application in the first air interface resource block in the present application. The first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

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

As 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 signaling and the first signal in the first block of time-frequency resources in 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 signaling and the first signal in this application in the first block of time and frequency resources in this application.

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

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 third set of signals in the third set of time-frequency resource blocks in this application; at least one of the antennas 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 third set of signals in this application in the third set of time-frequency resource blocks in this application.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the 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 which transmit two by two over the air interface. In fig. 5, the steps in blocks F51 to F57 are optional, respectively. The steps in blocks F51 and F52 in fig. 5 cannot exist simultaneously; the steps in any two of blocks F53, F54 and F55 in fig. 5 cannot exist simultaneously.

The second node U1, in step S5101, sends the second information block; transmitting a first information block in step S5102; receiving a first information block in step S5103; transmitting a first signaling and a first signal in a first time-frequency resource block in step S511; sending a third set of signals in a third set of time-frequency resource blocks in step S5104; in step S5105, a second signal is monitored in each air interface resource block in the fourth set of air interface resource blocks; in step S512, the second signal is received in a first air interface resource block.

The first node U2, receiving the second information block in step S5201; receiving a second information block in step S5202; receiving a first information block in step S5203; receiving a first information block in step S5204; transmitting the first information block in step S5205; receiving a first signaling and a first signal in a first time-frequency resource block in step S521; receiving a third set of signals in a third set of time-frequency resource blocks in step S5206; in step S522, a second signal is transmitted in the first empty resource block.

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

In embodiment 5, the first signaling includes scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

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

As an embodiment, the third node U3 is a base station.

As an embodiment, the third node U3 is a relay node.

As an 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.

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

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

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

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 embodiment, the first node in this application is an RSU.

As an embodiment, the first time-frequency resource block is used by the first node in this application to determine the first empty resource block.

As an embodiment, the first time-frequency resource block is used by the second node in this application to determine the first empty resource block.

As an example, the step in block F56 in fig. 5 exists, and the third set of time-frequency resource blocks includes a positive integer number of time-frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an example, the step in block F51 in fig. 5 exists, and the step in F52 does not exist.

As an example, the step in block F52 in fig. 5 exists, and the step in F51 does not exist.

As one embodiment, the method in a first node used for wireless communication includes:

receiving the second information block;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 is transmitted on a psch.

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

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

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

As an embodiment, the second information block explicitly indicates the first interval.

As an embodiment, the second information block implicitly indicates the first interval.

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

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

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

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

As an embodiment, the unit of the first interval is the time unit in this application.

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

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

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

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

As an embodiment, the target time unit is one time unit in a second set of time units, any time unit in the second set of time units comprising time domain resources that may be used for transmission of PSFCH; for any given time unit in the first set of time units, the target time unit is the earliest one of the second set of time units having a starting time later than the ending time of the given time unit and a time interval with the given time unit not less than the first interval.

As a sub-embodiment of the above embodiment, the second information block indicates the second set of time units.

As a sub-embodiment of the foregoing embodiment, associating any time unit in the first time unit set of the sentence with the target time unit comprises: for any given time unit in the first set of time units, the target time unit is the earliest one of the second set of time units having a starting time later than the ending time of the given time unit and a time interval with the given time unit not less than the first interval.

As an example, the step in block F57 in fig. 5 exists, and the method in the second node for wireless communication comprises:

monitoring the second signal in each air interface resource block in the fourth air interface resource block set respectively;

wherein the first air interface resource block is one air interface resource block in the fourth air interface resource block set, and the second node detects the second signal in the first air interface resource block; the fourth empty resource block set consists of positive integer empty resource blocks in P0 empty resource blocks, wherein P0 is a positive integer larger than 1; p0 time frequency resource blocks are respectively used for determining the P0 air interface resource blocks, and the P0 time frequency resource blocks are composed of all time frequency resource blocks in the first time frequency resource block and the third time frequency resource block set.

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, the second signal is judged not to be 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 a signal and performing a decoding operation; if the decoding is determined to be correct according to the CRC bit, judging 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 determines whether the second signal is transmitted according to coherent detection.

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

As one embodiment, the sentence monitoring the second signal comprises: and the second node determines that the second signal is sent in the first air interface resource block of the P0 air interface resource blocks according to coherent detection.

As one embodiment, the sentence monitoring the second signal comprises: and the second node determines that the second signal is sent in the first air interface resource block in the P0 air interface resource blocks according to the CRC.

As an embodiment, the fourth set of null resource blocks includes only the first null resource block.

As an embodiment, the fourth set of air interface resource blocks includes at least one air interface resource block, except for the first air interface resource block, in the P0 air interface resource blocks.

As an embodiment, the fourth set of air interface resource blocks includes all air interface resource blocks in the P0 air interface resource blocks.

As an embodiment, any air interface resource block in the P0 air interface resource blocks includes a time domain resource and a frequency domain resource.

As an embodiment, any one of the P0 air interface resource blocks includes a time frequency resource and a code domain resource.

As an embodiment, any one of the P0 air interface resource blocks includes a PSFCH resource (resource).

As an embodiment, any air interface resource block in the P0 air interface resource blocks includes multiple PSFCH resources.

As an embodiment, the P0 air interface resource blocks occupy the same time domain resource.

As an embodiment, any two air interface resource blocks in the P0 air interface resource blocks occupy mutually orthogonal frequency domain resources.

As an embodiment, two air interface resource blocks in the P0 air interface resource blocks occupy the same time-frequency resource and different code domain resources.

As an example, the step in block F53 in fig. 5 exists, and the steps in F54 and F55 do not exist.

As an example, the step in block F54 in fig. 5 exists, and the steps in F53 and F55 do not exist.

As an example, the step in block F55 in fig. 5 exists, and the steps in F53 and F54 do not exist.

receiving the first information block;

wherein the first information block indicates K0, the K0 is a positive integer greater than 1, and the K in this application is not greater than the K0.

As one embodiment, the method in a first node used for wireless communication comprises:

transmitting the first information block;

As an embodiment, K0 is the maximum number of CBGs that the first node can receive in one psch.

As an example, the K is equal to the K0.

As one embodiment, the K is less than the K0.

As an embodiment, when the second bit block includes the K binary bits in this application, the second bit block includes K0 binary bits, which are a subset of the K0 binary bits.

As a sub-embodiment of the foregoing embodiment, when the K0 is greater than the K, a value of any binary bit of the K0 binary bits other than the K binary bits is set as NACK.

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

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

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

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

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

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

As an embodiment, the first signaling indicates a position of the K binary bits in the K0 binary bits.

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

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

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

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

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

As an embodiment, the first signaling is transmitted on a PDCCH (Physical Downlink 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 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, any one of the third set of signals is transmitted on a PSSCH.

As an embodiment, any of the signals in the third set of signals is transmitted on the PSCCH.

As an embodiment, a portion of any signal in the third set of signals is transmitted on PSCCH and another portion is transmitted on PSCCH.

Example 6

Embodiment 6 illustrates a schematic diagram of a given time-frequency resource block according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, the given time-frequency resource block is any one of the first time-frequency resource block, the third set of time-frequency resource blocks, and the time-frequency resource block occupied by the first empty resource block in the time-frequency domain.

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

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

As an embodiment, the given time-frequency resource block is a time-frequency resource block occupied by the first air interface resource block in a time-frequency domain.

As an embodiment, the given time-frequency Resource block includes a positive integer number of REs (Resource elements) in a time-frequency domain.

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

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

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

As an embodiment, the multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

As an embodiment, the given time-frequency resource block is contiguous in the time domain.

As an embodiment, the given time-frequency resource block is contiguous in the frequency domain.

Example 7

Embodiment 7 illustrates a schematic diagram of resource mapping of a first signaling and a first signal in a first time-frequency resource block according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first signaling is transmitted in a first sub-block of time-frequency resources in the first block of time-frequency resources, and the first signal is transmitted in a second sub-block of time-frequency resources in the first block of time-frequency resources; the first time frequency resource sub-block and the second time frequency resource sub-block are orthogonal to each other.

In one embodiment, the first time-frequency resource subblock comprises a positive integer number of REs.

As an embodiment, the second sub-block of time-frequency resources comprises a positive integer number of REs.

As an embodiment, there is not one RE belonging to both the first time-frequency resource sub-block and the second time-frequency resource sub-block.

In an embodiment, the first time-frequency resource sub-block occupies a part of time-domain resources in the first time-frequency resource block in the time domain.

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

In one embodiment, the first time-frequency resource sub-block occupies a part of frequency domain resources in the first time-frequency resource block in the frequency domain.

In one embodiment, the first time-frequency resource sub-block occupies the lowest positive integer number of sub-channels in the first time-frequency resource block in the frequency domain.

As an embodiment, the second time-frequency resource sub-block includes all REs of the first time-frequency resource block that do not belong to the first time-frequency resource sub-block.

Example 8

Embodiment 8 illustrates a schematic diagram of resource mapping of a first signaling and a first signal in a first time-frequency resource block according to an embodiment of the present application; as shown in fig. 8. In embodiment 8, the first signaling is transmitted in a first time-frequency resource sub-block; the first time-frequency resource sub-block occupies all frequency domain resources in the first time-frequency resource block.

Example 9

Embodiment 9 illustrates a schematic diagram of resource mapping of a first signaling and a first signal in a first time-frequency resource block according to an embodiment of the present application; as shown in fig. 9. In embodiment 9, the first signaling is transmitted in a first time-frequency resource sub-block; the first time-frequency resource sub-block occupies all time-domain resources in the first time-frequency resource block.

Example 10

Embodiment 10 illustrates a schematic diagram in which a first time-frequency resource block is used to determine a first null resource block according to an embodiment of the present application; as shown in fig. 10.

In one embodiment, the first resource block includes a time domain resource and a frequency domain resource.

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

As an embodiment, the code domain resource includes one or more of a pseudo random sequence, a low peak-to-average ratio sequence, a cyclic shift amount (cyclic shift), an OCC, an orthogonal sequence (orthogonal sequence), a frequency domain orthogonal sequence or a time domain orthogonal sequence.

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

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

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

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

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

As an embodiment, the first null resource block includes 2 consecutive PRBs in the frequency domain.

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

For an embodiment, the first empty resource block includes one PSFCH resource.

As an embodiment, the first empty resource block includes a plurality of PSFCH resources.

As an embodiment, the first empty resource block is reserved for the PSFCH.

As one embodiment, the first empty resource block is reserved for HARQ-ACK of a secondary link.

As an embodiment, the first null resource block is reserved for HARQ-ACK for V2X.

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

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

As an embodiment, a start time of the first air interface resource block is later than an end time of the first time-frequency resource block.

As an embodiment, the first air interface resource block is one air interface resource block in a first air interface resource block set, and the first air interface resource block set includes a plurality of air interface resource blocks; the second block of bits is used to determine the first set of null resource blocks from the first set of null resource blocks.

As a sub-embodiment of the foregoing embodiment, the number of air interface resource blocks included in the first air interface resource block set is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As a sub-embodiment of the foregoing embodiment, the number of air interface resource blocks included in the first set of air interface resource blocks is related to the number of subchannels occupied by the first time-frequency resource block in the frequency domain.

As a sub-embodiment of the foregoing embodiment, the number of air interface resource blocks included in the first set of air interface resource blocks is equal to the number of subchannels occupied by the first time-frequency resource block in the frequency domain.

As an embodiment, the time domain resource occupied by the first time-frequency resource block is used to determine the time domain resource occupied by the first air interface resource block.

As an embodiment, the frequency domain resource occupied by the first time-frequency resource block is used to determine the frequency domain resource occupied by the first air interface resource block.

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

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

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

Example 11

Embodiment 11 illustrates a schematic diagram in which a first time-frequency resource block is used for determining a first null resource block according to an embodiment of the present application; as shown in fig. 11. In embodiment 11, a first time unit is a time unit to which the first time-frequency resource block belongs in a time domain, and a first sub-channel is a sub-channel (sub-channel) occupied by the first time-frequency resource block; the pair (the first time unit, the first subchannel) is used to determine the first block of empty resources.

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

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

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

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

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

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

As an example, a pair (the first time unit, the first subchannel) is one of P1 candidate pairs, P1 is a positive integer greater than 1, any of the P1 candidate pairs comprises (one time unit, one subchannel); the first air interface resource block belongs to a first air interface resource block group, the first air interface resource block group is a candidate air interface resource block group in P2 candidate air interface resource block groups, P2 is a positive integer greater than 1, and any candidate air interface resource block group in the P2 candidate air interface resource block groups comprises a positive integer of candidate air interface resource blocks; any candidate pair in the P1 candidate pairs corresponds to one candidate air interface resource block group in the P2 candidate air interface resource block groups; the first air interface resource block group is a candidate air interface resource block group corresponding to the pair (the first time unit, the first sub-channel) in the P2 candidate air interface resource block groups.

As a sub-embodiment of the foregoing embodiment, the first air interface resource block group is composed of the first air interface resource block.

As a sub-embodiment of the foregoing embodiment, the first air interface resource block group includes multiple air interface resource blocks.

As a sub-embodiment of the foregoing embodiment, the first air interface resource block group includes multiple air interface resource blocks, and any two air interface resource blocks in the multiple air interface resource blocks occupy the same time-frequency resource and different code domain resources.

As a sub-embodiment of the foregoing embodiment, the first air interface resource block group includes multiple air interface resource blocks, where two air interface resource blocks in the multiple air interface resource blocks occupy mutually orthogonal frequency domain resources.

As a sub-embodiment of the foregoing embodiment, the first resource block group includes a plurality of resource blocks, and an ID (IDentity) of the first node is used to determine the first resource block from the first resource block group.

As a sub-embodiment of the above embodiment, the first air interface resource block group includes a plurality of air interface resource blocks, and the ID of the sender of the first signal is used to determine the first air interface resource block from the first air interface resource block group.

As a sub-embodiment of the foregoing embodiment, the first air interface resource block group includes a plurality of air interface resource blocks; a target recipient of the first signal comprises a first set of nodes comprising a positive integer number of nodes, the first node being one of the first set of nodes; the index of the first node in the first set of nodes is used to determine the first group of empty resource blocks from the first group of empty resource blocks.

As a sub-embodiment of the above embodiment, the second bit block is used to determine the first air interface resource block from the first air interface resource block group.

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

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

Example 12

Embodiment 12 illustrates a schematic diagram in which a first time-frequency resource block is used for determining a first null resource block according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the first time-frequency resource block occupies Q subchannels in the frequency domain, where Q is a positive integer greater than 1; the Q sub-channels are respectively used for determining Q air interface resource blocks which are continuous in a frequency domain; the first air interface resource block comprises Q1 air interface resource blocks in the Q air interface resource blocks, and Q1 is a positive integer not greater than Q. In fig. 12, the indexes of the Q subchannels and the Q air interface resource blocks are # 0., # (Q-1), respectively.

As an embodiment, the Q1 air interface resource blocks are continuous in the frequency domain.

As an embodiment, the first air interface resource block is composed of the Q1 air interface resource blocks.

As an example, Q1 is equal to Q.

As one embodiment, the Q1 is less than the Q.

As an embodiment, the Q air interface resource blocks belong to the same time unit in the time domain.

As an embodiment, the Q air interface resource blocks occupy the same time domain resource.

As an embodiment, the time domain resource occupied by the first time-frequency resource block is used to determine the time domain resource occupied by any one of the Q air interface resource blocks.

As an embodiment, the Q subchannels are respectively used to determine frequency-domain resources occupied by the Q air interface resource blocks.

As an embodiment, the Q subchannels are respectively used to determine frequency domain resources and code domain resources occupied by the Q air interface resource blocks.

As an embodiment, for any given air interface resource block in the Q air interface resource blocks, the time domain resource occupied by the first time-frequency resource block and the sub-channel corresponding to the given air interface resource block in the Q sub-channels are commonly used to determine the frequency domain resource occupied by the given air interface resource block.

As an embodiment, for any given air interface resource block in the Q air interface resource blocks, the time domain resource occupied by the first time-frequency resource block and the subchannel corresponding to the given air interface resource block in the Q subchannels are jointly used to determine the frequency domain resource and the code domain resource occupied by the given air interface resource block.

As an embodiment, the first time-frequency resource block belongs to a first time unit in a time domain, Q reference pairs and the Q subchannels are in one-to-one correspondence, and any reference pair of the Q reference pairs includes (the first time unit, a corresponding subchannel); the Q reference pairs are used to determine the Q air interface resource blocks, respectively.

As a sub-embodiment of the above embodiment, any one of the Q reference pairs is one of the P1 candidate pairs in embodiment 11; the Q air interface resource blocks belong to Q air interface resource block groups, respectively, and any one of the Q air interface resource block groups is one of the P2 candidate air interface resource block groups in embodiment 11; the Q air interface resource block groups are candidate air interface resource block groups corresponding to the Q reference pairs in the P2 candidate air interface resource block groups, respectively.

Example 13

Embodiment 13 illustrates a schematic diagram of whether a second bit block includes K binary bits according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, the first set of bit blocks comprises the K bit blocks, the K binary bits indicating whether the K bit blocks are received correctly, respectively; when the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than a first threshold, the second bit block comprises the K binary bits; when the size of the frequency domain resource occupied by the first time-frequency resource block is smaller than the first threshold, the second bit block does not include the K binary bits.

As an embodiment, when the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the first threshold, the second bit block indicates whether the K bit blocks are correct or not, respectively; when the size of the frequency domain resource occupied by the first time-frequency resource block is smaller than the first threshold, the second bit block only indicates that each bit block of the K bit blocks is correctly received, or at least one bit block of the K bit blocks is incorrectly received.

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

As an embodiment, the unit of the first threshold is a sub-channel (sub-channel).

As an embodiment, the unit of the first threshold is a PRB.

As an embodiment, the first threshold is preconfigured.

As an embodiment, the first threshold is configured for higher layer (higher layer) signaling.

As an embodiment, the first threshold is configured for RRC signaling.

As an embodiment, the second block of bits comprises first bits; when the first bit indicates ACK, the second bit block indicates that each of the K bit blocks is correctly received; when the first bit indicates a NACK, the second bit block indicates that at least one of the K bit blocks was not correctly received.

As an embodiment, when the second block of bits does not comprise the K binary bits and the second block of bits indicates that the first set of blocks of bits was not correctly received, the second block of bits does not comprise information of which blocks of bits of the K blocks of bits were not correctly received.

As an embodiment, any one of the K bit blocks is a CBG.

As an embodiment, the first set of bit blocks consists of the K bit blocks.

As an embodiment, the first signaling indicates the K.

As an embodiment, when the second bit block includes the K binary bits, the first air interface resource block includes K1 air interface resource sub-blocks; the K binary bits are divided into K1 bit groups, where K1 is a positive integer not greater than K and greater than 1, and the K1 bit groups are transmitted in the K1 air interface resource subblocks respectively.

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

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

As a sub-embodiment of the foregoing embodiment, the K1 air interface resource sub-blocks respectively include K1 PSFCH resources.

As a sub-embodiment of the foregoing embodiment, the number of binary bits in the K binary bits included in any two bit groups of the K1 bit groups is equal.

As a sub-embodiment of the foregoing embodiment, the number of binary bits in the K binary bits included in any two bit groups except the last bit group in the K1 bit groups is equal.

Example 14

Embodiment 14 illustrates a schematic diagram of a third set of time-frequency resource blocks and a third set of signals according to an embodiment of the present application; as shown in fig. 14. In embodiment 14, the third set of time-frequency resource blocks includes P time-frequency resource blocks, the third set of signals includes P signals, P is a positive integer greater than 1; the P signals are transmitted in the P time-frequency resource blocks, respectively. In fig. 14, the indices of the P time-frequency resource blocks and the P signals are # 0. # 1, respectively.

As an embodiment, the binary bits in the second bit block sub-block are divided into P bit subgroups; the P bit subsets respectively indicate whether the bit blocks carried by the P signals are correctly received.

As a sub-embodiment of the foregoing embodiment, any one of the P bit sub-groups indicates whether each bit block carried by the corresponding signal is correctly received.

As a sub-embodiment of the foregoing embodiment, any bit sub-group in the P bit sub-groups indicates that each bit block carried by the corresponding signal is correctly received or that at least one bit block carried by the corresponding signal is not correctly received.

As a sub-embodiment of the foregoing embodiment, any one of the P bit sub-groups respectively indicates whether each bit block carried by the corresponding signal is correctly received.

As an embodiment, the sender of any given signal in the third set of signals is the sender of the first signal.

As an embodiment, the sender of any given signal in the third set of signals and the sender of the first signal are QCLs (Quasi Co-Located).

As an embodiment, the specific definition of QCL is described in section 4.4 of 3gpp ts38.211.

As an embodiment, the presence of one signal in the third set of signals is later in the time domain than the first signal.

As an embodiment, there is one signal in the third set of signals that is earlier in the time domain than the first signal.

As an embodiment, the sentence where any signal in the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks comprises: any signal in the third signal set is output after all or part of bits in the positive integer number of bit blocks in the third 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, the sentence wherein any signal in the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks comprises: for any given signal in the third set of signals, all or a portion of the bits in a positive integer number of bit blocks in the third set of bit blocks are used to generate the given signal.

As an embodiment, any signal in the third set of signals is a baseband signal.

As one embodiment, any signal in the third set of signals is a wireless signal.

As an embodiment, any given signal in the third set of signals includes a given signaling and a given sub-signal, the given sub-signal carries a positive integer number of bit blocks in the third set of bit blocks, and the given signaling includes scheduling information of the given sub-signal.

As a sub-embodiment of the above embodiment, the given signaling is dynamic signaling.

As a sub-embodiment of the above embodiment, the given signaling comprises SCI.

As a sub-embodiment of the above embodiment, the given signaling comprises one or more fields in one SCI.

As a sub-embodiment of the above embodiment, the given signaling indicates that the first time-frequency resource block is used for determining the first empty resource block.

As an embodiment, the third set of bit blocks comprises a positive integer number of bit blocks, any bit block comprised by the third set of bit blocks comprises a positive integer number of binary bits.

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

As an embodiment, the third set of bit blocks comprises a plurality of bit blocks.

As an embodiment, there is one bit block in the third set of bit blocks that is one TB.

As an embodiment, there is one bit block in the third bit block set that is one CB.

As an embodiment, one bit block of the third set of bit blocks is a CBG.

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

As an embodiment, the first node self-selects the first time-frequency resource block from the third set of time-frequency resource blocks and the first time-frequency resource block to be used for determining the first empty port resource block.

Example 15

Embodiment 15 illustrates a schematic diagram of a third set of time-frequency resource blocks and a third set of signals according to an embodiment of the present application; as shown in fig. 15. In embodiment 15, the third set of time-frequency resource blocks comprises only one time-frequency resource block, and the third set of signals comprises only one signal; said one signal carrying said third set of bit blocks.

Example 16

Embodiment 16 illustrates a schematic diagram of a first set of time units and a target time unit according to an embodiment of the present application; as shown in fig. 16. In embodiment 16, any time-frequency resource block in the third set of time-frequency resource blocks belongs to one time unit in the first set of time units in a time domain, the first time-frequency resource block belongs to one time unit in the first set of time units in the time domain, the first air interface resource block belongs to the target time unit in the time domain, and any time unit in the first set of time units is associated with the target time unit.

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 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 set of time units includes a positive integer number of time units.

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

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 not contiguous in the time domain.

As one embodiment, any time unit in the first set of time units is orthogonal to the target time unit.

As an embodiment, the start time of the target time unit is later than the end time of any time unit in the first set of time units.

As an embodiment, the third set of time-frequency resource blocks includes a plurality of time-frequency resource blocks, and any two of the plurality of time-frequency resource blocks belong to different time units in the first set of time units in a time domain.

As an embodiment, the third set of time-frequency resource blocks includes a plurality of time-frequency resource blocks, and there are two time-frequency resource blocks in the plurality of time-frequency resource blocks that belong to the same time unit in the first set of time units in the time domain.

As an embodiment, any one of the third set of time frequency resource blocks and the first time frequency resource block belong to different time units in the first set of time units in the time domain.

As an embodiment, there is one time-frequency resource block in the third set of time-frequency resource blocks, and the first time-frequency resource block belongs to the same time unit in the first set of time units in the time domain.

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

As an embodiment, the first air interface resource block occupies a latest positive integer number of multicarrier symbols in the target time unit in a time domain.

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

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

As one embodiment, associating any time unit in the first set of time units in the sentence with the target time unit comprises: for any given time cell in the first set of time cells, the PSFCH corresponding to the PSSCH transmitted in the given time cell cannot be transmitted in time domain resources other than the target time cell.

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

Example 17

Embodiment 17 illustrates a schematic diagram of whether a second bit block comprises a second bit sub-block according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, the second sub-block of bits indicates whether the third set of blocks of bits was received correctly; when the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than a second threshold value, the second bit block comprises the second bit sub-block; and when the size of the frequency domain resource occupied by the first time-frequency resource block is smaller than the second threshold, the second bit block does not comprise the second bit block sub-block.

As an embodiment, when the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the second threshold, the second bit block indicates whether the third bit block set is correctly received; when the size of the frequency domain resource occupied by the first time-frequency resource block is smaller than the second threshold, whether the second bit block and the third bit block set are correctly received is irrelevant.

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

As an embodiment, the unit of the second threshold is a sub-channel (sub-channel).

As an embodiment, the unit of the second threshold is PRB.

As an embodiment, the second threshold is preconfigured.

As an embodiment, the second threshold is configured for higher layer (higher layer) signaling.

As an embodiment, the second threshold is configured by RRC signaling.

As an embodiment, the second sub-block of bits comprises a positive integer number of binary bits.

As an embodiment, the second sub-block of bits comprises only 1 binary bit.

As an embodiment, the second sub-block of bits comprises a plurality of binary bits.

As an embodiment, the second sub-block of bits indicates whether each block of bits in the third set of blocks of bits was received correctly.

As an embodiment, the second bit sub-block indicates whether each bit block in the third set of bit blocks is received correctly or not, respectively.

As an embodiment, the second sub-block of bits indicates that each block of bits in the third set of blocks of bits was received correctly or that at least one block of bits in the third set of blocks of bits was not received correctly.

As an embodiment, the second sub-block of bits comprises a plurality of binary bits; when the second bit block comprises the second bit sub-block, the first air interface resource block comprises K2 air interface resource sub-blocks, the second bit sub-block is divided into K2 bit groups, and K2 is a positive integer greater than 1; the K2 bit groups are transmitted in the K2 air interface resource sub-blocks, respectively.

As a sub-embodiment of the foregoing embodiment, the K2 air interface resource sub-blocks respectively include K2 PSFCH resources.

As a sub-embodiment of the foregoing embodiment, the number of binary bits in the second bit sub-block included in any two bit groups of the K2 bit groups is equal.

As a sub-embodiment of the foregoing embodiment, the number of binary bits in the second bit sub-block included in any two bit groups except the last bit group in the K2 bit groups is equal.

Example 18

Embodiment 18 illustrates a schematic position diagram of a time unit in a first time unit set, to which a first time-frequency resource block belongs in a time domain according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, the position of the time unit in the first set of time units to which the first block of time-frequency resources belongs in the time domain is a default.

As an embodiment, the default includes: no signaling indication is required.

As an embodiment, the default includes: no dynamic signaling indication is required.

As an embodiment, the default includes: no higher layer signaling is required to indicate.

As an embodiment, the defaults include: is preconfigured.

As an embodiment, a time unit to which the first time-frequency resource block belongs in the time domain is an earliest time unit in the first time unit set.

Example 19

Embodiment 19 illustrates a schematic position diagram of a time unit in a first time unit set, to which a first time-frequency resource block belongs in a time domain according to an embodiment of the present application; as shown in fig. 19. In embodiment 19, the time unit to which the first time/frequency resource block belongs in the time domain is the latest time unit in the first time unit set.

Example 20

Embodiment 20 illustrates a schematic diagram of a relationship between a size of a frequency domain resource occupied by a first time-frequency resource block and a size of a frequency domain resource occupied by a time-frequency resource block in a third time-frequency resource block set according to an embodiment of the present application; as shown in fig. 20. In embodiment 20, a fourth set of time-frequency resource blocks is composed of the first set of time-frequency resource blocks and the third set of time-frequency resource blocks, where the first set of time-frequency resource blocks is a time-frequency resource block occupying the most frequency-domain resources in the fourth set of time-frequency resource blocks.

As an embodiment, a size of a frequency domain resource occupied by any time-frequency resource block except the first time-frequency resource block in the fourth set of time-frequency resource blocks is smaller than a size of a frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the size of the frequency domain resource occupied by P3 time frequency resource blocks in the fourth set of time frequency resource blocks is equal to the size of the frequency domain resource occupied by the first time frequency resource block, P3 is a positive integer greater than 1, and the first time frequency resource block is one time frequency resource block of the P3 time frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource block is an earliest time-frequency resource block of the P3 time-frequency resource blocks.

As a sub-embodiment of the foregoing embodiment, the first time-frequency resource block is a latest time-frequency resource block of the P3 time-frequency resource blocks.

Example 21

Embodiment 21 illustrates a schematic diagram of a first signaling indicating that a first time-frequency resource block is used for determining a first empty resource block according to an embodiment of the present application; as shown in fig. 21.

As an embodiment, a fourth set of time-frequency resource blocks consists of the first set of time-frequency resource blocks and the third set of time-frequency resource blocks, and the first signaling indicates from the fourth set of time-frequency resource blocks that the first time-frequency resource block is used for determining the first empty resource block.

In one embodiment, the first signaling explicitly indicates that the first time-frequency resource block is used to determine the first empty resource block.

As an embodiment, the first signaling implicitly indicates that the first time-frequency resource block is used to determine the first empty resource block.

Example 22

Embodiment 22 illustrates a schematic diagram of a size of a frequency domain resource occupied by a first air interface resource block and a size of a frequency domain resource occupied by a first time-frequency resource block according to an embodiment of the present application; as shown in fig. 22.

As an embodiment, when the size of the frequency domain resource occupied by the first time-frequency resource block is M1 subcarriers, the size of the frequency domain resource occupied by the first air interface resource block is N3 subcarriers; when the size of the frequency domain resource occupied by the first time-frequency resource block is M2 subcarriers, the size of the frequency domain resource occupied by the first air interface resource block is N4 subcarriers; m1, M2, N3 and N4 are respectively positive integers, wherein M2 is larger than M1, and N4 is not smaller than N3.

As an embodiment, the size of the frequency domain resource occupied by the first empty resource block increases with the increase of the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the size of the frequency domain resource occupied by the first air interface resource block is linearly related to the number of the sub-channels occupied by the first time-frequency resource block.

As an embodiment, the number of frequency domain resource blocks occupied by the first empty resource block and the number of subchannels occupied by the first time-frequency resource block are linearly related.

As an embodiment, the number of frequency domain resource blocks occupied by the first empty resource block is equal to the number of subchannels occupied by the first time-frequency resource block.

As an embodiment, one of the frequency domain resource blocks is a frequency domain resource occupied by one PSFCH resource.

As an embodiment, one of the frequency domain resource blocks includes a positive integer number of consecutive subcarriers.

As an embodiment, one of the frequency domain resource blocks comprises a positive integer number of consecutive PRBs.

Example 23

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

In embodiment 23, the first receiver 2301 receives first signaling and a first signal in a first time-frequency resource block; the first transmitter 2302 transmits a second signal in a first null resource block.

In embodiment 23, the first signaling includes scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the first set of bit-blocks comprises K bit-blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resources occupied by the first time-frequency resource block.

For one embodiment, the first receiver 2301 receives a third set of signals in a third set of time-frequency resource blocks; wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the position of the time unit in the first time unit set to which the first time/frequency resource block belongs in the time domain is default.

As an embodiment, the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the size of the frequency domain resource occupied by any time-frequency resource block in the third time-frequency resource block set.

As an embodiment, the first signaling indicates that the first time-frequency resource block is used for determining the first null resource block.

As an embodiment, the size of the frequency domain resource occupied by the first air interface resource block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

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

Example 24

Embodiment 24 illustrates a block diagram of a processing apparatus used in a second node device according to an embodiment of the present application; as shown in fig. 24. In fig. 24, the processing means 2400 in the second node device includes a second transmitter 2401 and a second receiver 2402.

In embodiment 24, the second transmitter 2401 transmits the first signaling and the first signal in the first time-frequency resource block; the second receiver 2402 receives a second signal in the first null resource block.

In embodiment 24, the first signaling comprises scheduling information of the first signal; the first signal carries a first set of bit blocks; the first time-frequency resource block is used to determine the first air interface resource block; the second signal carries a second block of bits indicating whether the first set of blocks of bits was received correctly; the second bit block comprises a positive integer number of binary bits, and the number of the binary bits included in the second bit block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, the first set of bit blocks comprises K bit blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

For one embodiment, the second transmitter 2401 transmits a third set of signals in a third set of time-frequency resource blocks; wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

As an embodiment, a position of a time unit in the first time unit set to which the first time-frequency resource block belongs in the time domain is a default.

As an embodiment, the first signaling indicates that the first block of time-frequency resources is used to determine the first block of empty ports resources.

As an embodiment, the size of the frequency domain resource occupied by the first empty resource block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

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

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

As an example, the second receiver 2402 includes at least one of { antenna 420, receiver 418, receive processor 470, multi-antenna receive processor 472, controller/processor 475, memory 476} in example 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 foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software functional modules, and the present application is not limited to any specific combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, communication module on the unmanned aerial vehicle, remote control aircraft, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle Communication equipment, wireless sensor, the network card, thing networking terminal, the RFID terminal, NB-IOT terminal, MTC (Machine Type Communication) terminal, EMTC (enhanced MTC) terminal, the data card, the network card, vehicle Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or the system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point), and other wireless communication devices.

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

Claims

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

2. The first node apparatus of claim 1, wherein the first set of bit blocks comprises K bit blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resources occupied by the first time-frequency resource block.

3. The first node device of claim 1 or 2, wherein the first receiver receives a third set of signals in a third set of time-frequency resource blocks; wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

4. The first node device of claim 3, wherein a position in the first set of time units of a time domain to which the first block of time-frequency resources belongs is a default.

5. The first node device of claim 3, wherein the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the size of the frequency domain resource occupied by any time-frequency resource block in the third set of time-frequency resource blocks.

6. The first node device of claim 1 or 2, wherein the first signalling indicates that the first time-frequency resource block is used to determine the first empty resource block.

7. The first node device of claim 1 or 2, wherein the size of the frequency domain resource occupied by the first air interface resource block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

9. The second node apparatus of claim 8, comprising:

the first set of bit blocks comprises K bit blocks, K being a positive integer greater than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

10. The second node device of claim 8 or 9, wherein the second transmitter 2401 transmits a third set of signals in a third set of time-frequency resource blocks; wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

11. The second node device of claim 10, wherein a position of a time unit in the first set of time units to which the first block of time-frequency resources belongs in a time domain is a default.

12. The second node apparatus in claim 10, wherein the size of the frequency domain resource occupied by the first time-frequency resource block is not smaller than the size of the frequency domain resource occupied by any time-frequency resource block in the third set of time-frequency resource blocks.

13. A second node device according to claim 8 or 9, wherein the first signalling indicates that the first block of time frequency resources is used to determine the first block of empty ports resources.

14. The second node device of claim 8 or 9, wherein the size of the frequency domain resource occupied by the first air interface resource block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

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

transmitting a second signal in the first air interface resource block;

16. The method in a first node according to claim 15, wherein said first set of bit blocks comprises K bit blocks, K being a positive integer larger than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resources occupied by the first time-frequency resource block.

17. A method in a first node according to claim 15 or 16, comprising:

wherein the third set of time-frequency resource blocks comprises a positive integer number of time-frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one signal in the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

18. The method in a first node according to claim 17, characterised in that the position in the first set of time units of the time domain to which the first block of time-frequency resources belongs is default.

19. The method in a first node according to claim 17, characterised in that the size of the frequency domain resources occupied by the first time frequency resource block is not smaller than the size of the frequency domain resources occupied by any time frequency resource block in the third set of time frequency resource blocks.

20. A method in a first node according to claim 15 or 16, characterised in that the first signalling indicates that the first block of time frequency resources is used to determine the first block of empty ports resources.

21. The method in the first node according to claim 15 or 16, characterised in that the size of the frequency domain resources occupied by the first air interface resource block is related to the size of the frequency domain resources occupied by the first time frequency resource block.

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

receiving a second signal in a first air interface resource block;

23. The method in the second node according to claim 22, wherein the first set of bit blocks comprises K bit blocks, K being a positive integer larger than 1; the K binary bits respectively indicate whether the K bit blocks are correctly received, and whether the second bit blocks comprise the K binary bits is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

24. A method in a second node according to claim 22 or 23, comprising:

wherein the third set of time frequency resource blocks comprises a positive integer number of time frequency resource blocks; the third set of signals comprises a positive integer number of signals, any one of the third set of signals carries a positive integer number of bit blocks in a third set of bit blocks; any time-frequency resource block in the third time-frequency resource block set belongs to one time unit in a first time unit set in a time domain, the first time-frequency resource block belongs to one time unit in the first time unit set in the time domain, the first air-interface resource block belongs to a target time unit in the time domain, and any time unit in the first time unit set is associated with the target time unit; the second bit sub-block indicates whether the third bit block set is correctly received, and whether the second bit block comprises the second bit sub-block is related to the size of the frequency domain resource occupied by the first time-frequency resource block.

25. The method in the second node according to claim 24, wherein the position in the first set of time units of the time unit to which the first block of time-frequency resources belongs in the time domain is default.

26. The method in a second node according to claim 24, characterised in that the size of the frequency domain resources occupied by said first time frequency resource block is not smaller than the size of the frequency domain resources occupied by any time frequency resource block in said third set of time frequency resource blocks.

27. A method in a second node according to claim 22 or 23, characterised in that the first signalling indicates that the first block of time frequency resources is used to determine the first block of empty ports resources.

28. A method in a second node according to claim 22 or 23, characterised in that the size of the frequency domain resources occupied by the first air interface resource block is related to the size of the frequency domain resources occupied by the first time frequency resource block.