CN113923779A

CN113923779A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113923779A
Application number: CN202010662379.8A
Authority: CN
Inventors: 蒋琦; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2022-01-11

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The node receives K first-class signals and first signaling and sends the first signals; the first signaling is physical layer signaling, the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals in the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first type signals and a second parameter associated with one of the K1 first type signals other than the K1 first type signals. According to the method and the device, the beam management effect is improved and the overall performance of the system is improved by optimizing the sending mode of the beam failure recovery request under the unlicensed spectrum.

Description

Method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus over an unlicensed spectrum.

Background

In 5G NR (New Radio, New wireless), massive (Mass) MIMO (Multi-Input Multi-Output) is a key technology. In massive MIMO, multiple antennas form a narrow beam pointing in a specific direction by Beamforming (Beamforming) to improve communication quality. In the 5G NR, in order to deal with fast recovery when a beam fails, a beam failure recovery (beam failure recovery) mechanism has been adopted, that is, a UE (User equipment) measures a service beam in a communication process, and when the quality of the service beam is found to be poor, the beam failure recovery mechanism is started, and then the base station changes the service beam. The Beam failure recovery mechanism includes Beam failure detection (Beam failure detection), New candidate Beam identification (New candidate Beam identification), Beam failure recovery request transmission (Beam failure recovery request transmission), and monitoring (monitor) response to the Beam failure recovery request (response for Beam failure recovery request).

In the unlicensed spectrum, since uplink transmission needs to be limited by LBT (Li sten Before Talk, transmission after listening), the above-mentioned beam failure reply flow needs to be redesigned.

Disclosure of Invention

In traditional unlicensed spectrum transmission, a base station may notify a terminal of a length of a COT (Channel occupancy Time) through a PDCCH (Physical Downlink Control Channel) scrambled by a CC-RNTI (Common Control Radio Network Temporary identifier), so as to help the terminal determine a length of a Time window in which the PDCCH actually needs to be detected, thereby optimizing blind detection. Similarly, after the beamforming technology is introduced, the base station can also send the beam related information passed by the base station LBT to the terminal through the PDCCH, so that the terminal can monitor the UE-Specific (dedicated for the terminal device) scheduling signaling in a targeted manner, and the overall transmission efficiency is improved. However, due to the limitations of the COT, the beam related information passed by the base station LBT is often only valid within one COT, and the base station needs to perform LBT again outside the COT. Similarly, if the beam recovery procedure at the terminal side is performed only on the beam indicated by the PDCCH and passed through the LBT, there is a problem that too few beams can be selected by the UE.

In view of the above application scenarios and requirements, the present application discloses a solution, and it should be noted that, in a non-conflicting situation, features in the embodiments and embodiments of the first node in the present application may be applied to a base station, and features in the embodiments and embodiments of the second node in the present application may be applied to a terminal. In the meantime, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

Further, although the present application is originally directed to a scenario of UE uplink transmission in unlicensed spectrum, the present application can also be used in a scenario in licensed spectrum. Further, although the original purpose of the present application is to transmit a beamforming scene, the present application is also applicable to a non-beamforming scene, and achieves technical effects similar to those under beamforming. Moreover, different scenarios (including but not limited to a communication scenario between a terminal and a base station), such as a scenario of communication between terminals, may still employ a unified solution similar to that described herein to help reduce hardware complexity and cost.

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

receiving K first-type signals and first signaling;

transmitting a first signal;

wherein the first signaling is physical layer signaling, and the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals of the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

As an embodiment, one technical feature of the above method is that: the K1 first-class indexes indicated by the first signaling respectively correspond to K1 beams passed by the current LBT of the base station, and when the first node reports the candidate beams, the first node reports a beam associated with a first parameter in the K1 beams and reports a beam associated with a second parameter in beams other than the K1 beams, thereby ensuring that the base station can always find a proper beam from the two reported beams to serve the first node whether in the COT or outside the COT in the subsequent transmission.

According to one aspect of the application, comprising:

monitoring a target signaling in a target time-frequency resource set;

wherein at least one of the first parameter and the second parameter is used to determine multi-antenna related reception of the target signaling, and the time domain resources occupied by the first signal are used to determine a target time window, which includes the time domain resources occupied by the target set of time-frequency resources.

As an embodiment, one technical feature of the above method is that: the target signaling is feedback for candidate beams reported by the first node to determine to the first node that the first signal was correctly received.

As an embodiment, another technical feature of the above method is: when the first node reports two candidate beams, the first node needs to receive a response from a base station according to the spatial characteristics of the two candidate beams.

According to an aspect of the application, a given resource unit is any resource unit in the target set of time-frequency resources, whether the given resource unit belongs to a reference time window in time domain is used for determining which of the first and second parameters is used for multi-antenna related reception for the target signaling on the given resource unit.

As an embodiment, one technical feature of the above method is that: the reference time window is a COT and is used for resource units in a target time frequency resource set; when the resource unit belongs to the COT, the spatial characteristic corresponding to the first parameter is used for detecting beam failure recovery request feedback; when the resource unit does not belong to the COT, the spatial characteristics corresponding to at least the second parameter of the first parameter and the second parameter are both used for detecting the beam failure recovery request feedback.

As an embodiment, another technical feature of the above method is: the detection performance of the beam failure recovery request feedback is optimized, unnecessary blind detection is avoided, and the false alarm probability is reduced.

According to one aspect of the application, comprising:

receiving a third signaling;

wherein the third signaling is physical layer signaling, the third signaling is used to indicate the reference time window, and the third signaling is different from the first signaling.

As an embodiment, one technical feature of the above method is that: a COT is indicated by a PDCCH except for a first signaling, and the COT and a slot (slot) occupied by the first signaling are discontinuous.

According to one aspect of the application, comprising:

receiving L second-class signals;

wherein the measurements for the L second type signals are used to generate a first radio link quality, the first radio link quality satisfying a first condition, the first condition being used to trigger the first signal; l is a positive integer greater than 1.

As an embodiment, one technical feature of the above method is that: the first signal is triggered only if the measurements on the L second type signals all differ by a threshold.

According to an aspect of the application, the first signaling is used to indicate a first set of indices, which is used to determine the K1 first class indices from the K first class indices.

As an embodiment, one technical feature of the above method is that: the base station does not directly indicate a TCI-State (Transmission Configuration Indication-State), but indicates an SSB index to be associated to beam information through which the LBT passes.

According to one aspect of the application, comprising:

performing a first access detection;

wherein, the ending time of the first access detection is not later than the initial sending time of the first signaling; the first access detection is used to determine a target index set, which is used to determine the K1 first-class indices from the K first-class indices.

As an embodiment, one technical feature of the above method is that: the above determination of the K1 first-class indices is related to the result of LBT of the first node, and the K1 first-class indices are related to the beams through which LBT passes.

According to an aspect of the application, the first access detection comprises M sub-detections, and M second-class indices are respectively used for determining multi-antenna related receptions of the M sub-detections; only M1 sub-detections in the M sub-detections indicate that a channel is idle, and M1 second-class indices in the M second-class indices respectively correspond to the M1 sub-detections one to one; the M1 second-class indices are used to determine the target index set; m is a positive integer greater than 1, and M1 is a positive integer less than said M.

According to one aspect of the application, comprising:

receiving a second signaling;

the second signaling is used for indicating a first time window, the time domain resource occupied by the first signal belongs to a first time unit, and the time domain resource occupied by the first time unit belongs to the outside of the first time window.

As an embodiment, one technical feature of the above method is that: the first node reports two candidate beams only outside the COT.

According to one aspect of the application, comprising:

receiving a second signaling;

the second signaling is used for indicating a first time window, a time domain resource occupied by the first signal belongs to a first time unit, and the first time unit belongs to the first time window; the time window is divided into a first time unit and a second time unit, wherein the time window is divided into a first time unit and a second time unit, the time window is divided into a second time unit, the second time unit is divided into a first time unit and a second time unit, the time window is divided into a first time unit and a second time unit, the time unit and the second time unit are divided into a first time unit, and the time unit is divided into a first time unit and a second time unit.

As an embodiment, one technical feature of the above method is that: and the first node reports the two candidate beams only at a time domain position where one COT is close to the end.

The application discloses a method in a second node for wireless communication, comprising:

sending K first-class signals and first signaling;

receiving a first signal;

According to one aspect of the application, comprising:

sending a target signaling in a target time frequency resource set;

According to one aspect of the application, comprising:

sending a third signaling;

According to one aspect of the application, comprising:

transmitting L second-class signals;

According to one aspect of the application, comprising:

sending a second signaling;

According to one aspect of the application, comprising:

sending a second signaling;

The application discloses a first node for wireless communication, including:

the first receiver is used for receiving K first-class signals and first signaling;

a first transceiver to transmit a first signal;

The application discloses a second node for wireless communication, including:

the first transmitter is used for transmitting K first-class signals and first signaling;

a second transceiver to receive the first signal;

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

when the first node reports candidate beams, in addition to reporting a beam associated with a first parameter in the K1 beams, the first node also reports a beam associated with a second parameter in beams other than the K1 beams, thereby ensuring that the base station always finds a suitable beam from the two reported beams to serve the first node no matter whether the subsequent transmission is within the COT or outside the COT;

when the first node reports two candidate beams, the first node needs to receive responses from the base station according to the spatial characteristics of the two candidate beams;

the reference time window is a COT for the resource units in the target set of time-frequency resources; when the resource unit belongs to the COT, the spatial characteristic corresponding to the first parameter is used for detecting beam failure recovery request feedback; when the resource unit does not belong to the COT, the spatial characteristics corresponding to at least the second parameter of the first parameter and the second parameter are both used for detecting beam failure recovery request feedback; the detection performance of the beam failure recovery request feedback is optimized in the mode, unnecessary blind detection is avoided, and the false alarm probability is reduced;

and establishing a connection between the reported two candidate beams and the COT, thereby further simplifying the operation and avoiding unnecessary uplink transmission.

Drawings

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

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

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

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG. 5 shows a flow diagram of a first signal according to an embodiment of the present application;

FIG. 6 shows a flow diagram of second signaling according to an embodiment of the present application;

figure 7 shows a flow diagram of third signaling according to an embodiment of the present application;

fig. 8 shows a flow diagram of a first access detection according to an embodiment of the application;

FIG. 9 shows a schematic diagram of K first type signals according to an embodiment of the present application;

fig. 10 shows a schematic diagram of a first access detection according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of a target set of time-frequency resources according to an embodiment of the present application;

FIG. 12 shows a schematic diagram of a target set of time-frequency resources according to another embodiment of the present application;

FIG. 13 shows a schematic diagram of a given time window according to an embodiment of the present application;

FIG. 14 shows a block diagram of a processing device in a first node according to an embodiment of the present application;

fig. 15 shows a block diagram of a processing device in a second node according to an embodiment of the application.

Detailed Description

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

Example 1

Embodiment 1 illustrates a processing flow diagram of a first node, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In embodiment 1, a first node in the present application receives K first type signals and first signaling in step 101; a first signal is transmitted in step 102.

In embodiment 1, the first signaling is physical layer signaling, and the first signaling is used to determine K1 first-class indices from K first-class indices, where the K first-class indices are respectively associated with the K first-class signals, and the K1 first-class indices are respectively associated with K1 first-class signals of the K first-class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

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

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

As an embodiment, any one of the K first type signals is a wireless signal.

As an embodiment, any one of the K first type signals is a baseband signal.

As an embodiment, any one of the K first type Signals is a CSI-RS (Channel-State Information references Signals).

As an embodiment, at least one of the K first type signals is a CSI-RS.

As an embodiment, any one of the K first type signals occupies one CSI-RS resource.

As an embodiment, at least one first type signal of the K first type signals occupies one CSI-RS resource.

As an embodiment, any one of the K first type signals is an SSB (SS/PBCH Block, synchronization signal/physical broadcast channel Block).

As an embodiment, at least one of the K first type signals is an SSB.

As an embodiment, any one of the K first type signals occupies one SSB resource.

As an embodiment, at least one first type signal of the K first type signals occupies one SSB resource.

As one embodiment, the first signaling is transmitted over a licensed spectrum.

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

As an embodiment, the physical layer channel carrying the first signaling is a PDCCH.

As an embodiment, the first signaling includes CRC (Cyclic Redundancy Check), and CRC included in the first signaling is scrambled by a given RNTI (Radio Network Temporary Identifier).

As a sub-embodiment of this embodiment, the given RNTI is common.

As a sub-embodiment of this embodiment, the value of the given RNTI is fixed.

As a sub-embodiment of this embodiment, the given RNTI is an RNTI other than a C-RNTI.

As a sub-embodiment of this embodiment, the given RNTI is a user group specific RNTI.

As a sub-embodiment of this embodiment, the given RNTI is a C-RNTI.

As an embodiment, the K first-type indexes respectively correspond to K TCI-State.

As an embodiment, the K first-class indices are K TCI-stateids, respectively.

As an embodiment, the K first-type indexes respectively correspond to K CSI-RS indexes.

As an embodiment, the K first-class indexes respectively correspond to K CSI-RS resource IDs (identities).

As an embodiment, the K first-type indexes respectively correspond to K SSB indexes.

As an embodiment, any two first type signals of the K first type signals are non-QCL (Quasi Co-located).

As an embodiment, the K first class indices are used to determine the K first class signals, respectively.

As an embodiment, the K first class indices are used to indicate the K first class signals, respectively.

As an embodiment, the K1 first class indices are used to determine the K1 first class signals, respectively.

As an embodiment, the K1 first class indices are used to indicate the K1 first class signals, respectively.

As an embodiment, a Physical layer Channel carrying the first signal is a PUCCH (Physical Uplink Control Channel).

As an embodiment, the first signal is used to indicate the first parameter and the second parameter.

As one embodiment, the first signal includes the first parameter and the second parameter.

As an embodiment, the first target signal is a first type of signal associated with the first parameter in the K first type of signals, the first parameter is a first index, and the first index is a first type of index corresponding to the first target signal in the K first type of indexes.

As an embodiment, the second target signal is a first type signal associated with the second parameter in the K first type signals, the second parameter is a second index, and the second index is a first type index corresponding to the second target signal in the K first type indexes.

As a sub-embodiment of this embodiment, the second target signal is a first type signal out of the K first type signals and out of the K1 first type signals.

As an embodiment, the first signal comprises a first sub-signal and a second sub-signal, the first sub-signal being used for determining the first parameter and the second sub-signal being used for determining the second parameter.

As a sub-embodiment of this embodiment, the first class of signals of the first sub-signal associated with the first parameter is QCL.

As a sub-embodiment of this embodiment, the first type of signal for which the second sub-signal is associated with the second parameter is QCL.

As a sub-embodiment of this embodiment, the Physical layer Channel carrying the first sub-signal includes a PRACH (Physical Random Access Channel).

As a sub-embodiment of this embodiment, the physical layer channel carrying the second sub-signal comprises a PRACH.

As a sub-embodiment of this embodiment, the first sub-signal is generated by a Preamble sequence (Preamble).

As a sub-embodiment of this embodiment, the second sub-signal is generated by a Preamble sequence (Preamble).

As a sub-embodiment of this embodiment, the first parameter is used to determine a multi-antenna dependent transmission of the first sub-signal.

As a sub-embodiment of this embodiment, the second parameter is used for determining a multi-antenna dependent transmission of the second sub-signal.

As an embodiment, the first target signal is a first type of signal of the K first types of signals associated with the first parameter, and the second target signal is a first type of signal of the K first types of signals associated with the second parameter; the first target signals are the first type signals with the best link quality in the K1 first type signals, and the second target signals are the first type signals with the best link quality in the K2 first type signals out of the K1 first type signals; the K2 is a positive integer not less than 1, and the sum of the K1 and the K2 is equal to the K.

As a sub-embodiment of this embodiment, neither the link quality of the first target signal nor the link quality of the second target signal is below a first target threshold.

As a sub-embodiment of this embodiment, the link quality of the first target signal is not lower than a first target threshold and the link quality of the second target signal is not lower than a second target threshold; the first target threshold and the second target threshold are different.

As a sub-embodiment of this embodiment, the first target threshold is in dBm (millidecibels).

As a sub-embodiment of this embodiment, the unit of the first target threshold is dB (decibel).

As a sub-embodiment of this embodiment, the unit of the second target threshold is dBm.

As a sub-embodiment of this embodiment, the unit of the second target threshold is dB.

As a sub-implementation of this embodiment, the first target threshold is RSRP (Reference signal received power).

As a sub-embodiment of this embodiment, the first target threshold is RSRQ (Reference signal received quality).

As a sub-embodiment of this embodiment, the second target threshold is RSRP.

As a sub-embodiment of this embodiment, the second target threshold is RSRQ.

As a sub-embodiment of this embodiment, the first target threshold is BLER (BLock Error Rate).

As a sub-embodiment of this embodiment, the second target threshold is BLER.

As a sub-embodiment of this embodiment, the first target threshold is a measurement performance of the PDCCH.

As a sub-embodiment of this embodiment, the second target threshold is a measurement performance of the PDCCH.

As an embodiment, any one of the K1 first type signals is non-quasi co-located with any one of the K first type signals other than the K1 first type signals.

As an embodiment, the first signal is used for a BFR (Beam Failure Recovery) process.

As one embodiment, the first signal is used for a BFR Request (Request).

As an example, the QCL in this application includes QCL-TypeA in TS 38.214.

As an example, the QCL in this application includes QCL-TypeB in TS 38.214.

As an example, the QCL in this application includes QCL-TypeC in TS 38.214.

As an example, the QCL in this application includes QCL-TypeD in TS 38.214.

As an embodiment, the multi-antenna related Transmission described in this application is a TCI (Transmission Configuration Indicator).

As an embodiment, the multi-antenna related transmission described in this application is a multi-antenna related QCL (Quasi co-location) parameter.

As an example, the multi-antenna related transmission in this application is a Spatial Tx parameter (Spatial Tx parameter).

As an example, the multi-antenna related transmission described in this application is a transmission beam.

As an example, the multi-antenna related transmission described in this application is a transmit beamforming matrix.

As an example, the multi-antenna related transmission described in this application is a transmit analog beamforming matrix.

As an example, the multi-antenna related transmission described in this application is to transmit analog beamforming vectors.

As an example, the multi-antenna related transmission in this application is a transmit beamforming vector.

As an example, the multi-antenna correlated transmission in this application is Spatial domain filtering (Spatial domain filter).

As an embodiment, the multi-antenna related transmission in this application is Spatial domain transmission filtering (Spatial domain transmission filter).

As an example, the Spatial Tx parameter (Spatial Tx parameter) in the present application includes one or more of a transmit antenna port, a transmit antenna port group, a transmit beam, a transmit analog beamforming matrix, a transmit analog beamforming vector, a transmit beamforming matrix, a transmit beamforming vector, Spatial filtering, and Spatial transmit filtering.

As an embodiment, the multi-antenna related QCL parameters in the present application include: spatial Rx parameter (Spatial Rx parameter).

As an embodiment, the multi-antenna related QCL parameters in the present application include: angle of arrival (angle of arrival), angle of departure (angle of departure), spatial correlation, multi-antenna correlated transmission, multi-antenna correlated reception.

As an embodiment, the first signaling is broadcast.

As an embodiment, the first signaling is multicast.

As one embodiment, the first signaling is unicast.

As an embodiment, the frequency domain resources occupied by the K first type signals belong to an unlicensed spectrum.

As an embodiment, the frequency domain resource occupied by the first signaling belongs to an unlicensed spectrum.

As an embodiment, the frequency domain resource occupied by the first signaling belongs to a licensed spectrum.

As an embodiment, the frequency domain resource occupied by the first signal belongs to an unlicensed spectrum.

As an embodiment, the frequency domain resources occupied by the K first type signals are between 450MHz and 6 GHz.

As an embodiment, the frequency domain resources occupied by the K first type signals are between 24.25GHz and 52.6 GHz.

As an embodiment, the frequency domain resource occupied by the first signaling is between 450MHz and 6 GHz.

As an embodiment, the frequency domain resource occupied by the first signaling is between 24.25GHz and 52.6 GHz.

As an embodiment, the frequency domain resource occupied by the first signal is between 450MHz and 6 GHz.

As an embodiment, the frequency domain resource occupied by the first signal is between 24.25GHz and 52.6 GHz.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture, as shown in fig. 2.

Fig. 2 illustrates a diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution), and LTE-a (Long-Term Evolution-enhanced) systems. The 5G NR or LTE network architecture 200 may be referred to as EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, EPCs (Evolved Packet cores)/5G-CNs (5G-Core networks) 210, HSS (Home Subscriber Server) 220, and internet services 230. The EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 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 (transmitting receiving node), or some other suitable terminology. The gNB203 provides an access point for the UE201 to the EPC/5G-CN 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, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, an aircraft, a narrowband internet of things device, a machine type communication device, a terrestrial vehicle, an automobile, 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 connects to the EPC/5G-CN 210 through the S1/NG interface. The EPC/5G-CN 210 includes an MME (Mobility Management entity)/AMF (Authentication Management Domain)/UPF (User Plane Function) 211, other MMEs/AMFs/UPFs 214, an S-GW (Service Gateway) 212, and a P-GW (Packet data Network Gateway) 213. MME/AMF/UPF211 is a control node that handles signaling between UE201 and EPC/5G-CN 210. In general, the MME/AMF/UPF211 provides bearer and connection management. All user IP (Internet protocol) packets are transmitted through S-GW212, and S-GW212 itself is connected to P-GW 213. The P-GW213 provides UE IP address allocation as well as other functions. The P-GW213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

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

As an embodiment, the UE201 supports wireless transmission over unlicensed spectrum.

As an embodiment, the UE201 supports wireless transmission based on beamforming.

As an embodiment, the UE201 supports simultaneous reception of wireless signals on multiple beamforming vectors.

As an embodiment, the UE201 supports multiple panels for multi-antenna reception.

As an embodiment, the UE201 supports multiple Directional (Directional) LBT.

As an embodiment, the gNB203 corresponds to the second node in this application.

As one embodiment, the gNB203 supports wireless transmissions over unlicensed spectrum.

As an embodiment, the gNB203 supports wireless transmission based on beamforming.

As one embodiment, the gNB203 supports simultaneous reception of wireless signals on multiple beamforming vectors.

As an embodiment, the gNB203 supports multiple panels for multi-antenna transmission.

As an embodiment, the gNB203 supports multiple directional LBTs.

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 control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X) 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 communication node device and the second communication node device 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 communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets, and the PDCP sublayer 304 also provides handover support for a first communication node device to a second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio resource Control) sublayer 306 in layer 3 (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 communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

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

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

As an embodiment, the PDCP304 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the PDCP354 of the second communication node device is used to generate a schedule for the first communication node device.

As an embodiment, the K first type signals in this application are generated in the PHY301 or the PHY 351.

As an embodiment, the K first type signals in this application are 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 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 MAC302 or the MAC 352.

As an embodiment, the target signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the third signaling in the present application is generated in the PHY301 or the PHY 351.

As an embodiment, the L second type signals in this application are generated in the PHY301 or the PHY 351.

As an embodiment, the L second type signals in this application are generated in the MAC302 or the MAC 352.

As an embodiment, the second signaling in this application is generated in the PHY301 or the PHY 351.

As an embodiment, the second node is a terminal.

Example 4

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

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

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

In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the second communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal constellation based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the second communications apparatus 410 to the first communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the first communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered at a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communications device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In transmissions from the second communications device 410 to the second communications device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

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

In a transmission from the first communication device 450 to the second communication device 410, the functionality at the second communication device 410 is similar to the receiving functionality at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In transmission from the first communications device 450 to the second communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the UE 450. Upper layer data packets from the controller/processor 475 may be provided to a core network.

As an embodiment, the first communication device 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 communication device 450 apparatus at least: receiving K first-class signals and first signaling, and sending the first signal; the first signaling is physical layer signaling, the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals in the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

As an embodiment, the first communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving K first-class signals and first signaling, and sending the first signal; the first signaling is physical layer signaling, the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals in the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

As an embodiment, the second communication 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 communication device 410 means at least: sending K first-class signals and first signaling, and receiving the first signals; the first signaling is physical layer signaling, the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals in the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending K first-class signals and first signaling, and receiving the first signals; the first signaling is physical layer signaling, the first signaling is used for determining K1 first class indexes from K first class indexes, the K first class indexes are respectively associated with the K first class signals, and the K1 first class indexes are respectively associated with K1 first class signals in the K first class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

As an embodiment, the first communication device 450 corresponds to a first node in the present application.

As an embodiment, the second communication device 410 corresponds to a second node in the present application.

For one embodiment, the first communication device 450 is a UE.

For one embodiment, the first communication device 450 is a terminal.

For one embodiment, the second communication device 410 is a base station.

For one embodiment, the second communication device 410 is a terminal.

For one embodiment, the second communication device 410 is a UE.

For one embodiment, the second communication device 410 is a network device.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive K signals of a first type and first signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are configured to send the K first type signals and the first signaling.

As one implementation, at least the first four of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459 are used to send a first signal; at least the first four of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475 are used to receive a first signal.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to monitor for target signaling in a target set of time-frequency resources; at least the first four of the antennas 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 are configured to send target signaling in a target set of time-frequency resources.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive L signals of the second type; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send L second type signals.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive second signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send second signaling.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459 are configured to receive third signaling; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475 are used to send third signaling.

For one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 are configured to perform a first access detection.

Example 5

Embodiment 5 illustrates a flow chart of a first signal, as shown in fig. 5. In FIG. 5, a first node U1 communicates with a second node N2 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. Without conflict, the example and sub-examples in example 5 can be used in example 6, example 7, and example 8; on the contrary, the embodiments, sub-embodiments, and sub-embodiments in embodiment 6, embodiment 7, and embodiment 8 can be used in embodiment 5 without conflict.

For theFirst node U1L second type signals are received in step S10, K first type signals and first signaling are received in step S11, the first signals are transmitted in step S12, and target signaling is monitored in the target set of time-frequency resources in step S13.

For theSecond node N2L second type signals are transmitted in step S20, K first type signals and first signaling are transmitted in step S21, the first signals are received in step S22, and target signaling is transmitted in the target set of time-frequency resources in step S23.

In embodiment 5, the first signaling is physical layer signaling, and the first signaling is used to determine K1 first-class indices from K first-class indices, where the K first-class indices are respectively associated with the K first-class signals, and the K1 first-class indices are respectively associated with K1 first-class signals of the K first-class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, K1 is a positive integer greater than 1 and less than K; at least one of the first parameter and the second parameter is used to determine multi-antenna related reception of the target signaling, and a time domain resource occupied by the first signal is used to determine a target time window, where the target time window includes a time domain resource occupied by the target time-frequency resource set; the measurements for the L second type signals are used to generate a first radio link quality, which satisfies a first condition used to trigger the first signal; l is a positive integer greater than 1.

As an embodiment, the time slot occupied by the first signal is used to determine the starting time of the target time window in the time domain.

As an embodiment, the time slot occupied by the first signal is used to determine the cut-off time of the target time window in the time domain.

As an embodiment, the time slot occupied by the first signal is used to determine the duration of the target time window in the time domain.

As one embodiment, the first signal occupies slot # Q, the starting slot of the target time window in the time domain is # (Q + Q1), Q is a non-negative positive integer, and Q1 is a positive integer.

As a sub-embodiment of this embodiment, the Q1 is fixed.

As a sub-embodiment of this embodiment, said Q1 is equal to 4.

As a sub-embodiment of this embodiment, the Q1 is configured through RRC signaling.

As an embodiment, the target time-frequency resource set is configured by PRACH-resourcededicated bfr, which is specifically defined in section 6.3.2 of 3GPP TS 38.331.

As an embodiment, the identifier corresponding to the target time-frequency resource set is a recoverySearchSpaceId.

As an embodiment, the target time-frequency resource set occupies a positive integer number of REs (resource Elements) greater than 1.

For one embodiment, the target set of time-frequency resources comprises a set of search spaces.

For one embodiment, the target set of time-frequency resources comprises a set of search space sets.

As an embodiment, the target time-frequency Resource Set includes a CORESET (Control Resource Set).

As an embodiment, the target time-frequency resource set corresponds to a SearchSpaceID (search space identifier).

As an embodiment, the target time-frequency resource set corresponds to a SearchSpace Group ID.

As an embodiment, the target time-frequency resource set corresponds to a ControlResourceSetID.

As an embodiment, the first parameter and the second parameter are both used for reception of the target signaling.

As an embodiment, the spatial receiving parameter corresponding to the first parameter is used for receiving the target signaling, and the spatial receiving parameter corresponding to the second parameter is used for receiving the target signaling.

As an embodiment, the receive beam vector indicated by the first parameter is used for reception of the target signaling, and the receive beam vector indicated by the second parameter is used for reception of the target signaling.

As an embodiment, the target set of time-frequency resources comprises a first subset of time-frequency resources and a second subset of time-frequency resources.

As a sub-embodiment of this embodiment, the first subset of time-frequency resources includes a positive integer number of REs greater than 1.

As a sub-embodiment of this embodiment, the second subset of time-frequency resources comprises a positive integer number of REs larger than 1.

As a sub-embodiment of this embodiment, the first subset of time-frequency resources comprises a set of search spaces.

As a sub-embodiment of this embodiment, the second subset of time-frequency resources comprises a set of search spaces.

As a sub-embodiment of this embodiment, the first subset of time and frequency resources comprises one CORESET.

As a sub-embodiment of this embodiment, the second subset of time-frequency resources comprises one CORESET.

As a sub-embodiment of this embodiment, the first subset of time-frequency resources corresponds to a SearchSpaceID.

As a sub-embodiment of this embodiment, the second subset of time-frequency resources corresponds to a SearchSpaceID.

As a sub-embodiment of this embodiment, the first subset of time-frequency resources corresponds to one ControlResourceSetID.

As a sub-embodiment of this embodiment, the second subset of time-frequency resources corresponds to a ControlResourceSetID.

As a sub-embodiment of this embodiment, the first parameter is used for reception of the target signaling in the first subset of time-frequency resources.

As a sub-embodiment of this embodiment, the spatial receiving parameter corresponding to the first parameter is used for receiving the target signaling in the first subset of time-frequency resources.

As a sub-embodiment of this embodiment, the receiving beam vector corresponding to the first parameter is used for receiving the target signaling in the first subset of time-frequency resources.

As a sub-embodiment of this embodiment, the second parameter is used for reception of the target signaling in the second subset of time-frequency resources.

As a sub-embodiment of this embodiment, the spatial receiving parameter corresponding to the second parameter is used for receiving the target signaling in the second subset of time-frequency resources.

As a sub-embodiment of this embodiment, the receiving beam vector corresponding to the second parameter is used for receiving the target signaling in the second subset of time-frequency resources.

As a sub-embodiment of this embodiment, the first subset of Time-frequency resources and the second subset of Time-frequency resources are TDM (Time-division Multiplexing).

As a sub-embodiment of this embodiment, the first subset of time-Frequency resources and the second subset of time-Frequency resources are FDM (time-division Multiplexing).

As a sub-embodiment of this embodiment, the first subset of time-frequency resources and the second subset of time-frequency resources are SDMs (Space-division Multiplexing).

As an embodiment, at least one given resource unit exists in the target time-frequency resource set, and the first parameter and the second parameter are simultaneously used for reception of the target signaling on the given resource unit.

As an embodiment, the target signaling includes CRC, and the CRC included in the target signaling is scrambled by the target RNTI.

As a sub-embodiment of this embodiment, the target RNTI is a C-RNTI.

As a sub-embodiment of this embodiment, the target RNTI is an MCS-C-RNTI.

As an embodiment, the first parameter and the second parameter correspond to two panels, respectively.

As one example, the first node U1 includes at least two panels.

As an embodiment, the panel in the present application includes a positive integer number of antennas.

As an embodiment, a given resource unit is any resource unit in the target set of time-frequency resources, whether the given resource unit belongs to a reference time window in the time domain is used for determining which of the first and second parameters is used for multi-antenna related reception for the target signaling on the given resource unit.

As a sub-embodiment of this embodiment, the reference time window is a COT.

As a sub-embodiment of this embodiment, the given resource unit is one RE of positive integers occupied by the target time-frequency resource set.

As a sub-embodiment of this embodiment, the reference time window occupies T milliseconds in the time domain, and T is a real number greater than 1.

As a sub-embodiment of this embodiment, the reference time window occupies a positive integer number of consecutive time slots greater than 1 in the time domain.

As a sub-embodiment of this embodiment, the first signaling indicates the reference time window.

As a sub-embodiment of this embodiment, the first signaling indicates a starting time of the parameter time window.

As a sub-embodiment of this embodiment, the first signaling indicates an expiration time of the parameter time window.

As a sub-embodiment of this embodiment, the first signaling indicates a duration of the parameter time window.

As a sub-embodiment of this embodiment, the first parameter is used for monitoring for the target signaling on the given resource unit when the given resource unit belongs to the reference time window in the time domain.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter is used for monitoring for said target signalling on said given resource unit comprises: the spatial reception parameter corresponding to the first parameter is used for reception of the target signaling on the given resource unit.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter is used for monitoring for said target signalling on said given resource unit comprises: the first parameter is used for multi-antenna related reception for the target signaling on the given resource unit.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter is used for monitoring for said target signalling on said given resource unit comprises: the first parameter is used with a corresponding spatial beam vector for reception of the target signaling on the given resource unit.

As a sub-embodiment of this embodiment, the second parameter is used for monitoring for the target signaling on the given resource unit when the given resource unit belongs outside the reference time window in the time domain.

As an additional embodiment of this sub-embodiment, the meaning that said second parameter is used for monitoring said target signalling on said given resource unit comprises: the spatial reception parameter corresponding to the second parameter is used for reception of the target signaling on the given resource unit.

As an additional embodiment of this sub-embodiment, the meaning that said second parameter is used for monitoring said target signalling on said given resource unit comprises: the second parameter is used for multi-antenna related reception of the target signaling on the given resource unit.

As an additional embodiment of this sub-embodiment, the meaning that said second parameter is used for monitoring said target signalling on said given resource unit comprises: the second parameter is used with a corresponding spatial beam vector for reception of the target signaling on the given resource unit.

As a sub-embodiment of this embodiment, the first parameter and the second parameter are used for monitoring for the target signaling on the given resource unit when the given resource unit belongs outside the reference time window in the time domain.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter and said second parameter are used for monitoring for said target signalling on said given resource unit comprises: the spatial reception parameter corresponding to the first parameter and the spatial reception parameter corresponding to the second parameter are both used for reception of the target signaling on the given resource unit.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter and said second parameter are used for monitoring for said target signalling on said given resource unit comprises: the first parameter and the second parameter are both used for multi-antenna related reception of the target signaling on the given resource unit.

As a subsidiary embodiment of this sub-embodiment, the meaning that said first parameter and said second parameter are used for monitoring for said target signalling on said given resource unit comprises: the first and second parameters are both used for reception of the target signaling on the given resource unit with the corresponding spatial beam vector.

As an embodiment, any one of the L second-type signals is one of the K first-type signals.

As an embodiment, at least one of the L second-type signals is a signal other than the K first-type signals.

As an embodiment, any one of the L second-type signals is a CSI-RS.

As an embodiment, at least one of the L second-type signals is a CSI-RS.

As an embodiment, any one of the L second-type signals occupies one CSI-RS resource.

As an embodiment, at least one of the L second-type signals occupies one CSI-RS resource.

As an embodiment, any one of the L second-type signals is an SSB.

As an embodiment, at least one of the L second-type signals is an SSB.

As an embodiment, any one of the L second-type signals occupies one SSB resource.

As an embodiment, at least one of the L second-type signals occupies one SSB resource.

As one embodiment, the first radio link quality is RSRP.

As one embodiment, the first radio link quality is RSRQ.

As an embodiment, the first radio link quality is BLER.

As an embodiment, the first radio link quality is a measurement performance of PDCCH.

For one embodiment, the first condition includes being worse than a first threshold.

As a sub-embodiment of this embodiment, the first threshold is RSRP.

As a sub-embodiment of this embodiment, the first threshold is RSRQ.

As a sub-embodiment of this embodiment, the first threshold is BLER.

As a sub-embodiment of this embodiment, the unit of the first threshold is dBm.

As a sub-embodiment of this embodiment, the unit of the first threshold is dB.

As an embodiment, the first radio link quality includes L sub radio link qualities obtained by measurement on the L second type signals, respectively, and the L sub radio link qualities each satisfy a first condition.

As an embodiment, the first radio link quality is the best radio link quality obtained for the measurements of the L second type signals.

As an embodiment, the first signaling is used to indicate a first set of indices used to determine the K1 first class indices from the K first class indices.

As a sub-embodiment of this embodiment, the first signaling is used to indicate a first index set, the first index set is associated with a first reference signal set, any of the K1 first type signals and at least one of the first reference signal set are QCLs, and any of the K1 first type signals and any of the first reference signal set are non-QCLs.

As a sub-embodiment of this embodiment, the first set of indices includes a positive integer number of TCI-StateIDs.

As a sub-embodiment of this embodiment, the first set of indices includes a positive integer number of TCI-State.

As a sub-embodiment of this embodiment, the first set of indices includes a positive integer number of SSB indices.

As an example, the multi-antenna correlated reception in this application is spatial reception parameters (flat Rx parameters).

As an example, the multi-antenna related reception in this application is a reception beam.

As an embodiment, the multi-antenna related reception in this application is a reception beamforming matrix.

As an example, the multi-antenna related reception in this application is a reception analog beamforming matrix.

As an example, the multi-antenna related reception in this application is receiving analog beamforming vectors.

As an example, the multi-antenna related reception in this application is a receive beamforming vector.

As an embodiment, the multi-antenna correlated receiving in the present application is Spatial domain reception filtering (Spatial domain reception filter).

As an embodiment, the multi-antenna correlated reception in the present application is Spatial domain filtering (Spatial domain filter).

As one example, the spatial receive parameters (flat Rx parameters) in the present application include one or more of receive beams, receive analog beamforming matrices, receive analog beamforming vectors, receive beamforming matrices, receive beamforming vectors, spatial filtering, and spatial receive filtering.

Example 6

Embodiment 6 illustrates a flow chart of the second signaling, as shown in fig. 6. In FIG. 6, a first node U3 communicates with a second node N4 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. Without conflict, the example and sub-examples in example 6 can be used in example 5, example 7, and example 8; on the contrary, the embodiments, sub-embodiments, and sub-embodiments in embodiment 5, embodiment 7, and embodiment 8 can be used in embodiment 6 without conflict.

For theFirst node U3In step S30, the second signaling is received.

For theSecond node N4The second signaling is sent in step S40.

In embodiment 6, the second signaling is used to indicate the first time window.

As an embodiment, the time domain resource occupied by the first signal belongs to a first time unit, and the time domain resource occupied by the first time unit belongs to the outside of the first time window.

As an embodiment, a time domain resource occupied by the first signal belongs to a first time unit, and the first time unit belongs to the first time window; the time window is divided into a first time unit and a second time unit, wherein the time window is divided into a first time unit and a second time unit, the time window is divided into a second time unit, the second time unit is divided into a first time unit and a second time unit, the time window is divided into a first time unit and a second time unit, the time unit and the second time unit are divided into a first time unit, and the time unit is divided into a first time unit and a second time unit.

As a sub-embodiment of this embodiment, the first length of time is fixed.

As a sub-embodiment of this embodiment, the first time length is configured through RRC signaling.

As a sub-embodiment of this embodiment, the first length of time is equal to the duration of a positive integer number of consecutive time slots.

As an embodiment, the first time window is a COT.

As an embodiment, the second signaling is a DCI.

As an embodiment, the physical layer channel carrying the second signaling is a PDCCH.

As an embodiment, the second signaling includes a CRC, and the CRC included in the second signaling is scrambled by a given RNTI.

As a sub-embodiment of this embodiment, the given RNTI is common.

As a sub-embodiment of this embodiment, the value of the given RNTI is fixed.

As one embodiment, the second signaling is sent over a licensed spectrum.

As an embodiment, the second signaling is the first signaling.

As an embodiment, the second signaling and the first signaling are two fields in one DCI, respectively.

As an embodiment, the second signaling and the first signaling are transmitted by the same PDCCH.

As an embodiment, the first time unit is a time slot.

As an embodiment, the first time unit is a micro-slot.

As an embodiment, the first time unit is a sub-slot.

As an embodiment, the first time window occupies a positive integer number of consecutive time slots greater than 1.

As one embodiment, the first time window occupies a positive integer number of milliseconds greater than 1.

As one example, the step S30 is after step S12 and before step S13 in example 5.

As one example, the step S40 is after step S22 and before step S23 in example 5.

As one example, the step S30 is after step S11 and before step S12 in example 5.

As one example, the step S40 is after step S21 and before step S22 in example 5.

Example 7

Embodiment 7 illustrates a flow chart of the third signaling, as shown in fig. 7. In FIG. 7, a first node U5 communicates with a second node N6 via a wireless link. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. Without conflict, the example and sub-examples in example 7 can be used in example 5, example 6, and example 8; on the contrary, the embodiments, sub-embodiments, and sub-embodiments in embodiment 5, embodiment 6, and embodiment 8 can be used in embodiment 7 without conflict.

For theFirst node U5In step S50, the third signaling is received.

For theSecond node N6In step S60, the third signaling is sent.

In embodiment 7, the third signaling is physical layer signaling, the third signaling is used to indicate the reference time window, and the third signaling is different from the first signaling.

As an embodiment, the third signaling is used to determine a target parameter from the first parameter and the second parameter, the target parameter being either the first parameter or the second parameter, the target parameter being used to determine a multi-antenna related reception of the target signaling.

As one example, the step S50 is located before the step S12 and after the step S11 in example 5.

As an example, the step S50 is located after the step S30 in example 6.

As one example, the step S60 is located before the step S22 and after the step S21 in example 5.

As an example, the step S60 is located after the step S40 in example 6.

Example 8

Embodiment 8 illustrates a flow chart of first access detection, as shown in fig. 8. In fig. 8, a first node U7 communicates. It should be noted that the sequence in the present embodiment does not limit the signal transmission sequence and the implementation sequence in the present application. Without conflict, the example and sub-examples in example 8 can be used in example 5, example 6, and example 7; and the examples and sub-examples in examples 5, 6 and 7 can be used in example 8 without conflict.

For theFirst node U7In step S70, a first access detection is performed.

In embodiment 8, the ending time of the first access detection is not later than the starting transmission time of the first signaling; the first access detection is used to determine a target index set, which is used to determine the K1 first-class indices from the K first-class indices.

For one embodiment, the first access detection comprises synchronization.

For one embodiment, the first access detection includes reception on a plurality of SSB resources.

As one embodiment, the first access detection comprises LBT.

For one embodiment, the first access detection comprises channel sensing.

As an embodiment, the first access detection comprises M sub-detections, and M second-class indices are respectively used for determining multi-antenna related receptions of the M sub-detections; only M1 sub-detections in the M sub-detections indicate that a channel is idle, and M1 second-class indices in the M second-class indices respectively correspond to the M1 sub-detections one to one; the M1 second-class indices are used to determine the target index set; m is a positive integer greater than 1, and M1 is a positive integer less than said M.

As a sub-embodiment of this embodiment, the M second-class indexes respectively correspond to M index groups one-to-one; the M1 index groups are the index groups of the M index groups corresponding to the M1 second-class indexes respectively; the M1 index groups are used to determine the target index set.

As an additional embodiment of this sub-embodiment, the target index set includes the M1 index groups.

As an additional embodiment of this sub-embodiment, the target index set includes one of the M1 index groups.

As a sub-embodiment of this embodiment, the M sub-detections are performed on M spatial reception parameters, respectively.

As a sub-embodiment of this embodiment, the M sub-detections are performed on M beamforming vectors, respectively.

As a sub-embodiment of this embodiment, the M second-class indexes correspond to M SSB resources, respectively.

As a sub-embodiment of this embodiment, the M second-class indexes correspond to M SSB indexes, respectively.

As a sub-embodiment of this embodiment, the M second-class indices correspond to M TCI-State, respectively.

As a sub-embodiment of this embodiment, the M second class indices correspond to M TCI-StateIDs, respectively.

As a sub-embodiment of this embodiment, the M sub-detections are performed independently.

As a sub-embodiment of this embodiment, the target index set at least includes one index of the M1 second-class indexes.

As one example, the step S70 is located before the step S12 and after the step S11 in example 5.

Example 9

Example 9 illustrates a schematic diagram of K first type signals, as shown in fig. 9. In fig. 9, K1 first type signals of the K first type signals are indicated by the first signaling in the present application; the K first-type signals respectively correspond to K beamforming vectors.

As an embodiment, the first signaling explicitly indicates the K1 first type signals.

As an embodiment, the first signaling implicitly indicates the K1 first-type signals.

As an embodiment, the second node determines the K1 first-type signals from the K first-type signals through LBT.

As an embodiment, the K1 first type signals are respectively directed to K1 beamforming vectors passed by the second node LBT.

Example 10

Embodiment 10 illustrates a schematic diagram of a first access detection; as shown in fig. 10. In fig. 10, the first access detection includes M sub-detections, and M second-class indices are respectively used to determine multi-antenna related receptions of the M sub-detections; only M1 sub-detections in the M sub-detections indicate that a channel is idle, and M1 second-class indices in the M second-class indices respectively correspond to the M1 sub-detections one to one; the M1 second-class indices are used to determine the target index set; the target index set is used to determine the K1 first-class indices from the K first-class indices; m is a positive integer greater than 1, and M1 is a positive integer less than said M.

As an embodiment, the M second-class indices respectively correspond to M beamforming vectors.

As an embodiment, said M is equal to said K.

As one example, the M1 is equal to the K1.

As an embodiment, the M sub-detections are performed independently.

For one embodiment, the first node includes M panels.

Example 11

Embodiment 11 illustrates a schematic diagram of a target time-frequency resource set, as shown in fig. 11. In fig. 11, the target set of time-frequency resources occupies a positive integer number of REs greater than 1; and all the time domain resources occupied by the target time frequency resource set belong to the reference time window.

As an embodiment, the first parameter is used for determining a multi-antenna related reception of the target signaling.

As an embodiment, a spatial receiving parameter corresponding to the first parameter is used to determine to receive the target signaling.

Example 12

Embodiment 12 illustrates a schematic diagram of a target time-frequency resource set, as shown in fig. 12. In fig. 12, the target time-frequency resource set includes a first time-frequency resource subset and a second time-frequency resource subset, the time-frequency resources occupied by the first time-frequency resource subset belong to a reference time window, and the time-frequency resources occupied by the second time-frequency resource subset belong to the outside of the reference time window.

As an embodiment, the first parameter is used to determine a multi-antenna related reception in the first subset of time-frequency resources for the target signaling.

As an embodiment, the spatial receiving parameter corresponding to the first parameter is used to determine that the target signaling is received in the first subset of time and frequency resources.

As an embodiment, the second parameter is used for determining a multi-antenna related reception in the second subset of time-frequency resources for the target signaling.

As an embodiment, the spatial receiving parameter corresponding to the second parameter is used to determine that the target signaling is received in the second time-frequency resource subset.

As an embodiment, the first parameter and the second parameter are both used for determining a multi-antenna related reception in the second subset of time-frequency resources for the target signaling.

As an embodiment, the spatial receiving parameter corresponding to the first parameter and the spatial receiving parameter corresponding to the second parameter are used to determine that the target signaling is received in the second time-frequency resource subset.

Example 13

Example 13 illustrates a schematic diagram of a given time window, as shown in fig. 13. In fig. 13, the given time window occupies a consecutive positive integer number of time slots in the time domain, given signaling is used to indicate the given time window, and the given signaling is physical layer dynamic signaling.

As an embodiment, the given signaling is the first signaling in this application, and the given time window is the reference time window in this application.

As an embodiment, the given signaling is the second signaling in this application, and the given time window is the first time window in this application.

As an embodiment, the given signaling is the third signaling in this application, and the given time window is the reference time window in this application.

As an embodiment, the given time window is a COT.

Example 14

Embodiment 14 illustrates a block diagram of the structure in a first node, as shown in fig. 14. In fig. 14, a first node 1400 comprises a first receiver 1401 and a first transceiver 1402.

A first receiver 1401 for receiving K first type signals and first signaling;

a first transceiver 1402 that transmits a first signal;

in embodiment 14, the first signaling is physical layer signaling, and the first signaling is used to determine K1 first-class indices from K first-class indices, where the K first-class indices are respectively associated with the K first-class signals, and the K1 first-class indices are respectively associated with K1 first-class signals of the K first-class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

For one embodiment, the first transceiver 1402 monitors for target signaling in a target set of time-frequency resources; at least one of the first parameter and the second parameter is used to determine multi-antenna related reception of the target signaling, and the time domain resources occupied by the first signal are used to determine a target time window, which includes the time domain resources occupied by the target set of time-frequency resources.

As an example, the first receiver 1401 receives a third signaling; the third signaling is physical layer signaling, the third signaling is used to indicate the reference time window, the third signaling is different from the first signaling.

For one embodiment, the first receiver 1401 receives L second type signals; the measurements for the L second type signals are used to generate a first radio link quality, which satisfies a first condition used to trigger the first signal; l is a positive integer greater than 1.

As an example, the first receiver 1401 performs a first access detection; the ending time of the first access detection is not later than the initial sending time of the first signaling; the first access detection is used to determine a target index set, which is used to determine the K1 first-class indices from the K first-class indices.

As an example, the first receiver 1401 receives a second signaling; the second signaling is used for indicating a first time window, the time domain resource occupied by the first signal belongs to a first time unit, and the time domain resource occupied by the first time unit belongs to the outside of the first time window.

As an example, the first receiver 1401 receives a second signaling; the second signaling is used for indicating a first time window, a time domain resource occupied by the first signal belongs to a first time unit, and the first time unit belongs to the first time window; the time window is divided into a first time unit and a second time unit, wherein the time window is divided into a first time unit and a second time unit, the time window is divided into a second time unit, the second time unit is divided into a first time unit and a second time unit, the time window is divided into a first time unit and a second time unit, the time unit and the second time unit are divided into a first time unit, and the time unit is divided into a first time unit and a second time unit.

For one embodiment, the first receiver 1401 comprises at least the first 4 of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, and the controller/processor 459 of embodiment 4.

For one embodiment, the first transceiver 1402 includes at least the first 6 of the antenna 452, the transmitter/receiver 454, the multi-antenna transmit processor 457, the multi-antenna receive processor 458, the transmit processor 468, the receive processor 456, and the controller/processor 459 of embodiment 4.

Example 15

Embodiment 15 illustrates a block diagram of the structure in a second node, as shown in fig. 15. In fig. 15, a second node 1500 comprises a first transmitter 1501 and a second transceiver 1502.

A first transmitter 1501 which transmits K first type signals and first signaling;

a second transceiver 1502 that receives the first signal;

in embodiment 15, the first signaling is physical layer signaling, and the first signaling is used to determine K1 first-class indices from K first-class indices, where the K first-class indices are respectively associated with the K first-class signals, and the K1 first-class indices are respectively associated with K1 first-class signals of the K first-class signals; the first signals are used to determine a first parameter associated with one of the K1 first class signals and a second parameter associated with one of the K1 first class signals other than the K1 first class signals; k is a positive integer greater than 1, and K1 is a positive integer greater than 1 and less than K.

For one embodiment, the second transceiver 1502 transmits target signaling in a target set of time-frequency resources; at least one of the first parameter and the second parameter is used to determine multi-antenna related reception of the target signaling, and the time domain resources occupied by the first signal are used to determine a target time window, which includes the time domain resources occupied by the target set of time-frequency resources.

For one embodiment, the first transmitter 1501 transmits a third signaling; the third signaling is physical layer signaling, the third signaling is used to indicate the reference time window, the third signaling is different from the first signaling.

For one embodiment, the first transmitter 1501 transmits L second type signals; the measurements for the L second type signals are used to generate a first radio link quality, which satisfies a first condition used to trigger the first signal; l is a positive integer greater than 1.

For one embodiment, the first transmitter 1501 transmits the second signaling; the second signaling is used for indicating a first time window, the time domain resource occupied by the first signal belongs to a first time unit, and the time domain resource occupied by the first time unit belongs to the outside of the first time window.

For one embodiment, the first transmitter 1501 transmits the second signaling; the second signaling is used for indicating a first time window, a time domain resource occupied by the first signal belongs to a first time unit, and the first time unit belongs to the first time window; the time window is divided into a first time unit and a second time unit, wherein the time window is divided into a first time unit and a second time unit, the time window is divided into a second time unit, the second time unit is divided into a first time unit and a second time unit, the time window is divided into a first time unit and a second time unit, the time unit and the second time unit are divided into a first time unit, and the time unit is divided into a first time unit and a second time unit.

For one embodiment, the first transmitter 1501 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416, and the controller/processor 475 of embodiment 4.

For one embodiment, the second transceiver 1502 includes at least the first 6 of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the multi-antenna receive processor 472, the receive processor 470, and the controller/processor 475 of embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the 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. First node and second node in this application include but not limited to cell-phone, panel computer, notebook, network card, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle communication equipment, vehicles, vehicle, RSU, aircraft, unmanned aerial vehicle, wireless communication equipment such as remote control plane. The base station in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an over-the-air base station, an RSU, and other wireless communication devices.

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

Claims

1. A first node for use in wireless communications, comprising:

a first transceiver to transmit a first signal;

2. The first node of claim 1, wherein the first transceiver monitors for target signaling in a target set of time-frequency resources; at least one of the first parameter and the second parameter is used to determine multi-antenna related reception of the target signaling, and the time domain resources occupied by the first signal are used to determine a target time window, which includes the time domain resources occupied by the target set of time-frequency resources.

3. The first node according to claim 2, characterized in that a given resource unit is any resource unit in the target set of time-frequency resources, whether the given resource unit belongs to a reference time window in time domain is used for determining which of the first and second parameters is used for multi-antenna related reception for the target signaling on the given resource unit.

4. The first node according to any of claims 1 to 3, wherein the first receiver receives L second type signals; the measurements for the L second type signals are used to generate a first radio link quality, which satisfies a first condition used to trigger the first signal; l is a positive integer greater than 1.

5. The first node according to any of claims 1 to 4, wherein the first signaling is used to indicate a first set of indices used to determine the K1 first class indices from the K first class indices.

6. The first node according to any of claims 1 to 4, wherein the first receiver performs a first access detection; the ending time of the first access detection is not later than the initial sending time of the first signaling; the first access detection is used to determine a target index set, which is used to determine the K1 first-class indices from the K first-class indices.

7. The first node of claim 6, wherein the first access detection comprises M sub-detections, and wherein M indices of the second class are used to determine multi-antenna related receptions for the M sub-detections, respectively; only M1 sub-detections in the M sub-detections indicate that a channel is idle, and M1 second-class indices in the M second-class indices respectively correspond to the M1 sub-detections one to one; the M1 second-class indices are used to determine the target index set; m is a positive integer greater than 1, and M1 is a positive integer less than said M.

8. The first node according to any of claims 1 to 7, wherein the first receiver receives second signaling; the second signaling is used for indicating a first time window, the time domain resource occupied by the first signal belongs to a first time unit, and the time domain resource occupied by the first time unit belongs to the outside of the first time window.

9. The first node according to any of claims 1 to 7, wherein the first receiver receives second signaling; the second signaling is used for indicating a first time window, a time domain resource occupied by the first signal belongs to a first time unit, and the first time unit belongs to the first time window; the time window is divided into a first time unit and a second time unit, wherein the time window is divided into a first time unit and a second time unit, the time window is divided into a second time unit, the second time unit is divided into a first time unit and a second time unit, the time window is divided into a first time unit and a second time unit, the time unit and the second time unit are divided into a first time unit, and the time unit is divided into a first time unit and a second time unit.

10. A second node for use in wireless communications, comprising:

a second transceiver to receive the first signal;

11. A method in a first node in wireless communication, comprising:

receiving K first-type signals and first signaling;

transmitting a first signal;

12. A method in a second node in wireless communication, comprising:

sending K first-class signals and first signaling;

receiving a first signal;