CN113395764A

CN113395764A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN113395764A
Application number: CN202010167010.XA
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2021-09-14
Anticipated expiration: 2040-03-11
Also published as: CN113395764B

Abstract

A method and apparatus in a node used for wireless communication is disclosed. The first node receives the first signaling and the second signaling, and transmits a first information block. The first signaling comprises first configuration information, and the first configuration information is used for determining spatial parameters respectively associated with a plurality of reference signals; the second signaling comprises first spatial configuration information, the first spatial configuration information being used to determine a first subset of reference signals from the plurality of reference signals, the first subset of reference signals comprising a portion of the plurality of reference signals, spatial parameters associated with each reference signal in the first subset of reference signals relating to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block. By the method, the influence of beam uncertainty can be reduced by measuring the reference signal, and feedback overhead is reduced.

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 an unlicensed spectrum-related transmission scheme and apparatus in wireless communication.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on New Radio interface (NR) technology (or fine Generation, 5G) is decided over 72 sessions of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network), and standardization Work on NR is started over WI (Work Item) where NR passes through 75 sessions of 3GPP RAN.

One of the key technologies of NR is to support beam-based signal transmission, and its main application scenario is to enhance the coverage performance of NR devices operating in the millimeter wave frequency band (e.g., greater than 6 GHz). In addition, beam-based transmission techniques are also required to support large-scale antennas at low frequency bands (e.g., less than 6 GHz). Through the weighting process of the antenna array, the rf signal forms a stronger beam in a specific direction, and the rf signal is weaker in other directions. After the operations of beam measurement, beam feedback and the like, the beams of the transmitter and the receiver can be accurately aligned to each other, so that signals are transmitted and received with stronger power, and the coverage performance is improved. Beam measurement and feedback for NR systems operating in the millimeter wave band may be accomplished by multiple synchronized broadcast signal blocks (SS/PBCH blocks, SSBs) or channel state information reference signals (CSI-RSs). Different SSBs or CSI-RSs may use different beams for transmission, and a User Equipment (UE) measures an SSB or CSI-RS sent by a gNB (next generation Node B) and feeds back an SSB index and a CSI-RS resource number to complete beam alignment.

In conventional cellular systems, data transmission can only take place over licensed spectrum, however, with the dramatic increase in traffic, especially in some urban areas, licensed spectrum may be difficult to meet traffic demands. 3GPP Release 17 will consider extending the application of NR to unlicensed spectrum above 52.6 GHz. To ensure compatibility with access technologies on other unlicensed spectrum, LBT (Listen Before Talk) techniques are used to avoid interference due to multiple transmitters occupying the same frequency resources at the same time. For unlicensed spectrum above 52.6GHz, directional lbt (directional lbt) techniques are preferably used to avoid interference due to the significant directivity of beam-based signal transmission.

Disclosure of Invention

The inventors have found through research that the directional LBT technique is beneficial to improve the spectrum multiplexing efficiency and transmission performance of NR systems operating on unlicensed spectrum. After the directional LBT is successful, only the beam direction in which the LBT was successful can be used for signal transmission. Due to uncertainty of LBT result, the gNB and the UE cannot decide which beams corresponding to directional LBT will succeed before LBT ends. For CSI measurement, since CSI-RS or SSB is transmitted through a specific beam, the gNB and the UE cannot predict which CSI-RS or SSB can be transmitted and measured before the LBT is ended, and if there is no solution, the CSI measurement cannot be completed.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the scenario of air interface transmission between the cellular network gNB and the UE as an example, the present application is also applicable to other communication scenarios (e.g., a wireless local area network scenario, a sidelink transmission scenario between user equipments, etc.), and similar technical effects are obtained. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to cellular networks, wireless local area networks, sidelink transmissions, etc.) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

As an example, the term (telematics) in the present application is explained with reference to the definition of the specification protocol TS36 series of 3 GPP.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS38 series.

As an example, the terms in the present application are explained with reference to the definitions of the 3GPP specification protocol TS37 series.

As an example, the terms in the present application are explained with reference to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers).

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

receiving a first signaling;

receiving a second signaling;

transmitting a first information block;

wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the characteristics of the above method include: the first spatial configuration information is transmitted after LBT success, the first spatial configuration information being used to determine available beams. And only when the beam direction associated with the reference signal is consistent with the available beam direction determined by the first spatial configuration information, the Q1 reference signals are used for CSI measurement.

As an example, the benefits of the above method include: the first node may determine, according to the first spatial configuration information and the first configuration information, a reference signal that needs to be measured.

According to an aspect of the application, the method is characterized in that the first information block comprises a number of bits related to the number of reference signals comprised by the first subset of reference signals.

As an example, the benefits of the above method include: the information fed back by the first node only needs to reflect the measurement result of the first reference signal subset, and the whole measurement result of the Q1 reference signals does not need to be included, so that the feedback overhead is saved.

According to an aspect of the application, the above method is characterized in that the first spatial configuration information is used to determine a plurality of candidate spatial parameters; the spatial parameter associated with any of the reference signals in the first subset of reference signals is one of the plurality of candidate spatial parameters.

According to one aspect of the application, the above method is characterized by receiving first temporal configuration information, the first temporal configuration information being used to determine a first temporal window, the first spatial configuration information being valid within the first temporal window.

According to an aspect of the application, the above method is characterized in that the first spatial configuration information relates to spatial parameters of a first channel sensing operation used for determining whether a wireless signal can be transmitted on a first sub-band to which the frequency domain resources occupied by the second signaling belong.

According to an aspect of the application, the above method is characterized in that the first node assumes that any of the Q1 reference signals not belonging to the first subset of reference signals is not transmitted within the first time window.

As an example, the benefits of the above method include: reference signals which do not belong to the first reference signal subset are not transmitted, and time-frequency resources occupied by the reference signals can be used for other signals or channels, so that the spectrum utilization rate is improved.

According to an aspect of the application, the above method is characterized in that the first spatial configuration information is used to determine transmission parameters of the first information block.

As an embodiment, the essence of the above method includes: the first information block can be transmitted only using a beam for which LBT is successful, and a transmission beam of the first information block is determined by the first spatial configuration information.

As an example, the benefits of the above method include: and the first node and the second node determine the sending parameters of the first information block through the first spatial configuration information, so that the first information block can be correctly transmitted and received.

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

sending a first signaling;

sending a second signaling;

receiving a first information block;

According to one aspect of the application, the above method is characterized by sending first temporal configuration information, the first temporal configuration information being used to determine a first temporal window, the first spatial configuration information being valid within the first temporal window.

According to an aspect of the application, the method above is characterized in that the second node does not transmit any of the Q1 reference signals within the first time window that do not belong to the first subset of reference signals.

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

a first receiver receiving a first signaling;

a second receiver receiving a second signaling;

a first transmitter for transmitting a first information block;

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

a second transmitter for transmitting the first signaling;

a third transmitter for transmitting a second signaling;

a third receiver for receiving the first information block;

As an example, the present application has the following advantages:

the first node may determine an available beam within the channel occupation time according to the second signaling, and further select a reference signal to be measured from the plurality of reference signals notified by the first signaling according to the available beam, so that the measurement and feedback of the reference signal can avoid uncertainty caused by directional LBT.

The CSI feedback only needs to reflect the measurement results of the first subset of reference signals, saving feedback overhead compared to the technique of feeding back the measurement results of Q1 reference signals.

Reference signals not belonging to the first subset of reference signals are not transmitted, and the time-frequency resources of the reference signals can be used for other signal transmission, thereby improving the spectrum utilization rate.

-said first node determining the transmit beam of said first information block by said first spatial configuration information such that the first information block can be correctly transmitted and received avoiding transmit beam uncertainty caused by directional LBT.

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 of 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 a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

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

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

fig. 6 is a schematic diagram illustrating a time-frequency resource group respectively associated with Q1 reference signals and a time-frequency resource group occupied by a first reference signal subset according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of first spatial configuration information according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of first spatial configuration information according to an embodiment of the present application;

FIG. 9 illustrates a diagram of a relationship of a first channel sensing operation and a first time window according to an embodiment of the present application;

fig. 10 is a diagram illustrating time domain resources occupied by a second signaling, a first reference signal subset and a first information block, respectively, according to an embodiment of the present application;

fig. 11 shows a schematic diagram of the relationship between first channel-perceived spatial parameters, spatial parameters of a reference signal and transmission parameters of a first information block according to an embodiment of the present application;

FIG. 12 shows a block diagram of a processing arrangement for use in the first node;

fig. 13 shows a block diagram of a processing means for use in the second node.

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 according to an embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step. In particular, the order of steps in blocks does not represent a particular chronological relationship between the various steps. In embodiment 1, a first node in the present application receives a first signaling in step 101, receives a second signaling in step 102, and sends a first information block in step 103. In this embodiment, the first signaling includes first configuration information, the first configuration information is used to determine Q1 spatial parameters respectively associated with Q1 reference signals, and Q1 is an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the first signaling is dynamic signaling.

As an embodiment, the first signaling is layer 1(L1) signaling.

As an embodiment, the first signaling is layer 1(L1) control signaling.

As an embodiment, the first signaling is transmitted on a SideLink (SideLink).

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

As one embodiment, the first signaling is transmitted on a DownLink (DownLink).

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

As an embodiment, the first signaling is Unicast (Unicast) transmission.

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

As an embodiment, the first signaling is transmitted in a broadcast (borradcast).

As an embodiment, the first signaling is cell-specific.

As an embodiment, the first signaling is user equipment specific.

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

As an embodiment, the first signaling includes all or part of a Radio Resource Control (RRC) layer signaling.

As an embodiment, the first signaling includes one or more fields (fields) in an RRC IE (Information Element).

As an embodiment, the first signaling includes one or more fields in a SIB (System information Block).

As an embodiment, the first signaling comprises all or part of one MAC layer signaling.

As an embodiment, the first signaling includes one or more fields in a MAC CE (Control Element).

For one embodiment, the first signaling includes one or more fields in a PHY (Physical layer) layer signaling.

As an embodiment, the first signaling includes SCI (Sidelink Control Information).

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

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

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

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

As one embodiment, the first signaling is semi-statically configured.

As an embodiment, the first signaling is dynamically configured.

As an embodiment, the first signaling is transmitted on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling is sent on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the first signaling is sent on a psch (Physical Sidelink Shared Channel).

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

As an embodiment, the second signaling is dynamic signaling.

As an embodiment, the second signaling is layer 1(L1) signaling.

As an embodiment, the second signaling is layer 1(L1) control signaling.

As an embodiment, the second signaling is transmitted on a SideLink (SideLink).

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

As an embodiment, the second signaling is transmitted on a DownLink (DownLink).

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

As an embodiment, the second signaling is Unicast (Unicast) transmission.

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

As an embodiment, the second signaling is transmitted in a broadcast (borradcast).

As an embodiment, the second signaling is cell-specific.

As an embodiment, the second signaling is user equipment specific.

As an embodiment, the second signaling comprises all or part of a higher layer signaling.

As an embodiment, the second signaling includes all or part of a Radio Resource Control (RRC) layer signaling.

As an embodiment, the second signaling includes one or more fields (fields) in an RRC IE (Information Element).

As an embodiment, the second signaling includes one or more fields in a SIB (System information Block).

As an embodiment, the second signaling comprises all or part of a MAC layer signaling.

As an embodiment, the second signaling includes one or more fields in a MAC CE (Control Element).

For one embodiment, the second signaling includes one or more fields in a PHY (Physical layer) layer signaling.

As an embodiment, the second signaling includes SCI (Sidelink Control Information).

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

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

As an embodiment, the second signaling includes DCI (Downlink Control Information).

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

As an embodiment, the second signaling is semi-statically configured.

As an embodiment, the second signaling is dynamically configured.

As an embodiment, the second signaling is sent on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the second signaling is sent on a PDSCH (Physical Downlink Shared Channel).

As an embodiment, the second signaling is sent on a psch (Physical Sidelink Shared Channel).

As an embodiment, the second signaling is sent on a PSCCH (Physical Sidelink Control Channel).

As an embodiment, the second signaling is sent over a group Common pdcch (group Common pdcch).

As an embodiment, the second signaling is transmitted through NR DCI format 2_ 0.

As an embodiment, the second signaling comprises a CSI request (CSI request).

As an embodiment, the first information block is dynamic signaling.

As an embodiment, the first information block is layer 1(L1) signaling.

As an embodiment, the first information block is layer 1(L1) control signaling.

As an embodiment, the first information block is transmitted on a SideLink (SideLink).

As an example, the first information block is transferred via a PC5 interface.

For one embodiment, the first information block is transmitted on an uplink (DownLink).

As an embodiment, the first information block is transmitted over a Uu interface.

As an embodiment, the first information block comprises all or part of a higher layer signaling.

As an embodiment, the first information block includes all or part of a MAC layer signaling.

As an embodiment, the first information block includes one or more fields in a MAC CE (Control Element).

For one embodiment, the first information block includes one or more fields in a PHY (Physical layer) layer signaling.

As an embodiment, the first Information block includes SCI (Sidelink Control Information).

For one embodiment, the first information block includes one or more fields in a SCI.

For one embodiment, the first information block includes one or more fields in an SCI format.

As an embodiment, the first Information block includes UCI (Uplink Control Information).

For one embodiment, the first information block includes one or more fields in one UCI.

As an embodiment, the time-frequency resource occupied by the first information block is configured semi-statically.

As an embodiment, the time-frequency resource occupied by the first information block is dynamically configured.

As an embodiment, the first information block is transmitted on a PUCCH (Physical Uplink Control Channel).

As an embodiment, the first information block is transmitted on a PUSCH (Physical Uplink Shared Channel).

As an embodiment, the first information block is transmitted on a psch (Physical Sidelink Shared Channel).

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

As an embodiment, the first configuration information comprises a CSI resource configuration;

as an embodiment, the first configuration information comprises a CSI measurement configuration;

as an embodiment, the first configuration information comprises a CSI reporting configuration;

as an embodiment, the first configuration information is used to determine a time-frequency resource occupied by any one of the Q1 reference signals.

As an embodiment, the first configuration information is used to determine a period and an offset of any one of the Q1 reference signals.

As one embodiment, the first configuration information is used to determine a frequency domain density of any of the Q1 reference signals.

As an embodiment, the first configuration information is used to determine a port number and a port number of any one of the Q1 reference signals.

As an embodiment, the first configuration information is used to determine a number of CSI-RS resources.

As an embodiment, the first configuration information is used to determine the number of SSBs.

For one embodiment, the Q1 reference signals include downlink reference signals.

For one embodiment, the Q1 reference signals include sidelink reference signals.

For one embodiment, the Q1 reference signals include Q1 CSI-RSs.

For one embodiment, the Q1 reference signals include Q1 CSI-RS resources.

As an example, the Q1 reference signals include Q1 SSBs.

As an embodiment, the Q1 reference signals include N1 CSI-RS resources and N2 SSBs, where N1 and N2 are positive integers and N1+ N2 is Q1.

As one embodiment, any one of the Q1 reference signals includes a positive integer number of antenna ports.

As an embodiment, the spatial parameter includes a TCI (Transmission Configuration Indicator) status.

For one embodiment, the TCI status is used to determine QCL parameters.

For one embodiment, the spatial parameters include QCL (Quasi-Colocation) parameters.

As one embodiment, the spatial parameters include transmit beam parameters.

As one embodiment, the spatial parameters include receive beam parameters.

For one embodiment, the spatial parameters include a QCL type.

As an embodiment, the spatial parameters include a QCL type of QCL-typeD.

For one embodiment, the spatial parameters include a QCL association with a reference signal.

For one embodiment, the spatial parameters include QCL association with CSI-RS resources.

For one embodiment, the spatial parameters include QCL association with SSBs.

As an embodiment, Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine the reception beams of the Q1 reference signals.

As an embodiment, Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine the spatial reception parameters of the Q1 reference signals.

As an embodiment, Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine the transmit beams of the Q1 reference signals.

As an embodiment, Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine spatial transmission parameters of the Q1 reference signals.

As an embodiment, Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine QCL association of any one of the Q1 reference signals with another reference signal.

As an embodiment, the Q1 reference signals are Q1 CSI-RS resources, and Q1 spatial parameters respectively associated with the Q1 reference signals are used to determine a QCL association relationship between any one of the Q1 CSI-RS resources and another reference signal.

As a sub-embodiment of the above embodiment, the further reference signal is an SSB.

As a sub-embodiment of the above embodiment, the another reference signal is a CSI-RS resource.

As an embodiment, the specific definition of QCL is seen in section 5.1.5 in 3GPP TS 38.214.

As an embodiment, the QCL association of one reference signal and another reference signal refers to: all or part of large-scale (properties) characteristics of the wireless signal transmitted on the antenna port corresponding to the other reference signal can be deduced from all or part of large-scale (properties) characteristics of the wireless signal transmitted on the antenna port corresponding to the one reference signal.

As an example, the large scale characteristics of a wireless signal include one or more of { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), path loss (path loss), average gain (average gain), average delay (average delay), and Spatial Rx parameters }.

As one embodiment, the Spatial Rx parameters (Spatial Rx parameters) include one or more of { receive beams, receive analog beamforming matrix, receive analog beamforming vector, receive Spatial filtering (Spatial filter), Spatial domain reception filtering (Spatial domain reception filter) }.

As an embodiment, the QCL association of one reference signal and another reference signal refers to: the one reference signal and the another reference signal have at least one same QCL parameter (QCL parameter).

As an embodiment, the QCL parameters include: { delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), path loss (path loss), average gain (average gain), average delay (average delay), Spatial Rx parameters }.

As an embodiment, the QCL association of one reference signal and another reference signal refers to: at least one QCL parameter of the another reference signal can be inferred from the at least one QCL parameter of the one reference signal.

As an embodiment, the QCL type (QCL type) between one reference signal and another reference signal being QCL-type means: the Spatial Rx parameters (Spatial Rx parameters) of the wireless signal transmitted on the antenna port corresponding to the other reference signal can be inferred from the Spatial Rx parameters (Spatial Rx parameters) of the wireless signal transmitted on the antenna port corresponding to the one reference signal.

As an embodiment, the QCL type (QCL type) between one reference signal and another reference signal being QCL-type means: the one reference signal and the other reference signal can be received with the same Spatial Rx parameters (Spatial Rx parameters).

As an embodiment, the measurement results for the reference signals in the first subset of reference signals are used for determining a first measurement value, which is used for determining the first information block.

As a sub-embodiment of the above-mentioned embodiments, the first measurement value includes one or more of RI (Rank Indicator), CRI (Channel-state information Reference Signal Resource Indicator), RSRP (Reference Signal Received Power), RSSI (Received Signal Strength Indicator), SSB index, RSRQ (Reference Signal Quality, Reference Signal reception Quality), pmi (decoding Matrix Indicator) and cqi (Channel Quality Indicator).

As a sub-embodiment of the above embodiment, the first reporting information includes a quantized value of the first measurement value.

As an embodiment, at least one reference signal of the first class of reference signals of the first subset of reference signals is used for channel measurement (channel measurement).

As an embodiment, at least one reference signal of the first subset of reference signals is used for interference measurement (interference measure).

As an embodiment, at least one reference signal of the first type in the first subset of reference signals is used for beam measurement.

Example 2

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

Fig. 2 illustrates a diagram of a network architecture 200 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 a 5GS (5G System )/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS 200 may include one or more UEs (User Equipment) 201, NG-RANs (next generation radio access networks) 202, 5 GCs (5G Core networks )/EPCs (Evolved Packet cores) 210, HSS (Home Subscriber Server)/UDMs (Unified Data Management) 220, and internet services 230. The 5GS/EPS may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node b (gNB)203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (transmitting receiving node), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, 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 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet-switched streaming service.

As an embodiment, the first node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 203.

As an embodiment, the second node in this application includes the UE 241.

As an embodiment, the first node in this application includes the gNB 203.

As an embodiment, the second node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 204.

As an embodiment, the UE201 is included in the user equipment of the present application.

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

As an embodiment, the base station apparatus in this application includes the gNB 203.

As an embodiment, the base station device in this application includes the gNB 204.

As an embodiment, the UE201 supports sidelink transmission.

As an embodiment, the UE201 supports a PC5 interface.

As an embodiment, the UE201 supports the Uu interface.

For one embodiment, the UE241 supports sidelink transmission.

As an embodiment, the UE241 supports a PC5 interface.

As an embodiment, the gNB203 supports the Uu interface.

As an example, the gNB203 supports Integrated Access and Backhaul (IAB).

As an embodiment, the gNB204 supports access backhaul integration.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the first node (RSU in UE or V2X, car equipment or car communication module) and the second node (gNB, RSU in UE or V2X, car equipment or car communication module) or the control plane 300 between two UEs in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above the PHY301, and is responsible for the links between the first and second nodes and the two UEs through the PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for a second node by a first node. The RLC sublayer 303 provides segmentation and reassembly of packets, retransmission of missing packets by ARQ, and the RLC sublayer 303 also provides duplicate packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e., Radio bearers) and configuring the lower layers using RRC signaling between the second node and the first node. The radio protocol architecture of the user plane 350 includes layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second nodes is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first node 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 first signaling in this application is generated in the PHY 351.

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

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

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

As an embodiment, the first signaling in this application is generated in the RRC 306.

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

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

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

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

As an embodiment, the second signaling in this application is generated in the RRC 306.

As an embodiment, the first information block in this application is generated in the PHY 351.

As an embodiment, the first information block in this application is generated in the MAC 352.

As an embodiment, the first information block in the present application is generated in the PHY 301.

As an embodiment, the first information block in this application is generated in the MAC 302.

Example 4

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

The first communications 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.

The second 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.

In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In transmissions from the first communications device 410 to the first communications device 450, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communications device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450 and 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 first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband 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 second 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 first 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 first 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 second communications device 450 to the first communications device 410, a data source 467 is used at the second 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 transmit function at the first communications apparatus 410 described in the transmission from the first communications apparatus 410 to the second 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 first 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 second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives 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 transmissions from the second communications device 450 to the first communications device 410, the controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, 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 node in this application includes the second communication device 450, and the second node in this application includes the first communication device 410.

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

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

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

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

As a sub-embodiment of the foregoing embodiment, the first node is a relay node, and the second node is a base station device.

As a sub-embodiment of the foregoing embodiment, the first node is a base station device, and the second node is a base station device.

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

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

As a sub-embodiment of the above-described embodiment, the first communication device 410 includes: at least one controller/processor; the at least one controller/processor is responsible for error detection using positive Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocols to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 apparatus at least: receiving a first signaling; receiving a second signaling; transmitting a first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving a first signaling; receiving a second signaling; transmitting a first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: sending a first signaling; sending a second signaling; receiving a first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending a first signaling; sending a second signaling; receiving a first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the first signaling in this application.

As one example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the second signaling.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the first signaling in the present application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used for transmitting the second signaling in the present application.

As an example, at least one of { the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, the controller/processor 475, the memory 476} is used in this application to transmit the first information block.

As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, the data source 467 may be utilized to receive the first block of information in this application.

Example 5

Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in fig. 5. In FIG. 5, communication between the first node U1 and the second node U2 is over an air interface. In fig. 5, the order of the steps in the blocks does not represent a specific chronological relationship between the individual steps.

For the first node U1, receiving a first signal in step S11; receiving a second signaling in step S12; receiving first time configuration information in step S13; the first information block is transmitted in step S14. For the second node U2, sending first signaling in step S21; transmitting a second signaling in step S22; transmitting first time configuration information in step S23; the first information block is received in step S24. Among them, step S23 and step S13 contained in the dashed line box F51 are optional.

In embodiment 5, the first signaling includes first configuration information, the first configuration information is used for determining Q1 spatial parameters respectively associated with Q1 reference signals, and Q1 is an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block. The first temporal configuration information is used to determine a first temporal window within which the first spatial configuration information is valid.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a PC5 interface.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a sidelink.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a Uu interface.

For one embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between user equipment and user equipment.

For one embodiment, the air interface between the second node U2 and the first node U1 comprises a wireless interface between a base station device and a user equipment.

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

As an example, the first node in the present application is an automobile.

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

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

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

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

As an example, the second node in the present application is an automobile.

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

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

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

Example 6

Embodiment 6 illustrates a schematic diagram of a time-frequency resource group respectively associated with Q1 reference signals and a time-frequency resource group occupied by a first reference signal subset according to an embodiment of the present application, as shown in fig. 6. In fig. 6, each dashed box represents a time-frequency resource group associated with one reference signal, and the dashed boxes filled in the grid represent time-frequency resource groups occupied by the reference signals included in the first reference signal subset. The size and position of the dashed box in fig. 6 are only for illustration, and the time and frequency resources occupied by the reference signal are not limited by the size and position of the dashed box.

As an embodiment, the group of time-frequency resources associated with any one of the Q1 reference signals is determined by the first configuration information.

As an embodiment, the time-frequency Resource group associated with any one of the Q1 reference signals includes a positive integer number of REs (Resource elements) in a frequency domain.

As an embodiment, the time-frequency Resource group associated with any one of the Q1 reference signals includes a positive integer number of RBs (Resource blocks) in the frequency domain.

As an embodiment, the time-frequency resource group associated with any one of the Q1 reference signals includes a positive integer number of multicarrier symbols in the time domain.

As an embodiment, the time-frequency resource group associated with any one of the Q1 reference signals is used for transmitting any one of the Q1 reference signals.

As an embodiment, the time-frequency resource group associated with any one of the Q1 reference signals appears periodically in the time domain.

As an embodiment, when any one of the Q1 reference signals is transmitted, any one of the Q1 reference signals occupies a group of time-frequency resources associated with any one of the Q1 reference signals.

As one embodiment, any one of the Q1 reference signals is semi-statically activated.

As one embodiment, any one of the Q1 reference signals is semi-statically deactivated.

As an embodiment, any one of the Q1 reference signals is dynamically triggered by physical layer signaling.

As an embodiment, the first signaling is physical layer signaling, the first signaling comprising a CSI request, the measurement behavior for any of the Q1 reference signals being triggered by the CSI request.

As an embodiment, the first signaling is MAC layer signaling, the first signaling comprising CSI-RS activation information, the measurement behavior for any of the Q1 reference signals being triggered by the CSI-RS activation information.

As an embodiment, the first signaling is RRC layer signaling, the first signaling including CSI-RS configuration information, the measurement behavior for any of the Q1 reference signals being indicated by the CSI-RS configuration information.

For one embodiment, the Q1 reference signals are respectively associated with Q1 groups of time-frequency resources.

For one embodiment, the first subset of reference signals includes N3 reference signals, the N3 being a positive integer less than Q1.

As an embodiment, the N3 reference signals included in the first reference signal subset occupy N3 time-domain consecutive time-frequency resource groups of the Q1 time-frequency resource groups, respectively.

As an embodiment, the first reference signal subset includes N3 reference signals occupying N3 time-frequency resource groups that are not time-domain consecutive from the Q1 time-frequency resource groups, respectively.

As an embodiment, the Q1 time-frequency resource groups are numbered in time sequence, and the first reference signal subset includes N3 reference signals occupying the first N3 time-frequency resource groups of the Q1 time-frequency resource groups, respectively.

As an embodiment, the Q1 time-frequency resource groups are numbered in time sequence, and the N3 reference signals included in the first reference signal subset occupy the last N3 time-frequency resource groups of the Q1 time-frequency resource groups, respectively.

As an embodiment, when the reference signal and other physical channels are multiplexed, since the reference signal and other physical channels need to be able to be transmitted by using the same beam, the N3 reference signals included in the first reference signal subset are transmitted at a compact time interval in the time domain in the above method, and the constraint on the transmission beam in the above multiplexing scenario can be alleviated.

As an embodiment, the first node assumes that any of the Q1 reference signals not belonging to the first subset of reference signals is not transmitted within the first time window.

As an embodiment, the sentence "the first node assumes that any of the Q1 reference signals not belonging to the first reference signal subset is not transmitted within the first time window" includes that the first node assumes that overlapping time-frequency resources are used for transmitting other wireless signals when there is overlapping time-frequency resources between the time-frequency resources occupied by the other wireless signals and the group of time-frequency resources associated with any of the Q1 reference signals not belonging to the first reference signal subset.

As a sub-embodiment of the above embodiment, the other wireless signal comprises a PDSCH.

As a sub-embodiment of the above embodiment, the other wireless signal comprises a PUCCH.

As a sub-embodiment of the above embodiment, the other wireless signal includes PUSCH.

As a sub-embodiment of the above embodiment, the other wireless signal comprises a DMRS.

Example 7

Embodiment 7 illustrates a schematic diagram of first spatial configuration information according to an embodiment of the present application, as shown in fig. 7. In fig. 7, the first spatial configuration information is used to determine N4 candidate spatial parameters, where N4 candidate spatial parameters are distinguished by suffix # and number, where N4 is an integer greater than 1.

As an embodiment, the spatial parameter associated with any of the reference signals in the first subset of reference signals is one of the N4 candidate spatial parameters.

For one embodiment, the candidate spatial parameters include a TCI status.

For one embodiment, the candidate spatial parameters include QCL parameters.

For one embodiment, the candidate spatial parameters include transmit beam parameters.

For one embodiment, the candidate spatial parameters include receive beam parameters.

For one embodiment, the candidate spatial parameters include a QCL type.

For one embodiment, the candidate spatial parameters include a QCL type of QCL-typeD.

For one embodiment, the candidate spatial parameters include a QCL association with a reference signal.

For one embodiment, the candidate spatial parameters include a QCL association with CSI-RS resources.

For one embodiment, the candidate spatial parameters include QCL association with SSBs.

As an embodiment, if the spatial parameter associated with one reference signal is a candidate spatial parameter # i, the candidate spatial parameter # i is used for determining the QCL association of the one reference signal and another reference signal, wherein i is an integer not greater than N4, the another reference signal is one CSI-RS resource or SSB, and the candidate spatial parameter # i is used for determining the another reference signal.

For one embodiment, the first spatial configuration information includes a TCI status.

As one embodiment, the first spatial configuration information includes a CSI-RS resource index.

As a sub-embodiment of the foregoing embodiment, the CSI-RS resource indicated by the CSI-RS resource index included in the first spatial configuration information and the plurality of reference signals have a QCL association relationship.

As a sub-embodiment of the above-mentioned embodiments, the CSI-RS resource indicated by the CSI-RS resource index included in the first spatial configuration information is transmitted using a wide beam.

As a sub-embodiment of the foregoing embodiment, the CSI-RS resource indicated by the CSI-RS resource index included in the first spatial configuration information is transmitted using a plurality of beams.

For one embodiment, the first spatial configuration information includes an SSB index.

As a sub-embodiment of the foregoing embodiment, the SSB indicated by the SSB index included in the first spatial configuration information and the plurality of reference signals have a QCL association relationship.

As a sub-embodiment of the above-mentioned embodiment, the SSB indicated by the SSB index included in the first spatial configuration information is transmitted using a wide beam.

As a sub-embodiment of the foregoing embodiment, the SSB indicated by the SSB index included in the first spatial configuration information is transmitted using multiple beams.

As an embodiment, the first spatial configuration information includes a target index, the first index set includes a plurality of first indexes, the target index is one of the plurality of first indexes, and any one of the plurality of first indexes is used for determining a plurality of the candidate spatial parameters.

As a sub-embodiment of the above embodiment, the first index includes a TCI state group indication, the candidate spatial parameter includes a TCI state, and the TCI state group indication is used to determine a plurality of TCI states.

Example 8

Embodiment 8 illustrates a schematic diagram of first spatial configuration information according to an embodiment of the present application, as shown in fig. 8. In fig. 8, the first spatial configuration information includes a plurality of spatial configuration information elements, and any of the plurality of spatial configuration information elements is used to determine a plurality of candidate spatial parameters.

For one embodiment, the spatial configuration information element includes a TCI status.

As an embodiment, the spatial configuration information element includes a CSI-RS resource index.

As a sub-embodiment of the foregoing embodiment, the CSI-RS resource indicated by the CSI-RS resource index included in the spatial configuration information element and the plurality of reference signals have a QCL association relationship.

As a sub-embodiment of the above-mentioned embodiments, the CSI-RS resource indicated by the CSI-RS resource index included in the spatial configuration information element is transmitted using a wide beam.

As a sub-embodiment of the foregoing embodiment, the CSI-RS resource indicated by the CSI-RS resource index included in the spatial configuration information element is transmitted using a plurality of beams.

For one embodiment, the spatial configuration information element includes an SSB index.

As a sub-embodiment of the foregoing embodiment, the SSB indicated by the SSB index included in the spatial configuration information element and the plurality of reference signals have a QCL association relationship.

As a sub-embodiment of the above embodiment, the SSB indicated by the SSB index included in the spatial configuration information element is transmitted using a wide beam.

As a sub-embodiment of the foregoing embodiment, the SSB indicated by the SSB index included in the spatial configuration information element is transmitted using multiple beams.

As an embodiment, the spatial configuration information unit includes a target index, the first index set includes a plurality of first indexes, the target index is one of the plurality of first indexes, and any one of the plurality of first indexes is used for determining a plurality of the candidate spatial parameters.

Example 9

Embodiment 9 illustrates a schematic diagram of a relationship between a first channel sensing operation and a first time window according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the gray filled boxes represent the time resources occupied by the first channel sensing operation, and the white filled boxes represent the time resources occupied by the first time window. First temporal configuration information in the present application is used to determine a first temporal window within which the first spatial configuration information is valid.

As an embodiment, the length of the first time window is determined by first time configuration information, the first spatial configuration information being valid within the first time window.

As an embodiment, the first time window is after completion of the first channel sensing operation.

As an embodiment, the first time configuration information is sent in the second signaling.

As an embodiment, the first time configuration information is used to determine a cot (channel Occupancy time).

As an embodiment, the first time configuration information is used to determine an end time of a COT.

As an embodiment, the first time configuration information is used to determine a start time and an end time of a COT.

As an embodiment, the first time configuration information is used to determine a time length of a COT.

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

As an embodiment, the end time of the first time window is the same as the end time of the COT.

As an embodiment, the end time of the first time window is the same as the end time of the last downlink symbol in the COT.

As an embodiment, the start time of the first time window is a start time of a first multicarrier symbol after receiving a physical channel for transmitting the first time configuration information.

As an embodiment, the start time of the first time window is the start time of the COT.

As an embodiment, the first channel sensing operation includes performing energy detection on the first sub-band, the energy detection is used to determine whether the first sub-band is idle, and the frequency resource occupied by the second signaling belongs to the first sub-band.

As one embodiment, the implementer of the first channel sensing operation is the second node.

As an embodiment, the first channel sensing operation includes performing N5 energy detections in N5 time sub-pools, respectively, on the first sub-band, resulting in N5 detection values, N5 being a positive integer.

As an embodiment, the N5 energy detections respectively use the same multi-antenna correlation reception.

For one embodiment, the N5 energy detections are used to determine whether the first subband is Idle (Idle).

For one embodiment, the N5 energy detections are used to determine whether the first sub-band is usable by the first node to transmit wireless signals.

For one embodiment, the N5 energy detections are used to determine whether the first sub-band is usable by the first node to transmit wireless signals spatially correlated with the N5 energy detections.

As an embodiment, the first sub-band comprises a frequency range occupied by a positive integer number of RBs.

As an embodiment, the first sub-band comprises a BWP (bandwidth part).

For one embodiment, the first sub-band includes one carrier component cc (carrier component).

As an embodiment, the N5 energy detections are energy detections in LBT (Listen Before Talk, etc.), and the specific definition and implementation of the LBT are described in 3GPP TR 37.213.

As an embodiment, the N5 energy detections are energy detections in CCA (clear channel assessment), and the specific definition and implementation of the CCA are referred to in 3gpp tr 36.889.

As an embodiment, any one of the N5 energy detections is implemented by measuring RSSI (Received Signal Strength Indication).

As an embodiment, any one of the N5 time sub-pools is contiguous in occupied time domain resources.

As an embodiment, the N5 time sub-pools are mutually orthogonal (non-overlapping) two by two in the time domain.

As an example, the duration of any one of the N5 time sub-pools is one of {16 microseconds, 9 microseconds }.

As an embodiment, there are at least two of the N5 time sub-pools that are not equal in duration.

As an example, the duration of any two of the N5 time sub-pools is equal.

As an embodiment, the time domain resources occupied by the N5 time sub-pools are contiguous.

As an embodiment, there are at least two time sub-pools of the N5 time sub-pools that occupy time domain resources that are not contiguous.

As an embodiment, the time domain resources occupied by any two of the N5 time sub-pools are discontinuous.

As an embodiment, any one of the N5 time sub-pools is a slot period (slot).

As an embodiment, any of the N5 time sub-pools except the earliest time sub-pool is a slot period (slot duration).

As an embodiment, at least one time sub-pool with the duration of 16 microseconds exists in the N5 time sub-pools.

As an embodiment, at least one of the N5 time sub-pools has a duration of 9 microseconds.

As one example, the earliest of the N5 time sub-pools has a duration of 16 microseconds.

As an example, the latest time sub-pool of the N5 time sub-pools has a duration of 9 microseconds.

As an embodiment, the N5 time sub-pools include listen times in Cat 4 (fourth type) LBT.

As an embodiment, the N5 Time sub-pools include slot periods in a delay period (Defer Duration) and slot periods in a Backoff Time (Backoff Time) in Cat 4 (fourth type) LBT.

As an embodiment, the N5 Time sub-pools include a timeslot period in a delay period (deferrduration) in a Type 1UL channel access procedure (first Type uplink channel access procedure) and a timeslot period in a Backoff Time (Backoff Time), and the first node is a user equipment.

As an embodiment, the N5 time sub-pools include the initial CCA and the slot period in eCCA (enhanced clear channel assessment).

As an embodiment, the N5 energy detections respectively result in the N5 detection values.

As an embodiment, the N5 detection values are powers of all wireless signals sensed (Sense) by the second node on the first sub-band in N5 time units, respectively, and averaged over time to obtain a received power; the N5 time units are each one of the N5 time sub-pools of duration.

As a sub-embodiment of the above embodiment, the duration of any one time cell of the N5 time cells is not shorter than 4 microseconds.

As an embodiment, the N5 detection values are the energies of all wireless signals sensed (Sense) by the second node over the first sub-band in N5 time units, respectively, and averaged over time to obtain a received energy; the N5 time units are each one of the N5 time sub-pools of duration.

As an embodiment, any given energy detection out of the N5 energy detections refers to: the first node monitors received power in a given time unit, the given time unit being one of the N5 time sub-pools for a duration of time corresponding to the given energy detection.

As an embodiment, any given energy detection out of the N5 energy detections refers to: the first node monitors received energy in a given time unit, the given time unit being one of the N5 time sub-pools for a duration of time corresponding to the given energy detection.

Example 10

Embodiment 10 illustrates a schematic diagram of time domain resources respectively occupied by the second signaling, the first reference signal subset and the first information block according to an embodiment of the present application, as shown in fig. 10. In fig. 10, the first subset of reference signals is transmitted after the second signaling and the first information block is transmitted after the first subset of reference signals. The time resources occupied by the first subset of reference signals and the first information block are located within a first time window, the duration of which is denoted T1 in fig. 10.

As an embodiment, the start time of the first time window is an end time of a last multicarrier symbol used for transmitting the second signaling.

As an embodiment, the first information block comprises a number of bits related to the number of reference signals comprised by the first subset of reference signals.

As a sub-implementation of the foregoing embodiment, the first subset of reference signals includes N3 reference signals, the N3 is a positive integer, and the number of bits included in the first information block and the value of N3 change in the same direction.

As a sub-implementation of the foregoing embodiment, the first subset of reference signals includes N3 CSI-RS resources, the N3 is a positive integer, and the number of bits included in the first information block is related to a value of ceil (log2(N3)), where log2 represents a base-2 logarithm operation and ceil represents an ceiling operation.

As a sub-implementation of the above embodiment, the first subset of reference signals includes N3 CSI-RS resources, the N3 is a positive integer, the first information block includes an indication of CSI-RS resources, the indication of CSI-RS resources includes a number of bits equal to ceil (log2(N3)), where log2 represents a base-2 logarithm operation, and ceil represents an upward rounding operation.

As an embodiment, the time resource occupied by the first information block is located within a first time window.

Example 11

Embodiment 11 illustrates a schematic diagram of a relationship between a first channel-perceived spatial parameter, a spatial parameter of a reference signal and a transmission parameter of a first information block according to an embodiment of the present application, as shown in fig. 11. In fig. 11, an elliptical pattern is used to indicate the width of the beam. In fig. 11, the spatial parameter of the first channel sensing operation is related to the width of the receiving beam of the first channel sensing operation, the spatial parameter of the reference signal is related to the width of the transmitting beam of the reference signal, and the transmitting parameter of the first information block is related to the transmitting beam of the first information block. In fig. 11, the reception beam of the first channel sensing operation is a wide beam in which the widths of the transmission beams of the reference signals are included. LBT with a wide beam may reduce the total number of LBTs, thereby reducing overhead.

As one embodiment, the first channel sensing operation receives with a wide beam.

As an embodiment, the first spatial configuration information relates to spatial parameters of a first channel sensing operation.

As an embodiment, the spatial parameters indicated by the first spatial configuration information are the same as the spatial parameters of the first channel sensing operation.

As an embodiment, a beam coverage range corresponding to the spatial parameter indicated by the first spatial configuration information overlaps with a beam coverage range corresponding to the spatial parameter of the first channel sensing operation.

As one embodiment, the spatial parameters of the first channel sensing operation include a receive beam configuration of the first channel sensing operation.

As one embodiment, the spatial parameters of the first channel sensing operation comprise a spatial reception parameter configuration of the first channel sensing operation.

As one embodiment, the spatial parameters of the first channel-aware operation include a QCL association of reception behavior of the first channel-aware operation and one reference signal, the one reference signal being a CSI-RS resource or an SSB.

As an embodiment, the first spatial configuration information is used to determine a transmission parameter of the first information block.

As an embodiment, the first spatial configuration information is used to determine a candidate spatial parameter associated with an uplink channel.

As an embodiment, the first spatial configuration information is used to determine a candidate spatial parameter associated with a PUCCH.

As an embodiment, the first spatial configuration information is used to determine a candidate spatial parameter associated with PUSCH.

As an embodiment, the candidate spatial parameter associated with the uplink channel includes an SRI (Sounding Reference Signal Resource Indicator).

For one embodiment, the candidate spatial parameter associated with the uplink channel includes a TCI.

As an embodiment, the candidate spatial parameters associated with the uplink channel include a QCL association relationship with CSI-RS resources.

For one embodiment, the candidate spatial parameters associated with the uplink channel include a QCL association with an SSB.

As an embodiment, the transmission parameter of the first information block includes a spatial parameter associated with the first information block.

As an embodiment, the transmission parameter of the first information block includes a time-frequency resource occupied by the first information block.

As an embodiment, the transmission parameter of the first information block includes a PUCCH resource number associated with the first information block.

As an embodiment, the sentence "the first spatial configuration information is used to determine the transmission parameters of the first information block" includes that the first spatial configuration information includes indication information of the transmission parameters of the first information block.

As an embodiment, the sentence "the first spatial configuration information is used to determine the transmission parameters of the first information block" includes that the first spatial configuration information includes candidate spatial parameters associated with a plurality of the uplink channels, and the first node selects one of the candidate spatial parameters associated with the plurality of the uplink channels as the transmission parameter of the first information block.

As a sub-embodiment of the foregoing embodiment, the first node receives a selection rule indication, and the first node selects one of candidate spatial parameters associated with the plurality of uplink channels as a transmission parameter of the first information block according to the selection rule indication.

As a sub-embodiment of the foregoing embodiment, the first node selects one of the candidate spatial parameters associated with the plurality of uplink channels as the transmission parameter of the first information block according to a predefined selection rule.

As an embodiment, the first spatial configuration information relates to spatial parameters of a first channel sensing operation, the first channel sensing operation being used to determine whether a wireless signal can be transmitted on a first sub-band to which frequency domain resources occupied by the second signaling belong.

As an embodiment, the frequency domain resource occupied by the first information block belongs to a first sub-band.

Example 12

Embodiment 12 is a block diagram illustrating a processing apparatus used in a first node, as shown in fig. 12. In embodiment 12, a first node 1200 comprises a first receiver 1201, a second receiver 1202 and a first transmitter 1203.

For one embodiment, the first receiver 1201 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 of fig. 4, for example.

For one embodiment, second receiver 1202 may include at least one of antenna 452, transmitter/receiver 454, multi-antenna receive processor 458, receive processor 456, controller/processor 459, memory 460, and data source 467, shown in fig. 4 and described herein.

For one embodiment, the first transmitter 1203 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

In embodiment 12, the first receiver 1201 receives first signaling; the second receiver 1202 receives a second signaling; the first transmitter 1203 transmits a first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

For one embodiment, the first node 1200 is a user equipment.

As an embodiment, the first node 1200 is a relay node.

For one embodiment, the first node 1200 is a base station.

As an example, the first node 1200 is a vehicle communication device.

For one embodiment, the first node 1200 is a user equipment supporting V2X communication.

As an embodiment, the first node 1200 is a relay node supporting V2X communication.

As an embodiment, the first node 1200 is a base station device supporting IAB.

Example 13

Embodiment 13 is a block diagram illustrating a processing apparatus used in the second node, as shown in fig. 13. In fig. 13, a second node 1300 comprises a second transmitter 1301, a third transmitter 1302 and a third receiver 1303.

For one embodiment, the second transmitter 1301 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the third transmitter 1302 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna transmit processor 471, the transmit processor 416, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

For one embodiment, the third receiver 1303 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460, and the data source 467 shown in fig. 4.

In embodiment 13, the second transmitter 1301 transmits first signaling; the third transmitter 1302 sending a second signaling; the third receiver 1303 receives the first information block; wherein the first signaling comprises first configuration information, the first configuration information being used for determining Q1 spatial parameters respectively associated with Q1 reference signals, the Q1 being an integer greater than 1; the second signaling comprises first spatial configuration information used to determine a first subset of reference signals from the Q1 reference signals, the first subset of reference signals comprising a portion of the Q1 reference signals, the spatial parameters associated with each reference signal in the first subset of reference signals related to the first spatial configuration information; measurements for reference signals in the first subset of reference signals are used to determine the first information block.

As an embodiment, the first spatial configuration information is used to determine a plurality of candidate spatial parameters; the spatial parameter associated with any of the reference signals in the first subset of reference signals is one of the plurality of candidate spatial parameters.

For one embodiment, the third transmitter 1302 transmits first time configuration information, which is used to determine a first time window within which the first spatial configuration information is valid.

As an embodiment, the second node does not transmit any of the Q1 reference signals within the first time window that do not belong to the first subset of reference signals.

For one embodiment, the second node 1300 is a user equipment.

For one embodiment, the second node 1300 is a base station.

As an embodiment, the second node 1300 is a relay node.

As an embodiment, the second node 1300 is a user equipment supporting V2X communication.

As an embodiment, the second node 1300 is a base station device supporting V2X communication.

As an embodiment, the second node 1300 is a relay node supporting V2X communication.

As an embodiment, the second node 1300 is a base station device supporting IAB.

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

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

Claims

1. A first node configured for wireless communication, comprising:

a first receiver receiving a first signaling;

a second receiver receiving a second signaling;

a first transmitter for transmitting a first information block;

2. The first node of claim 1, wherein the first information block includes a number of bits related to a number of reference signals included in the first subset of reference signals.

3. The first node according to claim 1 or 2, characterized in that the first spatial configuration information is used for determining a plurality of candidate spatial parameters; the spatial parameter associated with any of the reference signals in the first subset of reference signals is one of the plurality of candidate spatial parameters.

4. The first node according to any of claims 1 to 3, wherein the second receiver receives first temporal configuration information, the first temporal configuration information being used to determine a first temporal window, the first spatial configuration information being valid within the first temporal window.

5. The first node according to any of claims 1 to 4, wherein the first spatial configuration information relates to spatial parameters of a first channel sensing operation used to determine whether a wireless signal can be transmitted on a first sub-band to which the frequency domain resources occupied by the second signaling belong.

6. The first node according to claim 4 or 5, characterized in that the first node assumes that any of the Q1 reference signals not belonging to the first subset of reference signals is not transmitted within the first time window.

7. The first node according to any of claims 1 to 6, wherein the first spatial configuration information is used for determining transmission parameters of the first information block.

8. A second node configured for wireless communication, comprising: