Channel state information (CSI) reporting configuration for time domain channel characteristics (TDCP)

Abstract

Some aspects of the present disclosure relate to apparatuses and methods for supporting channel state information (CSI) reporting configuration for measuring time domain channel characteristics (TDCP) of a channel between a user equipment (UE) and a base station. The UE may receive a CSI report configuration from the base station to configure a CSI report, wherein the CSI report configuration includes indicators related to a plurality of tracking reference signal (TRS) resource sets for measuring the TDCP of the channel. The TRS resource set may include at least two symbols in a slot for a CSI reference signal (CSI-RS), and the slot is repeated to form a plurality of slots having a periodicity. The UE may also configure the plurality of TRS resource sets based on CSI resource settings associated with the CSI reporting configuration, and monitor the configured plurality of TRS resource sets to perform CSI reporting measurements.

Description

[0001] Related patent applications

[0002] This application claims priority to U.S. Nonprovisional Patent Application No. 18 / 656,874, filed May 7, 2024, which claims the benefit of U.S. Provisional Patent Application No. 63 / 465,575, filed May 11, 2023, the contents of which are incorporated herein by reference in their entirety. Background Technology Technical Field

[0003] The aspects described in general relate to Channel State Information (CSI) reporting.

[0004] Related fields

[0005] User equipment (UE) communicates with base stations (such as evolved Node B (eNB), next-generation Node B (gNB), or other base stations) in a wireless communication network or system. Wireless communication systems can include fifth-generation (5G) systems, new radio (NR) systems, long-term evolution (LTE) systems, combinations thereof, or some other wireless systems. Furthermore, wireless communication systems can support a wide range of use cases, such as enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), ultra-reliable and low-latency communications (URLLC), and enhanced vehicle-to-everything communications (eV2X). Challenges exist in various technologies such as NR wireless systems. Summary of the Invention

[0006] Some aspects of this disclosure relate to apparatus and methods for implementing techniques for providing a user equipment (UE) or base station to support channel state information (CSI) report configurations for time-domain channel characteristics (TDCP). A CSI report configuration transmitted from a base station may include an indication of report quality associated with multiple tracking reference signal (TRS) resource sets to measure the time-domain channel characteristics (TDCP) of the channel between the UE and the base station, wherein the TRS resource sets may include at least two symbols in a time slot and are repeated to form a plurality of time slots with periodicity. The implemented techniques are applicable to many wireless systems, such as wireless communication systems based on 3GPP Release 15 (Rel-15), Release 16 (Rel-16), Release 17 (Rel-17), Release 18 (Rel-18), etc.

[0007] Some aspects of this disclosure relate to a UE. The UE may include a transceiver and a processor communicatively coupled to the transceiver. The transceiver may be configured to communicate with a base station. The processor may be configured to receive a CSI report configuration for configuring a CSI report, wherein the CSI report configuration includes indicators associated with multiple Tracking Reference Signal (TRS) resource sets for measuring the time-domain channel characteristics (TDCP) of the channel between the UE and the base station. In some embodiments, the multiple TRS resource sets include only one TRS resource set. The TRS resource set may include at least two symbols in a time slot for the CSI Reference Signal (CSI-RS), and the time slots are repeated to form a plurality of time slots with periodicity, such as up to two consecutive time slots. The processor may also configure the multiple TRS resource sets based on CSI resource settings associated with the CSI report configuration, and monitor the configured multiple TRS resource sets to perform CSI report measurements. The processor may then generate a CSI report based on the CSI report measurements, wherein the CSI report includes an indication of the time-domain channel characteristics measured based on the multiple TRS resource sets. The UE may also transmit the CSI report to the base station.

[0008] In some implementations, the CSI resource settings associated with the CSI report configuration may be included within the CSI resource configuration associated with the CSI report configuration. In some implementations, the CSI resource settings associated with the CSI report configuration are indicated by parameters included in the CSI report configuration. In some implementations, the CSI resource settings associated with the CSI report configuration are indicated by another CSI report configuration that is associated with and different from the CSI report configuration.

[0009] In some embodiments, the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured with the same time-domain behavior. In some embodiments, the plurality of TRS resource sets includes a first TRS resource set with a first periodicity and a second TRS resource set with a second periodicity, wherein the second periodicity is equal to or a multiple of the first periodicity. In some embodiments, the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured with one or more of the same quasi-co-located (QCL) characteristics associated with Doppler drift, Doppler spread, average delay, delay spread, Rx spatial filter, or average gain. In some embodiments, the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured with the same frequency-domain resources, or configured by the same CSI report configuration. In some embodiments, CSI reports and CSI report measurements are generated by a plurality of CSI processing units (CPUs), and wherein the number of CPUs is equal to the number of TRS resource sets.

[0010] A method for wireless communication between a base station and a user equipment (UE) in a wireless system is proposed. The method includes generating a CSI report configuration to configure a CSI report. The CSI report configuration includes indicators associated with multiple TRS resource sets for TDCP used to measure the channel between the UE and the base station, wherein each TRS resource set includes at least two symbols in a time slot for a CSI reference signal (CSI-RS), and the time slots are repeated to form a plurality of time slots with periodicity. The method further includes: determining CSI resource settings associated with the CSI report configuration for configuring the multiple TRS resource sets; and sending the CSI report configuration and the CSI resource settings to the UE. The method further includes: transmitting the CSI reference signal (CSI-RS) over the multiple TRS resource sets; and receiving a CSI report generated by the UE based on CSI report measurements performed on the CSI-RS over the multiple TRS resource sets.

[0011] The content of this invention is provided for illustrative purposes only, to provide an understanding of the subject matter described herein. Therefore, the features described above are merely illustrative and should not be construed as narrowing the scope or substance of the subject matter of this disclosure. Other features, aspects, and advantages of this disclosure will become apparent from the following detailed description, the accompanying drawings, and the claims. Attached Figure Description

[0012] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate the present disclosure and, together with the specification, further serve to explain the principles of the disclosure and enable those skilled in the art to implement and use the disclosure.

[0013] Figures 1A to 1C An example wireless system is illustrated, which supports the configuration of a channel state information (CSI) report received from a base station for time-domain channel characteristics (TDCP) in accordance with some aspects of this disclosure.

[0014] Figure 2 A block diagram illustrating a UE supporting a CSI report configuration for TDCP, based on some aspects of this disclosure, is provided.

[0015] Figures 3A to 3B An example procedure performed by a UE and a base station configured to support a CSI report for TDCP, according to some aspects of this disclosure, is illustrated.

[0016] Figure 4 It is an example computer system for implementing some aspects or parts of the disclosure provided herein.

[0017] This disclosure is described with reference to the accompanying drawings. In the drawings, the same reference numerals generally indicate the same or similarly functional elements. Additionally, the leftmost numeral of the reference numerals generally appears first in the drawings. Detailed Implementation

[0018] In a wireless communication network or system, a user equipment (UE) communicates with a base station via a communication channel, where the base station may also be referred to as a network node, such as an evolved Node B (eNB), a next-generation Node B (gNB), or other base stations. Wireless communication systems may include fifth-generation (5G) systems, new radio (NR) systems, long-term evolution (LTE) systems, combinations thereof, or some other wireless systems. Multiple-input multiple-output (MIMO) transmission is likely an important technology in wireless systems. The UE or base station may include an antenna array or system with multiple antenna panels coupled to antenna ports, where the antenna panels may include an array of antenna elements that can be physically located close to each other. In some examples, the antenna may be a smart antenna system, where all antenna elements are considered pseudo-omnidirectional antenna elements or quasi-sector omnidirectional antenna elements, including phase shifters. Directional beams (such as transmit (Tx) beams or receive (Rx) beams) can be formed by adjusting the phase shifters of the antenna elements.

[0019] In wireless systems, Channel State Information (CSI) reports transmitted from a UE provide information to the base station or network regarding channel conditions for the channel between the UE and the base station. CSI reports can have time-domain behavior or attributes, including periodic, semi-persistent, or aperiodic reporting. Once periodic reporting is configured via Radio Resource Control (RRC) messages, pre-allocated resources can be used to periodically transmit CSI reports to the base station. Semi-persistent reporting can be configured first via RRC messages and further activated by a Media Access Control (MAC) control element (MAC CE) for transmission. Aperiodic reporting can be configured first via RRC messages and further triggered by Downlink Control Information (DCI) for one-time transmission.

[0020] The UE can measure CSI based on the CSI Reference Signal (CSI-RS) carried by the resource set and generate a CSI report indicating the signal quality of the channel between the UE and the base station. The channel between the UE and the base station is typically time-varying and can exhibit some temporal coherence depending on the UE's movement speed and the rate of change of the environment. However, radio systems such as NR radio systems may not yet utilize time-domain channel characteristics (TDCP), such as the correlation between CSI reports at multiple time instances used for CSI reporting.

[0021] The implementation described herein can specify enhancements to the CSI reporting configuration to measure the TDCP of the channel between the UE and the base station. The CSI reporting configuration can include indications of reporting quality associated with multiple Tracking Reference Signal (TRS) resource sets used for TDCP measurement. Multiple TRS resource sets can be configured to perform CSI reporting measurements. A TRS resource set can include at least two symbols in a time slot carrying the CSI Reference Signal (CSI-RS), and multiple time slots that repeat periodically to measure the TDCP of the channel between the UE and the base station. Due to the predetermined symbol pattern within the time slots and the repetition of multiple time slots, one or more TRS resource sets can be used to measure the TDCP of the channel over a time period.

[0022] Figures 1A to 1C An example wireless system is illustrated, demonstrating a CSI report configuration for TDCP received from a base station in accordance with some aspects of this disclosure. The wireless system 100 is provided for illustrative purposes only and is not intended to limit the scope of the disclosed aspects. Figure 1A As shown, system 100 may include, but is not limited to, a network node (referred to herein as a base station) 101, another base station 103, and one or more UEs (such as UE 102). System 100 may also include additional components not shown.

[0023] Depending on some aspects, a base station (such as base station 101 or base station 103) may include a network node configured to operate based on a wide variety of wireless communication technologies, such as, but not limited to, technologies based on 3GPP standards. For example, base station 101 may include a node configured to operate using Rel-16, Rel-17, or other versions. Base station 101 may be a fixed station and may also be referred to as a base transceiver system (BTS), access point (AP), transmit / receive point (TRP), evolved Node B (eNB), next-generation Node B (gNB), network node, or some other equivalent term. System 100 may operate using licensed cellular spectrum (referred to as in-band communication) and unlicensed spectrum (referred to as out-of-band communication).

[0024] Depending on some aspects, UE 102 can be configured to operate based on a wide variety of wireless communication technologies. These technologies may include, but are not limited to, technologies based on 3GPP standards. For example, UE 102 may be configured to operate using Rel-16, Rel-17, or later. UE 102 may include, but is not limited to, wireless communication devices, smartphones, laptops, desktop computers, tablets, personal assistants, monitors, televisions, wearable devices, Internet of Things (IoT) devices, communication devices in vehicles, mobile stations, user stations, remote terminals, wireless terminals, user equipment, etc.

[0025] According to some aspects, UE 102 may include transceiver 133, processor 131, and memory 132 communicatively coupled to transceiver 133. Transceiver 133 may be configured to communicate wirelessly with base station 101 via channel 122.

[0026] In some implementations, processor 131 may receive CSI report configuration 141 to configure CSI report 145, wherein CSI report configuration 141 may include an indicator, which may be a TDCP indicator 149 associated with a plurality of TRS resource sets 143 for measuring TDCP of channel 122. Processor 131 may also configure the plurality of TRS resource sets 143 based on CSI resource settings 142 associated with CSI report configuration 141. Processor 131 may monitor the configured plurality of TRS resource sets 143 to perform CSI report measurement 144. Subsequently, processor 131 may generate CSI report 145 based on CSI report measurement 144, wherein CSI report 145 may include an indication of TDCP measured based on the plurality of TRS resource sets 143. UE 102 may also transmit CSI report 145 to base station 101.

[0027] In some implementations, CSI report 145 may include one or more pieces of information, such as a rank indicator (RI), a predecoder matrix indicator (PMI), a channel quality indicator (CQI), a CSI-RS resource indicator (CRI), or other CSI information (such as a layer indicator (LI), an SS / PBCH resource block indicator (SSBRI)). The RI can provide a recommendation regarding the transmission rank to be used, or in other words, a recommendation regarding the number of layers that should preferably be used for downlink shared channel (DL-SCH) transmission to UE 102. The PMI can indicate a preferred predecoder to be used for DL-SCH transmission, conditioned on the number of layers indicated by the RI. In some implementations, the predecoder recommended by UE 102 is not explicitly signaled but is provided as an index to a predefined set of matrices (a so-called codebook). CQI can represent the highest modulation and decoding scheme. Using this scheme means that DL-SCH transmissions with the recommended RI and PMI will be received with a block error probability of up to 10% or some other predefined percentage. When the UE is configured to monitor multiple beams, CRI can indicate the UE's preferred beam. Combinations of RI, PMI, CQI, and CRI can be included together in the CSI report. Specifically, what is included in the CSI report depends on the reporting mode configured for UE 102. For example, unless UE 102 is in spatial multiplexing transmission mode, RI and PMI do not need to be reported.

[0028] In some implementations, CSI report 145 may have a temporal behavior or attribute that includes one of periodic reporting, semi-persistent reporting, or non-periodic reporting, which determines the frequency at which UE 102 generates CSI report 145 and sends it to base station 101.

[0029] In some implementations, CSI report configuration 141 may include various parameters, such as the CSI-ReportConfig parameter, codebookConfig parameter, or reportConfigType parameter for defining the type of CSI report, and the CSI-ResourceConfig parameter for defining the corresponding CSI-RS resource to be monitored to generate CSI reports. In some implementations, for CSI report configuration 141, reportConfigType may be periodic (P), semi-persistent (SP), or aperiodic (AP).

[0030] In some implementations, the plurality of TRS resource sets 143 may include only one TRS resource set. In some implementations, when the communication specification supports configuring K in CSI report settings (such as the CSI-ReportConfig parameter) for a UE 102 that supports TDCP reporting... TRS When there is ≥ 1 TRS resource set, UE 102 can choose to support K TRS = One TRS resource set as a basic feature. UE 102 supports K TRS A single TRS resource set can be optional. In some implementations, a general resource set for CSI reporting may include only one symbol in a time slot. In contrast, to measure time-domain channel characteristics (TDCP), such as the correlation for CSI reporting, a TRS resource set may include multiple symbols in a time slot, and the structure of the time slot may repeat periodically multiple times. In this way, a TRS resource set can provide CSI-RS over multiple symbols in multiple time slots to measure the channel characteristics of channel 122 over time.

[0031] In some implementation schemes, such as Figure 1B As shown, as an example of TRS resource set 143, TRS resource set 150 may include at least two symbols in time slot 153, symbol 152 and symbol 154, and also includes multiple time slots repeating with periodicity 155, such as time slot 151. Time slots can have various lengths. For example, for a 15kHz subcarrier spacing (SCS), each time slot may be 1 millisecond (ms), while for a 30kHz SCS, each time slot may be 0.5 ms. The periodicity 155 of TRS resource set 150 may be limited to {10, 20, 40, 80} ms. In some embodiments, the time slots of TRS resource set 150 may include 14 symbols, and two symbols (such as symbol 152 and symbol 154) may be separated by a 3-symbol gap, such as... Figure 1B As shown. In some implementations, symbols 152 and 154 may carry the same reference signal, for example, a 1-port CSI-RS. For frequency range 1 or frequency range 2, the time-domain positions of two CSI-RS resource symbols in the time slot of the TRS resource set may be symbols {4, 8}, {5, 9}, and {6, 10}. Figure 1B In the TRS resource set, the time domain position is {4, 8}. Furthermore, for frequency range 2, the time domain positions of two CSI-RS resource symbols in the time slot can be symbols {0, 4}, {1, 5}, {2, 6}, {3, 7}, {7, 11}, {8, 12}, or {9, 13}.

[0032] In some implementations, the TRS resource set 150 can be an NZP-CSI-RS-ResourceSet, where the parameter “trs-Info” is set to “true”, as detailed below:

[0033]

[0034]

[0035] In some implementation schemes, such as Figure 1C As shown, as an example of TRS resource set 143, TRS resource set 160 may include two consecutive time slots, time slot 161 and time slot 163, which can form an instance of TRS resource set 160. Furthermore, TRS resource set 160 includes multiple instances repeating with a periodicity 164, such as a second instance including time slots 165 and 167. For example, periodicity 164 may have values ​​selected from {10, 20, 40, 80} ms. Each time slot may include at least two symbols (166, 168) as CSI-RS resources. Therefore, in one period of TRS resource set 160, there are 4 symbols used as CSI-RS resources for two adjacent time slots (time slot 161, time slot 163).

[0036] In some implementations, the multiple TRS resource sets 143 (such as TRS resource set 150 or TRS resource set 160) can be configured by a CSI resource setting 142 associated with CSI reporting configuration 141. In some implementations, CSI resource setting 142 can be included in the CSI resource configuration, such as as indicated by a CSI-ResourceConfig parameter associated with the CSI reporting configuration. When more than one TRS resource set exists, K TRS ≥ 1, where each TRS resource set is an NZP-CSI-RS-resource set, and all K TRS TRS resource sets can be configured in the same CSI resource configuration parameter (e.g., CSI-ResourceConfig). This parameter, CSI-ResourceConfig, can be associated with the telecommunications standard TS38.214. In some implementations, the temporal behavior of CSI-RS resources within CSI resource setting 142 can be indicated by the higher-level parameter resourceType and can be set in CSI resource setting 142 to be aperiodic, periodic, or semi-persistent. For periodic and semi-persistent CSI resource settings 142, when multiple TRS resource sets 143 are configured as NZP-CSI-RS-ResourceSets with "trs-Info" set to "true", one or more TRS resource sets can be configured as follows:

[0037]

[0038] In some implementations, the CSI resource settings 142 associated with CSI reporting configuration 141 can be indicated by parameters included in CSI reporting configuration 141. When K exists... TRS When there are ≥ 1 TRS resource set, the parameter resourcesForChannelMeasurement can be configured in the same CSI-ReportConfig as follows.

[0039]

[0040] In some implementations, it is expected that only one of the resourcesForChannelMeasurement parameter and the resourcesForChannelMeasurement-r18 parameter shown above is configured in the network configuration. When more than one resourcesForChannelMeasurement is configured in the same CSI-ReportConfig, it is expected that all resourcesForChannelMeasurements are configured with the same Bandwidth Part (BWP) ID (bwp-Id).

[0041] In some implementations, the CSI reporting setting 142 associated with CSI reporting configuration 141 may be indicated by another CSI reporting configuration that is associated with but different from the CSI reporting configuration, such as one configured by CSI-AssociatedReportConfigInfo. In some implementations, K may exist in the same CSI-AssociatedReportConfigInfo. TRS ≥ 1 resourcesForChannel, as shown below.

[0042]

[0043]

[0044] In some implementations, it is desirable to configure only one of resourcesForChannel and resourcesForChannel-r18. Each TCI-StateId is applied to all NZP-CSI-RS-Resources in the corresponding NZP-CSI-RS-ResourceSet indicated in resourcesForChannel-r18.

[0045] In some embodiments, the plurality of TRS resource sets 143 may include a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured to have the same time-domain behavior. In some embodiments, the plurality of TRS resource sets include a first TRS resource set having a first periodicity and a second TRS resource set having a second periodicity, wherein the second periodicity is equal to or a multiple of the first periodicity. In some embodiments, the plurality of TRS resource sets include a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured to have one or more of the same quasi-co-located (QCL) characteristics associated with Doppler drift, Doppler spread, average delay, delay spread, Rx spatial filter, or average gain. In some embodiments, the plurality of TRS resource sets include a first TRS resource set and a second TRS resource set, and the first and second TRS resource sets are configured with the same frequency-domain resources, or configured by the same CSI report configuration. In some implementations, CSI reports and CSI report measurements are generated by multiple CSI processing units (CPUs), and the number of CPUs is equal to the number of TRS resource sets.

[0046] According to some aspects, it can be based on, such as Figure 2 The illustrated block diagram implements UE 102.

[0047] refer to Figure 2 UE 102 may have an antenna system including one or more antenna elements 219 of antenna panel 217 for forming various beams, which are coupled to transceiver 133 and controlled by processor 131. Transceiver 133 and the antenna system can enable wireless communication in a wireless network (such as wireless system 100), including wireless communication with base station 101. Specifically, transceiver 133 may include radio frequency (RF) circuitry 216, transmitting circuitry 212, and receiving circuitry 214 to enable wireless communication with other UEs and / or base stations, as discussed for wireless system 100. RF circuitry 216 may include multiple parallel RF chains for one or more functions in the transmitting or receiving capabilities, each RF chain being connected to one or more antenna elements of antenna panel 102. Furthermore, processor 131 may be communicatively coupled to memory 132, which is further coupled to transceiver 133. Various data may be stored in memory 132. In some examples, memory 132 may store CSI report configuration 141, which includes TDCP indicator 149, CSI resource settings 142, the plurality of TRS resource sets 143, CSI report measurements 144, and CSI reports 145.

[0048] In some embodiments, memory 132 may store instructions that, when executed by processor 131, perform or cause to perform the operations described herein, such as operations supporting CSI reporting configuration for TDCP. Alternatively, processor 131 may be "hard-decoded" to perform the operations described herein. In some embodiments, processor 131 may be configured to perform operations targeting Figures 3A to 3B The described operation.

[0049] Figure 3A Example procedure 300, executed by UE 102, supporting CSI report configuration for TDCP according to some aspects of this disclosure, is illustrated. Procedure 300 can be executed by UE 102, and can be performed as follows: Figure 2 This is achieved as shown. Process 300 can also be implemented by... Figure 4 The process is executed by computer system 400. Process 300 is not limited to the specific aspects depicted in the figures, and other systems may be used to perform the method, as those skilled in the art will understand. It should be understood that not all operations may be necessary, and these operations may not be performed in the same order as shown in process 300.

[0050] At 301, the processor 131 of UE 102 can receive CSI report configuration 141 to configure CSI report 145. CSI report configuration 141 includes indications of report quality, such as TDCP indicators 149 associated with multiple TRS resource sets 143 for measuring channel 122 between UE 102 and base station 101. The multiple TRS resource sets 143 may include at least two symbols (e.g., 152, 154) in time slots (e.g., 151) for CSI-RS, and multiple time slots that repeat periodically, such as... Figure 1B and Figure 1C As shown.

[0051] At 303, the processor 131 of UE 102 can configure the plurality of TRS resource sets 143 based on the CSI resource settings 142 associated with the CSI report configuration 141. In some embodiments, multiple TRS resource sets can be configured. As illustrated in the following description, various limitations and constraints can be applied to the plurality of TRS resource sets 143 to increase the coherence between symbols and time slots of the plurality of TRS resource sets 143. In some embodiments, limitations and constraints may include time-domain behavior, periodicity, relative time slot offset, QCL characteristics, physical resource blocks (PRBs), etc. Such coherence can improve the consistency of transmitted CSI-RS, thereby improving the measurement accuracy of TDCP for channel 122.

[0052] In some implementations, UE 102 may support K configured in the CSI reporting settings.TRS ≥ 1 TRS resource set, the CSI report setting can be CSI report configuration 141. The TRS resource set can be configured by setting the parameter ReportQuantity to "tdcp" or "TDCP" as the TDCP indicator 149. In some implementations, multiple (K) TRS >1) TRS resource sets are configured with the same time-domain behavior. For example, K TRS Each TRS resource set is either entirely periodic, entirely aperiodic, or, if the specification supports semi-persistence, entirely semi-persistent. In some implementations, K TRS Each TRS resource set can be configured with different time-domain behaviors. For example, some TRS resource sets can be configured to be periodic, while others can be configured to be aperiodic.

[0053] In some implementations, all TRS resource sets in the corresponding CSI-ResourceConfig or CSI-ReportConfig may have the same periodicity, with respect to the periodicity of TRS resources (such as NZP-CSI-RS-Resource). Additionally and alternatively, the periodicity of different TRS resource sets may be integer multiples of each other.

[0054] In some implementations, when the network is configured with K in the same CSI reporting settings (which may be CSI reporting configuration 141) TRS When there is at least one TRS resource set, the corresponding CSI-ResourceConfig can be configured as semi-persistent or periodic. Regarding the slot offset of different TRS resource sets (such as NZP-CSI-RS-ResourceSet) relative to the earliest TRS resource set, the relative slot offsets of other TRS resource sets can only take a limited number of values ​​from the subset. For example, the slot offset can be selected from {2, 3, 4, 5, 6, 10} slots.

[0055] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) For TRS resource sets, the CSI report setting can be CSI report configuration 141. If the corresponding CSI-ResourceConfig is configured to be aperiodic, then for different TRS resource sets (e.g., NZP-CSI-RS-ResourceSet), the relative aperiodicTriggeringOffset parameter for other TRS resource sets can only take a limited value from a subset (such as {2, 3, 4, 5, 6, 10} slots) relative to the earliest TRS resource set.

[0056] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) TRS resource set, the CSI report setting can be CSI report configuration 141. All TRS resources in all TRS resource sets can have the same QCL characteristics, such as Doppler drift, Doppler spread, average delay, delay spread, average gain, or other QCL characteristics. For non-periodic CSI reports, only a single TCI-StateId can be configured for each CSI-AssociatedReportConfigInfo.

[0057] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) TRS resource set, the CSI report setting can be CSI report configuration 141. All TRS resources in all TRS resource sets can be configured with the same frequency domain resources, such as physical resource blocks (PRBs) or resource elements (REs) within a PRB. For example, the frequency domain resources for the first TRS resource set and the frequency domain resources for the second TRS resource set include the same physical resource block (PRB) or the same resource element within a PRB.

[0058] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) TRS resource set, the CSI report setting can be CSI report configuration 141. All TRS resource sets can be configured with the same number of time slots, that is, all 2-time-slot TRS resource sets or 1-time-slot TRS resource sets.

[0059] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) TRS resource set, the CSI report setting can be CSI report configuration 141. For all TRS resource sets associated with the same CSI-ReportConfig, the same symbol location can be used in each time slot. As defined by the higher-level parameter CSI-RS-resourceMapping, the time domain location of two CSI-RS resources in a time slot or the time domain location of four CSI-RS resources in two consecutive time slots (which is the same across the two consecutive time slots) is given for frequency range 1 and frequency range 2 by one of lϵ{4,8}, lϵ{5,9} or lϵ{6,10}, or for frequency range 2 by lϵ{0,4}, lϵ{1,5}, lϵ{2,6}, lϵ{3,7}, lϵ{7,11}, lϵ{8,12} or lϵ{9,13}.

[0060] At 305, the processor 131 of UE 102 can monitor multiple configured TRS resource sets 143 to perform CSI report measurements 144.

[0061] At 307, the processor 131 of UE 102 can generate a CSI report 145 based on CSI report measurement 144, wherein the CSI report 145 may include an indication of time-domain channel characteristics measured based on multiple TRS resource sets. For example, the CSI report measurement 144 can be performed on multiple symbols of a time slot, wherein the symbols are repeated to form multiple time slots with periodicity, such as... Figures 1B to 1C As shown, when a first CSI report measurement is performed for time slot 151 and a second CSI report measurement is performed for time slot 153, the two CSI report measurements can show a correlation over time, which can be an indication of time-domain channel characteristics. Similarly, when a first CSI report measurement is performed for time slot 161, a second CSI report measurement is performed for time slot 163, a third CSI report measurement is performed for time slot 165, and a fourth CSI report measurement is performed for time slot 167, the four CSI report measurements can show a correlation over time, which can be an indication of time-domain channel characteristics.

[0062] At 309, the processor 131 of UE 102 can send a CSI report 145 to base station 101.

[0063] In some implementations, the network can configure multiple (K) reports within the same CSI report setting based on CSI report configuration 141. TRS 1) TRS Resource Set. UE 102 can report to base station 101 the number of CSI processing units (CPUs) available for performing operations for CSI reporting measurement 144, generating CSI report 145, and sending CSI report 145. In some implementations, UE 102 may use the same number of CPUs as the number of TRS resource sets. In some implementations, UE 102 may use only one CPU to perform the relevant operations, or use the total number of TRS resources in all TRS resource sets.

[0064] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS > 1) TRS resource set, the CSI report setting can be CSI report configuration 141. UE 102 can have low latency when performing operations for CSI report measurement 144, generating CSI report 145, and sending CSI report 145. For example, the latency can be defined similarly to Table 5.4-1 in TS38.214, as shown below, where the latency is defined by parameter Z1 or Z'1.

[0065] Table 5.4-1: CSI Calculation Delay Requirements 1

[0066]

[0067] In some implementations, the network can be configured with multiple (K) reports within the same CSI reporting settings. TRS 1) TRS resource set, where the CSI report setting can be CSI report configuration 141. UE 102 can have low latency when performing operations for CSI report measurement 144, generating CSI report 145, and sending CSI report 145. For example, the latency can be defined similarly to Table 5.4-1 in TS38.214, as shown below, where the latency is measured by the number of symbols represented by Z1 or Z'1, Z2 or Z'2, Z3 or Z'3. In some implementations, Z3 is used in FR2 or when QCL-TypeD is configured for TRS resources. In some implementations, the network can configure 2 time-slot TRS resources for each TRS resource set.

[0068] Table 5.4-2: CSI Calculation Delay Requirements 2

[0069]

[0070] Figure 3B Example procedure 310, performed by base station 101, is illustrated according to some aspects of this disclosure to support CSI report configuration for TDCP. Procedure 310 can be performed by UE 102, which can be as follows: Figure 2 This is achieved as shown. Process 300 can also be implemented by... Figure 4 The process is executed by computer system 400. Process 300 is not limited to the specific aspects depicted in the figures, and other systems may be used to perform the method, as those skilled in the art will understand. It should be understood that not all operations may be necessary, and these operations may not be performed in the same order as shown in process 300.

[0071] At 311, base station 101 can generate CSI report configuration 141 to configure CSI report 145. CSI report configuration 141 includes indicators, such as TDCP indicator 149, associated with multiple TRS resource sets 143 for TDCP used to measure channel 122 between UE 102 and base station 101. The TRS resource sets can include at least two symbols from a time slot used for CSI-RS, wherein the time slot is repeated to form multiple time slots with periodicity, such as... Figures 1B to 1C As shown.

[0072] At 313, base station 101 can determine CSI resource settings 142 associated with CSI report configuration 141 used to configure multiple TRS resource sets 143.

[0073] At 315, base station 101 can send CSI report configuration 141 and CSI resource settings 143 to UE 102.

[0074] At 317, base station 101 can transmit CSI-RS over multiple TRS resource sets 143.

[0075] At 319, base station 101 can receive CSI report 145 generated by UE 102 based on CSI report measurements performed on CSI-RS over multiple TRS resource sets 143.

[0076] Various aspects may utilize one or more computer systems (such as...) Figure 4 The computer system 400 shown is used to implement this. For the operations described for processor 131 or process 300, computer system 400 can be any computer capable of performing the functions described herein, such as UE 102 or base station 101 in FIG. 1. Computer system 400 includes one or more processors (also referred to as central processing units or CPUs), such as processor 404. Processor 404 is connected to communication infrastructure 406 (e.g., a bus). Computer system 400 also includes user input / output devices 403, such as monitors, keyboards, pointing devices, etc., that communicate with communication infrastructure 406 via user input / output interface 402. Computer system 400 also includes main memory or primary memory 408, such as random access memory (RAM). Main memory 408 may include one or more levels of cache. Main memory 408 already stores control logic (e.g., computer software) and / or data.

[0077] The computer system 400 may also include one or more secondary storage devices or memories 410. Secondary storage 410 may include, for example, a hard disk drive 412 and / or a removable storage device or drive 414. The removable storage drive 414 may be a floppy disk drive, a magnetic tape drive, an optical disk drive, an optical storage device, a magnetic tape backup device, and / or any other storage device / drive.

[0078] Removable storage drive 414 can interact with removable storage unit 418. Removable storage unit 418 includes a computer-usable or readable storage device on which computer software (control logic) and / or data are stored. Removable storage unit 418 can be a floppy disk, magnetic tape, optical disc, DVD, optical storage disk, and / or any other computer data storage device. Removable storage drive 414 reads from and / or writes to removable storage unit 418 in a well-known manner.

[0079] According to some aspects, secondary storage 410 may include other components, tools, or other methods for allowing computer system 400 to access computer programs and / or other instructions and / or data. Such components, tools, or other methods may include, for example, removable storage unit 422 and interface 420. Examples of removable storage unit 422 and interface 420 may include a program box and box interface (such as an interface present in video game devices), a removable memory chip (such as EPROM or PROM) and associated socket, a memory stick and USB port, a memory card and associated memory card slot, and / or any other removable storage unit and associated interface.

[0080] In some examples, for the operations described for processor 131 or process 300, main memory 408, removable storage unit 418, and removable storage unit 422 may store instructions that, when executed by processor 404, cause processor 404 to perform operations for UE, UE 102, or base station 101 in FIG. 1.

[0081] Computer system 400 may also include a communication or network interface 424. Communication interface 424 enables computer system 400 to communicate and interact with any combination of remote devices, remote networks, remote entities, etc. (individually and collectively referred to by reference numeral 428). For example, communication interface 424 may allow computer system 400 to communicate with remote device 428 via communication path 426, which may be wired and / or wireless, and may include any combination of LAN, WAN, Internet, etc. Control logic and / or data may be sent to and from computer system 400 via communication path 426.

[0082] The operations described in the foregoing aspects can be implemented in various configurations and architectures. Therefore, some or all of the operations described in the foregoing aspects can be performed in hardware, software, or both. In some aspects, tangible, non-transitory devices or articles of art include tangible, non-transitory computer-usable or readable media on which control logic (software) is stored, also referred to herein as computer program products or program storage devices. This includes, but is not limited to, computer system 400, main memory 408, secondary storage 410, and removable storage units 418 and 422, and tangible articles embodying any combination thereof. Such control logic, when executed by one or more data processing devices (such as computer system 400), causes such data processing devices to operate as described herein.

[0083] Based on the teachings contained in this disclosure, it will be apparent to those skilled in the art how to use [other methods]. Figure 4The data processing devices, computer systems, and / or computer architectures other than those shown herein may be used to implement and utilize aspects of this disclosure. Specifically, aspects may operate in conjunction with software, hardware, and / or operating system implementations other than those described herein.

[0084] It should be understood that the Detailed Description section, rather than the Summary and Abstract section, is intended to interpret the claims. The Summary and Abstract section may set forth one or more, but not all, exemplary aspects of this disclosure as contemplated by the inventors, and is therefore not intended to limit this disclosure or the appended claims in any way.

[0085] Although this disclosure has been described herein with reference to exemplary aspects of exemplary fields and applications, it should be understood that this disclosure is not limited thereto. Other aspects and modifications are possible and are within the scope and spirit of this disclosure. For example, and without limiting the generality of this paragraph, the aspects are not limited to the software, hardware, firmware, and / or entities illustrated in the figures and / or described herein. Furthermore, the aspects (whether explicitly described herein or not) have significant utility in fields and applications beyond those described herein.

[0086] This document has described aspects using functional building blocks that exemplify specific implementations of functions and their relationships. For ease of description, the boundaries of these functional building blocks have been arbitrarily defined herein. Alternative boundaries may be defined as long as the specified functions and relationships (or their equivalents) are performed appropriately. Furthermore, alternative aspects may perform functional blocks, steps, operations, methods, etc., in a different order than that described herein.

[0087] References to “an implementation,” “implementation,” “example implementation,” or similar phrases herein indicate that the described implementation may include specific features, structures, or characteristics, but each implementation may not necessarily include such features, structures, or characteristics. Furthermore, such phrases do not necessarily refer to the same implementation. Additionally, when a specific feature, structure, or characteristic is described in connection with an implementation, whether or not it is explicitly mentioned or described herein, the integration of such feature, structure, or characteristic into other aspects is within the knowledge of a person skilled in the art.

[0088] The breadth and scope of this disclosure should not be limited by any of the exemplary aspects described above, but should be defined solely by the following claims and their equivalents.

[0089] For one or more embodiments or examples, at least one of the components depicted in one or more of the foregoing figures may be configured to perform one or more operations, techniques, processes, and / or methods as described in the Embodiments section below. For example, circuitry associated with a UE, base station, network element, etc., as described above in conjunction with one or more of the foregoing figures may be configured to operate according to one or more embodiments described in the Embodiments section below.

[0090] This disclosure anticipates that entities responsible for the collection, analysis, disclosure, transmission, storage, or other use of such personal information data will comply with robust privacy policies and / or privacy measures. Specifically, such entities should implement and adhere to privacy policies and measures recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy and security of personal information data. Such policies should be easily accessible to users and should be updated as the collection and / or use of data changes. Personal information from users should be collected for legitimate and reasonable entity purposes and should not be shared or sold outside of these legitimate purposes. Furthermore, such collection / sharing should only occur upon receipt of informed consent from the user. Additionally, such entities should consider taking any necessary steps to protect and safeguard the right to access such personal information data and ensure that other entities with access to such personal information data comply with the privacy policies and procedures of those other entities. Furthermore, such entities may be subject to third-party assessments to demonstrate their compliance with widely accepted privacy policies and privacy practices. Moreover, policies and measures should be adapted to the specific types of personal information data collected and / or accessed, and to applicable laws and standards, including considerations of specific jurisdictions. For example, in the United States, the collection or acquisition of certain health data may be governed by federal and / or state laws, such as the Health Insurance Transfer and Accountability Act (HIPAA); while in other countries, health data may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy measures should be advocated for different types of personal data in each country.

Claims

1. A user equipment (UE), the user equipment (UE) comprising: A transceiver configured to enable wireless communication with a base station in a wireless system; and A processor, communicatively coupled to the transceiver and configured to: Receive a CSI report configuration for configuring a Channel State Information (CSI) report, wherein the CSI report configuration includes an indicator associated with multiple Tracking Reference Signal (TRS) resource sets for measuring the Time Domain Channel Characteristics (TDCP) of the channel between the UE and the base station, wherein the TRS resource sets include at least two symbols in the time slots for the CSI Reference Signal (CSI-RS), and wherein the time slots are repeated to form multiple time slots with periodicity; Configure the multiple TRS resource sets based on the CSI resource settings associated with the CSI report configuration; Monitor multiple configured TRS resource sets to perform CSI reporting measurements; The CSI report is generated based on the CSI report measurements, wherein the CSI report includes an indication of the time-domain channel characteristics measured based on the plurality of TRS resource sets; and The CSI report is sent to the base station.

2. The UE according to claim 1, wherein the plurality of TRS resource sets includes only one TRS resource set.

3. The UE of claim 1, wherein the CSI resource settings associated with the CSI report configuration are included in the CSI resource configuration associated with the CSI report configuration.

4. The UE of claim 1, wherein the CSI resource settings associated with the CSI report configuration are indicated by parameters included in the CSI report configuration.

5. The UE of claim 1, wherein the CSI resource settings associated with the CSI reporting configuration are indicated by another CSI reporting configuration that is associated with and different from the CSI reporting configuration.

6. The UE of claim 1, wherein the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, wherein the first TRS resource set and the second TRS resource set are configured for the CSI reporting to have the same time-domain behavior, the same time-domain behavior including periodic CSI reporting, semi-persistent CSI reporting, or non-periodic CSI reporting.

7. The UE according to claim 1, wherein the plurality of TRS resource sets includes a first TRS resource set having a first periodicity and a second TRS resource set having a second periodicity, wherein the second periodicity is equal to the first periodicity or a multiple of the first periodicity.

8. The UE of claim 1, wherein the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, wherein the first TRS resource set and the second TRS resource set are configured with one or more of the same quasi-colocation (QCL) characteristics related to Doppler drift, Doppler spread, average delay, delay spread, receive (Rx) spatial filter or average gain.

9. The UE according to claim 1, wherein the plurality of TRS resource sets include a first TRS resource set and a second TRS resource set, wherein the first TRS resource set and the second TRS resource set are configured with the same frequency domain resources.

10. The UE of claim 9, wherein the frequency domain resources for the first TRS resource set and the frequency domain resources for the second TRS resource set comprise the same physical resource block (PRB) or the same resource element within the PRB.

11. The UE of claim 1, wherein the CSI report and the CSI report measurement are generated by a plurality of CSI processing units (CPUs), and wherein the number of CPUs is equal to the number of TRS resource sets.

12. A method for wireless communication between a base station and a user equipment (UE) in a wireless system, the method comprising: A Channel State Information (CSI) report configuration is generated to configure a CSI report, wherein the CSI report configuration includes indicators associated with multiple Tracking Reference Signal (TRS) resource sets for measuring the Time Domain Channel Characteristics (TDCP) of the channel between the UE and the base station, wherein the TRS resource sets include at least two symbols in the time slots for the CSI Reference Signal (CSI-RS), wherein the time slots are repeated to form multiple time slots with periodicity; Determine the CSI resource settings associated with the CSI report configuration for configuring the plurality of TRS resource sets; Send the CSI report configuration and the CSI resource settings to the UE; CSI reference signals (CSI-RS) are transmitted over the multiple TRS resource sets. as well as Receive the CSI report generated by the UE based on CSI report measurements performed on the CSI-RS over the plurality of TRS resource sets.

13. The method of claim 12, wherein each of the plurality of TRS resource sets is an NZP-CSI-RS-resource set configured with the same configuration parameters.

14. The method of claim 12, wherein the CSI resource settings associated with the CSI report configuration are indicated by parameters included in the CSI report configuration.

15. The method of claim 12, wherein the CSI resource settings associated with the CSI reporting configuration are indicated by another CSI reporting configuration that is associated with and different from the CSI reporting configuration.

16. The method of claim 12, wherein the plurality of TRS resource sets includes a first TRS resource set and a second TRS resource set, wherein the first TRS resource set and the second TRS resource set are configured with the same time-domain behavior.

17. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a base station, cause the base station to perform an operation, the operation comprising: A Channel State Information (CSI) report configuration is generated to configure a CSI report, wherein the CSI report configuration includes indicators associated with multiple Tracking Reference Signal (TRS) resource sets for measuring the Time Domain Channel Characteristics (TDCP) of the channel between the UE and the base station, wherein the TRS resource sets include at least two symbols in the time slots for the CSI Reference Signal (CSI-RS), wherein the time slots are repeated to form multiple time slots with periodicity; Determine the CSI resource settings associated with the CSI report configuration for configuring the plurality of TRS resource sets; Send the CSI report configuration and the CSI resource settings to the UE; CSI reference signals (CSI-RS) are transmitted over the multiple TRS resource sets. as well as Receive the CSI report generated by the UE based on CSI report measurements performed on the CSI-RS over the plurality of TRS resource sets.

18. The non-transitory computer-readable medium of claim 17, wherein the CSI resource settings associated with the CSI report configuration are included in the CSI resource configuration associated with the CSI report configuration.

19. The non-transitory computer-readable medium of claim 17, wherein the CSI resource settings associated with the CSI report configuration are indicated by parameters included in the CSI report configuration.

20. The non-transitory computer-readable medium of claim 17, wherein the CSI resource settings associated with the CSI report configuration are indicated by another CSI report configuration that is associated with and different from the CSI report configuration.

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