Control signaling for time domain channel characteristic reporting for network energy saving

Abstract

This disclosure provides systems, apparatus, equipment, and methods for time-domain channel characteristic reporting for network energy saving, including computer programs encoded on a storage medium. A UE (102) receives (510) a configuration for a CSI report from a network entity (104), the configuration including one or more CSI report sub-configurations and CSI-RS resources. The UE (102) receives from the network entity (104) a signal that triggers at least one of the one or more CSI report sub-configurations. The UE (102) receives (530) a CSI-RS indicated by at least one of the one or more CSI report sub-configurations from the network entity (104). The UE (102) sends (550) a CSI report based on the CSI-RS to the network entity (104), the CSI report including a TDCP report associated with at least one of the one or more CSI report sub-configurations.

Description

Technical Field

[0001] This disclosure generally relates to wireless communications, and more specifically to a method for control signaling for time-domain channel characteristic reporting for network power saving. Summary of the Invention

[0002] The 3rd Generation Partnership Project (3GPP) defines the radio interface known as Fifth Generation (5G) New Radio (NR) (5G NR). The architecture of a 5G NR wireless communication system includes a 5G core (5GC) network, a 5G radio access network (5G-RAN), user equipment (UE), and more. Compared to previous generation cellular communication systems, the 5G NR architecture seeks to provide increased data rates, reduced latency, and / or increased capacity.

[0003] The following is a simplified overview of one or more aspects to provide a basic understanding of such aspects. This overview is not a comprehensive summary of all anticipated aspects. It neither identifies key or important elements of all aspects nor describes the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed descriptions that follow.

[0004] The time-varying nature of the channel between a network entity and a user equipment (UE) (e.g., a measure of how quickly the channel changes over time) is a key characteristic that enables the network entity to configure parameters to optimize performance. In multiple-input multiple-output (MIMO) communication systems, channel state information (CSI) provides the network entity with information for selecting a digital precoder for the UE. The network entity configures the time-domain channel characteristics (TDCP) report via CSI report configuration. TDCP helps the network entity select a precoder. For example, when the time-varying nature of the channel is above a threshold, the time-varying channel information indicated by the TDCP report can allow the network entity to switch from a Type II codebook to a Type I codebook.

[0005] The network entity configures a Tracking Reference Signal (TRS) resource set as a Channel Measurement Resource (CMR). The network entity sends a subset of the TRS to the UE so that the UE can determine the correlation and / or phase between channels in terms of time delay. The TRS resource set may be referred to as the Channel State Information Reference Signal (CSI-RS) resource set configured for tracking. The TRS resource is a single-port CSI-RS resource. The UE calculates and reports in its TDCP report one or more wideband channel correlations and / or phases configured by the network entity for each delay. The network entity may trigger the UE to send aperiodic TDCP reports via the Physical Uplink Shared Channel (PUSCH).

[0006] According to some aspects, the UE receives a CSI report configuration from a network entity, which includes at least one CSI report sub-configuration indicating CSI-RS resources. The UE receives a DCI indicating a subset of the at least one CSI report sub-configuration from the network entity. The UE receives CSI-RS indicated by the subset of the at least one CSI report sub-configuration from the network entity. The UE sends a CSI report to the network entity, which includes a TDCP report associated with the subset of the at least one CSI report sub-configuration.

[0007] According to some aspects, the network entity sends a CSI report to the UE in a configuration that includes at least one CSI reporting sub-configuration indicating CSI-RS resources. The network entity sends a DCI to the UE indicating a subset of the at least one CSI reporting sub-configuration. The network entity sends a CSI-RS indicated by the subset of the at least one CSI reporting sub-configuration to the UE. The network entity receives a CSI report from the UE, which includes a TDCP report associated with the subset of the at least one CSI reporting sub-configuration.

[0008] The technical benefits of this disclosure include reduced power consumption at network entities and improved uplink coverage and performance. Attached Figure Description

[0009] Figure 1 The illustration shows a wireless communication system according to an embodiment, which includes multiple user equipment (UEs) and network entities communicating through one or more cells.

[0010] Figure 2 A diagram illustrating an example CSI report configuration and CSI report according to an embodiment is shown.

[0011] Figure 3 A diagram illustrating an example CSI report configuration and CSI report for Space Domain Network Energy Saving (SD-NES) and Power Domain Network Energy Saving (PD-NES) according to an embodiment is shown.

[0012] Figure 4A A network physical antenna is shown according to an embodiment, in which all antenna elements are turned on.

[0013] Figure 4B A network entity antenna according to an embodiment is shown in which a subset of antenna elements is turned on for power saving.

[0014] Figure 5 This is a signaling diagram illustrating the communication between a UE reporting TDCP and a network entity according to an embodiment.

[0015] Figure 6 This is a flowchart of a method for a UE to report TDCP according to an embodiment.

[0016] Figure 7 This is a flowchart of a method for configuring a TDCP report by a network entity according to an embodiment.

[0017] Figure 8 A diagram illustrating an example CSI report configuration and a CSI resource subset indicator according to an embodiment is shown.

[0018] Figure 9 A diagram illustrating an example CSI report configuration and CSI resource set indicator according to an embodiment is shown.

[0019] Figure 10 shows a diagram of an example CSI report configuration according to an embodiment, where TDCP is used as a common reporting volume.

[0020] Figure 11 A diagram illustrating an example CSI reporting configuration according to an embodiment is shown, where TDCP, delay parameters, and phase are common reporting quantities.

[0021] Figure 12 This is a flowchart of a wireless communication method at the UE according to an embodiment.

[0022] Figure 13 This is a flowchart of a method for wireless communication at a network entity according to an embodiment.

[0023] Figure 14 This is a diagram illustrating a hardware implementation of an example UE device according to some embodiments.

[0024] Figure 15 This is a diagram illustrating hardware implementations for one or more example network entities according to some embodiments.

[0025] exist Figures 1 to 15 In the accompanying drawings, the same reference numerals refer to the same actions. Detailed Implementation

[0026] Figure 1Figure 100 illustrates a wireless communication system associated with multiple cells 190. The wireless communication system includes user equipment (UE) 102 and base station / network entity 104. Some base stations may include an aggregated base station architecture, and others may include a decomposed base station architecture. The aggregated base station architecture utilizes a radio protocol stack physically or logically integrated within a single radio access network (RAN) node. The decomposed base station architecture utilizes a protocol stack physically or logically distributed across two or more units (e.g., radio unit (RU) 106, distributed unit (DU) 108, central unit (CU) 110). For example, CU 110 is implemented within a RAN node, and one or more DU 108s may be located in the same location as CU 110, or alternatively, may be geographically or virtually distributed across one or more other RAN nodes. DU 108 may be implemented to communicate with one or more RU 106s. Any of RU 106, DU 108, and CU 110 can be implemented as a virtual unit, such as a virtual radio unit (VRU), a virtual distributed unit (VDU), or a virtual central unit (VCU). Base station / network entity 104 (e.g., an aggregated base station or a decomposed unit of a base station, such as RU 106 or DU 108) can be referred to as a transmit receiver point (TRP).

[0027] The operation and / or network design of base station 104 can be based on the aggregation characteristics of base station functionality. For example, a decomposed base station architecture can be utilized in an Integrated Access Backhaul (IAB) network, an Open Radio Access Network (O-RAN) network, or a Virtual Radio Access Network (vRAN) (which may also be referred to as a Cloud Radio Access Network (C-RAN)). Decomposition can include distributing functionality across two or more units in various physical locations, as well as virtually distributing functionality for at least one unit, which allows for flexibility in network design. Various units in a decomposed base station architecture or a decomposed RAN architecture can be configured to communicate with at least one other unit via wired or wireless communication. For example, base stations 104d, 104e and / or RUs 106a, 106b, 106c, 106d can communicate with UEs 102a, 102b, 102c, 102d and / or 102s via one or more radio frequency (RF) access links based on a Uu interface. In the example, multiple RUs 106 and / or base stations 104 can simultaneously serve UE 102, such as through intra-cell and / or inter-cell access links between UE 102 and RUs 106 / base stations 104.

[0028] RU 106, DU 108, and CU 110 may include (or may be coupled to) one or more interfaces configured to transmit or receive information / signals via wired or wireless transmission media. For example, a wired interface may be configured to transmit or receive information / signals via a wired transmission media—such as a fronthaul link 160 between RU 106d and a baseband unit (BBU) 112 of base station 104d associated with cell 190d. BBU 112 includes DU 108 and CU 110, and may also have a wired interface (e.g., a midhaul link) configured between DU 108 and CU 110 to transmit or receive information / signals between DU 108 and CU 110. In a further example, a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) may be configured to transmit and / or receive information / signals via a wireless transmission medium, such as information transmitted between RU 106a in cell 190a and base station 104e in cell 190e via inter-cell communication beams 136-138 of RU 106a and base station 104e.

[0029] RU 106 can be configured to implement low-level functionality. For example, RU 106 is controlled by DU 108 and can correspond to a logical node that manages RF processing functions or low-level PHY functionality, such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction, and filtering. The functionality of RU 106 can be based on functional partitioning, such as low-level functional partitioning.

[0030] RU 106 can send or receive over-the-air (OTA) communications with one or more UEs 102. For example, RU 106b of cell 190b communicates with UE 102b of cell 190b via a first communication beamset 132 of RU 106b and a second communication beamset 134b of UE 102b, which may correspond to inter-cell communication beams or, in some examples, inter-cell communication beams. For example, UE 102b of cell 190b can communicate with RU 106a of cell 190a via a third communication beamset 134a of UE 102b and a fourth communication beamset 136 of RU 106a. DU 108 can control the real-time and non-real-time characteristics of control plane and user plane communications of RU 106.

[0031] Any combination of RU 106, DU 108, and CU 110, or a reference to them individually, may correspond to base station 104. Therefore, base station 104 may include at least one of RU 106, DU 108, or CU 110. Base station 104 provides UE 102 with access to the core network. Base station 104 may relay communication between UE 102 and the core network (not shown). Base station 104 may be associated with macro cells of high-power cellular base stations and / or small cells of low-power cellular base stations. For example, cell 190e may correspond to a macro cell, while cells 190a-190d may correspond to small cells. Small cells include femtocells, picocells, microcells, etc. A network including at least one macro cell and at least one small cell may be referred to as a "heterogeneous network".

[0032] Transmissions from UE 102 to base station 104 / RU 106 are called uplink (UL) transmissions, while transmissions from base station 104 / RU 106 to UE 102 are called downlink (DL) transmissions. Uplink transmissions can also be called reverse link transmissions, and downlink transmissions can also be called forward link transmissions. For example, RU 106d uses the antenna of base station 104d in cell 190d to send downlink / forward link communication to UE 102d, or receive uplink / reverse link communication from UE 102d, based on the Uu interface associated with the access link between UE 102d and base station 104d / RU 106d.

[0033] The communication link between UE 102 and base station 104 / RU 106 can be based on multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link can be associated with one or more carriers. UE 102 and base station 104 / RU 106 can utilize up to a total of Yx Each carrier allocated in MHz carrier aggregation Y Spectral bandwidths of MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, 800 MHz, 1600 MHz, 2000 MHz, etc.), where x Each component carrier (CC) is used for communication in each of the uplink and downlink directions. The carriers may or may not be adjacent to each other along the spectrum. In the example, uplink and downlink carriers may be allocated asymmetrically, with more or fewer carriers allocated to the uplink or downlink. A component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be associated with a primary cell (PCell), and the secondary component carriers may be associated with secondary cells (SCells).

[0034] Some UEs, such as UEs 102a and 102s, can perform device-to-device (D2D) communication via sidelinks. For example, sidelink / D2D communication utilizes the spectrum of a wireless wide area network (WWAN) associated with uplink and downlink communication. Such sidelink / D2D communication can be performed by various wireless communication systems such as Wi-Fi, Bluetooth, LTE, and NR systems.

[0035] UE 102 and base station 104 / RU 106 may each include multiple antennas. These multiple antennas may correspond to antenna elements, antenna panels, and / or antenna arrays that facilitate beamforming operation. For example, RU 106b transmits downlink beamforming signals to UE 102b based on a first communication beamset 132 in one or more transmit directions of RU 106b. UE 102b may receive downlink beamforming signals from RU 106b based on a second communication beamset 134b in one or more receive directions of UE 102b. In a further example, UE 102b may also transmit uplink beamforming signals (e.g., sounding reference signals (SRS)) to RU 106b based on the second communication beamset 134b in one or more transmit directions of UE 102b. RU 106b may receive uplink beamforming signals from UE 102b in one or more receive directions of RU 106b. UE 102b can perform beamforming to determine the optimal reception and transmission directions for the beamformed signal. The transmission and reception directions of UE 102 and base station 104 / RU 106 can be the same or different.

[0036] In a further example, the beamforming signal can be transmitted between the first base station / RU 106a and the second base station 104e. For example, base station 104e of cell 190e can transmit the beamforming signal to RU 106a based on communication beam 138 in one or more transmit directions of base station 104e. RU 106a can receive the beamforming signal from base station 104e of cell 190e based on RU communication beam 136 in one or more receive directions of RU 106a. In a further example, base station 104e transmits a downlink beamforming signal to UE 102e based on communication beam 138 in one or more transmit directions of base station 104e. UE 102e receives the downlink beamforming signal from base station 104e based on UE communication beam 130 in one or more receive directions of UE 102e. UE 102e can also transmit uplink beamforming signals to base station 104e in one or more transmission directions of UE 102e based on UE communication beam 130, so that base station 104e can receive uplink beamforming signals from UE 102e in one or more reception directions of base station 104e.

[0037] Base station 104 may include and / or be referred to as a network entity. That is, "network entity" may refer to base station 104 or at least one element of base station 104, such as RU 106, DU 108, and / or CU 110. Base station 104 may also include and / or be referred to as Next Generation Evolved Node B (ng-eNB), Next Generation NB (gNB), Evolved NB (eNB), access point, base transceiver, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP, network node, network device, or other related terms. Base station 104 or the entity at base station 104 may be implemented as an IAB node, relay node, sidelink node, aggregated (monolithic) base station, or a decomposed base station including one or more RU 106, DU 108, and / or CU 110. Aggregated or decomposed base station sets may be referred to as Next Generation Radio Access Network (NG-RAN). In some examples, UE 102a operates in dual connectivity (DC) with base station 104e and base station / RU 106a. In such a case, base station 104e can be the primary node, and base station / RU 106a can be the secondary node.

[0038] Uplink / downlink signaling can also be communicated via a Satellite Positioning System (SPS) 114. In the example, the SPS 114 associated with cell 190c can communicate with one or more UEs 102 (such as UE 102c) and one or more base stations 104 / RU 106 (such as RU 106c). The SPS 114 can correspond to one or more of Global Navigation Satellite Systems (GNSS), Global Positioning Systems (GPS), Non-Terrestrial Networks (NTN), or other satellite positioning / location systems. The SPS 114 can be associated with LTE signals, NR signals (e.g., based on round-trip time (RTT) and / or multiple RTTs), wireless local area network (WLAN) signals, terrestrial beacon systems (TBS), sensor-based information, NR Enhanced Cell ID (NR E-CID) technology, downlink angle of departure (DL-AoD), downlink time difference of arrival (DL-TDOA), uplink time difference of arrival (UL-TDOA), uplink angle of arrival (UL-AoA), and / or other systems, signals, or sensors.

[0039] Still referencing Figure 1 In some respects, any of the UEs 102 may include a TDCP reporting component 140 configured to: receive a CSI report from network entity 104, the configuration including one or more CSI reporting sub-configurations and CSI-RS resources; receive from network entity 104 a signal that triggers at least one of the one or more CSI reporting sub-configurations; receive from network entity 104 a CSI-RS indicated by at least one of the one or more CSI reporting sub-configurations; and send a CSI report based on the CSI-RS to network entity 104, the CSI report including a TDCP report associated with at least one of the one or more CSI reporting sub-configurations.

[0040] In some aspects, any one of the base stations 104 or the network entity of the base station 104 may include: a TDCP configuration component 150 configured to: send a CSI report to the UE 102, the configuration including one or more CSI report sub-configurations and CSI-RS resources; send a signal to the UE 102 to trigger at least one of the one or more CSI report sub-configurations; send a CSI-RS indicated by at least one of the one or more CSI report sub-configurations to the UE 102; and receive a CSI report based on CSI-RS from the UE 102, the CSI report including a TDCP report associated with at least one of the one or more CSI report sub-configurations.

[0041] therefore, Figure 1 A wireless communication system that can be implemented in conjunction with one or more other figures described herein is described. Furthermore, although the following description may focus on 5G NR, the concepts described herein are applicable to other similar fields, such as 5G Advanced and future versions, LTE, LTE Advanced (LTE-A), and other wireless technologies such as 6G.

[0042] Figure 2 Figure 200 illustrates an example CSI report configuration 202 (e.g., a conventional CSI report configuration) and a CSI report 211 according to an embodiment. In some aspects, network entities base their CSI report configuration 202 on (e.g., via RRC signaling) CSI- ReportConfig Configure CSI report 211. CSI report 211 can be configured to report TDCP 208 based on the reporting amount 207 set to TDCP. Throughout this specification, CSI reports including TDCP may be referred to as CSI reports, TDCP reports, or CSI / TDCP reports. The network entity configures one or more CSI-RS resource sets 203, 204, 205 used for channel measurements as Tracking Reference Signals (TRS). The TRS resource set can be a single-port CSI-RS resource set configured for tracking (e.g., configured with RRC parameters). trs-Info The UE calculates and reports the wideband channel correlation of one or more delays 206 configured by the network entity. The network entity may (e.g., via DCI) trigger the UE to send an aperiodic CSI report 211 containing TDCP 208 via the Physical Uplink Shared Channel (PUSCH). The UE may report TDCP 208a, 208b, and 208c for each of delays 206 d1, 206 d2, and 206 d3, respectively. The UE may report TDCP 208a, 208b, and 208c via PUSCH on CSI Part 1.

[0043] Figure 3 Figure 300 illustrates example CSI report configurations 302 and 311 for Space Domain Network Energy Saving (SD-NES) and Power Domain Network Energy Saving (PD-NES) according to embodiments. For NES, network entities can configure CSI report configuration 302. l (For example, l >1) CSI report sub-configuration 306. A network entity (e.g., via DCI) triggers a UE report. n (For example, 1≤ n ≤ l ) 311 CSI reports, which include 311 CSI reports. nThe TDCP report 307 corresponds to the CSI report sub-configuration 306. Network entities can configure CSI report configuration 302 based on Type 1 SD-NES, Type 2 SD-NES, and / or PD-NES.

[0044] For Type 1 SD-NES, the network entity configures CSI-RS resource 303 as CMR in CSI report configuration 302, and configures port subset indicators (e.g., ...) in each CSI report sub-configuration 306. port-subsetIndicator The CSI report 311 indicates the subset of antenna ports configured for the CSI-RS resources. The UE calculates the CSI for each CSI report sub-configuration 306 based on the indicated subset of antenna ports used for the CSI-RS resources configured in the CSI report configuration 302. Network entities can determine which subset of antenna ports is used to transmit downlink communication based on the CSI report 311. Network entities can select a subset of antenna ports with a smaller number of antenna ports to transmit downlink communication for energy saving.

[0045] For Type 2 SD-NES, the network entity configures CSI-RS resource 303 as a CMR in CSI report configuration 302, and configures a list of CSI-RS resource indexes indicating a subset of CSI-RS resources in each CSI report sub-configuration 306 (e.g., nzp-CSI-RS-resourceList A subset of CSI-RS resources can have the same number of antenna ports, with varying numbers of antenna elements enabled, as shown in the reference. Figure 4A and Figure 4B The UE calculates the CSI for each CSI report subconfiguration 306 based on a subset of CSI-RS resources. The network entity can determine which antenna elements to enable for downlink communication based on the CSI report 311. The network entity can enable a smaller number of antenna elements to transmit downlink communication for energy saving.

[0046] For PD-NES, the network entity configures CSI-RS resources 303 and a first power offset between the PDSCH and CSI-RS for each CSI-RS resource 303 in CSI report configuration 302. The network entity can configure a second (e.g., additional) power offset between the PDSCH and CSI-RS in each CSI report sub-configuration 306. powerOffsetThe UE calculates the CSI for each CSI report sub-configuration 306 based on the total power offset (first power offset plus second power offset). The first power offset can be the actual power offset between the PDSCH and CSI-RS, while the second power offset can be a hypothetical power offset used for CSI calculation. The network entity can determine whether to reduce the transmit power of downlink communication based on the CSI report 311. In some aspects, the network entity can configure CSI reporting configuration 302 for SD-NES only, PD-NES only, or jointly for SD-NES and PD-NES.

[0047] In some aspects, network entities transmit CSI-RS to the UE in the configured CSI-RS resources 303a-303d. CSI-RS resources 303a-303d correspond to resource elements (e.g., time / frequency resources) configured by CSI report configuration 302. When the UE receives a trigger (e.g., a DCI signal), the UE determines channel correlation and / or phase based on the measurements of the CSI-RS in CSI-RS resources 303a-303d configured for each CSI report sub-configuration in CSI report sub-configuration 306. Figure 3 In a non-restrictive example, CSI report 311 includes TDCP report 307a corresponding to CSI report sub-configuration 306a, TDCP report 307b corresponding to CSI report sub-configuration 306b, and TDCP report 307n corresponding to CSI report sub-configuration 306l-1.

[0048] Figure 4A Figure 400 shows a network entity antenna 411a in which all antenna elements are turned on according to an embodiment. Figure 4B Figure 401 illustrates a network entity antenna 411b according to an embodiment, wherein a subset of antenna elements is turned on for power saving. In some aspects, antennas 411a and 411b may be MIMO antenna arrays that facilitate beamforming operation. Figure 4A In the example, when the network entity transmits with all antenna elements on, the transmission beam 412a can have a first beamwidth corresponding to the first channel characteristics. Figure 4BIn the example, when the network entity transmits with a subset of antenna elements on (e.g., one-quarter of the antenna elements on), the transmission beam 412b may have a second (e.g., wider) beamwidth corresponding to the second channel characteristics. When the network entity configures CSI reporting for Type 2 SD-NES, the UE reports the TDCP of the first channel characteristics (based on beam 412a) and the TDCP of the second channel characteristics (based on beam 412b). If the network entity determines based on the TDCP reports that the first and second channels are highly correlated, the network entity may transmit PDSCH based on the subset of antenna elements on for power saving. Additionally or alternatively, the network entity may signal to the UE to reduce the frequency of CSI reporting to reduce communication overhead.

[0049] Figure 5 This is a signaling diagram 500 illustrating communication between a UE 102 for reporting CSI / TDCP and a network entity 104 according to an embodiment. In some aspects, the UE 102 may optionally send a UE capability report (505) to the network entity 104, indicating support for CSI / TDCP reporting based on one or more CSI reporting sub-configurations. In this regard, the UE 102 may send the UE capability report (505) via PUCCH, PUSCH, uplink control information (UCI), or other suitable communication. The UE capability report indicates whether UE 102 supports TDCP reporting for a CSI reporting configuration with CSI reporting sub-configurations; the maximum number of CSI reporting sub-configurations in the CSI reporting configuration used for TDCP reporting; the maximum number of CSI reporting sub-configurations in all CCs in a component carrier (CC) or across a frequency band or frequency band combination; the maximum number of reported TDCP or delays for each CSI reporting sub-configuration; the maximum number of reported TDCP or delays for all CSI reporting sub-configurations across a CSI reporting configuration; and the maximum number of reported TDCP or delays for all CSI reporting sub-configurations across all CCs in a CC or across a frequency band or frequency band combination. UE 102 can report UE capabilities for Type 1 SD-NES, Type 2 SD-NES, and / or PD-NES individually or jointly.

[0050] Network entity 104 sends a 510 CSI report configuration to UE 102, which includes one or more CSI report sub-configurations and CSI-RS resources. At this point, network entity 104 communicates via RRC signaling (e.g., RRCReconfiguration or CSI-ReportConfigThe configuration for sending 510 CSI reports. The CSI report configuration may indicate one or more CSI-RS resource sets (e.g., non-zero power (NZP) CSI-RS resource sets), and the one or more CSI report sub-configurations include at least one of the following: one or more CSI-RS resource subset indicators indicating CSI-RS resources used for channel measurements; an indicator for the CSI-RS resource set used for channel measurements; the amount of delay for TDCP reporting; the delay value for TDCP reporting; and / or an indicator of whether the phase is reported in the TDCP report. Network entity 104 configures the reporting amount for TDCP.

[0051] In some respects, if resourceType If set to non-periodic, then network entity 104 can be configured with up to [number missing]. maxNrofNZP-CSI-RS-ResourceSetsPerConfig A resource set. If resourceType Set to periodic or semi-persistent, and groupBasedBeamReporting-v1710 Not configured, or reportQuantity Not set as an information element (IE) CSI-ReportConfig ' in tdcp ', then network entity 104 configures a resource set. If resourceType It is set to be periodic, and reportQuantity Set to ' tdcp If ', then network entity 104 can configure up to three NZP CSI-RS resource sets. If resourceType Set to periodic or semi-persistent, and groupBasedBeamReporting-v1710 If configured, network entity 104 configures two resource sets, which can be two NZP CSI-RS resource sets, two CSI-SSB resource sets, or one NZP CSI-RS resource set and one CSI-SSB resource set. In this case, the following applies: if the list of CSI report sub-configurations has one NZP CSI-RS resource set, then that resource set is indicated by a resource set indicator set to 0; if the list of CSI report sub-configurations has two NZP CSI-RS resource sets, then the first resource set is indicated by a resource set indicator set to 0, and the second resource set is indicated by a resource set indicator set to 1.

[0052] In an alternative embodiment, network entity 104 avoids configuring the CSI reporting configuration using a list of CSI reporting sub-configurations and a reporting quantity set to TDCP. Instead, network entity 104 uses a list of CSI reporting sub-configurations to configure the CSI reporting configuration, and the reporting quantity includes at least a rank indicator (RI). UE 102 may not expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations and a reporting quantity set to TDCP. Instead, UE 102 may expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations, and the reporting quantity includes at least an RI.

[0053] In some respects, if UE 102 is configured to include parameters from higher layers... csi-ReportSubConfigList The list of sub-configurations provided CSI-ReportConfig Therefore, UE 102 does not expect higher-level parameters. reportQuantity It is set to 'tdcp'. In another example, if UE 102 is configured with parameters from higher layers... csi- ReportSubConfigList The list of sub-configurations provided CSI-ReportConfig Therefore, UE 102 does not expect higher-level parameters. reportQuantity It can be set to 'tdcp', 'cri-RSRP', 'cri-SINR', or 'cri-SINR-Index'.

[0054] In some respects, network entity 104 may avoid configuring the CSI reporting configuration using a list of CSI reporting sub-configurations including port subset indicators or CSI-RS resource subset indicators and a reporting quantity set to TDCP. Instead, network entity 104 may configure the CSI reporting configuration using a list of CSI reporting sub-configurations including port subset indicators or CSI-RS resource subset indicators, and the reporting quantity shall at least include RI. UE 102 may not expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations or CSI-RS resource subset indicators including port subset indicators and a reporting quantity set to TDCP. Instead, UE 102 may expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations including port subset indicators or CSI-RS resource subset indicators, and the reporting quantity shall at least include RI.

[0055] In some respects, network entity 104 may avoid configuring the CSI reporting configuration using a list of CSI reporting sub-configurations including an additional power offset and a reporting amount set to TDCP. Instead, network entity 104 may configure the CSI reporting configuration using a list of CSI reporting sub-configurations including an additional power offset, and the reporting amount shall at least include RI. UE 102 may not expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations including an additional power offset and a reporting amount set to TDCP. Instead, UE 102 may expect network entity 104 to configure the CSI reporting configuration using a list of CSI reporting sub-configurations including an additional power offset, and the reporting amount shall at least include RI.

[0056] In some respects, network entity 104 can avoid configuring the CSI report configuration using a list of TRS and CSI report sub-configurations for channel measurements. Instead, network entity 104 can configure the CSI report configuration using a list of CSI-RS and CSI report sub-configurations for CSI acquisition used for channel measurements. UE 102 may not expect network entity 104 to configure the CSI report configuration using a list of TRS and CSI report sub-configurations for channel measurements. Instead, UE 102 may expect network entity 104 to configure the CSI report configuration using a list of CSI-RS and CSI report sub-configurations for CSI acquisition used for channel measurements. The CSI-RS used for CSI acquisition is not configured in the CSI-RS resource set. trs-Info And no configuration. repetition CSI-RS.

[0057] Network entity 104 sends a signal 520 to UE 102 to trigger at least one CSI / TDCP report in the CSI report sub-configuration. At this point, network entity 104 sends the signal 520 to trigger at least one CSI / TDCP report via DCI.

[0058] Network entity 104 sends 530 CSI-RS (e.g., a single-port CSI-RS (TRS) configured for tracking) to UE 102 using the resources configured in the CSI report configuration. At this point, network entity 104 can send CSI-RS (530) periodically or aperiodically. When network entity 104 periodically sends 530 CSI-RS, it can send it before and / or after sending the DCI that triggers the CSI / TDCP report (520). When network entity 104 aperiodically sends 530 CSI-RS, it sends it after sending the DCI that triggers the CSI / TDCP report (520).

[0059] UE 102 determines the magnitude and / or phase difference of the correlation between 540 and the CSI-RS corresponding to the triggered CSI reporting sub-configuration. For example, if a delay is configured for four symbols, UE 102 determines the magnitude (e.g., a value between 0 and 1) of the channel correlation of 540 with the CSI-RS separated by four symbols in time. If the triggered CSI reporting sub-configuration indicates that phase should be reported, UE 102 determines the phase difference (e.g., a value between -180 degrees and 180 degrees) between the configured CSI-RS of 540 for each configured delay.

[0060] UE 102 sends a 550 CSI / TDCP report to network entity 104. This CSI / TDCP report indicates the CSI report sub-configuration identifier, the delay value, the magnitude of the correlation between the configured CSI-RS for each delay, and / or the phase difference between the configured CSI-RS for each configured delay. In some aspects, UE 102 sends the CSI / TDCP report as a first table listing the TDCP of the first triggered CSI sub-report, and then listing the TDCP of the next triggered CSI sub-report. If network entity 104 configures or triggers a CSI sub-report, UE 102 may report that CSI sub-report as a CSI report. For each CSI sub-report or CSI report, UE 102 may report the magnitude of the correlation in the TDCP from the first configured delay to the last configured delay, and the phase (if reported) in the TDCP from the first configured delay to the last delay. Alternatively, for each CSI sub-report or CSI report, UE 102 may report the magnitude and phase (if reported) of the correlation in the TDCP from the delay of the first configuration to the delay of the last configuration. In some aspects, UE 102 sends the CSI / TDCP report as a second table that first lists the magnitude of the TDCP of the triggered CSI sub-report and then reports the phase of the TDCP of the triggered CSI sub-report. The size of the CSI / TDCP report may vary based on the number of reported delays, the number of reported sub-configurations, and / or whether the phase is reported.

[0061] In some aspects, after a CSI report (re)configuration, serving cell activation, and / or bandwidth portion (BWP) change, UE 102 sends a CSI / TDCP report or sub-report no later than after the CSI reference resource receives at least one CSI-RS transmission opportunity for each CSI-RS resource of the configured TRS set for all triggered or configured CSI sub-configurations for channel measurements, otherwise discarding the report. After a CSI-RS (re)configuration or Transmission Configuration Indication (TCI) (re)configuration for a TRS configured for channel measurements, UE 102 sends a CSI / TDCP report or sub-report no later than after the CSI reference resource receives at least one CSI-RS transmission opportunity for each CSI-RS resource of the configured TRS set for all triggered (e.g., triggered by DCI at step 520) or configured CSI sub-configurations (e.g., configured at step 510) for channel measurements, otherwise discarding the report.

[0062] In some aspects, if Discontinuous Reception (DRX) is configured, if UE 102 receives at least one CSI-RS transmission opportunity for each CSI-RS resource of the configured TRS set for channel measurement for all triggered (e.g., triggered by DCI at step 520) or configured (e.g., configured at step 510) CSI reference resources during the DRX activity period, UE 102 sends the CSI / TDCP report or sub-report; otherwise, the report is discarded.

[0063] In some respects, for periodic CSI / TDCP reports, network entity 104 and / or UE 102 may determine the CSI reference resource based on the total number of CSI-RS resources configured for channel measurements corresponding to the configured CSI report sub-configuration. For semi-persistent CSI / TDCP reports or non-periodic CSI reports, network entity 104 and / or UE 102 may determine the CSI reference resource based on the total number of CSI-RS resources configured for channel measurements corresponding to the triggered CSI report sub-configuration.

[0064] In some respects, CSI reference resources appear before the time slots used to transmit CSI / TDCP reports. In the frequency domain, CSI reference resources are defined by a set of downlink physical resource blocks corresponding to the frequency band covered by the derived CSI. In the time domain, uplink time slots... n' The CSI reference resource used for CSI / TDCP reporting consists of a single downlink time slot. definition, in It is a parameter configured by a higher layer (e.g., as specified in Clause 4.2 of 3GPP TS 38.213), and in which yes The subcarrier spacing configuration, for frequency range 1, has a value of '0'. For periodic and semi-persistent CSI / TDCP reports, if a single CSI-RS / SSB resource is configured for channel measurements corresponding to all configured or triggered CSI subconfigurations, then... n CSI_ref Is greater than or equal to The minimum value of such that it corresponds to an effective downlink time slot, or if multiple CSI-RS / SSB resources are configured for channel measurements corresponding to all configured or triggered CSI sub-configurations, then n CSI_ref Is greater than or equal to The minimum value of is such that it corresponds to an effective downlink time slot.

[0065] Figure 6 A flowchart 600 illustrates a method for wireless communication at the UE. (Reference) Figure 1 , Figure 5 and Figure 14 This method can be executed by UE 102 or UE 1402.

[0066] The UE sends a 605 report to the network entity detailing the supported UE capabilities for a TDCP report with CSI sub-configuration. For example, refer to... Figure 5 UE 102 sends 505 to network entity 104 for the TDCP report of the supported UE capabilities with CSI sub-configuration.

[0067] The UE receives configuration information from the network entity for a TDCP report with CSI sub-configuration, 610. For example, refer to... Figure 5 UE102 receives 510 configuration for TDCP reports with CSI sub-configuration from network entity 104.

[0068] The UE receives a 620 DCI from the network entity to trigger a TDCP report for one or more CSI report sub-configurations. For example, refer to Figure 5 UE 102 receives a signal 520 from network entity 104 to trigger a TDCP report for one or more CSI report sub-configurations.

[0069] The UE receives 630 of the configured CSI-RS resource sets for TDCP reporting from the network entity. For example, refer to Figure 5 UE102 receives 530 configured CSI-RS resource sets for TDCP reporting from network entity 104.

[0070] The UE determines the magnitude and / or phase difference of the correlation of the 640 CSI-RS. For example, reference Figure 5 UE 102 determines the magnitude and / or phase difference of the correlation of 540CSI-RS.

[0071] The UE sends a 650 CSI / TDCP report to the network entity, which contains one or more TDCP sub-reports configured for the triggered CSI report sub-configuration. For example, refer to... Figure 5 UE 102 sends a 550 CSI / TDCP report to network entity 104, which has one or more TDCP sub-reports configured for the triggered CSI report sub-configuration.

[0072] Figure 7 A flowchart 700 illustrates a method for wireless communication at a network entity. (Reference) Figure 1 , Figure 5 and Figure 15 This method can be executed by network entity 104 or network entity 1504.

[0073] The network entity receives UE capabilities from the UE using 705 for TDCP reports with supported configurations of CSI sub-configuration. For example, refer to... Figure 5 Network entity 104 receives 505 from UE 102 for the UE capabilities of the supported configuration in the TDCP report with CSI sub-configuration.

[0074] The network entity sends 710 to the UE for the configuration of a TDCP report with CSI sub-configuration. For example, refer to Figure 5 Network entity 104 sends 510 to UE 102 for the configuration of TDCP report with CSI sub-configuration.

[0075] The network entity sends a 720 DCI to the UE to trigger a TDCP report for one or more CSI report sub-configurations. For example, refer to Figure 5 Network entity 104 sends 520 to UE 102 to trigger DCI for TDCP reporting configured for one or more CSI reporting sub-configurations.

[0076] The network entity sends the configured CSI-RS resource set (730) for TDCP reporting to the UE. For example, refer to... Figure 5 Network entity 104 sends 530 configured CSI-RS resource sets for TDCP reporting to UE 102.

[0077] The network entity receives a 750 TDCP report from the UE, which contains one or more TDCP sub-reports configured for the triggered CSI report sub-configuration. For example, refer to... Figure 5 Network entity 104 receives 550 TDCP reports from UE 102, which have one or more TDCP sub-reports configured for the triggered CSI report sub-configuration.

[0078] Figure 8 Figure 800 illustrates an example CSI report configuration 802 and a CSI resource subset indicator 808 according to an embodiment. In some aspects, the network entity configures the CSI resource subset indicator 808 in the CSI report subconfiguration, which indicates a subset of CSI-RS resources configured for channel measurements.

[0079] In some respects, the CSI resource subset indicator 808 is a bitmap, such as Figure 8 The example is shown. The size of the bitmap is the (maximum) number of CSI-RS resources across the configured CSI-RS resource set used for channel measurements. The CSI resource subset indicator 808 can be based first on the order of the CSI-RS resource sets, and then on the CSI-RS resource index within the CSI-RS resource set. Alternatively, the CSI resource subset indicator 808 can be based on the order of the CSI-RS resource IDs across the CSI-RS resource set. A first state of bit x (e.g., "0") can indicate that no CSI-RS resource x across the CSI-RS resource set used for channel measurements has been selected, and a second state of bit x (e.g., "1") can indicate that a CSI-RS resource x across the CSI-RS resource set used for channel measurements has been selected. Figure 8 In the non-restrictive example, the example bitmap “100000001111” indicates that CSI-RS resources 803a and 805a-805d are selected for channel measurement, while CSI-RS resources 803b-803d and 804a-804d are not selected for channel measurement.

[0080] In some respects, the CSI resource subset indicator 808 indicates the CSI-RS resource index within the CSI-RS resource set used for channel measurements. The range of the indicator can then be from 1 to the (maximum) number of CSI-RS resources across the CSI-RS resource set used for channel measurements, or from 0 to the (maximum) number of CSI-RS resources across the CSI-RS resource set used for channel measurements minus 1. The CSI resource subset indicator 808 can be based first on the order of the CSI-RS resource sets, and then on the CSI-RS resource indexes within the CSI-RS resource sets. Alternatively, the CSI resource subset indicator 808 can be based on the order of the CSI-RS resource IDs across the CSI-RS resource sets.

[0081] In some respects, the CSI resource subset indicator 808 indicates the CSI-RS resource IDs configured in the CSI-RS resource set used for channel measurements. The range of the CSI resource subset indicator 808 can then be from 1 to the maximum number of CSI-RS resource IDs multiplied by the maximum number of CSI-RS resources across the CSI-RS resource set used for channel measurements, or from 0 to the maximum number of CSI-RS resource IDs multiplied by the maximum number of CSI-RS resources across the CSI-RS resource set used for channel measurements minus 1.

[0082] Figure 9 Figure 900 illustrates an example CSI report configuration 902 and a CSI resource set indicator 909 according to an embodiment. In some aspects, the network entity configures the CSI resource set indicator 909 in the CSI report sub-configuration, which indicates the CSI-RS resource set configured for channel measurements.

[0083] exist Figure 8 In this context, CSI-RS resources are selected at the individual resource granularity, while... Figure 9 In the example, CSI-RS resources are selected at the CSI-RS resource set granularity. In some respects, the CSI resource set indicator 909 is a bitmap, such as... Figure 9 The example is shown. The size of the bitmap is the (maximum) number of CSI-RS resource sets configured for channel measurements. The CSI resource set indicator 909 can be based on the order of the CSI-RS resource set indices configured in the list of CSI-RS resources for channel measurements or the CSI-RS resource set ID. A first state of bit x (e.g., "0") can indicate that CSI-RS resource set x for channel measurements has not been selected for channel measurements, and a second state of bit x (e.g., "1") can indicate that CSI-RS resource set x for channel measurements has been selected for channel measurements. In some aspects, the CSI resource set indicator 909 indicates a list of CSI-RS resource set indices configured in the list of CSI-RS resources for channel measurements. In some aspects, the CSI resource set indicator 909 indicates the CSI-RS resource ID based on the configured CSI-RS resource sets for channel measurements. Figure 9 In a non-limiting example, example bitmap "101" indicates that CSI-RS resource sets 903 (e.g., CSI-RS resources 903a-903d) and 905 (e.g., CSI-RS resources 905a-905d) are selected for channel measurements, while CSI-RS resource set 904 (e.g., CSI-RS resources 904a-904d) is not selected for channel measurements.

[0084] Figure 10Figure 1000 illustrates an example CSI report configuration 1002 according to an embodiment, where TDCP is set as a common reporting quantity 1009. CSI report 1011 may include CSI sub-reports 1007a-1007n for CSI-RS resource sets 1003, 1004, and 1005. In some aspects, network entities may configure at least one of the following parameters in CSI report sub-configuration 1006: the number of reported delays in the TDCP report, indicating the number of reported TDCPs in the CSI sub-report 1007 corresponding to CSI report sub-configuration 1006; the delay value of the TDCP report (e.g., the number of symbols, the number of time slots, the number of subframes), indicating the delay of each TDCP report in the CSI sub-report 1007 corresponding to CSI report sub-configuration 1006; and whether the UE should also report a phase indicator in addition to the magnitude of the correlation of the CSI sub-report 1007 corresponding to CSI report sub-configuration 1006. In some respects, when a network entity configures the above parameters in CSI report sub-configuration 1007, the network entity can avoid configuring the same parameters in CSI report configuration 1002. In some respects, when a network entity configures the above parameters in CSI report sub-configuration 1006, the UE can ignore the same parameters in CSI report configuration 1002.

[0085] Figure 11 Figure 1100 illustrates an example CSI report configuration 1102 according to an embodiment, where TDCP, the number of delays, the value of the delay, and the phase report indicator are common reporting parameters 1109. CSI report 1111 may include CSI sub-reports 1107a-1107n for CSI-RS resource sets 1103, 1104, and 1105. CSI report sub-configuration 1106 may indicate a specific CSI-RS resource set for CSI sub-report 1107. In some aspects, network entities may configure the same number of CSI-RS resource sets in each configured or triggered CSI report sub-configuration 1107. Network entities may avoid configuring different numbers of CSI-RS resource sets in each configured or triggered CSI report sub-configuration 1106. Therefore, the UE may expect network entities to configure the same number of CSI-RS resource sets in each configured or triggered CSI report sub-configuration 1106.

[0086] In some aspects, the UE can determine whether to report the TDCP of the delay value in the CSI sub-report 1107 based on whether the CSI-RS resource set in the CSI report sub-configuration 1106 is transmitted with the same time slot or symbol offset configured by the delay value. If the CSI-RS resource set in the CSI report sub-configuration 1106 is not transmitted using the same time slot or symbol offset configured by the delay value, the UE may not report the TDCP corresponding to the delay, or the TDCP of the CSI report sub-configuration 1106, or the TDCP of the CSI report configuration 1102, or the UE may report an invalid TDCP based on a predefined value (e.g., 0). Otherwise, the UE may report the TDCP.

[0087] Figure 12 A flowchart 1200 illustrates a method for wireless communication at the UE. (Reference) Figure 1 , Figure 5 and Figure 14 This method can be performed by UE 102 and / or UE equipment 1402.

[0088] The UE (optionally) sends a 1205 indication to the network entity of the UE capabilities for the supported configurations of TDCP reports with CSI sub-configurations. For example, refer to... Figure 5 UE 102 (optionally) sends 505 UE capability to network entity 104, which indicates a support configuration for TDCP reporting with CSI sub-configuration.

[0089] The UE receives a configuration for a 1210 CSI report from a network entity. This configuration includes one or more CSI report sub-configurations and CSI-RS resources. For example, refer to... Figure 5 UE 102 receives a configuration for 510 CSI reports from network entity 104, which includes one or more CSI report sub-configurations and CSI-RS resources.

[0090] The UE receives a signal from a network entity 1220 that triggers at least one of one or more CSI reporting sub-configurations. For example, refer to Figure 5 UE 102 receives from network entity 104 a signal (e.g., DCI) that triggers at least one of one or more CSI reporting sub-configurations.

[0091] The UE receives a CSI-RS from a network entity, indicated by at least one of one or more CSI reporting sub-configurations. For example, refer to... Figure 5 UE 102 receives 530 CSI-RS from network entity 104, indicated by at least one of one or more CSI report sub-configurations.

[0092] The UE sends a 1250 CSI report to the network entity based on CSI-RS. This CSI report includes a TDCP report associated with at least one of the one or more CSI reporting sub-configurations. The UE can determine the magnitude and / or phase difference of the CSI-RS correlation of the CSI report. For example, referring to... Figure 5 The UE sends a 550 CSI-RS-based CSI report to network entity 104, which includes a TDCP report associated with at least one of the one or more CSI report sub-configurations.

[0093] Figure 12 A method is described from the UE side of the wireless communication link, while Figure 13 A method is described from the network side of the wireless communication link.

[0094] Figure 13 A flowchart 1300 illustrates a method for wireless communication at a network entity. (Reference) Figure 1 , Figure 5 and Figure 15 This method can be performed by network entity 104 and / or network entity 1504.

[0095] The network entity receives UE capabilities from the UE using 1305 for TDCP reports with supported configurations of CSI sub-configuration. For example, refer to... Figure 5 Network entity 104 receives 505 from UE 102 for UE capability to report TDCP with CSI sub-configuration.

[0096] The network entity sends a 1310 CSI report to the UE, which includes one or more CSI report sub-configurations and CSI-RS resources. For example, refer to... Figure 5 Network entity 104 is configured to send a 510 CSI report to UE 102. This configuration includes one or more CSI report sub-configurations and CSI-RS resources.

[0097] The network entity sends a signal to the UE that triggers at least one of one or more CSI reporting sub-configurations. For example, refer to Figure 5 Network entity 104 sends a signal (e.g., DCI) to UE 102 to trigger at least one of one or more CSI reporting sub-configurations.

[0098] The network entity sends a CSI-RS (1330) to the UE, indicated by at least one of the CSI reporting sub-configurations. For example, refer to... Figure 5Network entity 104 sends 530 CSI-RS to UE 102, which is indicated by at least one of the CSI report sub-configurations in one or more CSI report sub-configurations.

[0099] The network entity receives a 1350 CSI-RS-based CSI report from the UE. This CSI report includes a TDCP report associated with at least one of the one or more CSI reporting sub-configurations. For example, refer to... Figure 5 Network entity 104 receives 550 CSI reports based on CSI-RS from UE 102. The CSI reports include TDCP reports associated with at least one of the one or more CSI report sub-configurations.

[0100] Figure 14 Figure 1400 illustrates an example of a hardware implementation of UE device 1402. UE device 1402 may be UE 102, a component of UE 102, or may implement UE functions. UE device 1402 may include an application processor 1406, which may have on-chip memory 1406'. In the example, application processor 1406 may be coupled to a secure digital (SD) card 1408 and / or a display 1410. Application processor 1406 may also be coupled to a sensor module 1412, a power supply 1414, an additional memory module 1416, a camera 1418, and / or other related components.

[0101] The UE equipment 1402 may further include a wireless baseband processor 1426, which may be referred to as a modem. The wireless baseband processor 1426 may have on-chip memory 1426'. Together with and similarly to the application processor 1406, the wireless baseband processor 1426 may also be coupled to a sensor module 1412, a power supply 1414, an additional memory module 1416, a camera 1418, and / or other related components. The wireless baseband processor 1426 may additionally be coupled to one or more Subscriber Identity Module (SIM) cards 1420 and / or one or more transceivers 1430 (e.g., wireless RF transceivers).

[0102] Within one or more transceivers 1430, the UE equipment 1402 may include a Bluetooth module 1432, a WLAN module 1434, an SPS module 1436 (e.g., a GNSS module), and / or a cellular module 1438. The Bluetooth module 1432, WLAN module 1434, SPS module 1436, and cellular module 1438 may each include an on-chip transceiver (TRX), or in some cases, only a transmitter (TX) or only a receiver (RX). The Bluetooth module 1432, WLAN module 1434, SPS module 1436, and cellular module 1438 may each include a dedicated antenna and / or utilize antenna 1440 for communication with one or more other nodes. For example, UE equipment 1402 can communicate with another UE (e.g., sidelink communication) and / or with network entity 104 (e.g., uplink / downlink communication) via transceiver 1430 and antenna 1440, wherein network entity 104 may correspond to a base station or a unit of a base station (such as RU 106, DU 108 or CU 110).

[0103] The wireless baseband processor 1426 and application processor 1406 may each include computer-readable media / memory 1426' and 1406', respectively. An additional memory module 1416 may also be considered a computer-readable media / memory. Each computer-readable media / memory 1426', 1406', and 1416 may be non-transitory. The wireless baseband processor 1426 and application processor 1406 may each be responsible for general processing, including executing software stored on the computer-readable media / memory 1426', 1406', and 1416. When executed by the wireless baseband processor 1426 / application processor 1406, this software causes the wireless baseband processor 1426 / application processor 1406 to perform the various functions described herein. The computer-readable media / memory may also be used to store data manipulated by the wireless baseband processor 1426 / application processor 1406 during software execution. The wireless baseband processor 1426 / application processor 1406 may be a component of UE 102. UE equipment 1402 may be a processor chip (e.g., a modem and / or application) and includes only the wireless baseband processor 1426 and / or application processor 1406. In other examples, UE equipment 1402 may be the entire UE 102 and may include additional modules for equipment 1402.

[0104] like Figure 1 The discussion in the article and about Figure 12The implemented TDCP reporting component 140 is configured to: receive a CSI report from network entity 104, the configuration including one or more CSI reporting sub-configurations and CSI-RS resources; receive from network entity 104 a signal that triggers at least one of the one or more CSI reporting sub-configurations; receive from network entity 104 a CSI-RS indicated by at least one of the one or more CSI reporting sub-configurations; and send a CSI report based on CSI-RS to network entity 104, the CSI report including a TDCP report associated with at least one of the one or more CSI reporting sub-configurations.

[0105] The TDCP reporting component 140 may be located within application processor 1406 (e.g., at 140a), within wireless baseband processor 1426 (e.g., at 140b), or within both application processor 1406 and wireless baseband processor 1426. TDCP reporting components 140a to 140b may be one or more hardware components specifically configured to perform the stated process / algorithm, implemented by one or more processors configured to perform the stated process / algorithm, stored in a computer-readable medium for use by one or more processors, or a combination thereof.

[0106] Figure 15 Figure 1500 illustrates an example of a hardware implementation of one or more network entities 104. The one or more network entities 104 may be a base station, a component of a base station, or may implement base station functionality. The one or more network entities 104 may include or correspond to at least one of RU 106, DU 108, or CU 110. CU 110 may include a CU processor 1546, which may have on-chip memory 1546'. In some aspects, CU 110 may further include an additional memory module 1556 and / or a communication interface 1548, both of which may be coupled to the CU processor 1546. CU 110 may communicate with DU 108 via a midhaul link 162 (such as an F1 interface between the communication interface 1548 of CU 110 and the communication interface 1528 of DU 108).

[0107] DU 108 may include a DU processor 1526, which may have on-chip memory 1526'. In some aspects, DU 108 may further include an additional memory module 1536 and / or a communication interface 1528, both of which may be coupled to the DU processor 1526. DU 108 may communicate with RU 106 via a frontlink 160 between DU 108's communication interface 1528 and RU 106's communication interface 1508.

[0108] RU 106 may include an RU processor 1506, which may have on-chip memory 1506'. In some aspects, RU 106 may further include an additional memory module 1516, a communication interface 1508, and one or more transceivers 1530, all of which may be coupled to the RU processor 1506. RU 106 may further include an antenna 1540, which may be coupled to one or more transceivers 1530, enabling RU 106 to communicate with UE 102 via the antenna 1540 through one or more transceivers 1530.

[0109] On-chip memories 1506', 1526', 1546' and additional memory modules 1516, 1536, 1556 can each be considered as computer-readable media / memory. Each computer-readable medium / memory can be non-transitory. Each of processors 1506, 1526, 1546 is responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by the corresponding processor 1506, 1526, 1546, the software causes the processor 1506, 1526, 1546 to perform the various functions described herein. The computer-readable medium / memory can also be used to store data manipulated by processors 1506, 1526, 1546 during software execution. In the example, the TDCP configuration component 150 may be located at any of one or more network entities 104, such as at CU 110; at both CU 110 and DU 108; at each of CU 110, DU 108 and RU 106; at DU 108; at both DU 108 and RU 106; or at RU 106.

[0110] like Figure 1 The discussion in the article and about Figure 13 The implemented TDCP configuration component 150 is configured to: send a CSI report to the UE 102, the configuration including one or more CSI report sub-configurations and CSI-RS resources; send a signal to the UE 102 to trigger at least one of the one or more CSI report sub-configurations; send a CSI-RS indicated by at least one of the one or more CSI report sub-configurations to the UE 102; and receive a CSI report based on CSI-RS from the UE 102, the CSI report including a TDCP report associated with at least one of the one or more CSI report sub-configurations.

[0111] TDCP configuration component 150 may be located within one or more processors of one or more network entities 104, such as RU processor 1506 (e.g., at 150a), DU processor 1526 (e.g., at 150b), and / or CU processor 1546 (e.g., at 150c). TDCP configuration components 150a-150c may be one or more hardware components specifically configured to execute the stated process / algorithm, implemented by one or more processors 1506, 1526, 1546 configured to execute the stated process / algorithm, and stored in a computer-readable medium for use by one or more processors 1506, 1526, 1546, or combinations thereof.

[0112] The specific order or hierarchy of the boxes in the processes and flowcharts disclosed herein is illustrative of the exemplary methods. Therefore, the specific order or hierarchy of the boxes in the processes and flowcharts can be rearranged. Some boxes may also be merged or deleted. Dashed lines may indicate optional elements of the diagrams. The appended method claims present the elements of each box in the exemplary order, and are not limited to the specific order or hierarchy presented in the claims, processes, and flowcharts.

[0113] The detailed descriptions presented herein, in conjunction with accompanying drawings, depict various configurations, but do not represent the only configurations in which the concepts described herein can be practiced. These detailed descriptions include specific details used to provide a comprehensive explanation of the various concepts. However, these concepts can be practiced without using these specific details. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0114] Various aspects of wireless communication systems (such as telecommunications systems) are presented with reference to various devices and methods. These devices and methods are described in the following detailed description and are shown in the accompanying drawings by various boxes, components, circuits, processes, call flows, systems, algorithms, etc. (collectively, "elements"). These elements can be implemented using electronic hardware, computer software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and design constraints imposed on the system as a whole.

[0115] An element, or any part of an element, or any combination of elements, can be implemented as a “processing system” including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, system-on-a-chip (SoCs), baseband processors, field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other similar hardware configured to perform the various functionalities described throughout this disclosure. One or more processors in a processing system can execute software, which may be referred to as software, firmware, middleware, microcode, hardware description languages, or others. Software should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, or any combination thereof.

[0116] If the functionality described herein is implemented in software, then such functionality may be stored on or encoded as one or more instructions or code on a computer-readable medium, such as a non-transitory computer-readable storage medium. Computer-readable media include computer storage media and may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer-executable code in the form of instructions or data structures accessible by a computer. The storage medium can be any available medium accessible to a computer.

[0117] The aspects, implementations, and / or use cases described herein can be implemented across many different platform types, devices, systems, form factors, sizes, and package arrangements. For example, aspects, implementations, and / or use cases can be generated via integrated chip implementations and other devices based on non-modular components, such as end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / procurement devices, medical devices, devices supporting artificial intelligence (AI), devices supporting machine learning (ML), etc. The scope of aspects, implementations, and / or use cases can range from chip-level or modular components to non-modular or non-chip-level implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more of the technologies described herein.

[0118] Apparatus incorporating the aspects and features described herein may also include additional components and features for implementing and practicing the claimed and described aspects and features. For example, the transmission and reception of wireless signals necessarily include numerous components for analog and digital purposes, such as hardware components, antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc. The techniques described herein can be practiced in a wide variety of devices, chip-level components, systems, distributed arrangements, aggregated or decomposed components, end-user devices, etc., in various configurations.

[0119] The description herein is provided to enable those skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not limited to the aspects described herein, but should be interpreted in light of the full scope of this disclosure consistent with the language of the claims.

[0120] Unless explicitly stated otherwise, references to singular elements do not imply "one and only one," but rather "one or more." Terms such as "if," "when," and "at" do not imply an immediate temporal relationship or response. That is, phrases such as "when" do not imply an immediate action in response to or during the occurrence of an action, but simply that an action will occur if the condition is met, without requiring a specific or immediate temporal constraint on the occurrence of the action. The terms "may," "may," and "can" as used herein generally carry certain connotations. For example, "may" refers to a permissible feature that may or may not occur, "may" refers to a feature that is very likely to occur, and "can" refers to a capability (e.g., being able to). The phrase "for example" generally carries a similar connotation to "may," and therefore, "may" is sometimes excluded from sentences that include "for example" or other similar phrases.

[0121] Unless otherwise expressly stated, the term "some" means one or more. Combinations such as "at least one of A, B, or C" or "one or more of A, B, or C" include any combination of A, B, and / or C, such as A and B, A and C, B and C, or A and B and C, and may include multiple A, multiple B, and / or multiple C, or may include only A, only B, or only C. A set should be interpreted as a set of elements having a number of one or more elements. Terms or articles such as "a," "an," and / or "the" may refer to one of the items, features, elements, etc., following that term or article, or may refer to more than one of the items, features, elements, etc., following that term or article. For example, the expression "a small component" does not exclude references to multiples of said component, because "multiple components" necessarily includes "a small component." Therefore, the expression "a small component" can be interpreted as "at least one component," or similarly, as "one or more components."

[0122] Unless otherwise explicitly indicated, ordinal terms such as “first” and “second” do not necessarily imply order in time, sequence, numerical value, etc., but are used to distinguish different instances of the term or phrase following each ordinal term. As used in the specification and figures, reference numerals are sometimes cross-referenced between figures to indicate the same or similar features. Features that are identical in multiple figures may be labeled with the same reference numerals in multiple figures. Features that are similar but not identical in multiple figures may be labeled with reference numerals that have different leading numerals but share one or more of the same trailing numerals (e.g., 206, 306, 406, etc. may refer to similar features in the figures).

[0123] Structural and functional equivalents of the various aspects of the elements described throughout this disclosure, known or subsequently learned by those skilled in the art, are expressly incorporated herein by reference and are covered by the claims. The terms “module,” “mechanism,” “element,” “device,” etc., may not be substitutes for the term “component.” Therefore, no claim element shall be construed as means plus function unless the phrase “component for…” is explicitly stated herein. As used herein, the phrase “based on” should not be construed as a reference to a closed set of information, one or more conditions, one or more factors, etc. In other words, unless expressly stated otherwise, the phrase “based on A” (where “A” can be information, conditions, factors, etc.) shall be construed as “at least based on A.”

[0124] The following examples are illustrative only and may be combined with other examples or teachings described herein without limitation.

[0125] Example 1 is a method for wireless communication at a UE, the method comprising: receiving a configuration of a Channel State Information (CSI) report from a network entity, the configuration including one or more CSI report sub-configurations and a CSI Reference Signal (CSI-RS) resource; receiving from the network entity a signal that triggers at least one of the one or more CSI report sub-configurations; receiving from the network entity a CSI-RS indicated by the at least one of the one or more CSI report sub-configurations; and sending to the network entity a CSI report based on the CSI-RS, the CSI report including a Time Domain Channel Characteristics (TDCP) report associated with the at least one of the one or more CSI report sub-configurations.

[0126] Example 2 can be combined with Example 1 and includes: at least one CSI reporting sub-configuration in the one or more CSI reporting sub-configurations corresponds to at least one of the following: a first spatial domain network energy-saving SD-NES configuration; a second SD-NES configuration; or a power domain network energy-saving PD-NES configuration.

[0127] Example 3 may be combined with any of Examples 1 to 2, and further includes: the first SD-NES configuration indicating a subset of antenna ports associated with the CSI-RS; the second SD-NES configuration indicating a subset of antenna elements associated with the CSI-RS; and the PD-NES indicating the power offset between the CSI-RS and the Physical Downlink Shared Channel (PDSCH).

[0128] Example 4 may be combined with any of Examples 1 to 3, and further includes: determining at least one of the following: the magnitude of the correlation between a first CSI-RS and a second CSI-RS for one or more delays; or the phase difference between the first CSI-RS and the second CSI-RS for the one or more delays, wherein: the configuration further indicates the one or more delays; and the TDCP report indicates at least one of the following: the magnitude of the correlation between the first CSI-RS and the second CSI-RS for the one or more delays; or the phase difference between the first CSI-RS and the second CSI-RS for the one or more delays.

[0129] Example 5 may be combined with any of Examples 1 to 4, and further includes: the first CSI-RS includes a first single-port tracking reference signal TRS, and the second CSI-RS includes a second single-port TRS.

[0130] Example 6 can be combined with any of Examples 1 to 5, and further includes: the one or more delays comprise an integer number of symbols.

[0131] Example 7 may be combined with any of Examples 1 to 6, and further includes: receiving the CSI-RS includes receiving periodic CSI-RS.

[0132] Example 8 may be combined with any of Examples 1 to 7, and further includes: sending a UE capability report to the network entity, the UE capability report indicating support for CSI reporting based on at least one CSI reporting sub-configuration in the one or more CSI reporting sub-configurations.

[0133] Example 9 may be combined with any of Examples 1 to 8, and further includes: the CSI-RS resource includes at least one set of CSI resources.

[0134] Example 10 may be combined with any of Examples 1 to 9, and further includes: the configuration includes at least one of the following: a first bitmap indicating the CSI-RS resource; or a second bitmap indicating a set of CSI resources associated with the CSI-RS resource.

[0135] Example 11 may be combined with any of Examples 1 to 10, and further includes: the sending of the CSI report includes sending the CSI report after receiving at least one CSI-RS transmission timing indicated in at least one CSI report sub-configuration in the one or more CSI report sub-configurations and no later than sending the CSI report from the CSI reference resource.

[0136] Example 12 is a method for wireless communication at a network entity, and includes: a configuration for sending a Channel State Information (CSI) report to a User Equipment (UE), the configuration including at least one CSI report sub-configuration indicating CSI Reference Signal (CSI-RS) resources; sending Downlink Control Information (DCI) to the UE, the DCI indicating a subset of the at least one CSI report sub-configuration; sending a CSI-RS indicated by the subset of the at least one CSI report sub-configuration to the UE; and receiving the CSI report from the UE, the CSI report including a Time Domain Channel Characteristics (TDCP) report associated with the subset of the at least one CSI report sub-configuration.

[0137] Example 13 can be combined with Example 12 and further includes: the at least one CSI report sub-configuration corresponds to at least one of the following: a first spatial domain network energy-saving SD-NES configuration; a second SD-NES configuration; or a power domain network energy-saving PD-NES configuration.

[0138] Example 14 may be combined with any of Examples 12 to 13, and further includes: the first SD-NES configuration indicating a subset of antenna ports associated with the CSI-RS; the second SD-NES configuration indicating a subset of antenna elements associated with the CSI-RS; and the PD-NES indicating the power offset between the CSI-RS and the Physical Downlink Shared Channel (PDSCH).

[0139] Example 15 may be combined with any of Examples 12 to 14, and further includes: the configuration further indicating one or more delays; and the TDCP report indicating at least one of the following: the magnitude of the correlation between a first CSI-RS and a second CSI-RS for the one or more delays; or the phase difference between the first CSI-RS and the second CSI-RS for the one or more delays.

[0140] Example 16 may be combined with any of Examples 12 to 15, and further includes: the CSI-RS includes a first single-port tracking reference signal TRS and a second single-port TRS.

[0141] Example 17 may be combined with any of Examples 12 to 16, and further includes: the one or more delays comprising an integer number of symbols.

[0142] Example 18 may be combined with any of Examples 12 to 17, and further includes: the transmission of the CSI-RS includes periodically transmitting the CSI-RS.

[0143] Example 19 may be combined with any of Examples 12 to 18, and further includes: receiving a UE capability report from the UE, the UE capability report indicating support for CSI reporting based on the at least one CSI report sub-configuration.

[0144] Example 20 may be combined with any of Examples 12 to 19, and further includes: the CSI-RS resource includes at least one set of CSI resources.

[0145] Example 21 may be combined with any of Examples 12 to 20, and further includes: the configuration includes at least one of the following: a first bitmap indicating the CSI-RS resource; or a second bitmap indicating a set of CSI resources associated with the CSI-RS resource.

[0146] Example 22 may be combined with any of Examples 12 to 21, and further includes: receiving the CSI report includes receiving the CSI report after and no later than the CSI reference resource following at least one CSI-RS transmission timing indicated in the subset of the at least one CSI report sub-configuration.

[0147] Example 23 is a method for wireless communication at a network entity, the method comprising: a configuration for sending a Channel State Information (CSI) report to a UE, the configuration including at least one CSI report sub-configuration indicating CSI Reference Signal (CSI-RS) resources, wherein the configuration includes a report quantity including at least a rank indicator (RI).

[0148] Example 24 is an apparatus for implementing wireless communication according to any one of Examples 1 to 23.

[0149] Example 25 is an apparatus for wireless communication including components for implementing the method as described in any one of Examples 1 to 23.

[0150] Example 26 is a non-transitory computer-readable medium storing computer-executable code that, when executed by a processor, causes the processor to implement the method as described in any one of Examples 1 to 23.

Claims

1. A method for wireless communication performed by a user equipment (UE) (102), the method comprising: Configuration for receiving (510) Channel State Information (CSI) reports from network entity (104), the configuration including one or more CSI report sub-configurations and CSI Reference Signal (CSI-RS) resources; Receive (520) a signal from the network entity (104) that triggers at least one of the one or more CSI reporting sub-configurations; Receive (530) a CSI-RS indicated by at least one of the one or more CSI reporting sub-configurations from the network entity (104); as well as Send (550) the CSI report based on CSI-RS to the network entity (104), the CSI report including a time-domain channel characteristic (TDCP) report associated with at least one of the one or more CSI report sub-configurations.

2. The method of claim 1, wherein the at least one CSI reporting sub-configuration in the one or more CSI reporting sub-configurations corresponds to at least one of the following: First-space domain network energy-saving SD-NES configuration; Second SD-NES configuration; or Power domain network energy-saving PD-NES configuration.

3. The method of claim 2, wherein the first SD-NES configuration indicates a subset of antenna ports associated with the CSI-RS; The second SD-NES configuration indicates a subset of antenna elements associated with the CSI-RS; and The PD-NES indicates the power offset between the CSI-RS and the Physical Downlink Shared Channel (PDSCH).

4. The method according to any one of claims 1 to 3, further comprising: Determine at least one of the following: The magnitude of the correlation between the first CSI-RS and the second CSI-RS for one or more delays; or For the phase difference between the first CSI-RS and the second CSI-RS with the one or more delays, wherein: The one or more CSI reporting sub-configurations further indicate the one or more delays; and The TDCP report indicates at least one of the following: The magnitude of the correlation between the first CSI-RS and the second CSI-RS with respect to the one or more delays; or The phase difference between the first CSI-RS and the second CSI-RS for the one or more delays.

5. The method of claim 4, wherein the first CSI-RS includes a first single-port tracking reference signal TRS, and the second CSI-RS includes a second single-port TRS.

6. The method according to any one of claims 1 to 5, wherein receiving (530) the CSI-RS includes receiving (530) periodic CSI-RS.

7. The method according to any one of claims 1 to 6, further comprising: Send a (505) UE capability report to the network entity (104), the UE capability report indicating support for CSI reporting based on at least one CSI reporting sub-configuration in one or more CSI reporting sub-configurations.

8. The method according to any one of claims 1 to 7, wherein the CSI-RS resource comprises at least one CSI resource set.

9. The method according to any one of claims 1 to 8, wherein the configuration comprises at least one of the following: The first diagram indicating the CSI-RS resource; or A second bitmap indicating the set of CSI resources associated with the CSI-RS resource.

10. The method according to any one of claims 1 to 9, wherein sending (550) the CSI report includes receiving at least one CSI-RS transmission timing indicated in at least one CSI report subconfiguration in the one or more CSI report subconfigurations and no later than sending (550) the CSI report via the CSI reference resource.

11. A method for wireless communication performed by a network entity (104), the method comprising: Configuration for sending (510) Channel State Information (CSI) reports to User Equipment (UE) (102), the configuration including one or more CSI report sub-configurations and CSI Reference Signal (CSI-RS) resources; Send a signal (520) to the UE (102) to trigger at least one of the one or more CSI reporting sub-configurations; Send (530) a CSI-RS indicated by at least one of the one or more CSI report sub-configurations to the UE (102); as well as The UE (102) receives (550) a CSI report based on the CSI-RS, the CSI report including a time-domain channel characteristic (TDCP) report associated with at least one of the one or more CSI report sub-configurations.

12. The method of claim 11, wherein the at least one CSI reporting sub-configuration in the one or more CSI reporting sub-configurations corresponds to at least one of the following: First-space domain network energy-saving SD-NES configuration; Second SD-NES configuration; or Power domain network energy-saving PD-NES configuration.

13. The method of claim 12, wherein the first SD-NES configuration indicates a subset of antenna ports associated with the CSI-RS; The second SD-NES configuration indicates a subset of antenna elements associated with the CSI-RS; and The PD-NES indicates the power offset between the CSI-RS and the Physical Downlink Shared Channel (PDSCH).

14. The method according to any one of claims 11 to 13, wherein the CSI-RS comprises a first single-port tracking reference signal TRS and a second single-port TRS.

15. An apparatus for wireless communication, comprising a transceiver, a memory, and a processor, the processor being coupled to the transceiver and the memory and configured to implement the method as claimed in any one of claims 1 to 14.

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