WO2022041811A1

WO2022041811A1 - Method and device used in a node for wireless communication

Info

Publication number: WO2022041811A1
Application number: PCT/CN2021/089996
Authority: WO
Inventors: 刘铮; 杨中志
Original assignee: 上海移远通信技术股份有限公司
Priority date: 2020-08-28
Filing date: 2021-04-26
Publication date: 2022-03-03
Also published as: CN112437410A; CN112437410B

Abstract

Disclosed in the present application are a method and device used in a node for wireless communication. A first transmitter transmits a first signaling and a first signal in a first time-frequency resource pool, the first signal carrying a first bit block; and determines whether a second signaling and a third signal are transmitted in a third time-frequency resource pool; a first receiver monitors a second signal in a second time-frequency resource pool, the second signal indicating whether the first bit block is correctly received; when a first condition is satisfied, the first transmitter determines that the second signaling and the third signal are transmitted in the third time-frequency resource pool; when a second condition is satisfied, the first transmitter gives up transmitting the second signaling in the third time-frequency resource pool, and the first transmitter determines to transmit the third signal in the third time-frequency resource pool; and when a third condition is satisfied, the first transmitter gives up transmitting the second signaling and the third signal in the third time-frequency resource pool.

Description

A method and apparatus used in a node for wireless communication

technical field

The present application relates to a transmission method and apparatus in a wireless communication system, and in particular, to a transmission method and apparatus related to a side link (Sidelink) in wireless communication.

Background technique

The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios place different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, at the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network, Radio Access Network) #72 plenary meeting, it was decided that the new air interface technology (NR, New Radio) (or Fifth Generation, 5G) to conduct research, passed NR's WI (Work Item, work item) at the 3GPP RAN#75 plenary meeting, and began to standardize NR.

For the rapidly developing Vehicle-to-Everything (V2X) business, 3GPP has initiated standard formulation and research work under the NR framework. At present, 3GPP has completed the formulation of requirements for 5G V2X services, and has written into the standard TS22.886. 3GPP has defined 4 Use Case Groups for 5G V2X services, including: Automatic Queue Driving (Vehicles Platnooning), support Extended Sensors, Semi/Fully Autonomous Driving (Advanced Driving) and Remote Driving (Remote Driving). NR-based V2X technology research has been launched at the 3GPP RAN#80 plenary session.

SUMMARY OF THE INVENTION

For the channel control of NR V2X, 3GPP has agreed to introduce two-stage SCI (Sidelink Control Information, secondary link control information). Among them, the first-stage SCI (1st-stage SCI) is used for channel sensing (Channel Sensing) and scheduling the second-stage SCI (2nd-stage SCI); the first-stage SCI and the second-stage SCI are jointly used for scheduling in the corresponding The data (Data) transmitted on the PSSCH (Physical Sidelink Shared Channel, Physical Secondary Link Shared Channel). When data is retransmitted because it was not received correctly, some fields in the SCI do not need to be dynamically updated compared to the initial transmission or the previous retransmission.

In view of the above problems, the present application discloses a solution. It should be noted that in the description of this application, only the NR V2X scenario is used as a typical application scenario or example; this application is also applicable to other scenarios other than NR V2X that face similar problems, and similar NR V2X scenarios can also be obtained. technical effects in . In addition, using a unified solution for different scenarios (including but not limited to NR V2X scenarios) also helps reduce hardware complexity and cost. The embodiments and features of the embodiments in any node of the present application may be applied in any other node without conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily, provided that there is no conflict. In particular, for the explanation of the terms (Terminology), nouns, functions, and variables in this application (if not otherwise specified), reference may be made to the definitions in the 3GPP standard protocols TS36 series, TS38 series, and TS37 series.

The present application discloses a method used in a first node of wireless communication, which is characterized by comprising:

Send the first signaling and the first signal in the first time-frequency resource pool, where the first signal carries the first bit block; determine whether to send the second signaling and the third signal in the third time-frequency resource pool;

Monitor a second signal in the second time-frequency resource pool, the second signal indicates whether the first bit block is correctly received; when the first condition is satisfied, determine to send in the third time-frequency resource pool the second signaling and the third signal; when the second condition is satisfied, give up sending the second signaling in the third time-frequency resource pool, and determine that the third time-frequency resource pool is in the third time-frequency resource pool send the third signal in the third time-frequency resource pool; when the third condition is satisfied, give up sending the second signaling and the third signal in the third time-frequency resource pool; the monitoring result of the second signal is for determining which of the first condition, the second condition and the third condition is satisfied;

The first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes scheduling information of the third signal.

As an embodiment, the problems to be solved in this application include: in order to reduce unnecessary signaling overhead, when the second-stage SCI of the initial transmission or the previous retransmission is correctly received, the transmission of the second-stage is abandoned in this retransmission. The SCI or only the dynamically updated part of the field (Field) in the second stage SCI is transmitted.

As an embodiment, the characteristics of the above method include: when the second signaling is abandoned, more resources in the third time-frequency resource pool can be used for transmitting the third signal.

As an embodiment, the characteristics of the above method include: when the second signaling is abandoned, part of the scheduling information of the third signal is associated with one or more fields included in the first signaling.

As an embodiment, the characteristics of the above method include: when the second signaling is abandoned, part of the scheduling information of the third signal is configured as a predefined default (Default) value.

As an embodiment, the characteristics of the above method include: the monitoring result of the second signal is used to determine whether the second signaling is sent; when the monitoring result of the second signal confirms that the first signaling is sent When correctly detected, the second signaling is abandoned.

As an embodiment, the advantages of the above method include: reducing the signaling overhead of the second-stage SCI.

As an embodiment, the advantages of the above method include: PSSCH resources saved by reducing signaling overhead can be used for data transmission, thereby improving the reliability of data transmission.

As an embodiment, the advantages of the above method include: when the second condition is satisfied, the data receiver does not need to process the second signaling, the receiving complexity is reduced, and the processing delay is reduced.

According to one aspect of the present application, it is characterized in that:

Send third signaling, where the third signaling includes scheduling information of the first signaling.

When the first condition or the second condition is satisfied, a fourth signaling is sent; wherein, when the first condition is satisfied, the fourth signaling includes scheduling information of the second signaling .

The fourth signaling includes a field, and the field included in the fourth signaling indicates whether the second signaling is sent in the third time-frequency resource pool.

As an embodiment, the advantages of the above method include: the receiver of the fourth signaling can determine whether to monitor the second signaling according to the domain of the fourth signaling, and determine whether to monitor the second signaling according to a predefined rule. Receive data.

When the first condition or the second condition is satisfied, a fifth signaling is sent in the third time-frequency resource pool, where the fifth signaling includes scheduling information of the third signal.

When the third condition is satisfied, a sixth signaling and a fourth signal are sent in the third time-frequency resource pool; wherein, the fourth signal carries a second bit block, and the sixth signaling includes the In the scheduling information of the fourth signal, the number of information bits carried by the sixth signaling is less than the number of information bits jointly carried by the second signaling and the fifth signaling.

The resources occupied by the second time-frequency resource pool are related to the resources occupied by the first time-frequency resource pool.

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

monitoring a first signaling and a first signal in a first time-frequency resource pool, where the first signal carries a first bit block, and the first signaling includes scheduling information of the first signal;

determining whether to send the second signal in the second time-frequency resource pool;

When the first signaling is detected and the first signal is not detected, it is determined to send the second signal in the second time-frequency resource pool, and the second signal indicates the first signal If the bit block is not received correctly, the second signaling and the third signal are monitored in the third time-frequency resource pool; when the first signaling is detected and the first signal is detected, it is determined that the The second signal is sent in the second time-frequency resource pool, and the second signal indicates that the first bit block is correctly received; when the first signaling is not detected, it is abandoned at the second time sending the second signal in the frequency resource pool, and monitoring the second signaling and the third signal in the third time-frequency resource pool;

Wherein, the second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.

Third signaling is received, where the third signaling includes scheduling information of the first signaling.

The first signaling is not detected or the first signal is not detected, and a fourth signaling is received; wherein, the fourth signaling includes a field, and the fourth signaling includes the The field indicates whether the second signaling is sent in the third time-frequency resource pool.

The first signaling is detected and the first signal is not detected, when the field included in the fourth signaling indicates that the second signaling is not in the third time-frequency resource pool When sent in the third time-frequency resource pool, only the second signaling and the third signal in the third signal are received in the third time-frequency resource pool.

The first signaling is not detected or the first signal is not detected, and a fifth signaling is received in the third time-frequency resource pool, where the fifth signaling includes the information of the third signal. scheduling information.

The first signal is detected, and a sixth signaling and a fourth signal are received in the third time-frequency resource pool; wherein, the fourth signal carries a second bit block, and the sixth signaling includes the According to the scheduling information of the fourth signal, the number of information bits carried by the sixth signaling is less than the number of information bits jointly carried by the second signaling and the fifth signaling.

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

The first transmitter sends the first signaling and the first signal in the first time-frequency resource pool, and the first signal carries the first bit block; and judges whether to send the second signaling and the first signal in the third time-frequency resource pool. the third signal;

The first receiver monitors a second signal in the second time-frequency resource pool, the second signal indicates whether the first bit block is correctly received; when the first condition is satisfied, the first transmitter judges Send the second signaling and the third signal in the third time-frequency resource pool; when the second condition is satisfied, the first transmitter gives up sending in the third time-frequency resource pool In the second signaling, the first transmitter determines to send the third signal in the third time-frequency resource pool; when the third condition is satisfied, the first transmitter aborts the transmission of the third signal in the third time-frequency resource pool. The second signaling and the third signal are sent in the three time-frequency resource pools; the monitoring result of the second signal is used to determine the first condition, the second condition and the third condition are which of the conditions is satisfied;

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

a second receiver, monitoring a first signaling and a first signal in a first time-frequency resource pool, where the first signal carries a first bit block, and the first signaling includes scheduling information of the first signal;

a second transmitter, determining whether to transmit the second signal in the second time-frequency resource pool;

When the first signaling is detected and the first signal is not detected, the second transmitter determines to transmit the second signal in the second time-frequency resource pool, and the second The signal indicates that the first bit block is not correctly received, and the second receiver monitors the second signaling and the third signal in the third time-frequency resource pool; when the first signaling is detected and the When the first signal is detected, the second transmitter determines to send the second signal in the second time-frequency resource pool, and the second signal indicates that the first bit block is correctly received; When the first signaling is not detected, the second transmitter gives up sending the second signal in the second time-frequency resource pool, and the second receiver in the third time-frequency resource pool monitoring the second signaling and the third signal in the middle;

As an embodiment, compared with the traditional solution, the present application has the following advantages:

Reduce the signaling overhead of SCI;

The time-frequency resources saved by reducing signaling overhead can be used for data transmission to improve data transmission reliability;

Reduce the receiving complexity and reduce the processing delay at the receiving end.

Description of drawings

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

FIG. 1 shows a process flow diagram of a first node according to an embodiment of the present application;

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

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;

Figure 5 shows a flow chart of transmission according to an embodiment of the present application;

6 shows a schematic diagram of a process of judging whether the second signaling and the third signal are sent according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of the relationship among the second signaling, the fourth signaling, the fifth signaling and the third signal according to an embodiment of the present application;

FIG. 8 is a schematic diagram showing the relationship between the monitoring result of the second signal and the first condition, the second condition and the third condition according to an embodiment of the present application;

FIG. 9 shows the time domain resources occupied by the third signaling, the time domain resources occupied by the fourth signaling, the time domain resources occupied by the first time-frequency resource pool, the second A schematic diagram of the relationship between the time-domain resources occupied by the time-frequency resource pool and the time-domain resources occupied by the third time-frequency resource pool;

FIG. 10 shows a schematic diagram of the relationship between the time-frequency resources occupied by the second signaling and the time-frequency resources occupied by the third signal according to an embodiment of the present application;

11 shows a schematic diagram of the relationship between the time-frequency resources occupied by the second signaling, the time-frequency resources occupied by the fifth signaling, and the time-frequency resources occupied by the third signal according to an embodiment of the present application;

12 shows a schematic diagram of the relationship between the time-frequency resources occupied by the first time-frequency resource pool and the time-frequency resources occupied by the second time-frequency resource pool according to an embodiment of the present application;

FIG. 13 shows a structural block diagram of a processing apparatus for a device in a first node according to an embodiment of the present application;

FIG. 14 shows a structural block diagram of a processing apparatus for a device in a second node according to an embodiment of the present application.

detailed description

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

Example 1

Embodiment 1 illustrates a processing flow chart of the first node according to an embodiment of the present application, as shown in FIG. 1 .

In Embodiment 1, the first node in the present application sends the first signaling and the first signal in the first time-frequency resource pool in step 11; listens in the second time-frequency resource pool in step 12 the second signal; in step 13, determine whether to send the second signaling and the third signal in the third time-frequency resource pool; wherein, the first signal carries the first bit block, and the first signaling includes the scheduling information of the first signal, the third signal carrying the first bit block, the second signaling including the scheduling information of the third signal, the second signal indicating whether the first bit block is to be received correctly.

In Embodiment 1, when the first condition is satisfied, the first transmitter determines to send the second signaling and the third signal in the third time-frequency resource pool; when the second condition is satisfied When satisfied, the first transmitter gives up sending the second signaling in the third time-frequency resource pool, and the first transmitter determines to send the third signaling in the third time-frequency resource pool signal; when the third condition is satisfied, the first transmitter gives up sending the second signaling and the third signal in the third time-frequency resource pool; the monitoring result of the second signal is It is used to determine which of the first condition, the second condition and the third condition is satisfied.

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

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

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

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

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

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

As an embodiment, the first signal is transmitted by broadcast (Broadcast).

As an embodiment, the first signaling is unicast transmission.

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

As an embodiment, the first signaling is broadcast transmission.

As an embodiment, the second signaling is unicast transmission.

As an embodiment, the second signaling is transmitted by multicast.

As an embodiment, the second signaling is broadcast transmission.

As an embodiment, the third signal is transmitted unicast.

As an embodiment, the third signal is transmitted by multicast.

As an embodiment, the third signal is broadcast transmission.

As an embodiment, the second signal is transmitted unicast.

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

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

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

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

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

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

As an embodiment, the second signaling is transmitted through the Uu interface.

As an embodiment, the first signal is transmitted through a Uu interface.

As an embodiment, the second signal is transmitted through a Uu interface.

As an embodiment, the third signal is transmitted through a Uu interface.

As an embodiment, the first signaling is transmitted on the secondary link.

As an embodiment, the second signaling is transmitted on the secondary link.

As an embodiment, the first signal is transmitted on the secondary link.

As an embodiment, the second signal is transmitted on the secondary link.

As an embodiment, the third signal is transmitted on the secondary link.

As an embodiment, the first signaling is DCI (Downlink Control Information, downlink control information).

As an embodiment, the first signaling includes one or more fields (Field) in a DCI.

As an embodiment, the first signaling is SCI.

As an embodiment, the first signaling includes one or more fields in an SCI.

As an embodiment, the first signaling is the second stage (2nd-stage) SCI in the two-stage (Two-stage) SCI in the V2X communication.

As an embodiment, the first signaling includes one or more fields in a second-stage SCI in a two-stage SCI in a V2X communication.

As an embodiment, the first signaling is PHY (Physical, physical) layer signaling.

As an embodiment, the first signaling is higher layer (Higher Layer) signaling.

As an embodiment, the second signaling is DCI.

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

As an embodiment, the second signaling is SCI.

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

As an embodiment, the second signaling is the second-stage SCI in the two-stage SCI in the V2X communication.

As an embodiment, the second signaling includes one or more fields in the second-stage SCI of the two-stage SCI in a V2X communication.

As an embodiment, the second signaling is PHY layer signaling.

As an embodiment, the second signaling is higher layer signaling.

As an embodiment, the first signaling is used to activate an SPS (Semi-persistent Scheduling, semi-persistent scheduling).

As an embodiment, the second signaling is used to activate an SPS.

As an embodiment, when the first condition is satisfied, the second signaling is a repeated transmission of the first signaling.

As an embodiment, the third signal is a repeated transmission of the first signal when the first condition is satisfied.

As an embodiment, the sentence, the first signal carrying the first bit block includes, the first signal is that all or part of the bits in the first bit block undergo a CRC (Cyclic Redundancy Check, Cyclic Redundancy Check) in sequence. Test) Attachment, Segmentation, Coded Block Level CRC Attachment, Channel Coding, Rate Matching, Concatenation, Scrambling, Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Transform Precoder (Transform Precoder, used to generate complex-valued signals), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), multi-carrier symbol generation ( Generation), the output after some or all of the modulation and upconversion (Modulation and Upconversion).

As an embodiment, the sentence, the third signal carrying the first bit block includes, the third signal is that all or part of the bits in the first bit block are sequentially attached, segmented, and encoded by CRC. Stage CRC attachment, channel coding, rate matching, concatenation, scrambling, modulation mapper, layer mapper, transform precoder, precoding, resource element mapper, multicarrier symbol generation, modulation and upconversion after some or all of them Output.

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

As an embodiment, the second signaling is transmitted on the PSCCH.

As an embodiment, the first signaling is transmitted on PSSCH.

As an embodiment, the second signaling is transmitted on PSSCH.

As an embodiment, the first signal is transmitted on PSSCH.

As an embodiment, the third signal is transmitted on PSSCH.

As an embodiment, the first signaling is transmitted on PDCCH (Physical Downlink Control Channel, physical downlink control channel).

As an embodiment, the second signaling is transmitted on the PDCCH.

As an embodiment, the first signal is transmitted on PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).

As an embodiment, the third signal is transmitted on PDSCH.

As an embodiment, the second signal is transmitted on PSFCH (Physical Sidelink Feedback Channel, Physical Sidelink Feedback Channel).

As an embodiment, the second signal is transmitted on PUSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).

As an embodiment, the second signal is transmitted on PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel).

As an embodiment, the first time-frequency resource pool includes PSCCH.

As an embodiment, the first time-frequency resource pool includes PSSCH.

As an embodiment, the first time-frequency resource pool includes PDCCH.

As an embodiment, the first time-frequency resource pool includes PDSCH.

As an embodiment, the second time-frequency resource pool includes PSFCH.

As an embodiment, the second time-frequency resource pool includes PUSCH.

As an embodiment, the second time-frequency resource pool includes PUCCH.

As an embodiment, the third time-frequency resource pool includes PSCCH.

As an embodiment, the third time-frequency resource pool includes PSSCH.

As an embodiment, the third time-frequency resource pool includes PDCCH.

As an embodiment, the third time-frequency resource pool includes PDSCH.

As an embodiment, the first time-frequency resource pool includes some time-frequency resources in an RP (Resource Pool, resource pool).

As an embodiment, the second time-frequency resource pool includes part of the time-frequency resources in one RP.

As an embodiment, the third time-frequency resource pool includes part of the time-frequency resources in one RP.

As an embodiment, when the second condition is satisfied, the scheduling information of the third signal is not sent in the third time-frequency resource pool.

As an embodiment, the scheduling information of the first signal includes {occupied time domain resources, occupied frequency domain resources, MCS, DMRS (Demodulation Reference Signals, demodulation reference signals) configuration information, HARQ process number One or more of (HARQ process ID), RV (Redundancy Version), NDI, priority}.

As an embodiment, the scheduling information of the third signal includes {occupied time domain resources, occupied frequency domain resources, MCS, DMRS configuration information, HARQ process ID, RV, NDI, priority} in one or more.

As an embodiment, the second signaling and the third signal have the same modulation mode.

As an embodiment, the second signaling and the third signal have different modulation modes.

As an embodiment, the modulation scheme of the second signaling is QPSK, and the modulation scheme of the third signal is 16QAM.

As an embodiment, the modulation mode of the second signaling is QPSK, and the modulation mode of the third signal is 64QAM.

As an embodiment, the modulation mode of the second signaling is QPSK, and the modulation mode of the third signal is 256QAM.

As an embodiment, the modulation mode of the second signaling is 64QAM, and the modulation mode of the third signal is 64QAM.

As an embodiment, the modulation mode of the second signaling is 256QAM, and the modulation mode of the third signal is 256QAM.

As an embodiment, the first signal includes a plurality of information bits.

As an embodiment, the first signal includes a TB (Transport Block).

As an embodiment, the first signal includes one or more CBGs (Code Block Groups).

As an embodiment, the third signal includes a plurality of information bits.

As an embodiment, the third signal includes one TB.

As an embodiment, the third signal includes one or more CBGs.

As an embodiment, the first signal includes an initially transmitted TB.

As an embodiment, the first signal includes a retransmitted TB.

As an embodiment, the third signal includes a retransmitted TB.

As an embodiment, when the second condition is satisfied, the MCS of the third signal sent in the third time-frequency resource pool is smaller than that in the third time-frequency resource pool when the first condition is satisfied The MCS of the third signal sent in the three time-frequency resource pools.

As an embodiment, the number of time-frequency resource elements occupied by the third signal is related to which one of the first condition and the second condition is satisfied.

As an embodiment, when the second condition is satisfied, the number of time-frequency resource elements occupied by the third signal sent in the third time-frequency resource pool is more than when the first condition is satisfied The number of time-frequency resource elements occupied by the third signal sent in the third time-frequency resource pool at time.

As an embodiment, when the second condition is satisfied, the number of time-frequency resource elements occupied by the third signal sent in the third time-frequency resource pool is equal to when the first condition is satisfied The number of time-frequency resource elements jointly occupied by the second signaling and the third signal sent in the third time-frequency resource pool.

As an embodiment, when the second condition is satisfied, the number of time-frequency resource elements occupied by the third signal sent in the third time-frequency resource pool is equal to the first signaling and the The number of time-frequency resource elements commonly occupied by the first signal.

As an embodiment, the scheduling information of the third signal is not sent in the third time-frequency resource pool.

As an embodiment, the number of time-frequency resource elements occupied by the third signal is related to whether the second signaling is sent.

As an embodiment, the time-frequency resource element is a RE (Resource Element, resource element).

As an embodiment, the time-frequency resource element is an RB (Resource Block, resource pool).

As an embodiment, the time-frequency resource particle is a PRB (Physical Resource Block, physical resource pool).

As an embodiment, the time-frequency resource element is a sub-channel.

As an embodiment, the time-frequency resource element is a CCE (Control-Channel Element, control channel element).

As an embodiment, the time-frequency resource element is a REG (Resource Element Group, resource element group).

As an embodiment, the time-frequency resource element is an SC (sub-carrier, sub-carrier).

As an embodiment, the resource element is an OFDM (Orthogonal Frequency Division Multiplexing) symbol (Symbol).

As an embodiment, the resource element is a time slot (Slot).

Example 2

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

FIG. 2 illustrates a diagram of a network architecture 200 of a 5G NR, LTE (Long-Term Evolution, Long Term Evolution) and LTE-A (Long-Term Evolution Advanced, Enhanced Long Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System) 200 by some other suitable term. The 5GS/EPS 200 may include one or more UE (User Equipment, user equipment) 201, a UE 241 for secondary link communication with the UE 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network, 5G core network)/EPC (Evolved Packet Core, evolved packet core) 210, HSS (Home Subscriber Server, home subscriber server)/UDM (Unified Data Management, unified data management) 220 and Internet service 230. 5GS/EPS can be combined with Other access networks are interconnected, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services or other cellular networks. The NG-RAN includes NR Node Bs (gNBs) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201 . gNBs 203 may connect to other gNBs 204 via an Xn interface (eg, backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmit Receive Node) or some other suitable terminology. gNB203 provides UE201 with an access point to 5GC/EPC210. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , video devices, digital audio players (eg, MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term. gNB203 is connected to 5GC/EPC210 through S1/NG interface. 5GC/EPC210 includes MME (Mobility Management Entity, mobility management entity)/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function, session management function) 211. Other MME/AMF/SMF214, S-GW (Service Gateway, service gateway)/UPF (User Plane Function, user plane function) 212 and P-GW (Packet Date Network Gateway, packet data network gateway)/UPF213. The MME/AMF/SMF 211 is the control node that handles signaling between the UE 201 and the 5GC/EPC 210 . In general, MME/AMF/SMF 211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through the S-GW/UPF212, and the S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW/UPF 213 is connected to the Internet service 230 . The Internet service 230 includes the Internet Protocol service corresponding to the operator, and may specifically include the Internet, an intranet, an IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the first node in this application includes the gNB203.

As an embodiment, the air interface between the UE 201 and the gNB 203 is a Uu interface.

As an embodiment, the wireless link between the UE 201 and the gNB 203 is a cellular network link.

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

As an embodiment, the radio link between the UE 201 and the UE 241 is a secondary link.

As an embodiment, the first node in this application and the second node in this application are respectively a terminal within the coverage of the gNB203.

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

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

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

As an embodiment, multicast transmission is supported between the UE201 and the UE241.

As an embodiment, the sender of the first signal in this application includes the gNB203.

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

As an embodiment, the sender of the third signal in this application includes the gNB203.

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

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

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

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

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

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

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

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

As an embodiment, the sender of the first signaling in this application includes the gNB203.

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

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

As an embodiment, the recipient of the second signaling in this application includes the UE201.

As an embodiment, the recipient of the second signaling in this application includes the UE241.

As an embodiment, the sender of the second signaling in this application includes the gNB203.

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

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

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

As an embodiment, the recipient of the third signaling in this application includes the UE241.

As an embodiment, the sender of the third signaling in this application includes the gNB203.

As an embodiment, the sender of the fourth signaling in this application includes the UE201.

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

As an embodiment, the recipient of the fourth signaling in this application includes the UE201.

As an embodiment, the recipient of the fourth signaling in this application includes the UE241.

As an embodiment, the sender of the fourth signaling in this application includes the gNB203.

As an embodiment, the sender of the fifth signaling in this application includes the UE201.

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

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

As an embodiment, the receiver of the fifth signaling in this application includes the UE241.

As an embodiment, the sender of the fifth signaling in this application includes the gNB203.

As an embodiment, the sender of the sixth signaling in this application includes the UE201.

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

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

As an embodiment, the receiver of the sixth signaling in this application includes the UE241.

As an embodiment, the sender of the sixth signaling in this application includes the gNB203.

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

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

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

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

As an embodiment, the sender of the fourth signal in this application includes the gNB203.

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

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

As an embodiment, the receiver 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.

As an embodiment, the receiver of the second signal in this application includes the gNB203.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a 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 of a user plane and a control plane according to the present application, as shown in FIG. 3 . Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, showing three layers for a first communication node device (UE, gNB or RSU in V2X) and a second Communication Node Equipment (gNB, UE or RSU in V2X), or Radio Protocol Architecture of Control Plane 300 between two UEs: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above the PHY 301 and is responsible for the link between the first communication node device and the second communication node device and the two UEs through the PHY 301 . L2 layer 305 includes MAC (Medium Access Control, Media Access Control) sublayer 302, RLC (Radio Link Control, Radio Link Layer Control Protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) sublayer 304, the sublayers are terminated 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 for providing security by encrypting data packets, as well as providing handoff support for the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource pools) in a cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control, Radio Resource Control) sublayer 306 in the layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and using the communication between the second communication node device and the first communication node device. The RRC signaling between them is used to configure the lower layers. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 For the physical layer 351, L2 The PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are substantially the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 is also Provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol, Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for the mapping between the QoS flow and the data radio bearer (DRB, Data Radio Bearer). , to support business diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (eg, IP layer) terminating at the P-GW on the network side and another terminating in a connection Application layer at one end (eg, remote UE, server, etc.).

As an embodiment, the radio protocol architecture in FIG. 3 is applicable to the first node in this application.

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

As an embodiment, the first signal in this application is generated by the PHY 301 or the PHY 351 .

As an embodiment, the second signal in this application is generated in the PHY 301 or the PHY 351 .

As an embodiment, the third signal in the present application is generated in the PHY 301 or the PHY 351 .

As an embodiment, the first signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the second signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the third signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the fourth signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the fifth signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the sixth signaling in this application is generated in the PHY 301 or the PHY 351.

As an embodiment, the fourth signal in this application is generated by the PHY 301 or the PHY 351 .

As an embodiment, the first signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the second signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the third signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the fourth signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the fifth signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the sixth signaling in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the second signal in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

As an embodiment, the fourth signal in this application is generated in the MAC sublayer 302 or the MAC sublayer 352 .

Example 4

Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in FIG. 4 . FIG. 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

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

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

In the transmission from the first communication device 410 to the second communication device 450 , at the first communication device 410 , upper layer data packets from the core network are provided to the controller/processor 475 . The controller/processor 475 implements the functionality of 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 the second communication device 450 based on various priority metrics Radio resource allocation. The controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450 . Transmit processor 416 and multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (ie, the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and based on various modulation schemes (eg, binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M Phase Shift Keying (M-PSK), M Quadrature Amplitude Modulation (M-QAM)) constellation mapping. The multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (eg, a pilot) in the time and/or frequency domain, and then uses an inverse fast Fourier transform (IFFT) ) to generate a physical channel that carries a multi-carrier symbol stream in the time domain. Then the multi-antenna transmit processor 471 performs transmit analog precoding/beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, which is then provided to a different antenna 420.

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

In the transmission from the second communication device 450 to the first communication device 410 , at the second communication device 450 , a data source 467 is used to provide upper layer data packets to the controller/processor 459 . Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communication device 410 described in the DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and logical AND based on the radio resource allocation of the first communication device 410 Multiplexing between transport channels, implementing L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping, channel coding processing, multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, followed by transmission The processor 468 modulates the generated parallel stream into a multi-carrier/single-carrier symbol stream, which undergoes an analog precoding/beamforming operation in the multi-antenna transmit processor 457 and then provides it to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, which is then provided to the antenna 452 .

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to that in the transmission from the first communication device 410 to the second communication device 450 The receive function at the second communication device 450 described in the transmission of . Each receiver 418 receives radio frequency signals through its respective antenna 420 , converts the received radio frequency signals to baseband signals, and provides the baseband signals to multi-antenna receive processor 472 and receive processor 470 . The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. 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, decryption, header decompression, control signal processing to recover upper layer data packets from the second communication device 450. Upper layer packets from controller/processor 475 may be provided to the core network. The 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, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The second communication device 450 means at least: sending the first signaling in this application and the first signal in this application in the first time-frequency resource pool in this application, the first The signal carries the first bit block in this application; it is judged whether to send the second signaling in this application and the third signal in this application in the third time-frequency resource pool in this application ; monitor the second signal in the present application in the second time-frequency resource pool in the present application, and the second signal indicates whether the first bit block is correctly received; when the When the first condition is satisfied, it is determined to send the second signaling and the third signal in the third time-frequency resource pool; The second signaling is sent in the third time-frequency resource pool, and it is determined that the third signal is sent in the third time-frequency resource pool; when the third condition in this application is satisfied, the The second signaling and the third signal are sent in the third time-frequency resource pool; the monitoring result of the second signal is used to determine the first condition, the second condition and the third Which of the conditions is satisfied; wherein the first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes the scheduling information of the third signal.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: The first signaling in this application and the first signal in this application are sent in the first time-frequency resource pool in the application, and the first signal carries the first bit block in this application ; determine whether to send the second signaling in the present application and the third signal in the present application in the third time-frequency resource pool in the present application; in the second time-frequency resource pool in the present application The second signal in this application is monitored in the resource pool, and the second signal indicates whether the first bit block is correctly received; when the first condition in this application is satisfied, it is determined that the Send the second signaling and the third signal in three time-frequency resource pools; when the second condition in this application is satisfied, give up sending the second signaling in the third time-frequency resource pool signaling, determine to send the third signal in the third time-frequency resource pool; when the third condition in this application is satisfied, give up sending the third signal in the third time-frequency resource pool two signaling and the third signal; the monitoring result of the second signal is used to determine the first condition, which one of the second condition and the third condition is satisfied; wherein, The first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes scheduling information of the third signal.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The first communication device 410 means at least: monitor the first signaling in this application and the first signal in this application in the first time-frequency resource pool in this application, the first The signal carries the first bit block in this application, and the first signaling includes scheduling information of the first signal; it is judged whether to send the the second signal; when the first signaling is detected and the first signal is not detected, it is determined that the second signal is sent in the second time-frequency resource pool, and the second signal is sent in the second time-frequency resource pool. The signal indicates that the first bit block is not correctly received, and the second signaling in this application and the third signal in this application are monitored in the third time-frequency resource pool in this application; when When the first signaling is detected and the first signal is detected, it is determined to send the second signal in the second time-frequency resource pool, and the second signal indicates the first bit block received correctly; when the first signaling is not detected, give up sending the second signal in the second time-frequency resource pool, and monitor the second signal in the third time-frequency resource pool signaling and the third signal; wherein the second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: The first time-frequency resource pool in the application monitors the first signaling in the application and the first signal in the application, and the first signal carries the first bit block in the application , the first signaling includes scheduling information of the first signal; determine whether to send the second signal in the present application in the second time-frequency resource pool in the present application; when the first signal When the command is detected and the first signal is not detected, determine that the second signal is sent in the second time-frequency resource pool, and the second signal indicates that the first bit block is not correctly received , monitor the second signaling in this application and the third signal in this application in the third time-frequency resource pool in this application; when the first signaling is detected and the When the first signal is detected, it is determined to send the second signal in the second time-frequency resource pool, and the second signal indicates that the first bit block is correctly received; when the first signal is not When detected, give up sending the second signal in the second time-frequency resource pool, and monitor the second signaling and the third signal in the third time-frequency resource pool; wherein, the The second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The second communication device 450 means at least: send the third signaling in the present application, where the third signaling includes scheduling information of the first signaling in the present application.

As an embodiment, the first communication device 450 includes: a memory for storing a program of computer-readable instructions, the program of computer-readable instructions generates actions when executed by at least one processor, and the actions include: sending this The third signaling in the application, the third signaling includes the scheduling information of the first signaling in the application.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The second communication device 450 means at least: when the first condition in this application or the second condition in this application is satisfied, send the fourth signaling in this application; wherein, when the When the first condition is satisfied, the fourth signaling includes scheduling information of the second signaling in this application.

As an embodiment, the first communication device 450 includes: a memory for storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: when the present When the first condition in the application or the second condition in this application is satisfied, the fourth signaling in this application is sent; wherein, when the first condition is satisfied, the fourth signaling The signaling includes scheduling information of the second signaling in this application.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The second communication device 450 means at least: when the first condition in this application or the second condition in this application is satisfied, send this application in the third time-frequency resource pool in this application The fifth signaling in , the fifth signaling includes the scheduling information of the third signal in this application.

As an embodiment, the first communication device 450 includes: a memory for storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: when the present When the first condition in this application or the second condition in this application is satisfied, the fifth signaling in this application is sent in the third time-frequency resource pool in this application, and the first Five signaling includes scheduling information of the third signal in this application.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to interact with the used together with at least one processor. The second communication device 450 means at least: the third condition in the present application is satisfied, and the sixth signaling in the present application and the present application are sent in the third time-frequency resource pool in the present application The fourth signal in ; wherein, the fourth signal carries the second bit block in the present application, the sixth signaling includes the scheduling information of the fourth signal, and the sixth signaling The number of information bits carried is less than the number of information bits jointly carried by the second signaling in this application and the fifth signaling in this application.

As an embodiment, the first communication device 450 includes: a memory for storing a program of computer-readable instructions, the program of computer-readable instructions generating actions when executed by at least one processor, and the actions include: the present application If the third condition in this application is satisfied, the sixth signaling in this application and the fourth signal in this application are sent in the third time-frequency resource pool in this application; wherein, the The fourth signal carries the second bit block in this application, the sixth signaling includes scheduling information of the fourth signal, and the number of information bits carried by the sixth signaling is less than that in this application. The number of information bits jointly carried by the second signaling and the fifth signaling in this application.

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

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

As an embodiment, the second communication device 450 is a UE.

As an embodiment, the second communication device 450 is a base station.

As an embodiment, the first communication device 410 is a UE.

As an embodiment, at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} One is used to receive or monitor the first signal in this application, the third signal in this application, the first signaling in this application, the second signaling in this application, One or more of the third signaling in this application, the fourth signaling in this application, the fifth signaling in this application, and the sixth signaling in this application; of {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} At least one of them is used to send the first signal in this application, the third signal in this application, the first signaling in this application, the second signaling in this application, the One or more of the third signaling in this application, the fourth signaling in this application, the fifth signaling in this application, and the sixth signaling in this application.

As an example, {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 at least one of the sources 467} is used to receive or listen to the second signal in this application; {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, at least one of the controller/processor 475, the memory 476} is used to transmit the second signal in the present application.

Example 5

Embodiment 5 illustrates a flowchart of wireless transmission according to an embodiment of the present application, as shown in FIG. 5 . In FIG. 5, the communication between the first node U1 and the second node U2 is carried out through the air interface. The dotted boxes marked F51, F52, F53 and F54 in the figure are optional; the dotted lines with arrows in the figure indicate that the sender of the signal decides whether to send the signal according to the judgment result.

The first node U1 sends the third signaling in step S5101; sends the first signaling and the first signal in the first time-frequency resource pool in step S511; monitors in the second time-frequency resource pool in step S512 the second signal; in step S5102, when the first condition or the second condition is satisfied, send the fourth signaling; in step S513, determine whether to send the second signaling in the third time-frequency resource pool; in step S5103 , when the first condition or the second condition is satisfied, the fifth signaling is sent in the third time-frequency resource pool; in step S514, it is judged whether to send the third signal in the third time-frequency resource pool; in step S5104 In the third time-frequency resource pool, the sixth signaling and the fourth signaling are sent.

The second node U2 receives the third signaling in step S5201; monitors the first signaling and the first signal in the first time-frequency resource pool in step S521; in step S522, judges whether it is in the second time-frequency resource pool send the second signal in step S5202; receive the fourth signaling in step S5202; monitor the second signaling in the third time-frequency resource pool in step S523; receive the fifth signaling in the third time-frequency resource pool in step S5203 ; in step S524, monitor the third signal in the third time-frequency resource pool; in step S5204, receive the sixth signaling and the fourth signal in the third time-frequency resource pool.

In Embodiment 5, the first signal carries a first bit block, the second signal indicates whether the first bit block is correctly received, and the first signaling includes scheduling information of the first signal, The third signal carries the first bit block, the second signaling includes scheduling information of the third signal, and the third signaling includes scheduling information of the first signaling.

In Embodiment 5, when the first condition is satisfied, the first node U1 determines to send the second signaling and the third signal in the third time-frequency resource pool; when the second condition is satisfied When satisfied, the first node U1 gives up sending the second signaling in the third time-frequency resource pool, and the first node U1 determines to send the third signaling in the third time-frequency resource pool. signal; when the third condition is satisfied, the first node U1 gives up sending the second signaling and the third signal in the third time-frequency resource pool; the monitoring result of the second signal is It is used to determine which of the first condition, the second condition and the third condition is satisfied.

In Embodiment 5, when the first condition or the second condition is satisfied, the first node U1 sends the fourth signaling; the fourth signaling includes a field, the first The field included in the fourth signaling indicates whether the second signaling is sent in the third time-frequency resource pool; wherein, when the first condition is satisfied, the fourth signaling includes the the scheduling information of the second signaling.

In Embodiment 5, when the first condition or the second condition is satisfied, the first node U1 sends the fifth signaling in the third time-frequency resource pool, and the fifth The signaling includes scheduling information for the third signal.

In Embodiment 5, when the third condition is satisfied, the first node U1 sends the sixth signaling and the fourth signal in the third time-frequency resource pool; wherein, the The fourth signal carries a second bit block, the sixth signaling includes scheduling information of the fourth signal, and the number of information bits carried by the sixth signaling is less than that of the second signaling and the The number of information bits commonly carried by the fifth signaling.

In Embodiment 5, when the first signaling is detected and the first signal is not detected, the second node U2 determines to send the second signal in the second time-frequency resource pool signal, the second signal indicates that the first bit block is not correctly received, and the second node U2 monitors the second signaling and the third signal in the third time-frequency resource pool; when When the first signaling is detected and the first signal is detected, the second node U2 determines to send the second signal in the second time-frequency resource pool, and the second signal indicates The first bit block is correctly received; when the first signaling is not detected, the second node U2 gives up sending the second signal in the second time-frequency resource pool, and the first The second node U2 monitors the second signaling and the third signal in the third time-frequency resource pool.

In Embodiment 5, the second node U2 receives the fourth signaling only when the fourth signaling is sent.

In Embodiment 5, the second node U2 receives the fifth signaling only when the fifth signaling is sent in the third time-frequency resource pool.

In Embodiment 5, the second node U2 receives the sixth signaling and the fourth signal only when the sixth signaling and the fourth signal are sent in the third time-frequency resource pool. Fourth signal.

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

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

As an embodiment, the air interface between the second node U2 and the first node U1 is a Uu interface.

As an embodiment, the air interface between the second node U2 and the first node U1 comprises a cellular link.

As an embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between the base station equipment and the user equipment.

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

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

As an embodiment, the air interface between the second node U2 and the first node U1 includes a secondary link.

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

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

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

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

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

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

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

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

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

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

As an embodiment, the third signaling includes partial scheduling information of the first signal.

As an embodiment, when the third condition is satisfied, the fourth signaling is not sent.

As an embodiment, the third signaling is a first-stage (1st-stage) SCI in a two-stage SCI in a V2X communication.

As an embodiment, the fourth signaling is a first-stage SCI in a two-stage SCI in a V2X communication.

As an embodiment, the third signaling includes one or more fields in the first-stage SCI of the two-stage SCI in a V2X communication.

As an embodiment, the fourth signaling includes one or more fields in the first-stage SCI of the two-stage SCI in a V2X communication.

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

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

As an embodiment, the third signaling includes indication information of time-frequency resources occupied by the first signaling.

As an embodiment, the third signaling includes indication information of a signaling format (Format) of the first signaling.

As an embodiment, the third signaling includes indication information of time-frequency resources occupied by the first signal.

As an embodiment, the third signaling includes indication information of the priority of the first signal.

As an embodiment, the third signaling includes indication information of the MCS of the first signal.

As an embodiment, the third signaling includes indication information of whether the first signal is an initial transmission (Initial Transmission) or a number of times the first signal is a retransmission (Retransmission).

As an embodiment, the third signaling is sent on PSCCH.

As an embodiment, the fourth signaling is sent on PSCCH.

As an embodiment, the third signaling includes a destination ID (Destination ID).

As an embodiment, the fourth signaling includes Destination ID.

As an embodiment, the third signaling is sent in the first time-frequency resource pool.

As an embodiment, the fourth signaling is sent in the third time-frequency resource pool.

As an embodiment, the fourth signaling includes indication information of time-frequency resources occupied by the second signaling.

As an embodiment, the third signaling includes indication information of a signaling format of the second signaling.

As an embodiment, the fourth signaling includes indication information of time-frequency resources occupied by the third signal.

As an embodiment, the fourth signaling includes indication information of the priority of the third signal.

As an embodiment, the fourth signaling includes indication information of the MCS of the third signal.

As an embodiment, the fourth signaling includes information indicating whether the third signal is the first transmission or the number of times the third signal is retransmitted.

As an embodiment, the third signaling is used for channel sensing of terminals other than the first node.

As an embodiment, the fourth signaling is used for channel sensing of terminals other than the first node.

As an embodiment, the receiver of the third signaling includes the second node in the present application, and the second node receives the third signaling through blind detection.

As an embodiment, the recipient of the fourth signaling includes the second node in the present application, and the second node receives the fourth signaling through blind detection.

As an embodiment, the third signaling is encoded by using a polar code (Polar Code).

As an embodiment, the fourth signaling is encoded using polar codes.

As an embodiment, the first signaling is encoded using polar codes.

As an embodiment, the second signaling is encoded using polar codes.

As an embodiment, the fifth signaling is encoded using polar codes.

As an embodiment, the sixth signaling is encoded using polar codes.

As an embodiment, the first signal is encoded using an LDPC (Low-density Parity-check, low-density parity-check) code.

As an embodiment, the third signal is encoded using an LDPC code.

As an embodiment, the fourth signal is encoded using an LDPC code.

As an embodiment, the second signal is encoded using polar codes.

As an embodiment, the second signal includes a sequence (Sequence).

As a sub-embodiment of the above-mentioned embodiment, the sequence is a ZC (Zadoff-Chu) sequence.

As a sub-embodiment of the above-described embodiment, the sequence includes a pseudo-random sequence.

As an embodiment, the format of the second signal is PUCCH format 0.

As an embodiment, the field included in the fourth signaling includes one or more bits.

As an embodiment, the field included in the fourth signaling explicitly indicates whether the second signaling is sent in the third time-frequency resource pool.

As an embodiment, the field included in the fourth signaling implicitly indicates whether the second signaling is sent in the third time-frequency resource pool.

As an embodiment, the third signaling includes a field, and the field included in the third signaling explicitly indicates whether the first signaling is sent in the first time-frequency resource pool.

As an embodiment, the third signaling includes a field, and the field included in the third signaling implicitly indicates whether the first signaling is sent in the first time-frequency resource pool.

As an embodiment, when the third condition is satisfied, the fifth signaling is not sent.

As an embodiment, the first signaling includes all scheduling information of the first signal.

As an embodiment, the first signaling includes partial scheduling information of the first signal.

As an embodiment, the fifth signaling is an SCI.

As an embodiment, the fifth signaling includes an SCI.

As an embodiment, the fifth signaling includes one or more fields in an SCI.

As an embodiment, the fifth signaling includes one or more fields in a DCI.

As an embodiment, the fifth signaling is the second-stage SCI in the two-stage SCI in the V2X communication.

As an embodiment, the fifth signaling includes a second-stage SCI in a two-stage SCI in a V2X communication.

As an embodiment, the fifth signaling includes one or more fields in the second-stage SCI of the two-stage SCI in a V2X communication.

As an embodiment, the second signaling includes one or more fields in the second-stage SCI in the two-stage SCI in a V2X communication, and the fifth signaling includes the two-stage SCI in the One or more fields other than the fields included in the second signaling in the second stage SCI.

As an embodiment, the second signaling includes one or more fields in an SCI, and the fifth signaling includes one of the fields in the SCI except the fields included in the second signaling or multiple domains.

As an embodiment, the second signaling includes one or more domains in one DCI, and the fifth signaling includes one of the DCIs except the domain included in the second signaling or multiple domains.

As an embodiment, the second signaling includes one or more fields in one DCI, and the fifth signaling includes one or more fields in another DCI.

As an embodiment, the second signaling includes one or more fields in one SCI, and the fifth signaling includes one or more fields in another SCI.

As an embodiment, the fifth signaling includes indication information of the MCS of the third signal.

As an embodiment, the fifth signaling includes indication information of the HARQ process ID of the third signal.

As an embodiment, the fifth signaling includes indication information of the RV ID of the third signal.

As an embodiment, the fifth signaling includes indication information of time-frequency resources occupied by the third signal.

As an embodiment, the fifth signaling includes indication information of the priority of the third signal.

As an embodiment, the second signaling includes indication information of the MCS of the third signal.

As an embodiment, the second signaling includes indication information of the HARQ process ID of the third signal.

As an embodiment, the second signaling includes indication information of the RV ID of the third signal.

As an embodiment, the second signaling includes indication information of time-frequency resources occupied by the third signal.

As an embodiment, the second signaling includes indication information of the priority of the third signal.

As an embodiment, the second signaling includes indication information of a source ID (Source ID) of a sender of the third signal.

As an embodiment, the second signaling includes indication information of the geographic location of the sender of the third signal.

As an embodiment, the second signaling includes indication information of a zone ID (Zone ID) of the sender of the third signal.

As an embodiment, the fifth signaling includes indication information of the geographic location of the sender of the third signal.

As an embodiment, the fifth signaling includes indication information of the area ID of the sender of the third signal.

As an embodiment, when the second condition is satisfied, part of the scheduling information of the third signal is related to the first signaling.

As an embodiment, when the second condition is satisfied, the RV (Redundancy Version) ID of the third signal is configured at a higher layer.

As an embodiment, the MCS of the third signal is configured in a DCI, and the DCI is transmitted on the Uu interface.

As an embodiment, the first signaling is used to determine partial scheduling information of the third signal.

As an embodiment, the sentence that the first signaling is used to determine the partial scheduling information of the third signal includes that one or more fields included in the first signaling explicitly indicate the first signaling. The partial scheduling information of the three signals.

As an embodiment, the sentence that the first signaling is used to determine the partial scheduling information of the third signal includes that one or more fields included in the first signaling implicitly indicate the first signaling. The partial scheduling information of the three signals.

As an embodiment, the sentence that the first signaling is used to determine part of the scheduling information of the third signal includes, the first signaling indicates the MCS of the first signal, the MCS of the third signal The MCS is obtained by jointly calculating the MCS of the first signal indicated by the first signaling and the time-frequency resources occupied by the third signal.

As an embodiment, the sentence that the first signaling is used to determine part of the scheduling information of the third signal includes that the first signaling indicates the priority of the first signal, and the third signal The priority of is the same as the priority of the first signal indicated by the first signaling.

As an embodiment, the sentence that the first signaling is used to determine the partial scheduling information of the third signal includes, the first signaling indicates the HARQ process ID of the first signal, the third signal The HARQ process ID of the signal is the same as the HARQ process ID of the first signal indicated by the first signaling.

As an embodiment, the sixth signaling includes one or more fields in the second-stage SCI in the two-stage SCI in a V2X communication.

As an embodiment, the number of information bits carried by the sixth signaling is the same as the number of information bits carried by the fifth signaling.

As an embodiment, the sixth signaling includes a field included in the fifth signaling.

As an embodiment, the sixth signaling includes and only includes the domain included in the fifth signaling.

As an embodiment, the sixth signaling does not include the domain included in the second signaling.

As an embodiment, the sentence, the fourth signal carrying the second bit block includes, the fourth signal is that all or part of the bits in the second bit block are sequentially subjected to CRC attachment, segmentation, and encoding block-level CRC Attachment, channel coding, rate matching, concatenation, scrambling, modulation mapper, layer mapper, transform precoder, precoding, resource element mapper, multicarrier symbol generation, output after some or all of modulation and upconversion .

As an embodiment, the scheduling information of the fourth signal includes {occupied time domain resources, occupied frequency domain resources, MCS, DMRS configuration information, HARQ process ID, RV, NDI, priority} one or more.

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

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

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

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

As an embodiment, the fourth signal is transmitted through the PC5 interface.

As an embodiment, the third signaling is transmitted through the Uu interface.

As an embodiment, the fourth signaling is transmitted through the Uu interface.

As an embodiment, the fifth signaling is transmitted through the Uu interface.

As an embodiment, the sixth signaling is transmitted through the Uu interface.

As an embodiment, the fourth signal is transmitted through a Uu interface.

As an embodiment, the third signaling is transmitted on a secondary link (SideLink).

As an embodiment, the fourth signaling is transmitted on the secondary link.

As an embodiment, the fifth signaling is transmitted on the secondary link.

As an embodiment, the sixth signaling is transmitted on the secondary link.

As an embodiment, the fourth signal is transmitted on the secondary link.

As an embodiment, when the first signaling is detected and the first signal is not detected, when the field included in the fourth signaling indicates that the second signaling is not in the first signaling When sent in three time-frequency resource pools, the second receiver only receives the second signaling and the third signal in the third signal in the third time-frequency resource pool.

As an embodiment, the fourth signaling is PHY layer signaling.

As an embodiment, the fifth signaling is PHY layer signaling.

As an embodiment, the sixth signaling is PHY layer signaling.

As an embodiment, the fourth signaling is higher layer signaling.

As an embodiment, the first signaling is not detected or the first signal is not detected, when the fourth signaling is correctly received, the second node U2 is in the third The time-frequency resource pool receives the fifth signaling.

As a sub-embodiment of the above embodiment, the phrase that the fourth signaling is correctly received includes that the second node U2 performs channel decoding on the fourth signaling, and the decoding of the channel decoding The result passes the CRC check.

As an embodiment, the third signal includes a first reference signal.

As an embodiment, the time-frequency resource occupied by the first reference signal is irrelevant to whether the second signaling is sent.

As an embodiment, the first reference signal is a DMRS.

As an embodiment, the first reference signal implicitly indicates control information of the third signal.

As a sub-embodiment of the above embodiment, the control information that the first reference signal implicitly indicates the third signal in the sentence includes that different cyclic shifts (Cyclic Shifts) of the DMRS correspond to different HARQ process IDs, respectively, The first reference signal includes a DMRS, and the cyclic shift of the DMRS is used to determine the HARQ process ID of the third signal.

As a sub-embodiment of the above embodiment, the control information that the first reference signal implicitly indicates the third signal in the sentence includes that different cyclic shifts of the DMRS correspond to different RV IDs, and the first reference signal The signal includes one DMRS, and the cyclic shift of the DMRS is used to determine the RV ID of the third signal.

As an embodiment, the phrase the first signaling is detected includes that the second node performs channel decoding on the first signaling to determine whether the first signaling is at the first time It is sent in the frequency resource pool, and the decoding result of the channel decoding passes the CRC check.

As an embodiment, the phrase that the first signaling is not detected includes that the second node performs channel decoding on the first signaling to determine whether the first signaling is in the first signaling. It is sent in the time-frequency resource pool, and the decoding result of the channel decoding fails the CRC check.

As an embodiment, the phrase that the first signaling is not detected includes that the second node determines, according to energy detection, whether the first signaling is sent in the first time-frequency resource pool, so The judgment result of the energy detection is less than a first threshold, and the first threshold is a predefined value.

As an embodiment, the phrase that the first signal is detected includes that the second node performs channel decoding on the first signal to determine whether the first signal is in the first time-frequency resource pool is sent in the channel decoding, and the decoding result of the channel decoding passes the CRC check.

As an embodiment, the phrase that the first signal is not detected includes that the second node performs channel decoding on the first signal to determine whether the first signal is in the first time-frequency resource It is sent in the pool, and the decoding result of the channel decoding fails the CRC check.

As an embodiment, the phrase that the first signal is not detected includes that the second node determines whether the first signal is sent in the first time-frequency resource pool according to energy detection, and the energy The detected decision result is less than a first threshold, and the first threshold is a predefined value.

As an embodiment, the phrase abstaining from transmitting the second signal in the second time-frequency resource pool includes the second node maintaining zero transmit power in the second time-frequency resource pool.

As an embodiment, the phrase abstaining from sending the second signaling and the third signal in the third time-frequency resource pool includes that the first node maintains in the third time-frequency resource pool Zero transmit power.

As an embodiment, the phrase said giving up sending the second signaling and the third signal in the third time-frequency resource pool includes that the first node is in the third time-frequency resource pool The sixth signaling and the fourth signal are sent in the .

As an embodiment, the fifth signaling includes only a partial field included in the first signaling.

As an embodiment, all domains included in the second signaling are not included in the fifth signaling, and all domains included in the fifth signaling are not included in the second signaling.

As an embodiment, the number of time-frequency resource elements occupied by the fifth signaling is less than the number of time-frequency resource elements occupied by the first signaling.

As an example, the steps in block F51 in FIG. 5 exist.

As an example, the steps in block F51 in Figure 5 do not exist.

As an example, the steps in block F52 in Figure 5 exist.

As an example, the steps in block F52 in Figure 5 do not exist.

As an example, the steps in block F53 in Figure 5 exist.

As an example, the steps in block F53 in Figure 5 do not exist.

As an example, the steps in block F54 in Figure 5 exist.

As an example, the steps in block F54 in Figure 5 do not exist.

Example 6

Embodiment 6 illustrates a schematic diagram of a process for determining whether the first feedback signaling is sent in the second time-frequency resource pool and the content of sending the first feedback signaling according to an embodiment of the present application, as shown in the accompanying drawings 6 shown.

In Embodiment 6, the first node in this application judges whether the first condition is satisfied in step S61; if the first condition is satisfied, then proceeds to step S62, in the third time-frequency resource pool Send the second signaling and the third signal; otherwise, go to step S63 to determine whether the second condition is satisfied; if the second condition is satisfied, go to step S64, and give up sending in the third time-frequency resource pool For the second signaling, send the third signal in the third time-frequency resource pool; otherwise, go to step S65, when the third condition is satisfied, give up sending the third signal in the third time-frequency resource pool the second signaling and the third signal.

In Embodiment 6, the monitoring result of the second signal in the present application is used to determine the first condition, which one of the second condition and the third condition is satisfied; the The third signal carries the first block of bits.

As an embodiment, the first condition, the second condition and the third condition are mutually exclusive.

As an embodiment, when neither the first condition nor the second condition is satisfied, the third condition is automatically satisfied.

As an example, the first condition includes that the second signal is not detected.

As an embodiment, the second condition includes that the second signal is detected and the second signal indicates that the first block of bits in the present application was not received correctly.

As an embodiment, the third condition includes that the second signal is detected and the second signal indicates that the first block of bits was correctly received.

As an example, the first condition is that the second signal is not detected.

As an embodiment, the second condition is that the second signal is detected and the second signal indicates that the first block of bits was not received correctly.

As an embodiment, the third condition is that the second signal is detected and the second signal indicates that the first block of bits was correctly received.

As an embodiment, the phrase the second signal is detected includes that the first node performs channel decoding on the second signal to determine whether the second signal is in the second time-frequency resource pool is sent in the channel decoding, and the decoding result of the channel decoding passes the CRC check.

As an embodiment, the phrase that the second signal is not detected includes that the first node performs channel decoding on the second signal to determine whether the second signal is in the second time-frequency resource It is sent in the pool, and the decoding result of the channel decoding fails the CRC check.

As an embodiment, the phrase that the second signal is not detected includes that the first node determines whether the second signal is sent in the second time-frequency resource pool according to energy detection, and the energy The detected decision result is less than a first threshold, and the first threshold is a predefined value.

As an embodiment, the phrase that the second signal is detected includes that the first node determines whether the second signal is sent in the second time-frequency resource pool according to energy detection, and the energy detection The decision result of is greater than the first threshold, and the first threshold is a predefined value.

As an embodiment, the second signal includes a HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledge, Hybrid Automatic Repeat Request-Acknowledge).

As an example, the second signal includes an ACK when the second signal indicates that the first block of bits was correctly received.

As an example, the second signal includes a NACK when the second signal indicates that the first block of bits was not received correctly.

As an embodiment, the phrase that the first bit block is not correctly received includes that the decoding result of the first bit block fails the CRC check.

As an embodiment, the phrase that the first bit block is correctly received includes that the decoding result of the first bit block passes the CRC check.

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship between the second signaling, the fourth signaling, the fifth signaling, and the third signal according to an embodiment of the present application, as shown in FIG. 7 . In FIG. 7 , a line with an arrow between two signals indicates that there is a scheduling relationship between the two, and the signal pointed to by the arrow is the scheduled signal.

In Embodiment 7, when any two of the second signaling, the fourth signaling, the fifth signaling, and the third signal are sent, there is only a gap between the two The scheduling relationship in Figure 7.

As an embodiment, the fourth signaling includes scheduling information of the fifth signaling.

As an embodiment, the fourth signaling includes scheduling information of the second signaling.

As an embodiment, the second signaling includes scheduling information of the third signal.

As an embodiment, the fifth signaling includes scheduling information of the third signal.

As an embodiment, the fourth signaling includes scheduling information of the third signal.

As an embodiment, the fourth signaling does not include scheduling information of the third signal.

As an embodiment, when the first condition is satisfied, the second signaling and the fifth signaling are sent together in the third time-frequency resource pool, and the second signaling and the The fifth signaling collectively indicates scheduling information of the third signal.

As an embodiment, one or more fields included in the fifth signaling and one or more fields included in the second signaling respectively indicate different scheduling information.

As an embodiment, when the first condition is satisfied, the fourth signaling, the second signaling and the fifth signaling jointly indicate the scheduling information of the third signal.

As an embodiment, when the second condition is satisfied, the fourth signaling and the fifth signaling jointly indicate scheduling information of the third signal.

As an embodiment, the third signaling and the first signaling jointly indicate scheduling information of the first signal.

Example 8

Embodiment 8 illustrates a schematic diagram of the relationship between the monitoring result of the second signal and the first condition, the second condition and the third condition according to an embodiment of the present application, as shown in FIG. 8 . In Embodiment 8, the monitoring result of the second signal is used to determine the first condition, which of the second condition and the third condition is satisfied.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the The first condition is satisfied when the second signal is not detected; the second condition is satisfied when the second signal is detected and the second signal indicates that the first bit block was not received correctly is satisfied; the third condition is satisfied when the second signal is detected and the second signal indicates that the first bit block was received correctly.

As an embodiment, the first node in this application monitors a first signal set in the second time-frequency resource pool, where the first signal set includes K sub-signals, and the senders of the K sub-signals are different from the sender of the second signal.

As one embodiment, any of the K sub-signals is a baseband signal.

As an embodiment, any of the K sub-signals is a wireless signal.

As one embodiment, any of the K sub-signals are transmitted on one PSFCH.

As an embodiment, the K sub-signals are HARQ-ACKs sent by K different senders respectively.

As one embodiment, any of the K sub-signals is used to indicate whether the first block of bits was received correctly.

As an embodiment, any of the K sub-signals includes an ACK or NACK.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes that the first condition is satisfied. The monitoring results of the two signals and the monitoring results of the K sub-signals are used together to determine the first condition, which of the second condition and the third condition is satisfied.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the The first condition is satisfied when the second signal is not detected or any of the K sub-signals is not detected.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the The second condition is satisfied when the second signal and the K sub-signals are all detected and either the second signal or the K sub-signals indicates that the first bit block was not received correctly .

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the The third condition is satisfied when the second signal and the K sub-signals are all detected and the second signal and the K sub-signals all indicate that the first bit block was received correctly.

As an embodiment, the first condition includes that the second signal is not detected or any of the K sub-signals is not detected.

As an embodiment, the second condition includes that the second signal and the K sub-signals are all detected and either the second signal or the K sub-signals indicates the first bit block not received correctly.

As an embodiment, the third condition includes that the second signal and the K sub-signals are all detected and that the second signal and the K sub-signals all indicate that the first bit block is correctly received.

As an embodiment, the senders of the K sub-signals are some or all of the receivers of a multicast message.

As an embodiment, the senders of the K sub-signals satisfy a communication range requirement.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes that the second signal When the number of undetected signals in the set is greater than N, the first condition is satisfied; wherein, the N is a positive value, and the second signal set includes and only includes the second signal and the K sub-signals.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the When the number of undetected signals in the second set of signals is not greater than the N and any of all detected signals in the second set indicates that the first bit block is not correctly received, the The second condition described above is satisfied.

As an embodiment, the monitoring result of the second signal of the sentence is used to determine the first condition, and which one of the second condition and the third condition is satisfied includes, when the The third condition is satisfied when the number of undetected signals in the second signal set is not greater than the N and all the detected signals in the second set indicate that the first bit block is correctly received .

As an example, the N is predefined.

As an embodiment, the N is indicated by dynamic signaling.

As an embodiment, the N is indicated by higher layer signaling.

Example 9

Embodiment 9 illustrates the time domain resources occupied by the third signaling, the time domain resources occupied by the fourth signaling, the time domain resources occupied by the first time-frequency resource pool, and the second A schematic diagram of the relationship between the time-domain resources occupied by the time-frequency resource pool and the time-domain resources occupied by the third time-frequency resource pool is shown in FIG. 9 . In FIG. 9, diagonally filled rectangles represent time domain resources. In particular, the part in the dotted box may be included in other time domain resources represented by the diagonally filled rectangle.

As an embodiment, the third signaling is not sent in the first time-frequency resource pool.

As an embodiment, the fourth signaling is not sent in the third time-frequency resource pool.

As an embodiment, from the perspective of the time domain, the first time-frequency resource pool is before the second time-frequency resource pool.

As an embodiment, from a time domain perspective, the third signaling precedes the first time-frequency resource pool.

As an embodiment, from a time domain perspective, the fourth signaling precedes the third time-frequency resource pool.

As an embodiment, from the perspective of the time domain, the second time-frequency resource pool is before the third time-frequency resource pool.

As an embodiment, the time domain resources occupied by the third signaling, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, the The time domain resources occupied by the fourth signaling and the time domain resources occupied by the third time-frequency resource pool are arranged in sequence in the time domain, and any two of them do not overlap in the time domain.

As an embodiment, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, and the time domain resources occupied by the third time-frequency resource pool are in Arranged sequentially in the time domain, and any two of them do not overlap in the time domain.

As an embodiment, the time domain resources occupied by the third signaling, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, the The time domain resources occupied by the fourth signaling and the time domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of OFDM symbols.

As an embodiment, the time domain resources occupied by the third signaling, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, the The time domain resources occupied by the fourth signaling and the time domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of time slots.

As an embodiment, the time domain resources occupied by the third signaling, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, the The time domain resources occupied by the fourth signaling and the time domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of subframes (Subframes).

As an embodiment, the time domain resources occupied by the third signaling, the time domain resources occupied by the first time-frequency resource pool, the time domain resources occupied by the second time-frequency resource pool, the The time domain resources occupied by the fourth signaling and the time domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of milliseconds (ms).

As an embodiment, the frequency domain resources occupied by the third signaling, the frequency domain resources occupied by the first time-frequency resource pool, the frequency domain resources occupied by the second time-frequency resource pool, the The frequency domain resources occupied by the fourth signaling and the frequency domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of SCs.

As an embodiment, the frequency domain resources occupied by the third signaling, the frequency domain resources occupied by the first time-frequency resource pool, the frequency domain resources occupied by the second time-frequency resource pool, the The frequency domain resources occupied by the fourth signaling and the frequency domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the third signaling, the frequency domain resources occupied by the first time-frequency resource pool, the frequency domain resources occupied by the second time-frequency resource pool, the The frequency domain resources occupied by the fourth signaling and the frequency domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of RBs.

As an embodiment, the frequency domain resources occupied by the third signaling, the frequency domain resources occupied by the first time-frequency resource pool, the frequency domain resources occupied by the second time-frequency resource pool, the The frequency domain resources occupied by the fourth signaling and the frequency domain resources occupied by the third time-frequency resource pool respectively include a positive integer number of PRBs.

As an embodiment, the frequency domain resources occupied by the third signaling, the frequency domain resources occupied by the first time-frequency resource pool, the frequency domain resources occupied by the second time-frequency resource pool, the The frequency domain resources occupied by the fourth signaling and the frequency domain resources occupied by the third time-frequency resource pool respectively include positive integer subchannels.

As an embodiment, the frequency domain resource occupied by the third signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the third signaling include a positive integer number of REGs.

As an embodiment, the frequency domain resource occupied by the fourth signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the fourth signaling include a positive integer number of REGs.

As an embodiment, the frequency domain resource occupied by the first signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the first signaling include a positive integer number of REGs.

As an embodiment, the frequency domain resource occupied by the second signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the second signaling include a positive integer number of REGs.

As an embodiment, the frequency domain resource occupied by the fifth signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the fifth signaling include a positive integer number of REGs.

As an embodiment, the frequency domain resource occupied by the sixth signaling includes a positive integer number of CCEs.

As an embodiment, the frequency domain resources occupied by the sixth signaling include a positive integer number of REGs.

Example 10

Embodiment 10 illustrates a schematic diagram of the relationship between the time-frequency resources occupied by the second signaling and the time-frequency resources occupied by the third signal according to the present application, as shown in FIG. 10 . In FIG. 10 , the diagonally filled rectangle and the gray rectangle respectively represent the time-frequency resources occupied by the third signal and the time-frequency resources occupied by the second signaling.

In Embodiment 10, both the second signaling and the third signal are sent in the third time-frequency resource pool.

As an embodiment, from the perspective of the time domain, the start time of sending the second signaling is not later than the start time of sending the third signal.

As an embodiment, from the perspective of the time domain, the sending end time of the third signal is later than the sending end time of the second signaling.

As an embodiment, from the perspective of the time domain, the start time of sending the third signal is later than the end time of sending the second signaling.

As an embodiment, the second signaling and the third signal are sent on the same PSSCH.

As an embodiment, the frequency domain resource occupied by the second signaling is a subset of the frequency domain resource occupied by the third signal.

As an embodiment, the time domain resource occupied by the second signaling is a subset of the time domain resource occupied by the third signal.

As an embodiment, the time domain resources occupied by the second signaling and the time domain resources occupied by the third signal are orthogonal to each other.

As an embodiment, the frequency domain resources occupied by the second signaling and the frequency domain resources occupied by the third signal are orthogonal to each other.

As an embodiment, the time-frequency resources occupied by the second signaling do not overlap with the time-frequency resources occupied by the third signal.

Example 11

Embodiment 11 illustrates a schematic diagram of the relationship between the time-frequency resources occupied by the second signaling according to the present application, the time-frequency resources occupied by the fifth signaling, and the time-frequency resources occupied by the third signaling, as shown in FIG. 11 . shown. In FIG. 11, the rectangle filled with diagonal stripes represents the time-frequency resources occupied by the third signal; when the second signaling is sent, the gray rectangle and the rectangle filled with horizontal and vertical stripes together represent the second signaling and The time-frequency resources occupied by the fifth signaling; when the second signaling is not sent, the rectangle filled with horizontal and vertical stripes represents the time-frequency resources occupied by the fifth signaling, and the gray rectangle represents the third signaling. The time-frequency resources occupied by the signal.

In Embodiment 11, both the fifth signaling and the third signal are sent in the third time-frequency resource pool.

As an embodiment, from the perspective of the time domain, the start time of sending the fifth signaling is not later than the start time of sending the third signal.

As an embodiment, from the perspective of the time domain, the sending end time of the third signal is later than the sending end time of the fifth signaling.

As an embodiment, from the perspective of the time domain, the start time of sending the third signal is later than the end time of sending the fifth signaling.

As an embodiment, when the second signaling is sent, the second signaling, when the fifth signaling and the third signal are sent on the same PSSCH.

As an embodiment, the fifth signaling and the third signal are sent on the same PSSCH.

As an embodiment, the frequency domain resource occupied by the fifth signaling is a subset of the frequency domain resource occupied by the third signal.

As an embodiment, the time domain resource occupied by the fifth signaling is a subset of the time domain resource occupied by the third signal.

As an embodiment, the time domain resources occupied by the fifth signaling and the time domain resources occupied by the third signal are orthogonal to each other.

As an embodiment, the frequency domain resources occupied by the fifth signaling and the frequency domain resources occupied by the third signal are orthogonal to each other.

As an embodiment, the time-frequency resources occupied by the fifth signaling do not overlap with the time-frequency resources occupied by the third signal.

As an embodiment, the number of time-frequency resource elements occupied by the third signal when the second signaling is sent is less than the number of time-frequency resource elements occupied by the third signal when the second signaling is not sent The number of time-frequency resource particles occupied.

As an embodiment, the frequency domain resources occupied by the first signaling include a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the first signaling include a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the first signaling includes a positive integer number of RBs.

As an embodiment, the frequency domain resource occupied by the first signaling includes a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the first signaling includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the first signaling includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the first signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the first signaling includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the second signaling includes a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the second signaling include a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the second signaling includes a positive integer number of RBs.

As an embodiment, the frequency domain resources occupied by the second signaling include a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the second signaling includes a positive integer number of subchannels.

As an embodiment, the time domain resources occupied by the second signaling include a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the second signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the second signaling includes a positive integer number of slots.

As an embodiment, the time domain resource occupied by the third signaling includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the third signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the third signaling includes a positive integer number of slots.

As an embodiment, the time domain resource occupied by the fourth signaling includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the fourth signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the fourth signaling includes a positive integer number of slots.

As an embodiment, the frequency domain resources occupied by the fifth signaling include a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the fifth signaling include a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the fifth signaling includes a positive integer number of RBs.

As an embodiment, the frequency domain resource occupied by the fifth signaling includes a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the fifth signaling includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the fifth signaling includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the fifth signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the fifth signaling includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the sixth signaling includes a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the sixth signaling include a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the sixth signaling includes a positive integer number of RBs.

As an embodiment, the frequency domain resource occupied by the sixth signaling includes a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the sixth signaling includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the sixth signaling includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the sixth signaling includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the sixth signaling includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of REs.

As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of RBs.

As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the first signal includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the first signal includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the first signal includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the second signal includes a positive integer number of REs.

As an embodiment, the frequency domain resource occupied by the second signal includes a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the second signal includes a positive integer number of RBs.

As an embodiment, the frequency domain resources occupied by the second signal include a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the second signal includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the second signal includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the second signal includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the second signal includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the third signal includes a positive integer number of REs.

As an embodiment, the frequency domain resources occupied by the third signal include a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the third signal includes a positive integer number of RBs.

As an embodiment, the frequency domain resource occupied by the third signal includes a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the third signal includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the third signal includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the third signal includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the third signal includes a positive integer number of slots.

As an embodiment, the frequency domain resource occupied by the fourth signal includes a positive integer number of REs.

As an embodiment, the frequency domain resource occupied by the fourth signal includes a positive integer number of PRBs.

As an embodiment, the frequency domain resource occupied by the fourth signal includes a positive integer number of RBs.

As an embodiment, the frequency domain resources occupied by the fourth signal include a positive integer number of SCs.

As an embodiment, the frequency domain resource occupied by the fourth signal includes a positive integer number of subchannels.

As an embodiment, the time domain resource occupied by the fourth signal includes a positive integer number of OFDM symbols.

As an embodiment, the time domain resource occupied by the fourth signal includes a positive integer number of ms.

As an embodiment, the time domain resource occupied by the fourth signal includes a positive integer number of slots.

Example 12

Embodiment 12 illustrates a schematic diagram of the relationship between the time-frequency resources occupied by the first time-frequency resource pool and the time-frequency resources occupied by the second time-frequency resource pool according to the present application, as shown in FIG. 12 . In FIG. 12, diagonally filled rectangles represent time-frequency resources.

As an embodiment, associating the sentence second time-frequency resource pool with the first time-frequency resource pool includes that the time-frequency resources occupied by the second time-frequency resource pool are associated with the first time-frequency resource The time-frequency resources occupied by the resource pool, and the association rules between the two are predefined.

As an embodiment, associating the sentence second time-frequency resource pool with the first time-frequency resource pool includes that the time-frequency resources occupied by the second time-frequency resource pool are associated with the first time-frequency resource The time-frequency resources occupied by the resource pool and the association rules between the two are indicated by higher layer signaling.

As an embodiment, associating the sentence second time-frequency resource pool with the first time-frequency resource pool includes, after the time-frequency resources occupied by the first time-frequency resource pool are determined, the second time-frequency resource pool The time-frequency resources occupied by the time-frequency resource pool are also implicitly determined.

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool are a subset of the frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool overlap with the frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool do not overlap with the frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool are different from the frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the frequency domain resources occupied by the second time-frequency resource pool are the same as the frequency domain resources occupied by the first time-frequency resource pool.

As an embodiment, the first time-frequency resource pool includes a PSSCH, and the second time-frequency resource pool includes a PSFCH corresponding to the PSSCH.

As an embodiment, the second time-frequency resource pool is reserved for the HARQ-ACK corresponding to the first signal transmitted in the first time-frequency resource pool, and within the first time-frequency resource pool The HARQ-ACK corresponding to the transmitted first signal is transmitted in the second time-frequency resource pool.

As an embodiment, the second time-frequency resource pool is reserved for the HARQ-ACK corresponding to the first signal transmitted in the first time-frequency resource pool, and within the first time-frequency resource pool The HARQ-ACK corresponding to the transmitted first signal cannot be transmitted in time-frequency resources other than the second time-frequency resource pool.

Example 13

Embodiment 13 illustrates a structural block diagram of a processing apparatus used in a first node device according to an embodiment of the present application, as shown in FIG. 13 . In FIG. 13 , the processing apparatus 1300 in the first node device includes a first receiver 1301 and a first transmitter 1302 .

In Embodiment 13, the first transmitter 1302 sends the first signaling and the first signal in the first time-frequency resource pool, and the first signal carries the first bit block; judges whether the third time-frequency The second signaling and the third signaling are sent in the resource pool.

In Embodiment 13, the first receiver 1301 monitors a second signal in the second time-frequency resource pool, and the second signal indicates whether the first bit block is correctly received; when the first condition is satisfied When the first transmitter 1302 determines to send the second signaling and the third signal in the third time-frequency resource pool; when the second condition is satisfied, the first transmitter 1302 gives up The second signaling is sent in the third time-frequency resource pool, and the first transmitter 1302 determines to send the third signal in the third time-frequency resource pool; when the third condition is satisfied , the first transmitter 1302 gives up sending the second signaling and the third signal in the third time-frequency resource pool; the monitoring result of the second signal is used to determine the first condition , which of the second condition and the third condition is satisfied.

In Embodiment 13, the first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes scheduling information of the third signal .

As an embodiment, the first transmitter 1302 sends third signaling, where the third signaling includes scheduling information of the first signaling.

As an embodiment, when the first condition or the second condition is satisfied, the first transmitter 1302 sends fourth signaling; the fourth signaling includes a field, and the fourth signaling The included field indicates whether the second signaling is sent in the third time-frequency resource pool; when the first condition is satisfied, the fourth signaling includes the second signaling scheduling information.

As an embodiment, when the first condition or the second condition is satisfied, the first transmitter 1302 sends fifth signaling in the third time-frequency resource pool, where the fifth signaling includes scheduling information of the third signal.

As an embodiment, if the third condition is satisfied, the first transmitter 1302 sends a sixth signaling and a fourth signal in the third time-frequency resource pool; wherein the fourth signal carries the second signal bit block, the sixth signaling includes scheduling information of the fourth signal, and the number of information bits carried by the sixth signaling is less than that carried by the second signaling and the fifth signaling. The number of information bits.

As an embodiment, the first signaling is the second stage of the two-stage SCI in a V2X communication, and the first signaling and the first signal are sent on the same PSSCH; when the The second signal is not monitored, the third signal and the second signaling are sent on the same PSSCH, wherein the second signaling is two of one V2X communication for the third signal The second stage SCI in the stage SCI; when the second signal is listened to and the second signal includes a NACK for the first signal, the third signal is sent on a PSSCH, carrying the first signal. The PSSCH of the third signal does not include scheduling information of the third signal.

As an embodiment, the first signaling is the second stage of the two-stage SCI in a V2X communication, and the first signaling and the first signal are sent on the same PSSCH; when the The second signal is not monitored, the third signal, the second signaling and the fifth signaling are sent on the same PSSCH, wherein the second signaling and the fifth signaling are respectively Including one or more fields of the second stage SCI in the two-stage SCI in a V2X communication for the third signal, all fields included in the second signaling are not included in the fifth signaling , all domains included in the fifth signaling are not included in the second signaling; when the second signal is monitored and the second signal includes a NACK for the first signal, the The third signal and the fifth signal are transmitted on the same PSSCH, and there is no other signal on the PSSCH carrying the third signal and the fifth signal except the third signal and the fifth signal When any signal is transmitted, the number of time-frequency resource elements occupied by the fifth signaling is less than the number of time-frequency resource elements occupied by the first signaling.

As an embodiment, the first signaling is the second stage of the two-stage SCI in a V2X communication, and the first signaling and the first signal are sent on the same PSSCH; when the When the first condition is satisfied, the third signal and the second signaling are sent on the same PSSCH, wherein the second signaling is a two-phase in a V2X communication for the third signal The second stage SCI in the SCI; when the second condition is satisfied, the third signal is sent on a PSSCH, and the PSSCH carrying the third signal does not include the scheduling information of the third signal ; The monitoring result of the second signal is used to determine the first condition, which of the second condition and the third condition is satisfied.

As an embodiment, the first signaling is the second stage of the two-stage SCI in a V2X communication, and the first signaling and the first signal are sent on the same PSSCH; when the When the first condition is satisfied, the third signaling, the second signaling and the fifth signaling are sent on the same PSSCH, wherein the second signaling and the fifth signaling are respectively Including one or more fields of the second stage SCI in the two-stage SCI in a V2X communication for the third signal, all fields included in the second signaling are not included in the fifth signaling , all domains included in the fifth signaling are not included in the second signaling; when the second condition is satisfied, the third signal and the fifth signal are transmitted on the same PSSCH Sending, no other signal other than the third signal and the fifth signal is transmitted on the PSSCH carrying the third signal and the fifth signal, and the time occupied by the fifth signaling The number of frequency resource elements is less than the number of time-frequency resource elements occupied by the first signaling; the monitoring result of the second signal is used to determine the first condition, the second condition and the third condition Which of the conditions is satisfied includes.

As an embodiment, the phrase giving up sending the second signaling in the third time-frequency resource pool includes that all domains included in the second signaling are not used on the PSSCH carrying the third signal. transmission.

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

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

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

As an embodiment, the first receiver 1301 includes {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller/processor 459, memory 460, data source in Embodiment 4 467} at least one.

As an embodiment, the first transmitter 1302 includes {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller/processor 459, memory 460, data source in Embodiment 4 467} at least one.

Example 14

Embodiment 14 illustrates a structural block diagram of a processing apparatus used in a second node device according to an embodiment of the present application, as shown in FIG. 14 . In FIG. 14 , the processing apparatus 1400 in the second node device includes a second receiver 1402 and a second transmitter 1401 .

In Embodiment 14, the second receiver 1402 monitors a first signaling and a first signal in a first time-frequency resource pool, where the first signal carries a first bit block, and the first signaling includes scheduling information of the first signal.

In Embodiment 14, the second transmitter 1401 determines whether to transmit the second signal in the second time-frequency resource pool.

In Embodiment 14, when the first signaling is detected and the first signal is not detected, the second transmitter 1401 determines to transmit the first signaling in the second time-frequency resource pool two signals, the second signal indicates that the first bit block is not correctly received, the second receiver 1402 monitors the second signaling and the third signal in the third time-frequency resource pool; When signaling is detected and the first signal is detected, the second transmitter 1401 determines to send the second signal in the second time-frequency resource pool, where the second signal indicates the first One bit block is correctly received; when the first signaling is not detected, the second transmitter 1401 abandons transmitting the second signal in the second time-frequency resource pool, the second receiving The engine 1402 monitors the second signaling and the third signal in the third time-frequency resource pool.

In Embodiment 14, the second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.

As an embodiment, the second receiver 1402 receives third signaling, where the third signaling includes scheduling information of the first signaling.

As an embodiment, when the first signaling is not detected or the first signal is not detected, the second receiver 1402 receives fourth signaling; wherein the fourth signaling includes a field , the field included in the fourth signaling indicates whether the second signaling is sent in the third time-frequency resource pool.

As an embodiment, when the first signaling is detected and the first signal is not detected, when the field included in the fourth signaling indicates that the second signaling is not in the first signaling When sent in three time-frequency resource pools, the second receiver 1402 only receives the second signaling and the third signal in the third signal in the third time-frequency resource pool.

As an embodiment, the first signaling is not detected or the first signal is not detected, the second receiver 1402 receives fifth signaling in the third time-frequency resource pool, the The fifth signaling includes scheduling information of the third signal.

As an embodiment, the first signal is detected, and the second receiver 1402 receives a sixth signaling and a fourth signal in the third time-frequency resource pool; wherein, the fourth signal carries the first signal A two-bit block, the sixth signaling includes scheduling information of the fourth signal, and the number of information bits carried by the sixth signaling is less than the number of information bits carried by the second signaling and the fifth signaling the number of information bits.

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

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

As an embodiment, the second receiver 1402 includes at least one of {antenna 420, receiver 418, receiving processor 470, channel decoder 478, controller/processor 475, memory 476} in Embodiment 4 one.

As an embodiment, the second transmitter 1401 includes at least one of {antenna 420, transmitter 418, transmit processor 416, channel encoder 477, controller/processor 475, memory 476} in Embodiment 4 one.

Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific form of the combination of software and hardware. User equipment, terminals and UEs in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, in-vehicle communication equipment, wireless sensors, network cards, IoT terminal, RFID terminal, NB-IOT terminal, MTC (Machine Type Communication, machine type communication) terminal, eMTC (enhanced MTC, enhanced MTC) terminal, data card, network card, vehicle communication equipment, low-cost mobile phone, low Wireless communication devices such as tablet PCs. The base station or system equipment in this application includes but is not limited to macro cell base station, micro cell base station, home base station, relay base station, gNB (NR Node B) NR Node B, TRP and other wireless communication equipment.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

A first node device used for wireless communication, characterized in that it includes:

The first transmitter sends the first signaling and the first signal in the first time-frequency resource pool, and the first signal carries the first bit block; and judges whether to send the second signaling and the first signal in the third time-frequency resource pool. the third signal;

The first receiver monitors a second signal in the second time-frequency resource pool, the second signal indicates whether the first bit block is correctly received; when the first condition is satisfied, the first transmitter judges Send the second signaling and the third signal in the third time-frequency resource pool; when the second condition is satisfied, the first transmitter gives up sending in the third time-frequency resource pool In the second signaling, the first transmitter determines to send the third signal in the third time-frequency resource pool; when the third condition is satisfied, the first transmitter aborts the transmission of the third signal in the third time-frequency resource pool. The second signaling and the third signal are sent in the three time-frequency resource pools; the monitoring result of the second signal is used to determine the first condition, the second condition and the third condition are which of the conditions is satisfied;

The first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes scheduling information of the third signal.
The first node according to claim 1, wherein the first transmitter sends third signaling, and the third signaling includes scheduling information of the first signaling.
The first node according to any one of claims 1 or 2, wherein when the first condition or the second condition is satisfied, the first transmitter sends a fourth signaling; Wherein, when the first condition is satisfied, the fourth signaling includes scheduling information of the second signaling.
The first node according to claim 3, wherein the fourth signaling includes a field, and the field included in the fourth signaling indicates whether the second signaling is in the third signaling It is sent in the time-frequency resource pool.
The first node according to any one of claims 1 to 4, wherein when the first condition or the second condition is satisfied, the first transmitter is at the third time The frequency resource pool sends fifth signaling, where the fifth signaling includes scheduling information of the third signal.
The first node according to claim 5, wherein when the third condition is satisfied, the first transmitter sends a sixth signaling and a fourth signal in the third time-frequency resource pool; wherein , the fourth signal carries a second bit block, the sixth signaling includes scheduling information of the fourth signal, and the number of information bits carried by the sixth signaling is less than the second signaling and The number of information bits commonly carried by the fifth signaling.
The first node according to any one of claims 1 to 6, wherein the resources occupied by the second time-frequency resource pool are related to the resources occupied by the first time-frequency resource pool.
A second node device used for wireless communication, characterized in that it includes:

a second receiver, monitoring a first signaling and a first signal in a first time-frequency resource pool, where the first signal carries a first bit block, and the first signaling includes scheduling information of the first signal;

a second transmitter, determining whether to transmit the second signal in the second time-frequency resource pool;

When the first signaling is detected and the first signal is not detected, the second transmitter determines to transmit the second signal in the second time-frequency resource pool, and the second The signal indicates that the first bit block is not correctly received, and the second receiver monitors the second signaling and the third signal in the third time-frequency resource pool; when the first signaling is detected and the When the first signal is detected, the second transmitter determines to send the second signal in the second time-frequency resource pool, and the second signal indicates that the first bit block is correctly received; When the first signaling is not detected, the second transmitter gives up sending the second signal in the second time-frequency resource pool, and the second receiver in the third time-frequency resource pool monitoring the second signaling and the third signal in the middle;

Wherein, the second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.
A method for a first node device used in wireless communication, comprising:

Send the first signaling and the first signal in the first time-frequency resource pool, where the first signal carries the first bit block; determine whether to send the second signaling and the third signal in the third time-frequency resource pool;

Monitor a second signal in the second time-frequency resource pool, the second signal indicates whether the first bit block is correctly received; when the first condition is satisfied, determine to send in the third time-frequency resource pool the second signaling and the third signal; when the second condition is satisfied, give up sending the second signaling in the third time-frequency resource pool, and determine that the third time-frequency resource pool is in the third time-frequency resource pool send the third signal in the third time-frequency resource pool; when the third condition is satisfied, give up sending the second signaling and the third signal in the third time-frequency resource pool; the monitoring result of the second signal is for determining which of the first condition, the second condition and the third condition is satisfied;

The first signaling includes scheduling information of the first signal, the third signal carries the first bit block, and the second signaling includes scheduling information of the third signal.
A method for a second node device used in wireless communication, comprising:

monitoring a first signaling and a first signal in a first time-frequency resource pool, where the first signal carries a first bit block, and the first signaling includes scheduling information of the first signal;

determining whether to send the second signal in the second time-frequency resource pool;

When the first signaling is detected and the first signal is not detected, it is determined to send the second signal in the second time-frequency resource pool, and the second signal indicates the first signal If the bit block is not received correctly, the second signaling and the third signal are monitored in the third time-frequency resource pool; when the first signaling is detected and the first signal is detected, it is determined that the The second signal is sent in the second time-frequency resource pool, and the second signal indicates that the first bit block is correctly received; when the first signaling is not detected, it is abandoned at the second time sending the second signal in the frequency resource pool, and monitoring the second signaling and the third signal in the third time-frequency resource pool;

Wherein, the second signaling includes scheduling information of the third signal, and the third signal carries the first bit block.