WO2024027609A1

WO2024027609A1 - Method and apparatus used in node for wireless communication

Info

Publication number: WO2024027609A1
Application number: PCT/CN2023/110081
Authority: WO
Inventors: 刘瑾; 张晓博
Original assignee: 上海朗帛通信技术有限公司
Priority date: 2022-08-01
Filing date: 2023-07-31
Publication date: 2024-02-08
Also published as: CN117544284A

Abstract

Disclosed in the present application are a method and apparatus used in a node for wireless communication. The method comprises: a first node sending, on a first PSCCH, first-level control information; and sending, on the first PSSCH, at least the former of second-level control information and first data, wherein the first-level control information is used for determining the first PSSCH; and the first-level control information comprises a first field, the first field being used for determining the format of the second-level control information, the candidates of the format of the second-level control information comprising SCI format 2-A, SCI format 2-B, SCI format 2-C and a first information format, and the first information format comprising information related to decoding the first data. The present application solves the problem of identification of decoupled control information and SL data.

Description

Method and device used in wireless communication nodes

Technical field

The present application relates to transmission methods and devices in wireless communication systems, and in particular to transmission schemes and devices related to sidelinks in wireless communications.

Background technique

Starting from LTE (Long Term Evolution, Long Term Evolution), 3GPP (3rd Generation Partner Project, the third generation partner project) has been developing SL (Sidelink, secondary link) as a direct communication method between users, and The first NR SL (New Radio Sidelink, New Radio Sidelink) standard of "5G V2X with NR Sidelink" was completed in Rel-16 (Release-16, version 16). In Rel-16, NR SL is mainly designed for V2X (Vehicle-To-Everything, Internet of Vehicles), but it can also be used for Public Safety (Public Safety). As NR SL is further enhanced, Rel-17 introduces periodic-based partial sensing (PBPS), continuous partial sensing (CPS), random selection and discontinuous reception (Discontinuous Reception, DRX) and other power saving schemes have also introduced a variety of inter-UE coordination schemes to provide more reliable channel resources.

In order to meet commercial application scenarios, the industry has put forward new requirements for V2X, including higher data throughput and support for new carrier frequencies. Therefore, at the 3GPP RAN-#94e meeting, the Work Item Description (WID) RP-213678 for the evolution of NR SL was adopted, officially starting the standardization work of NR V2X Rel-18.

Contents of the invention

According to the work plan in RP-213678, NR Rel-18 needs to support SL carrier aggregation (Carrier Aggregation, CA) technology and multi-beam (Multi-beam) technology. The data and control information of each user (UE, User Equipment) may Different resource pools, carrier components and beam transmissions are used. In the existing NR Rel-16/17 system, users transmit the first-level SCI on the PSCCH and the second-level SCI and SL data on the PSSCH. The PSCCH and PSSCH are coupled in a continuous time-frequency resource. . When users use different resource pools, different bandwidth parts (Bandwidth Part, BWP), different carrier components (Carrier Component, CC) or different beams to transmit control information and SL data, it may cause the opposite end user to be unable to identify the solution. Coupled resources reduce the reliability of SL transmission.

In response to the above problems, this application discloses a method for controlling information indication, thereby enabling the opposite end user to effectively identify decoupling resources and improve the reliability of SL transmission. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the user equipment of the present application can be applied to the base station, and vice versa. The embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily without conflict. Furthermore, although the original intention of this application is for SL, this application can also be used for UL (Uplink). Furthermore, although the original intention of this application is for single-carrier communication, this application can also be used for multi-carrier communication. Furthermore, although the original intention of this application is for single-antenna communication, this application can also be used for multi-antenna communication. Furthermore, although the original intention of this application is for V2X scenarios, this application is also applicable to communication scenarios between terminals and base stations, terminals and relays, and relays and base stations, achieving similar technical effects in V2X scenarios. In addition, using unified solutions for different scenarios (including but not limited to V2X scenarios and communication scenarios between terminals and base stations) can also help reduce hardware complexity and costs.

It should be noted that the interpretation of terms (Terminology) in this application refers to the definitions in the 3GPP standard protocols TS36 series, TS37 series and TS38 series, but it can also refer to the IEEE (Institute of Electrical and Electronics Engineers, Electrical and Electronic Engineers) association).

This application discloses a method used in a first node of wireless communication, which is characterized by including:

Send first-level control information on the first PSCCH;

sending at least the former of the second-level control information and the first data on the first PSSCH;

Wherein, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is used to Determine the format of the second-level control information, and candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data .

As an embodiment, the problem to be solved by this application is: when users use decoupled resources to transmit control information and SL data respectively, it may cause the opposite end user to be unable to identify the decoupled resources, resulting in reduced reliability of SL transmission.

As an embodiment, the method of this application is: introducing a first information format.

As an embodiment, the method of this application is: establishing a relationship between the first information format and the first domain.

As an embodiment, the method of this application is to construct a mapping relationship between the value of the first domain and the format candidate of the second-level control information.

As an embodiment, the advantage of the above method is that it enables the opposite end user to effectively identify the decoupling resources and improves the reliability of SL transmission.

According to one aspect of the present application, the above method is characterized in that whether the first data is carried on the first PSSCH is related to the format of the second-level control information; The format is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, and the first data is carried on the first PSSCH, or , the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.

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

sending the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is carried on the first PSSCH; The second PSSCH is different from the first PSSCH.

According to one aspect of the present application, the above method is characterized in that the second PSSCH and the first PSSCH respectively belong to two different resource pools.

According to one aspect of the present application, the above method is characterized in that the second PSSCH and the first PSSCH are respectively associated with two different spatial filters (Spatial Filters).

According to one aspect of the present application, the above method is characterized in that the format of the second-level control information is the first information format, and the second-level control information is used to determine the second PSSCH.

According to an aspect of the present application, the above method is characterized in that the format of the second level control information is the first information format, and the second level control information is used to determine the second PSSCH associated spatial filter.

According to one aspect of the present application, the above method is characterized in that the first-level control information is the first-level SCI (1st-stage SCI), and the format of the first-stage control information is SCI format 1-A, or, The format of the first-level control information is SCI format 1-B.

According to one aspect of the present application, the above method is characterized in that the first information format is SCI format 2-D (SCI format 2-D).

According to one aspect of the present application, the above method is characterized in that the first information format includes a second field, and the second field is used to determine whether the first data is carried on the first PSSCH.

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

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

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

This application discloses a method used in a second node of wireless communication, which is characterized by including:

receiving first-level control information on the first PSCCH;

receiving at least the former of the second level control information and the first data on the first PSSCH;

According to one aspect of the present application, the above method is characterized in that whether the first data is carried on the first PSSCH is related to the format of the second-level control information; The format is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, the first data is on the first PSSCH, or the The format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.

receiving the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is on the first PSSCH; The second PSSCH is different from the first PSSCH.

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

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

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

This application discloses a first node used for wireless communication, which is characterized by including:

The first transmitter sends the first-level control information on the first PSCCH;

a second transmitter that sends at least the former of the second-level control information and the first data on the first PSSCH;

This application discloses a second node used for wireless communication, which is characterized in that it includes:

The first receiver receives the first-level control information on the first PSCCH;

a second receiver that receives at least the former of the second-level control information and the first data on the first PSSCH;

As an example, this application has the following advantages:

-The problem to be solved by this application is: when users use decoupled resources to transmit control information and SL data separately, it may cause the opposite end user to be unable to identify the decoupled resources, resulting in reduced reliability of SL transmission.

-This application introduces the first information format.

-This application establishes a relationship between the first information format and the first domain.

-This application constructs a mapping relationship between the value of the first domain and the format candidate of the second-level control information.

-In this application, the peer user can effectively identify the decoupled resources and improve the reliability of SL transmission.

Description of drawings

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

Figure 1 shows a processing flow chart of a first node according to an embodiment of the present application;

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

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

Figure 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 wireless signal transmission flow chart according to an embodiment of the present application;

Figure 6 shows a schematic diagram of the relationship between the first domain and the first information format according to one embodiment of the present application;

Figure 7 shows a schematic diagram of the relationship between the first PSCCH, the first PSSCH and the second PSSCH according to an embodiment of the present application;

Figure 8 shows a schematic diagram of the relationship between the first PSCCH, the first PSSCH and the second PSSCH according to an embodiment of the present application;

Figure 9 shows a schematic diagram of the relationship between first-level control information, second-level control information and first data according to an embodiment of the present application;

Figure 10 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

Figure 11 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application.

Detailed ways

The technical solution of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, as long as there is no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Example 1

Embodiment 1 illustrates a processing flow chart of the first node according to an embodiment of the present application, as shown in Figure 1. In Figure 1, each box represents a step.

In Embodiment 1, the first node in this application first performs step 101 to send first-level control information on the first PSCCH; then performs step 102 to send second-level control information and first data on the first PSSCH. At least the former of the two; the first level control information is used to determine the first PSSCH; the first level control information includes a first field, the first field includes two information bits, and the first level control information A field is used to determine the format of the second-level control information. Candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and first Information format; the SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes decoding the Information about the first data.

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

As an embodiment, the first PSCCH includes at least one multi-carrier symbol (Symbol) in the time domain.

As an embodiment, the first PSCCH includes at least one time slot (Slot) in the time domain.

As an embodiment, the first PSCCH belongs to a time slot in the time domain.

As an embodiment, the first PSCCH includes multiple subcarriers (Subcarriers) in the frequency domain.

As an embodiment, the first PSCCH includes at least one Physical Resource Block (PRB) in the frequency domain.

As an embodiment, the first PSCCH includes at least one subchannel (Subchannel) in the frequency domain.

As an embodiment, the first PSCCH belongs to a sub-channel in the frequency domain.

As an embodiment, the first PSCCH includes multiple REs (Resource Elements, resource units).

As an embodiment, any RE among the plurality of REs included in the first PSCCH occupies one multi-carrier symbol in the time domain, and any RE among the plurality of REs included in the first PSCCH is in the frequency domain. The domain occupies one subcarrier.

As an embodiment, the first PSCCH includes multiple multi-carrier symbols in the time domain, and the first PSCCH includes multiple physical resource blocks in the frequency domain.

As an embodiment, the first PSCCH is used for SL (Sidelink, secondary link) transmission or communication.

As an embodiment, the first PSSCH is PSSCH (Physical Sidelink Shared Channel, Physical Sidelink Shared Channel).

As an embodiment, the first PSSCH includes at least one multi-carrier symbol in the time domain.

As an embodiment, the first PSSCH includes at least one time slot in the time domain.

As an embodiment, the first PSSCH belongs to a time slot in the time domain.

As an embodiment, the first PSSCH includes multiple subcarriers in the frequency domain.

As an embodiment, the first PSSCH includes at least one physical resource block in the frequency domain.

As an embodiment, the first PSSCH includes at least one sub-channel in the frequency domain.

As an embodiment, the first PSSCH belongs to a sub-channel in the frequency domain.

As an embodiment, the first PSSCH includes multiple REs.

As an embodiment, any RE among the plurality of REs included in the first PSSCH occupies one multi-carrier symbol in the time domain, and any type of RE among the plurality of REs included in the first PSSCH is in The frequency domain occupies one subcarrier.

As an embodiment, the first PSSCH includes a plurality of multi-carrier symbols in the time domain, and the first PSSCH includes at least one subchannel in the frequency domain.

As an embodiment, the first PSSCH is used for SL transmission or communication.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSCCH is a SC-FDMA (Single-Carrier Frequency Division Multiple Access, single carrier-frequency division multiple access) symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSCCH is DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, Discrete Fourier Transform Spread Spectrum Normal cross-frequency division multiplexing) symbols.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSCCH is an FDMA (Frequency Division Multiple Access) symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSCCH is a FBMC (Filter Bank Multi-Carrier) symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSCCH is an IFDMA (Interleaved Frequency Division Multiple Access) symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSSCH is an SC-FDMA symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSSCH is a DFT-S-OFDM symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSSCH is an FDMA symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSSCH is an FBMC symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the first PSSCH is an IFDMA symbol.

As an embodiment, the first-level control information is first-level SCI ( ^1st -stage Sidelink Control Information).

As an example, the definition of the first-level SCI can be found in Chapter 8.3 of 3GPP TS38.212.

As an embodiment, the first-level control information is used to transmit secondary link scheduling information.

As an embodiment, the first level control information is carried on the first PSCCH.

As an embodiment, the first level control information is used to determine the first PSSCH.

As an embodiment, the first level control information is used to schedule the first PSSCH.

As an embodiment, the first-level control information is used to indicate relevant information of the first PSSCH.

As an embodiment, the first-level control information is used to indicate information related to the first data.

As an embodiment, the first-level control information is used to indicate relevant information of the second-level control information.

As an embodiment, the first level control information is used to indicate the time domain resources occupied by the first PSSCH.

As an embodiment, the first-level control information is used to indicate frequency domain resources occupied by the first PSSCH.

As an embodiment, the first-level control information is used to indicate the priority of the first data.

As an embodiment, the first-level control information is used to indicate the DMRS (Demodulation Reference Signal) used by the first data.

As an embodiment, the first-level control information is used to indicate the format of the second-level control information.

As an embodiment, the format of the first-level control information is SCI format 1-A (SCI format 1-A), or SCI format 1-B (SCI format 1-B).

As an embodiment, candidates for the format of the first-level control information include SCI format 1-A and SCI format 1-B.

As an embodiment, the format of the first-level control information is SCI format 1-A.

As an example, the SCI format 1-A includes priority, frequency resource assignment, time resource assignment, resource reservation period, demodulation reference Signal pattern (DMRS pattern), second-stage SCI format ( ^2nd -stage SCI format), Beta_offset indicator (Beta_offset indicator), demodulation reference signal port number (Number of DMRS port), modulation coding method (MCS, Modulation and coding scheme), additional MCS table indicator (Additional MCS table indicator), physical sidelink feedback channel overhead indicator (PSFCH, Physical Sidelink Feedback Channel, overhead indicator) and conflict information receiver flag (Conflict information receiver flag).

As an example, the definition of the SCI format 1-A can be found in Chapter 8.3.1.1 of 3GPP TS38.212.

As an embodiment, the second-stage control information is second-stage SCI ( ^2nd -stage Sidelink Control Information).

As an example, the definition of the second-level SCI can be found in Chapter 8.4 of 3GPP TS38.212.

As an embodiment, the second-level control information is used to transmit at least one of secondary link scheduling information and information related to inter-UE coordination (inter-UE coordination).

As an embodiment, the second-level control information is used to transmit secondary link scheduling information.

As an embodiment, the second-level control information is used to transmit information related to coordination between user equipments.

As an embodiment, the second level control information is carried on the first PSSCH.

As an embodiment, the second level control information is used to decode the first data.

As an example, the format of the second-level control information is SCI format 2-A (SCI format 2-A), SCI format 2-B (SCI format 2-B), SCI format 2-C (SCI format 2 -C) and one of the first message formats.

As an embodiment, candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format.

As an embodiment, the format of the second-level control information is SCI format 2-A.

As an embodiment, the format of the second-level control information is SCI format 2-B.

As an embodiment, the format of the second-level control information is SCI format 2-C.

As an embodiment, the format of the second-level control information is a first information format.

As an example, the SCI format 2-A includes a Cast type indicator.

As an example, the SCI format 2-A includes Hybrid Automatic Repeat Request process number (HARQ, Hybrid Automatic Repeat reQuest, process number), new data indicator (New data indicator), redundancy version (Redundancy version), source Identification (Source ID, Source Identity), destination identification (Destination ID, Destination Identity), HARQ feedback enabled/disabled indicator (HARQ feedback enabled/disabled indicator), propagation type indication, channel state information request (CSI request, Channel State Information request).

As an example, the definition of the SCI format 2-A can be found in Chapter 8.4.1.1 of 3GPP TS38.212.

As an embodiment, the format of the second-level control information is SCI format 2-A, and the second-level control information is used to indicate that the propagation type of the first data is broadcast, multicast or unicast. one of them.

As an embodiment, the SCI format 2-B includes zone identification (Zone ID, Zone Identity).

As an embodiment, the SCI format 2-B includes communication range requirements (Communication range requirement).

As an embodiment, the SCI format 2-B includes a hybrid automatic repeat request process number, new data indication, redundancy version, source identification, destination identification, HARQ feedback enable/disable indication, area identification, and communication range requirements.

As an example, the definition of the SCI format 2-B can be found in Chapter 8.4.1.2 of 3GPP TS38.212.

As an embodiment, the format of the second-level control information is SCI format 2-B, and the second-level control information is used to indicate the area identification of the first node.

As an embodiment, the format of the second-level control information is SCI format 2-B, and the second-level control information is used to indicate the communication range requirement of the first node.

As an example, the SCI format 2-C includes an offer/request indication.

As an embodiment, the SCI format 2-C includes a hybrid automatic repeat request process number, new data indication, redundancy version, source identification, destination identification, HARQ feedback enable/disable indication, and offer/request indication.

As an example, the definition of the SCI format 2-C can be found in Chapter 8.4.1.3 of 3GPP TS38.212.

As an embodiment, the format of the second-level control information is SCI format 2-C, and the second-level control information is used to provide inter-UE coordination information (Inter-UE coordination information), Alternatively, the second-level control information is used for requesting inter-user equipment coordination information.

As an embodiment, the format of the second-level control information is SCI format 2-C, and the second-level control information is used to provide coordination information between user equipments.

As an embodiment, the format of the second-level control information is SCI format 2-C, and the second-level control information is used to request coordination information between user equipments.

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

As an embodiment, the first data is a radio frequency signal.

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

As an embodiment, the first data includes a data packet (Packet).

As an embodiment, the first data includes secondary link data (SL data).

As an embodiment, the first data includes available SL data in one or more logical channels.

As an embodiment, the first data includes one or more MAC PDUs (Protocol Data Units, protocol data units).

As an embodiment, the first data includes one or more MAC SDUs (Service Data Units, Service Data Units).

As an embodiment, the first data includes one or more TBs (Transport Blocks).

As an embodiment, the first data is a TB (Transport Block).

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

As an embodiment, the first data includes an RRC-IE (Radio Resource Control-Information Element).

As an embodiment, the first data includes a MAC-CE (Multimedia Access Control-Control Element).

As an embodiment, the first data is carried on PSSCH.

As an embodiment, the first data is carried on the first PSSCH or the second PSSCH.

As an embodiment, the first data is carried on the first PSSCH and the second PSSCH.

As an embodiment, the propagation type of the first data is one of unicast (Unicast), groupcast (Groupcast) or broadcast (Broadcast).

As an embodiment, the first data includes a first bit block, and the first bit block includes at least one bit.

As an embodiment, the first bit block is used to generate the first data.

As an embodiment, the first bit block comes from SL-SCH (Sidelink Shared Channel).

As an embodiment, the first bit block includes 1 CW (Codeword, codeword).

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

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

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

As an embodiment, all or part of the bits in the first bit block are sequentially subjected to transmission block level CRC (Cyclic Redundancy Check) attachment (Attachment), code block segmentation (Code Block Segmentation), and encoding. Block-level CRC attachment, Channel Coding, Rate Matching, Code Block Concatenation, Scrambling, Modulation, Layer Mapping, Antenna Port Mapping ( Antenna Port Mapping), mapping to Physical Resource Blocks (Mapping to Physical Resource Blocks), baseband signal generation (Baseband Signal Generation), modulation and upconversion (Modulation and Upconversion) to obtain the first data.

As an embodiment, the first data is the first bit block that passes through a modulation mapper (Modulation Mapper), a layer mapper (Layer Mapper), a precoding (Precoding), and a resource element mapper (Resource Element Mapper) in sequence. , the output after multi-carrier symbol generation.

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

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

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in Figure 2. Figure 2 illustrates a diagram of the network architecture 200 of 5G NR, LTE (Long-Term Evolution, Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced, Enhanced Long-Term Evolution) systems. The 5G NR or LTE network architecture 200 may be called 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable term. 5GS/EPS 200 may include one or more UE (User Equipment) 201, a UE 241 for sidelink communication with 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, owned subscriber server)/UDM (Unified Data Management, unified data management) 220 and Internet services 230. 5GS/ EPS can interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, 5GS/EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks that provide circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination towards UE 201. gNB 203 may connect to other gNBs 204 via the Xn interface (eg, backhaul). gNB 203 may also be called a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitting and receiving node) or some other suitable terminology. In NTN networks, examples of gNB203 include satellites, aircraft, or ground base stations relayed through satellites. 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 radio, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices , video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine type communications 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 the S1/NG interface. 5GC/EPC210 includes MME (Mobility Management Entity, mobility management entity)/AMF (Authentication Management Field, authentication management field)/SMF (Session Management Function, session management function) 211. Other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function) 212 and P-GW (Packet Date Network Gateway)/UPF213. MME/AMF/SMF211 is the control node that handles signaling between UE201 and 5GC/EPC210. Basically, MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW/UPF212, and S-GW/UPF212 itself is connected to P-GW/UPF213. P-GW provides UE IP address allocation and other functions. P-GW/UPF 213 is connected to Internet service 230. Internet service 230 includes the operator's corresponding Internet protocol service, which may specifically include the Internet, intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) and packet switching streaming services.

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

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

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

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

As an embodiment, the sender of the first-level control information in this application includes the UE201.

As an embodiment, the recipients of the first-level control information in this application include the UE241.

As an embodiment, the sender of the second-level control information in this application includes the UE201.

As an embodiment, the recipients of the second-level control information in this application include the UE241.

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

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

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3 . 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for user plane 350 and control plane 300, using three The layer presentation is for the first node device (UE or RSU in V2X, vehicle-mounted equipment or vehicle-mounted communication module) and the second node device (gNB, UE or RSU in V2X, vehicle-mounted equipment or vehicle-mounted communication module), or two UEs Radio protocol architecture between control plane 300: 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 called PHY301 in this article. Layer 2 (L2 layer) 305 is above the PHY 301 and is responsible for the link between the first node device and the second 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, wireless link layer control protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, packet data convergence protocol) sublayer 304, these sub-layers terminate at the second node device. The PDCP sublayer 304 provides data encryption and integrity protection, and the PDCP sublayer 304 also provides hand-off support for the first node device to the second node device. The RLC sublayer 303 provides segmentation and reassembly of data packets, and realizes retransmission of lost data packets through ARQ. The RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource blocks) in a cell among first node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control, radio resource control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and using the link between the second node device and the first node device. RRC signaling to configure lower layers. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). Radio protocol architecture for the first node device and the second node device in the user plane 350. For the physical layer 351, the L2 layer 355 The PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are generally the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides Header compression of upper layer data packets to reduce wireless 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. The SDAP sublayer 356 is responsible for the mapping between QoS flows and data radio bearers (DRB, Data Radio Bearer). , to support business diversity. Although not shown, the first 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 terminating at the other end of the connection (e.g., remote UE, server, etc.) application layer.

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

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

As an embodiment, the first data in this application is generated in the MAC sublayer 302.

As an embodiment, the first data in this application is generated from the RRC sublayer 306.

As an embodiment, the first data in this application is transmitted to the PHY 301 via the MAC sublayer 302.

As an embodiment, the first-level control information in this application is generated from the PHY301.

As an embodiment, the first-level control information in this application is generated in the MAC sublayer 302.

As an embodiment, the first-level control information in this application is transmitted to the PHY 301 via the MAC sublayer 302.

As an embodiment, the second-level control information in this application is generated from the PHY301.

As an embodiment, the second-level control information in this application is generated in the MAC sublayer 302.

As an embodiment, the second-level control information in this application is transmitted to the PHY 301 via the MAC sublayer 302.

Example 4

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

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

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

In transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to the controller/processor 475 at the first communication device 410. Controller/processor 475 implements the functionality of the L2 layer. In transmission from the first communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels Multiplexing, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the second communications device 450 . Transmit processor 416 and multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (ie, physical layer). Transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communications device 450, as well as based on various modulation schemes (e.g., binary phase-shift keying (BPSK), Quadrature Phase Shift Keying (QPSK), M Phase Shift Keying (M-PSK), M Quadrature Amplitude Modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it 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 carrying a stream of time-domain multi-carrier symbols. 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 transmission from the first communications device 410 to the second communications device 450 , each receiver 454 receives the signal via its respective antenna 452 at the second communications device 450 . 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. Multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream after the received analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458. The second communication device 450 is any spatial stream that is the destination. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover upper layer data and control signals transmitted by the first communications device 410 on the physical channel. Upper layer data and control signals are then provided to controller/processor 459. Controller/processor 459 implements the functions of the L2 layer. Controller/processor 459 may be associated with memory 460 which stores program code and data. Memory 460 may be referred to as computer-readable media. In transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

In the transmission from the second communication device 450 to the first communication device 410, the functionality 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 reception function at the second communication device 450 is described in the transmission. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to multi-antenna receive processor 472 and receive processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the functions of the L1 layer. Controller/processor 475 implements L2 layer functions. Controller/processor 475 may be associated with memory 476 that stores program code and data. Memory 476 may be referred to as computer-readable media. In transmission from the second communications device 450 to the first communications device 410, 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 UE450. Upper layer packets from controller/processor 475 may be provided to the core network.

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

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

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

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

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

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

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

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

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to interact with the At least one processor is used together. The second communication device 450 at least: sends first-level control information on the first PSCCH; sends at least the former of second-level control information and first data on the first PSSCH; the first-level control The information is used to determine the first PSSCH; the first level control information includes a first field, the first field includes two information bits, the first field is used to determine the second level control information format, the format candidates of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; the SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.

As an embodiment, the second communication device 450 includes: a memory that stores a program of computer-readable instructions that, when executed by at least one processor, generates actions, and the actions include: in the first First-level control information is sent on a PSCCH; at least the former of second-level control information and first data is sent on the first PSSCH; the first-level control information is used to determine the first PSSCH; so The first-level control information includes a first field, the first field includes two information bits, the first field is used to determine the format of the second-level control information, and all of the second-level control information Candidates for the above format include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; the SCI format 2-A includes a propagation type indication, and the SCI format 2-B includes a region identifier , the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to interact with the At least one processor is used together. The first communication device 410 device at least: receives first-level control information on the first PSCCH; receives at least the former of second-level control information and first data on the first PSSCH; the first-level control The information is used to determine the first PSSCH; the first level control information includes a first field, the first field includes two information bits, the first field is used to determine the second level control information format, the format candidates of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; the SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.

As an embodiment, the first communication device 410 includes: a memory that stores a program of computer-readable instructions that, when executed by at least one processor, generates actions, and the actions include: in the first Receive first-level control information on a PSCCH; receive at least the former of second-level control information and first data on a first PSSCH; the first-level control information is used to determine the first PSSCH; so The first-level control information includes a first field, the first field includes two information bits, the first field is used to determine the format of the second-level control information, and all of the second-level control information Candidates for the above format include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; the SCI format 2-A includes a propagation type indication, and the SCI format 2-B includes a region identifier , the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.

As an embodiment, {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, the data At least one of the sources 467} is used in this application to send first level control information on the first PSCCH.

As an embodiment, {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, the data At least one of the sources 467} is used in this application to send the second level control information on the first PSSCH.

As an embodiment, {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, the data At least one of the sources 467} is used in this application to send the first data on the first PSSCH.

As an embodiment, {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, At least one of the controller/processor 459, the memory 460, and the data source 467} is used in this application to send the first data on the second PSSCH.

As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processor 475, and the memory 476} One is used in this application to receive first level control information on the first PSCCH.

As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, and the memory 476} One is used in this application to receive the second level control information on the first PSSCH.

As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processor 475, and the memory 476} One is used in this application to receive the first data on the first PSSCH.

As an embodiment, at least one of {the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processor 475, and the memory 476} One is used in this application to receive the first data on the second PSSCH.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG. 5 . In FIG. 5 , the first node U1 and the second node U2 communicate through the air interface. In Figure 5, the steps in the dotted box F0 and the dotted release F1 are respectively optional.

For the first node U1 , in step S11, the first level control information is sent on the first PSCCH; in step S12, the second level control information is sent on the first PSSCH; in step S13, the first level control information is sent on the first PSSCH. data, or the first data is sent on the second PSSCH in step S14.

For the second node U2 , in step S21, the first-level control information is received on the first PSCCH; in step S22, the second-level control information is received on the first PSSCH; in step S23, the first-level control information is received on the first PSSCH. data, or receive the first data on the second PSSCH in step S24.

In Embodiment 5, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first The field is used to determine the format of the second-level control information. Candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and first information. Format; the SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes decoding the first Information related to the data; whether the first data is carried on the first PSSCH is related to the format of the second-level control information; the first-level control information is the first-level SCI, and the third-level control information is the first-level SCI. The format of the first-level control information is SCI format 1-A, or the format of the first-level control information is SCI format 1-B; the first information format is SCI format 2-D.

As an embodiment, the format of the second-level control information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C. A data is carried on the first PSSCH.

As an embodiment, the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.

As an embodiment, the format of the second-level control information is the first information format, and the first data is abandoned for transmission.

As an embodiment, the format of the second-level control information is the first information format, the first data is carried on a second PSSCH, and the second PSSCH is different from the first PSSCH; The second PSSCH and the first PSSCH respectively belong to two different resource pools and the second level control information is used to determine the second PSSCH, or the second PSSCH and the first PSSCH Two different spatial filters are respectively associated and the second level control information is used to determine the spatial filter associated with the second PSSCH.

As an embodiment, the format of the second-level control information is the first information format, the first information format includes a second field, and the second field is used to determine whether the first data is carried on the first PSSCH.

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

As an embodiment, the steps in block F0 in Figure 5 exist, and the steps in block F1 in Figure 5 do not exist.

As an embodiment, the steps in block F0 in Figure 5 do not exist, and the steps in block F1 in Figure 5 exist.

As an embodiment, the steps in block F0 in Figure 5 do not exist, and the steps in block F1 in Figure 5 do not exist.

As an embodiment, the steps in block F0 in Figure 5 exist, and the steps in block F1 in Figure 5 exist.

As an embodiment, when the format of the second-level control information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, FIG. The steps in box F0 in Figure 5 exist, and the steps in box F1 in Figure 5 do not exist.

As an embodiment, when the format of the second-level control information is the first information format, the steps in block F0 in Figure 5 do not exist, and the steps in block F1 in Figure 5 do not exist. The steps exist.

As an embodiment, when the format of the second-level control information is the first information format, the steps in block F0 in Figure 5 do not exist, and the steps in block F1 in Figure 5 do not exist. The step does not exist.

As an embodiment, when the format of the second-level control information is the first information format, the steps in block F0 in Figure 5 exist, and the steps in block F1 in Figure 5 exist.

As an embodiment, the second PSSCH is PSSCH.

As an embodiment, the second PSSCH includes at least one multi-carrier symbol in the time domain.

As an embodiment, the second PSSCH includes at least one time slot in the time domain.

As an embodiment, the second PSSCH belongs to a time slot in the time domain.

As an embodiment, the second PSSCH includes multiple subcarriers in the frequency domain.

As an embodiment, the second PSSCH includes at least one physical resource block in the frequency domain.

As an embodiment, the second PSSCH includes at least one sub-channel in the frequency domain.

As an embodiment, the second PSSCH belongs to a sub-channel in the frequency domain.

As an embodiment, the second PSSCH includes multiple REs.

As an embodiment, any RE among the plurality of REs included in the second PSSCH occupies one multi-carrier symbol in the time domain, and any type of RE among the plurality of REs included in the second PSSCH is in The frequency domain occupies one subcarrier.

As an embodiment, the second PSSCH includes a plurality of multi-carrier symbols in the time domain, and the second PSSCH includes at least one subchannel in the frequency domain.

As an embodiment, the second PSSCH is used for SL transmission or communication.

As an embodiment, any one of the at least one multi-carrier symbol included in the second PSSCH is an SC-FDMA symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the second PSSCH is a DFT-S-OFDM symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the second PSSCH is an FDMA symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the second PSSCH is an FBMC symbol.

As an embodiment, any one of the at least one multi-carrier symbol included in the second PSSCH is an IFDMA symbol.

As an embodiment, the second PSSCH is different from the first PSSCH.

As an embodiment, the second PSSCH and the first PSSCH belong to two different resource pools respectively.

As an embodiment, the second PSSCH and the first PSSCH belong to two different bandwidth parts (BWPs, Bandwidth Parts) respectively.

As an embodiment, the second PSSCH and the first PSSCH belong to two different carrier frequencies (Carrier Frequencies) respectively.

As an embodiment, the second PSSCH and the first PSSCH are respectively associated with two different spatial filters.

As an embodiment, the second PSSCH and the first PSSCH are FDM (Frequency Division Multiplexing).

As an embodiment, the second PSSCH and the first PSSCH are TDM (Time Division Multiplexing).

As an embodiment, the second PSSCH and the first PSSCH are SDM (Spatial Division Multiplexing, spatial division multiplexing). reuse).

Example 6

Embodiment 6 illustrates a schematic diagram of the relationship between the first domain and the first information format according to an embodiment of the present application, as shown in FIG. 6 .

In Embodiment 6, the format candidates of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; the first-level control information includes the first information format. a field, said first field including two information bits, said first field being used to determine said second level control information from said candidates for said format of said second level control information. Format.

As an embodiment, the first information format is SCI format 2-D.

As an embodiment, the first information format is used to decode the first data.

As an embodiment, the first information format includes information related to decoding the first data.

As an embodiment, the first information format includes instructions related to resource pools.

As an embodiment, the first information format includes a resource pool indication.

As an embodiment, the first information format includes a resource pool index.

As an embodiment, the first information format includes instructions related to carrier frequency (Carrier Frequency).

As an embodiment, the first information format includes a carrier frequency indication.

As an embodiment, the first information format includes a carrier frequency index.

As an embodiment, the first information format includes instructions related to Bandwidth Part (BWP).

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the second PSSCH.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the resource pool to which the second PSSCH belongs.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to indicate the second resource pool.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the carrier frequency to which the second PSSCH belongs.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to indicate the second carrier frequency.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the BWP to which the second PSSCH belongs.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to indicate the second BWP.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the spatial filter associated with the second PSSCH.

As an embodiment, the format of the second-level control information is the first information format, and the second-level control information is used to determine the second spatial filter.

As an embodiment, the first level control information includes a first domain.

As an embodiment, the first-level control information includes multiple domains, and the first domain is one of the multiple domains included in the first-level control information.

As an embodiment, the first level control information includes the first field, and the first field includes two information bits.

As an embodiment, the first field including two information bits means that the first field is mapped to the two information bits in the first-level control information.

As an embodiment, the first-level control information includes a plurality of information bits, and the first field corresponds to two information bits among the plurality of information bits included in the first-level control information.

As an embodiment, the first-level control information includes a plurality of information bits, and the first field is mapped to two information bits among the plurality of information bits included in the first-level control information.

As an embodiment, the first-level control information includes multiple information bits, which means that the multiple information bits are used to generate the first-level control information.

As an embodiment, the multiple domains included in the first-level control information are respectively mapped to at least one information bit among the multiple information bits included in the first-level control information.

As an embodiment, the SCI format 1-A includes multiple fields, the first-level control information includes multiple information bits, and the multiple fields included in the SCI format are respectively mapped to the first-level The control information includes at least one information bit among the plurality of information bits.

As an embodiment, the first domain is one of the multiple domains included in the SCI format 1-A, and the first domain is mapped to the multiple domains included in the first-level control information. Two of the information bits.

As an embodiment, the first field is used to indicate the format of the second-level control information.

As an example, the first field is a second-stage SCI format (2nd-stage SCI format) field.

As an example, the definition of the 2nd-stage SCI format can be found in Chapter 8.3.1.1 of 3GPP TS38.212.

As an embodiment, the first field is used to indicate one of the SCI format 2-A, the SCI format 2-B, the SCI format 2-C and the first information format.

As an embodiment, the first field is used to indicate that the format of the second-level control information is the SCI format 2-A, the SCI format 2-B, the SCI format 2-C and One of the first information formats.

As an embodiment, the two information bits included in the first field indicate four values respectively.

As an embodiment, candidates for the value of the first field include 00, 01, 10 and 11.

As an embodiment, the value of the first field is one of 00, 01, 10 and 11.

As an embodiment, the format of the second-level control information is related to the value of the first field.

As an embodiment, the value of the first field is used to determine the format of the second-level control information.

As an embodiment, the value of the first field is 00, and the format of the second-level control information is the SCI format 2-A.

As an embodiment, the value of the first field is 01, and the format of the second-level control information is the SCI format 2-B.

As an embodiment, the value of the first field is 10, and the format of the second-level control information is the SCI format 2-C.

As an embodiment, the value of the first field is 11, and the format of the second-level control information is the first information format.

As an embodiment, when the value of the first field is 00, the format of the second-level control information is the SCI format 2-A; when the value of the first field is 01, the format of the second-level control information is SCI format 2-A. The format of the second-level control information is the SCI format 2-B; when the value of the first field is 10, the format of the second-level control information is the SCI format 2-C ; When the value of the first field is 11, the format of the second-level control information is the first information format.

As an embodiment, the value of the first field is 00, and the format of the second-level control information is the SCI format 2-A; or, the value of the first field is 01, and the format of the second-level control information is 01. The format of the second-level control information is the SCI format 2-B; or, the value of the first field is 10, and the format of the second-level control information is the SCI format 2-C; or , the value of the first field is 11, and the format of the second-level control information is the first information format.

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship between the first PSCCH, the first PSSCH and the second PSSCH according to an embodiment of the present application, as shown in FIG. 7 . In Figure 7, the large dotted box represents the first resource pool in this application; the large solid line box represents the second resource pool in this application; the solid rectangles in the large dotted box represent the first level in this application respectively. Control information and second-level control information; the dotted rectangle represents the first data in this application; the solid rectangle in the solid large box represents the first data in this application.

In Embodiment 7, the format of the second-level control information is the first information format, the second-level control information is carried on the first PSSCH, and the first data is carried on the On the second PSSCH; the first PSSCH belongs to the first resource pool, the second PSSCH belongs to the second resource pool, and the second resource pool is different from the first resource pool.

As an example,

As an embodiment, the first resource pool includes a Sidelink Resource Pool.

As an embodiment, the first resource pool includes all or part of the resources of a secondary link resource pool.

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

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

As an embodiment, the first resource pool includes multiple time slots in the time domain.

As an embodiment, the first resource pool includes a plurality of first type multi-carrier symbols in any one of the plurality of time slots included in the time domain.

As an embodiment, the first resource pool includes multiple physical resource blocks in the frequency domain.

As an embodiment, any physical resource block among the plurality of physical resource blocks included in the first resource pool in the frequency domain includes a plurality of first type subcarriers.

As an embodiment, the first resource pool includes multiple sub-channels in the frequency domain.

As an embodiment, any sub-channel among the plurality of sub-channels included in the first resource pool in the frequency domain includes a plurality of physical resource blocks in the first resource pool.

As an embodiment, the first resource pool includes a plurality of first-type time-frequency resource blocks.

As an embodiment, any first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes a plurality of first-type multi-carrier symbols in the time domain.

As an embodiment, the time-domain resources occupied by any first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool in the time domain belong to the first resource. A slot in the pool.

As an embodiment, any first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes a plurality of first-type subcarriers in the frequency domain.

As an embodiment, any first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes at least one physical block in the first resource pool in the frequency domain. Resource blocks.

As an embodiment, the frequency domain resources occupied by any first-type time-frequency resource block in the frequency domain among the plurality of first-type time-frequency resource blocks included in the first resource pool belong to the first resource. A sub-channel in the pool.

As an embodiment, any first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes at least one sub-block in the first resource pool in the frequency domain. channel.

As an embodiment, at least one first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes PSCCH.

As an embodiment, at least one first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes PSSCH.

As an embodiment, at least one first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes PSFCH (Physical Sidelink Feedback Channel, Physical Sidelink Feedback Channel) .

As an embodiment, at least one first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes PSCCH and PSSCH.

As an embodiment, at least one first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool includes PSCCH, PSSCH and PSFCH.

As an embodiment, the first PSCCH belongs to the first resource pool.

As an embodiment, the first PSCCH belongs to a first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool.

As an embodiment, the first PSCCH is a first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool.

As an embodiment, any multi-carrier symbol among the at least one multi-carrier symbol included in the first PSCCH in the time domain is the first type of multi-carrier symbol in the first resource pool.

As an embodiment, any subcarrier among the plurality of subcarriers included in the frequency domain by the first PSCCH is the first type of subcarrier in the first resource pool.

As an embodiment, the first PSSCH belongs to the first resource pool.

As an embodiment, the first PSSCH belongs to a first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool.

As an embodiment, the first PSSCH is a first-type time-frequency resource block among the plurality of first-type time-frequency resource blocks included in the first resource pool.

As an embodiment, any multi-carrier symbol among the at least one multi-carrier symbol included in the first PSSCH in the time domain is the first type of multi-carrier symbol in the first resource pool.

As an embodiment, any subcarrier among the plurality of subcarriers included in the frequency domain by the first PSSCH is the first type of subcarrier in the first resource pool.

As an embodiment, the second resource pool includes a secondary link resource pool.

As an embodiment, the second resource pool includes all or part of the resources of a secondary link resource pool.

As an embodiment, the second resource pool is provided by higher layer signaling.

As an embodiment, the second resource pool is provided by RRC layer signaling.

As an embodiment, the second resource pool includes multiple time slots in the time domain.

As an embodiment, the second resource pool includes a plurality of second type multi-carrier symbols in any one of the plurality of time slots included in the time domain.

As an embodiment, the second resource pool includes multiple physical resource blocks in the frequency domain.

As an embodiment, any physical resource block among the plurality of physical resource blocks included in the second resource pool in the frequency domain includes a plurality of second type subcarriers.

As an embodiment, the second resource pool includes multiple sub-channels in the frequency domain.

As an embodiment, any sub-channel among the plurality of sub-channels included in the second resource pool in the frequency domain includes a plurality of physical resource blocks in the second resource pool.

As an embodiment, the second resource pool includes a plurality of second type time-frequency resource blocks.

As an embodiment, any second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool includes a plurality of second type multi-carrier symbols in the time domain.

As an embodiment, the time-domain resources occupied by any second-type time-frequency resource block in the time domain among the plurality of second-type time-frequency resource blocks included in the second resource pool belong to the second resource. A slot in the pool.

As an embodiment, any second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool includes a plurality of second type subcarriers in the frequency domain.

As an embodiment, any second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool includes at least one physical block in the second resource pool in the frequency domain. Resource blocks.

As an embodiment, the frequency domain resources occupied by any second type time-frequency resource block in the frequency domain among the plurality of second type time-frequency resource blocks included in the second resource pool belong to the second resource. A sub-channel in the pool.

As an embodiment, any second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool includes at least one sub-unit in the second resource pool in the frequency domain. channel.

As an embodiment, at least one second-type time-frequency resource block among the plurality of second-type time-frequency resource blocks included in the second resource pool includes PSCCH.

As an embodiment, at least one second-type time-frequency resource block among the plurality of second-type time-frequency resource blocks included in the second resource pool includes PSSCH.

As an embodiment, at least one second-type time-frequency resource block among the plurality of second-type time-frequency resource blocks included in the second resource pool includes PSFCH.

As an embodiment, at least one second-type time-frequency resource block among the plurality of second-type time-frequency resource blocks included in the second resource pool includes PSCCH and PSSCH.

As an embodiment, at least one second-type time-frequency resource block among the plurality of second-type time-frequency resource blocks included in the second resource pool includes PSCCH, PSSCH and PSFCH.

As an embodiment, the second PSSCH belongs to the second resource pool.

As an embodiment, the second PSSCH belongs to a second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool.

As an embodiment, the second PSSCH is a second type time-frequency resource block among the plurality of second type time-frequency resource blocks included in the second resource pool.

As an embodiment, any one of the at least one multi-carrier symbol included in the time domain of the second PSSCH is the the second type of multi-carrier symbols in the second resource pool.

As an embodiment, any subcarrier among the plurality of subcarriers included in the frequency domain of the second PSSCH is the second type of subcarrier in the second resource pool.

As an embodiment, the second resource pool is orthogonal to the first resource pool.

As an embodiment, the second resource pool and the first resource pool are orthogonal in the frequency domain.

As an embodiment, the second resource pool and the first resource pool are orthogonal in the time domain.

As an embodiment, the second resource pool overlaps with the first resource pool.

As an embodiment, the second resource pool and the first resource pool overlap in the time domain.

As an embodiment, the second resource pool and the first resource pool overlap in the frequency domain.

As an embodiment, the second resource pool and the first resource pool are orthogonal in the frequency domain, and the second resource pool and the first resource pool overlap in the time domain.

As an embodiment, the second resource pool and the first resource pool are orthogonal in the time domain, and the second resource pool and the first resource pool overlap in the frequency domain.

As an embodiment, the second resource pool and the first resource pool are FDM.

As an embodiment, the second resource pool and the first resource pool are TDM.

As an embodiment, the second resource pool and the first resource pool belong to the same carrier frequency (Carrier Frequency).

As an embodiment, the second resource pool and the first resource pool respectively belong to two different carrier frequencies.

As an embodiment, the first resource pool belongs to the first carrier frequency, and the second resource pool belongs to the second carrier frequency.

As a sub-embodiment of the above embodiment, the center frequency points of the first carrier frequency and the second carrier frequency are different.

As a sub-embodiment of the above embodiment, the first carrier frequency and the second carrier frequency have different bandwidths.

As an embodiment, the second resource pool and the first resource pool belong to the same bandwidth component (BWP).

As an embodiment, the second resource pool and the first resource pool respectively belong to two different BWPs.

As an embodiment, the first resource pool belongs to the first BWP, and the second resource pool belongs to the second BWP.

As a sub-embodiment of the above embodiment, the subcarrier spacing of the first BWP and the second BWP are different.

As a sub-embodiment of the above embodiment, the multi-carrier symbol lengths of the first BWP and the second BWP are different.

As a sub-embodiment of the above embodiment, the first BWP and the second BWP have different bandwidths.

As an embodiment, the second resource pool and the first resource pool are two different resource pools in the same carrier frequency.

As an embodiment, the second resource pool and the first resource pool are two different resource pools in the same bandwidth component.

As an embodiment, the length of any second type multi-carrier symbol in the second resource pool is equal to the length of any first type multi-carrier symbol in the first resource pool.

As an embodiment, the length of any second type multi-carrier symbol in the second resource pool is different from the length of any first type multi-carrier symbol in the first resource pool.

As an embodiment, the length of any second type multi-carrier symbol in the second resource pool is greater than the length of any first type multi-carrier symbol in the first resource pool.

As an embodiment, the length of any second type multi-carrier symbol in the second resource pool is smaller than the length of any first type multi-carrier symbol in the first resource pool.

As an embodiment, the length of any second type multi-carrier symbol in the second resource pool is a multiple of the length of any first type multi-carrier symbol in the first resource pool.

As an embodiment, the length of any first type multi-carrier symbol in the first resource pool is a multiple of the length of any second type multi-carrier symbol in the second resource pool.

As an embodiment, the length of any time slot in the second resource pool is equal to the length of any time slot in the first resource pool.

As an embodiment, the length of any time slot in the second resource pool is different from the length of any time slot in the first resource pool.

As an embodiment, the length of any time slot in the second resource pool is greater than the length of any time slot in the first resource pool.

As an embodiment, the length of any time slot in the second resource pool is smaller than the length of any time slot in the first resource pool.

As an embodiment, the length of any time slot in the second resource pool is a multiple of the length of any time slot in the first resource pool.

As an embodiment, the length of any time slot in the first resource pool is a multiple of the length of any time slot in the second resource pool.

As an embodiment, the spacing of any second type subcarrier in the second resource pool is equal to the spacing of any first type subcarrier in the first resource pool.

As an embodiment, the spacing of any second type subcarrier in the second resource pool is not equal to the spacing of any first type subcarrier in the first resource pool.

As an embodiment, the spacing between any second type subcarriers in the second resource pool is greater than the spacing between any first type subcarriers in the first resource pool.

As an embodiment, the spacing between any second type subcarriers in the second resource pool is smaller than the spacing between any first type subcarriers in the first resource pool.

As an embodiment, the spacing of any second type subcarrier in the second resource pool is a multiple of the spacing of any first type subcarrier in the first resource pool.

As an embodiment, the spacing of any first type subcarrier in the first resource pool is a multiple of the spacing of any second type subcarrier in the second resource pool.

As an embodiment, the frequency domain resources occupied by any physical resource block in the second resource pool are equal to the frequency domain resources occupied by any physical resource block in the first resource pool.

As an embodiment, the frequency domain resources occupied by any physical resource block in the second resource pool are not equal to the frequency domain resources occupied by any physical resource block in the first resource pool.

As an embodiment, the frequency domain resources occupied by any physical resource block in the second resource pool are greater than the frequency domain resources occupied by any physical resource block in the first resource pool.

As an embodiment, the frequency domain resources occupied by any physical resource block in the second resource pool are smaller than the frequency domain resources occupied by any physical resource block in the first resource pool.

As an embodiment, the frequency domain resources occupied by any sub-channel in the second resource pool are equal to the frequency domain resources occupied by any sub-channel in the first resource pool.

As an embodiment, the frequency domain resources occupied by any sub-channel in the second resource pool are not equal to the frequency domain resources occupied by any sub-channel in the first resource pool.

As an embodiment, the frequency domain resources occupied by any sub-channel in the second resource pool are greater than the frequency domain resources occupied by any sub-channel in the first resource pool.

As an embodiment, the frequency domain resources occupied by any sub-channel in the second resource pool are smaller than the frequency domain resources occupied by any sub-channel in the first resource pool.

As an embodiment, the number of physical resource blocks in the second resource pool included in any sub-channel in the second resource pool is equal to the number of physical resource blocks included in any sub-channel in the first resource pool. The number of physical resource blocks in the first resource pool is equal.

As an embodiment, the number of physical resource blocks in the second resource pool included in any sub-channel in the second resource pool is equal to the number of physical resource blocks included in any sub-channel in the first resource pool. The number of physical resource blocks in the first resource pool varies.

As an embodiment, the number of physical resource blocks in the second resource pool included in any sub-channel in the second resource pool is greater than the number of physical resource blocks included in any sub-channel in the first resource pool. The number of physical resource blocks in the first resource pool.

As an embodiment, the number of physical resource blocks in the second resource pool included in any sub-channel in the second resource pool is smaller than the number of physical resource blocks included in any sub-channel in the first resource pool. The number of physical resource blocks in the first resource pool.

Example 8

Embodiment 8 illustrates a schematic diagram of the relationship between the first PSCCH, the first PSSCH and the second PSSCH according to an embodiment of the present application, as shown in FIG. 8 . The dotted ellipse represents the first spatial filter in this application, and the solid ellipse represents the second spatial filter in this application.

In Embodiment 8, the format of the second-level control information is the first information format, the second-level control information is carried on the first PSSCH, and the first data is carried on the On the second PSSCH; the first PSSCH is associated with a first spatial filter, the second PSSCH is associated with a second spatial filter, and the second spatial filter is different from the first spatial filter.

As an embodiment, the second spatial filter is different from the first spatial filter.

As an embodiment, the spatial transmission parameters of the second spatial filter are different from the spatial transmission parameters of the first spatial filter.

As an embodiment, the spatial beam generated by the second spatial filter is different from the spatial beam generated by the first spatial filter.

As an embodiment, the QCL (Quasi-Co-Located, quasi-co-located) relationship of the second spatial filter is different from the QCL relationship generated by the first spatial filter.

As an embodiment, the reference signal used by the second spatial filter is different from the reference signal used by the first spatial filter.

As an embodiment, the second PSSCH and the first PSSCH are respectively associated with two different spatial filters, which means that the spatial transmission parameters experienced on the second PSSCH are different from those experienced on the first PSSCH. The space sending parameters are different.

As an embodiment, the second PSSCH and the first PSSCH are respectively associated with two different spatial filters, which refers to the spatial beam used by the first data on the second PSSCH and the first data The spatial beams used on the first PSSCH are different.

As an embodiment, the second PSSCH and the first PSSCH are respectively associated with two different spatial filters, which means that the QCL relationship adopted by the first data on the second PSSCH and the first data The QCL relationship adopted on the first PSSCH is different.

As an embodiment, the second PSSCH and the first PSSCH are respectively associated with two different spatial filters, which refers to the reference signal used by the first data on the second PSSCH and the first data. The reference signals used on the first PSSCH are different.

As an embodiment, the format of the second-level control information is the first information format, and the second control information is used to determine the spatial filter associated with the second PSSCH.

As an embodiment, the spatial filter associated with the second PSSCH is the second spatial filter.

As an embodiment, determining the spatial filter associated with the second PSSCH means determining the second spatial filter.

As an embodiment, determining the spatial filter associated with the second PSSCH means determining the spatial transmission parameter of the second spatial filter.

As an embodiment, determining the spatial filter associated with the second PSSCH means determining the spatial beam generated by the second spatial filter.

As an embodiment, determining the spatial filter associated with the second PSSCH means determining the QCL relationship of the second spatial filter.

As an embodiment, determining the spatial filter associated with the second PSSCH means determining the reference signal used by the second spatial filter.

Example 9

Embodiment 9 illustrates a schematic diagram of the relationship between first-level control information, second-level control information and first data according to an embodiment of the present application, as shown in FIG. 9 . In Figure 9, the rectangle filled with diagonal stripes represents the first-level control information in this application, the rectangle filled with horizontal stripes represents the second-level control information in this application, and the dotted rectangle represents the first data in this application.

In Embodiment 9, the first-level control information includes a first field, and the first field is used to determine that the format of the second-level control information is a first information format, and the first information format includes a first information format. The second domain is used to determine whether the first data is carried on the first PSSCH.

As an embodiment, the second level control information includes the second domain.

As an embodiment, the second-level control information includes multiple domains, and the second domain is one of the multiple domains included in the second-level control information.

As an embodiment, the second level control information includes the second field, and the second field includes at least one information bit.

As an embodiment, the at least one information bit included in the second domain refers to the at least one information bit that the second domain is mapped to in the second-level control information.

As an embodiment, the second-level control information includes a plurality of information bits, and the second field corresponds to at least one information bit among the plurality of information bits included in the second-level control information.

As an embodiment, the second-level control information includes a plurality of information bits, and the second field is mapped to the second-level control information. At least one information bit among the plurality of information bits included.

As an embodiment, the second-level control information includes multiple information bits, which means that the multiple information bits are used to generate the second-level control information.

As an embodiment, the plurality of domains included in the second-level control information are respectively mapped to at least one information bit among the plurality of information bits included in the second-level control information.

As an embodiment, the format of the second-level control information is the first information format, the first information format includes multiple fields, and the second field is all the fields included in the first information format. Describes one domain among multiple domains.

As an embodiment, the first information format includes multiple fields, the second-level control information includes multiple information bits, and the multiple fields included in the first information format are respectively mapped to the second-level control information. At least one information bit among the plurality of information bits included in the level control information.

As an embodiment, the second domain is one of the multiple domains included in the first information format, and the second domain is mapped to the multiple domains included in the second-level control information. At least one of the information bits.

As an embodiment, the second field is used to indicate whether the first data is carried on the first PSSCH.

As an embodiment, the second domain is used to indicate whether the first data is carried on the first resource pool.

As an embodiment, the second field is used to indicate whether the first data is carried on the first BWP.

As an embodiment, the second field is used to indicate whether the first data is carried on the first carrier frequency.

As an embodiment, the at least one information bit included in the second field indicates two values respectively.

As an embodiment, candidates for the value of the second field include 0 and 1.

As an example, the value of the second field is 0 or 1.

As an embodiment, whether the first data is carried on the first PSSCH is related to the value of the second field.

As an embodiment, whether the first data is carried on the first PSSCH or the second PSSCH is related to the value of the second field.

As an embodiment, the value of the second field is 1, and the first data is carried on the first PSSCH.

As an embodiment, the value of the second field is 0, and the first data is not carried on the first PSSCH.

As an embodiment, the value of the second field is 0, and the first data is carried on the second PSSCH.

As an embodiment, the value of the second field is 0, and the first data is carried on the first PSSCH.

As an embodiment, the value of the second field is 1, and the first data is not carried on the first PSSCH.

As an embodiment, the value of the second field is 1, and the first data is carried on the second PSSCH.

As an embodiment, the value of the second field is 1, and the first data is carried on the first PSSCH; or, the value of the second field is 0, and the first data is carried on the first PSSCH. The data is not carried on the first PSSCH; or the value of the second field is 0 and the first data is carried on the second PSSCH.

As an embodiment, the value of the second field is 0, and the first data is carried on the first PSSCH; or, the value of the second field is 1, and the first data is carried on the first PSSCH. The data is not carried on the first PSSCH; or the value of the second field is 1 and the first data is carried on the second PSSCH.

As an embodiment, the second field is used to indicate one of the first PSSCH and the second PSSCH.

As an embodiment, the second domain is used to indicate one of the first resource pool and the second resource pool.

As an embodiment, the second field is used to indicate one of the first BWP and the second BWP.

As an embodiment, the second field is used to indicate one of the first carrier frequency and the second carrier frequency.

As an embodiment, the value of the second field is 1, and the first data is carried on the first PSSCH; or, the value of the second field is 0, and the first data is carried on the first PSSCH. Data is carried on the second PSSCH.

As an embodiment, the value of the second field is 0, and the first data is carried on the first PSSCH; or, the value of the second field is 1, and the first data is carried on the first PSSCH. Data is carried on the second PSSCH.

Example 10

Embodiment 10 illustrates a structural block diagram of a processing device in the first node, as shown in FIG. 10 . In Embodiment 10, the first node device processing apparatus 1000 mainly consists of a first transmitter 1001 and a second transmitter 1002.

As an embodiment, the first transmitter 1001 includes the antenna 452 and the transmitter/receiver 454 in Figure 4 of this application. At least one of processor 457, transmit processor 468, controller/processor 459, memory 460 and data source 467.

As an embodiment, the second transmitter 1002 includes the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, and the memory 460 in Figure 4 of this application. and at least one of data sources 467.

In Embodiment 10, the first transmitter 1001 sends the first-level control information on the first PSCCH; the second transmitter 1002 sends either the second-level control information or the first data on the first PSSCH. At least the former; the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is Used to determine the format of the second-level control information, where candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes decoding the first data information.

As an embodiment, whether the first data is carried on the first PSSCH is related to the format of the second-level control information; the format of the second-level control information is the SCI format. 2-A, one of the SCI format 2-B or the SCI format 2-C, the first data is carried on the first PSSCH, or the second-level control information The format is the first information format, and the first data is not carried on the first PSSCH.

As an embodiment, the second transmitter 1002 sends the first data on the second PSSCH; the format of the second-level control information is the first information format, and the second-level control information Only the former of the two and the first data is carried on the first PSSCH; the second PSSCH is different from the first PSSCH.

As an embodiment, the first-level control information is the first-level SCI, and the format of the first-level control information is SCI format 1-A, or the format of the first-level control information is SCI format 1-B.

As an embodiment, the first information format is SCI format 2-D.

As an embodiment, the first information format includes a second field, and the second field is used to determine whether the first data is carried on the first PSSCH.

As an embodiment, the first node 1000 is user equipment.

As an embodiment, the first node 1000 is a relay node.

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

Example 11

Embodiment 11 illustrates a structural block diagram of a processing device in the second node, as shown in FIG. 11 . In Embodiment 11, the second node device processing device 1100 mainly consists of a first receiver 1101 and a second receiver 1102.

As an embodiment, the first receiver 1101 includes the antenna 420, the transmitter/receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processor 475, and the memory 476 in Figure 4 of this application. at least one of.

As an embodiment, the second receiver 1102 includes the antenna 420, the transmitter/receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, the controller/processor 475, and the memory 476 in Figure 4 of this application. at least one of.

In Embodiment 11, the first receiver 1101 receives the first-level control information on the first PSCCH; the second receiver 1102 receives both the second-level control information and the first data on the first PSSCH. At least the former; the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is Used to determine the format of the second-level control information, where candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes decoding the first data information.

As an embodiment, whether the first data is carried on the first PSSCH is related to the format of the second-level control information; the format of the second-level control information is the SCI format. 2-A, one of the SCI format 2-B or the SCI format 2-C, the first data is on the first PSSCH, or all of the second-level control information The format is the first information format, the first data is not carried on the first PSSCH.

As an embodiment, the second receiver 1102 receives the first data on the second PSSCH; the format of the second-level control information is the first information format, and the second-level control information Only the former of the two and the first data is on the first PSSCH; the second PSSCH is different from the first PSSCH.

As an embodiment, the first information format is SCI format 2-D.

As an embodiment, the first information format includes a second field, and the second field is used to determine whether the first data is transmitted on the first PSSCH.

As an embodiment, the second node 1100 is user equipment.

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

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

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 of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in the form of hardware or in the form of software function modules. This application is not limited to any specific form of combination of software and hardware. The first node devices in this application include but are not limited to mobile phones, tablets, laptops, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle communication devices, aircraft, aircraft, drones, remote control aircraft, etc. Wireless communications equipment. The second node devices in this application include but are not limited to mobile phones, tablets, laptops, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle communication devices, aircraft, aircraft, drones, remote control aircraft, etc. Wireless communications equipment. The user equipment or UE or terminal in this application includes but is not limited to mobile phones, tablets, laptops, Internet cards, low-power devices, eMTC devices, NB-IoT devices, vehicle-mounted communication equipment, aircraft, aircraft, drones, remote controls Wireless communication equipment such as aircraft. The base station equipment or base station or network side equipment in this application includes but is not limited to macro cell base station, micro cell base station, home base station, relay base station, eNB, gNB, transmission and reception node TRP, GNSS, relay satellite, satellite base station, aerial Base stations 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 modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A first node used for wireless communication, characterized by including:

The first transmitter sends the first-level control information on the first PSCCH;

a second transmitter that sends at least the former of the second-level control information and the first data on the first PSSCH;

Wherein, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is used to Determine the format of the second-level control information, and candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data .
The first node according to claim 1, characterized in that whether the first data is carried on the first PSSCH is related to the format of the second-level control information; the second-level control The format of the information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, and the first data is carried on the first PSSCH. , or the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.
The first node according to claim 1 or 2, characterized in that it includes:

The second transmitter sends the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is carried on the first PSSCH; The second PSSCH is different from the first PSSCH.
The first node according to claim 3, wherein the second PSSCH and the first PSSCH respectively belong to two different resource pools.
The first node according to claim 3, wherein the second PSSCH and the first PSSCH are respectively associated with two different spatial filters (Spatial Filters).
The first node according to any one of claims 3 to 5, characterized in that the format of the second level control information is the first information format, and the second level control information is used to determine the second PSSCH.
The first node according to any one of claims 3 to 5, characterized in that the format of the second level control information is the first information format, and the second level control information is used used to determine the spatial filter associated with the second PSSCH.
The first node according to any one of claims 1 to 5, characterized in that the first-level control information is a first-level SCI ( 1st -stage SCI), and the first-level control information The format is SCI format 1-A, or the format of the first-level control information is SCI format 1-B.
The first node according to any one of claims 1 to 5, characterized in that the first information format is SCI format 2-D.
The first node according to claim 1 or 2, characterized in that the first information format includes a second field, the second field is used to determine whether the first data is carried on the first PSSCH on.
A second node used for wireless communication, characterized by including:

The first receiver receives the first-level control information on the first PSCCH;

a second receiver that receives at least the former of the second-level control information and the first data on the first PSSCH;

Wherein, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is used to Determine the format of the second-level control information, and candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data .
The second node according to claim 11, characterized in that whether the first data is carried on the first PSSCH is related to the format of the second-level control information; the second-level control The format of the information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, and the first data is carried on the first PSSCH. , or the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.
The second node according to claim 11 or 12, characterized in that it includes:

The second receiver receives the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is carried on the first PSSCH; The second PSSCH is different from the first PSSCH.
The second node according to claim 13, characterized in that the second PSSCH and the first PSSCH respectively belong to two different resource pools.
The second node according to claim 13, characterized in that the second PSSCH and the first PSSCH are respectively associated with two different spatial filters (Spatial Filters).
The second node according to any one of claims 13 to 15, characterized in that the format of the second level control information is the first information format, and the second level control information is used to determine the second PSSCH.
The second node according to any one of claims 13 to 15, characterized in that the format of the second level control information is the first information format, and the second level control information is used used to determine the spatial filter associated with the second PSSCH.
The second node according to any one of claims 11 to 15, characterized in that the first-level control information is a first-level SCI ( 1st -stage SCI), and the first-level control information The format is SCI format 1-A, or the format of the first-level control information is SCI format 1-B.
The second node according to any one of claims 11 to 15, characterized in that the first information format is SCI format 2-D.
The second node according to claim 11 or 12, characterized in that the first information format includes a second field, the second field is used to determine whether the first data is carried on the first PSSCH on.
A method used in a first node of wireless communication, characterized by comprising:

Send first-level control information on the first PSCCH;

sending at least the former of the second-level control information and the first data on the first PSSCH;

Wherein, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is used to Determine the format of the second-level control information, and candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data .
The method in the first node according to claim 21, wherein whether the first data is carried on the first PSSCH is related to the format of the second-level control information; The format of the secondary control information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, and the first data is carried in the third on a PSSCH, or the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.
The method in the first node according to claim 21 or 22, characterized in that it includes:

sending the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is carried on the first PSSCH; The second PSSCH is different from the first PSSCH.
The method in the first node according to claim 23, wherein the second PSSCH and the first PSSCH respectively belong to two different resource pools.
The method in the first node according to claim 23, wherein the second PSSCH and the first PSSCH are respectively associated with two different spatial filters (Spatial Filters).
The method in the first node according to any one of claims 23 to 25, characterized in that the format of the second-level control information is the first information format, and the second-level control information The information is used to determine the second PSSCH.
The method in the first node according to any one of claims 23 to 25, characterized in that the format of the second-level control information is the first information format, and the second-level control information The information is used to determine the spatial filter associated with the second PSSCH.
The method in the first node according to any one of claims 21 to 25, characterized in that the first The first-level control information is the first-level SCI ( 1st -stage SCI), and the format of the first-level control information is SCI format 1-A, or the format of the first-level control information is SCI format 1- B.
The method in the first node according to any one of claims 21 to 25, characterized in that the first information format is SCI format 2-D.
The method in the first node according to claim 21 or 22, characterized in that the first information format includes a second field, the second field is used to determine whether the first data is carried in the Said on the first PSSCH.
A method used in a second node of wireless communication, characterized by comprising:

receiving first-level control information on the first PSCCH;

receiving at least the former of the second level control information and the first data on the first PSSCH;

Wherein, the first-level control information is used to determine the first PSSCH; the first-level control information includes a first field, the first field includes two information bits, and the first field is used to Determine the format of the second-level control information, and candidates for the format of the second-level control information include SCI format 2-A, SCI format 2-B, SCI format 2-C and the first information format; The SCI format 2-A includes a propagation type indication, the SCI format 2-B includes a region identifier, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data .
The method in the second node according to claim 31, wherein whether the first data is carried on the first PSSCH is related to the format of the second-level control information; The format of the secondary control information is one of the SCI format 2-A, the SCI format 2-B or the SCI format 2-C, and the first data is carried in the third on a PSSCH, or the format of the second-level control information is the first information format, and the first data is not carried on the first PSSCH.
The method in the second node according to claim 31 or 32, characterized in that it includes:

receiving the first data on the second PSSCH;

Wherein, the format of the second-level control information is the first information format, and only the former of the second-level control information and the first data is carried on the first PSSCH; The second PSSCH is different from the first PSSCH.
The method in the second node according to claim 33, wherein the second PSSCH and the first PSSCH respectively belong to two different resource pools.
The method in the second node according to claim 33, wherein the second PSSCH and the first PSSCH are respectively associated with two different spatial filters (Spatial Filters).
The method in the second node according to any one of claims 33 to 35, characterized in that the format of the second-level control information is the first information format, and the second-level control information The information is used to determine the second PSSCH.
The method in the second node according to any one of claims 33 to 35, characterized in that the format of the second-level control information is the first information format, and the second-level control information The information is used to determine the spatial filter associated with the second PSSCH.
The method in the second node according to any one of claims 31 to 35, characterized in that the first level control information is a first level SCI ( 1st -stage SCI), and the first level The format of the control information is SCI format 1-A, or the format of the first-level control information is SCI format 1-B.
The method in the second node according to any one of claims 31 to 35, characterized in that the first information format is SCI format 2-D.
The method in the second node according to claim 31 or 32, characterized in that the first information format includes a second field, the second field is used to determine whether the first data is carried in the Said on the first PSSCH.