CN113079569A - Method and device used in wireless communication node - Google Patents

Method and device used in wireless communication node Download PDF

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Publication number
CN113079569A
CN113079569A CN202010004813.3A CN202010004813A CN113079569A CN 113079569 A CN113079569 A CN 113079569A CN 202010004813 A CN202010004813 A CN 202010004813A CN 113079569 A CN113079569 A CN 113079569A
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time
frequency resources
signaling
frequency
information
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CN113079569B (en
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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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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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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. A first node receives first information and first signaling, wherein the first information is used for determining X alternative time frequency resource sets and first type transmission, and X is a positive integer larger than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; sending a first signal, wherein the first signal occupies the target time frequency resource set; transmitting second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources. The method and the device release the time-frequency resources configured on the sidelink in time, and improve the resource utilization rate.

Description

Method and device used in wireless communication node
Technical Field
The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus in sidestream wireless communication.
Background
In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN. The 3GPP has also started to initiate standards development and research work under the NR framework for the rapidly evolving Vehicle-to-evolution (V2X) service. The 3GPP has completed the work of making the requirements for the 5G V2X service and has written the standard TS 22.886. The 3GPP identified and defined a 4 large Use Case Group (Use Case Group) for the 5G V2X service, including: automatic queuing Driving (Vehicles riding), Extended sensing (Extended Sensors), semi/full automatic Driving (Advanced Driving) and Remote Driving (Remote Driving). The technical research work Item (SI, Study Item) of NR V2X was passed on 3GPP RAN #80 at the full meeting. The decision to standardize NR V2X Start WI (work item) was made on 3GPP RAN #83 subcontract.
Disclosure of Invention
Compared with the existing LTE V2X system, the NR V2X has a remarkable characteristic that the system can simultaneously support periodic and aperiodic services and simultaneously support unicast and multicast transmission. Introduction of a configuration granted (configured grant) transmission of the sidelink in a resource allocation mode of NR mode-1, NR scheduling mode, is agreed on 3GPP RAN1#96bis conferences. And configuring two modes of granted transmission type-1 and type-2, and configuring the period of transmission resources by the base station equipment through high-layer information, wherein the base station equipment further schedules time-frequency resources and activates the transmission mode of the granted configuration in the type-2 mode.
The present application discloses a solution to the design problem of configuration grant transmission of the sidelink in NR V2X. It should be noted that, in the description of the present application, only the NR V2X scenario is taken as a typical application scenario or example; the application is also applicable to other scenarios (such as relay network, D2D network, cellular network, scenario supporting half-duplex user equipment) besides NR V2X facing similar problems, and can also achieve technical effects similar to those in NR V2X scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to the NR V2X scenario and the sidelink transmission scenario) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features of embodiments in a first node device of the present application may apply to a second node device and vice versa. In particular, the terms (telematics), nouns, functions, variables in the present application may be explained (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.
The application discloses a first node method used for wireless communication, which is characterized by comprising the following steps:
receiving first information and first signaling, wherein the first information is used for determining X alternative time frequency resource sets and first type transmission, and X is a positive integer larger than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission;
sending a first signal, wherein the first signal occupies the target time frequency resource set;
transmitting second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources;
wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
As an embodiment, when there is no data transmission on the sidelink, the first node timely indicates, by sending the second information, that the second node uses the reserved radio resource configured by the configuration grant and activated by the first signaling for transmission other than the first type of transmission, so that the utilization rate of the radio resource can be effectively improved, and the waste of the radio resource is avoided.
According to one aspect of the present application, the above method is characterized by further comprising:
receiving second signaling used to determine whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission.
As an embodiment, after the first node sends the second information, the second node sends the second signaling, which indicates that the first node may release the first time-frequency resource by itself after receiving the second signaling, so that the first node may further determine a time at which the first time-frequency resource is released by itself, improve a utilization rate of radio resources, and reduce implementation complexity of a user equipment.
According to one aspect of the present application, the above method is characterized by further comprising:
the receiving ending time of the second signaling is a first time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold.
According to one aspect of the present application, the above method is characterized by further comprising:
the first time-frequency resource set is the earliest alternative time-frequency resource set which is later than the first time moment in the starting time of the time domain and has the time interval length with the first time moment not less than the first threshold value in the X alternative time-frequency resource sets.
According to one aspect of the present application, the above method is characterized by further comprising:
and the first node equipment automatically abandons the first type of transmission in the first time-frequency resource set and the alternative time-frequency resource set which is later than the first time-frequency resource set in the X alternative time-frequency resource sets at the starting time of the time domain.
According to one aspect of the present application, the above method is characterized by further comprising:
the transmission ending time of the second information is a second time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set, and the time interval length between the second time and the starting time of the time domain resources occupied by the first time-frequency resource set is not less than a second threshold value; the second threshold is predefined or the second threshold is configurable.
As an embodiment, after the first node sends the second information, the time for releasing the first time-frequency resource by itself is determined, so that signaling can be further saved, the utilization rate of radio resources is improved, and the implementation complexity of the user equipment is reduced.
According to one aspect of the present application, the above method is characterized by further comprising:
sending a third signaling; the third signaling is used for indicating the time-frequency resource occupied by the first signal and the modulation and coding mode adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
According to one aspect of the present application, the above method is characterized by further comprising:
the X alternative time frequency resource sets are periodically distributed in a time domain, and the first information is used for determining the period length of the distribution period of the X alternative time frequency resource sets in the time domain and the time domain positions of the X alternative time frequency resource sets in the distribution period.
The application discloses a second node method used for wireless communication, which is characterized by comprising the following steps:
sending first information and first signaling, wherein the first information is used for indicating X alternative time frequency resource sets and first type transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission;
receiving second information used for determining that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
According to one aspect of the present application, the above method is characterized by further comprising:
transmitting second signaling, the second signaling being used to indicate whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission.
According to one aspect of the present application, the above method is characterized by further comprising:
the receiving ending time of the second signaling is a first time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold.
According to one aspect of the present application, the above method is characterized by further comprising:
the first time-frequency resource set is the earliest alternative time-frequency resource set which is later than the first time moment in the starting time of the time domain and has the time interval length with the first time moment not less than the first threshold value in the X alternative time-frequency resource sets.
According to one aspect of the present application, the above method is characterized by further comprising:
and the second node equipment performs transmission except the first type of transmission in the first time-frequency resource set and an alternative time-frequency resource set which is later than the first time-frequency resource set in the X alternative time-frequency resource sets at the starting time of the time domain.
According to one aspect of the present application, the above method is characterized by further comprising:
the transmission ending time of the second information is a second time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set, and the time interval length between the second time and the starting time of the time domain resources occupied by the first time-frequency resource set is not less than a second threshold value; the second threshold is predefined or the second threshold is configurable.
According to one aspect of the present application, the above method is characterized by further comprising:
the X alternative time frequency resource sets are periodically distributed in a time domain, and the first information is used for determining the period length of the distribution period of the X alternative time frequency resource sets in the time domain and the time domain positions of the X alternative time frequency resource sets in the distribution period.
The application discloses a first node device used for wireless communication, characterized by comprising:
a first receiver, configured to receive first information and first signaling, where the first information is used to determine X alternative sets of time-frequency resources and a first type of transmission, where X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission;
a first transmitter, configured to transmit a first signal, where the first signal occupies the target time-frequency resource set;
a second transmitter for transmitting second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources;
wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
The present application discloses a second node device used for wireless communication, comprising:
a third transmitter, configured to send first information and a first signaling, where the first information is used to indicate X candidate sets of time-frequency resources and a first type of transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission;
a second receiver configured to receive second information used to determine that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
As an example, the method in the present application has the following advantages:
by adopting the method in the application, in the configuration granted sidelink transmission mode, when no further data transmission is performed, the user equipment sends the information requesting to release the time-frequency resource to the base station or the scheduling user equipment, so that the base station or the scheduling user equipment can release the sidelink time-frequency resource in time, thereby avoiding resource waste and improving the resource utilization rate.
The method of the present application, considering that in an implementation manner, the user equipment releases the time-frequency resource after receiving the signaling issued by the base station or the scheduling user, may further determine a time when the first node releases the first time-frequency resource by itself, improve the utilization rate of the wireless resource, and reduce the implementation complexity of the user equipment.
The method of the present application considers that, in an implementation manner, after the user equipment sends the information requesting release of the time-frequency resource to the base station or the scheduling user equipment, the time for releasing the first time-frequency resource is determined by itself, which can further reduce signaling overhead, improve the utilization rate of the radio resource, and reduce the implementation complexity of the user equipment.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of first information, first signaling, first signals and second information according to an embodiment of the application;
FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;
figure 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;
FIG. 4 shows a schematic diagram of a first node device and a second node device according to an embodiment of the present application;
fig. 5 shows a schematic diagram of a first node device and another user device according to an embodiment of the application;
FIG. 6 shows a wireless signal transmission flow diagram according to one embodiment of the present application;
FIG. 7 shows another wireless signal transmission flow diagram according to an embodiment of the present application;
fig. 8 is a diagram illustrating a relationship between a first time, a first threshold, a target time-frequency resource set, and a first time-frequency resource set according to an embodiment of the present application;
fig. 9 is a diagram illustrating a relationship between a second time, a second threshold, a target time-frequency resource set, and a first time-frequency resource set according to an embodiment of the application;
FIG. 10 shows a schematic diagram of one of X alternative sets of time-frequency resources according to an embodiment of the present application;
fig. 11 is a diagram illustrating an information format adopted by MAC layer information carried by second information according to an embodiment of the present application;
FIG. 12 shows a block diagram of a processing arrangement in a first node device according to an embodiment of the present application;
fig. 13 is a block diagram illustrating a structure of a processing apparatus in a second node device according to an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of first information, first signaling, first signals and second information according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step, and it is particularly emphasized that the sequence of the blocks in the figure does not represent a chronological relationship between the represented steps.
In embodiment 1, a first node device in this application receives, in step 101, first information and a first signaling, where the first information is used to determine X alternative sets of time-frequency resources and a first type of transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; sending a first signal in step 102, the first signal occupying the target set of time-frequency resources; transmitting second information in step 103, the second information being used to indicate that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
As an embodiment, the first information is higher layer information.
As an embodiment, the first information is transmitted through higher layer signaling.
As an embodiment, the first information is transmitted through physical layer signaling.
As an embodiment, the first information includes all or part of a higher layer signaling.
As an embodiment, the first information includes all or part of a physical layer signaling.
As an embodiment, the first information is transmitted over an air interface.
As an embodiment, the first information is transmitted over a wireless interface.
As an embodiment, the first information is sent from the second node device to the first node device in this application.
As an embodiment, the first information is transmitted through DL (Downlink).
As an embodiment, the first information is transmitted through SL (Sidelink).
As an embodiment, the first information is transmitted through a Uu port.
As an example, the first information is transmitted through a PC5 interface.
As an embodiment, the first information is transmitted inside the first node device in the present application.
As an embodiment, the first information is transferred from a higher layer of the first node apparatus to a physical layer of the first node apparatus in the present application.
As an embodiment, the first information is Configured (Configured).
As an embodiment, the first information is Pre-configured (Pre-configured).
As an embodiment, the first Information includes all or part of an IE (Information Element) in a Radio Resource Control (RRC) signaling.
As an embodiment, the first Information includes all or part of a Field (Field) in an IE (Information Element) in an RRC (Radio Resource Control) signaling.
As an embodiment, the first information is transmitted through a DL-SCH (Downlink Shared Channel).
As an embodiment, the first information is transmitted through a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the first information is transmitted through a PDCCH (Physical Downlink Control Channel).
As an embodiment, the first information includes a Field (Field) of dci (downlink Control information) signaling.
As an embodiment, the first information is transmitted through a SL-SCH (Sidelink Shared Channel).
As an embodiment, the first information is transmitted through a psch (Physical Sidelink Shared Channel).
As an embodiment, the first information is transmitted through a PSCCH (Physical Sidelink Control Channel).
As an embodiment, the first information includes a Field (Field) of all or part of sci (sidelink Control information) signaling.
As one embodiment, the first information is broadcast.
As one embodiment, the first information is unicast.
As one embodiment, the first information is Cell Specific.
As an embodiment, the first information is user equipment-specific (UE-specific).
As an embodiment, the first information is user equipment group-specific (UE group-specific).
As an embodiment, the first information is carried by the first signaling in this application.
As an embodiment, the first information is carried by signaling other than the first signaling in this application.
As an embodiment, the first information includes a Field (Field) in the first signaling in this application.
As an embodiment, the above sentence "the first information is used to determine X sets of alternative time-frequency resources" includes the following meanings: the first information is used by the first node device in this application to determine X sets of alternative time-frequency resources.
As an embodiment, the above sentence "the first information is used to determine X sets of alternative time-frequency resources" includes the following meanings: the first information is used to directly indicate X sets of alternative time-frequency resources.
As an embodiment, the above sentence "the first information is used to determine X sets of alternative time-frequency resources" includes the following meanings: the first information is used to indirectly indicate X sets of alternative time-frequency resources.
As an embodiment, the above sentence "the first information is used to determine X sets of alternative time-frequency resources" includes the following meanings: the first information is used to explicitly indicate X sets of alternative time-frequency resources.
As an embodiment, the above sentence "the first information is used to determine X sets of alternative time-frequency resources" includes the following meanings: the first information is used to implicitly indicate a set of X candidate target time-frequency resources.
As an embodiment, the X alternative sets of time-frequency resources may include only X sets of time-domain resources;
as an embodiment, the X alternative sets of time-frequency resources may include X sets of time-domain resources and X sets of frequency-domain resources;
as an embodiment, the frequency domain resources of the X sets of alternative time frequency resources belong to a bwp (bandwidth part) of an sidelink.
As an embodiment, the frequency domain resources of the X sets of alternative time frequency resources belong to a Resource Pool (Resource Pool) of sidelink.
As an embodiment, the frequency-domain resources of the X sets of alternative time-frequency resources may also belong to BWP of the uplink.
As an embodiment, the X sets of alternative time-frequency resources are Configured by one configuration Grant (Configured Grant).
As an embodiment, one configuration Grant (Configured Grant) corresponding to the X candidate time-frequency resource sets has one corresponding configuration Grant index.
As an embodiment, the X alternative sets of time-frequency resources are reserved for psch (Physical Sidelink Shared Channel) transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for sidelink data transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for SCI (sidelink control information) transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for sidelink CSI (channel state information) transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for PUCCH (Physical Uplink Control Channel) transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for PSFCH (Physical Sidelink Feedback Channel) transmission.
As an embodiment, the X alternative sets of time-frequency resources are reserved for HARQ feedback of the sidelink data received by the first node for further feedback transmission.
As an embodiment, the X sets of alternative time-frequency resources are periodically distributed in the time domain.
As an embodiment, the X sets of alternative time-frequency resources may comprise the same frequency-domain resources in the frequency domain.
As an embodiment, the X sets of alternative time-frequency resources may comprise frequency-domain resources with a preconfigured frequency-domain resource interval in the frequency domain.
As an embodiment, the X sets of alternative time-frequency resources may comprise frequency-domain resources in the frequency domain with a configurable frequency-domain resource interval.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain consecutive OFDM symbols in the time domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain consecutive slots (slots) in the time domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain discrete OFDM symbols greater than 1 in the time domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain discrete time slots greater than 1 in the time domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of subchannels (subchannels) in the frequency domain.
As an embodiment, one time-frequency Resource set of the X alternative time-frequency Resource sets includes a positive integer number of PRBs (Physical Resource blocks) in a frequency domain.
As an embodiment, one time-frequency Resource set of the X alternative time-frequency Resource sets comprises a positive integer number of REs (Resource elements) in the frequency domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises consecutive frequency-domain resources in the frequency domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises discrete frequency-domain resources in the frequency domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises frequency-hopped frequency-domain resources in the frequency domain.
As an embodiment, the first signaling is a baseband signal.
As an embodiment, the first signaling is a radio frequency signal.
As one embodiment, the first signaling is carried by a Baseband (Baseband) signal.
As an embodiment, the first signaling is carried by a Radio Frequency (RF) signal.
As an embodiment, the first signaling is transmitted over an air interface.
As an embodiment, the first signaling is transmitted over a wireless interface.
As an embodiment, the first signaling is transmitted through a PC5 interface.
As an embodiment, the first signaling is transmitted through a Uu interface.
As an embodiment, the first signaling is transmitted over SL.
As an embodiment, the first signaling is transmitted through DL.
As an embodiment, the first signaling is MAC (Media Access Control) layer signaling.
As an embodiment, the first signaling is physical layer signaling.
As an embodiment, the first signaling is dynamic signaling.
As an embodiment, the first signaling carries DCI (Downlink Control Information).
As an embodiment, the first signaling carries SCI (Sidelink Control Information).
As an embodiment, the first signaling carries a configuration grant index.
As an embodiment, the first signaling carries two configuration grant indexes.
As an embodiment, the first signaling is a PDCCH (Physical Downlink Control Channel).
As an embodiment, the first signaling is PSCCH (Physical Sidelink Control Channel).
As an embodiment, the first signaling is a PDSCH (Physical Downlink Control Channel).
As an embodiment, the first signaling is a psch (Physical Sidelink Control Channel).
As an embodiment, the first signaling is transmitted through a PSSCH Piggyback (Piggyback).
As an embodiment, the first signaling is user-Specific (UE-Specific).
As an embodiment, the first signaling is user equipment Group-Specific (UE Group-Specific).
As an embodiment, the first signaling is a PDCCH transmission scrambled by SL-SPS-V-RNTI (Sidelink-Semi-Persistent-Scheduling-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the second signaling is a PDCCH transmission scrambled by SL-CS-V-RNTI (Sidelink-Configured-Scheduled-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the first signaling is a PDCCH scrambled by SL-V-RNTI (Sidelink-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the first signaling is transmitted via a PSCCH scrambled by an L1 ID (Layer-1Identifier) of the first node device.
As an embodiment, the target time-frequency resource set is one of the X alternative time-frequency resource sets.
As an embodiment, the set of time-frequency resources outside the target set of time-frequency resources may be one set of time-frequency resources outside the X alternative sets of time-frequency resources.
As an embodiment, the target set of time-frequency resources is used by the first node device for transmitting the first signal.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used by the first node device to determine the time-frequency resource occupied by the first signal.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is also used to determine a Modulation Coding Scheme (MCS) used by the first signal.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is also used to determine a HARQ (Hybrid Automatic Repeat Request) Process (Process) to which the first signal belongs.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is also used to determine feedback time-frequency resources of a HARQ process to which the first signal belongs.
As an embodiment, the frequency-domain resource of the feedback time-frequency resource of the HARQ process to which the first signal belongs to BWP of the sidelink.
As an embodiment, a frequency domain resource of a feedback time-frequency resource of the HARQ process to which the first signal belongs to a resource pool of a sidelink.
As an embodiment, the frequency-domain resource of the feedback time-frequency resource of the HARQ process to which the first signal belongs to BWP of uplink.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to directly indicate the target set of time-frequency resources.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to indirectly indicate the target set of time-frequency resources.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to explicitly indicate the target set of time-frequency resources.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to implicitly indicate the target set of time-frequency resources.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to determine that the target set of time-frequency resources may be used for the first type of transmission.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to determine that the target set of time-frequency resources may not be used for the first type of transmission.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to directly indicate whether the target set of time-frequency resources can be used for the first type of transmission.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to indirectly indicate whether the target set of time-frequency resources can be used for the first type of transmission.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to explicitly indicate whether the target set of time-frequency resources can be used for the first type of transmission.
As an embodiment, the above sentence "the first signaling is used to determine whether the target set of time-frequency resources can be used for the first type transmission" includes the following meanings: the first signaling is used to implicitly indicate whether the target set of time-frequency resources can be used for the first type of transmission.
As an embodiment, the first type of transmission is a transmission of SL.
As an example, the first type of transmission is a transmission through a PC5 interface.
As an embodiment, the first type of transmission adopts transmission of a CG (Configuration Grant) Configuration (Configuration) of the SL.
As an example, the first Type transmission employs a second Type (Type-2) transmission of one CG configuration of SL.
As an embodiment, the transmission other than the first type of transmission may be an UL (Uplink) transmission.
As an embodiment, the transmission other than the first type of transmission may be a transmission over a Uu interface.
As an embodiment, the transmission other than the first type transmission is a transmission that does not belong to the same Configuration Grant (Configured Grant) Configuration (Configuration) using a Sidelink (Sidelink) as the first type transmission.
As an embodiment, the transmissions other than the first type of transmission are transmissions other than Configured Grant (Configured Grant) configurations using a Sidelink (Sidelink) to which the first type of transmission belongs.
As one embodiment, the first signal is transmitted over an air interface.
As an embodiment, the first signal is transmitted over a wireless interface.
As an example, the first signal is transmitted through a PC5 interface.
As an embodiment, the first signal is transmitted through SL (Sidelink).
As an embodiment, the set of time-frequency resources occupied by the first signal belongs to the target set of time-frequency resources.
As an embodiment, the frequency domain resource occupied by the first signal includes a positive integer number of sub-channels (Subchannel).
As an embodiment, the frequency domain Resource occupied by the first signal includes a positive integer number of PRBs (Physical Resource blocks).
As an embodiment, the frequency domain resources occupied by the first signal are continuous in the frequency domain.
As an embodiment, the frequency domain resources occupied by the first signal are discrete in the frequency domain.
As an embodiment, the first signal carries user data for a sidelink.
For one embodiment, the first signal carries the SCI of the sidelink.
As an embodiment, the first signal carries CSI of a sidelink.
As an embodiment, the first signal carries part or all of the Sidelink SFCI (Sidelink Feedback Control Information).
As one embodiment, the first Signal carries a sidelink RSRP (Reference Signal Received Power) report.
As one embodiment, the first Signal carries a sidelink RSRQ (Reference Signal Received Quality) report.
As one embodiment, the first Signal carries a sidelink L1-RSRP (Layer 1-Reference Signal Received Power) report.
As an embodiment, all or part of one TB Block (Transport Block) is used to generate the first signal.
As an embodiment, all or part of one TB block is used together with a reference signal to generate the first signal.
As an embodiment, all bits or a part of bits in a TB block are sequentially subjected to CRC Calculation (CRC Calculation), Channel Coding (Channel Coding), Rate matching (Rate matching), Scrambling (Scrambling), Modulation (Modulation), Layer Mapping (Layer Mapping), Antenna Port Mapping (Antenna Port Mapping), Mapping to Virtual Resource Blocks (Mapping to Virtual Resource Blocks), Mapping from Virtual Resource Blocks to Physical Resource Blocks (Mapping from Virtual Resource Blocks), OFDM Baseband Signal Generation (OFDM Baseband and Signal Generation), and Modulation and frequency conversion (Modulation and Up conversion) to obtain the first Signal.
As an embodiment, all bits or a part of bits in a payload (payload) of an SCI are sequentially subjected to CRC Calculation (CRC Calculation), Channel Coding (Channel Coding), Rate Matching (Rate Matching), Scrambling (Scrambling), Modulation (Modulation), Mapping to Physical Resources (Mapping to Physical Resources), OFDM Baseband Signal Generation (OFDM Baseband and Signal Generation), and Modulation and Up conversion (Modulation and Up conversion) to obtain the first Signal.
For one embodiment, the second information includes physical layer information.
For one embodiment, the second information includes MAC layer information.
For one embodiment, the second information includes higher layer information.
As an embodiment, the second Information includes part or all of UCI (Uplink Control Information).
For one embodiment, the second information includes one or more fields (fields) in the UCI.
In one embodiment, the second information is transmitted through a time-frequency resource configured periodically.
As an embodiment, the second information is transmitted through a PUCCH (Physical Uplink Control Channel).
As an embodiment, the second information is transmitted through a PUSCH (Physical Uplink Shared Channel).
As an embodiment, the second information is transmitted via PUSCH (Physical Uplink Shared Channel) Piggyback (Piggyback).
As an embodiment, the second information is transmitted through an UL-SCH (Uplink Shared Channel).
As an embodiment, the second Information includes part or all of SCI (Sidelink Control Information).
For one embodiment, the second information includes one or more fields (fields) in the SCI.
As an embodiment, the second information is transmitted through a PSCCH (Physical Sidelink Control Channel).
As an embodiment, the second information is transmitted through a psch (Physical Sidelink Shared Channel).
As an embodiment, the second information is transmitted via psch (Physical Sidelink Shared Channel) Piggyback (Piggyback).
As an embodiment, the second information is transmitted through a SL-SCH (Sidelink Shared Channel).
As an embodiment, the second information is carried by a baseband signal.
As an embodiment, the second information is carried by a radio frequency signal.
As an embodiment, the second information is transmitted over an air interface.
As an embodiment, the second information is transmitted over a wireless interface.
As an embodiment, the second information is transmitted through a Uu interface.
As an embodiment, the second information is transmitted through an Uplink (Uplink).
As an example, the second information is transmitted through a PC5 interface.
As an embodiment, the second information is transmitted through a Sidelink (Sidelink).
As an embodiment, the first node sends the second information after ending the first type of transmission.
As an embodiment, the first node sends the second information after detecting that there is no data of the first type transmission at a higher layer.
As an example, the above sentence "the second information is used to indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission" includes the following meanings: the second information is used to directly indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an example, the above sentence "the second information is used to indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission" includes the following meanings: the second information is used to indirectly indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an example, the above sentence "the second information is used to indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission" includes the following meanings: the second information is used to display information indicating that the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an example, the above sentence "the second information is used to indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission" includes the following meanings: the second information is used to implicitly indicate that the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an embodiment, the first set of time-frequency resources is one alternative set of time-frequency resources other than the target set of time-frequency resources from among the X alternative sets of time-frequency resources.
As an embodiment, the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an embodiment, the first set of time-frequency resources may not be used for the first type of transmission.
As an embodiment, the target recipient of the first signal is a UE (User Equipment).
As an embodiment, the intended recipient of the first signal is an RSU (Road Side Unit).
As one embodiment, the intended recipient of the first signal is an on-board unit.
As an embodiment, the intended recipient of the first signal is a handheld terminal.
For one embodiment, the target recipient of the first signal is Laptop.
As an embodiment, the target recipient of the first signal is a node device other than the second node device in the present application.
As an embodiment, the target recipient of the second information is a base station apparatus.
As one embodiment, the target recipient of the second information is a network device.
As an embodiment, the target recipient of the second information is a UE.
As an embodiment, the target recipient of the second information is an RSU.
As an embodiment, the target recipient of the second information is an on-board unit.
As an embodiment, the target recipient of the second information is a handheld terminal.
For one embodiment, the target recipient of the second information is a Laptop.
As an embodiment, the target recipient of the second information is the second node device in this application.
As an example, the above sentence "the target recipient of the first signal is a recipient other than the target recipient of the second information" includes the following meanings: the first signal and the second information are transmitted over different air interfaces.
As an example, the above sentence "the target recipient of the first signal is a recipient other than the target recipient of the second information" includes the following meanings: the first signal and the second information are transmitted over different links.
As an example, the above sentence "the target recipient of the first signal is a recipient other than the target recipient of the second information" includes the following meanings: the first signal is transmitted through a Uu interface, and the second information is transmitted through a PC5 interface.
As an example, the above sentence "the target recipient of the first signal is a recipient other than the target recipient of the second information" includes the following meanings: both the first signal and the second information are transmitted over a PC5 interface.
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 NR 5G, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The NR 5G or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 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 b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmit receive node), or some other suitable terminology, and in an NTN network, the gNB203 may be a satellite, an aircraft, or a terrestrial base station relayed through a satellite. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, a vehicular device, a vehicular communication unit, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW/UPF212, and the S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include an internet, an intranet, an IMS (IP Multimedia Subsystem), and a PS (Packet Switching) streaming service.
As an embodiment, the UE201 corresponds to the first node device in this application.
As an embodiment, the UE201 supports transmission in SL.
As an embodiment, the UE201 supports a PC5 interface.
As an embodiment, the UE201 supports car networking.
As an embodiment, the UE201 supports V2X service.
As an embodiment, the UE201 corresponds to the second node device in this application.
As an embodiment, the gNB203 corresponds to the second node device in this application.
As one example, the gNB203 supports internet of vehicles.
As an embodiment, the gNB203 supports V2X traffic.
Example 3
Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first node device (RSU in UE or V2X, car mounted device or car communications module) and the second node device (gNB, RSU in UE or V2X, car mounted device or car communications module), or the control plane 300 between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above PHY301, and is responsible for the link between the first and second node devices and the two UEs through PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for a first node device to a second node device. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second 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), the radio protocol architecture in the user plane 350 for the first node device and the second node device is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).
As an example, the wireless protocol architecture in fig. 3 is applicable to the first node device in the present application.
As an example, the wireless protocol architecture in fig. 3 is applicable to the second node device in the present application.
As an embodiment, the first information in this application is generated in the RRC 306.
As an embodiment, the first information in the present application is generated in the PHY301 or the PHY 351.
As an embodiment, the first signaling in this application is generated in the MAC302 or the MAC 352.
As an embodiment, the first signaling in the present application is generated in the PHY301 or the PHY 351.
As an embodiment, the first signal in this application is generated in the RRC 306.
As an embodiment, the first signal in this application is generated in the MAC302 or the MAC 352.
As an embodiment, the first signal in the present application is generated in the PHY301 or the PHY 351.
As an embodiment, the second information in this application is generated in the RRC 306.
As an embodiment, the second information in this application is generated in the MAC302 or the MAC 352.
As an embodiment, the second information in the present application is generated in the PHY301 or the PHY 351.
Example 4
Embodiment 4 shows a schematic diagram of a first node device and a second node device according to the present application, as shown in fig. 4.
Included in the first node device (450) may be a controller/processor 490, a receive processor 452, a transmit processor 455, a transmitter/receiver 456, a data source/memory 480, and a transmitter/receiver 456 including an antenna 460.
A controller/processor 440, a receive processor 412, a transmit processor 415, a transmitter/receiver 416, a memory 430, the transmitter/receiver 416 including an antenna 420 may be included in the second node device (400).
In the DL (Downlink), upper layer packets, such as the first information in the present application and higher layer information included in the first signaling (if the first signaling includes the higher layer information), are provided to the controller/processor 440. Controller/processor 440 performs the functions of layer L2 and above. In the DL, the controller/processor 440 provides packet header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first node device 450 based on various priority metrics. Controller/processor 440 is also responsible for HARQ operations, retransmission of lost packets, and signaling to first node device 450, such as first information and first signaling (if higher layer information is included in the first signaling) as described herein, all generated in controller/processor 440. Transmit processor 415 implements various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., where the generation of the physical layer signal for the first information and first signaling is done at transmit processor 415, the generated modulation symbols are divided into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and/or multi-carrier symbol, and then transmitted as a radio frequency signal by transmit processor 415 via transmitter 416 to antenna 420. On the receive side, each receiver 456 receives a radio frequency signal through its respective antenna 460, and each receiver 456 recovers baseband information modulated onto a radio frequency carrier and provides the baseband information to a receive processor 452. The receive processor 452 implements various signal receive processing functions of the L1 layer. The signal reception processing functions include, among other things, reception of the physical layer signals of the first information and first signaling in the present application, demodulation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)) over multicarrier symbols in a multicarrier symbol stream, followed by descrambling, decoding, and deinterleaving to recover data or control transmitted by the second node device 410 over a physical channel, followed by providing the data and control signals to the controller/processor 490. The controller/processor 490 is responsible for the L2 layer and above, and the controller/processor 490 interprets the first information and the first signaling (if the first signaling includes higher layer information) in this application. The controller/processor can be associated with a memory 480 that stores program codes and data. The data source/memory 480 may be referred to as a computer-readable medium.
In an Uplink (UL) transmission, data source/memory 480 is used to provide higher layer data to controller/processor 490. The data source/storage 480 represents all protocol layers above the L2 layer and the L2 layer. The controller/processor 490 implements the L2 layer protocol for the user plane and the control plane by providing header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the second node 410. The controller/processor 490 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second node 410. Such as the second information in this application, is generated in controller/processor 490. The transmit processor 455 implements various signal transmit processing functions for the L1 layer (i.e., the physical layer). The signal transmission processing functions include coding and interleaving to facilitate Forward Error Correction (FEC) at the UE450 and modulation of the baseband signal based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)), splitting the modulation symbols into parallel streams and mapping each stream to a respective multi-carrier subcarrier and/or multi-carrier symbol, which are then mapped by the transmit processor 455 to the antenna 460 via the transmitter 456 for transmission as a radio frequency signal. Receivers 416 receive radio frequency signals through their respective antennas 420, each receiver 416 recovers baseband information modulated onto a radio frequency carrier, and provides the baseband information to receive processor 412. The receive processor 412 performs various signal receive processing functions for the L1 layer (i.e., the physical layer) including obtaining a stream of multicarrier symbols, then demodulating the multicarrier symbols in the stream of multicarrier symbols based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK)), and then decoding and deinterleaving to recover the data and/or control signals originally transmitted by the first node apparatus 450 over the physical channel. The data and/or control signals are then provided to a controller/processor 440. The functionality at the L2 layer is implemented in the controller/processor 440 as part of the interpretation of the second information herein. The controller/processor 440 can be associated with a memory 430 that stores program codes and data. The memory 430 may be a computer-readable medium.
As an embodiment, the first node apparatus 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, for use with the at least one processor, the first node apparatus 450 at least: receiving first information and first signaling, wherein the first information is used for determining X alternative time frequency resource sets and first type transmission, and X is a positive integer larger than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; sending a first signal in step 102, the first signal occupying the target set of time-frequency resources; transmitting second information in step 103, the second information being used to indicate that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
As an embodiment, the first node apparatus 450 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving first information and first signaling, wherein the first information is used for determining X alternative time frequency resource sets and first type transmission, and X is a positive integer larger than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; sending a first signal in step 102, the first signal occupying the target set of time-frequency resources; transmitting second information in step 103, the second information being used to indicate that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
For one embodiment, the second node device 410 apparatus 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 node device 410 apparatus at least: sending first information and first signaling, wherein the first information is used for indicating X alternative time frequency resource sets and first type transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission; receiving second information used for determining that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
For one embodiment, the second node device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending first information and first signaling, wherein the first information is used for indicating X alternative time frequency resource sets and first type transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission; receiving second information used for determining that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
For one embodiment, the first node apparatus 450 is a User Equipment (UE).
For one embodiment, the first node apparatus 450 is a V2X-capable user equipment.
For one embodiment, the first node device 450 is a vehicle-mounted device.
As an example, the first node device 450 is a RSU (Road Side Unit) device.
For an embodiment, the second node device 410 is a base station device (gNB/eNB).
For one embodiment, the second node device 410 is a base station device supporting V2X.
For one embodiment, the second node device 410 is a User Equipment (UE).
For one embodiment, the second node device 410 is a V2X-capable user device.
For one embodiment, the second node device 410 is a vehicle-mounted device.
As an example, the second node device 410 is an RSU (Road Side Unit) device.
For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first information herein.
For one embodiment, receiver 456 (including antenna 460), receive processor 452, and controller/processor 490 are used to receive the first signaling.
For one embodiment, transmitter 416 (including antenna 420), transmit processor 415, and controller/processor 440 are used to transmit the first information in this application.
For one embodiment, the transmitter 416 (including the antenna 420), the transmit processor 415, and the controller/processor 440 are configured to transmit the first signaling in this application.
For one embodiment, a transmitter 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 are used to transmit the second information in this application.
For one embodiment, receiver 416 (including antenna 420), receive processor 412, and controller/processor 440 are used to receive the second information described herein.
Example 5
Embodiment 5 shows a schematic diagram of a first node device and another user device according to the present application, as shown in fig. 5.
Included in the first node device (550) are a controller/processor 590, a memory 580, a receive processor 552, a transmitter/receiver 556, a transmit processor 555, and the transmitter/receiver 556 including an antenna 560. The composition in the further user equipment (500) is the same as in the first node device 550.
In Sidelink (Sidelink) transmission, upper layer packets, including the first signal in this application, are provided to a controller/processor 590, and controller/processor 590 performs the functions of layer L2. In sidelink transmission, the controller/processor 590 provides packet header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels. Controller/processor 590 is also responsible for HARQ operations (if supported), retransmission, and signaling to user equipment 500. Transmit processor 555 performs various signal processing functions for the L1 layer (i.e., the physical layer), including encoding, interleaving, scrambling, modulation, power control/allocation, precoding, and physical layer control signaling generation, etc., where the generation of the first signal is done at transmit processor 555, the modulation symbols are split into parallel streams and each stream is mapped to a corresponding multi-carrier subcarrier and/or multi-carrier symbol and then transmitted by transmit processor 555 as a radio frequency signal via transmitter 556 to antenna 560. On the receiving end, each receiver 516 receives an rf signal through its respective antenna 520, each receiver 516 recovers baseband information modulated onto an rf carrier, and provides the baseband information to the receive processor 512. The receive processor 512 performs various signal receive processing functions of the L1 layer. The signal reception processing functions include, among others in this application, reception of physical layer signals of the first signal, demodulation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK)) over multicarrier symbols in a multicarrier symbol stream, followed by descrambling, decoding, and deinterleaving to recover data or control transmitted by the first communication node apparatus 550 over a physical channel, followed by providing the data and control signals to the controller/processor 540. The controller/processor 540 performs L2 layer processing to interpret the first signal in this application. The controller/processor can be associated with a memory 530 that stores program codes and data. Memory 530 may be referred to as a computer-readable medium.
For one embodiment, a transmitter 556 (including an antenna 560), a transmit processor 555, and a controller/processor 590 are used to transmit the first signal as described herein.
For one embodiment, receiver 516 (including antenna 520), receive processor 512, and controller/processor 540 are used to receive the first signal described herein.
Example 6
Embodiment 6 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 6. In fig. 6, a second node device N1 is a maintaining base station of a serving cell of a first node device U2, the first node device U2 and another user device U3 communicating over a sidelink. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.
For theSecond sectionPoint device N1The first information is transmitted in step S11, the first signaling is transmitted in step S12, the second information is received in step S13, and the second signaling is transmitted in step S14.
For theFirst node device U2The first information is received in step S21, the first signaling is received in step S22, the first signal is transmitted in step S23, the second information is transmitted in step S24, and the second signaling is received in step S25.
For theAnother user device U3In step S31, a first signal is received.
In embodiment 6, the first information is used to determine X sets of alternative time-frequency resources and a first type of transmission, where X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; the first signal occupies the target time frequency resource set; the second information is used to indicate that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; a target recipient of the first signal is a recipient other than a target recipient of the second information, the first signal belonging to the first class of transmission; the second signaling is used to determine whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission; the receiving ending time of the second signaling is a first time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in a frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold; the first time-frequency resource set is the earliest alternative time-frequency resource set which is later than the first time at the starting time of the time domain and has the time interval length with the first time which is not less than the first threshold value in the X alternative time-frequency resource sets; the first node device automatically abandons the first type of transmission in the first time-frequency resource set and an alternative time-frequency resource set which is later than the first time-frequency resource set in the X alternative time-frequency resource sets at the starting time of the time domain; the third signaling is used for indicating the time-frequency resource occupied by the first signal and the modulation and coding mode adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
As an embodiment, the second signaling is a baseband signal.
For one embodiment, the second signaling is a radio frequency signal.
As an embodiment, the second signaling is carried by a Baseband (Baseband) signal.
As an embodiment, the second signaling is carried by a Radio Frequency (RF) signal.
As an embodiment, the second signaling is transmitted over an air interface.
As an embodiment, the second signaling is transmitted over a wireless interface.
As an embodiment, the second signaling is transmitted through a PC5 interface.
As an embodiment, the second signaling is transmitted through a Uu interface.
As an embodiment, the second signaling is transmitted through DL.
As an embodiment, the second signaling is transmitted over SL.
As an embodiment, the second signaling is MAC layer signaling.
As an embodiment, the second signaling is physical layer signaling.
As an embodiment, the second signaling is dynamic signaling.
As an embodiment, the second signaling carries DCI.
As an embodiment, the second signaling carries SCI.
As an embodiment, the second signaling carries a configuration grant index.
As an embodiment, the second signaling carries 16 configuration grant indexes.
As an embodiment, the second signaling is PDCCH.
As an embodiment, the second signaling is a PSCCH.
As one embodiment, the second signaling is PDSCH.
As an embodiment, the second signaling is a psch.
As an embodiment, the second signaling is transmitted through a PSSCH Piggyback (Piggyback).
As an embodiment, the second signaling is user-Specific (UE-Specific).
As an embodiment, the second signaling is user equipment Group-Specific (UE Group-Specific).
As an embodiment, the second signaling is acknowledgement signaling of the second information.
As an embodiment, the second signaling is PDCCH transmission scrambled by SL-SPS-V-RNTI (Sidelink-Semi-Persistent-Scheduling-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the second signaling is a PDCCH transmission scrambled by SL-CS-V-RNTI (Sidelink-Configured-Scheduled-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the second signaling is a PDCCH scrambled by SL-V-RNTI (Sidelink-Vehicle-Radio Network Temporary Identity) of the first node device.
As an embodiment, the second signaling is a PSCCH transmission scrambled by an L1 ID (Layer-1Identifier) of the first node device.
As an embodiment, the above sentence "the reception deadline of the second signaling is the first time" means that: the receiving end time of the latest OFDM symbol occupied by the second signaling is the first time.
As an embodiment, the above sentence "the reception deadline of the second signaling is the first time" means that: and the receiving end time of the time Slot (Slot) of the latest OFDM symbol occupied by the second signaling is the first time.
As an embodiment, the above sentence "the reception deadline of the second signaling is the first time" includes the following meanings: the expiration time of receipt of the second signaling is detected by the first node.
As an embodiment, the starting time of the time domain resource occupied by the first set of time and frequency resources is the starting time of the CP in the earliest OFDM symbol occupied by the first time and frequency resource.
As an embodiment, the starting time of the time-frequency resource occupied by the first set of time-frequency resources is the starting time of the time slot to which the earliest OFDM symbol occupied by the first time-frequency resource belongs.
As an embodiment, the starting time of the time domain resource occupied by the first set of time and frequency resources includes an influence of Timing Advance (Timing Advance).
As an embodiment, the starting time of the time domain resource occupied by the first time-frequency resource set is later than the first time.
As an embodiment, a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain may be the same.
As an embodiment, a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain may be different.
As an embodiment, the subcarrier spacing of the subcarriers occupied by the second signaling in the frequency domain is a positive integer multiple of the subcarrier spacing of the subcarriers occupied by the first set of time-frequency resources in the frequency domain.
As an embodiment, the subcarrier spacing of the subcarriers occupied by the first set of time-frequency resources in the frequency domain is a positive integer multiple of the subcarrier spacing of the subcarriers occupied by the second signaling in the frequency domain.
As an embodiment, the above sentence "at least one of the subcarrier spacing of the subcarriers occupied by the second signaling in the frequency domain and the subcarrier spacing of the subcarriers occupied by the first set of time-frequency resources in the frequency domain is used to determine the first threshold" means that: the subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain is used to determine the first threshold.
As an embodiment, the above sentence "at least one of the subcarrier spacing of the subcarriers occupied by the second signaling in the frequency domain and the subcarrier spacing of the subcarriers occupied by the first set of time-frequency resources in the frequency domain is used to determine the first threshold" means that: the subcarrier spacing of the subcarriers occupied by the first set of time-frequency resources in the frequency domain is used to determine the first threshold.
As one embodiment, a Timing Advance (TA) of the first node device at the time of receiving the second signaling is used to determine the first threshold.
As an embodiment, a processing delay of the first node device is used to determine the first threshold, wherein the processing delay includes, but is not limited to, a processing delay of the second signaling.
As an embodiment, the first threshold may be fixed to be 2.
As an embodiment, the first threshold may be fixed to be 3.
As an embodiment, the first threshold may be fixed to be 4.
As one embodiment, the unit of the first threshold is milliseconds (ms).
As an embodiment, the first threshold is equal to a time length of a positive integer number of OFDM symbols (symbols).
As an embodiment, the first threshold is equal to a time length of a positive integer number of slots (slots).
As an example, the first threshold is equal to a positive integer multiple Tc, where Tc is 1/(480000 4096) seconds.
As an embodiment, the first threshold is represented by a number of OFDM symbols.
As an embodiment, the first threshold is represented by a number of time slots (slots).
As an embodiment, the first threshold is equal to a time length of a positive integer number of OFDM symbols, where the OFDM symbols correspond to subcarrier intervals of subcarriers occupied by the second signaling in a frequency domain.
As an embodiment, the first threshold is equal to a time length of a positive integer number of OFDM symbols, where the OFDM symbols correspond to subcarrier intervals of subcarriers occupied by the first set of time-frequency resources in a frequency domain.
As an embodiment, the first threshold is equal to a time length of a positive integer number of time slots (slots), where the time slots correspond to subcarrier intervals of subcarriers occupied by the second signaling in a frequency domain.
As an embodiment, the first threshold is equal to a time length of a positive integer number of time slots (slots), where the time slots correspond to subcarrier intervals of subcarriers occupied by the first set of time and frequency resources in a frequency domain.
For one embodiment, the first threshold may be configurable by the second node device.
As an embodiment, the first threshold may be configured through higher layer signaling.
As an embodiment, the first threshold may be carried in all or part of an IE (Information Element) in RRC signaling.
As an embodiment, the first threshold may be carried in all or part of a Field (Field) in an IE (Information Element) in RRC signaling.
As an embodiment, the first threshold may be carried in all or part of a Field (Field) in a MAC (Medium Access Control) layer signaling.
As an embodiment, the first threshold may be carried in DCI.
As an example, the first threshold may be carried in the SCI.
As an embodiment, the first threshold may be carried in the second signaling.
As an embodiment, the above sentence "the first time-frequency resource set is an earliest alternative time-frequency resource set, among the X alternative time-frequency resource sets, of which a start time of a time domain is later than the first time and a time interval length between the first time and the first time is not less than the first threshold" means that: the first set of time-frequency resources is one of the X alternative sets of time-frequency resources, which is later than the first time instant at a start time of a time domain and has a time interval length equal to the first threshold.
As an embodiment, the above sentence "the first time-frequency resource set is an earliest alternative time-frequency resource set, among the X alternative time-frequency resource sets, of which a start time of a time domain is later than the first time and a time interval length between the first time and the first time is not less than the first threshold" means that: the first time-frequency resource set is a first alternative time-frequency resource set which is later than the first time moment in the starting time of the time domain and has a time interval length larger than the first threshold value with the first time moment in the X alternative time-frequency resource sets.
As an embodiment, the above sentence "the first node device abandons the first type transmission in the first time-frequency resource set and the candidate time-frequency resource sets of the X candidate time-frequency resource sets that have a starting time of a time domain later than the first time-frequency resource set by itself" means that: and the first node stops performing the first type transmission in the first time-frequency resource set and an alternative time-frequency resource set which is later than the first time-frequency resource set in the X alternative time-frequency resource sets at the starting time of the time domain.
As an embodiment, the above sentence "the first node device abandons the first type transmission in the first time-frequency resource set and the candidate time-frequency resource sets of the X candidate time-frequency resource sets that have a starting time of a time domain later than the first time-frequency resource set by itself" means that: the first node may perform transmissions other than the first type of transmission in the first set of time-frequency resources and in an alternative set of time-frequency resources of the X alternative sets of time-frequency resources that is later in time domain than the first set of time-frequency resources at a starting time.
As an embodiment, the third signaling is a baseband signal.
As an embodiment, the third signaling is a radio frequency signal.
As an embodiment, the third signaling is transmitted over an air interface.
As an embodiment, the third signaling is transmitted over a wireless interface.
As an embodiment, the third signaling is transmitted through a PC5 interface.
As an embodiment, the third signaling is transmitted through a Sidelink (Sidelink).
As an embodiment, the third signaling is physical layer signaling.
As an embodiment, the third signaling is dynamic signaling.
As an embodiment, the third signaling carries SCI (Sidelink Control Information)
Information).
As an embodiment, the third signaling is PSCCH (Physical Sidelink Control Channel).
As an embodiment, the third signaling is user-Specific (UE-Specific).
As an embodiment, the third signaling is a PSCCH transmission scrambled by a user-Specific (UE-Specific) L1 ID (Layer-1 identifier).
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used by the first node device in this application to determine the time-frequency resource occupied by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used for directly indicating the time-frequency resource occupied by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used for indirectly indicating the time-frequency resource occupied by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used to explicitly indicate the time-frequency resources occupied by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used to implicitly indicate the time-frequency resources occupied by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is used to determine a Modulation Coding Scheme (MCS) used by the first signal.
As an embodiment, the above sentence "the third signaling is used to indicate the time-frequency resources occupied by the first signal and the modulation and coding scheme adopted by the first signal" includes the following meanings: the third signaling is also used to determine the HARQ process to which the first signal belongs.
As an example, the above sentence "the target recipient of the third signaling comprises the target recipient of the first signal" includes the following meaning: the target recipient of the third signaling is the target recipient of the first signal.
As an example, the above sentence "the target recipient of the third signaling comprises the target recipient of the first signal" includes the following meaning: the target recipient of the third signaling is a recipient other than the target recipient of the first signal.
As an example, the above sentence "the target recipient of the third signaling comprises the target recipient of the first signal" includes the following meaning: the third signaling is used for listening (sending) by receivers other than the target receiver of the first signal.
As an embodiment, the above sentence "the X candidate time-frequency resource sets are periodically distributed in the time domain" means that: each of the X alternative sets of time-frequency resources has a time interval of the same time length in the time domain.
As an embodiment, the unit of the period length of the distribution period of the X alternative sets of time-frequency resources in the time domain used for determining the first information is milliseconds (ms).
As an embodiment, the first information is used to determine that a cycle length of a distribution cycle of the X alternative time-frequency resource sets in a time domain is equal to a time length of a positive integer number of OFDM symbols (symbols), where the OFDM symbols correspond to subcarrier intervals of subcarriers occupied by the X alternative time-frequency resource sets in a frequency domain.
As an embodiment, the first information is used to determine that a period length of a distribution period of the X candidate time-frequency resource sets in a time domain is equal to a time length of a positive integer number of time slots (slots), where OFDM symbols included in the time slots correspond to subcarrier intervals of subcarriers occupied by the X candidate time-frequency resource sets in a frequency domain.
As an embodiment, the first information is used to determine that a period length of a distribution period of the X candidate time-frequency resource sets in a time domain is equal to a positive integer multiple Tc, where Tc is 1/(480000 × 4096) seconds.
As an embodiment, the first information is used to determine that a period length of a distribution period of the X sets of alternative time-frequency resources in a time domain is represented by a number of OFDM symbols.
As an embodiment, the first information is used to determine that a period length of a distribution period of the X candidate sets of time-frequency resources in a time domain is represented by a number of slots (slots).
As an embodiment, the above sentence "the first information is used to determine the period length of the distribution cycle of the X candidate time-frequency resource sets in the time domain and the time domain position of the X candidate time-frequency resource sets in the distribution cycle to which the X candidate time-frequency resource sets belong" includes the following meanings: the first information carries the cycle length of the distribution cycle of the X candidate time frequency resource sets in the time domain.
As an embodiment, the above sentence "the first information is used to determine the period length of the distribution cycle of the X candidate time-frequency resource sets in the time domain and the time domain position of the X candidate time-frequency resource sets in the distribution cycle to which the X candidate time-frequency resource sets belong" includes the following meanings: the first information carries a first OFDM symbol in the time domain of one of the X candidate sets of time frequency resources.
As an embodiment, the above sentence "the first information is used to determine the period length of the distribution cycle of the X candidate time-frequency resource sets in the time domain and the time domain position of the X candidate time-frequency resource sets in the distribution cycle to which the X candidate time-frequency resource sets belong" includes the following meanings: the first information carries the last OFDM symbol in the time domain of one of the X candidate sets of time frequency resources.
As an embodiment, the above sentence "the first information is used to determine the period length of the distribution cycle of the X candidate time-frequency resource sets in the time domain and the time domain position of the X candidate time-frequency resource sets in the distribution cycle to which the X candidate time-frequency resource sets belong" includes the following meanings: the first information carries the number of OFDM symbols occupied by one time frequency resource set in the time domain in X alternative time frequency resource sets; the number of occupied OFDM symbols can be directly indicated or indicated by bitmap.
Example 7
Embodiment 7 illustrates another wireless signal transmission flow diagram according to an embodiment of the present application, as shown in fig. 7. In fig. 7, a second node device N4 is a maintaining base station of a serving cell of a first node device U5, the first node device U5 and another user device U6 communicating over a sidelink. It is specifically noted that the order in this example does not limit the order of signal transmission and the order of implementation in this application.
For theSecond node device N4The first information is transmitted in step S41, the second signaling is transmitted in step S42, and the second information is received in step S43.
For theFirst node device U5The first information is received in step S51, the second signaling is received in step S52, the first signal is transmitted in step S53, and the second information is transmitted in step S54.
For theAnother user device U6In step S61, a first signal is received.
In embodiment 7, the first information is used to determine X sets of alternative time-frequency resources and a first type of transmission, where X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; the first signal occupies the target time frequency resource set; the second information is used to indicate that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; a target recipient of the first signal is a recipient other than a target recipient of the second information, the first signal belonging to the first class of transmission; the transmission ending time of the second information is a second time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set, and the time interval length between the second time and the starting time of the time domain resources occupied by the first time-frequency resource set is not less than a second threshold value; the second threshold is predefined or configurable; the third signaling is used for indicating the time-frequency resource occupied by the first signal and the modulation and coding mode adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
As an embodiment, the transmission-off time of the second information is a transmission-end time of a latest OFDM symbol occupied by the second information.
As an embodiment, the transmission deadline of the second information is a transmission end time of a Slot (Slot) to which a latest OFDM symbol occupied by the second signaling belongs.
As an example, the above sentence "the transmission deadline of the second information is the second time" includes the following meanings: the transmission time of the second information is detected by the first node.
As an embodiment, the above sentence "the length of the time interval between the second time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than the second threshold" means that: and the length of the time interval between the second moment and the starting moment of the time domain resource occupied by the first time-frequency resource set is equal to a second threshold value.
As an embodiment, the above sentence "the length of the time interval between the second time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than the second threshold" means that: and the length of the time interval between the second moment and the starting moment of the time domain resource occupied by the first time-frequency resource set is greater than a second threshold value.
As an embodiment, the subcarrier spacing of the subcarriers occupied by the first node in the frequency domain at the first set of time-frequency resources is used to determine the second threshold.
As an embodiment, the second threshold may be predefined as 2.
As an embodiment, the second threshold may be predefined as 3.
As an embodiment, the second threshold may be predefined as 4.
As one embodiment, the unit of the second threshold is milliseconds (ms).
As an embodiment, the second threshold is equal to a time length of a positive integer number of OFDM symbols (symbols).
As an embodiment, the second threshold is equal to a time length of a positive integer number of slots (slots).
As an example, the second threshold is equal to a positive integer multiple Tc, where Tc is 1/(480000 4096) seconds.
As an embodiment, the second threshold is represented by a number of OFDM symbols.
As an embodiment, the second threshold is represented by a number of time slots (slots).
As an embodiment, the second threshold is equal to a time length of a positive integer number of OFDM symbols, where the OFDM symbols correspond to subcarrier intervals of subcarriers occupied by the first set of time-frequency resources in a frequency domain.
As an embodiment, the second threshold is equal to a time length of a positive integer number of time slots (slots), where OFDM symbols included in the time slots correspond to subcarrier intervals of subcarriers occupied by the first set of time and frequency resources in a frequency domain.
For one embodiment, a processing delay of the first node device is used to determine the second threshold, wherein the processing delay includes, but is not limited to, a transceive delay.
As an example, the sentence "the second threshold is configurable" above means: the second threshold may be configurable by the second node device.
As an example, the sentence "the second threshold is configurable" above means: the second threshold may be configured by higher layer signaling.
As an example, the sentence "the second threshold is configurable" above means: the second threshold may be carried in all or part of an IE (Information Element) in RRC signaling.
As an example, the sentence "the second threshold is configurable" above means: the second threshold may be carried in all or part of a Field (Field) in an IE (Information Element) in RRC signaling.
As an example, the sentence "the second threshold is configurable" above means: the second threshold may be carried in all or part of a Field (Field) in a MAC (Medium Access Control) layer signaling.
Example 8
Embodiment 8 illustrates a relationship diagram of a first time, a first threshold, a target time-frequency resource set, and a first time-frequency resource set according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the horizontal axis represents time, the vertical axis represents frequency, the rectangles filled with positive slashes represent target time-frequency resource sets, the dashed rectangles filled with negative slashes represent first time-frequency resource sets, and the dashed rectangles filled with dots represent alternative time-frequency resource sets with time domain starting time later than the first time-frequency resource sets.
As an embodiment, the first threshold is not related to a period length of a distribution period of the X alternative sets of time-frequency resources in the time domain.
In case a of embodiment 8, the first threshold is smaller than a cycle length of a distribution cycle of the X candidate sets of time-frequency resources in a time domain.
In case B of embodiment 8, the first threshold is not less than a cycle length of a distribution cycle of the X candidate sets of time-frequency resources in a time domain.
As an embodiment, after sending the second information, the first node expects the second node to send an acknowledgement signaling and complete the second signaling reception at the first time, where the second signaling is an acknowledgement signaling for the second information.
As an embodiment, the first node relinquishes by itself the first type transmission in the first set of time-frequency resources and in an alternative set of time-frequency resources of the X alternative sets of time-frequency resources whose starting time in time domain is later than the first set of time-frequency resources from the first time instant and a time instant separated from the first time instant by the first threshold.
As an embodiment, whether the first node relinquishes the first type of transmission on a target set of time-frequency resources between the first time and a starting time of a time-domain resource occupied by the first set of time-frequency resources depends on an Implementation (instantiation) of the first node device.
As an embodiment, whether the first node relinquishes the first type of transmission on a target set of time-frequency resources between the first time and a starting time of time-domain resources occupied by the first set of time-frequency resources depends on a device capability (UE capability) of the first node device.
As an embodiment, whether the first node performs a transmission other than the first type of transmission on a target set of time-frequency resources between the first time and a starting time of a time-domain resource occupied by the first set of time-frequency resources depends on an Implementation (initialization) of the first node device.
As an embodiment, whether the first node performs transmissions other than the first type of transmission on a target set of time-frequency resources between the first time and a starting time of time-domain resources occupied by the first set of time-frequency resources depends on a device capability (UE capability) of the first node device.
In case B of embodiment 8, the first node may abandon the first type of transmission on two sets of target time-frequency resources between the first time and the starting time of the time-frequency resources occupied by the first set of time-frequency resources.
In case B of embodiment 8, the first node may perform transmissions other than the first type of transmission on two sets of target time-frequency resources between the first time and a starting time of a time-frequency resource occupied by the first set of time-frequency resources.
Example 9
Embodiment 9 illustrates a relationship diagram of the second time, the second threshold, the target time-frequency resource set, and the first time-frequency resource set according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the horizontal axis represents time, the vertical axis represents frequency, the rectangles filled with positive slashes represent target time-frequency resource sets, the dashed rectangles filled with negative slashes represent first time-frequency resource sets, and the dashed rectangles filled with dots represent alternative time-frequency resource sets with time domain starting time later than the first time-frequency resource sets.
As an embodiment, the second threshold is not related to a period length of a distribution period of the X alternative sets of time-frequency resources in a time domain.
In case a of embodiment 9, the second threshold is smaller than a cycle length of a distribution cycle of the X candidate sets of time-frequency resources in a time domain.
In case B of embodiment 9, the second threshold is not less than the period length of the distribution period of the X alternative sets of time-frequency resources in the time domain.
As an embodiment, after the first node finishes sending the second information at the second time, the first node does not expect the second node to send an acknowledgement signaling.
As an embodiment, the first node abandons the first type of transmission in the first set of time-frequency resources and in an alternative set of time-frequency resources of the X alternative sets of time-frequency resources whose starting time in the time domain is later than the first set of time-frequency resources by itself from the second time and a time spaced from the second time by the second threshold.
As an embodiment, whether the first node relinquishes the first type of transmission on the target set of time-frequency resources between the second time and the starting time of the time-frequency resources occupied by the first set of time-frequency resources depends on an Implementation (initialization) of the first node device.
As an embodiment, whether the first node relinquishes the first type of transmission on the target set of time-frequency resources between the second time and the starting time of the time-frequency resources occupied by the first set of time-frequency resources depends on a device capability (UE capability) of the first node device.
As an embodiment, whether the first node performs a transmission other than the first type of transmission on a target set of time-frequency resources between the second time and a starting time of a time-domain resource occupied by the first set of time-frequency resources depends on an Implementation (initialization) of the first node device.
As an embodiment, whether the first node performs transmissions other than the first type of transmission on the target set of time-frequency resources between the second time and the starting time of the time-frequency resources occupied by the first set of time-frequency resources depends on a device capability (UE capability) of the first node device.
In case B of embodiment 9, the first node may abandon the first type of transmission on a target set of time-frequency resources between the second time and a starting time of the time-frequency resources occupied by the first set of time-frequency resources.
In case B of embodiment 9, the first node may perform transmissions other than the first type of transmission on a target set of time-frequency resources between the second time and a starting time of the time-frequency resources occupied by the first set of time-frequency resources.
Example 10
Embodiment 10 illustrates a schematic diagram of one time-frequency resource set of X alternative time-frequency resource sets according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the horizontal axis represents time, the vertical axis represents frequency, the bold rectangle represents one time frequency resource set of the X candidate time frequency resource sets, and the rectangle filled with positive diagonal lines represents a part of the time frequency resource set.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain consecutive OFDM symbols in the time domain.
In case a of embodiment 10, in a Normal CP (Normal Prefix) scenario, one time-frequency resource set of the X candidate time-frequency resource sets includes 1 slot (slot) in the time domain, that is, 14 OFDM symbols, including a first AGC (Automatic Gain Control) symbol and a last GAP (guard) symbol.
In case a of embodiment 10, in an ECP (Extended Cyclic Prefix) scenario, one time-frequency resource set of the X alternative time-frequency resource sets includes 1 slot, i.e. 12 OFDM symbols, in the time domain, including a first AGC (Automatic Gain Control) symbol and a last GAP (protection) symbol.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of time-domain discrete OFDM symbols greater than 1 in the time domain.
In case B of embodiment 10, in a Normal CP scenario, one time-frequency resource set of the X alternative time-frequency resource sets includes 2 time-domain discrete slots in the time domain, and each slot includes 14 OFDM symbols, including a first AGC symbol and a last GAP symbol.
In case B of embodiment 10, in an ECP scenario, one time-frequency resource set of the X alternative time-frequency resource sets comprises 2 time-domain discrete slots in the time domain, each slot comprising 12 OFDM symbols, including the first AGC symbol and the last GAP symbol.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises a positive integer number of SCHs (subchannels) in the frequency domain.
In case a and case B of embodiment 10, one time-frequency Resource set of the X alternative time-frequency Resource sets comprises 4 subchannels in the frequency domain, wherein each subchannel comprises a consecutive positive integer number of PRB Physical Resource blocks in the frequency domain).
As an embodiment, one time-frequency Resource set of the X alternative time-frequency Resource sets includes a positive integer number of PRBs (Physical Resource blocks) in a frequency domain.
As an embodiment, one time-frequency Resource set of the X alternative time-frequency Resource sets comprises a positive integer number of REs (Resource elements) in the frequency domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises consecutive frequency-domain resources in the frequency domain.
In case a and case B of embodiment 10, one time-frequency resource set of the X alternative time-frequency resource sets comprises 4 consecutive subchannels in the frequency domain.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises discrete frequency-domain resources in the frequency domain.
In case C of embodiment 10, one of the X alternative sets of time frequency resources comprises in the frequency domain discrete 3 sub-channels separated by one sub-channel, i.e. SCH-5, SCH-3, SCH-4 and SCH-6, respectively.
As an embodiment, one time-frequency resource set of the X alternative time-frequency resource sets comprises frequency-hopped frequency-domain resources in the frequency domain.
In case D of embodiment 10, one of the X alternative sets of time-frequency resources comprises frequency-domain resources of a frequency modulation in the frequency domain, wherein at slot 3 a subchannel 6 (i.e. SCH-6) is comprised in the frequency domain and a subchannel 3 (i.e. SCH-3) is comprised in the frequency domain at slot 6.
Example 11
Embodiment 11 illustrates a schematic diagram of an information format adopted by the MAC layer information carried by the second information according to an embodiment of the present application, as shown in fig. 11. In fig. 11, the MAC layer information in case a includes 3 bytes (Byte), each including 8 bits. The first byte is a MAC subheader (sub-header) including a reserved 2bit high (reserved) Field (Field) and a Logical Channel Identifier (LCID) low Field. Each configuration Grant (Configured Grant) corresponds to a configuration Grant index, and the second and third bytes include an indication bit for each configuration Grant index for indicating whether the first set of time-frequency resources Configured by the configuration Grant corresponding to the configuration Grant index can be used for transmissions other than the first type of transmission. If the lowest bit of the third byte corresponds to a configuration grant index 8, the information carried by the bit indicates whether the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index 8 can be used for transmission other than the first type of transmission, if the bit is set to 0, the first set of time-frequency resources configured by the configuration grant index 8 cannot be used for transmission other than the first type of transmission, and if the bit is set to 1, the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index 8 can be used for transmission other than the first type of transmission. The second lower bit of the third byte corresponds to a configuration grant index 9, and information carried by the bit indicates whether the first time-frequency resource set configured by the configuration grant corresponding to the configuration grant index 9 can be used for transmission other than the first-class transmission, and so on, which is not described again. In case B, the MAC layer information includes 2 bytes, where the first byte defines the same case a, the high 4 bits of the second byte are reserved (Reserve) fields, and the low 4 bits directly carry configuration grant indexes, which are used to indicate that the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index may be used for transmissions other than the first type of transmission. If the lower 4 bits of the second byte carry 0001, indicating that the first set of time-frequency resources configured by the configuration grant corresponding to configuration grant index 1 can be used for transmission other than the first type of transmission.
In embodiment 11, the second information in this application carries MAC layer information, where the MAC layer information carried by the second information in this application is used to indicate that a first set of time-frequency resources may be used for transmission other than the first type of transmission, and an information format used by the MAC layer information carried by the second information in this application is used to determine the first set of time-frequency resources.
In case a of embodiment 11, indicating that the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index can be used for transmissions other than the first type of transmission by using bit position 1 corresponding to the configuration grant index included in the second information.
In case a of embodiment 11, indicating that the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index cannot be used for transmission other than the first type of transmission by bit position 0 corresponding to the configuration grant index included in the second information.
In case B of embodiment 11, indicating that the first set of time-frequency resources configured by the configuration grant corresponding to the configuration grant index can be used for transmissions other than the first type of transmission by including the configuration grant index in the second information.
In the embodiment 11, LCID is a fixed positive integer, and the value is between 0 and 63, including 0 and 63.
Example 12
Embodiment 12 is a block diagram illustrating a processing apparatus in a first node device according to an embodiment, as shown in fig. 12. In fig. 12, a first node device processing apparatus 1200 includes a first receiver 1201, a first transmitter 1202, and a second transmitter 1203. The first receiver 1201 includes the transmitter/receiver 456 (including the antenna 460), the receive processor 452, and the controller/processor 490 of fig. 4 of the present application; alternatively, first receiver 1201 includes transmitter/receiver 556 (including antenna 560), receive processor 552, and controller/processor 590 of fig. 5 of the present application; the first transmitter 1202 includes a transmitter/receiver 456 (including an antenna 460), a transmit processor 455, and a controller/processor 490 of fig. 4; or the first transmitter 1202 may include the transmitter/receiver 556 (including the antenna 560), the transmit processor 555, and the controller/processor 590 of fig. 5; the second transmitter 1203 includes the transmitter/receiver 456 (including the antenna 460), the transmit processor 455, and the controller/processor 490 of fig. 4 of the present application; or the second transmitter 1203 includes the transmitter/receiver 556 (including the antenna 560), the transmit processor 555, and the controller/processor 590 of fig. 5 of the present application.
In embodiment 12, a first receiver 1201 receives first information and first signaling, where the first information is used to determine X sets of alternative time-frequency resources and a first type of transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission; a first transmitter 1202 transmitting a first signal, the first signal occupying the target set of time-frequency resources; a second transmitter 1203 transmits second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources; the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
For one embodiment, the first receiver 1201 receives second signaling used to determine whether the first set of time-frequency resources may be used for transmissions other than the first type of transmission.
As an embodiment, a receiving ending time of the second signaling is a first time, and the first time is earlier than a starting time of a time domain resource occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold.
As an embodiment, the first set of time-frequency resources is an earliest alternative set of time-frequency resources among the X alternative sets of time-frequency resources, which is later than the first time instant at a start time of a time domain and has a time interval length with the first time instant not less than the first threshold.
As an embodiment, the first node device autonomously abandons the first type transmission in the first set of time and frequency resources and in an alternative set of time and frequency resources of the X alternative sets of time and frequency resources that is later than the first set of time and frequency resources at a starting time of a time domain.
As an embodiment, the transmission ending time of the second information is a second time, the second time is earlier than the starting time of the time domain resource occupied by the first time-frequency resource set, and the length of the time interval between the second time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a second threshold; the second threshold is predefined or the second threshold is configurable.
As an embodiment, the first transmitter 1202 sends a third signaling, where the third signaling is used to indicate time-frequency resources occupied by the first signal and a modulation and coding scheme adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
As an embodiment, the X candidate time-frequency resource sets are periodically distributed in the time domain, and the first information is used to determine the period length of the distribution period of the time domain of the X candidate time-frequency resource sets and the time domain position of each of the X candidate time-frequency resource sets in the distribution period to which the X candidate time-frequency resource sets belong.
Example 13
Embodiment 13 is a block diagram illustrating a processing apparatus in a second node device according to an embodiment, as shown in fig. 13. In fig. 13, the second node device processing apparatus 1300 includes a third transmitter 1301 and a second receiver 1302. The third transmitter 1301 includes the transmitter/receiver 416 (including the antenna 460) and the transmit processor 415 and controller/processor 440 of fig. 4 of the present application; the third receiver 1302 includes the transmitter/receiver 416 (including the antenna 420), the receive processor 412, and the controller/processor 440 of fig. 4 of the present application.
In embodiment 13, the third transmitter 1301 transmits first information and first signaling, where the first information is used to indicate X sets of alternative time-frequency resources and a first type of transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission; the second receiver 1302 receives second information used for determining that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
As an embodiment, the third transmitter 1301 transmits second signaling, which is used to indicate whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission.
As an embodiment, the third transmitter 1301 transmits a second signaling, which is used to indicate whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission; the receiving ending time of the second signaling is a first time which is earlier than the starting time of the time domain resources occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold.
As an embodiment, the first set of time-frequency resources is an earliest alternative set of time-frequency resources among the X alternative sets of time-frequency resources, which is later than the first time instant at a start time of a time domain and has a time interval length with the first time instant not less than the first threshold.
As an embodiment, the second node device performs transmissions other than the first type of transmission in the first set of time-frequency resources and in an alternative set of time-frequency resources of the X alternative sets of time-frequency resources that is later in time domain than the first set of time-frequency resources at a starting time.
As an embodiment, the transmission ending time of the second information is a second time, the second time is earlier than the starting time of the time domain resource occupied by the first time-frequency resource set, and the length of the time interval between the second time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a second threshold; the second threshold is predefined or the second threshold is configurable.
As an embodiment, the third signaling is used to indicate the time-frequency resource occupied by the first signal and the modulation and coding scheme adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
As an embodiment, the X candidate time-frequency resource sets are periodically distributed in the time domain, and the first information is used to determine the period length of the distribution period of the time domain of the X candidate time-frequency resource sets and the time domain position of each of the X candidate time-frequency resource sets in the distribution period to which the X candidate time-frequency resource sets belong.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The first type of communication node device or the UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, a network 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 plane, and other wireless communication devices. The second type of communication node device or base station or network side device in this 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 and reception node TRP, a relay satellite, a satellite base station, an air base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. A first node device for wireless communication, comprising:
a first receiver, configured to receive first information and first signaling, where the first information is used to determine X alternative sets of time-frequency resources and a first type of transmission, where X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission;
a first transmitter, configured to transmit a first signal, where the first signal occupies the target time-frequency resource set;
a second transmitter for transmitting second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources;
wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
2. The first node device of claim 1, wherein the first receiver receives second signaling used to determine whether the first set of time-frequency resources can be used for transmissions other than the first type of transmission.
3. The first node device of claim 2, wherein the receiving ending time of the second signaling is a first time, and the first time is earlier than a starting time of a time domain resource occupied by the first time-frequency resource set; the time interval length between the first time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a first threshold value; the first threshold is fixed, or at least one of a subcarrier spacing of subcarriers occupied by the second signaling in the frequency domain and a subcarrier spacing of subcarriers occupied by the first set of time-frequency resources in the frequency domain is used for determining the first threshold.
4. The first node apparatus of claim 3, wherein the first set of time-frequency resources is an earliest alternative set of time-frequency resources of the X alternative sets of time-frequency resources, which is later than the first time instant in a time domain starting time and has a time interval length with the first time instant not less than the first threshold.
5. The first node device of claims 1 to 4, wherein the first node device autonomously relinquishes the first type of transmission in the first set of time-frequency resources and in an alternative set of time-frequency resources of the X alternative sets of time-frequency resources that is later than the first set of time-frequency resources at a starting time in the time domain.
6. The first node device according to any one of claims 1 to 5, wherein the transmission ending time of the second information is a second time, the second time is earlier than a starting time of the time domain resource occupied by the first time-frequency resource set, and a length of a time interval between the second time and the starting time of the time domain resource occupied by the first time-frequency resource set is not less than a second threshold; the second threshold is predefined or the second threshold is configurable.
7. The first node device of any of claims 1 to 6, wherein the first transmitter transmits third signaling; the third signaling is used for indicating the time-frequency resource occupied by the first signal and the modulation and coding mode adopted by the first signal; the target recipient of the third signaling comprises a target recipient of the first signal.
8. The first node apparatus according to any of claims 1 to 7, wherein the X alternative sets of time-frequency resources are periodically distributed in the time domain, and the first information is used to determine a period length of a distribution period of the X alternative sets of time-frequency resources in the time domain and a time domain position of each of the X alternative sets of time-frequency resources in the distribution period.
9. A second node device for wireless communication, comprising:
a third transmitter, configured to send first information and a first signaling, where the first information is used to indicate X candidate sets of time-frequency resources and a first type of transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission;
a second receiver configured to receive second information used to determine that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
10. A method in a first node used for wireless communication, comprising:
receiving first information and first signaling, wherein the first information is used for determining X alternative time frequency resource sets and first type transmission, and X is a positive integer larger than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling being used to determine whether the target set of time-frequency resources can be used for the first type of transmission;
sending a first signal, wherein the first signal occupies the target time frequency resource set;
transmitting second information indicating that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources;
wherein the intended recipient of the first signal is a recipient other than the intended recipient of the second information, the first signal belonging to the first class of transmission.
11. A method in a second node used for wireless communication, comprising:
sending first information and first signaling, wherein the first information is used for indicating X alternative time frequency resource sets and first type transmission, and X is a positive integer greater than 1; a target set of time-frequency resources is one of the X alternative sets of time-frequency resources, the first signaling is used to indicate whether the target set of time-frequency resources can be used for the first type of transmission;
receiving second information used for determining that a first set of time-frequency resources may be used for transmissions other than the first type of transmission, the first set of time-frequency resources being one of the X alternative sets of time-frequency resources other than the target set of time-frequency resources.
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