Reference signals using different types of time units in wireless communications

Abstract

This document generally relates to wireless communications involving a user equipment that receives at least one first reference signal in at least one first time unit of a first type and at least one second reference signal in at least one second time unit of a second type; and performs at least one operation based on the at least one first reference signal and the at least one second reference signal in combination with or independently of each other. Further, a network equipment transmits the at least one first reference signal and the at least one second reference signal to the user equipment; and receives a report associated with the at least one operation performed by the user equipment based on the at least one first reference signal and the at least one second reference signal in combination with or independently of each other.

Description

Technical Field

[0001] This document generally relates to reference signals used in wireless communications that are transmitted in different types of time units. Background Technology

[0002] Wireless communication systems involving mobile communication technologies (e.g., fifth-generation (5G) or further sixth-generation (6G)) are facing increasing demands, including the implementation of enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and / or massive machine-type communication (mMTC). To meet these demands, full-duplex schemes can be implemented to improve the efficiency of communication systems.

[0003] Furthermore, wireless communication systems deploying commercial New Radio (NR) can achieve Time Division Duplex (TDD). In TDD, time-domain resources are allocated between the downlink and uplink. However, allocating limited duration for the uplink in TDD can lead to reduced coverage, increased latency, and decreased capacity. Simultaneous transmission in both the uplink and downlink directions (i.e., full-duplex) can overcome these challenges. However, the downlink (DL) reference signal cannot be transmitted in the uplink (UL) subband. Therefore, in implementations supporting non-overlapping subband full-duplex on TDD carriers, a method for handling downlink signals is desired. Summary of the Invention

[0004] This document relates to methods, systems, apparatuses, and devices for wireless communication. In some implementations, a method for wireless communication includes: receiving at least one first reference signal by a user equipment in at least one first time unit of a first type, and receiving at least one second reference signal in at least one second time unit of a second type; and performing at least one operation by the user equipment based on at least one first reference signal and at least one second reference signal, either combined or independent of each other.

[0005] In some other implementations, a method for wireless communication includes: a network device transmitting at least one first reference signal to a user equipment in at least one first time unit of a first type and at least one second reference signal in at least one second time unit of a second type; and the network device receiving a report associated with at least one operation performed by the user equipment based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other.

[0006] In some other implementations, a device, such as a network device, is disclosed. This device may include one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any of the methods described above.

[0007] In some other implementations, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable program medium having computer code stored thereon, which, when executed by one or more processors, causes the one or more processors to implement any of the methods described above.

[0008] The above and other aspects and their implementations are described in more detail in the accompanying drawings, description and claims. Attached Figure Description

[0009] Figure 1 A block diagram of an example wireless communication system is shown.

[0010] Figure 2 A schematic diagram of subband non-overlapping full-duplex (SBFD) operation on multiple downlink (D), flexible (F), and uplink (U) symbols is shown.

[0011] Figure 3 A flowchart of a method for wireless communication is shown.

[0012] Figure 4 A flowchart of another method for wireless communication is shown.

[0013] Figure 5 A time series diagram of example PMI calculation and reporting is shown.

[0014] Figure 6 A timing diagram is shown for another example of PMI calculation and reporting using Channel State Information (CSI)-Reference Signal (RS) for prediction on both SBFD and non-SBFD time units.

[0015] Figure 7 A time series diagram is shown as another example of PMI calculation and reporting using CSI-RS for forecasting on both SBFD and non-SBFD time units.

[0016] Figure 8 A time series diagram is shown as another example of PMI calculation and reporting using CSI-RS for forecasting on both SBFD and non-SBFD time units.

[0017] Figure 9 A schematic diagram of the model inputs and outputs of an artificial intelligence (AI) and / or machine learning (ML) model is shown.

[0018] Figure 10 This diagram illustrates how separate beam sets for SBFD and non-SBFD time units are fed into an AI / ML model to output a predicted beam set shared by SBFD and non-SBFD time units.

[0019] Figure 11 This diagram illustrates the prediction beamsets of AI / ML models that provide a beamset shared by SBFD and non-SBFD time units respectively to SBFD and non-SBFD time units.

[0020] Figure 12 A schematic diagram is shown showing how separate beam sets for SBFD and non-SBFD time units are fed into a single AI / ML model to output separate predicted beam sets for SBFD and non-SBFD time units.

[0021] Figure 13 This diagram illustrates how separate beamsets for SBFD and non-SBFD time units are fed into their respective AI / ML models to output separate predicted beamsets for SBFD and non-SBFD time units.

[0022] Figure 14 This diagram illustrates an example of multi-cell scheduling in a primary cell (PCell) and multiple secondary cells (SCells) using a single downlink control information (DCI) with a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH).

[0023] Figure 15 This diagram illustrates another example of multi-cell scheduling in a primary cell (PCell) and multiple secondary cells (SCells) via a single DCI with PDCCH and PDSCH.

[0024] Figure 16 The timing diagram shows the PDSCH transmission and the associated Hybrid Automatic Response Request (HARQ) - Acknowledgment (ACK) feedback. Detailed Implementation

[0025] This specification describes various embodiments of systems, apparatuses, devices, and methods for determining effective transmission resources related to wireless communication.

[0026] Figure 1 A schematic diagram of an example wireless communication system 100 is shown, which includes a plurality of communication nodes (or nodes only) configured to communicate wirelessly with each other. Typically, the communication nodes include at least one user equipment 102 and at least one network device 104. Figure 1 The example wireless communication system 100 is shown as including two user equipments 102 (including a first user equipment 102 (1) and a second user equipment 102 (2)) and a device 104. However, various other examples of wireless communication systems 100 including any of various combinations of one or more user equipments 102 and / or one or more network devices 104 are possible.

[0027] Generally, user equipment described herein, such as user equipment 102, may include a single electronic device or apparatus capable of wireless communication over a network, or multiple (e.g., network-wide) electronic devices or apparatuses. User equipment may include, or be otherwise referred to as, a user terminal, user terminal equipment, or user equipment (UE). Furthermore, user equipment may be, or includes, mobile devices (such as mobile phones, smartphones, smartwatches, tablets, laptops, vehicles, or other vessels (human-, motor-, or engine-driven, such as cars, airplanes, trains, ships, or bicycles, as non-limiting examples)) or fixed or stationary devices (such as desktop computers or other computing devices that are not typically moved for extended periods, such as appliances, other relatively heavy devices including the Internet of Things (IoT), or computing devices used in commercial or industrial environments, as non-limiting examples). In various embodiments, user equipment 102 may include transceiver circuitry 106 coupled to antenna 108 to enable wireless communication with network device 104. Transceiver circuitry 106 may also be coupled to processor 110, which may also be coupled to memory 112 or other storage devices. The memory 112 may store instructions or code that, when read and executed by the processor 110, enable the processor 110 to implement the various methods described herein.

[0028] Furthermore, in general, network devices as described herein, such as network device 104, may include a single electronic device or apparatus, or multiple (e.g., network) electronic devices or apparatuses, and may include one or more wireless access nodes, base stations, or other wireless network access points capable of wirelessly communicating with one or more user equipments and / or with one or more other network devices 104 via the network. For example, in various embodiments, network device 104 may include a 4G LTE base station, a 5G NR base station, a 5G central unit base station, a 5G distributed unit base station, a next-generation node B (gNB), an enhanced node B (eNB), or other similar or next-generation (e.g., 6G) base station. Network device 104 may include transceiver circuitry 114 coupled to an antenna 116, which may include an antenna tower 118 in various methods to enable wireless communication with user equipment 102 or another network device 104. Transceiver circuitry 114 may also be coupled to one or more processors 120, which may also be coupled to memory 122 or other storage devices. The memory 122 may store instructions or code that, when read and executed by the processor 120, enable the processor 120 to implement one or more of the methods described herein.

[0029] In various embodiments, two communication nodes in wireless system 100—such as user equipment 102 and network device 104, two user equipment 102 without network device 104, or two network devices 104 without user equipment 102—can be configured to wirelessly communicate with each other in or through a mobile network and / or radio access network according to one or more standards and / or specifications. Generally, standards and / or specifications can define rules or procedures for communication nodes to wirelessly communicate. In various embodiments, these rules or procedures may include rules or procedures for communication in the millimeter (mm) band and / or the use of multi-antenna schemes and beamforming capabilities. Alternatively or additionally, standards and / or specifications are standards and / or specifications that define radio access technologies and / or cellular technologies, such as fourth-generation (4G) Long Term Evolution (LTE), fifth-generation (5G) New Radio (NR), or Unlicensed New Radio (NR-U), as non-limiting examples.

[0030] Furthermore, in the wireless system 100, communication nodes are configured to wirelessly transmit signals to each other. Typically, communication between two communication nodes in the wireless system 100 can be or includes transmitting or receiving, and is usually simultaneous, depending on the perspective of the specific node in the communication. For example, for a given communication between a first node and a second node, where the first node is transmitting a signal to the second node and the second node is receiving a signal from the first node, the first node can be referred to as a source or transmitting node or device, and the second node can be referred to as a destination or receiving node or device; this communication can be viewed as the first node transmitting and the second node receiving. Of course, since communication nodes in the wireless system 100 can both transmit and receive signals, a single communication node can simultaneously be both a transmitting / source node and a receiving / destination node, or switch between being a source / transmitting node and a destination / receiving node.

[0031] Furthermore, specific signals can be characterized or defined as uplink (UL) signals, downlink (DL) signals, or sidelink (SL) signals. An uplink signal is a signal transmitted from user equipment 102 to network device 104. A downlink signal is a signal transmitted from network device 104 to user equipment 102. A sidelink signal is a signal transmitted from one user equipment 102 to another user equipment 102, or from one network device 104 to another network device 104. Moreover, for sidelink transmissions, the first / source user equipment 102 directly transmits the sidelink signal to the second / destination user equipment 102 without forwarding it to network device 104.

[0032] Furthermore, the signals used for communication between communication nodes in system 100 can be characterized or defined as data signals or control signals. Generally, data signals are signals that include or carry data, such as multimedia data (e.g., voice and / or image data), while control signals are signals that carry control information that configures the communication nodes in a specific way to communicate with each other, or otherwise controls how the communication nodes communicate with each other. Additionally, certain signals can be defined or characterized by combinations of data / control and uplink / downlink / sidelink signals, including uplink control signals, uplink data signals, downlink control signals, downlink data signals, sidelink control signals, and sidelink data signals.

[0033] For at least some specifications, such as 5G NR, data and control signals are transmitted and / or carried on physical channels. Typically, a physical channel corresponds to a set of time-frequency resources used for signal transmission. Different types of physical channels can be used to transmit different types of signals. For example, physical data channels (or data-only channels), also known as traffic channels, are used to transmit data signals, while physical control channels (or control-only channels) are used to transmit control signals. Example types of traffic channels (or physical data channels) include, but are not limited to, the Physical Downlink Shared Channel (PDSCH) for transmitting downlink data signals, the Physical Uplink Shared Channel (PUSCH) for transmitting uplink data signals, and the Physical Sidelink Shared Channel (PSSCH) for transmitting sidelink data signals. Furthermore, example types of physical control channels include, but are not limited to, the Physical Downlink Control Channel (PDCCH) for transmitting downlink control signals, the Physical Uplink Control Channel (PUCCH) for transmitting uplink control signals, and the Physical Sidelink Control Channel (PSCCH) for transmitting sidelink control signals. For simplicity, as used herein, unless otherwise stated, a specific type of physical channel is also used to refer to signals transmitted on that specific type of physical channel and / or transmissions on that specific transmission type. As an example, PDSCH refers to the Physical Downlink Shared Channel itself, downlink data signals transmitted on the PDSCH, or downlink data transmissions. Therefore, a communication node sending or receiving a PDSCH implies that the communication node is sending or receiving signals on the PDSCH.

[0034] Furthermore, for at least some specifications, such as 5G NR, and / or for at least some types of control signals, the control signals transmitted by the communication nodes may include control information that includes information required to enable the transmission of one or more data signals between the communication nodes and / or to schedule one or more data channels (or one or more transmissions on a data channel). For example, such control information may include information required for the correct reception, decoding, and demodulation of data signals received on a physical data channel during data transmission, and / or information for uplink scheduling authorization that informs the user equipment of resources and transmission formats for uplink data transmission. In some embodiments, the control information includes downlink control information (DCI) transmitted from network device 104 to user equipment 102 in the downlink direction. In other embodiments, the control information includes uplink control information (UCI) transmitted from user equipment 102 in the uplink direction to network device 104, or sidelink control information (SCI) transmitted from one user equipment 102 (1) in the sidelink direction to another user equipment 102 (2).

[0035] Furthermore, in some implementations, time-domain resources are partitioned between the downlink and uplink in Time Division Duplex (TDD). However, allocating limited duration for the uplink in TDD can lead to reduced coverage, increased latency, and / or reduced capacity. Simultaneous uplink and downlink transmission (i.e., full-duplex), including subband non-overlapping full-duplex (SBFD) on the network side (e.g., gNB) within the TDD band, may help address these issues. In SBFD supported on a TDD carrier, the uplink (UL) subband is incorporated into the downlink and / or flexible symbols. This specification describes methods for handling reference signals (including downlink (DL) reference signals) in conjunction with implementations supporting SBFD on TDD carriers.

[0036] More specifically, in some implementations of SBFD operation, TDD carriers and UL subbands for performing SBFD may be given priority. UL subbands are configured on one or more downlink and / or flexible time units (e.g., time slots or symbols) with continuous frequency resources. Figure 2 A schematic diagram of SBFD operation on multiple downlink (D), flexible (F), and uplink (U) symbols is shown. Figure 2 As shown, UL subbands are configured in some downlink (D) and / or flexible (F) symbols or time slots to achieve SBFD, with DL subbands located on both sides of the UL subbands. Although Figure 2 Not shown, but some implementations may utilize a gap or protective strip between the UL sub-strip and the DL sub-strip.

[0037] Furthermore, for Channel State Information (CSI)-Reference Signal (RS) resource allocation, frequency resource allocation for CSI-RS across downlink subbands can include two consecutive CSI-RS resources linked together, or a CSI-RS with non-consecutive CSI-RS resource allocation, or a consecutive CSI-RS resource allocation with non-consecutive CSI-RS resources derived by excluding frequency resources outside the DL subband.

[0038] Furthermore, for CSI reports of associated CSI-RS instances appearing in the time units of SBFD symbols and non-SBFD symbols in different time slots, the same or separate CSI reports can be used for SBFD symbols and non-SBFD symbols, wherein the same or separate CSI reports can be associated with the same CSI-RS or only with different CSI-RS for SBFD symbols and non-SBFD symbols.

[0039] Figure 3 This is a flowchart of an example wireless communication method 300 related to reference signals using different types of time units. In block 302, user equipment 102 may receive at least one first reference signal in at least one first time unit of a first type, and at least one second reference signal in at least one second time unit of a second type. In block 304, user equipment 102 may perform at least one operation based on at least one first reference signal and at least one second reference signal, either combined or independent of each other.

[0040] Figure 4 This is a flowchart of an example wireless communication method 400 associated with reference signals using different types of time units. In block 402, network device 104 may transmit at least one reference signal to user equipment 102 in at least one first time unit of a first type, and at least one second reference signal in at least one second time unit of a second type. In block 304, network device 104 may receive reports associated with at least one operation performed by user equipment based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other.

[0041] In some implementations of method 300 and / or method 400, at least one of a first reference signal or at least one of a second reference signal includes a channel state information (CSI) reference signal (RS), and / or a first type includes sub-band full-duplex (SBFD) symbols or time slots, and a second type includes non-SBFD symbols or time slots.

[0042] In some implementations of method 300 and / or method 400, at least one operation includes calculating and / or reporting a predicted precoder matrix indicator (PMI). In some implementations of these, the PMI indicates a precoder matrix corresponding to at least one first reference signal and at least one second reference signal. Alternatively or additionally, the PMI indicates the precoder matrix in such a way that: the PMI indicates a precoder matrix associated with a set of consecutive time slot intervals, which are shared for at least one first time unit of a first type and at least one second time unit of a second type; the PMI indicates a first set of precoder matrices associated with a first set of consecutive time slot intervals specific to at least one first reference signal and a second set of precoder matrices associated with a second set of consecutive time slot intervals corresponding to at least one second reference signal; or the calculation and reporting of the predicted PMI are performed using at least one first reference signal and at least one second reference signal, which are independent of each other. Additionally or additionally, the first reference resource for at least one first time unit and the second reference resource for the second time unit are configured and / or reported separately.

[0043] In some implementations of method 300 and / or method 400, at least one operation includes beam prediction. In some implementations of these methods, user equipment 102 performs beam prediction based on a combination of at least one first reference signal and at least one second reference signal by predicting probability information associated with one or more beams shared by at least one first time unit and at least one second time unit, based on beam measurement information for at least one first time unit and at least one second time unit. Alternatively or additionally, in some implementations of these methods, the beam measurement information is shared for at least one first time unit and at least one second time unit, or the beam measurement information includes: first beam measurement information of a first subset of a second beam set specific to at least one first time unit, and second beam measurement information of a second subset of a second beam set specific to at least one second time unit. Alternatively, in some implementations of these implementations, user equipment 102 performs beam prediction based on a combination of at least one first reference signal and at least one second reference signal by: predicting first probability information associated with one or more beams specific to at least one first time unit and second probability information associated with one or more beams specific to at least one second time unit using beam measurement information of one or more beams in a third group shared with at least one first time unit and at least one second time unit; or predicting first probability information associated with one or more beams in a first group specific to at least one first time unit based on first measurement information of one or more beams in a second group specific to at least one first time unit, and predicting second probability information associated with one or more beams in a third group specific to at least one second time unit based on second measurement information of one or more beams in a fourth group specific to at least one second time unit. Alternatively, in some implementations of these implementations, the same model is used to predict first probability information based on first measurement information and second probability information based on second measurement information; or, a first model is used to predict first probability information based on first measurement information, and a second model, different from the first model, is used to predict second probability information based on second measurement information.Alternatively, in some implementations, user equipment 102 performs beam prediction based on a combination of at least one first reference signal and at least one second reference signal by: determining one or more historical time instances shared with at least one first time unit and at least one second time unit, and determining beam measurement information for one or more beams for at least one first time unit and at least one second time unit at the historical time instances; or determining one or more historical time instances specific to at least one first time unit, and determining first beam measurement information for one or more beams for at least one first time unit at the historical time instances; and independently of determining one or more historical time instances, determining one or more historical time instances specific to at least one second time unit, and determining second beam measurement information for one or more beams for at least one second time unit at the historical time instances.

[0044] In some implementations of method 300 and / or method 400, at least one operation includes channel state information (CSI) measurement and reporting for coherent joint transmission (CJT). To perform CSI measurement and reporting for CJT based on a combination of at least one first reference signal and at least one second reference signal, a predetermined number of non-zero power (NZP) CSI reference signal (RS) resources are used as channel measurement resources (CMR), wherein each NZP CSI-RS resource for at least one first time unit and at least one second time unit represents a transmit receiver point (TRP). In some implementations of these methods, the predetermined number of NZP CSI-RS resources are configured in two adjacent time slots of the same type or different types, where the same type includes SBFD or non-SBFD, and the different types include SBFD and non-SBFD. Alternatively, in some implementations of these implementations, each pair of NZPCSI-RS resources for at least one first time unit and at least one second time unit represents a single TRP; or, each pair of NZP CSI-RS resources for at least one first time unit and at least one second time unit is configured in the same time slot or in two pairs of consecutive time slots, the two pairs of consecutive time slots comprising a first pair of time slots of a first type and a second pair of time slots of a second type, wherein the first type is different from the second type, and each of the first type and the second type includes SBFD or non-SBFD.

[0045] In some implementations of method 300 and / or method 400, at least one operation includes channel state information (CSI) measurement and time-domain channel attribute (TDCP) reporting. In at least some of these implementations, the user equipment 102 performs CSI measurement and TDCP reporting by performing a wideband normalized correlation between two CSI reference signal (RS) transmission times. Specifically, in these implementations, both CSI-RS transmission times are part of at least one first reference signal in at least one first time unit; both CSI-RS transmission times are part of at least one second reference signal in at least one second time unit; or one of the two CSI-RS transmission times is part of at least one first reference signal in at least one first time unit, and the other of the two CSI-RS transmission times is part of at least one second reference signal in at least one second time unit. Additionally or alternatively, in some implementations, at least one operation further includes performing a wideband normalized correlation between two additional CSI-RS transmission times, wherein: both CSI-RS transmission times are part of at least one first reference signal in at least one first time unit; and the other two CSI-RS transmission times are part of at least one second reference signal in at least one second time unit.

[0046] In some implementations of method 300 and / or method 400, at least one operation includes multi-channel state information (CSI) reporting. In at least some of these implementations, user equipment 102 performs the multi-CSI reporting based on at least one first reference signal and at least one second reference signal, either in combination or independently, such that in a single reporting instance, the report is based solely on at least one first reference signal, solely on at least one second reference signal, or based on both at least one first reference signal and at least one second reference signal. Alternatively, in some implementations of these implementations, user equipment 102 performs the multi-CSI reporting according to a CSI reporting setting comprising multiple sub-configurations, wherein each sub-configuration includes: at least one parameter for spatial domain (SD) adaptation or power domain (PD) adaptation, and a time unit for only the first type, only the second type, or both the first and second types.

[0047] Further details of the actions performed by one or more communication nodes in the wireless communication system 100 are now described, any of which may be incorporated into any of the various implementations of method 300, method 400, or other methods.

[0048] In some implementations, the downlink (DL) reference signal (e.g., Channel State Information (CSI)-Reference Signal (RS)) can be configured and transmitted within one or more downlink (D) and / or flexible (F) time units (e.g., time slots or symbols). In implementations where the uplink (UL) subband is configured within one or more downlink and / or flexible time slots or symbols, at least the DL reference signal can be transmitted in the UL subband. This may result in different configurations of the DL reference signal in SBFD time units (e.g., symbols or time slots) and non-SBFD time units (e.g., symbols or time slots), or the same configuration of the DL reference signal but performing different operations in SBFD and non-SBFD time units. It is noteworthy that in at least some of these implementations, the SBFD time unit (e.g., symbol or time slot) is the downlink and / or flexible time unit configured with the UL subband. Regardless of the configuration of the DL reference signal, this specification describes how the downlink reference signal can be used in different symbols / slots, such as for CSI-RS used in implementations of CSI (e.g., Precoding Matrix Indication (PMI)) prediction or downlink transmit (Tx) beam prediction. Generally, in the various implementations described herein, user equipment 102 performs at least one operation or action based on a reference signal (e.g., but not limited to CSI-RS) in a first type of time unit (e.g., symbol or slot, etc.) or a second type of time unit (e.g., non-SBFD time unit, such as symbol or slot) combined with or independent of each other.

[0049] Example 1 In an implementation that performs precoder matrix indication (PMI) prediction without supporting or using SBFD between communication nodes, user equipment 102 can perform PMI prediction based on a framework including a CSI reporting window with a reference resource slot (nn). CSI，ref ) or report time slot (plus offset, n+ (This refers to the starting time slot corresponding to the PMI calculation) l The PMI indicators in the report are consistent with those from the time slot. l The initial N4 consecutive time slot intervals are associated with the predicted precoder matrix, each time slot interval having d The duration of each time slot. Figure 5 A time series diagram of example PMI forecasts and reports is shown. For at least some of these implementations, The value is configured by the higher-level parameter N4. Furthermore, in some implementations, the framework includes a Doppler domain (DD) basis based on Discrete Fourier Transform (DFT) to provide a third dimension for PMI compression (in addition to the spatial domain (SD) and frequency domain (FD)); includes one or two time-domain (TD) channel quality indicators (CQIs) in a CSI report (alongside the PMI and rank indicator (RI); and / or includes an aperiodic CSI-RS consisting of multiple non-zero power (NZP) CSI-RS resources as channel measurement resources (CMR).

[0050] In other implementations, PMI forecasting can be implemented with support, configuration, or utilization of SBFD. In at least some of these implementations, the calculation and / or reporting of the forecasted PMI can be based on one or more CSI-RS in one or more SBFD symbols or slots and one or more CSI-RS in one or more non-SBFD symbols or slots, either in combination or independently.

[0051] Furthermore, in some implementations that utilize SBFD to perform the calculation and / or reporting of predicted PCI, the predicted PMI based on CSI-RS on SBFD and non-SBFD symbols can indicate the predicted precoder matrix, as well as a set of associated continuous time slot intervals shared by SBFD and non-SBFD symbols. Figure 6 An example is shown of using CSI-RS transmitted on both SBFD and non-SBFD time units to calculate and / or report PMI forecasts. In some implementations, such as Figure 6 As shown, the predicted PMI is reported in a CSI report, for example, in slot n and / or slot n. Furthermore, in Figure 6 In the example implementation, by combining the CSI-RS in the SBFD symbols and the CSI-RS in the non-SBFD symbols, the predictive PMI predictive precoder matrix associated with the same N4 consecutive time slot intervals is obtained from time slot l=n+ To begin. In this case, the N4 consecutive time slot intervals are shared for both SBFD and non-SBFD symbols (and / or for both SBFD and non-SBFD symbols' CSI-RS). Furthermore, in some implementations, such as Figure 6 As shown, the CSI reference resources for SBFD symbols and non-SBFD symbols are the same. In, as... Figure 7 In other implementations shown, the CSI reference resources for SBFD symbols and non-SBFD symbols are separate or different, and / or separately configured or reported.

[0052] In other implementations of predictive PMI calculation and reporting, the predicted PMI indication based on CSI-RS on SBFD and non-SBFD symbols is associated with the predictive precoder matrix of individual consecutive time slot intervals, such as... Figure 8 As shown. That is, the first set of consecutive time slot intervals is associated with SBFD symbols, and the second set of consecutive time slot intervals is associated with non-SBFD symbols. In any of the various implementations, the individually associated consecutive time slot intervals may partially overlap each other in time, or they may not overlap at all (i.e., they do not overlap at all). Furthermore, in some of these implementations, the predicted PMI is reported in a single CSI report. Figure 8 As shown, the CSI-RS in the SBFD and non-SBFD symbols are used to predict PMI calculations, respectively, and the predicted PMI indicators are derived from time slots. l1 =n+ and l2 =n+ The initial separation of consecutive time slot intervals is associated with the prediction precoding matrix. In, as... Figure 8 In some of the implementations shown, the predicted PMI is reported in a CSI report, for example, in slot n. Alternatively or concurrently, in any of these implementations, the CSI reference resources for SBFD symbols and non-SBFD symbols may be the same or different.

[0053] In other implementations of PMI forecasting and reporting, the forecasted PMI is calculated and reported based on CSI-RS on SBFD and non-SBFD symbols, which are independent of each other. In some of these implementations, the forecasted PMI indication based on CSI-RS on SBFD and non-SBFD symbols is associated with a forecast precoder matrix of independent consecutive time slot intervals. In any of these implementations, the independent consecutive time slot intervals may partially overlap or not overlap in time. Alternatively or alternatively, in some implementations, the forecasted PMI for SBFD and non-SBFD symbols is reported in separate CSI reports. Alternatively or alternatively, the CSI-RS on SBFD symbols and the CSI-RS on non-SBFD symbols are used separately for PMI forecasting, with the forecasted PMI indication associated with the respective time slots. l1 =n+ and l2 =n2+ The prediction precoding matrix is ​​associated with the initial consecutive time slot intervals. Alternatively, in some implementations of these, the predicted PMI is reported in a separate CSI report, e.g., in time slots n1 and n2. Alternatively, in some implementations of these, the CSI reference resources for SBFD symbols and non-SBFD symbols may be the same or different.

[0054] In summary, downlink reference signals in SBFD and non-SBFD symbols can be used in combination, separately, or independently for predicting PMI calculations and / or reporting. Such an implementation can achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, such an implementation can provide more accurate PMI predictions, for example, by using different types of symbols.

[0055] Example 2 Furthermore, in some implementations, beam prediction in the time and / or spatial domains can be performed, which can reduce overhead and / or latency and / or improve beam selection accuracy. Some implementations of beam prediction can perform this without supporting or utilizing SBFD. In such implementations, measurements based on beam set B can be used as model inputs to artificial intelligence (AI) and / or machine learning (ML) models (collectively referred to herein as AI / ML). Additionally, beam ID information can be provided as input to the AI / ML model. Based on the model output (e.g., the probability that each beam in beam set A is a Top-1 (or highest-ranking) beam, including the predicted Layer 1 (L1)-Reference Signal Received Power (RSRP)), the Top-1 / N beams in beam set A can also be predicted, including the predicted L1-RSRP, which in some implementations may depend on the label.

[0056] Furthermore, in the first example implementation of beam management (BM-Case 1), measurements from set B are used as model input to predict the Top-1 / N beams from set A. In the second example implementation of beam management (BM-Case 2), measurements from one or more historical time instances are used as model input for temporal DL beam prediction of beams from set A. In some implementations of BM-Case 1 and / or BM-Case 2, set A and set B are different (i.e., set B is not a subset of set A), or set B is a subset of set A. Alternatively, for some implementations in BM-Case 2, set A and set B are the same. Alternatively, each beam may correspond to a CSI-RS for beam management, and L1-RSRP is based on CSI-RS measurements. Alternatively, the predicted beams may be DL transmit (Tx) beams or DL ​​transmit (Tx)-receive (Rx) beam pairs. Alternatively, for BM-Case 1 and BM-Case 2, in some implementations, user equipment 102 may report prediction results to network device 104 based on the output of the UE-side AI / ML model. In other implementations, network device 104 may predict Top-1 / N beams based on reported measurements from a set B of network-side models. Figure 9 Example diagrams of the model inputs and outputs of AI / ML models are shown, for example, based on BM-Case 1 and BM-Case 2.

[0057] Furthermore, in some implementations, SBFD can be utilized or supported to perform beam prediction. In some of these implementations, predicted beams can be derived based on CSI-RS in SBFD time units (e.g., symbols or slots) or CSI-RS in non-SBFD time units (e.g., symbols or slots) in combination or independently.

[0058] In some implementations of these, beam prediction based on CSI-RS for both SBFD and non-SBFD symbols can be determined. Alternatively, in some implementations of these, beam set A is the same for both SBFD and non-SBFD symbols, while beam set B is determined independently for both SBFD and non-SBFD symbols. Conversely, such implementations can include beam set B1 for SBFD symbols and beam set B2 for non-SBFD symbols. In any of these implementations, the number of beams in set B1 for SBFD symbols may be the same as or different from the number of beams in set B2 for non-SBFD symbols. In implementations where the number of beams in sets B1 and B2 is the same, the beam index for set B1 may be the same as or different from the detailed index for set B2. Alternatively, in some implementations, the top N1 beams (e.g., beams with the top N1 L1-RSRPs) can be predicted in the beam set A of SBFD symbols, which may be the same as the top N2 beams (e.g., beams with the top N2 L1-RSRPs) predicted among the beam set A of non-SBFD symbols. For illustration, CSI-RS in SBFD symbols and CSI-RS in non-SBFD symbols can be combined for beam prediction, and an AI / ML model can be used with the same beam set B of SBFD symbols and non-SBFD symbols. In other implementations, such as... Figure 10 As shown, the CSI-RS of SBFD symbols and the CSI-RS of non-SBFD symbols are used for beam prediction of an AI / ML model, respectively. The beam set B1 used for SBFD symbols and the separate or independent set B2 used for non-SBFD symbols are used as separate inputs in the AI / ML model to output the predicted beam set A shared by SBFD symbols and non-SBFD symbols.

[0059] In other implementations that support or use SBFD beam prediction, a beam set A1 specific to SBFD symbols and a beam set A2 specific to non-SBFD symbols can be predicted based on a beam set B shared by SBFD and non-SBFD symbols. In still other implementations, sets A1 and A2 can be predicted using only AI / ML models or multiple AI / ML models, based on separate or independent sets B1 and B2 specific to SBFD and non-SBFD symbols, respectively. In any of these implementations, the top N1 beams predicted in beam set A1 of SBFD symbols (or beams with the top N1 L1-RSRPs) are the same as or different from the top N2 beams predicted in beam set A2 of non-SBFD symbols (or beams with the top N2 L1-RSRPs). As used herein, N1 and N2 are integers. Furthermore, in any of these implementations, N1 equals N2, and / or the detailed indices of the N1 beams are the same as or different from the detailed indices of the N2 beams. In other implementations, N1 is less than or greater than N2. In some implementations where N1 is less than N2, the detailed indices of the N1 beams are a subset of the detailed indices of the N2 beams. Furthermore, in some implementations where N1 is greater than N2, the detailed indices of the N2 beams are a subset of the detailed indices of the N1 beams.

[0060] More specifically, in some implementations, beam prediction can be based on a combination of CSI-RS in SBFD symbols and CSI-RS in non-SBFD symbols. For example, as... Figure 11 As shown, the beam set B shared by SBFD symbols and non-SBFD symbols can be input into an AI / ML model, which can output independent or separate prediction sets A1 and A2 for SBFD symbols and non-SBFD symbols, respectively.

[0061] In such Figure 12 and Figure 13 In other implementations shown, CSI-RS in SBFD symbols and CSI-RS in non-SBFD symbols are used separately for beam prediction. For example, a set B1 specific to SBFD symbols is used to predict a set A1 specific to SBFD symbols, and a set B2 specific to non-SBFD symbols is used to predict a set A2 specific to non-SBFD symbols. Figure 12 In the implementation, an AI / ML model is used to make predictions on sets A1 and A2. For example, as... Figure 12 As shown, both set B1 and set B2 are input into the same single AI / ML model. In contrast, in Figure 13In the implementation, different or separate AI / ML models are used to predict sets A1 and A2. For example, set B1 is provided as input to a first AI / ML model to predict set A1, and set B2 is provided as input to a second AI / ML model to predict set A2.

[0062] In other implementations, including those implementing BM-Case 2 above, regardless of whether it is a set B shared by SBFD and non-SBFD symbols, or different sets B1 and B2 specific to SBFD and non-SBFD symbols respectively, historical time instances for beam measurements shared by SBFD and non-SBFD symbols, or including a first historical time instance specific to SBFD symbols and a second historical time instance specific to non-SBFD symbols, can be configured, determined, and / or used for beam prediction. In some implementations, historical time instances for beam measurements of non-SBFD symbols may include historical time instances for beam measurements of SBFD symbols. Furthermore, in some implementations, beam prediction can be performed based on CSI-RS on SBFD and non-SBFD symbols using historical time instances to determine the predicted beam shared by SBFD and non-SBFD symbols, or to determine a first predicted beam specific to SBFD symbols and a second predicted beam specific to non-SBFD symbols. Alternatively, in any of the various implementations, the beam set B shared by SBFD symbols and non-SBFD symbols can be input into the AI / ML model, or a first beam set B1 specific to SBFD symbols and a second beam set B2 specific to non-SBFD symbols can be input into one or more AI / ML models. Alternatively, one or more AI / ML models can output or predict the top N1 beams (or beams with the top N1 L1-RSRPs) in the beam set A shared by SBFD symbols and non-SBFD symbols, or can output or predict the top N1 beams (or beams with the top N1 L1-RSRPs) specific to SBFD symbols, which are different from or independent of the top N2 beams (or beams with the top N2 L1-RSRPs) predicted in the beam set A2 specific to non-SBFD symbols.

[0063] Furthermore, in any of the various implementations within the context of beam prediction, a beam may include or correspond to a CSI resource index. Alternatively or alternatively, a beam set (e.g., any of the sets A, B, A1, A2, B1, B2 as described above) may include or correspond to any of a CSI resource index set, a CSI resource set, a CSI source group, or various combinations thereof.

[0064] Alternatively or concurrently, beam prediction can be performed in conjunction with and / or beam manipulation. In any of the various implementations of the wireless communication system 100, including those implementing NR, multi-beam operation can be performed, where each signal and / or channel is transmitted on a directional beam. To perform multi-beam operation, beamforming can be performed to achieve higher throughput and sufficient coverage, particularly in the high-frequency range. For DL ​​transmission beamforming, network devices (e.g., gNBs) apply transmission beamforming to synchronization signal (SS) / physical broadcast channel (PBCH) blocks (SSBs) and / or CSI-RS transmissions, and user equipment 102 measures the reference signal received power (RSRP) on the physical layer (L1-RSRP) on the configured SS / PBCH blocks and / or CSI resources. Furthermore, user equipment 102 can report SS / PBCH blocks or CSI-RS resources with the maximum L1-RSRP value as L1-RSRP beamforming reports. Network device 104 (e.g., gNB) can determine the gNB transmission beamforming of user equipment 102 based on the reported L1-RSRP. For PDCCH / PDSCH transmission, network device 104 (e.g., gNB) can notify user equipment 102 that gNB transmission beamforming or CSI-RS resources applied to a certain SS / PBCH block are applied to PDCCH / PDSCH transmission, so that user equipment 102 can apply receive beamforming suitable for gNB transmission beamforming.

[0065] In summary, beam prediction can be performed based on downlink reference signals (e.g., CSI-RS) in SBFD and non-SBFD symbols, either in combination or independently. This, in turn, can be used to achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, beam prediction using different types of symbols (e.g., SBFD and non-SBFD symbols) can provide more accurate beam prediction.

[0066] Example 3 Furthermore, in some implementations, CSI measurements and reporting for coherent joint transmissions (CJT) with multiple transmit receiver points (TRPs) can be supported without configuring SBFD. In some of these implementations, up to K (e.g., K=4) non-zero power (NZP) CSI-RS resources can be used as channel measurement resources (CMR), where each NZP CSI-RS resource can represent a TRP. Specifically, in these implementations, the K resources are configured in the same time slot or in two adjacent time slots.

[0067] Furthermore, in other implementations, CSI measurements and reporting are supported or utilized using multi-TRP coherent joint transmission (CJT) configured with SBFD. In some of these implementations, up to K (e.g., K=4) NZP CSI-RS resources can be used as CMR, where each NZP CSI-RS applied or received in SBFD and non-SBFD symbols can represent a TRP. In some of these implementations, the K NZP CSI-RS resources are configured, for example, according to one or more of the following first to third schemes, in the same time slot or two adjacent time slots of the same or different types.

[0068] In the first scheme, K resources are configured within the same non-SBFD time slot or two adjacent non-SBFD time slots. For example, K resources may not be configured within an SBFD time slot. In some of these implementations, two adjacent non-SBFD time slots are consecutive, meaning that one or more SBFD symbols / time slots cannot be located between two adjacent non-SBFD time slots.

[0069] In the second scheme, K resources are configured within the same time slot or two adjacent time slots of the same type. For example, the two adjacent time slots could be two adjacent SBFD time slots or two adjacent non-SBFD time slots. In some of these implementations, the two adjacent time slots are consecutive time slots of the same type, meaning that one or more symbols or time slots of different types cannot be located between two adjacent time slots of the same type. For example, K resources are configured within the same time slot or two adjacent non-SBFD time slots, and these two adjacent non-SBFD time slots are consecutive, such that one or more SBFD symbols or time slots cannot be positioned or inserted between these two adjacent non-SBFD time slots. As another example, K resources are configured within the same time slot or two adjacent SBFD time slots, and these two adjacent SBFD time slots are consecutive, such that one or more non-SBFD symbols or time slots cannot be positioned or inserted between these two adjacent SBFD time slots.

[0070] In the third scheme, K resources are configured in the same time slot or in two adjacent time slots of different types. For example, two adjacent time slots are two consecutive time slots, including a first time slot and a second time slot, where the first time slot is a non-SBFD time slot and the second time slot is an SBFD time slot, or the first time slot is an SBFD time slot and the second time slot is a non-SBFD time slot.

[0071] Furthermore, in some implementations, up to K (e.g., K=8) NZP CSI-RS resources can be used as CMR, where every two NZP CSI-RS received in SBFD and non-SBFD symbols can represent TRP. In some of these implementations, the K NZP CSI resources are configured in two adjacent time slots of the same time slot or of the same or different types, for example, according to one or more of the fourth or fifth schemes below.

[0072] In the fourth scheme, K resources of every two NZP CSI-RS received in two types of symbols (e.g., SBFD symbols and non-SBFD symbols) are configured in the same time slot or in two pairs of adjacent time slots, where these two pairs of adjacent time slots have different types from each other. For example, the two pairs of adjacent time slots include a first pair of two adjacent SBFD time slots and a second pair of two adjacent non-SBFD time slots. The two adjacent time slots can be two consecutive time slots of the same type. For example, half of the K resources are configured in the same time slot or in two adjacent non-SBFD time slots, while the other half of the K resources are configured in the same time slot or in two adjacent SBFD time slots. In some of these implementations, the two adjacent SBFD time slots are two consecutive time slots, meaning that one or more non-SBFD symbols or time slots may not or cannot be located or inserted between two adjacent SBFD time slots. In other implementations, the two adjacent non-SBFD time slots are two consecutive time slots, meaning that one or more SBFD symbols or time slots may not or cannot be located or positioned between two adjacent SBFD time slots.

[0073] In the fifth scheme, K resources of every two NZP CSI-RS received in SBFD and non-SBFD symbols are configured in the same time slot or in two adjacent time slots of different types. For example, two adjacent time slots can be two consecutive time slots, including a first time slot and a second time slot, where the first time slot is a non-SBFD time slot and the second time slot is an SBFD time slot, or the first time slot is an SBFD time slot and the second time slot is a non-SBFD time slot.

[0074] Furthermore, in some embodiments, if the CSI-RS in one of the two configured adjacent time slots is unavailable during SBFD operation, the measurement and / or reporting of the coherent joint transmission multi-TRP configured with SBFD can fall back to the CSI of the coherent joint transmission without SBFD. Alternatively, if the CSI-RS in one of the two configured adjacent time slots is unavailable during SBFD operation, the measurement and / or reporting of the coherent joint transmission multi-TRP configured with SBFD will be performed based on the other time slot. Alternatively, if the CSI-RS in one of the two configured adjacent time slots is unavailable during SBFD operation, aperiodic CSI-RS can be transmitted in the UL subband, and the measurement and / or reporting of the coherent joint transmission multi-TRP configured with SBFD can be operated based on both time slots.

[0075] In summary, coherent joint transmission can be performed based on downlink reference signals (e.g., CSI-RS) in SBFD symbols and non-SBFD symbols, either in combination or independently. This, in turn, allows for SBFD with UL subbands to achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, more accurate channel measurements for each TRP can be achieved by using different types of symbols (e.g., SBFD and non-SBFD).

[0076] Example 4 Furthermore, in some implementations, CSI measurements and Time-Domain Channel Attributes (TDCP) reporting can be performed without configuring SBFD. In at least some of these implementations, the normalized bandwidth amplitude and phase of the time-domain autocorrelation can be reported. Alternatively, in some of these implementations, K resources are configured in the same time slot or two adjacent time slots.

[0077] More specifically, TDCP is a measure reflecting the channel variability caused by the mobility of user equipment 102. Furthermore, TDCP can be measured by user equipment 102 via DL CSI-RS and reported to network device 104. In response, network device 104 can apply different configurations to provide better data transmission services for user equipment 102 with different mobility speeds. Additionally, in some implementations, TDCP is defined as the broadband normalized correlation between two CSI-RS transmission events, corresponding to CSI-RS resources from an NZP CSI-RS resource set configured with higher-layer parameter trs information, which are separated by Dn symbols or time slots, where Dn is the nth delay configuration value in the delay values ​​{D1, ..., DY}, and Y is the number of configured delay values.

[0078] Furthermore, in some implementations, CSI measurements and reporting of Time-Domain Channel Attributes (TDCP) can be performed with SBFD configured. In some of these implementations, wideband normalized correlation between two CSI-RS transmission opportunities in SBFD symbols and / or non-SBFD symbols can be determined. Specifically, in these implementations, wideband normalized correlation is determined, for example, between two CSI-RS transmission opportunities transmitted in the same type of symbols or time slots or different types of symbols and time slots, according to the first to third schemes below.

[0079] In the first scheme, the broadband normalized correlation between two CSI-RS transmission opportunities is determined only if they are transmitted in non-SBFD symbols or time slots. In other words, for two CSI-RS transmission opportunities transmitted in SBFD time slots, the broadband normalized correlation is not determined.

[0080] In the second approach, a wideband normalized correlation is determined between two CSI-RS transmission opportunities that are transmitted in the same type of symbols or time slots. That is, a wideband normalized correlation is determined between two CSI-RS transmission opportunities that are both transmitted in SBFD symbols or time slots, or both transmitted in non-SBFD symbols and time slots. In some of these implementations, two wideband normalized correlations can be determined for four CSI-RS transmission opportunities, including a first wideband normalized correlation between two CSI-RS transmission opportunities transmitted in SBFD symbols and a second wideband normalized correlation between two other CSI-RS transmission opportunities transmitted in non-SBFD symbols. In some of these implementations, for the periodic tracking reference signal (TRS) that includes the CSI-RS used for tracking, independent periodic TRSs (e.g., K TRSs greater than 1) are configured for SBFD symbols and non-SBFD symbols respectively.

[0081] In the third approach, broadband normalized correlation can be determined between two CSI-RS transmission events that are transmitted in the same or different types of symbols or time slots. For example, broadband normalized correlation can be determined between two CSI-RS transmission events that are transmitted in symbols or time slots, both of which are SBFD symbols or time slots, both of which are non-SBFD symbols and time slots, or one time slot is an SBFD symbol or time slot and the other time slot is a non-SBFD symbol or time slot.

[0082] In summary, TDCP CSI measurements and reporting can be performed based on downlink reference signals (e.g., CSI-RS) in SBFD and non-SBFD symbols, either in combination or independently. In turn, SBFD with UL subbands can be implemented to achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, different types of symbols (e.g., SBFD and non-SBFD) can be used to determine more accurate normalized broadband amplitude and phase with time-domain autocorrelation.

[0083] Example 5 Furthermore, in some implementations, multi-CSI reporting can be performed without configuring, using, or implementing SBFD. In at least some of these implementations, user equipment 102 can report N CSI sub-reports in a single reporting instance, where N is an integer greater than 1. This can be performed by network device 104 configuring L sub-configurations in CSI reporting settings, where L is greater than or equal to N, and where each sub-configuration includes parameters for spatial domain (SD) adaptation or power domain (PD) adaptation.

[0084] Furthermore, in some other implementations, multiple CSI reporting can be performed within a single report, and SBFD can be configured, utilized, or implemented. Such implementations allow user equipment to report N CSI sub-reports within a single report instance, where N is an integer greater than 1. For at least some of these implementations, downlink reference signals in SBFD and non-SBFD symbols can be combined with each other or used independently for multiple CSI reporting within a single report. In some of these implementations, each sub-configuration includes parameters for spatial domain (SD) adaptation or power domain (PD) adaptation, as well as parameters for symbols or time slots of the same or different types, for example, according to one or more of the following first to third schemes.

[0085] In the first scheme, each sub-configuration may include one or more parameters for spatial domain (SD) adaptation or power domain (PD) adaptation, as well as for symbols or time slots of the same type. For example, the first sub-configuration may include parameters for spatial domain (SD) adaptation and non-SBFD symbols, while the second sub-configuration may include parameters for power domain (PD) adaptation and SBFD symbols.

[0086] In the second scheme, each sub-configuration may include parameters for all types of symbols or time slots and for spatial domain (SD) adaptation or power domain (PD) adaptation. For example, the first sub-configuration may include parameters for spatial domain (SD) adaptation and for both non-SBFD and SBFD symbols, and the second sub-configuration may include parameters for power domain (PD) adaptation and for both non-SBFD symbol symbols and SBFD symbols.

[0087] In the third scheme, each sub-configuration may include parameters for a type of symbol or time slot and for either spatial domain (SD) adaptive or power domain (PD) adaptive symbols. For example, the first sub-configuration may include parameters for spatial domain (SD) adaptive and non-SBFD symbols, the second sub-configuration may include parameters for power domain (PD) adaptive and SBFD symbols, the third sub-configuration may include parameters for spatial domain (SD) adaptive and SBFD symbols, and the fourth sub-configuration may include parameters for power domain (PD) adaptive and non-SBFD symbols.

[0088] In summary, multi-CSI reporting in a single report can be performed based on downlink reference signals (e.g., CSI-RS) in SBFD and non-SBFD symbols, either in combination or independently. This, in turn, allows SBFD to be implemented using UL subbands, which can achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, more accurate multi-CSI reporting can be achieved in a single report by using different types of symbols (e.g., SBFD and non-SBFD).

[0089] Example 6 Furthermore, in some implementations, CSI processing unit (CPU) usage can be employed without configuring SBFD. For at least some of these implementations, CPU usage... ,in This is the number of CSI-RS resources in the CSI-RS resource set used for channel measurements. If L sub-configurations are provided, then... Used for CSI reports, where This represents the total number of CSI-RS resources corresponding to the i-th sub-configuration. In the implementation of CSI configuration for TDCP, The delay number Y is configured by the higher-level parameter Y, where The value is reported by the UE capability. Alternatively, it may be configured in the CSI-RS configuration for channel measurements. In the implementation of each resource, ,in Reported by UE capability indication.

[0090] Furthermore, in some other implementations, CSI processing unit (CPU) occupancy can be employed or utilized with SBFD configured. In at least some of these implementations, CSI processing unit occupancy can be performed based on downlink reference signals in SBFD and non-SBFD symbols, either in combination or independently. In particular, in these implementations, one or more of the following first to fifth schemes can be used to determine the CPU occupancy generated by SBFD CSI.

[0091] In the first option, Used for CSI reports, where It is the total number of CSI-RS resources corresponding to the i-th sub-configuration that can be used simultaneously for SBFD symbols and non-SBFD symbols.

[0092] In the second option, Used for CSI reports, where It is the total number of CSI-RS resources corresponding to the i-th sub-configuration that can be used simultaneously for SBFD and non-SBFD symbols, and the two CSIs transmitted in SBFD and non-SBFD symbols. RSs are interconnected.

[0093] In the third scenario, CPU utilization is half that of the scenario without SBFD configuration. For example, Used for CSI reports, where It is the total number of CSI-RS resources in the CSI-RS resource set used for channel measurements of SBFD and non-SBFD symbols, and the two CSIs transmitted in SBFD and non-SBFD symbols. RSs are interconnected.

[0094] In the fourth option, Used for CSI reports, where This refers to the number of configured UL, DL, or UL and DL subbands. Additionally, in some of these implementations, X is a default or predetermined number, such as 1 or another integer, or it can be reported via a UE capability indicator.

[0095] In the fifth scenario, regardless of whether SBFD is used while CPU usage is high, CPU usage with SBFD configured will double compared to the case without SBFD, assuming all other conditions are the same.

[0096] In summary, CPU occupancy can be performed based on downlink reference signals (e.g., CSI-RS) in SBFD symbols and non-SBFD symbols, either in combination or independently. This, in turn, enables SBFD with UL subbands, which in turn can achieve better performance in terms of reduced latency and / or increased capacity. Alternatively, more precise CPU occupancy can be achieved by using different types of symbols (e.g., SBFD and non-SBFD).

[0097] Example 7 Furthermore, in some implementations of single-cell operation, when the effective DL bandwidth portion (BWP) of the serving cell is switched after being scheduled by the DLDCI format and the DL DCI format does not trigger the BWP handover, the user equipment 102 may omit the Hybrid Automatic Response Request (HARQ)-Acknowledgement (ACK) information bits associated with the DL DCI format from the HARQ-ACK codebook.

[0098] For DCI format 1_3 scheduling on cells from a set of serving cells, similar behavior can be considered. The first radio access network (RAN) node RAN1 may need to determine or clarify the corresponding behavior of user equipment 102, such as whether the HARQ-ACK information bits are skipped only for cells with BWP changes or for the entire DCI.

[0099] In the case of skipping HARQ-ACK information bits for the entire DCI, that is, if the valid DL BWP of one of the co-scheduled cells changes after scheduling DCI format 1_3, then the HARQ-ACK feedback of all PDSCH on multiple cells scheduled by DCI format 1_3 will be discarded.

[0100] Furthermore, when skipping HARQ-ACK information bits only for cells with BWP changes—that is, when the PDCCH monitoring opportunity (MO) provided by DCI format 1_3 occurs before a valid DL BWP change on one of the cells co-scheduled by DCI format 1_3, and DCI format 1_3 does not trigger a valid DL BWP change for that cell, and the PUCCH indicated by DCI format 1_3 will be sent after the valid DL BWP change on the cell—one or more of the following may occur: For Type 2 codebooks used to generate the second subcodebook, the corresponding HARQ-ACK information for the cell with BWP handover is generated using negative acknowledgment (NACK) bits; and / or for Type 1 and Type 2 codebooks used to generate the first subcodebook, the corresponding HARQ-ACK information for the cell with BWP handover is skipped.

[0101] Furthermore, if the HARQ-ACK skipping of the second sub-codebook applies only to cells with BWP handover, although the codebook size can be determined unambiguously, the HARQ timing used to determine the start of K1 may be ambiguous, where K1 is the time offset from PDSCH to HARQ-ACK feedback, for example, in the form of the K1 time slot. For example, as... Figure 14As shown, the DCI format 1_3 carried in the scheduled PDCCH is used to schedule PDSCHs on cells #0, 1, 2, and 3 from a set of serving cells #0, 1, 2, and 3. The last PDSCH in the multi-cell scheduling is located on cell #0 in the set of cells #0, 1, 2, and 3. If the cell with BWP handover is cell #0, the start of K1 is uncertain because the actual timing of the BWP handover with subcarrier spacing (SCS) changes before or after the PDSCH is uncertain. This is why skipping HARQ-ACK is introduced in BWP handover.

[0102] For example, Figure 15 Another example of multi-cell scheduling is shown. As shown in Figure Y, the DCI format 1_3 carried in the PDCCH on the scheduler is used to schedule the PDSCH on cells #0, 1, 2, and 3 from a set of serving cells #0, 1, 2, and 3. The last PDSCH in the multi-cell scheduling is located on cell #1 in the set of cells #0, 1, 2, and 3. If the cell with BWP handover is cell #1, the start of K1 is uncertain, similar to... Figure 14 The example is shown in the text. Furthermore, if the cell with the BWP handover is cell #0, the start of K1 on the PUCCH cell is also uncertain when determining the start of K1.

[0103] To avoid the above ambiguity, at least one of the following schemes can be implemented.

[0104] In the first scheme, if the last PDSCH is not scheduled on the cell and / or the cell is not a PUCCH cell or a primary cell (PCell), then in the case of BWP handover on the cell, HARQ-ACK skipping of the second subcodebook is performed for each cell.

[0105] In the second scheme, if the last PDSCH is not scheduled on the cell and the cell is neither a PUCCH cell nor a PCell, then in the case of a BWP handover on the cell, HARQ-ACK skipping of the second subcodebook is performed for each cell. Otherwise, in the case of a BWP handover on the cell, HARQ-ACK skipping of the second subcodebook is performed for each DCI.

[0106] In the third scheme, if the HARQ-ACK information bits are skipped only for cells with BWP changes—that is, if the PDCCH MO providing DCI format 1_3 occurs before a valid DL BWP change on one of the cells co-scheduled by DCI format 1_3—then DCI format 1_3 will not trigger a valid DL BWP change for that cell. Furthermore, if the last PDSCH was not scheduled on that cell and / or that cell is not a PUCCH cell or PCell, the PUCCH indicated by DCI format 1_3 will be sent after the valid DL BWP change on that cell. In some implementations of the third scheme, for Type 2 codebooks used to generate the second subcodebook, the corresponding HARQ-ACK information for cells with BWP handover is generated using NACK bits. Alternatively, in some implementations of the third scheme, for Type 1 and Type 2 codebooks used to generate the first subcodebook, the corresponding HARQ-ACK information for cells with BWP handover is skipped.

[0107] In the fourth scheme, if the HARQ-ACK information bits are skipped only for cells with BWP changes—that is, if the PDCCH MO providing DCI format 1_3 occurs before a valid DL BWP change on one of the cells co-scheduled by DCI format 1_3—then DCI format 1_3 will not trigger a valid DL BWP change for that cell. Furthermore, if the last PDSCH is scheduled on that cell and / or that cell is a PUCCH cell or PCell, the PUCCH indicated by DCI format 1_3 will be sent after the valid DL BWP change on that cell. In some implementations of the fourth scheme, for Type 2 codebooks used to generate the second subcodebook, the corresponding HARQ-ACK information for the second subcodebook is skipped, or optionally, the information is generated using NACK bits. Alternatively, in some implementations of the fourth scheme, for Type 1 and Type 2 codebooks used to generate the first subcodebook, the corresponding HARQ-ACK information for cells with BWP handover is skipped.

[0108] Example 8 For deployment scenarios with a frequency range 1 (FR1) TDD PCell and a frequency range 2 (FR2) TDD SCell, the DL performance of the cell edge user equipment 102 in the FR2 SCell may be affected by the coverage of the corresponding HARQ-ACK feedback. To ensure UL coverage of the HARQ-ACK for the FR2 SCell, one approach is to configure only one PUCCH cell group to allow the transmission of the FR2 SCell's HARQ-ACK in the PCell.

[0109] In this deployment scenario, a sufficient number of HARQ process numbers can be used based on the following scheduling constraint: user equipment 102 is not expected to receive another PDSCH for a given HARQ process before the expected completion of the HARQ-ACK transmission of that HARQ process.

[0110] Supporting only a maximum of 16 HARQ process numbers can reduce the FR2 DL peak rate of user equipment 102. In the scenario described above, only HARQ-ACK feedback latency is considered. However, round-trip time (RTT) also includes the additional processing time on the network (e.g., gNB) side between HARQ-ACK feedback and another PDSCH transmission. This additional processing time can include PUCCH processing time and other delays (e.g., interaction delays between different cells). Therefore, in the scenario described above, more HARQ process numbers are actually required.

[0111] Furthermore, if the maximum number of HARQ process numbers cannot be increased or even further reduced due to HARQ cache limitations, such as 8 HARQ process numbers, then at least one of the following schemes can be implemented.

[0112] In the first scheme, user equipment 102 expects to receive only one additional PDSCH for a given HARQ process before the expected HARQ-ACK transmission of that HARQ process ends.

[0113] In the second scheme, user equipment 102 expects to receive only one additional PDSCH for a given HARQ process before the expected transmission of HARQ-ACK for that HARQ process begins.

[0114] In the third scheme, user equipment 102 can receive one or more additional PDSCHs for a given HARQ process before the expected end or start of the HARQ-ACK transmission for that HARQ process, and can retransmit the last PDSCH with NACK feedback for that given HARQ process. In some of these implementations, any redundant versions (e.g., RV0, RV1, RV2, RV3) or only some redundant versions (e.g., only RV0 or RV3) can be used for the retransmitted PDSCHs.

[0115] In the fourth scheme, if user equipment 102 receives one or more PDSCHs for a given HARQ process before the expected end or start of a HARQ-ACK transmission, and if the UE receives a retransmission of the HARQ process, the retransmission corresponds to the last PDSCH or transport block (TB) in the PDSCH for which user equipment 102 generates a NACK. In some implementations of the fourth scheme, any redundant versions (e.g., RV0, RV1, RV2, RV3) or only some redundant versions (e.g., only RV0 or RV3) can be used for retransmission.

[0116] In the fifth scheme, if user equipment 102 receives one or more PDSCHs of a given HARQ process before the expected end or start of the HARQ-ACK transmission, and if user equipment 102 receives a retransmission of the HARQ process, the retransmission corresponds to the last PDSCH or TB among the PDSCHs that were not successfully received. In some implementations of the fifth scheme, any redundant versions (e.g., RV0, RV1, RV2, RV3) or only some redundant versions (e.g., RV0 or RV3) may be used for retransmission.

[0117] To illustrate, Figure 16 The timing diagram for PDSCH transmission and associated HARQ-ACK feedback is shown. Figure 16 In the example, both PDSCH1 and PDSCH2 use the same HARQ process number P1 (P1 is an integer, e.g., P1=1). Furthermore, PDSCH2 following PDSCH1 can be sent before the end or beginning of the HARQ-ACK feedback for that HARQ process. If the HARQ-ACK feedback for both PDSCH1 and PDSCH2 is {ACK, ACK}, no retransmission is needed. If the HARQ-ACK feedback for both PDSCH1 and PDSCH2 is {ACK, NACK}, a retransmission is performed for PDSCH2. If the HARQ-ACK feedback for both PDSCH1 and PDSCH2 is {NACK, ACK}, a retransmission is performed for PDSCH1. In some of these implementations, RV0 or RV3 can be used for retransmission. If the HARQ-ACK feedback for both PDSCH1 and PDSCH2 is {NACK, NACK}, a retransmission is performed for PDSCH2.

[0118] The foregoing description and accompanying drawings provide specific example embodiments and implementations. However, the described subject matter can be embodied in a variety of different forms, and therefore, the covered or claimed subject matter is intended to be construed as not being limited to any of the example embodiments described herein. A reasonably broad scope is intended for the claimed or covered subject matter. In addition, for example, the subject matter can be embodied as a method, apparatus, component, system, or non-transitory computer-readable medium for storing computer code. Thus, for example, embodiments can take the form of hardware, software, firmware, storage media, or any combination thereof. For example, the above-described method embodiments can be implemented by executing computer code stored in memory, by a component, apparatus, or system including memory and a processor.

[0119] Throughout the specification and claims, terms may have subtle meanings in the context that are implied or implicit, going beyond their literal meaning as explicitly stated. Similarly, the phrase "in one embodiment / implementation" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment / implementation" as used herein does not necessarily refer to a different embodiment. For example, the claimed subject matter includes combinations of all or some of the exemplary embodiments.

[0120] Generally, terms can be understood, at least in part, from their usage in context. For example, terms used herein, such as “and,” “or,” or “and / or,” may include a variety of meanings that may depend at least in part on the context in which they are used. Typically, “or,” if used to relate a list such as A, B, or C, implies that A, B, and C are inclusive, while A, B, or C is exclusive. Furthermore, the term “one or more,” as used herein, depends at least in part on the context and can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, and characteristics in a plural sense. Similarly, terms such as “a,” “an,” or “the” can be understood to convey either singular or plural usage, depending at least in part on the context. Moreover, the term “based on” can be understood not necessarily to convey a set of exclusive factors, but may allow for the presence of other factors that are not necessarily explicitly described, depending at least in part on the context.

[0121] References to features, advantages, or similar language throughout this specification do not imply that all features and advantages achievable with this solution should be included in any single implementation thereof. Rather, references to features and advantages are understood to mean that a particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of this solution. Therefore, throughout this specification, discussions of features and advantages, and similar language, may, but do not necessarily, refer to the same embodiments.

[0122] Furthermore, the features, advantages, and characteristics described herein can be combined in one or more embodiments in any suitable manner. Based on the description herein, those skilled in the art will recognize that this solution can be practiced without one or more specific features or advantages of a particular embodiment. In other instances, additional features and advantages that may not be present in all embodiments of this solution may be recognized in certain embodiments.

[0123] The subject matter of this disclosure may also include the following: The first aspect includes a method for wireless communication, the method comprising: receiving at least one first reference signal by a user equipment in at least one first time unit of a first type, and receiving at least one second reference signal in at least one second time unit of a second type; and performing at least one operation by the user equipment based on at least one first reference signal and at least one second reference signal combined with or independent of each other.

[0124] The second aspect includes a method for wireless communication, the method comprising: transmitting at least one first reference signal to a user equipment in at least one first time unit of a first type and transmitting at least one second reference signal in at least one second time unit of a second type by a network device; and receiving a report by the network device associated with at least one operation performed by the user equipment based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other.

[0125] The third aspect includes either the first aspect or the second aspect, and further includes: wherein at least one of the first reference signal or at least one of the second reference signals includes a channel state information (CSI) reference signal (RS), and / or wherein the first type includes a sub-band full-duplex (SBFD) symbol or time slot, and the second type includes a non-SBFD symbol or time slot.

[0126] The fourth aspect includes any one of the first to third aspects, and further includes: wherein at least one operation includes calculating and / or reporting a predicted precoder matrix indicator (PMI).

[0127] The fifth aspect includes the fourth aspect, and further includes: wherein the PMI indicates a precoder matrix corresponding to at least one first reference signal and at least one second reference signal.

[0128] The sixth aspect includes the fifth aspect, and further includes: wherein the PMI indicates the precoder matrix in such a way that: the PMI indicates a precoder matrix associated with a set of consecutive time slot intervals, the set of consecutive time slot intervals being shared for at least one first time unit of a first type and at least one second time unit of a second type; the PMI indicates a first set of precoder matrices associated with a first set of consecutive time slot intervals specific to at least one first reference signal and a second set of precoder matrices associated with a second set of consecutive time slot intervals corresponding to a second reference signal; or the calculation and reporting of the predicted PMI is performed using at least one first reference signal and at least one second reference signal that are independent of each other.

[0129] The seventh aspect includes the sixth aspect, and further includes: wherein a first reference resource for at least one first time unit and a second reference resource for a second time unit are configured and / or reported separately.

[0130] The eighth aspect includes any one of the first to seventh aspects, and further includes: wherein at least one operation includes beam prediction.

[0131] The ninth aspect includes the eighth aspect, and further includes: wherein the user equipment performs the beam prediction based on a combination of at least one first reference signal and at least one second reference signal by predicting probability information associated with one or more beams shared by at least one first time unit and at least one second time unit, based on beam measurement information for at least one first time unit and at least one second time unit.

[0132] The tenth aspect includes the ninth aspect, and further includes: wherein the beam measurement information is shared for at least one first time unit and at least one second time unit, or the beam measurement information includes: first beam measurement information of a first subset of a second beam set specific to at least one first time unit, and second beam measurement information of a second subset of a second beam set specific to at least one second time unit.

[0133] The eleventh aspect includes the eighth aspect, and further includes: wherein the user equipment performs beam prediction based on a combination of at least one first reference signal and at least one second reference signal by: using beam measurement information of one or more beams in a third group shared with at least one first time unit and at least one second time unit, predicting first probability information associated with one or more beams in a first group specific to at least one first time unit, and second probability information associated with one or more beams in a second group specific to at least one second time unit; or based on the first measurement information of one or more beams in a second group specific to at least one first time unit, predicting first probability information associated with one or more beams in a first group specific to at least one first time unit, and based on the second measurement information of one or more beams in a fourth group specific to at least one second time unit, predicting second probability information associated with one or more beams in a third group specific to at least one second time unit.

[0134] The twelfth aspect includes the eleventh aspect, and further includes: wherein the same model is used to predict first probability information based on first measurement information and to predict second probability information based on second measurement information; or, a first model is used to predict first probability information based on first measurement information and a second model different from the first model is used to predict second probability information based on second measurement information.

[0135] The thirteenth aspect includes the eighth aspect, and further includes: wherein the user equipment performs beam prediction based on a combination of at least one first reference signal and at least one second reference signal by: determining one or more historical time instances shared with at least one first time unit and at least one second time unit, and determining beam measurement information for one or more beams for at least one first time unit and at least one second time unit at the historical time instances; or determining a first set of one or more historical time instances specific to at least one first time unit, and determining first beam measurement information for the first set of one or more beams for at least one first time unit at the historical time instances; and independently of determining the first set of one or more historical time instances, determining a second set of one or more historical time instances specific to at least one second time unit, and determining second beam measurement information for the second set of one or more beams for at least one second time unit at the second set of one or more historical time instances.

[0136] The fourteenth aspect includes any one of the first to thirteenth aspects, and further includes: wherein at least one operation includes channel state information (CSI) measurement and reporting for coherent joint transmission (CJT), and wherein, in order to perform CSI measurement and reporting for CJT using a combination of at least one first reference signal and at least one second reference signal, a maximum of a predetermined number of non-zero power (NZP) CSI reference signal (RS) resources are used as channel measurement resources (CMR), wherein each NZP CSI-RS resource for at least one first time unit and at least one second time unit represents a transmission receiving point (TRP).

[0137] The fifteenth aspect includes the fourteenth aspect, and further includes: wherein a predetermined number of NZP CSI-RS resources are configured in two adjacent time slots of the same type or different types, wherein the same type includes SBFD or non-SBFD, and wherein the different types include SBFD and non-SBFD.

[0138] The sixteenth aspect comprises the fourteenth aspect, and further comprises: wherein each pair of NZP CSI-RS resources for at least one first time unit and at least one second time unit represents a single TRP; or, each pair of NZP CSI-RS resources for at least one first time unit and at least one second time unit is configured in the same time slot or in two pairs of consecutive time slots, the two pairs of consecutive time slots comprising a first pair of time slots of a first type and a second pair of time slots of a second type, the first type being different from the second type, and each of the first type and the second type comprising SBFD or non-SBFD.

[0139] The seventeenth aspect includes any one of the first to sixteenth aspects, and further includes: wherein at least one operation includes channel state information (CSI) measurement and time-domain channel attribute (TDCP) reporting, and wherein the user equipment performs the CSI measurement and TDCP reporting by performing wideband normalized correlation between two CSI reference signal (RS) transmission times, wherein: both CSI-RS transmission times are part of at least one first reference signal in at least one first time unit; both CSI-RS transmission times are part of at least one second reference signal in at least one second time unit; or one of the two CSI-RS transmission times is part of at least one first reference signal in at least one first time unit, and the other of the two CSI-RS transmission times is part of at least one second reference signal in at least one second time unit.

[0140] The eighteenth aspect includes the seventeenth aspect, and further includes: performing wideband normalized correlation between two additional CSI-RS transmission opportunities, wherein: both CSI-RS transmission opportunities are part of at least one first reference signal in at least one first time unit; and the two additional CSI-RS transmission opportunities are part of at least one second reference signal in at least one second time unit.

[0141] The nineteenth aspect includes any one of the first to eighteenth aspects, and further includes: wherein at least one operation includes multi-channel state information (CSI) reporting, and wherein the user equipment performs the multi-CSI reporting based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other: in a single reporting instance, reporting is based only on at least one first reference signal, only on at least one second reference signal, or based on both at least one first reference signal and at least one second reference signal.

[0142] The twentieth aspect includes the nineteenth aspect, and further includes: wherein the user equipment performs multiple CSI reports according to CSI reporting settings including multiple sub-configurations, wherein each sub-configuration includes: at least one parameter for spatial domain (SD) adaptation or power domain (PD) adaptation, and a time unit for only the first type, only the second type, or both the first and second types.

[0143] The 21st aspect includes any one of the first to twentieth aspects, and further includes: wherein at least one operation includes channel state information (CSI) processing unit (CPU) occupancy, wherein when communication is performed between the user equipment and the network equipment, the CPU occupancy is half or twice that when SBFD is supported, compared to the case where SBFD is not supported.

[0144] The twenty-second aspect includes a wireless communication device comprising a processor and a memory, wherein the processor is configured to read code from the memory to implement any one of the first to twenty-first aspects.

[0145] The twenty-third aspect includes a computer program product comprising a computer-readable program medium including code stored thereon, which, when executed by a processor, causes the processor to implement any one of the first to twenty-first aspects.

[0146] In addition to the features mentioned in the individual aspects listed above, some examples may show, individually or in combination, optional features mentioned in the dependent aspects and / or optional features disclosed in the specification above and shown in the figures.

Claims

1. A method for wireless communication, the method comprising: The user equipment receives at least one first reference signal in at least one first time unit of the first type, and at least one second reference signal in at least one second time unit of the second type; as well as The user equipment performs at least one operation based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other.

2. A method for wireless communication, the method comprising: The network device transmits at least one first reference signal to the user equipment in at least one first time unit of the first type and at least one second reference signal in at least one second time unit of the second type; as well as The network device receives a report associated with at least one operation performed by the user equipment based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other.

3. The method according to claim 1 or 2, wherein, At least one of the at least one first reference signal or the at least one second reference signal includes a channel state information (CSI) reference signal (RS), and / or wherein the first type includes sub-band full-duplex (SBFD) symbols or time slots, and the second type includes non-SBFD symbols or time slots.

4. The method according to claim 1 or 2, wherein, The at least one operation includes calculating and / or reporting the predicted precoder matrix indicator (PMI).

5. The method according to claim 4, wherein, The PMI indicates the precoder matrix corresponding to the at least one first reference signal and the at least one second reference signal.

6. The method according to claim 5, wherein, The PMI indicates the precoder matrix in the following manner: The PMI indicates a precoder matrix associated with a set of consecutive time slot intervals, which are shared for at least one first time unit of the first type and at least one second time unit of the second type. The PMI indicates a first set of precoder matrices associated with a first set of consecutive time slot intervals specific to the at least one first reference signal and a second set of precoder matrices associated with a second set of consecutive time slot intervals corresponding to the at least one second reference signal; or The calculation and reporting of the predicted PMI are performed using at least one first reference signal and at least one second reference signal that are independent of each other.

7. The method according to claim 6, wherein, The first reference resource for the at least one first time unit and the second reference resource for the second time unit are configured and / or reported separately.

8. The method according to any one of claims 1 or 2, wherein, The at least one operation includes beam prediction.

9. The method according to claim 8, wherein, The user equipment performs beam prediction based on a combination of the at least one first reference signal and the at least one second reference signal in the following manner: Based on beam measurement information of one or more beams in a second group for at least one first time unit and at least one second time unit, predict probability information associated with one or more beams in a first group shared by the at least one first time unit and at least one second time unit.

10. The method according to claim 9, wherein, The beam measurement information is shared for the at least one first time unit and the at least one second time unit, or the beam measurement information includes: first beam measurement information of a first subset of a second beam set specific to the at least one first time unit, and second beam measurement information of a second subset of a second beam set specific to the at least one second time unit.

11. The method according to claim 8, wherein, The user equipment performs beam prediction based on a combination of the at least one first reference signal and the at least one second reference signal in the following manner: Using beam measurement information of one or more beams in a third group shared with the at least one first time unit and the at least one second time unit, predict first probability information associated with the first group of one or more beams specific to the at least one first time unit, and second probability information associated with the second group of one or more beams specific to the at least one second time unit. or Based on first measurement information of a second group of one or more beams specific to the at least one first time unit, predict first probability information associated with the first group of one or more beams specific to the at least one first time unit; and based on second measurement information of a fourth group of one or more beams specific to the at least one second time unit, predict second probability information associated with a third group of one or more beams specific to the at least one second time unit.

12. The method according to claim 11, wherein, Using the same model, predict the first probability information based on the first measurement information, and predict the second probability information based on the second measurement information; or, use a first model to predict the first probability information based on the first measurement information, and use a second model different from the first model to predict the second probability information based on the second measurement information.

13. The method according to claim 8, wherein, The user equipment performs beam prediction based on a combination of the at least one first reference signal and the at least one second reference signal in the following manner: Identify a set of one or more historical time instances shared with the at least one first time unit and the at least one second time unit, and at the historical time instances determine beam measurement information for a set of one or more beams for the at least one first time unit and the at least one second time unit; or Determine a first group of one or more historical time instances specific to the at least one first time unit, and determine first beam measurement information for the first group of one or more beams for the at least one first time unit at the historical time instances; as well as Independently determining one or more historical time instances of the first group, determining one or more historical time instances of the second group, the second or more historical time instances of the second group, specific to the at least one second time unit, and determining second beam measurement information of one or more beams of the second group for the at least one second time unit at the second or more historical time instances.

14. The method according to claim 1 or 2, wherein, The at least one operation includes channel state information (CSI) measurement and reporting for coherent joint transmission (CJT), and In order to perform CSI measurements and reporting for CJT using the combination of the at least one first reference signal and the at least one second reference signal, a maximum of a predetermined number of non-zero power (NZP) CSI reference signal (RS) resources are used as channel measurement resources (CMR), wherein each NZP CSI-RS resource for the at least one first time unit and the at least one second time unit represents a transmit receiver point (TRP).

15. The method according to claim 14, wherein, The predetermined number of NZP CSI-RS resources are configured in two adjacent time slots of the same type or different types, where the same type includes SBFD or non-SBFD, and the different types include SBFD and non-SBFD.

16. The method of claim 14, wherein, Each pair of NZP CSI-RS resources for the at least one first time unit and the at least one second time unit represents a single TRP; Alternatively, every two NZP CSI-RS resources for the at least one first time unit and the at least one second time unit are configured in the same time slot or in two pairs of consecutive time slots, the two pairs of consecutive time slots including a first pair of time slots of a first type and a second pair of time slots of a second type, the first type being different from the second type, and each of the first type and the second type including SBFD or non-SBFD.

17. The method according to any one of claims 1 or 2, wherein, The at least one operation includes channel state information (CSI) measurement and time-domain channel attribute (TDCP) reporting, wherein the user equipment performs the CSI measurement and the TDCP reporting in the following manner: A wideband normalized correlation is performed between the two CSI reference signal (RS) transmission times, where: Both CSI-RS transmission opportunities are part of at least one first reference signal in the at least one first time unit; Both CSI-RS transmission timings are part of the at least one second reference signal within the at least one second time unit; or One of the two CSI-RS transmission opportunities is a portion of the at least one first reference signal in the at least one first time unit, and the other of the two CSI-RS transmission opportunities is a portion of the at least one second reference signal in the at least one second time unit.

18. The method of claim 17, further comprising: Perform wideband normalized correlation between the other two CSI-RS transmission times, where: Both CSI-RS transmission timings are part of the at least one first reference signal within the at least one first time unit; and The other two CSI-RS transmission timings are both part of the at least one second reference signal in the at least one second time unit.

19. The method according to any one of claims 1 or 2, wherein, The at least one operation includes multi-channel state information (CSI) reporting, and wherein the user equipment performs the multi-CSI reporting based on at least one first reference signal and at least one second reference signal, either in combination or independently of each other: In a single reporting instance, a report may be made based solely on the at least one first reference signal, solely on the at least one second reference signal, or based on both the at least one first reference signal and the at least one second reference signal.

20. The method according to claim 19, wherein, The user equipment executes the multi-CSI report according to CSI report settings including multiple sub-configurations, wherein each sub-configuration includes: At least one parameter is used for spatial domain (SD) adaptation or power domain (PD) adaptation, and a time unit is used only for the first type, only for the second type, or for both the first type and the second type.

21. The method according to any one of claims 1 or 2, wherein, The at least one operation includes channel state information (CSI) processing unit (CPU) usage, wherein when the user equipment communicates with the network equipment, the CPU usage is half or twice that when SBFD is supported, compared to the case where SBFD is not supported.

22. A wireless communication device, comprising a processor and a memory, wherein, The processor is configured to read code from the memory to implement the method of any one of claims 1 to 1.

23. A computer program product comprising a computer-readable program medium including code stored thereon, the code causing the processor to implement the method of any one of claims 1 to 21 when executed by a processor.

Images