Method for power headroom reporting with dynamic waveform selection for uplink multi-panel transmission

Abstract

This disclosure provides systems, apparatus, devices, and methods, including computer programs encoded on a storage medium, for a UE to report power headroom associated with dynamic waveform selection for uplink multi-panel transmissions. The UE may compute and report a UE-specific power headroom report (PHR) for one or more combinations of waveforms from multiple antenna panels or a panel-specific PHR for one or more waveforms for each panel. The UE (102) receives (410) signaling from a network entity (104) for configuring at least one power headroom report (PHR) to support a dynamic waveform indication in an uplink multi-panel transmission. The UE (102) sends (1012), to the network entity (104), at least one PHR comprising a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one waveform combination of the dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indication.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to wireless communication, and more specifically to techniques for a user equipment (UE) to calculate and report a power headroom (PH) associated with an uplink transmission from the UE in support of dynamic indication of multiple waveforms for the uplink transmission from multiple antenna panels. BACKGROUND

[0002] The Third Generation Partnership Project (3GPP) specifies a radio interface referred to 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 the like. The 5G NR architecture seeks to provide increased data rates, reduced latency, and / or increased capacity as compared to previous generation cellular communication systems.

[0003] Generally, wireless communication systems provide various telecommunication services (e.g., telephony, video, data, messaging, broadcasts, etc.) based on supporting multiple access technologies (such as orthogonal frequency division multiple access (OFDMA) technologies) that enable communication with multiple UEs. Improvements in mobile broadband continue to evolve with the development of such wireless communication technologies. For example, a 5G-RAN can configure uplink power control parameters to limit intra- and inter-cell interference and reduce UE power consumption in open- or closed-loop power control schemes. A UE can transmit a power headroom report (PHR) to the 5G-RAN based on the uplink power control parameters for the 5G-RAN to dynamically indicate a waveform for a scheduled uplink multi-panel transmission. However, mechanisms in the UE to support PHR for dynamic waveform indication in uplink multi-panel transmissions can be complex, resulting in lower system performance. SUMMARY

[0004] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects. It is not intended to identify key or critical elements of all aspects or to delineate 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 description that is presented later.

[0005] In multi-panel codebook transmissions, a UE can transmit a set of non-precoded sounding reference signals (SRS) from multiple antenna panels (or simply panels) to a network entity, such as a base station, to measure uplink propagation channels from the multiple antenna panels. For example, in a UE with two antenna panels, the network entity can configure two sets of SRS resources for the UE to transmit SRS for uplink channel state information (CSI) measurements, one set of SRS resources for each antenna panel. The network entity can evaluate the SRS transmissions belonging to each SRS resource to select an antenna panel for a physical uplink shared channel (PUSCH) and determine an appropriate transmission rank (number of transmission layers) and precoding weights (precoding matrix) from a standardized codebook to maximize a received signal-to-noise ratio. The network entity can use downlink control information (DCI) to allocate PUSCH resources and instruct the UE to use one or more antenna panels and a particular combination of transmission layers and precoding matrix for the PUSCH.

[0006] The network entity can also configure uplink power control parameters for SRS, PUSCH, and physical uplink control channel (PUCCH) to limit intra- and inter-cell interference and reduce UE power consumption in open- or closed-loop power control schemes. For example, the network entity can configure uplink power control parameters such as P0, a, path loss reference signal (synchronization signal block (SSB) or downlink CSI reference signal), closed-loop power control index, etc., to control the transmit power of SRS, PUSCH, and PUCCH based on transmission configuration indicator (TCI) or spatial relation information.

[0007] The UE can use a medium access control control element (MAC-CE) on the PUSCH to transmit a power headroom report (PHR) to the network entity to report a power headroom (PH) for the PUSCH (Type1 PH) or to report a power headroom (PH) for the SRS (Type3 PH) to facilitate uplink scheduling. For example, if the UE has a scheduled PUSCH or SRS transmission, the UE can calculate the PH as a difference between an actual maximum transmission power and an actual transmission power for the PUSCH or SRS, where the actual transmission power is determined based on the uplink power control parameters for the PUSCH or SRS. If the UE does not have a scheduled PUSCH or SRS transmission, the UE can determine the PH based on a difference between a reference maximum transmission power and a reference transmission power based on a default set of power control parameters.

[0008] A network entity can use PHR to identify the number of resource blocks to be allocated to a PUSCH, to identify a modulation and coding scheme, and for other radio resource management functions. The network entity can also use PHR to dynamically indicate a waveform of a scheduled PUSCH transmission when allocating PUSCH resources. For example, a scheduling DCI can indicate whether a PUSCH waveform is based on cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) or discrete Fourier transform spread OFDM (DFT-s-OFDM). Because a peak-to-average power ratio (PAPR) or cubic metric (CM) of CP-OFDM is higher compared to a PAPR or CM of DFT-s-OFDM, the maximum transmission power of the two waveforms can be different. Moreover, in multi-panel PUSCH transmissions based on CP-OFDM and DFT-s-OFDM, and especially for PUSCH transmissions scheduled by multiple DCIs, PUSCH transmissions from multiple antenna panels can have various combinations of the same or different waveforms.

[0009] Aspects of the disclosure address the above and other complexities of reporting power headroom in a UE supporting dynamic waveform indication of PUSCH in uplink multi-panel transmissions. A network entity can configure uplink power control parameters for different waveforms or combinations of waveforms. In some aspects, a UE can calculate and report a UE-specific PHR for one or more combinations of waveforms from multiple antenna panels. The UE can report the PHR based on a UE-specific maximum uplink transmission power for the one or more combinations of waveforms and an actual or reference transmission power corresponding to a particular combination of waveforms from the multiple antenna panels. In some aspects, a UE can calculate and report a panel-specific PHR for one or more waveforms in each of multiple antenna panels. The UE can report the PHR based on a panel-specific maximum uplink transmission power for the one or more waveforms and an actual or reference transmission power for the corresponding waveform of each antenna panel.

[0010] According to some aspects, a UE receives, from a network entity, signaling to configure at least one PHR to support dynamic waveform indication in uplink multi-panel transmissions. The UE transmits, to the network entity, at least one PHR including a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one combination of waveforms of the dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indication.

[0011] According to some aspects, a network entity transmits signaling to a UE for configuring at least one PHR to support dynamic waveform indication in uplink multi-panel transmission. The network entity receives, from the UE, at least one PHR including a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one waveform combination of the dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indication. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A diagram illustrating a wireless communication system including a plurality of user equipments (UEs) and a network entity in communication through one or more cells is shown.

[0013] Figure 2 is a diagram illustrating a UE configured to transmit a CP-OFDM waveform from two antenna panels when the UE supports dynamic waveform indication of PUSCH in uplink multi-panel transmission.

[0014] Figure 3 is a diagram illustrating a UE configured to transmit a DFT-s-OFDM waveform from two antenna panels when the UE supports dynamic waveform indication of PUSCH in uplink multi-panel transmission.

[0015] Figure 4 is a diagram illustrating a UE configured to transmit a CP-OFDM waveform from a first antenna panel and a DFT-s-OFDM waveform from a second antenna panel when the UE supports dynamic waveform indication of PUSCH in uplink multi-panel transmission.

[0016] Figure 5 is a signaling diagram illustrating communications between a UE and a network entity for the UE to report power headroom when the UE supports dynamic waveform indication in uplink multi-panel transmission.

[0017] Figure 6 Two diagrams illustrating a single UE-specific PHR based on one combination of waveforms from dynamic waveform indication of two antenna panels in uplink multi-panel transmission are shown.

[0018] Figure 7 Two diagrams illustrating a plurality of UE-specific PHRs based on different combinations of waveforms from dynamic waveform indication of two antenna panels in uplink multi-panel transmission are shown.

[0019] Figure 8 Two diagrams illustrating a single panel-specific PHR based on one waveform from dynamic waveform indication of each antenna panel in uplink multi-panel transmission are shown.

[0020] Figure 9Two diagrams illustrating multiple panel-specific PHRs of different waveforms based on dynamic waveform indication from each antenna panel in uplink multi-panel transmission are shown.

[0021] Figure 10 is a flow diagram of a method of wireless communication for reporting a power headroom at a UE when the UE supports dynamic waveform indication in uplink multi-panel transmission.

[0022] Figure 11 is a flow diagram of a method of wireless communication for receiving a power headroom report at a network entity when a UE supports dynamic waveform indication in uplink multi-panel transmission.

[0023] Figure 12 is a diagram illustrating a hardware implementation for an example UE apparatus.

[0024] Figure 13 is a diagram illustrating a hardware implementation for one or more example network entities. DETAILED DESCRIPTION

[0025] Figure 1 A diagram 100 illustrating a wireless communication system associated with multiple cells 190 is shown. The wireless communication system includes user equipment (UE) 102 and base stations / network entities 104. Some base stations can include an aggregated base station architecture, while other base stations can include a disaggregated base station architecture. An aggregated base station architecture utilizes radio protocol stacks that are physically or logically integrated within a single radio access network (RAN) node. A disaggregated base station architecture utilizes protocol stacks that are physically or logically distributed among two or more units, such as a radio unit (RU) 106, a distributed unit (DU) 108, a central unit (CU) 110. For example, the CU 110 is implemented within a RAN node, and one or more DUs 108 can be co-located with the CU 110 or, alternatively, can be geographically or virtually distributed in one or more other RAN nodes. The DUs 108 can be implemented to communicate with one or more RUs 106. Any of the RUs 106, DUs 108, and CUs 110 can be implemented as virtual units, such as a virtual radio unit (VRU), a virtual distributed unit (VDU), or a virtual central unit (VCU). The base stations / network entities 104 (e.g., an aggregated base station or a disaggregated unit of a base station, such as a RU 106 or a DU 108) can be referred to as a transmission reception point (TRP).

[0026] Operations of the base stations 104 and / or network design can be based on aggregated characteristics of base station functionality. For example, a disaggregated base station architecture is utilized in an integrated access backhaul (IAB) network, an open radio access network (O-RAN) network, or a virtualized radio access network (vRAN), which can also be referred to as a cloud radio access network (C-RAN). Disaggregation can include distributing functionality between two or more units located at various physical locations, as well as virtually distributing functionality of at least one unit, which can enable flexibility in network design. Various units of the disaggregated base station architecture or disaggregated RAN architecture can be configured to communicate in wired or wireless communication with at least one other unit. For example, the base stations 104d / 104e and / or the RUs 106a-106d can communicate with the UEs 102a-102d and 102s via one or more radio frequency (RF) access links based on a Uu interface. In an example, multiple RUs 106 and / or base stations 104 can simultaneously serve the UEs 102, such as through intra- and / or inter-cell access links between the UEs 102 and the RUs 106 / base stations 104.

[0027] The RUs 106, the DUs 108, and the CUs 110 can include (or can be coupled to) one or more interfaces configured to send or receive information / signals via wired or wireless transmission media. For example, a wired interface can be configured to send or receive information / signals over a wired transmission medium, such as via a fronthaul link 160 between the RU 106d and a baseband unit (BBU) 112 of the base station 104d associated with the cell 190d. The BBU 112 includes the DU 108 and the CU 110, which can also have a wired interface (e.g., a midhaul link) configured between the DU 108 and the CU 110 to send or receive information / signals between the DU 108d and the CU 110d. In a further example, a wireless interface that can include a receiver, a transmitter, or a transceiver (such as an RF transceiver) is configured to send and / or receive information / signals via a wireless transmission medium, such as information communicated between the RU 106a of the cell 190a and the base station 104e of the cell 190e via the cross-cell communication beams 136-138 of the RU 106a and the base station 104e.

[0028] The RUs 106 can be configured to implement low-layer functionality. For example, the RUs 106 are controlled by the DUs 108 and can correspond to logical nodes that host RF processing functions or low-layer PHY functions, such as performing fast Fourier transforms (FFTs), inverse FFTs (iFFTs), digital beamforming, physical random access channel (PRACH) extraction and filtering, and the like. The functionality of the RUs 106 can be based on a functional split, such as a low-layer functional split.

[0029] 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.

[0030] Any combination or individual reference to RU 106, DU 108, and CU 110 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".

[0031] 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.

[0032] 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 a per-carrier Y MHz spectral bandwidth (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, 800 MHz, 1600 MHz, 2000 MHz, etc.) allocated in carrier aggregation up to a total of Yx MHz, where x component carriers (CCs) are used for communication in each of the uplink and downlink directions. Carriers can be adjacent to each other along the spectrum or can be non-adjacent. In the example, uplink and downlink carriers can be allocated asymmetrically, with more or fewer carriers allocated for the uplink or downlink. Component carriers can include a primary component carrier and one or more secondary component carriers. The primary component carrier can be associated with the primary cell (PCell), and the secondary component carrier can be associated with the secondary cell (SCell).

[0033] Some UEs 102 (such as UEs 102a and 102s) can perform device-to-device (D2D) communication via sidelinks. For example, sidelink communication / D2D links utilize the spectrum of the 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.

[0034] The electromagnetic spectrum is typically subdivided into different categories, bands, channels, etc., based on the different frequencies / wavelengths associated with it. Fifth-generation (5G) NR is generally associated with two operating frequency ranges (FRs) known as Frequency Range 1 (FR1) and Frequency Range 2 (FR2). FR1 ranges from 410 MHz to 7.125 GHz, and FR2 ranges from 24.25 GHz to 71.0 GHz, which includes FR2-1 (24.25 GHz to 52.6 GHz) and FR2-2 (52.6 GHz to 71.0 GHz). Although a portion of FR1 is actually greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. In contrast, FR2 is often referred to as the "millimeter wave" (mmW) band. FR2 is different from the "extremely high frequency" (EHF) band, but is an approximate subset of it, the EHF band which ranges from 30 GHz to 300 GHz, and is sometimes also referred to as the "millimeter wave" band. The frequencies between FR1 and FR2 are generally referred to as the "mid-band" frequencies. The operating frequency band of the mid-band can be referred to as Frequency Range 3 (FR3), ranging from 7.125 GHz to 24.25 GHz. The frequency bands within FR3 can include the characteristics of FR1 and / or FR2. Therefore, the characteristics of FR1 and / or FR2 can be extended to the mid-band frequencies. Higher operating frequency bands have been identified to extend 5G NR communication above 52.6 GHz, which is associated with the upper limit of FR2. Three of these higher operating frequency bands are FR2-2 (ranging from 52.6 GHz to 71.0 GHz), FR4 (ranging from 71.0 GHz to 114.25 GHz), and FR5 (ranging from 114.25 GHz to 300 GHz). The upper limit of FR5 corresponds to the upper limit of the EHF band. Therefore, unless otherwise expressly stated herein, the term "below 6 GHz" may refer to frequencies less than 6 GHz, frequencies within FR1, or frequencies that may include mid-band frequencies. Furthermore, unless otherwise expressly stated herein, the term "millimeter wave" or mmW refers to frequencies that may include mid-band frequencies, frequencies within FR2-1, FR4, FR2-2, and / or FR5, or frequencies within the EHF band.

[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.

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

[0037] Base station 104 may include and / or be referred to as a network entity. That is, a "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, while base station / RU 160a 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 of 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 Arrival (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 1In some respects, any UE in UE 102 may include a PHR calculation component 140 (also referred to as "PHR calculation component 140") for dynamic waveform indication in uplink multi-panel transmission. This component is configured to trigger, calculate, and report the power margin of multiple antenna panels whose uplink transmission waveforms can be dynamically indicated. The PHR calculation component 140 may receive signaling from the base station / network entity 104 for configuring at least one PHR to support dynamic waveform indication in uplink multi-panel transmission. The PHR calculation component 140 may send at least one PHR to the base station / network entity 104, including a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one waveform combination for dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform for dynamic waveform indication.

[0040] In some respects, any base station or network entity of base station 104 may include a PHR configuration component 150 (also referred to as "PHR configuration component 150") for dynamic waveform indication in uplink multi-panel transmission, which is configured to receive PHRs from a UE for multiple antenna panels whose uplink transmission waveforms can be dynamically indicated. PHR configuration component 150 may send signaling to any UE of UE 102 to configure at least one PHR to support dynamic waveform indication in uplink multi-panel transmission. PHR configuration component 150 may receive at least one PHR from any UE, including a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one waveform combination for dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform for dynamic waveform indication.

[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] For uplink multi-panel transmission, network entity 104 can dynamically indicate the PUSCH waveform as either Cyclic Prefix-based Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-extended OFDM (DFT-s-OFDM) via scheduling downlink control information (DCI) that allocates PUSCH resources. DFT-s-OFDM uses transform precoding of the DFT operation to extend the modulation symbols before mapping them onto the subcarrier set. DFT-s-OFDM has a lower Peak-to-Average Power Ratio (PAPR) compared to CP-OFDM. This allows UE 102 to transmit with higher average power using DFT-s-OFDM, thus improving uplink coverage performance, while CP-OFDM provides increased throughput and capacity. Network entity 104 can dynamically reconfigure UE 102 based on coverage conditions or desired throughput.

[0043] Because the PAPR or cubic metric (CM) of CP-OFDM is higher than that of DFT-s-OFDM, the maximum transmitted power of the two waveforms can differ. Therefore, reporting the reference PHR based on the difference in maximum transmitted power between the two waveforms in the absence of scheduled PUSCH transmission can introduce complexity. This disclosure describes a technique for determining the reference PHR based on the different characteristics of two waveforms in multi-panel PUSCH transmission.

[0044] Furthermore, in multi-panel PUSCH transmissions based on CP-OFDM and DFT-s-OFDM, especially for PUSCH transmissions scheduled via multiple DCIs associated with different control resource set (CORESET) pool indices (e.g., CORESETs configured with different values ​​of CORESETPoolIndex), UE 102 may be unable to decode multiple DCIs and generate the indicated PUSCH waveform in a timely manner before scheduled PUSCH transmissions from multiple antenna panels. Therefore, UE 102 may transmit PUSCHs from multiple antenna panels with different waveforms. This disclosure describes techniques for determining the PHR of UE 102 per panel or per CORESET pool, or across all panels or all CORESET pools, in scenarios where the same or different waveforms may exist in uplink multi-panel transmissions.

[0045] Figure 2This diagram illustrates UE 102 configured to transmit CP-OFDM waveforms from two antenna panels when the UE supports dynamic waveform indication of the PUSCH in uplink multi-panel transmission. A first scheduling DCI 201 can configure PUSCH 205 from the first antenna panel to transmit CP-OFDM waveforms. A second scheduling DCI 203 can configure PUSCH 207 from the second antenna panel to similarly transmit CP-OFDM waveforms. The first and second DCIs can originate from CORESETs with different CORESET pools. UE 102 can support concurrent configuration of dynamic waveform indication and simultaneous multi-panel transmission.

[0046] Figure 3 This diagram illustrates UE 102 configured to transmit DFT-s-OFDM waveforms from two antenna panels when the UE supports dynamic waveform indication of the PUSCH in uplink multi-panel transmission. The first scheduling DCI 301 can configure PUSCH 305 from the first antenna panel to transmit DFT-s-OFDM waveforms. The second scheduling DCI 303 can configure PUSCH 307 from the second antenna panel to similarly transmit DFT-s-OFDM waveforms.

[0047] Figure 4 This diagram illustrates UE 102 configured to transmit CP-OFDM waveforms from the first antenna panel and DFT-s-OFDM waveforms from the second antenna panel when the UE supports dynamic waveform indication of the PUSCH in uplink multi-panel transmission. The first scheduling DCI 401 can configure PUSCH 405 from the first antenna panel to transmit DFT-s-OFDM waveforms. The second scheduling DCI 403 can configure PUSCH 407 from the second antenna panel to transmit CP-OFDM waveforms.

[0048] This disclosure addresses panel-specific and UE-specific PHRs for dynamic waveform indication of the PUSCH in uplink multi-panel transmission by UE 102. In one aspect, UE 102 can report the PHR based on a UE-specific maximum uplink transmission power of one or more waveform combinations and an actual or reference transmission power corresponding to a specific waveform combination from multiple antenna panels. In some aspects, the UE can calculate and report a panel-specific PHR for one or more waveforms for each of the multiple antenna panels. The UE can report the PHR based on a panel-specific maximum uplink transmission power of one or more waveforms and an actual or reference transmission power for the corresponding waveform of each antenna panel.

[0049] Advantageously, the techniques described herein can support PHR for different waveform combinations for uplink multi-panel transmission. Network entity 104 can flexibly schedule bandwidth and waveforms for uplink multi-panel transmission to adapt to various coverage conditions or desired throughput. For example, when the uplink transmission uses a CP-OFDM waveform, network entity 104 can schedule the uplink transmission with higher bandwidth while keeping the target uplink transmission power below the maximum transmission power constraint to achieve high spectral efficiency. When the uplink transmission uses a DFT-s-OFDM waveform, network entity 104 can also schedule the uplink transmission with higher average power while keeping the target uplink transmission power below the maximum transmission power constraint to achieve high uplink coverage.

[0050] Figure 5 This is a signaling diagram 500 illustrating communication between UE 102 and network entity 104 for UE 102 to report power margin when UE 102 supports dynamic waveform indication in uplink multi-panel transmission.

[0051] UE 102 may send information to network entity 104 regarding its ability to support dynamic waveform indication in uplink multi-panel transmission. In one implementation, UE 102 may report UE capabilities indicating supported configurations for dynamic waveform indication, simultaneous transmission from multiple antenna panels, and PHR calculation and reporting schemes. For example, UE 102 may report whether it supports concurrent configurations for dynamic waveform indication and UE capabilities for simultaneous multi-panel transmission. Network entity 104 may configure whether to enable dynamic waveform indication per panel or per control resource set pool, or across all panels or all control resource sets pools.

[0052] Based on the received UE capability report, network entity 104 can send a 504 Radio Resource Control (RRC) signaling (e.g., RRCReconfiguration) to UE 102 to configure the PHR for dynamic waveform indication in uplink multi-panel transmission. In one implementation, network entity 104 can configure one or more RRC parameters for simultaneous uplink multi-panel transmission (e.g., configuring two SRS resource sets for codebook-based or non-codebook-based transmissions for a bandwidth portion or serving cell), and can configure multiplexing schemes for PUSCH from multiple panels (e.g., Spatial Domain Multiplexing (SDM) or Single Frequency Network (SFN)). In one implementation, network entity 104 can configure one or more RRC parameters to enable dynamic waveform indication. In one implementation, network entity 104 can configure one or more RRC parameters for a UE-specific PHR or a panel-specific PHR. In one implementation, network entity 104 can avoid configuring simultaneous uplink multi-panel transmission and dynamic waveform indication for a bandwidth portion or serving cell.

[0053] Based on the received RRC parameters, UE 102 can determine whether 506 meets the triggering conditions for a UE-specific PHR or a panel-specific PHR. If the triggering conditions for a UE-specific PHR are met, UE 102 can calculate one or more UE-specific PHRs for one or more combinations of waveforms from multiple antenna panels. In one implementation, UE 102 can calculate the PHR based on the UE-specific maximum uplink transmission power of one or more waveform combinations and the actual or reference transmission power corresponding to the specific waveform combination from multiple antenna panels.

[0054] If the triggering conditions for a panel-specific PHR are met, UE 102 can calculate one or more panel-specific PHRs for one or more waveforms for each of the multiple antenna panels. UE 102 can calculate the PHR based on the panel-specific maximum uplink transmission power of one or more waveforms and the actual or reference transmission power of the corresponding waveform for each antenna panel.

[0055] If UE 102 does not receive uplink grant, UE 102 may send a 508 scheduling request to network entity 104 to request uplink resources for one or more UE-specific PHRs or panel-specific PHRs. In one implementation, the scheduling request may be specific to a UE-specific PHR or a panel-specific PHR.

[0056] In response to a scheduling request, network entity 104 may send one or more uplink grants (such as one or more DCIs) to UE 102 to schedule PUSCH transmissions and allocate resources for PUSCH transmissions.

[0057] UE 102 may send 512 UE-specific PHR for one or more waveforms of a dynamic waveform indication at a scheduled PUSCH transmission or panel-specific PHR for one or more combinations of such dynamic waveform indications to network entity 104. In one implementation, UE 102 may use the MAC-CE of the scheduled PUSCH transmission to send the UE-specific PHR or panel-specific PHR.

[0058] The following is a detailed discussion of how UE 102 can determine UE-specific PHR and panel-specific PHR to support dynamic waveform indication in uplink multi-panel transmission.

[0059] In one aspect, UE 102 can report a UE-specific PHR based on the UE-specific maximum uplink transmission power and the total transmission power from multiple panels. In one example, UE 102 can calculate the actual or reference PH of the waveform combination as follows: (Equation 1) in Indicates the actual or reference maximum transmission power of the waveform combination; The waveform w indicates the state of the TCI from panel j or the indicated state j. j The actual or reference transmission power; the number of N-indicators (activated by UE 102 or equipped in UE 102) of panels or the number of TCI states indicated / activated from network entity 104.

[0060] If UE 102 has scheduled PUSCH transport, then The actual maximum transmission power can be indicated. In one implementation, the actual maximum transmission power can be determined based on the maximum transmission power minus the maximum power reduction of the PUSCH. Otherwise, if UE 102 does not have scheduled PUSCH transmissions, then... A reference maximum transmission power can be indicated. In one implementation, the reference maximum transmission power can be determined based on the maximum transmission power without power degradation. The actual transmission power can be determined based on the configured uplink power control parameters used for PUSCH. The reference transmission power can be determined based on a default set of power control parameters.

[0061] In one aspect, UE 102 can report a UE-specific PHR based on a waveform combination. This waveform combination can include any combination of waveforms from PUSCHs of multiple panels. For example, for two panels, the waveform combination can include CP-OFDM waveforms from each of the two panels, such as... Figure 2As shown in the scenario. In another scenario, the waveform combination can include DFT-s-OFDM waveforms from each of the two panels, as shown in the example. Figure 3 As shown. In yet another scenario, the waveform combination may include a CP-OFDM waveform from one panel and a DFT-s-OFDM waveform from another panel, as shown. Figure 4 As shown.

[0062] Figure 6 Figures 600 and 650 illustrate a single UE-specific PHR that combines waveforms from dynamic waveform indications from two antenna panels in uplink multi-panel transmission. Network entity 104 can be configured with a common set or different sets of uplink power control parameters for different waveform combinations.

[0063] In one implementation, for an actual PHR, UE 102 may report a UE-specific PHR based on the waveform combination of the actual transmissions of PUSCHs from two panels. In one implementation, UE 102 may report UE capabilities indicating supported waveform combinations: for example, whether the UE supports waveform combinations of CP-OFDM+CP-OFDM, DFT-s-OFDM+DFT-s-OFDM, and / or CP-OFDM+DFT-s-OFDM. In one implementation, regarding potential omission detection of scheduling DCI, UE 102 may report the number of actually transmitted PUSCHs calculated for the reported PHR, or the index of the actually transmitted PUSCHs calculated for the reported PHR (e.g., TCI state index, SRS resource set index, or control resource set pool index). In one implementation, network entity 104 may avoid indicating a particular waveform combination. For example, the network entity may avoid indicating the waveform combination of CP-OFDM+DFT-s-OFDM. In another example, the network entity can avoid indicating the waveform combination of DFT-s-OFDM+DFT-s-OFDM.

[0064] Figure 6Figures 600 and 650 show the order of the antenna panels of UE 102 on the x-axis and the strength of the actual or reference transmission power from the antenna panels on the y-axis. Figure 600 shows that network entity 104 has configured a maximum transmission power 611 for a first waveform combination and a different maximum transmission power 613 for a second waveform combination. Network entity 104 can schedule UE 102 to transmit a second waveform combination, which includes the actual transmission power 601 of the first waveform of the scheduled second waveform combination from the first panel and the actual transmission power 603 of the second waveform of the scheduled second waveform combination from the second panel. Referring to Figure 650, UE 102 can determine the PH of the second combination by adding the actual transmission power 601 and the actual transmission power 603 from the two panels and using Equation 1 to determine the PH of the scheduled second waveform combination based on the sum and the maximum transmission power 613 of the second waveform combination.

[0065] In one implementation, for a reference PHR, UE 102 can report the PHR based on a predefined or configured waveform combination. In one implementation, network entity 104 can configure the waveform combination used for reference PHR calculation via RRC signaling, MAC CE, or DCI. In one implementation, waveform combinations for reference PHR calculation can be predefined, such as CP-OFDM+CP-OFDM or DFT-s-OFDM+DFT-s-OFDM. In one implementation, UE 102 can report supported waveform combinations used for reference PHR calculation. In one implementation, UE 102 can report the PHR corresponding to the waveform combination with the maximum or minimum PH or maximum transmission power.

[0066] In one implementation, UE 102 can report UE capability or UE assistance information indicating an offset or power backoff of the maximum transmission power for waveform combinations other than those used for PHR reporting. UE 102 can report the UE assistance information via RRC messages, MAC CE, or uplink control information (UCI). Then, using the PHR for one waveform combination, network entity 104 can calculate the PHR for another waveform combination based on the received UE capability or UE assistance information.

[0067] In one respect, UE 102 can report multiple UE-specific PHRs based on different waveform combinations. Figure 7Two diagrams, 700 and 750, illustrate different combinations of waveforms from dynamic waveform indicators of two antenna panels in uplink multi-panel transmission, representing multiple UE-specific PHRs. Diagrams 700 and 750 show the order of the antenna panels of UE 102 on the x-axis, the intensity of the actual or reference transmission power from the antenna panels on the y-axis, and the waveforms associated with the transmission from the antenna panels on a third axis.

[0068] Figure 700 illustrates that network entity 104 has configured a maximum transmission power 711 for a first waveform combination W1 and different maximum transmission powers 713 for a second waveform combination W2. Network entity 104 can configure UE 102 to transmit the first waveform combination W1 during a scheduled first PUSCH, the first waveform combination including the actual transmission power 701 of the first waveform combination W1 from the first panel and the actual transmission power 703 of the second waveform combination W1 from the second panel. Network entity 104 can configure UE 102 to transmit the second waveform combination W2 during a scheduled second PUSCH, the second waveform combination including the actual transmission power 705 of the first waveform combination W2 from the first panel and the actual transmission power 707 of the second waveform combination W2 from the second panel. Referring to Figure 750, UE 102 can determine the PH1 of the first waveform combination W1 by adding the actual transmission power 701 and actual transmission power 703 from the two panels of the first PUSCH and using Equation 1 based on the sum and the maximum transmission power 711 of the first waveform combination. UE 102 can also determine the PH2 of the second waveform combination W2 by adding the actual transmission power 705 and actual transmission power 707 from the two panels of the second PUSCH and using Equation 1 based on the sum and the maximum transmission power 713 of the second waveform combination.

[0069] In one implementation, UE 102 can report the absolute value of the PHR for each waveform combination via a single MAC CE. In another implementation, UE 102 can report the absolute value of the PHR for each waveform combination via a separate MAC CE. In yet another implementation, UE 102 can report the absolute value of the PHR for a waveform combination and can report the difference between some or all PHRs for other waveform combinations. In one implementation, for a PHR, UE 102 can report PH and / or maximum transmitted power. In one implementation, the waveform combination used for the absolute PHR can be predefined, such as DFT-s-OFDM+DFT-s-OFDM, or can be configured by network entity 104 via RRC signaling, MAC CE, or DCI. In yet another implementation, network entity 104 can configure whether the UE reports the absolute value or the difference value for other waveform combinations. For example, UE 102 can report the absolute value of the PH of a waveform combination (e.g., DFT-s-OFDM+DFT-s-OFDM waveform combination) and the maximum transmission power of that waveform combination, and can report the absolute value or difference of the PH of another waveform combination (e.g., CP-OFDM+CP-OFDM) and / or the maximum transmission power of that other waveform combination.

[0070] In one implementation, UE 102 can report UE capabilities indicating supported waveform combinations for a PHR. Network entity 104 can configure the UE to report a single PHR corresponding to a waveform combination (in... Figure 6 (in the middle) or the report targets multiple PHRs for different waveform combinations (in Figure 7 (in Chinese). Network entity 104 can be configured with a common set or different sets of uplink power control parameters for different waveform combinations. In one implementation, network entity 104 can configure the waveform combination for PHR reporting via RRC signaling, MAC CE, or DCI.

[0071] In one implementation, UE 102 may individually determine the triggering conditions for PHR (e.g., PHR disable timer, transmission power factor change threshold, periodic PHR reporting timer, maximum power transmit (MPE) timer, MPE threshold, etc.) for each waveform combination. In one implementation, network entity 104 may configure a common set or separate sets of triggering conditions or parameters for PHRs for different waveform combinations. If the triggering conditions for PHRs for one or more waveform combinations are met, UE 102 may report the PHR corresponding to the triggered waveform combination. In one implementation, UE 102 may report UE capabilities indicating whether the UE supports the triggering conditions for a PHR specific to a particular waveform combination. In one implementation, UE 102 may report an indicator indicating the waveform combination used for the reported PHR. In one implementation, UE 102 may report an indicator indicating the panel index, TCI index, or control resource set pool index used for each reported PHR. UE 102 may trigger a UE-specific PHR for a particular waveform combination by the occurrence of various events.

[0072] In one implementation, if a PHR prohibition timer (e.g., phr-ProhibitTimer) for a waveform combination or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, since the last transmission of the PHR in that MAC entity, the path loss for a panel, for all panels, or for the UE 102 has changed by more than a configured threshold (e.g., phr-Tx-PowerFactorChange dB) for the waveform combination, based on at least one reference signal (RS) used as a path loss reference for an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity, since the last transmission of the PHR in that MAC entity.

[0073] In one implementation, UE 102 can trigger a PHR for a waveform combination when a periodic PHR timer (e.g., phr-PeriodicTimer) for a particular waveform combination expires.

[0074] In one implementation, UE 102 can trigger PHR for a waveform combination when configured or reconfigured by an upper layer (e.g., the RRC layer) for a particular waveform combination or for the UE's power headroom reporting functionality (which is not used to disable the PHR function).

[0075] In one implementation, UE 102 can trigger a PHR for a given waveform combination when activating a secondary cell (SCell) with a dynamic waveform indication of any MAC entity having a configured uplink (whose parameter firstActiveDownlinkBWP-Id is not set to a dormant BWP).

[0076] In one implementation, when activating a multi-panel transmission with a certain waveform combination or a secondary cell group (SCG) with dynamic waveform indication, UE 102 can trigger a PHR for that waveform combination.

[0077] In one implementation, when adding a multi-panel transmission with a certain waveform combination or a primary / secondary cell (PSCell) with dynamic waveform indication, UE 102 can trigger a PHR for that waveform combination, except when the SCG is disabled (i.e., the PSCell is newly added or changed).

[0078] In one implementation, UE 102 may trigger a PHR for a waveform combination when the MAC entity has UL resources for a new transmission and the following condition is true for any active serving cell of any MAC entity with a configured uplink, and the PHR prohibition timer (e.g., phr-ProhibitTimer) for a particular waveform combination or for the UE expires or has expired. This condition may include: when there are UL resources allocated for transmission or PUCCH transmissions in the cell, and when the MAC entity already has UL resources allocated for transmissions or PUCCH transmissions in the cell, the required power backoff for the waveform combination or for the UE due to power management of the cell has changed beyond a configured threshold (e.g., phr-Tx-PowerFactorChange dB) since the last transmission of the PHR.

[0079] In one implementation, when switching an active BWP of any MAC entity with a configured uplink from a dormant BWP to a non-dormant DL BWP, UE 102 can trigger a PHR for a certain waveform combination.

[0080] In one implementation, if Maximum Power Transmission (MPE) related reporting (e.g., mpe-Reporting-FR2) is enabled, the MPE reporting prohibition timer (e.g., mpe-ProhibitTimer) for a given waveform combination or for the UE is not running, and the following condition is true, then UE 102 may trigger a PHR for that waveform combination. This condition may include: since the last transmission of the PHR in the MAC entity, for at least one active FR2 serving cell, the measured power management power reduction (P-MPR) applied to meet the FR2 MPE requirements is equal to or greater than a first configured threshold (e.g., mpe-Threshold) for that waveform combination or for the UE. The condition may also include: since the last transmission of the PHR in the MAC entity due to the measured P-MPR applied to meet the MPE requirement being equal to or greater than a first configured threshold (e.g., mpe-Threshold) for the waveform combination or for the UE, for at least one active FR2 serving cell, the measured P-MPR applied to meet the FR2 MPE requirement has changed by more than a second configured threshold (e.g., phr-Tx-PowerFactorChange dB) for the waveform combination or for the UE.

[0081] In one implementation, when a PHR prohibition timer (e.g., phr-ProhibitTimer) for a waveform combination or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, if the PH difference between waveforms for a panel, for all panels, or for the UE has exceeded a configured threshold for at least one RS used as a path loss reference for an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity since the last transmission of the PHR in that MAC entity, UE 102 may trigger a PHR for that waveform combination.

[0082] In one implementation, when a PHR prohibition timer (e.g., phr-ProhibitTimer) for a waveform combination or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, the PH for a panel, for all panels, or for the UE is below a configured threshold for at least one RS used as a path loss reference for an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity since the last transmission of the PHR in that MAC entity.

[0083] In one aspect, UE 102 can report a panel-specific PHR based on the panel-specific maximum uplink transmission power of a waveform and the transmission power of that waveform from a particular panel. In one implementation, UE 102 can report the maximum uplink transmission power calculated for the PHR of each panel and the PH of each panel. In one example, UE 102 can calculate the actual or reference PH of waveform w and panel j as follows: (Equation 2) in Indicates the actual or reference maximum transmission power of waveform w and panel j; Indicates the actual or reference transmission power of the waveform w from panel j or the indicated TCI state j.

[0084] If UE 102 has a scheduled PUSCH transmission from panel j, then The actual maximum transmission power of waveform w and panel j can be indicated. In one implementation, the actual maximum transmission power can be determined based on the maximum transmission power minus the maximum power reduction of the PUSCH. Otherwise, if UE 102 does not have scheduled PUSCH transmission, then... The reference maximum transmission power for waveform w and panel j can be indicated. In one implementation, the reference maximum transmission power can be determined based on the maximum transmission power without power degradation. The actual transmission power can be determined based on the configured uplink power control parameters of the PUSCH for waveform w and panel j. The reference transmission power can be determined based on a default set of power control parameters.

[0085] In one respect, UE 102 can report a panel-specific PHR corresponding to a waveform. Network entity 104 can configure a common set or different sets of uplink power control parameters for different waveforms. UE 102 can report one PHR per panel and can report more than one PHR corresponding to different panels.

[0086] Figure 8 Two diagrams, 800 and 850, illustrate a single panel-specific PHR based on a waveform indicating dynamic waveforms from each antenna panel in uplink multi-panel transmission. For PUSCH, the waveform can be CP-OFDM or DFT-s-OFDM. Diagrams 800 and 850 show the order of the antenna panels of UE 102 on the x-axis and the intensity of the actual or reference transmission power from the antenna panels on the y-axis.

[0087] Referring to Figure 800, network entity 104 can configure a maximum transmission power 811 for the first waveform and a different maximum transmission power 813 for the second waveform. Network entity 104 can also schedule UE 102 to transmit the second waveform from both panels. For example, UE 102 can transmit the second waveform from a first panel with an actual transmission power 801 and from a second panel with an actual transmission power 803. Referring to Figure 850, using Equation 2, UE 102 can determine the PH of the second waveform of panel 1 by subtracting the actual transmission power 801 of the second waveform of panel 1 from the maximum transmission power 813 of the second waveform. Similarly, using Equation 2, UE 102 can determine the PH of the second waveform of panel 2 by subtracting the actual transmission power 803 of the second waveform of panel 2 from the maximum transmission power 813 of the second waveform.

[0088] In one implementation, the maximum transmission power of the waveform can be the same for each panel. In another implementation, the maximum transmission power of the waveform can be different across multiple panels. In one implementation, UE 102 can report the maximum transmission power of each panel via UE capability reports and / or RRC messages (e.g., UE assistance information reports). In one implementation, network entity 104 can configure the maximum transmission power of each panel via RRC signaling, MAC CE, or DCI.

[0089] In one implementation, for an actual PHR, UE 102 may report the PHR based on the waveform of the actual transmission of the PUSCH from that panel. In some implementations, UE 102 may report UE capabilities indicating supported waveforms for a panel-specific PHR (e.g., whether UE 102 supports PHRs for CP-OFDM and / or DFT-s-OFDM).

[0090] In one implementation, UE 102 can report a reference PHR based on a predefined or configured waveform. In another implementation, network entity 104 can configure the waveform used for reference PHR calculation via RRC signaling, MAC CE, or DCI. In one implementation, a waveform for reference PHR calculation can be predefined for CP-OFDM or DFT-s-OFDM. In one implementation, UE 102 can report a PHR corresponding to the waveform with the maximum or minimum PH or maximum transmission power.

[0091] In one implementation, UE 102 can report UE capability or UE assistance information indicating an offset or power backoff of the maximum transmit power per panel for one or more waveforms other than the waveform used for PHR reporting. UE 102 can report the UE assistance information via RRC messages, MAC CE, or UCI. Then, using the PHR for a single waveform, network entity 104 can calculate the PHR for another waveform based on the received UE capability or UE assistance information.

[0092] In one respect, UE 102 can report multiple panel-specific PHRs based on different waveforms. Network entity 104 can be configured with a common set or different sets of uplink power control parameters for different waveforms.

[0093] Figure 9 Two diagrams, 900 and 950, illustrate multiple panel-specific PHRs based on different waveforms from each antenna panel in uplink multi-panel transmission. Diagrams 900 and 950 show the order of the antenna panels of UE 102 on the x-axis, the intensity of the actual or reference transmission power from the antenna panels on the y-axis, and the waveforms associated with the transmission from the antenna panels on a third axis.

[0094] Referring to Figure 900, network entity 104 can configure a maximum transmission power 911 for the first waveform W1 and a different maximum transmission power 913 for the second waveform W2. Network entity 104 can schedule UE 102 to transmit waveforms from two panels during a scheduled first PUSCH and a scheduled second PUSCH. For example, during the first PUSCH, UE 102 can be scheduled to transmit the first waveform W1 from a first panel with actual transmission power 901 and from a second panel with actual transmission power 903. During the second PUSCH, UE 102 can be scheduled to transmit the second waveform W2 from a first panel with actual transmission power 905 and from a second panel with actual transmission power 907.

[0095] Referring to Figure 950, UE 102 can determine the PH1 of the first waveform W1 of the first panel by subtracting the actual transmission power 901 of the first waveform W1 during the first PUSCH from the maximum transmission power 911 of the first waveform using Equation 2. UE 102 can determine the PH2 of the second waveform W2 of the first panel by subtracting the actual transmission power 905 of the second waveform W2 during the second PUSCH from the maximum transmission power 913 of the second waveform using Equation 2. UE 102 can determine the PH3 of the first waveform W1 of the second panel by subtracting the actual transmission power 903 of the first waveform W1 during the first PUSCH from the maximum transmission power 911 of the first waveform using Equation 2. UE 102 can determine the PH4 of the second waveform W2 of the second panel by subtracting the actual transmission power 907 of the second waveform W2 during the second PUSCH from the maximum transmission power 913 of the second waveform using Equation 2.

[0096] In one implementation, UE 102 can report the absolute value of the PHR for each waveform per panel via a single MAC CE. In another implementation, UE 102 can report the absolute value of the PHR for each waveform and / or each panel via separate MAC CEs. In another implementation, UE 102 can report the absolute value of the PHR for a waveform per panel or for a waveform per panel, and can report the difference between partial or all PHRs for other waveforms of the same panel or all panels. In one implementation, for a PHR, UE 102 can report PH and / or maximum transmission power. In one implementation, the waveform used for the absolute PHR can be predefined, such as DFT-s-OFDM or CP-OFDM, or can be configured by network entity 104 via RRC signaling, MAC CE, or DCI. In one implementation, network entity 104 can configure whether the UE reports the absolute or differential values ​​of other waveforms.

[0097] In one implementation, UE 102 may report the absolute value of the pH of a waveform (e.g., a DFT-s-OFDM waveform) and the maximum transmission power of that waveform, and may report the absolute value or difference of the pH of another waveform (e.g., a CP-OFDM waveform) and / or the maximum transmission power of that other waveform.

[0098] In one implementation, UE 102 can report UE capabilities indicating supported waveforms for PHR. Network entity 104 can configure UE 102 to report a single PHR per panel corresponding to a given waveform (in... Figure 8 (in the middle) or the report is for multiple PHRs per panel for different waveforms (in Figure 9(in Chinese). Network entity 104 can be configured with a common set or different sets of uplink power control parameters for different waveforms. In one implementation, network entity 104 can configure the waveform for PHR reporting via RRC signaling, MAC CE, or DCI.

[0099] In one implementation, UE 102 can individually determine the triggering conditions for a PHR (e.g., a PHR disable timer, a transmission power factor change threshold, a periodic PHR reporting timer, a maximum power transmit (MPE) timer, an MPE threshold, etc.) for each waveform of each panel. In one implementation, network entity 104 can configure a common set or separate sets of triggering conditions or parameters for panel-specific PHRs for different waveforms. If the triggering conditions for a PHR from one or more waveforms from a panel are met, UE 102 can report the PHR corresponding to the triggered waveform for that panel. In one implementation, UE 102 can report UE capabilities indicating whether the UE supports triggering conditions for a waveform-specific PHR. In one implementation, UE 102 can report an indicator indicating the waveform used for the reported PHR. In one implementation, UE 102 can report an indicator indicating the panel index, TCI index, or control resource set pool index used for each reported PHR. UE 102 can trigger a panel-specific PHR for a waveform by the occurrence of various events.

[0100] In one implementation, if a PHR prohibition timer (e.g., phr-ProhibitTimer) for a particular waveform, for the panel, or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, since the last transmission of PHR in that MAC entity, the path loss for the panel, for all panels, or for UE 102 has changed by more than a configured threshold (e.g., phr-Tx-PowerFactorChange dB) for at least one reference signal (RS) used as a reference for the path loss of an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity, since the last transmission of PHR in that MAC entity, then UE 102 may trigger a PHR for that waveform.

[0101] In one implementation, UE 102 can trigger a PHR for a waveform when a periodic PHR timer (e.g., phr-PeriodicTimer) for a particular waveform, the panel, or the UE expires.

[0102] In one implementation, UE 102 can trigger PHR for a waveform when the power headroom reporting functionality for a waveform, for the panel, or for the UE is configured or reconfigured by an upper layer (e.g., the RRC layer) (this is not used to disable the PHR function).

[0103] In one implementation, UE 102 can trigger a PHR for a given waveform when activating a multi-panel transmission with a certain waveform or a secondary cell (SCell) with a dynamic waveform indication of any MAC entity having a configured uplink (whose parameter firstActiveDownlinkBWP-Id is not set to a dormant BWP).

[0104] In one implementation, when UE 102 activates a multi-panel transmission with a certain waveform or a secondary cell group (SCG) with dynamic waveform indication, it can trigger a PHR for that waveform.

[0105] In one implementation, when adding a multi-panel transmission with a certain waveform or a primary / secondary cell (PSCell) with dynamic waveform indication, UE 102 can trigger a PHR for that waveform, except when the SCG is disabled (i.e., the PSCell is newly added or changed).

[0106] In one implementation, UE 102 may trigger a PHR for a waveform when the MAC entity has UL resources for a new transmission and the following condition is true for any active serving cell of any MAC entity with a configured uplink, and the PHR prohibition timer (e.g., phr-ProhibitTimer) for a particular waveform or for the UE expires or has expired. This condition may include: when there are UL resources allocated for transmission or PUCCH transmissions in the cell, and when the MAC entity already has UL resources allocated for transmissions or PUCCH transmissions in the cell, the required power backoff for the waveform, for the panel, or for the UE due to power management of the cell has changed beyond a configured threshold (e.g., phr-Tx-PowerFactorChange dB) since the last PHR transmission.

[0107] In one implementation, UE 102 can trigger a PHR for a specific waveform when switching an active BWP of any MAC entity with a configured uplink from a dormant BWP to a non-dormant DL BWP.

[0108] In one implementation, if Maximum Power Transmission (MPE) related reporting (e.g., mpe-Reporting-FR2) is enabled, the MPE reporting prohibition timer (e.g., mpe-ProhibitTimer) for a given waveform, the panel, or the UE is not running, and the following condition is true, then UE 102 may trigger a PHR for that waveform. This condition may include: since the last transmission of the PHR in the MAC entity, for at least one active FR2 serving cell, the measured power management power reduction (P-MPR) applied to meet the FR2 MPE requirements is equal to or greater than a first configured threshold (e.g., mpe-Threshold) for that waveform, the panel, or the UE. The condition may also include: since the last transmission of the PHR in the MAC entity due to the measured P-MPR applied to meet the MPE requirement being equal to or greater than a first configured threshold (e.g., mpe-Threshold) for the waveform, panel, or UE, for at least one active FR2 serving cell, the measured P-MPR applied to meet the FR2 MPE requirement has changed by more than a second configured threshold (e.g., phr-Tx-PowerFactorChange dB) for the waveform, panel, or UE.

[0109] In one implementation, when a PHR prohibition timer (e.g., phr-ProhibitTimer) for a particular waveform or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, if the PH difference between waveforms for that panel or for all panels has exceeded a configured threshold for at least one RS used as a path loss reference for an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity since the last transmission of PHR in that MAC entity, UE 102 may trigger a PHR for that waveform.

[0110] In one implementation, when a PHR prohibition timer (e.g., phr-ProhibitTimer) for a particular waveform or for the UE expires or has expired, and when any MAC entity has uplink resources for a new transmission, UE 102 may trigger a PHR for the waveform if, since the last transmission of the PHR in that MAC entity, the PH for a particular panel or for all panels is below a configured threshold for at least one RS used as a path loss reference for an active serving cell (whose active downlink bandwidth portion (BWP) is not a dormant BWP) of that MAC entity.

[0111] Figure 10 to Figure 11 Showing the implementation Figure 5 to Figure 9 One or more aspects of the method. Specifically, Figure 10 This is shown as implemented by UE 102. Figure 5 to Figure 9 One or more aspects of. Figure 11 This is shown as being implemented by network entity 104. Figure 5 to Figure 9 One or more aspects of.

[0112] Figure 10 This is a flowchart of a wireless communication method 1000 at the UE for reporting power margin when the UE supports dynamic waveform indication in uplink multi-panel transmission. (Reference) Figure 1 , Figure 5 and Figure 12 The method can be executed by UE 102, UE equipment 1202, etc., which may include memories 1206', 1216, 1226' and may correspond to the entire UE 102 or the entire UE equipment 1202, or components of UE 102 or UE equipment 1202 (such as wireless baseband processor 1226 and / or application processor 1206).

[0113] The UE sends a 1002 signal to the network entity to support the ability to indicate dynamic waveforms in uplink multi-panel transmissions. For example, refer to... Figure 5 UE 102 sends 502 information to network entity 104 regarding UE 102's ability to support dynamic waveform indication in uplink multi-panel transmission. In one implementation, UE 102 may report UE capabilities indicating supported configurations for dynamic waveform indication, simultaneous transmission from multiple antenna panels, and PHR calculation and reporting schemes.

[0114] The UE receives signaling 1004 from the network entity to configure at least one PHR to support dynamic waveform indication in uplink multi-panel transmission. For example, refer to Figure 5 UE 102 receives from network entity 104 504 RRC signaling (e.g., RRCReconfiguration) to configure the PHR for dynamic waveform indication in uplink multi-panel transmission. In one implementation, the signaling may configure one or more RRC parameters for simultaneous uplink multi-panel transmission (e.g., configuring two SRS resource sets for codebook-based or non-codebook-based transmission for a bandwidth portion or serving cell), and may configure multiplexing schemes for PUSCH from multiple panels (e.g., spatial domain multiplexing (SDM) or single-frequency network (SFN)). In one implementation, the signaling may configure one or more RRC parameters to enable dynamic waveform indication. In one implementation, the signaling may configure one or more RRC parameters for UE-specific PHR or panel-specific PHR.

[0115] The UE sends a scheduling request (1008) to the network entity for either a UE-specific PHR or a panel-specific PHR, where the UE-specific PHR is associated with at least one waveform combination of a dynamic waveform indicator, and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indicator. For example, refer to... Figure 5 UE 102 sends a 508 scheduling request to network entity 104 to request uplink resources for one or more UE-specific PHRs or panel-specific PHRs. In one implementation, the scheduling request may be specific to a UE-specific PHR or a panel-specific PHR. In one implementation, when a trigger condition for a UE-specific PHR is met, UE 102 may calculate one or more UE-specific PHRs for one or more combinations of waveforms from multiple antenna panels. In one implementation, when a trigger condition for a panel-specific PHR is met, UE 102 may calculate one or more panel-specific PHRs for one or more waveforms from each of the multiple antenna panels.

[0116] The UE receives at least one uplink grant from a network entity. For example, refer to... Figure 5 In response to a scheduling request, UE 102 receives one or more uplink grants (such as one or more DCIs) from network entity 104 to schedule PUSCH transmissions and allocate resources for PUSCH transmissions.

[0117] The UE sends 1012 to the network entity, including at least one PHR that is either a UE-specific PHR associated with at least one waveform combination or a panel-specific PHR associated with at least one waveform. For example, refer to Figure 5 UE 102 sends 512 UE-specific PHR or panel-specific PHR for one or more waveforms of a dynamic waveform indication at a scheduled PUSCH transmission to network entity 104. In one implementation, UE 102 may use the MAC-CE of the scheduled PUSCH transmission to send the UE-specific PHR or the panel-specific PHR.

[0118] Figure 10 A method from the UE side of the wireless communication link is described, while Figure 11 A method from the network side of a wireless communication link is described.

[0119] Figure 11 This is a flowchart 1100 of a method for wireless communication at a network entity to receive a power margin report when the UE supports dynamic waveform indication in uplink multi-panel transmission. (See reference) Figure 1 , Figure 5 and Figure 12The method can be performed by one or more network entities 104, which can correspond to a base station or a unit of a base station (such as RU 106, DU 108, CU 110, RU processor 1306, DU processor 1326, CU processor 1346, etc.). One or more network entities 104 may include memories 1306', 1326', and 1346', and can correspond to the entirety of one or more network entities 104, or components of one or more network entities 104 (such as RU processor 1306, DU processor 1326, or CU processor 1346).

[0120] The network entity receives 1102 from the UE to support dynamic waveform indication in uplink multi-panel transmission. For example, refer to Figure 5 Network entity 104 receives from UE 502 information about UE 102's capabilities to support dynamic waveform indication in uplink multi-panel transmission. In one implementation, UE capabilities may indicate supported configurations for dynamic waveform indication, simultaneous transmission from multiple antenna panels, and PHR calculation and reporting schemes.

[0121] The network entity sends a 1104 signaling message to the UE to configure at least one PHR to support dynamic waveform indication in uplink multi-panel transmission. For example, refer to Figure 5 Network entity 104 sends 504 to UE 102 to configure RRC signaling (e.g., RRCReconfiguration) for the PHR of dynamic waveform indication in uplink multi-panel transmission. In one implementation, the signaling may configure one or more RRC parameters for simultaneous uplink multi-panel transmission (e.g., configuring two SRS resource sets for codebook-based or non-codebook-based transmission for a bandwidth portion or serving cell), and may configure multiplexing schemes for PUSCH from multiple panels (e.g., spatial domain multiplexing (SDM) or single-frequency network (SFN)). In one implementation, the signaling may configure one or more RRC parameters to enable dynamic waveform indication. In one implementation, the signaling may configure one or more RRC parameters for UE-specific PHR or panel-specific PHR.

[0122] The network entity receives a scheduling request from the UE for either a UE-specific PHR or a panel-specific PHR, where the UE-specific PHR is associated with at least one waveform combination of a dynamic waveform indicator, and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indicator. For example, refer to... Figure 5Network entity 104 receives a scheduling request 508 from UE 102 to request uplink resources for one or more UE-specific PHRs or panel-specific PHRs. In one implementation, the scheduling request may be specific to a UE-specific PHR or a panel-specific PHR. In one implementation, one or more UE-specific PHRs may be associated with one or more combinations of waveforms from multiple antenna panels of UE 102. In one implementation, one or more panel-specific PHRs may be associated with one or more waveforms from each of the multiple antenna panels of UE 102.

[0123] The network entity sends at least one uplink grant (1110) to the UE. For example, refer to... Figure 5 In response to a scheduling request, network entity 104 sends one or more uplink grants (such as one or more DCIs) to UE 102 to schedule PUSCH transmissions and allocate resources for PUSCH transmissions.

[0124] The network entity receives 1112 from the UE, including at least one UE-specific PHR associated with at least one waveform combination or a panel-specific PHR associated with at least one waveform. For example, refer to Figure 5 Network entity 104 receives from UE 102 512 a UE-specific PHR for one or more waveforms indicating a dynamic waveform at a scheduled PUSCH transmission, or a panel-specific PHR for one or more combinations of such dynamic waveforms. In one implementation, network entity 104 can receive the UE-specific PHR or panel-specific PHR via the MAC-CE of the scheduled PUSCH transmission.

[0125] like Figure 12 The described UE equipment 1202 can execute the method of flowchart 1000. For example... Figure 13 As described in the document, one or more network entities 104 can execute the methods of flowchart 1100.

[0126] Figure 12Figure 1200 illustrates an example of a hardware implementation of UE device 1202. UE device 1202 may be UE 102, a component of UE 102, or may implement UE functions. UE device 1202 may include an application processor 1206, which may have on-chip memory 1206'. In the example, application processor 1206 may be coupled to a secure digital (SD) card 1208 and / or a display 1210. Application processor 1206 may also be coupled to a sensor module 1212, a power supply 1214, an additional memory module 1216, a camera 1218, and / or other related components. For example, sensor module 1212 may control a barometer / altimeter, motion sensors (such as an inertial management unit (IMU), gyroscope, accelerometer), a light detection and ranging (LIDAR) device, a radio-assisted detection and ranging (RADAR) device, a sound navigation and ranging (SONAR) device, a magnetometer, an audio device, and / or other technologies for positioning.

[0127] The UE equipment 1202 may further include a wireless baseband processor 1226, which may be referred to as a modem. The wireless baseband processor 1226 may have on-chip memory 1226'. Together with and similarly to the application processor 1206, the wireless baseband processor 1226 may also be coupled to a sensor module 1212, a power supply 1214, an additional memory module 1216, a camera 1218, and / or other related components. The wireless baseband processor 1226 may additionally be coupled to one or more Subscriber Identity Module (SIM) cards 1220 and / or one or more transceivers 1230 (e.g., wireless RF transceivers).

[0128] Within one or more transceivers 1230, the UE equipment 1202 may include a Bluetooth module 1232, a WLAN module 1234, an SPS module 1236 (e.g., a GNSS module), and / or a cellular module 1238. The Bluetooth module 1232, WLAN module 1234, SPS module 1236, and cellular module 1238 may each include an on-chip transceiver (TRX), or in some cases, only a transmitter (TX) or only a receiver (RX). The Bluetooth module 1232, WLAN module 1234, SPS module 1236, and cellular module 1238 may each include a dedicated antenna and / or communicate with one or more other nodes using antenna 1240. For example, UE equipment 1202 can communicate with another UE (e.g., sidelink communication) and / or with network entity 104 (e.g., uplink / downlink communication) via transceiver 1230 and antenna 1240, wherein network entity 104 may correspond to a base station or a unit of a base station (such as RU106, DU 108 or CU 110).

[0129] The wireless baseband processor 1226 and application processor 1206 may each include computer-readable media / memory 1226' and 1206', respectively. An additional memory module 1216 may also be considered a computer-readable media / memory. Each computer-readable media / memory 1226', 1206', and 1216 may be non-transitory. The wireless baseband processor 1226 and application processor 1206 may each be responsible for general processing, including executing software stored on the computer-readable media / memory 1226', 1206', and 1216. When executed by the wireless baseband processor 1226 / application processor 1206, this software causes the wireless baseband processor 1226 / application processor 1206 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 1226 / application processor 1206 during software execution. The wireless baseband processor 1226 / application processor 1206 may be a component of UE 102. UE equipment 1202 may be a processor chip (e.g., a modem and / or an application) and includes only the wireless baseband processor 1226 and / or the application processor 1206. In other examples, UE equipment 1202 may be the entire UE 102 and may include additional modules for equipment 1202.

[0130] like Figure 1 The discussion and such as about Figure 10 The implemented PHR calculation component 140 (also referred to as "PHR calculation component 140") for dynamic waveform indication in uplink multi-panel transmission is configured to receive signaling from a network entity for configuring at least one Power Headroom Report (PHR) to support dynamic waveform indication in uplink multi-panel transmission; and to send at least one PHR, including a UE-specific PHR or a panel-specific PHR, to the network entity. The UE-specific PHR is associated with at least one waveform combination of dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform of dynamic waveform indication.

[0131] PHR computing component 140 may be located within application processor 1206 (e.g., at 140a), wireless baseband processor 1226 (e.g., at 140b), or both application processor 1206 and wireless baseband processor 1226. PHR computing components 140a-140b may be one or more hardware components specifically configured to execute the stated process / algorithm, implemented by one or more processors configured to execute the stated process / algorithm, stored in a computer-readable medium for use by one or more processors, or a combination thereof.

[0132] Figure 13Figure 1300 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 functions. 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 1346, which may have on-chip memory 1346'. In some aspects, CU 110 may further include an additional memory module 1356 and / or a communication interface 1348, both of which may be coupled to the CU processor 1346. CU 110 may communicate with DU 108 via a midhaul link 162 (such as an F1 interface between the communication interface 1348 of CU 110 and the communication interface 1328 of DU 108).

[0133] DU 108 may include a DU processor 1326, which may have on-chip memory 1326'. In some aspects, DU 108 may further include an additional memory module 1336 and / or a communication interface 1328, both of which may be coupled to the DU processor 1326. DU 108 may communicate with RU 106 via a frontlink 160 between DU 108's communication interface 1328 and RU 106's communication interface 1308.

[0134] RU 106 may include an RU processor 1306, which may have on-chip memory 1306'. In some aspects, RU 106 may further include an additional memory module 1316, a communication interface 1308, and one or more transceivers 1330, all of which may be coupled to the RU processor 106. RU 106 may further include an antenna 1340, which may be coupled to one or more transceivers 1330, such that RU 106 can communicate with UE 102 via the antenna 1340 through one or more transceivers 1330.

[0135] On-chip memories 1306', 1326', 1346' and additional memory modules 1316, 1336, 1356 can each be considered as computer-readable media / memory. Each computer-readable medium / memory can be non-transitory. Each of processors 1306, 1326, 1346 is responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by the corresponding processor 1306, 1326, 1346, the software causes the processor 1306, 1326, 1346 to perform the various functions described herein. The computer-readable medium / memory can also be used to store data manipulated by processors 1306, 1326, 1346 during software execution. In the example, the channel correlation report 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.

[0136] like Figure 1 The discussion and such as about Figure 11 The implemented PHR configuration component 150 (also referred to as "PHR configuration component 150") for dynamic waveform indication in uplink multi-panel transmission is configured to send signaling to the UE for configuring at least one PHR to support dynamic waveform indication in uplink multi-panel transmission; and to receive from the UE at least one PHR including a UE-specific PHR or a panel-specific PHR. The UE-specific PHR is associated with at least one waveform combination of dynamic waveform indication, and the panel-specific PHR is associated with at least one waveform of dynamic waveform indication.

[0137] CSI-RS transmission component 150 may be located within one or more processors (such as RU processor 1306) of one or more network entities 104 (e.g., at 150a), within DU processor 1326 (e.g., at 150b), and / or within CU processor 1346 (e.g., at 150c). CSI-RS transmission components 150a-150c may be one or more hardware components specifically configured to execute the stated process / algorithm, implemented by one or more processors 1306, 1326, 1346 configured to execute the stated process / algorithm, and stored in a computer-readable medium for use by one or more processors 1306, 1326, 1346, or combinations thereof.

[0138] The specific order or hierarchy of boxes in the processes and flowcharts disclosed herein is an illustration of exemplary methods. Therefore, the specific order or hierarchy of boxes in the processes and flowcharts can be rearranged. Some boxes can also be combined or deleted. Dashed lines may indicate optional elements in the diagrams. The appended method claims present elements of various boxes in the exemplary order and are not limited to the specific order or hierarchy presented in the claims, processes, and flowcharts.

[0139] 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.

[0140] 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 illustrated 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 overall system.

[0141] 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 functions 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.

[0142] If the functions described herein are implemented in software, these functions 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] 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, these phrases (e.g., "when") do not imply an immediate action in response to the occurrence of an action or during the occurrence of an action, but simply imply that an action will occur if a certain 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 in this disclosure 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 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.

[0147] 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 collection of elements having a quantity of one or more elements.

[0148] 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). Sometimes, “X” is used generally to indicate multiple variations of a feature. For example, “X06” may generally refer to all reference numbers ending in “06” (e.g., 206, 306, 406, etc.).

[0149] 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.”

[0150] The following examples are illustrative only and may be combined with other examples or teachings described herein without limitation.

[0151] Example 1 is a method of wireless communication at a UE, comprising: receiving from a network entity signaling for configuring at least one power headroom report (PHR) to support dynamic waveform indication in uplink multi-panel transmission; and sending to the network entity at least one PHR including a UE-specific PHR or a panel-specific PHR, the UE-specific PHR being associated with at least one waveform combination of dynamic waveform indication, and the panel-specific PHR being associated with at least one waveform of dynamic waveform indication.

[0152] Example 2 can be combined with Example 1 and includes: the signaling configuration is used to determine one or more uplink power control parameters for a UE-specific PHR or a panel-specific PHR.

[0153] Example 3 can be combined with Example 1 or 2 and includes: the difference between the maximum uplink transmission power of at least one waveform combination in a UE-specific PHR and the total uplink transmission power associated with waveforms of at least one waveform combination from multiple panels transmitted in a multi-panel manner.

[0154] Example 4 can be combined with Example 3 and includes: the total uplink transmission power includes at least one of the following: the sum of actual transmission power associated with waveforms of at least one waveform combination; or the sum of reference transmission power associated with waveforms of at least one waveform combination.

[0155] Example 5 can be combined with Examples 1, 2 or 3 and includes: at least one waveform combination includes the same waveform from multiple panels or different waveforms from multiple panels.

[0156] Example 6 may be combined with Examples 1, 2, or 3 and includes: UE-specific PHRs include at least one of the following: the maximum power margin (PH) selected from a plurality of waveform combinations, the minimum PH selected from a plurality of waveform combinations, or the maximum value of the maximum uplink transmission power selected from a plurality of waveform combinations; the maximum PH selected from a plurality of waveform combinations, and the offset of the maximum uplink transmission power of a waveform combination not selected for PHR from the maximum uplink transmission power of the selected waveform combination; the PH associated with a first waveform combination, and the difference between the PH associated with the first waveform combination and the PH associated with a second waveform combination; or a plurality of UE-specific PHRs associated with different waveform combinations.

[0157] Example 7 can be combined with Examples 1, 2 or 3 and includes: whether the signaling configuration UE-specific PHR includes a PHR associated with a single waveform combination or includes multiple PHRs associated with multiple waveform combinations.

[0158] Example 8 can be combined with Example 1 and includes: the signaling configuration for triggering conditions for the UE to send a UE-specific PHR or a panel-specific PHR.

[0159] Example 9 can be combined with Example 1 and includes: sending UE capabilities to a network entity to support a UE-specific PHR or panel-specific PHR associated with dynamic waveform indication in uplink multi-panel transmission.

[0160] Example 10 can be combined with Example 1 and includes: sending a scheduling request for a UE-specific PHR or a panel-specific PHR to a network entity; and receiving at least one uplink grant from the network entity to send the UE-specific PHR or the panel-specific PHR.

[0161] Example 11 can be combined with Example 1 or 2 and includes: a panel-specific PHR comprising the difference between the maximum uplink transmission power of at least one waveform and the actual uplink transmission power or reference uplink transmission power associated with at least one waveform combination from the panel in a multi-panel transmission.

[0162] Example 12 can be combined with Example 11 and includes: the uplink transmission power includes at least one of the following: actual transmission power associated with at least one waveform from the panel transmitted by the multi-panel; or reference transmission power associated with at least one waveform from the panel transmitted by the multi-panel.

[0163] Example 13 may be combined with Examples 1, 2 or 11 and includes: a panel-specific PHR including at least one of the following: one or more power margins (PH) associated with one or more different waveforms; a PH associated with a first waveform from the panel, and the difference between the PHR associated with the first waveform and the PH associated with a second waveform from the panel; or multiple panel-specific PHRs associated with at least one waveform from multiple panels transmitted in a multi-panel manner.

[0164] Example 14 can be combined with Examples 1, 2 or 11 and includes: whether the signaling configuration panel-specific PHR includes a PHR associated with at least one waveform from one panel transmitted across multiple panels or includes a PHR associated with at least one waveform from multiple panels transmitted across multiple panels.

[0165] Example 15 is a method for wireless communication at a UE, comprising: sending to the UE a configuration of a plurality of Transmission Configuration Indicator (TCI) states; sending to the UE signaling for configuring at least one Power Headroom Report (PHR) to support dynamic waveform indication in uplink multi-panel transmission; and receiving from the UE at least one PHR including a UE-specific PHR or a panel-specific PHR, the UE-specific PHR being associated with at least one waveform combination of dynamic waveform indication, and the panel-specific PHR being associated with at least one waveform of dynamic waveform indication.

[0166] Example 16 can be combined with Example 15 and includes: the signaling configuration for determining one or more uplink power control parameters for a UE-specific PHR or a panel-specific PHR.

[0167] Example 17 can be combined with Example 15 and includes: receiving from the UE a UE capability to support a UE-specific PHR or a panel-specific PHR associated with dynamic waveform indication in uplink multi-panel transmission.

[0168] Example 18 may be combined with Example 15 and include: the signaling configuration includes at least one of the following: whether the UE-specific PHR includes a PHR associated with a waveform combination or includes multiple PHRs associated with multiple waveform combinations; or whether the panel-specific PHR includes a PHR associated with at least one waveform from a panel transmitted across multiple panels or includes a PHR associated with at least one waveform from multiple panels transmitted across multiple panels.

[0169] Example 19 can be combined with Example 15 and includes: the signaling configuration for triggering conditions for the UE (102) to send a UE-specific PHR or a panel-specific PHR.

[0170] Example 20 is a device for wireless communication, including a memory, a transceiver, and a processor coupled to the memory and the transceiver, the device being configured to implement the method as described in any one of Examples 1 to 19.

[0171] Example 21 may be combined with Example 15 or 16 and includes: UE-specific PHRs include at least one of the following: the difference between the maximum uplink transmission power of at least one waveform combination and the total uplink transmission power associated with waveforms of at least one waveform combination from multiple panels transmitted by multiple panels; or multiple UE-specific PHRs associated with different waveform combinations.

[0172] Example 22 can be combined with Example 15 or 16 and includes: whether the signaling configuration UE-specific PHR includes a PHR associated with a single waveform combination or includes multiple PHRs associated with multiple waveform combinations.

[0173] Example 23 can be combined with Example 15 and includes: receiving a scheduling request from the UE for a UE-specific PHR or a panel-specific PHR; and sending at least one uplink grant to the UE for sending the UE-specific PHR or the panel-specific PHR.

[0174] Example 24 may be combined with Example 15 or 16 and includes: a panel-specific PHR comprising at least one of the following: the difference between the maximum uplink transmission power of at least one waveform and the actual uplink transmission power or reference uplink transmission power associated with at least one combination of waveforms from multiple panels transmitted by multiple panels; or multiple panel-specific PHRs associated with at least one waveform from multiple panels transmitted by multiple panels.

Claims

1. A method for wireless communication at a user equipment (UE) (102), comprising: Receive (1004) signaling from network entity (104) for configuring at least one power headroom report PHR to support dynamic waveform indication in uplink multi-panel transmission; as well as Send (1012) to the network entity (104) at least one PHR including a UE-specific PHR or a panel-specific PHR, wherein the UE-specific PHR is associated with at least one waveform combination of the dynamic waveform indication and the panel-specific PHR is associated with at least one waveform of the dynamic waveform indication.

2. The method of claim 1, wherein the signaling configuration is used to determine one or more uplink power control parameters of the UE-specific PHR or the panel-specific PHR.

3. The method of any one of claims 1 or 2, wherein the UE-specific PHR comprises the difference between the maximum uplink transmission power of the at least one waveform combination and the total uplink transmission power associated with the waveforms of the at least one waveform combination from the plurality of panels transmitted from the multi-panel transmission.

4. The method of claim 3, wherein the total uplink transmission power includes at least one of the following: The sum of the actual transmitted power associated with the waveforms combined with the at least one waveform; or The sum of reference transmission power associated with the waveforms combined with the at least one waveform.

5. The method of any one of claims 1, 2 or 3, wherein the at least one waveform combination comprises the same waveform from the plurality of panels or different waveforms from the plurality of panels.

6. The method of any one of claims 1, 2, or 3, wherein the UE-specific PHR comprises at least one of the following: The maximum power margin PH selected from multiple waveform combinations, the minimum PH selected from the multiple waveform combinations, or the maximum value of the maximum uplink transmission power selected from the multiple waveform combinations; The maximum PH selected from multiple waveform combinations, and the offset of the maximum uplink transmission power of a waveform combination that was not selected for PHR from the maximum uplink transmission power of the selected waveform combination; The pH associated with the first waveform combination, and the difference between the pH associated with the first waveform combination and the pH associated with the second waveform combination; or Multiple UE-specific PHRs associated with different waveform combinations.

7. The method of any one of claims 1, 2 or 3, wherein the signaling configuration of the UE-specific PHR includes either a PHR associated with a waveform combination or multiple PHRs associated with multiple waveform combinations.

8. The method of claim 1, wherein the signaling configuration is used for triggering conditions for the UE (102) to send the UE-specific PHR or the panel-specific PHR.

9. The method of claim 1, further comprising: Send (1002) to the network entity (104) to support UE capabilities of the UE-specific PHR or the panel-specific PHR associated with the dynamic waveform indication in the uplink multi-panel transmission.

10. The method of claim 1, further comprising: Send (1008) a scheduling request for the UE-specific PHR or the panel-specific PHR to the network entity (104); as well as Receive (1010) at least one uplink grant from the network entity (104) to send the UE-specific PHR or the panel-specific PHR.

11. The method of any one of claims 1 or 2, wherein the panel-specific PHR comprises the difference between the maximum uplink transmission power of the at least one waveform and the actual uplink transmission power or reference uplink transmission power associated with the at least one waveform from the panel transmitted from the multi-panel transmission.

12. The method of claim 11, wherein the uplink transmission power comprises at least one of the following: The actual transmitted power associated with the at least one waveform from the panel transmitted from the multi-panel transmission; or Reference transmission power associated with at least one waveform transmitted from the panel via the multi-panel transmission.

13. The method of any one of claims 1, 2, or 11, wherein the panel-specific PHR comprises at least one of the following: One or more power margins PH associated with one or more different waveforms; The difference between the pH associated with the first waveform from the panel, the PHR associated with the first waveform, and the pH associated with the second waveform from the panel; or Multiple panel-specific PHRs associated with at least one waveform from multiple panels transmitted from the multi-panel transmission.

14. The method of any one of claims 1, 2, or 11, wherein the signaling configuration of the panel-specific PHR includes either a PHR associated with the at least one waveform from one panel of the multi-panel transmission or a PHR associated with the at least one waveform from multiple panels of the multi-panel transmission.

15. A method for wireless communication at a network entity (104), comprising: Send (1102) signaling to user equipment (UE) (102) for configuring at least one power headroom report (PHR) to support dynamic waveform indication in uplink multi-panel transmission; as well as The UE (102) receives (1112) at least one PHR including a UE-specific PHR or a panel-specific PHR, the UE-specific PHR being associated with at least one waveform combination of the dynamic waveform indication, and the panel-specific PHR being associated with at least one waveform of the dynamic waveform indication.

16. The method of claim 15, wherein the signaling configuration is used to determine one or more uplink power control parameters of the UE-specific PHR or the panel-specific PHR.

17. The method of claim 15, further comprising: Receive (1104) from the UE (102) UE capabilities for supporting the UE-specific PHR or the panel-specific PHR associated with the dynamic waveform indication in uplink multi-panel transmission.

18. The method of claim 15, wherein the signaling configuration includes at least one of the following: Does the UE-specific PHR include a PHR associated with a waveform combination or include multiple PHRs associated with multiple waveform combinations? The panel-specific PHR includes either the PHR associated with at least one waveform from one panel of the multi-panel transmission or the PHR associated with at least one waveform from multiple panels of the multi-panel transmission.

19. The method of claim 15, wherein the signaling configuration is used for triggering conditions for the UE (102) to send the UE-specific PHR or the panel-specific PHR.

20. A device for wireless communication, comprising a memory, a transceiver, and a processor, the processor being coupled to the memory and the transceiver, the device being configured to implement the method as claimed in any one of claims 1 to 19.

Images