Methods and apparatus for wireless communication

Abstract

This invention discloses a method and apparatus for wireless communication. A first node receives first signaling, which configures a first RS resource and a plurality of time-frequency resources; performs a first channel measurement on the first RS resource, and performs a first interference measurement on at least one of the plurality of time-frequency resources; and transmits a first CSI; wherein the calculation of the first CSI depends on the first channel measurement and the first interference measurement; and the at least one time-frequency resource is determined by the first node itself. This application can ensure the performance of channel information while providing better scheduling flexibility.

Description

Technical Field

[0001] This application relates to methods and apparatus in wireless communication systems, and more particularly to schemes and apparatus for CSI (Channel Status Information) in wireless communication systems. Background Technology

[0002] In traditional wireless communication, the UE (User Equipment) may report at least one of various auxiliary information, such as CSI (Channel Status Information), beam management-related auxiliary information, positioning-related auxiliary information, etc. CSI includes CRI (Channel Status Information Reference Signal Resource Indicator), RI (Rank Indicator), PMI (Precoding Matrix Indicator), or CQI (Channel Quality Indicator), etc. Network equipment configures the resources required for the UE to calculate CSI. Depending on the type of CSI, the required resources may include CMR (Channel Measurement Resource) and IMR (Interference Measurement Resource), etc.

[0003] Generally, network devices in a cellular network system are deterministically configured or indicated with CMR and IMR, while the UE only needs to perform measurements and calculate CSI based on the CMR or IMR indicated by the network device. In NR (New Radio) systems, CMR used for channel measurement includes SSB (SS / PBCH block, Synchronization Signal / Physical Broadcast Channel Block) and NZP (Non-Zero Power) CSI-RS (Reference Signal) resources, while IMR used for interference measurement includes NZPCSI-RS resources and CSI-IM (Channel State Information – Interference Measurement) resources, etc.

[0004] Network devices select appropriate transmission parameters for the UE based on its reports, such as the cell to be camped, MCS (Modulation and Coding Scheme), TPMI (Transmitted Precoding Matrix Indicator), and TCI (Transmission Configuration Indication). Furthermore, UE reports can be used to optimize network parameters, such as improving cell coverage and switching base stations on / off based on the UE's location.

[0005] In NR (New Radio) systems, CSI reports are prioritized and used to determine whether to allocate CPU (CSI Processing Unit) resources to update a corresponding CSI report or to drop it.

[0006] Traditional radars utilize specific sensing waveforms such as CW (Continuous Wave), FMCW (Frequency Modulated Continuous Wave), and digital coding modulation to achieve sensing functions. As the frequencies of communication systems deployed and radar operating frequencies gradually overlap, the integration of communication and sensing technologies has become a hot research topic. Summary of the Invention

[0007] In traditional solutions, the UE determines the relevant resources for channel and interference measurements entirely according to the base station's instructions. However, the applicant's research has revealed that existing CSI reporting configuration methods may not be suitable for next-generation mobile communication systems. For example, with the introduction of Integrated Sensing and Communications (ISAC) or artificial intelligence, the UE may need to be more involved in resource management.

[0008] To address the aforementioned problems, this application discloses a solution. It should be noted that while many embodiments of this application focus on integrated communication and sensing, this application is also applicable to non-sensory communication fields; especially considering that specific CSI generation algorithms are likely non-standardized or implemented by hardware vendors themselves. Furthermore, adopting a unified UE (User Equipment) reporting scheme can reduce implementation complexity or improve performance. Where there is no conflict, embodiments and features in any node of this application can be applied to any other node. Where there is no conflict, embodiments and features in any embodiment of this application can be arbitrarily combined with each other.

[0009] Where necessary, the interpretation of terms used in this application may be referenced to the descriptions in the TS38 series of specification protocols of 3GPP (3rd Generation Partner Project).

[0010] This application discloses a method used in a first node for wireless communication, comprising:

[0011] Receive a first signaling, the first signaling configuring a first RS resource and a plurality of time-frequency resources; perform a first channel measurement for the first RS resource, and perform a first interference measurement for at least one of the plurality of time-frequency resources;

[0012] Send the first CSI;

[0013] The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

[0014] As an example, the above method allows the first node to determine the IMR itself for the indicated CMR, thereby enabling more flexible CSI calculation.

[0015] As an example, compared to reporting CSI separately for each of the plurality of time-frequency resources, the above method saves air interface overhead.

[0016] As an example, the selected at least one time-frequency resource is unknown to the sender of the first signaling.

[0017] As an example, the at least one time-frequency resource may include only one time-frequency resource.

[0018] As an example, the at least one time-frequency resource is L time-frequency resources, where L is configurable.

[0019] As an example, the first signaling configures the L.

[0020] Specifically, according to one aspect of this application, the interference corresponding to each of the plurality of time-frequency resources, excluding the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

[0021] The above method can ensure transmission reliability while improving the scheduling flexibility of the transmitter (second node) on the multiple time-frequency resources.

[0022] Specifically, according to one aspect of this application, the first signaling configuration of the second RS resource is used for interference measurement, the second RS resource being different from any of the plurality of time-frequency resources, and the first interference measurement including measurement of the second RS resource.

[0023] The above method allows the scheduler to perform more complex scheduling, such as simultaneously superimposing different types or purposes of interference signals on the signal sent to the first node, thereby improving spectrum utilization efficiency.

[0024] Typically, the second RS resource is used for the first interference measurement, which is known to the sender of the first signaling.

[0025] Specifically, according to one aspect of this application, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first CQI; assuming that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, the spectral efficiency of the obtained CQI is not lower than the spectral efficiency of the first CQI.

[0026] Specifically, according to one aspect of this application, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first SINR (Signal to Noise and Interference Ratio); it is assumed that any L time-frequency resources among the plurality of time-frequency resources are used for interference measurement, and the obtained SINR is not lower than the first SINR.

[0027] Specifically, according to one aspect of this application, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first interference power value; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, and the obtained interference power value is not greater than the first interference power value.

[0028] Typically, the interference power value is a linear value (in milliwatts) or a dB value (in millidodes).

[0029] Specifically, according to one aspect of this application, each of the at least one time-frequency resources occupies Q subcarriers within a multi-carrier symbol; the positions of the Q subcarriers depend on the first sensing waveform.

[0030] The above embodiments are conducive to maintaining a balance between the two needs of communication and sensing, and realizing the integration of communication and sensing.

[0031] As an example, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0032] As an example, the multicarrier symbol is the DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0033] As an example, the multi-carrier symbol is the FBMC (Filter Bank Multi Carrier) symbol.

[0034] As an example, multicarrier symbols include CP (Cyclic Prefix).

[0035] As an example, the first signaling indicates the Q.

[0036] As an example, the pattern formed by the Q subcarriers is predefined.

[0037] As an example, the Q subcarriers are defined by a table obtained based on the frequency domain characteristics of the first sensed waveform.

[0038] As an example, the Q subcarriers are defined by a formula that is derived based on the frequency domain characteristics of the first sensed waveform.

[0039] As an example, the Q subcarriers are the Q subcarriers with the highest energy corresponding to the first sensing waveform in the one multi-carrier symbol.

[0040] As an example, the Q subcarriers are composed of Q1 RBs (Resource Blocks) in the multi-carrier symbol, and the Q1 RBs are the Q1 RBs with the highest energy corresponding to the first sensing waveform in the multi-carrier symbol.

[0041] Specifically, according to one aspect of this application, it is characterized by comprising:

[0042] Receive a second signaling message, the second signaling message indicating the frequency of the first sensed waveform;

[0043] Wherein, the first sensing waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensing waveform.

[0044] As one embodiment, the second signaling is broadcast or multicast.

[0045] Compared to unicast signaling, the above signaling makes full use of the network-side sensing characteristics, which can save air interface overhead.

[0046] As one example, the second signaling indicates the Q.

[0047] This application discloses a method used in a second node for wireless communication, comprising:

[0048] Send a first signaling message, which configures a first RS resource and multiple time-frequency resources;

[0049] Receive the first CSI;

[0050] The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

[0051] Specifically, according to one aspect of this application, it is characterized by comprising:

[0052] Send a second signaling message, the second signaling message indicating the frequency of the first sensed waveform;

[0053] Wherein, the first sensing waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensing waveform.

[0054] This application discloses a first node used for wireless communication, comprising:

[0055] A first receiver receives a first signaling, the first signaling configuring a first RS resource and multiple time-frequency resources; performs a first channel measurement on the first RS resource, and performs a first interference measurement on at least one of the multiple time-frequency resources;

[0056] First transmitter, sends the first CSI;

[0057] The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

[0058] This application discloses a second node used for wireless communication, comprising:

[0059] The second transmitter sends a first signaling message, which configures a first RS resource and multiple time-frequency resources.

[0060] The second receiver receives the first CSI;

[0061] The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources. Attached Figure Description

[0062] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0063] Figure 1 A flowchart illustrating the communication of a first node according to an embodiment of this application is shown;

[0064] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0065] Figure 3 A schematic diagram of an embodiment of a radio protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0066] Figure 4 A schematic diagram of the hardware module of a communication node according to an embodiment of this application is shown;

[0067] Figure 5 A transmission flowchart between a first node and a second node according to an embodiment of this application is shown;

[0068] Figure 6 A schematic diagram of a first interference and a second interference according to an embodiment of this application is shown;

[0069] Figure 7 A schematic diagram of frequency domain cell sorting according to an embodiment of this application is shown;

[0070] Figure 8 A schematic diagram of signal transmission for a sensor-integrated system according to an embodiment of this application is shown;

[0071] Figure 9 A schematic diagram of interference symbols according to an embodiment of this application is shown;

[0072] Figure 10 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0073] Figure 11 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0074] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0075] Example 1

[0076] Example 1 illustrates a flowchart of communication of a first node according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown.

[0077] In step S101, the first node 100 receives a first signaling, which configures a first RS resource and multiple time-frequency resources; in step S102, it performs a first channel measurement on the first RS resource and performs a first interference measurement on at least one of the multiple time-frequency resources; and in step S103, it transmits a first CSI.

[0078] In Example 1, the calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

[0079] As an example, the first signaling is RRC (Radio Resource Control) signaling, for example, the first signaling belongs to an RRC IE (Information Element).

[0080] As an example, the name of the RRC IE includes CSI-ReportConfig.

[0081] As an example, the RRC IE is a CSI-ReportConfig IE.

[0082] As an example, the first RS resource is an SSB, or is indicated by an SSB-index.

[0083] As an example, the first RS resource is a CSI-RS resource, or it is configured by an NZP-CSI-RS-Resource.

[0084] In addition to the RS resources mentioned above, the first RS resource may also be CRS (Cell Reference Signal), etc.

[0085] As an example, the first signaling includes at least one MAC (Medium Access Control) CE (Control Element).

[0086] As an example, the first signaling includes a DCI (Downlink Control Information).

[0087] As an example, any one of the plurality of time-frequency resources can be configured to transmit a reference signal or to transmit a sensing signal.

[0088] As an example, any one of the plurality of time-frequency resources is periodic.

[0089] As an example, any one of the plurality of time-frequency resources occupies a plurality of REs (Resource Elements).

[0090] Typically, no single RE is occupied by any two of the multiple time-frequency resources.

[0091] As one embodiment, the plurality of time-frequency resources consists of no more than 192 time-frequency resources.

[0092] As one embodiment, the plurality of time-frequency resources consists of no more than 1024 time-frequency resources.

[0093] For CSI reporting, the specific implementation methods for channel measurement and interference measurement generally depend on the type of CSI being reported. For CSI types such as RSRP (Reference Signal Received Power) and RSRQ (Reference Signal Received Quality), the channel measurement method should follow the relevant definitions for the CSI type.

[0094] For CSI types such as SINR (Signal to Noise and Interference Ratio) and CQI, those skilled in the art should know that the methods for channel measurement and interference measurement depend on the receiver's receiving algorithm, which is determined by the receiver equipment manufacturer. The following uses CQI as an example to introduce a typical but non-limiting implementation:

[0095] The first node measures the RS in the first RS resource to obtain the original channel matrix H. r×t Where r and t are the number of receiving antennas and the number of antenna ports used for transmitting, respectively; when using the precoding matrix W t×l Under these conditions, the encoded channel parameter matrix is ​​H r×t ·W t×l Where l is the rank or the number of layers; H is calculated using criteria such as SINR (Signal Interference Noise Ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block Mean Mutual Information Ratio). r×t ·W t×l The equivalent channel capacity can be calculated by considering the noise and interference estimated by the first node, where the interference estimation depends on the measurement of time-frequency resources used for interference measurement. Typically, the measured interference may be colored; therefore, the first node can combine a receiver algorithm to whiten the measured interference and use the whitened interference to calculate the equivalent channel capacity.

[0096] The CQI of the first node is determined by the equivalent channel capacity through methods such as table lookup.

[0097] As an example, the at least one time-frequency resource is L time-frequency resources, where L is configured by downlink signaling, and the first node determines the L time-frequency resources from the plurality of time-frequency resources on its own.

[0098] As an example, the first node can employ different strategies to determine the at least one time-frequency resource to achieve different transmission effects; these strategies can be implementation-dependent (i.e., do not require standardization). Possible selection strategies include: the first node randomly selecting the at least one time-frequency resource from the plurality of time-frequency resources, the first node taking turns selecting the at least one time-frequency resource from the plurality of time-frequency resources, the at least one time-frequency resource being composed of the time-frequency resource that causes the least interference from the plurality of time-frequency resources, etc.

[0099] In addition to the above-described implementation methods, as artificial intelligence or machine learning algorithms are introduced into the NR standard, the first node can also use artificial intelligence or machine learning algorithms to determine at least one time-frequency resource from the plurality of time-frequency resources.

[0100] As an example, the first CSI is transmitted on PUSCH (Physical Uplink Shared Channel).

[0101] As an example, the first CSI is transmitted on the PUCCH (Physical Uplink Control Channel).

[0102] As an example, any two of the plurality of time-frequency resources are orthogonal in the time domain.

[0103] As one embodiment, the first CSI indication corresponds to a narrowband (subband) channel information, or the first CSI indication corresponds to a BWP (Bandwidth Part) channel information.

[0104] Example 2

[0105] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2The system architectures of 5G NR (New Radio), LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) are described. The 5G NR or LTE network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System) or some other suitable term. EPS 200 may include a UE (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet service 230. EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE 201. gNB 203 can connect to other gNBs 204 via the Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP, or some other suitable term. gNB 203 provides UE 201 with access to EPC / 5G-CN 210. Examples of UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, GPS, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similarly functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. gNB203 is connected to EPC / 5G-CN 210 via the S1 / NG interface.EPC / 5G-CN 210 includes MME (Mobility Management Entity), AMF (Authentication Management Field), UPF (User Plane Function) 211, other MME / AMF / UPF 214, S-GW (Service Gateway) 212, and P-GW (Packet Data Network Gateway) 213. It should be noted that... (The rest of the text is missing). Figure 2 The 5G-CN in the core network can also be replaced by future modules such as the 6G core network. The MME / AMF / UPF211 is the control node that handles signaling between UE201 and EPC / 5G-CN 210. Generally, the MME / AMF / UPF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW212, which is itself connected to P-GW213. P-GW213 provides UE IP address allocation and other functions. P-GW213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0106] As an example, UE201 corresponds to the first node in this application, and gNB203 corresponds to the second node in this application.

[0107] As an example, the gNB203 supports integrated sensing.

[0108] As an example, the UE201 supports generating CSI using AI (Artificial Intelligence) or Machine Learning, and the gNB203 supports decompressing CSI using AI or Deep Learning.

[0109] As an example, the UE201 supports generating a trained model using training data or generating some parameters in a trained model using training data; or, the UE201 supports determining at least some parameters of a CNN (Conventional Neural Networks) used for CSI reconstruction through training.

[0110] As an example, the gNB203 is a macrocell base station, a microcell base station, a picocell base station, a femtocell, or a satellite device.

[0111] As an example, the gNB203 is a base station device that supports large latency differences.

[0112] As one example, the gNB203 is a flight platform device.

[0113] As an example, the first node and the second node in this application are the UE201 and the gNB203, respectively.

[0114] Example 3

[0115] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first node device (UE or RSU in V2X, onboard equipment or onboard communication module) and the second node device (gNB, UE or RSU in V2X, onboard equipment or onboard communication module), or between two UEs, is illustrated using 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. L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first node device and the second node device, as well as between the two UEs, through PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. PDCP sublayer 304 provides data encryption and integrity protection, and also supports cross-regional movement from the first node device to the second node device. RLC sublayer 303 provides packet segmentation and reassembly, implements retransmission of lost packets via ARQ, and also provides duplicate packet detection and protocol error detection. MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among the first node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node device and the first node device. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first and second node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support service diversity.Although not illustrated, the first node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.).

[0116] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0117] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0118] As an example, the reference signal in this application is generated in the PHY301.

[0119] As an example, the first CSI in this application is generated in the PHY301.

[0120] As an example, the first signaling in this application is generated in the MAC sublayer 302.

[0121] As an example, the first CQI in this application is generated in the PHY301.

[0122] As an example, the first signaling in this application is generated in the RRC sublayer 306.

[0123] As an example, the second signaling in this application is generated in the RRC sublayer 306.

[0124] As an example, the second signaling in this application is generated in the MAC sublayer 302 or in the PHY 301.

[0125] Example 4

[0126] Example 4 illustrates a hardware module schematic diagram of a communication node according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0127] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0128] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0129] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs channel coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0130] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then deinterleaves and decodes the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the second node 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0131] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs channel coding, interleaving, and modulation mapping. Multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0132] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0133] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: receives first signaling, the first signaling configuring a first RS resource and a plurality of time-frequency resources; performs a first channel measurement for the first RS resource, performs a first interference measurement for at least one of the plurality of time-frequency resources; and transmits a first CSI; wherein the calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first communication device 450 itself.

[0134] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, generates actions including: receiving first signaling that configures a first RS resource and a plurality of time-frequency resources; performing a first channel measurement for the first RS resource and performing a first interference measurement for at least one of the plurality of time-frequency resources; and transmitting a first CSI; wherein the calculation of the first CSI depends on the first channel measurement and the first interference measurement; and the at least one time-frequency resource is determined by the first communication device 450 itself.

[0135] As one embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: transmits first signaling, the first signaling configuring a first RS resource and a plurality of time-frequency resources; receives a first CSI; wherein the calculation of the first CSI depends on a first channel measurement and a first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

[0136] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first signaling that configures a first RS resource and a plurality of time-frequency resources; receiving a first CSI; wherein the calculation of the first CSI depends on a first channel measurement and a first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

[0137] As an example, the first communication device 450 corresponds to the first node in this application, and the second communication device 410 corresponds to the second node in this application.

[0138] As an example, the first communication device 450 is a UE, and the second communication device 410 is a base station.

[0139] As one embodiment, the antenna 452, the receiver 454, the multi-antenna receiver processor 458, and the receiver processor 456 are used for channel measurement and interference measurement.

[0140] As one example, the controller / processor 459 is used for channel measurement and interference measurement.

[0141] As an example, the controller / processor 459 is used to generate the first CSI.

[0142] As one embodiment, the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmitter processor 468, and the controller / processor 459 are used to transmit the first CSI.

[0143] As one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 are used to transmit a reference signal on the first RS resource.

[0144] As one embodiment, the controller / processor 475 is used to transmit a reference signal on the first RS resource.

[0145] As one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, and the transmission processor 416 are used to transmit sensing signals on the plurality of time-frequency resources.

[0146] As one embodiment, the controller / processor 475 is used to transmit sensing signals on the plurality of time-frequency resources.

[0147] As an example, the antenna 420, the receiver 418, the multi-antenna receiver processor 472, the receiver processor 470, and the controller / processor 475 are used to receive the first CSI.

[0148] Example 5

[0149] Example 5 illustrates a transmission flowchart between a first node and a second node according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. (Attached) Figure 5 In this context, the second signaling is optional.

[0150] For the first node N1, in step S100, a first signaling is received, which configures a first RS resource and multiple time-frequency resources; a first channel measurement is performed on the first RS resource, and a first interference measurement is performed on at least one of the multiple time-frequency resources; in step S101, a first CSI is sent; wherein, the at least one time-frequency resource is determined by the first node itself;

[0151] For the second node N2, the first signaling is sent in step S200, and the first CSI is received in step S200; the at least one time-frequency resource is unknown to the second node N2;

[0152] In Example 5, the calculation of the first CSI depends on the first channel measurement and the first interference measurement.

[0153] As an example, the interference corresponding to each of the plurality of time-frequency resources, except for the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

[0154] The above embodiment is equivalent to the reported CSI reflecting the worst channel condition, which can ensure transmission reliability and provide the second node with maximum scheduling flexibility.

[0155] As a sub-implementation of the above embodiment, the second node N2 transmits a wireless signal to the first node N1 on the first physical layer channel. The scheduling information of the first physical layer channel (e.g., MCS, the time-frequency resources occupied, the number of multiple-input multiple-output MIMO layers occupied, etc.) depends on the first CSI. As long as the interference superimposed on the first physical layer channel does not exceed the interference level caused by any L time-frequency resources among the plurality of time-frequency resources, the reception quality of the first physical layer channel can be guaranteed.

[0156] As an example, L is 1.

[0157] As an example, L is configured by the first signaling.

[0158] As an example, L is configured with dynamic sensing signaling.

[0159] As an example, the first signaling configuration of the second RS resource is used for interference measurement. The second RS resource is different from any of the plurality of time-frequency resources. The first interference measurement includes measurements for the second RS resource.

[0160] In the above embodiments, the calculation of the first CSI depends on the interference measured on the second RS resource and the interference measured on the at least one time-frequency resource. The interference on the second RS resource and the interference on the at least one time-frequency resource may represent different interference sources, thereby providing the network device with greater scheduling flexibility; for example, the interference on the second RS resource may originate from interference between multiple users, while the interference on the at least one time-frequency resource may originate from sensing signals. It should be noted that those skilled in the art will understand that how to use interference to transmit wireless signals can be determined by the network device itself, and is not limited to the above-described uses.

[0161] As an example, the calculation of the first CSI depends on the sum of the interference measured on the second RS resource and the interference measured on the at least one time-frequency resource.

[0162] As an example, the calculation of the first CSI depends on the sum of the interference and superimposed interference measured on the second RS resource, wherein the superimposed interference depends on the interference measured on the at least one time-frequency resource.

[0163] As an example, the superimposed interference is the interference measured on the at least one time-frequency resource multiplied by a coefficient, the coefficient being a positive integer not less than 0 and not greater than 1.

[0164] As an example, the coefficient is either explicitly indicated by the second node via signaling, or implicitly indicated by the second node via signaling (i.e., inferred from other parameters indicated by signaling).

[0165] In the above embodiments, the second node or network device can adjust according to parameters such as the purpose of the at least one time-frequency resource or the number of REs occupied, so as to achieve more flexible resource scheduling.

[0166] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first CQI; assuming that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, the spectral efficiency of the obtained CQI is not lower than the spectral efficiency of the first CQI.

[0167] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first SINR; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are used for interference measurement, and the obtained SINR is not lower than the first SINR.

[0168] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first interference power value; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, and the obtained interference power value is not greater than the first interference power value.

[0169] As an example, the interference corresponding to each of the plurality of time-frequency resources, except for the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

[0170] As an example, each of the at least one time-frequency resources occupies Q subcarriers within a multi-carrier symbol; the positions of the Q subcarriers depend on the first sensing waveform.

[0171] The fact that the positions of the Q subcarriers depend on the first sensing waveform does not mean that the Q subcarriers must be determined in real time based on the first sensing waveform. They can also be determined using a predefined method, where the predefined process takes into account the characteristics of the first sensing waveform. Below are some possible implementation methods.

[0172] As an example, the pattern formed by the Q subcarriers is predefined.

[0173] As an example, the Q subcarriers are defined by a table, the table being created based on the frequency domain characteristics of the first sensed waveform.

[0174] As an example, the Q subcarriers are defined by a formula that is derived based on the frequency domain characteristics of the first sensed waveform.

[0175] As one embodiment, the Q subcarriers are the Q subcarriers with the highest energy corresponding to the first sensing waveform in the multi-carrier symbol. A typical generation method includes performing a Fast Fourier Transform on the time-domain signal of the first sensing waveform, and the subcarriers corresponding to the Q frequency-domain signals with the highest energy in the resulting frequency-domain signal are the Q subcarriers.

[0176] As an example, the Q subcarriers are composed of Q1 RBs in the multi-carrier symbol, and the Q1 RBs are the Q1 RBs with the highest energy corresponding to the first sensing waveform in the multi-carrier symbol.

[0177] As an example, the first signaling indicates the Q.

[0178] As an example, the first node N1 receives a second signaling in step S100, the second signaling indicating the frequency of the first sensing waveform; the second node N2 sends the second signaling in step S200; wherein the first sensing waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensing waveform.

[0179] As an example, the first sensing waveform is an FMCW, and the frequency of the first sensing waveform is the chirp of the FMCW. In β, t is time and τ is the duration of a single chirp transmission.

[0180] As an example, the first sensing waveform is an FMCW, and the frequency of the first sensing waveform includes the chirp of the FMCW, i.e., e jπ(βt+ω)t / τ In the equation β and ω, t is time and τ is the duration of a single chirp transmission.

[0181] As an example, the first sensing waveform is a single-frequency continuous wave cos(2πft), and the frequency of the first sensing waveform is f.

[0182] As an example, the second signaling is RRC signaling.

[0183] As an example, the second signaling is DCI (Downlink Control Information).

[0184] As an example, the first signaling and the second signaling are RRC signaling and DCI, respectively.

[0185] As a sub-implementation of the above embodiments, the second signaling is non-unicast (e.g., broadcast, multicast, or multicast).

[0186] As a sub-implementation of the above embodiments, the second signaling is used for Downlink Grant (DCI).

[0187] As an example, the first sensed waveform is a single-frequency continuous wave.

[0188] As an example, the first sensing waveform is FMCW.

[0189] Example 6

[0190] Example 6 illustrates a schematic diagram of a first interference and a second interference according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown.

[0191] In Example 6, the second node transmits a wireless signal to the first node on the first physical layer channel. The scheduling information of the first physical layer channel (e.g., MCS, the time and frequency resources occupied, or the number of multiple-input multiple-output MIMO layers occupied, etc.) depends on the first CSI (the specific scheduling algorithm is determined by the network device or scheduler itself, such as common proportional fairness, greedy criterion, etc.).

[0192] As attached Figure 6 As shown, in the process of calculating the first CSI, the first node assumes that the interference experienced on the first physical layer channel includes a first interference and a second interference; the first node obtains the second interference based on a measurement of the second RS resource, and obtains the first interference based on a measurement of at least one of the plurality of time-frequency resources; the total power of the first interference and the second interference is used to calculate the first CSI.

[0193] As an example, the first node assumes that the first interference and the first physical layer channel only interact with each other for a portion of the time. Figure 6 The interference overlaps on the multi-carrier symbols in the plurality of time-frequency resources, and the second interference completely overlaps with the first physical layer channel in terms of time resources. Therefore, the first interference is the interference power value measured for at least one of the plurality of time-frequency resources multiplied by a coefficient, which is configurable or predefined to reflect the duty cycle of the multi-carrier symbols in the plurality of time-frequency resources.

[0194] For the second node, as long as the interference from the superimposed wireless signal on the first physical layer channel does not exceed the total power of the first and second interferences, the reception quality of the first physical layer channel can be guaranteed. The wireless signal corresponding to the second interference may be a physical layer channel between other users besides the first node, or a wireless signal of another MIMO layer; the wireless signal corresponding to the first interference may be a signal for a specific purpose, such as a sensing waveform, a reference signal between base stations, or a backhaul signal between base stations. For different multi-carrier symbols with interference, the second node can use different transmission beams to improve transmission efficiency.

[0195] As an example, the first physical layer channel is PDSCH (Physical Downlink Shared Channel).

[0196] As an example, the first physical layer channel is PDCCH (Physical Downlink Control Channel).

[0197] As an example, the transport channel mapped by the first physical layer channel is DL-SCH (Downlink Shared Channel).

[0198] Example 7

[0199] Example 7 illustrates a schematic diagram of frequency domain cell sorting according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. (Attached) Figure 7 In the diagram, frequency domain cell indices 0, 1, ..., N-1 identify N frequency domain cells arranged in ascending order of frequency, and the occupancy indices corresponding to these N frequency domain cells are i0, i1, ..., i... N-1 The occupancy index is a non-negative integer and any two frequency domain units have different occupancy indices.

[0200] In Example 7, frequency domain cells with smaller (or larger) occupancy indices are preferentially occupied by at least one time-frequency resource in this application, and the determination of the occupancy index depends on the power (or amplitude) of the first sensing waveform in the corresponding frequency domain cell.

[0201] As an example, the greater the power of the first sensed waveform in a frequency domain unit, the smaller (or larger) the corresponding occupancy index.

[0202] As an example, the N frequency domain units are each N consecutive subcarriers in a multicarrier symbol.

[0203] As a sub-implementation of the above embodiments, the multi-carrier symbol is an OFDM symbol, and N is the size of the fast Fourier transform.

[0204] As one embodiment, the N frequency domain units are respectively N consecutive resource blocks (RBs) in a multi-carrier symbol.

[0205] As an example, the Q subcarriers in this application are all the subcarriers in the frequency domain cells corresponding to the smallest (or largest) Q occupied indices among the N frequency domain cells.

[0206] As a sub-implementation of the above embodiment, under the condition that Q is indicated, the Q subcarriers query the attached Figure 7 The table in the document can be used to determine this.

[0207] As an example, the Q subcarriers in this application are all subcarriers excluded from being used for the reference signal in the frequency domain cells corresponding to the smallest (or largest) Q occupancy indices among the N frequency domain cells.

[0208] As an example, the frequency domain positions of the N frequency domain units in the multicarrier symbol are indicated by the second signaling.

[0209] As a sub-implementation of the above embodiment, the second signaling indicates the frequency domain position of the center frequency of the N frequency domain units in the multi-carrier symbol.

[0210] As a sub-implementation of the above embodiment, the second signaling indicates the index of the frequency domain unit with the lowest frequency among the N frequency domain units in the frequency domain units included in the multi-carrier symbol.

[0211] As an example, the first sensing waveform is an FMCW, and the center frequency of the N frequency domain units is the chirp of the FMCW, i.e., e. jπ(βt+ω)t / τ In the ω, t is time and τ is the duration of a single chirp transmission.

[0212] Example 8

[0213] Example 8 illustrates a schematic diagram of signal transmission for a sensor-integrated system according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0214] In Example 8, the second node sends a first wireless signal, which includes a sensing waveform for sensing and a modulation symbol for communication; the first wireless signal reaches the first node via link L12, and the first node receives the modulation symbol for communication; the first wireless signal reaches the sensing target via link L10 and is reflected back to the second node via link L11, and the second node senses parameters of the sensing target, such as movement speed and / or position, based on the sensing waveform in the first wireless signal.

[0215] As an example, the sensing waveform for sensing and the modulation symbols for communication are both transmitted in time-frequency resources scheduled to a physical layer channel.

[0216] As an example, the sensing waveform used for sensing and the modulation symbol used for communication occupy different subcarriers.

[0217] As an example, at least one OFDM symbol is simultaneously occupied by the sensing waveform used for sensing and the modulation symbol used for communication.

[0218] As a sub-example of the above embodiment, the sensing waveform for sensing and the modulation symbol for communication on the at least one OFDM symbol correspond to transmission beams in different directions.

[0219] As an example, the second node ensures that the interference of the sensing waveform used for sensing to the modulation symbols used for communication does not exceed the interference measured on at least one time-frequency resource in this application.

[0220] Appendix Figure 8 The receiver for sensing waveforms can also be deployed in other receiving devices outside the second node, such as other base stations, etc.

[0221] Example 9

[0222] Example 9 illustrates a schematic diagram of interference symbols according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown. (Attached) Figure 9 In the diagram, each square represents a multicarrier symbol, with gray-filled squares representing multicarrier symbols experiencing interference.

[0223] In Example 9, interference exists only on some multi-carrier symbols. Therefore, the interference power (linear value) measured for the at least one time-frequency resource is multiplied by a coefficient and used to calculate the first CSI; the coefficient is no greater than 1.

[0224] One of the aforementioned coefficients can be explicitly indicated by the second node, or implicitly indicated by parameters such as resource scheduling.

[0225] As an example, the second node periodically transmits sensing waveforms (e.g., chirp waves) on multi-carrier symbols where interference exists, but does not transmit sensing waveforms on multi-carrier symbols where there is no interference.

[0226] As an example, for each interfering multicarrier symbol, the interference exists for the entire duration, and the coefficient is 1 / 3.

[0227] As an example, for each interfering multicarrier symbol, the interference exists only for a portion of the duration, and the coefficient is less than 1 / 3, or equal to the duty cycle of the interference time.

[0228] It should be noted that the appendix Figure 9 The 1 / 3 duty cycle is only a non-limiting embodiment. During the sensing process, the second node can adjust the duty cycle itself according to the required sensing resolution.

[0229] Example 10

[0230] Example 10 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 10 As shown. In the appendix Figure 10 In the first node, the processing device 1600 includes a first receiver 1601 and a first transmitter 1602.

[0231] The first receiver 1601 receives a first signaling, which configures a first RS resource and multiple time-frequency resources; performs a first channel measurement on the first RS resource and performs a first interference measurement on at least one of the multiple time-frequency resources; the first transmitter 1602 transmits a first CSI.

[0232] In Example 10, the calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

[0233] As an example, the interference corresponding to each of the plurality of time-frequency resources, except for the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

[0234] As an example, the first signaling configuration of the second RS resource is used for interference measurement. The second RS resource is different from any of the plurality of time-frequency resources. The first interference measurement includes measurements for the second RS resource.

[0235] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first CQI; assuming that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, the spectral efficiency of the obtained CQI is not lower than the spectral efficiency of the first CQI.

[0236] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first SINR; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are used for interference measurement, and the obtained SINR is not lower than the first SINR.

[0237] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first interference power value; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, and the obtained interference power value is not greater than the first interference power value.

[0238] As an example, each of the at least one time-frequency resources occupies Q subcarriers within a multi-carrier symbol; the positions of the Q subcarriers depend on the first sensing waveform.

[0239] As one embodiment, the first receiver 1601 receives a second signaling, the second signaling indicating the frequency of the first sensed waveform; wherein the first sensed waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensed waveform.

[0240] As an example, the first node 1600 is a user equipment.

[0241] As one embodiment, the first transmitter 1602 includes the appendix to this application. Figure 4 The antenna 452, transmitter / receiver 454, multi-antenna transmitter processor 457, transmitter processor 468, controller / processor 459, memory 460, and data source 467 are at least one of them.

[0242] As one embodiment, the first transmitter 1602 includes the appendix to this application. Figure 4 The components include antenna 452, transmitter / receiver 454, multi-antenna transmitter processor 457, transmitter processor 468, controller / processor 459, memory 460, and data source 467.

[0243] As one embodiment, the first receiver 1601 includes the appendix to this application. Figure 4 The antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467 are at least the first five of the following:

[0244] As one embodiment, the first receiver 1601 includes the appendix to this application. Figure 4 At least four of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0245] As one embodiment, the first receiver 1601 includes the appendix to this application. Figure 4 At least three of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0246] Example 11

[0247] Example 11 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 11 As shown. In the appendix Figure 11 In the second node, the processing device 1700 includes a second transmitter 1701 and a second receiver 1702.

[0248] The second transmitter 1701 sends a first signaling message, which configures a first RS resource and multiple time-frequency resources; the second receiver 1702 receives the first CSI.

[0249] In Example 11, the calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

[0250] As one embodiment, the second transmitter 1701 transmits a second signaling, the second signaling indicating the frequency of the first sensed waveform; wherein the first sensed waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensed waveform.

[0251] As an example, the interference corresponding to each of the plurality of time-frequency resources, except for the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

[0252] As an example, the first signaling configuration of the second RS resource is used for interference measurement. The second RS resource is different from any of the plurality of time-frequency resources. The first interference measurement includes measurements for the second RS resource.

[0253] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first CQI; assuming that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, the spectral efficiency of the obtained CQI is not lower than the spectral efficiency of the first CQI.

[0254] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first SINR; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are used for interference measurement, and the obtained SINR is not lower than the first SINR.

[0255] As an example, the at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first interference power value; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, and the obtained interference power value is not greater than the first interference power value.

[0256] As an example, each of the at least one time-frequency resources occupies Q subcarriers within a multi-carrier symbol; the positions of the Q subcarriers depend on the first sensing waveform.

[0257] As one embodiment, the second receiver 1702 receives the sensing waveform to realize the sensing of the target.

[0258] As one example, the second node 1700 is a base station device.

[0259] As one embodiment, the second transmitter 1701 includes the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475.

[0260] As one embodiment, the second transmitter 1701 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller / processor 475.

[0261] As one embodiment, the second transmitter 1701 includes the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475.

[0262] As one embodiment, the second transmitter 1701 includes the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller / processor 475.

[0263] As one embodiment, the second receiver 1702 includes the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, and the controller / processor 475.

[0264] As one embodiment, the second receiver 1702 includes the controller / processor 475.

[0265] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0266] Those skilled in the art will understand that this application may be implemented in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node for use in wireless communication, wherein, include: A first receiver receives a first signaling message, which configures a first RS resource and multiple time-frequency resources. Perform a first channel measurement on the first RS resource, and perform a first interference measurement on at least one of the plurality of time-frequency resources; First transmitter, sends the first CSI; The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

2. The first node according to claim 1, characterized in that, The interference corresponding to each of the plurality of time-frequency resources, except for the at least one time-frequency resource, does not exceed the interference corresponding to any one of the at least one time-frequency resources.

3. The first node according to claim 1 or 2, characterized in that, The first signaling configuration configures the second RS resource for interference measurement. The second RS resource is different from any of the plurality of time-frequency resources. The first interference measurement includes measurements for the second RS resource.

4. The first node according to any one of claims 1 to 3, characterized in that, The at least one time-frequency resource is L time-frequency resources, and the first CSI includes the first CQI; assuming that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, the spectral efficiency of the obtained CQI is not lower than the spectral efficiency of the first CQI.

5. The first node according to any one of claims 1 to 3, characterized in that, The at least one time-frequency resource is L time-frequency resources, and the first CSI includes the first SINR; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are used for interference measurement, and the obtained SINR is not lower than the first SINR.

6. The first node according to any one of claims 1 to 3, characterized in that, The at least one time-frequency resource is L time-frequency resources, and the first CSI includes a first interference power value; it is assumed that any L time-frequency resources among the plurality of time-frequency resources are applied to interference measurement, and the obtained interference power value is not greater than the first interference power value.

7. The first node according to any one of claims 1 to 6, characterized in that, Each of the at least one time-frequency resource occupies Q subcarriers within a multi-carrier symbol; the position of the Q subcarriers depends on the first sensing waveform.

8. The first node according to claim 7, characterized in that, include: The first receiver receives a second signaling, the second signaling indicating the frequency of the first sensed waveform; Wherein, the first sensing waveform is a frequency-modulated wave, and the positions of the Q subcarriers depend on the frequency of the first sensing waveform.

9. Used as a second node for wireless communication, wherein, include: The second transmitter sends a first signaling message, which configures a first RS resource and multiple time-frequency resources. The second receiver receives the first CSI; The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

10. A method used in the first node of wireless communication, wherein, include: Receive a first signaling message, the first signaling message configuring a first RS resource and multiple time-frequency resources; Perform a first channel measurement on the first RS resource, and perform a first interference measurement on at least one of the plurality of time-frequency resources; Send the first CSI; The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is determined by the first node itself.

11. A method used in a second node of wireless communication, wherein, include: Send a first signaling message, which configures a first RS resource and multiple time-frequency resources; Receive the first CSI; The calculation of the first CSI depends on the first channel measurement and the first interference measurement; the at least one time-frequency resource is unknown to the second node; the first channel measurement is performed based on the first RS resource, and the first interference measurement is performed based on at least one of the plurality of time-frequency resources.

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