CN117544284A - Method and apparatus in a node for wireless communication - Google Patents

Method and apparatus in a node for wireless communication Download PDF

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Publication number
CN117544284A
CN117544284A CN202210916297.0A CN202210916297A CN117544284A CN 117544284 A CN117544284 A CN 117544284A CN 202210916297 A CN202210916297 A CN 202210916297A CN 117544284 A CN117544284 A CN 117544284A
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China
Prior art keywords
format
control information
level control
pssch
information
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CN202210916297.0A
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Chinese (zh)
Inventor
刘瑾
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Priority to CN202210916297.0A priority Critical patent/CN117544284A/en
Priority to PCT/CN2023/110081 priority patent/WO2024027609A1/en
Publication of CN117544284A publication Critical patent/CN117544284A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method and apparatus in a node for wireless communication is disclosed. The first node sends first-stage control information on a first PSCCH; transmitting at least the first of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information includes a first field used to determine a format of the second level control information, candidates of the format of the second level control information including SCI format 2-a, SCI format 2-B, SCI format 2-C, and a first information format; the first information format includes information related to decoding the first data. The method and the device solve the problem of identifying the decoupled control information and SL data.

Description

Method and apparatus in a node for wireless communication
Technical Field
The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus related to a Sidelink (sidlink) in wireless communication.
Background
Starting from LTE (Long Term Evolution ), 3GPP (3 rd Generation Partner Project, third generation partnership project) has been developing SL (Sidelink) as a direct communication means between users, and the first NR SL (New Radio Sidelink, new air interface Sidelink) standard of "5G V2X with NR Sidelink" has been completed in Rel-16 (Release-16, release 16). In Rel-16, NR SL is mainly designed for V2X (Vehicle-To-evaluation), but it can also be used for Public Safety (Public Safety). With further enhancements in NR SL, rel-17 introduces periodic partial awareness (PBPS), continuous partial awareness (contiguous partial sensing, CPS), random selection (random selection) and discontinuous reception (Discontinuous Reception, DRX) power saving schemes, and also introduces various inter-user coordination (inter-UE coordination) schemes to provide more reliable channel resources.
In order to meet the commercialized application scenario, the industry has put new demands on V2X, higher data throughput and support for new carrier frequencies. Thus, on 3GPP RAN- #94e conferences, the standardization work of NR V2X Rel-18 was formally initiated by work item description (Work Item Description, WID) RP-213678 for NR SL evolution.
Disclosure of Invention
According to the working plan in RP-213678, NR Rel-18 needs to support SL carrier aggregation (Carrier Aggregation, CA) technology and Multi-beam (Multi-beam) technology, and data and control information of each User (UE) may employ different resource pools, carrier components and beam transmission. Whereas in the existing NR Rel-16/17 system, users transmit a first level SCI on a PSCCH and second level SCI and SL data on a PSSCH, which are coupled in a contiguous block of time-frequency resources. When the user uses different resource pools, different Bandwidth parts (BWP), different carrier components (Carrier Component, CC) or different beams to transmit control information and SL data, the end user may not identify the decoupled resources, resulting in reduced reliability of SL transmission.
In view of the above problems, the present application discloses a method for indicating control information, so that a peer user effectively identifies a decoupling resource, and improves the reliability of SL transmission. It should be noted that, without conflict, the embodiments in the user equipment and the features in the embodiments of the present application may be applied to the base station, and vice versa. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict. Further, while the purpose of the present application is for SL, the present application can also be used for UL (Uplink). Further, while the present application is primarily directed to single carrier communications, the present application can also be used for multi-carrier communications. Further, while the present application is primarily directed to single antenna communications, the present application can also be used for multiple antenna communications. Further, although the present application is initially directed to a V2X scenario, the present application is also applicable to a communication scenario between a terminal and a base station, between a terminal and a relay, and between a relay and a base station, to achieve similar technical effects in a V2X scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to V2X scenarios and communication scenarios of terminals with base stations) also helps to reduce hardware complexity and cost.
It should be noted that the term (terminal) in the present application is explained with reference to the definitions in the specification protocols TS36 series, TS37 series and TS38 series of 3GPP, but can also refer to the definitions of the specification protocols of IEEE (Institute ofElectrical and Electronics Engineers ).
The application discloses a method used in a first node of wireless communication, comprising the following steps:
transmitting first level control information on a first PSCCH;
transmitting at least the first 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
As one embodiment, the problem to be solved by the present application is: when the user adopts the decoupled resources to respectively transmit the control information and the SL data, the opposite end user may not recognize the decoupled resources, which may reduce the reliability of the SL transmission.
As one embodiment, the method of the present application is: a first information format is introduced.
As one embodiment, the method of the present application is: the first information format is associated with a first field.
As one embodiment, the method of the present application is: and constructing a mapping relation between the value of the first domain and the format candidate of the second-level control information.
As an embodiment, the above method has the advantage that the opposite end user effectively identifies the decoupling resource, and improves the reliability of SL transmission.
According to an aspect of the present application, the above method is characterized in that whether said first data is carried on said first PSSCH is related to said format of said second level control information; 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, the first data is carried on the first PSSCH, or the format of the second level control information is the first information format, the first data is not carried on the first PSSCH.
According to one aspect of the present application, the method is characterized by comprising:
transmitting the first data on a second PSSCH;
wherein the format of the second-level control information is the first information format, only the former of the second-level control information and the first data being 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 belong to two different resource pools, respectively.
According to one aspect of the application, the above method is characterized in that the second PSSCH is associated with two different Spatial Filters (Spatial Filters) respectively with the first 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.
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 spatial filter associated with the second PSSCH.
According to one aspect of the present application, the above method is characterized in that the first level control information is a first level SCI (1 st-stage 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.
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 an aspect of the present application, the above method is characterized in that the first information format comprises a second field, which is used to determine whether the first data is carried on the first PSSCH.
According to an aspect of the present application, the above method is characterized in that the first node is a user equipment.
According to an aspect of the present application, the above method is characterized in that the first node is a relay node.
According to an aspect of the present application, the above method is characterized in that the first node is a base station.
The application discloses a method used in a second node of wireless communication, comprising the following steps:
receiving first stage control information on a first PSCCH;
receiving at least the first 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
According to an aspect of the present application, the above method is characterized in that whether said first data is carried on said first PSSCH is related to said format of said second level control information; 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, the first data is on the first PSSCH, or the format of the second level control information is the first information format, the first data is not carried on the first PSSCH.
According to one aspect of the present application, the method is characterized by comprising:
receiving the first data on a second PSSCH;
wherein the format of the second level control information is the first information format, only the former of the second level control information and the first data being 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 belong to two different resource pools, respectively.
According to one aspect of the application, the above method is characterized in that the second PSSCH is associated with two different Spatial Filters (Spatial Filters) respectively with the first 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.
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 spatial filter associated with the second PSSCH.
According to one aspect of the present application, the above method is characterized in that the first level control information is a first level SCI (1 st-stage 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.
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 an aspect of the present application, the above method is characterized in that the first information format comprises a second field, which is used to determine whether the first data is carried on the first PSSCH.
According to an aspect of the present application, the above method is characterized in that the second node is a user equipment.
According to an 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.
The application discloses a first node used for wireless communication, which is characterized by comprising:
a first transmitter transmitting first level control information on a first PSCCH;
a second transmitter transmitting 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
The application discloses a second node for wireless communication, comprising:
a first receiver that receives first stage control information on a first PSCCH;
a second receiver 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
As one example, the present application has the following advantages:
the problem to be solved by the present application is: when the user adopts the decoupled resources to respectively transmit the control information and the SL data, the opposite end user may not recognize the decoupled resources, which may reduce the reliability of the SL transmission.
The present application incorporates a first information format.
The present application establishes a relationship between the first information format and the first domain.
The present application builds a mapping between the values of the first field and the candidates of the format of the second-level control information.
In the present application, the opposite end user can effectively identify the decoupling resources, and improve the reliability of SL transmission.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:
FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the present application;
FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the present application;
fig. 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to one embodiment of the present application;
FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the present application;
Fig. 5 shows a wireless signal transmission flow diagram according to one embodiment of the present application;
FIG. 6 illustrates a schematic diagram of a relationship between a first field and a first information format according to one embodiment of the present application;
fig. 7 shows a schematic diagram of a relationship between a first PSCCH, the first PSCCH, and a second PSCCH according to an embodiment of this application;
fig. 8 shows a schematic diagram of a relationship between a first PSCCH, a first PSSCH, and a second PSSCH according to an embodiment of the present application;
FIG. 9 illustrates a schematic diagram of a relationship between first level control information, second level control information, and first data, according to one embodiment of the present application;
FIG. 10 illustrates a block diagram of a processing device for use in a first node according to one embodiment of the present application;
fig. 11 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the present application.
Detailed Description
The technical solution of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a process flow diagram of a first node of one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step.
In embodiment 1, a first node in the present application first performs step 101 to send first-level control information on a first PSCCH; then step 102 is performed to transmit at least the former of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, 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 first PSCCH is a PSCCH (Physical Sidelink Control Channel ).
As an embodiment, the first PSCCH comprises at least one multicarrier Symbol (Symbol) in the time domain.
As an embodiment, the first PSCCH comprises at least one 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 comprises a plurality of Subcarriers (Subcarriers) in the frequency domain.
As an embodiment, the first PSCCH comprises at least one physical resource block (Physical Resource Block, PRB) in the frequency domain.
As an embodiment, the first PSCCH comprises at least one sub-channel (sub-channel) 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 comprises a plurality of REs (Resource Elements ).
As an embodiment, any RE of the plurality of REs included in the first PSCCH occupies one multicarrier symbol in a time domain, and any RE of the plurality of REs included in the first PSCCH occupies one subcarrier in a frequency domain.
As an embodiment, the first PSCCH comprises a plurality of multicarrier symbols in the time domain and the first PSCCH comprises a plurality of physical resource blocks in the frequency domain.
As an embodiment, the first PSCCH is used for SL (Sidelink) transmission or communication.
As an embodiment, the first PSSCH is a PSSCH (Physical Sidelink Shared Channel ).
As an embodiment, the first PSSCH includes at least one multicarrier symbol in a time domain.
As an embodiment, the first PSSCH includes at least one slot in a time domain.
As an embodiment, the first PSSCH belongs to one slot in the time domain.
As one embodiment, the first PSSCH includes a plurality of subcarriers in a 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 subchannel in a frequency domain.
As an embodiment, the first PSSCH belongs to one sub-channel in the frequency domain.
As one embodiment, the first PSSCH includes a plurality of REs.
As an embodiment, any RE of the plurality of REs included in the first PSSCH occupies one multicarrier symbol in a time domain, and any RE of the plurality of REs included in the first PSSCH occupies one subcarrier in a frequency domain.
As one embodiment, the first PSSCH includes a plurality of multicarrier symbols in a time domain, and the first PSSCH includes at least one subchannel in a frequency domain.
As one embodiment, the first PSSCH is used for SL transmission or communication.
As an embodiment, any of the at least one multicarrier symbol comprised by the first PSCCH is a SC-FDMA (Single-carrier-frequency division multiple access) symbol.
As an embodiment, any of the at least one multicarrier symbol comprised by the first PSCCH is a DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal FrequencyDivisionMultiplexing ) symbol.
As an embodiment, any of the at least one multicarrier symbol comprised by the first PSCCH is an FDMA (Frequency Division Multiple Access ) symbol.
As an embodiment, any of the at least one multicarrier symbol comprised by the first PSCCH is a FBMC (filter bank Multi-Carrier) symbol.
As an embodiment, any of the at least one multicarrier symbol comprised by the first PSCCH is an IFDMA (Interleaved Frequency Division Multiple Access ) symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSSCH is an SC-FDMA symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSSCH is a DFT-S-OFDM symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSSCH is an FDMA symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSSCH is an FBMC symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSSCH is an IFDMA symbol.
As an embodiment, the first level control information is a first level SCI (1 st Stage Sidelink Control Information first stage auxiliaryLink control information).
For an embodiment, the definition of the first stage SCI is described in section 8.3 of 3gpp ts 38.212.
As an embodiment, the first level control information is used to transmit sidelink scheduling information.
As an embodiment, the first stage control information is carried on the first PSCCH.
As one embodiment, the first level control information is used to determine the first PSSCH.
As one 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 information about the first PSSCH.
As an embodiment, the first level control information is used to indicate information about the first data.
As an embodiment, the first level control information is used to indicate information about the second level control information.
As an embodiment, the first level control information is used to indicate 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 a priority of the first data.
As an embodiment, the first level control information is used to indicate the DMRS (Demodulation Reference Signal ) employed 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 example, 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, the candidates of 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 one embodiment, the SCI format 1-a includes priority, frequency resource allocation (frequency resource assignment), time resource allocation (time resource assignment), resource reservation period (resource reservation period), demodulation reference signal pattern (DMRS pattern), second-level SCI format (2) nd -stage SCI format), beta offset indication (beta_offset indicator), demodulation reference signal port number (Number of DMRS port), modulation coding scheme (MCS, modulation andcoding scheme), additional MCS table indication (Additional MCS table indicator), physical sidelink feedback channel overhead indication (PSFCH, physical Sidelink Feedback Channel, overhead indicator) and collision information receiver flag (Conflict information receiver flag).
For one embodiment, the SCI format 1-A is defined in section 8.3.1.1 of 3GPP TS 38.212.
As an embodiment, the second level control information is a second level SCI (2 nd Stage Sidelink Control Information, second level sidelink control information).
For an embodiment, the definition of the second level SCI is described in section 8.4 of 3gpp ts 38.212.
As an embodiment, the second level control information is used to transmit at least one of sidelink scheduling information and information about inter-UE coordination (inter-UE coordination).
As an embodiment, the second level control information is used for transmitting sidelink scheduling information.
As an embodiment, the second level control information is used to transmit information about coordination between user equipments.
As one 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 embodiment, the format of the second level control information is one of SCI format2-a (SCI format 2-a), SCI format 2-B (SCI format 2-B), SCI format2-C (SCI format 2-C) and first information format.
As an embodiment, the candidates of the format of the second level control information include SCI format2-a, SCI format 2-B, SCI format2-C and first information format.
As an embodiment, said format of said second level control information is SCI format 2-a.
As an embodiment, said format of said second level control information is SCI format 2-B.
As an embodiment, said format of said 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 one embodiment, the SCI format 2-a includes a propagation type indication (Cast type indicator).
As an embodiment, the SCI format 2-a includes a hybrid automatic repeat request process number (HARQ, hybrid Automatic Repeat reQuest, process number), a new data indication (New data indicator), a redundancy version (Redundancy version), a Source ID (Source Identity), a Destination ID (Destination ID, destination Identity), a HARQ feedback enable/disable indication (HARQ feedback enabled/disable indicator), a propagation type indication, a channel state information request (CSI request, channel State Information request).
For one embodiment, the SCI format 2-A is defined in section 8.4.1.1 of 3GPP TS 38.212.
As an embodiment, the format of the second level control information is SCI format 2-a, the second level control information being used to indicate that the propagation type of the first data is one of broadcast, multicast or unicast.
As an example, the SCI format 2-B includes Zone Identity (Zone ID).
As one embodiment, the SCI format 2-B includes a communication range requirement (Communication range requirement).
As an embodiment, the SCI format 2-B includes a hybrid automatic repeat request process number, a new data indication, a redundancy version, a source identification, a destination identification, a HARQ feedback enable/disable indication, a region identification, and a communication range requirement.
For one embodiment, the SCI format 2-B is defined in section 8.4.1.2 of 3GPP TS 38.212.
As an embodiment, the format of the second level control information is SCI format 2-B, the second level control information being used to indicate a region identification of the first node.
As an embodiment, the format of the second level control information is SCI format 2-B, the second level control information being used to indicate the communication range requirements of the first node.
As one embodiment, the SCI format 2-C includes a provide/request indication.
As an embodiment, the SCI format 2-C includes a hybrid automatic repeat request process number, a new data indication, a redundancy version, a source identification, a destination identification, a HARQ feedback enable/disable indication, a provide/request indication.
For one embodiment, the SCI format 2-C is defined in section 8.4.1.3 of 3GPP TS 38.212.
As an embodiment, the format of the second level control information is SCI format 2-C, the second level control information is used to provide (provide) Inter-user equipment coordination information (Inter-UE coordination information), or the second level control information is used to request (request) Inter-user equipment coordination information.
As an embodiment, the format of the second level control information is SCI format 2-C, which is used to provide inter-user equipment coordination information.
As one embodiment, the format of the second level control information is SCI format 2-C, and the second level control information is used to request inter-user equipment coordination information.
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 comprises a Packet (Packet).
As one embodiment, the first data includes sidelink data (SL data).
As one embodiment, the first data includes available SL data in one or more logical channels.
As an embodiment, the first data comprises one or more MAC PDUs (Protocol Data Units ).
As an embodiment, the first data comprises one or more MAC SDUs (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 comprises all or part of a Higher layer (Higher layer) signaling.
As an embodiment, the first data comprises an RRC-IE (Radio Resource Control-Information Element ).
As an embodiment, the first data comprises a MAC-CE (Multimedia Access Control-Control Element ).
As an embodiment, the first data is carried on a PSSCH.
As an embodiment, the first data is carried on the first PSSCH or the second PSSCH.
As one 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), multicast (Groupcast) or Broadcast (Broadcast).
As an embodiment, the first data comprises a first bit block comprising 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 is from the SL-SCH (Sidelink SharedChannel ).
As an embodiment, the first bit block includes 1 CW (code word).
As one 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 attached (attached) by a transmission block level CRC (Cyclic Redundancy Check ), a Coding block segment (Code Block Segmentation), a Coding block level CRC Attachment, channel Coding (Channel Coding), rate Matching (Rate Matching), coding block concatenation (Code Block Concatenation), scrambling (scrambling), modulation (Modulation), layer mapping (LayerMapping), antenna port mapping (Antenna Port Mapping), mapping to physical resource blocks (Mappingto Physical Resource Blocks), baseband signal generation (Baseband Signal Generation), modulation and up-conversion (Modulation and Upconversion), and the first data is obtained.
As an embodiment, the first data is output after the first bit block sequentially passes through a modulation Mapper (Modulation Mapper), a Layer Mapper (Layer Mapper), a Precoding (Precoding), a resource element Mapper (Resource Element Mapper), and a multicarrier symbol Generation (Generation).
As an embodiment, the channel coding is based on polar (polar) codes.
As an embodiment, the channel coding is based on an LDPC (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 fig. 2. Fig. 2 illustrates a diagram of a network architecture 200 of a 5g nr, LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System)/EPS (Evolved Packet System ) 200 by some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, NG-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS may 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 providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology. In NTN networks, examples of the gNB203 include satellites, aircraft, or ground base stations relayed through satellites. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function ) 212, and P-GW (Packet Date Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services.
As an embodiment, the first node in the present application comprises the UE201.
As an embodiment, the second node in the present application includes the UE241.
As an embodiment, the user equipment in the present application includes the UE201.
As an embodiment, the user equipment in the present application includes the UE241.
As an embodiment, the sender of the first level control information in the present application includes the UE201.
As an embodiment, the receiver of the first level control information in the present application includes the UE241.
As an embodiment, the sender of the second level control information in the present application includes the UE201.
As an embodiment, the receiver of the second level control information in the present application includes the UE241.
As an embodiment, the receiver of the first data in the present application includes the UE201.
As an embodiment, the sender of the first data in the present application includes the UE241.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture according to one user plane and control plane of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node device (RSU in UE or V2X, in-vehicle device or in-vehicle communication module) and a second node device (gNB, RSU in UE or V2X, in-vehicle device or in-vehicle communication module), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node device and the second node device and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (PacketData Convergence Protocol ) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for the first node device to the second node device. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and 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 the various radio resources (e.g., resource blocks) in one cell among the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), and the radio protocol architecture for the first node device and the second node device in the user plane 350 is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service Data Adaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.
As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.
As an embodiment, the first data in the present application is generated in the MAC sublayer 302.
As an embodiment, the first data in the present application is generated in the RRC sublayer 306.
As an embodiment, the first data in the present application is transmitted to the PHY301 via the MAC sublayer 302.
As an embodiment, the first level control information in the present application is generated in the PHY301.
As an embodiment, the first level control information in the present application is generated in the MAC sublayer 302.
As an embodiment, the first level control information in the present application is transmitted to the PHY301 via the MAC sublayer 302.
As an embodiment, the second level control information in the present application is generated in the PHY301.
As an embodiment, the second level control information is generated in the MAC sublayer 302.
As an embodiment, the second level control information in the present application is transmitted to the PHY301 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. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 in communication with each other in an access network.
The first communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.
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 an antenna 452.
In the transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the first communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as mapping of signal clusters 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 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.
In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal at the second communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier 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 for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the 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 receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the 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 data 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 the transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.
In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.
As an embodiment, the first node in the present application includes the second communication device 450, and the second node in the present application includes the first communication device 410.
As a sub-embodiment of the above embodiment, the first node is a user equipment and the second node is a user equipment.
As a sub-embodiment of the above embodiment, the first node is a 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 a 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 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 error detection using a positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.
As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 means at least: transmitting first level control information on a first PSCCH; transmitting at least the first of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, 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 second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: transmitting first level control information on a first PSCCH; transmitting at least the first of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: receiving first stage control information on a first PSCCH; receiving at least the first of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving first stage control information on a first PSCCH; receiving at least the first of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, 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 example, at least one of 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 source 467 is used for transmitting first level control information on a first PSCCH in the present application.
As an example, at least one of 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 source 467 is used for transmitting second level control information on the first PSSCH in the present application.
As an example, at least one of 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 source 467 is used in the present application to transmit first data on a first PSSCH.
As an example, at least one of 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 source 467 is used in the present application to transmit first data on the second PSSCH.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to receive first stage control information on the first PSCCH.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to receive second level control information on the first PSSCH.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to receive the first data on the first PSSCH.
As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to receive the first data on the second PSSCH.
Example 5
Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 5. In fig. 5, communication is performed between a first node U1 and a second node U2 via an air interface. In fig. 5, the steps in the dashed box F0 and the dashed release F1 are optional, respectively.
For the followingFirst node U1Transmitting first-level control information on the first PSCCH in step S11; transmitting second-level control information on the first PSSCH in step S12; the first data is transmitted on the first PSSCH in step S13 or the second PSSCH in step S14.
For the followingSecond node U2Receiving first level control information on a first PSCCH in step S21; receiving second level control information on the first PSSCH in step S22; the first data is received on the first PSSCH in step S23 or 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information about decoding the first 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 a 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, the first data being 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 discarded from 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, the second PSSCH being 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 respectively associate two different spatial filters and the second level control information is used to determine the spatial filter with which the second PSSCH is associated.
As an embodiment, the format of the second level control information is the first information format, the first information format comprising a second field, the second field being used to determine whether the first data is carried on the first PSSCH.
As an embodiment, the communication between the first node U1 and the second node U2 is performed through a PC5 interface.
As an example, the steps in block F0 of fig. 5 are present and the steps in block F1 of fig. 5 are absent.
As an example, the steps in block F0 of fig. 5 are absent and the steps in block F1 of fig. 5 are present.
As an example, the steps in block F0 of fig. 5 are absent, and the steps in block F1 of fig. 5 are absent.
As an example, the steps in block F0 of fig. 5 exist, and the steps in block F1 of fig. 5 exist.
As an example, 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, the step in block F0 in fig. 5 exists, and the step in block F1 in fig. 5 does not exist.
As an example, when the format of the second level control information is the first information format, the step in block F0 in fig. 5 does not exist, and the step in block F1 in fig. 5 exists.
As an embodiment, when the format of the second level control information is the first information format, the step in block F0 in fig. 5 does not exist, and the step in block F1 in fig. 5 does not exist.
As an embodiment, when the format of the second level control information is the first information format, the step in block F0 in fig. 5 exists, and the step in block F1 in fig. 5 exists.
As an embodiment, the second PSSCH is a PSSCH.
As an embodiment, the second PSSCH includes at least one multicarrier symbol in a time domain.
As an embodiment, the second PSSCH includes at least one slot in a time domain.
As an embodiment, the second PSSCH belongs to one slot in the time domain.
As an embodiment, the second PSSCH includes a plurality of subcarriers in a 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 a frequency domain.
As an embodiment, the second PSSCH belongs to one sub-channel in the frequency domain.
As one embodiment, the second PSSCH includes a plurality of REs.
As an embodiment, any RE of the plurality of REs included in the second PSSCH occupies one multicarrier symbol in a time domain, and any RE of the plurality of REs included in the second PSSCH occupies one subcarrier in a frequency domain.
As one embodiment, the second PSSCH includes a plurality of multicarrier symbols in a time domain, and the second PSSCH includes at least one subchannel in a frequency domain.
As one embodiment, the second PSSCH is used for SL transmission or communication.
As an embodiment, any one of the at least one multicarrier symbol included in the second PSSCH is an SC-FDMA symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the second PSSCH is a DFT-S-OFDM symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the second PSSCH is an FDMA symbol.
As an embodiment, any one of the at least one multicarrier symbol included in the second PSSCH is an FBMC symbol.
As an embodiment, any one of the at least one multicarrier 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 respectively belong to two different resource pools.
As an embodiment, the second PSSCH and the first PSSCH respectively belong to two different Bandwidth components (BWPs).
As an embodiment, the second PSSCH and the first PSSCH respectively belong to two different carrier frequencies (Carrier Frequencies).
As an embodiment, the second PSSCH is associated with two different spatial filters, respectively, with the first PSSCH.
As an embodiment, the second PSSCH is FDM (Frequency Division Multiplexing, frequency division multiplexed) with the first PSSCH.
As an embodiment, the second PSSCH is TDM (Time Division Multiplexing, time division multiplexed) with the first PSSCH.
As an embodiment, the second PSSCH is SDM (Spatial Division Multiplexing, space division multiplexed) with the first PSSCH.
Example 6
Embodiment 6 illustrates a schematic diagram of a relationship between a first field and a first information format according to one embodiment of the present application, as shown in fig. 6.
In embodiment 6, the candidates of 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 first level control information comprises a first field comprising two information bits, the first field being used to determine the format of the second level control information from the candidates for the format of the second level control information.
As an embodiment, the first information format is SCI format 2-D.
As an embodiment, the first information format is used for decoding the first data.
As an embodiment, the first information format includes information about decoding the first data.
As an embodiment, the first information format comprises an indication of a resource pool.
As an embodiment, the first information format comprises a resource pool indication.
As an embodiment, the first information format includes a resource pool index.
As an embodiment, the first information format comprises an indication about a carrier frequency (carrier frequency).
As an embodiment, the first information format comprises a carrier frequency indication.
As an embodiment, the first information format comprises a carrier frequency index.
As an embodiment, the first information format comprises an indication about a Bandwidth component (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 a resource pool to which the second PSSCH belongs.
As an embodiment, the format of the second level control information is the first information format, the second level control information being used to indicate a 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 a carrier frequency to which the second PSSCH belongs.
As an embodiment, the format of the second level control information is the first information format, the second level control information being used to indicate a 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 a BWP to which the second PSSCH belongs.
As an embodiment, the format of the second level control information is the first information format, the second level control information being used to indicate a second BWP.
As one embodiment, the format of the second level control information is the first information format, the second level control information being 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 second level control information being used to determine a second spatial filter.
As an embodiment, the first level control information comprises a first field.
As one embodiment, the first level control information includes a plurality of domains, and the first domain is one of the plurality of domains included in the first level control information.
As an embodiment, the first level control information comprises the first field, the first field comprising two information bits.
As an embodiment, the first field comprising two information bits means that the first field is mapped to 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 of the plurality of information bits included in the first-level control information.
As an embodiment, the first level control information comprises a plurality of information bits, and the first field is mapped to two information bits of the plurality of information bits included in the first level control information.
As an embodiment, the first level control information comprises a plurality of information bits, meaning that the plurality of information bits are used to generate the first level control information.
As an embodiment, the plurality of fields included in the first-level control information are mapped to at least one information bit of the plurality of information bits included in the first-level control information, respectively.
As an embodiment, the format of the first level control information is SCI format 1-a.
As an embodiment, the SCI format 1-a includes a plurality of fields, the first level control information includes a plurality of information bits, and the plurality of fields included in the SCI format are mapped to at least one information bit of the plurality of information bits included in the first level control information, respectively.
As an embodiment, the first field is one of the plurality of fields included in the SCI format 1-a, and the first field is mapped to two information bits of the plurality of information bits included in the first-level control information.
As an embodiment, the first field is used to indicate the format of the second level control information.
As an embodiment, the first domain is a second level SCI format (2 nd-stage SCI format) domain.
As an example, the definition of the 2nd-stage SCI format is described in section 8.3.1.1 of 3gpp ts 38.212.
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 format in which the first field is used to indicate the second level control information is 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 two information bits comprised by the first field indicate 4 values, respectively.
As an embodiment, the 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 relates to a 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 one 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 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; alternatively, the value of the first field is 01, and the format of the second level control information is the SCI format 2-B; alternatively, the value of the first field is 10 and the format of the second level control information is the SCI format 2-C; alternatively, 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 a relationship between a first PSCCH, a first PSSCH, and a second PSSCH, as shown in fig. 7, according to an embodiment of the present application. In fig. 7, a dashed large box represents a first resource pool in the present application; the solid large box represents the second resource pool in this application; the solid rectangles in the dashed large boxes represent the first-level control information and the second-level control information in the present application, respectively; the dashed 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 second PSSCH; the first PSSCH belongs to a first resource pool, and the second PSSCH belongs to a second resource pool, which is different from the first resource pool.
As an example of an implementation of this embodiment,
as an embodiment, the first resource pool comprises a sidelink resource pool (Sidelink Resource Pool).
As an embodiment, the first resource pool comprises all or part of the resources of a sidelink 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 an RRC (Radio Resource Control ) layer signaling.
As an embodiment, the first resource pool comprises a plurality of time slots in the time domain.
As an embodiment, any one of the plurality of slots included in the time domain by the first resource pool includes a plurality of first-type multicarrier symbols.
As an embodiment, the first resource pool comprises a plurality of physical resource blocks in the frequency domain.
As an embodiment, any one of the plurality of physical resource blocks included in the frequency domain by the first resource pool includes a plurality of first type subcarriers.
As an embodiment, the first resource pool comprises a plurality of sub-channels in the frequency domain.
As an embodiment, any one of the plurality of subchannels 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 comprises a plurality of time-frequency resource blocks of a first type.
As an embodiment, any one of the plurality of first-type time-frequency resource blocks included in the first resource pool includes a plurality of first-type multicarrier symbols in a time domain.
As an embodiment, the time domain resource occupied by any one of the plurality of first-class time-frequency resource blocks included in the first resource pool in the time domain belongs to one time slot in the first resource pool.
As an embodiment, any one of the plurality of first-type time-frequency resource blocks included in the first resource pool includes a plurality of first-type subcarriers in a frequency domain.
As an embodiment, any one of the plurality of first-type time-frequency resource blocks included in the first resource pool includes at least one physical resource block in the first resource pool in a frequency domain.
As an embodiment, the frequency domain resource occupied by any one of the plurality of first-class time-frequency resource blocks included in the first resource pool in the frequency domain belongs to one sub-channel in the first resource pool.
As an embodiment, any one of the plurality of first-type time-frequency resource blocks included in the first resource pool includes at least one subchannel in the first resource pool in the frequency domain.
As an embodiment, at least one of the plurality of first type time-frequency resource blocks comprised by the first resource pool comprises a PSCCH.
As an embodiment, at least one of the plurality of first type time-frequency resource blocks included in the first resource pool includes a PSSCH.
As an embodiment, at least one of the plurality of first type time-frequency resource blocks comprised by the first resource pool comprises a PSFCH (Physical Sidelink Feedback Channel ).
As an embodiment, at least one of the plurality of first type time-frequency resource blocks included in the first resource pool includes a PSCCH and a PSSCH.
As an embodiment, at least one of 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 one of the plurality of first type time-frequency resource blocks comprised by the first resource pool.
As an embodiment, the first PSCCH is one of the plurality of first type time-frequency resource blocks comprised by the first resource pool.
As an embodiment, any one of the at least one multicarrier symbol included in the first PSCCH in the time domain is the first type of multicarrier symbol in the first resource pool.
As an embodiment, any subcarrier of the plurality of subcarriers included in the frequency domain by the first PSCCH is the first type 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 one of the plurality of first type time-frequency resource blocks included in the first resource pool.
As an embodiment, the first PSSCH is one of the plurality of first type time-frequency resource blocks included in the first resource pool.
As an embodiment, any one of the at least one multicarrier symbol included in the time domain by the first PSSCH is the first type of multicarrier symbol in the first resource pool.
As an embodiment, any one of the plurality of subcarriers included in the frequency domain by the first PSSCH is the first type subcarrier in the first resource pool.
As an embodiment, the second resource pool comprises a sidelink resource pool.
As an embodiment, the second resource pool comprises all or part of the resources of one sidelink 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 an RRC layer signaling.
As an embodiment, the second resource pool comprises a plurality of time slots in the time domain.
As an embodiment, any one of the plurality of slots included in the time domain by the second resource pool includes a plurality of second-type multicarrier symbols.
As an embodiment, the second resource pool comprises a plurality of physical resource blocks in the frequency domain.
As an embodiment, any one of the plurality of physical resource blocks included in the frequency domain by the second resource pool includes a plurality of subcarriers of the second type.
As an embodiment, the second resource pool comprises a plurality of sub-channels in the frequency domain.
As an embodiment, any one of the plurality of subchannels included in the frequency domain by the second resource pool includes a plurality of physical resource blocks in the second resource pool.
As an embodiment, the second resource pool comprises a plurality of time-frequency resource blocks of the second type.
As an embodiment, any one of the plurality of second-type time-frequency resource blocks included in the second resource pool includes a plurality of second-type multicarrier symbols in a time domain.
As an embodiment, the time domain resource occupied by any one of the plurality of second class time-frequency resource blocks included in the second resource pool in the time domain belongs to one time slot in the second resource pool.
As an embodiment, any one of the plurality of second-type time-frequency resource blocks included in the second resource pool includes a plurality of second-type subcarriers in a frequency domain.
As an embodiment, any one of the plurality of second-type time-frequency resource blocks included in the second resource pool includes at least one physical resource block in the second resource pool in the frequency domain.
As an embodiment, the frequency domain resource occupied by any one of the plurality of second class time-frequency resource blocks included in the second resource pool in the frequency domain belongs to one sub-channel in the second resource pool.
As an embodiment, any one of the plurality of second-type time-frequency resource blocks included in the second resource pool includes at least one subchannel in the second resource pool in the frequency domain.
As an embodiment, at least one of the plurality of second class time-frequency resource blocks comprised by the second resource pool comprises a PSCCH.
As an embodiment, at least one of the plurality of second class time-frequency resource blocks included in the second resource pool includes a PSSCH.
As an embodiment, at least one of the plurality of second class time-frequency resource blocks comprised by the second resource pool comprises a PSFCH.
As an embodiment, at least one of the plurality of second class time-frequency resource blocks included in the second resource pool includes a PSCCH and a PSSCH.
As an embodiment, at least one of 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 one of the plurality of second type time-frequency resource blocks included in the second resource pool.
As an embodiment, the second PSSCH is one of 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 multicarrier symbol included in the time domain by the second PSSCH is the second type of multicarrier symbol in the second resource pool.
As an embodiment, any subcarrier of the plurality of subcarriers included in the frequency domain by the second PSSCH is the second type 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 is orthogonal to the first resource pool in the frequency domain.
As an embodiment, the second resource pool is orthogonal to the first resource pool in the time domain.
As an embodiment, the second resource pool overlaps the first resource pool.
As an embodiment, the second resource pool overlaps with the first resource pool in a time domain.
As an embodiment, the second resource pool overlaps with the first resource pool in a frequency domain.
As an embodiment, the second resource pool is orthogonal to the first resource pool in a frequency domain, and the second resource pool overlaps with the first resource pool in a time domain.
As an embodiment, the second resource pool is orthogonal to the first resource pool in a time domain, and the second resource pool overlaps with the first resource pool in a frequency domain.
As an embodiment, the second resource pool and the first resource pool are FDM.
As one embodiment, the second resource pool is TDM with the first resource pool.
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 a first carrier frequency and the second resource pool belongs to the second carrier frequency.
As a sub-embodiment of the above embodiment, the first carrier frequency is different from a center frequency point of the second carrier frequency.
As a sub-embodiment of the above embodiment, the first carrier frequency is different from the bandwidth of the second carrier frequency.
As an embodiment, the second resource pool and the first resource pool belong to the same bandwidth part (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 a 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 is 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 bandwidth of the first BWP is different from the bandwidth of the second BWP.
As an embodiment, the second resource pool and the first resource pool are two different resource pools in the same carrier frequency, respectively.
As an embodiment, the second resource pool and the first resource pool are respectively two different resource pools in the same bandwidth component.
As an embodiment, the length of any second type of multi-carrier symbol in the second resource pool is equal to the length of any first type of multi-carrier symbol in the first resource pool.
As an embodiment, the length of any second type of multi-carrier symbol in the second resource pool is different from the length of any first type of multi-carrier symbol in the first resource pool.
As an embodiment, the length of any second type of multi-carrier symbol in the second resource pool is greater than the length of any first type of multi-carrier symbol in the first resource pool.
As an embodiment, the length of any second type of multi-carrier symbol in the second resource pool is smaller than the length of any first type of multi-carrier symbol in the first resource pool.
As an embodiment, the length of any second type of multi-carrier symbol in the second resource pool is a multiple of the length of any first type of multi-carrier symbol in the first resource pool.
As an embodiment, the length of any first type of multi-carrier symbol in the first resource pool is a multiple of the length of any second type of 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 slot in the second resource pool is a multiple of the length of any slot in the first resource pool.
As an embodiment, the length of any slot in the first resource pool is a multiple of the length of any slot in the second resource pool.
As an embodiment, the interval of any second type of subcarriers in the second resource pool is equal to the interval of any first type of subcarriers in the first resource pool.
As an embodiment, the interval of any second type of subcarriers in the second resource pool is different from the interval of any first type of subcarriers in the first resource pool.
As an embodiment, the interval of any second type of subcarriers in the second resource pool is larger than the interval of any first type of subcarriers in the first resource pool.
As an embodiment, the interval of any second type of subcarriers in the second resource pool is smaller than the interval of any first type of subcarriers in the first resource pool.
As an embodiment, the interval of any second type of subcarriers in the second resource pool is a multiple of the interval of any first type of subcarriers in the first resource pool.
As an embodiment, the interval of any first type of subcarriers in the first resource pool is a multiple of the interval of any second type of subcarriers in the second resource pool.
As an embodiment, the frequency domain resource occupied by any physical resource block in the second resource pool is equal to the frequency domain resource occupied by any physical resource block in the first resource pool.
As an embodiment, the frequency domain resource occupied by any physical resource block in the second resource pool is different from the frequency domain resource occupied by any physical resource block in the first resource pool.
As an embodiment, the frequency domain resource occupied by any physical resource block in the second resource pool is larger than the frequency domain resource 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 resource occupied by any sub-channel in the second resource pool is equal to the frequency domain resource 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 different from 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 larger 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 subchannel in the second resource pool is equal to the number of physical resource blocks in the first resource pool included in any subchannel in the first resource pool.
As an embodiment, the number of physical resource blocks in the second resource pool included in any subchannel in the second resource pool is different from the number of physical resource blocks in the first resource pool included in any subchannel in the first resource pool.
As an embodiment, the number of physical resource blocks in the second resource pool included in any subchannel in the second resource pool is greater than the number of physical resource blocks in the first resource pool included in any subchannel in the first resource pool.
As an embodiment, the number of physical resource blocks in the second resource pool included in any subchannel in the second resource pool is smaller than the number of physical resource blocks in the first resource pool included in any subchannel in the first resource pool.
Example 8
Embodiment 8 illustrates a schematic diagram of a relationship between a first PSCCH, a first PSSCH, and a second PSSCH, as shown in fig. 8, according to an embodiment of the present application. The dashed oval represents the first spatial filter in this application and the solid oval 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 second PSSCH; the first PSSCH is associated with a first spatial filter, and the second PSSCH is associated with a second spatial filter, the second spatial filter being different from the first spatial filter.
As one 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) 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 association of the second PSSCH with the first PSSCH by two different spatial filters means that the spatial transmission parameters experienced on the second PSSCH are different from the spatial transmission parameters experienced on the first PSSCH.
As an embodiment, the association of the second PSSCH with the first PSSCH by two different spatial filters means that the spatial beam used by the first data on the second PSSCH is different from the spatial beam used by the first data on the first PSSCH.
As an embodiment, the association of the second PSSCH with the first PSSCH with two different spatial filters means that the QCL relationship used by the first data on the second PSSCH is different from the QCL relationship used by the first data on the first PSSCH.
As an embodiment, the association of the second PSSCH with the first PSSCH by two different spatial filters means that the reference signal used by the first data on the second PSSCH is different from the reference signal used by the first data on the first PSSCH.
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 one embodiment, the spatial filter associated with the second PSSCH is the second spatial filter.
As one embodiment, determining the spatial filter associated with the second PSSCH refers to determining the second spatial filter.
As one embodiment, determining the spatial filter associated with the second PSSCH refers to determining the spatial transmission parameters of the second spatial filter.
As one embodiment, determining the spatial filter associated with the second PSSCH refers to determining the spatial beam generated by the second spatial filter.
As one embodiment, determining the spatial filter associated with the second PSSCH refers to determining the QCL relationship of the second spatial filter.
As one embodiment, determining the spatial filter associated with the second PSSCH refers to determining the reference signal employed by the second spatial filter.
Example 9
Embodiment 9 illustrates a schematic diagram of the relationship between the first level control information, the second level control information, and the first data according to one embodiment of the present application, as shown in fig. 9. In fig. 9, the diagonal filled rectangles represent the first level control information in the present application, the horizontal filled rectangles represent the second level control information in the present application, and the dashed rectangles represent the first data in the present application.
In embodiment 9, the first level control information includes a first field that is used to determine that the format of the second level control information is a first information format that includes a second field that is used to determine whether the first data is carried on the first PSSCH.
As an embodiment, the second level control information comprises the second field.
As one embodiment, the second-level control information includes a plurality of domains, and the second domain is one of the plurality of domains included in the second-level control information.
As an embodiment, the second level control information comprises the second field, the second field comprising at least one information bit.
As an embodiment, the at least one information bit included in the second field means that the second field is mapped to at least one information bit 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 of the plurality of information bits included in the second-level control information.
As an embodiment, the second-level control information comprises a plurality of information bits, and the second field is mapped to at least one information bit of the plurality of information bits included in the second-level control information.
As an embodiment, the second level control information comprises a plurality of information bits, meaning that the plurality of information bits are used to generate the second level control information.
As an embodiment, the plurality of fields included in the second-level control information are mapped to at least one information bit of the plurality of information bits included in the second-level control information, respectively.
As an embodiment, the format of the second level control information is the first information format, the first information format includes a plurality of fields, and the second field is one of the plurality of fields included in the first information format.
As an embodiment, the first information format includes a plurality of fields, the second-level control information includes a plurality of information bits, and the plurality of fields included in the first information format are mapped to at least one information bit of the plurality of information bits included in the second-level control information, respectively.
As an embodiment, the second field is one of the plurality of fields included in the first information format, and the second field is mapped to at least one information bit of the plurality of information bits included in the second-level control information.
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 field is used to indicate whether the first data is carried on the first resource pool.
As an embodiment, the second domain 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 comprised by the second field indicates 2 values, respectively.
As an embodiment, the candidates for the value of the second field include 0 and 1.
As an embodiment, 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 a value of the second domain.
As an embodiment, whether the first data is carried on the first PSSCH or the second PSSCH is related to a value of the second domain.
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, the first data being carried on the first PSSCH; alternatively, the value of the second field is 0, the first data not being carried on the first PSSCH; alternatively, 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, the first data is carried on the first PSSCH; alternatively, the value of the second field is 1, the first data not being carried on the first PSSCH; alternatively, 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 domain 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, the first data being carried on the first PSSCH; alternatively, 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, the first data is carried on the first PSSCH; alternatively, the value of the second field is 1 and the first data is carried on the second PSSCH.
Example 10
Embodiment 10 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 10. In embodiment 10, the first node apparatus processing device 1000 is mainly composed of a first transmitter 1001 and a second transmitter 1002.
As one example, the first transmitter 1001 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.
As one example, the second transmitter 1002 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.
In embodiment 10, the first transmitter 1001 transmits first stage control information on a first PSCCH; the second transmitter 1002 transmits at least the former of the second-level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, 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, 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 one of the SCI format 2-a, the SCI format 2-B or the SCI format 2-C, the first data is carried on the first PSSCH, or the format of the second level control information is the first information format, the first data is not carried on the first PSSCH.
As one embodiment, the second transmitter 1002 transmits the first data on a second PSSCH; the format of the second-level control information is the first information format, only the former of the second-level control information and the first data being carried on the first PSSCH; the second PSSCH is different from the first PSSCH.
As an embodiment, the second PSSCH and the first PSSCH respectively belong to two different resource pools.
As an embodiment, the second PSSCH is associated with two different spatial filters, respectively, with the first 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 PSSCH.
As one embodiment, the format of the second level control information is the first information format, the second level control information being used to determine the spatial filter associated with the second PSSCH.
As an embodiment, the first level control information is a 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.
As an embodiment, the first information format is SCI format 2-D.
As an embodiment, the first information format includes a second field that is used to determine whether the first data is carried on the first PSSCH.
As an embodiment, the first node 1000 is a 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 block diagram of a processing device for use in a second node, as shown in fig. 11. In embodiment 11, the second node apparatus processing device 1100 is mainly composed of a first receiver 1101 and a second receiver 1102.
As an example, the first receiver 1101 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.
As one example, the second receiver 1102 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.
In embodiment 11, the first receiver 1101 receives first level control information on a first PSCCH; the second receiver 1102 receives at least the former of the second level control information and the first data on the first PSSCH; the first level control information is used to determine the first PSSCH; the first level control information comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, 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, 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 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 format of the second level control information 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 a second PSSCH; the format of the second-level control information is the first information format, only the former of the second-level control information and the first data being on the first PSSCH; the second PSSCH is different from the first PSSCH.
As an embodiment, the second PSSCH and the first PSSCH respectively belong to two different resource pools.
As an embodiment, the second PSSCH is associated with two different spatial filters, respectively, with the first 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 PSSCH.
As one embodiment, the format of the second level control information is the first information format, the second level control information being used to determine the spatial filter associated with the second PSSCH.
As an embodiment, the first level control information is a 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.
As an embodiment, the first information format is SCI format 2-D.
As one embodiment, the first information format includes a second field that is used to determine whether the first data is transmitted on the first PSSCH.
As an embodiment, the second node 1100 is a 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 will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. The first node device in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane and other wireless communication devices. The second node device in the application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane and other wireless communication devices. The user equipment or UE or terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power device, an eMTC device, an NB-IoT device, an on-board communication device, an aircraft, an airplane, an unmanned aerial vehicle, a remote control airplane, and other wireless communication devices. The base station device or the base station or the network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (13)

1. A first node for wireless communication, comprising:
a first transmitter transmitting first level control information on a first PSCCH;
a second transmitter transmitting 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
2. The first node of claim 1, wherein whether the first data is carried on the first PSSCH relates to the format of the second level control information; 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, the first data is carried on the first PSSCH, or the format of the second level control information is the first information format, the first data is not carried on the first PSSCH.
3. The first node according to claim 1 or 2, comprising:
the second transmitter transmitting the first data on a second PSSCH;
wherein the format of the second-level control information is the first information format, only the former of the second-level control information and the first data being carried on the first PSSCH; the second PSSCH is different from the first PSSCH.
4. A first node according to claim 3, characterized in that the second PSSCH and the first PSSCH belong to two different resource pools, respectively.
5. A first node according to claim 3, characterized in that the second PSSCH is associated with two different Spatial Filters (Spatial Filters) respectively to the first PSSCH.
6. The first node according to any of claims 3 to 5, characterized in that the format of the second level control information is the first information format, the second level control information being used for determining the second PSSCH.
7. The first node according to any of claims 3 to 5, characterized in that the format of the second level control information is the first information format, the second level control information being used for determining the second PSSCH associated spatial filter.
8. The first node according to any of the claims 1 to 5, characterized in that the first level control information is a first level SCI (1 st -stage SCI), the format of the first level control information being SCIformat 1-a, or the format of the first level control information being SCI format 1-B.
9. The first node according to any of claims 1-5, characterized in that the first information format is SCI format 2-D.
10. The first node of claim 1 or 2, wherein the first information format comprises a second field that is used to determine whether the first data is carried on the first PSSCH.
11. A second node for wireless communication, comprising:
a first receiver that receives first stage control information on a first PSCCH;
a second receiver 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
12. A method in a first node for wireless communication, comprising:
transmitting first level control information on a first PSCCH;
transmitting at least the first 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
13. A method in a second node for wireless communication, comprising
Receiving first stage control information on a first PSCCH;
receiving at least the first 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 comprises a first field comprising two information bits, the first field being used to determine a format of the second level control information, 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; the SCI format 2-a includes a propagation type indication, the SCI format 2-B includes a region identification, and the SCI format 2-C includes a provide/request indication; the first information format includes information related to decoding the first data.
CN202210916297.0A 2022-08-01 2022-08-01 Method and apparatus in a node for wireless communication Pending CN117544284A (en)

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