WO2024073273A1 - Mode de transmission en liaison montante à huit ports à pleine puissance - Google Patents

Mode de transmission en liaison montante à huit ports à pleine puissance Download PDF

Info

Publication number
WO2024073273A1
WO2024073273A1 PCT/US2023/074567 US2023074567W WO2024073273A1 WO 2024073273 A1 WO2024073273 A1 WO 2024073273A1 US 2023074567 W US2023074567 W US 2023074567W WO 2024073273 A1 WO2024073273 A1 WO 2024073273A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
power
power scaling
network node
scaling factor
Prior art date
Application number
PCT/US2023/074567
Other languages
English (en)
Inventor
Yi Huang
Peter Gaal
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US18/469,358 external-priority patent/US20240114468A1/en
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Publication of WO2024073273A1 publication Critical patent/WO2024073273A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0628—Diversity capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for a full power eight-port uplink transmission mode.
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmission power, or the like).
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC- FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE).
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include one or more network nodes that support communication for wireless communication devices, such as a user equipment (UE) or multiple UEs.
  • a UE may communicate with a network node via downlink communications and uplink communications.
  • Downlink (or “DL”) refers to a communication link from the network node to the UE
  • uplink (or “UL”) refers to a communication link from the UE to the network node.
  • Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and/or a wireless personal area network (WPAN) link, among other examples).
  • SL sidelink
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • New Radio which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP.
  • NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM and/or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM single-carrier frequency division multiplexing
  • MIMO multiple-input multiple-output
  • the user equipment may include one or more memories and one or more processors coupled to the one or more memories.
  • the one or more processors may be individually or collectively configured to cause the UE to configure, based on a precoder and a total power scaling factor, a total transmission power of a physical uplink shared channel (PUS CH) communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a power amplifier (PA) of a set of PAs.
  • the memory may comprise instructions executable by the one or more processors to cause the UE to transmit, to a network node, the PUSCH communication based on the total transmission power.
  • the network node may include one or more memories and one or more processors coupled to the one or more memories.
  • the one or more processors may be individually or collectively configured to cause the network node to receive, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the memory may comprise instructions executable by the one or more processors to cause the network node to perform a wireless communication task based on receiving the PUSCH communication.
  • the method may include configuring, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the method may include transmitting, to a network node, the PUSCH communication based on the total transmission power.
  • the method may include receiving, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the method may include performing a wireless communication task based on receiving the PUSCH communication.
  • Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE.
  • the set of instructions when executed by one or more processors of the UE, may cause the UE to configure, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the set of instructions when executed by one or more processors of the UE, may cause the UE to transmit, to a network node, the PUSCH communication based on the total transmission power.
  • Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network node.
  • the set of instmctions when executed by one or more processors of the network node, may cause the network node to receive, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the set of instructions when executed by one or more processors of the network node, may cause the network node to perform a wireless communication task based on receiving the PUSCH communication.
  • the apparatus may include means for configuring, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the apparatus, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the apparatus may include means for transmitting, to a network node, the PUSCH communication based on the total transmission power.
  • the apparatus may include means for receiving, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the apparatus may include means for performing a wireless communication task based on receiving the PUSCH communication.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network entity, network node, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios.
  • Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements.
  • some aspects may be implemented via integrated chip embodiments or other non-modulecomponent based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, rctail/purchasing devices, medical devices, and/or artificial intelligence devices).
  • Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components.
  • Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects.
  • transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers).
  • RF radio frequency
  • FIG. 1 is a diagram illustrating an example of a wireless network, in accordance with the present disclosure.
  • FIG. 2 is a diagram illustrating an example of a network node in communication with a user equipment (UE) in a wireless network, in accordance with the present disclosure.
  • UE user equipment
  • Fig. 3 is a diagram illustrating an example of forming a virtual port by combining non-coherent and/or partially -coherent antenna ports, in accordance with the present disclosure.
  • Fig. 4 is a diagram illustrating an example of sounding reference signal (SRS) resource sets, in accordance with the present disclosure.
  • SRS sounding reference signal
  • FIGs. 5A and 5B are diagrams illustrating examples of a UE hardware architecture that supports maximum transmission power using virtual ports, in accordance with the present disclosure.
  • Fig. 6 is a diagram illustrating an example of signaling and configuration of maximum transmission power using virtual ports, in accordance with the present disclosure.
  • Fig. 7 is a diagram illustrating an example associated with a full power eight-port uplink transmission mode, in accordance with the present disclosure.
  • Fig. 8 is a diagram illustrating an example process performed, for example, by a UE, in accordance with the present disclosure.
  • Fig. 9 is a diagram illustrating an example process performed, for example, by a network node, in accordance with the present disclosure.
  • Fig. 10 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
  • Fig. 11 is a diagram of an example apparatus for wireless communication, in accordance with the present disclosure.
  • aspects and examples generally include a method, apparatus, network node, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as described or substantially described herein with reference to and as illustrated by the drawings and specification.
  • aspects are described in the present disclosure by illustration to some examples, such aspects may be implemented in many different arrangements and scenarios.
  • Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements.
  • some aspects may be implemented via integrated chip embodiments or other non-module-component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices).
  • Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components.
  • Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects.
  • transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers).
  • RF radio frequency
  • Aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, and/or end-user devices of varying size, shape, and constitution.
  • aspects may be described herein using terminology commonly associated with a 5G or New Radio (NR) radio access technology (RAT), aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).
  • NR New Radio
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples.
  • 5G e.g., NR
  • 4G e.g., Long Term Evolution (LTE) network
  • the wireless network 100 may include one or more network nodes 110 (shown as a network node 110a, a network node 110b, a network node 110c, and a network node 1 lOd), a user equipment (UE) 120 or multiple UEs 120 (shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e), and/or other entities.
  • a network node 110 is a network node that communicates with UEs 120. As shown, a network node 110 may include one or more network nodes.
  • a network node 110 may be an aggregated network node, meaning that the aggregated network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit).
  • RAN radio access network
  • a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed among two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).
  • CUs central units
  • DUs distributed units
  • RUs radio units
  • a network node 110 is or includes a network node that communicates with UEs 120 via a radio access link, such as an RU.
  • a network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU.
  • a network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or a core network via a backhaul link, such as a CU.
  • a network node 110 may include multiple network nodes, such as one or more RUs, one or more CUs, and/or one or more DUs.
  • a network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmission reception point (TRP), a DU, an RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof.
  • the network nodes 110 may be interconnected to one another or to one or more other network nodes 110 in the wireless network 100 through various types of fronthaul, midhaul, and/or backhaul interfaces, such as a direct physical connection, an air interface, or a virtual network, using any suitable transport network.
  • a network node 110 may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a network node 110 and/or a network node subsystem serving this coverage area, depending on the context in which the term is used.
  • a network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having association with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG)).
  • a network node 110 for a macro cell may be referred to as a macro network node.
  • a network node 110 for a pico cell may be referred to as a pico network node.
  • a network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. In the example shown in Fig.
  • the network node 110a may be a macro network node for a macro cell 102a
  • the network node 110b may be a pico network node for a pico cell 102b
  • the network node 110c may be a femto network node for a femto cell 102c.
  • a network node may support one or multiple (e.g., three) cells.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a network node 110 that is mobile (e.g., a mobile network node).
  • the term “base station” or “network node” may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof.
  • base station or “network node” may refer to a CU, a DU, an RU, a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC), or a Non-Real Time (Non-RT) RIC, or a combination thereof.
  • the term “base station” or “network node” may refer to one device configured to perform one or more functions, such as those described herein in connection with the network node 110.
  • the term “base station” or “network node” may refer to a plurality of devices configured to perform the one or more functions. For example, in some distributed systems, each of a quantity of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to duplicate performance of at least a portion of the function, and the term “base station” or “network node” may refer to any one or more of those different devices.
  • the term “base station” or “network node” may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device.
  • the term “base station” or “network node” may refer to one of the base station functions and not another. In this way, a single device may include more than one base station.
  • the wireless network 100 may include one or more relay stations.
  • a relay station is a network node that can receive a transmission of data from an upstream node (e.g., a network node 110 or a UE 120) and send a transmission of the data to a downstream node (e.g., a UE 120 or a network node 110).
  • a relay station may be a UE 120 that can relay transmissions for other UEs 120.
  • the network node 1 lOd e.g., a relay network node
  • the network node 110a e.g., a macro network node
  • a network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, or the like.
  • the wireless network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, or the like. These different types of network nodes 110 may have different transmission power levels, different coverage areas, and/or different impacts on interference in the wireless network 100. For example, macro network nodes may have a high transmission power level (e.g., 5 to 40 watts) whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmission power levels (e.g., 0.1 to 2 watts).
  • macro network nodes may have a high transmission power level (e.g., 5 to 40 watts)
  • pico network nodes, femto network nodes, and relay network nodes may have lower transmission power levels (e.g., 0.1 to 2 watts).
  • a network controller 130 may couple to or communicate with a set of network nodes 110 and may provide coordination and control for these network nodes 110.
  • the network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link.
  • the network nodes 110 may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link.
  • the network controller 130 may be a CU or a core network device, or may include a CU or a core network device.
  • the UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile.
  • a UE 120 may include, for example, an access terminal, a terminal, a mobile station, and/or a subscriber unit.
  • a UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and/or a satellite radio), a vehicular component or sensor,
  • Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • An MTC UE and/or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and/or a location tag, that may communicate with a network node, another device (e.g., a remote device), or some other entity.
  • Some UEs 120 may be considered Intemet-of-Things (loT) devices, and/or may be implemented as NB-IoT (narrowband loT) devices.
  • Some UEs 120 may be considered a Customer Premises Equipment.
  • a UE 120 may be included inside a housing that houses components of the UE 120, such as processor components and/or memory components.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled.
  • any number of wireless networks 100 may be deployed in a given geographic area.
  • Each wireless network 100 may support a particular RAT and may operate on one or more frequencies.
  • a RAT may be referred to as a radio technology, an air interface, or the like.
  • a frequency may be referred to as a carrier, a frequency channel, or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a network node 110 as an intermediary to communicate with one another).
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device -to -device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to- vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and/or a mesh network.
  • P2P peer-to-peer
  • D2D device -to -device
  • V2X vehicle-to-everything
  • V2V vehicle-to-everything
  • V2V vehicle-to- vehicle protocol
  • V2I vehicle-to-infrastructure
  • V2P vehicle-to-pedestrian
  • a UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the network node 110.
  • Devices of the wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, or the like. For example, devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz).
  • FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles.
  • FR2 which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • FR3 7.125 GHz - 24.25 GHz
  • FR3 7.125 GHz - 24.25 GHz
  • Frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics, and thus may effectively extend features of FR1 and/or FR2 into mid-band frequencies.
  • higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz.
  • FR4a or FR4-1 52.6 GHz - 71 GHz
  • FR4 52.6 GHz - 114.25 GHz
  • FR5 114.25 GHz - 300 GHz.
  • Each of these higher frequency bands falls within the EHF band.
  • sub-6 GHz may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies.
  • millimeter wave may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band.
  • frequencies included in these operating bands may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • the UE 120 may include a communication manager 140.
  • the communication manager 140 may configure, based on a precoder and a total power scaling factor, a total transmission power of a physical uplink shared channel (PUS CH) communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a power amplifier (PA) of a set of PAs; and transmit, to a network node, the PUSCH communication based on the total transmission power.
  • the communication manager 140 may perform one or more other operations described herein.
  • the network node 110 may include a communication manager 150.
  • the communication manager 150 may receive, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs; and perform a wireless communication task based on receiving the PUSCH communication. Additionally, or alternatively, the communication manager 150 may perform one or more other operations described herein.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a network node 110 in communication with a UE 120 in a wireless network 100, in accordance with the present disclosure.
  • the network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T> 1).
  • the UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R > 1).
  • the network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and a modem 254.
  • a network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node.
  • Some network nodes 110 may not include radio frequency components that facilitate direct communication with the UE 120, such as one or more CUs, or one or more DUs.
  • a transmit processor 220 may receive data, from a data source 212, intended for the UE 120 (or a set of UEs 120).
  • the transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from that UE 120.
  • MCSs modulation and coding schemes
  • CQIs channel quality indicators
  • the network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS(s) selected for the UE 120 and may provide data symbols for the UE 120.
  • the transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols.
  • the transmit processor 220 may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)).
  • reference signals e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)
  • synchronization signals e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)
  • a transmit (TX) multiple -input multiple -output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), shown as modems 232a through 232t.
  • each output symbol stream may be provided to a modulator component (shown as MOD) of a modem 232.
  • Each modem 232 may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream.
  • Each modem 232 may further use a respective modulator component to process (e.g., convert to analog, amplify, fdter, and/or upconvert) the output sample stream to obtain a downlink signal.
  • the modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), shown as antennas 234a through 234t.
  • a set of antennas 252 may receive the downlink signals from the network node 110 and/or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), shown as modems 254a through 254r.
  • R received signals e.g., R received signals
  • each received signal may be provided to a demodulator component (shown as DEMOD) of a modem 254.
  • DEMOD demodulator component
  • Each modem 254 may use a respective demodulator component to condition (e.g., filter, amplify, downconvert, and/or digitize) a received signal to obtain input samples.
  • Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from the modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RS SI) parameter, a reference signal received quality (RSRQ) parameter, and/or a CQI parameter, among other examples.
  • RSRP reference signal received power
  • RS SI received signal strength indicator
  • RSRQ reference signal received quality
  • CQI CQI parameter
  • the network controller 130 may include a communication unit 294, a controller/processor 290, and a memory 292.
  • the network controller 130 may include, for example, one or more devices in a core network.
  • the network controller 130 may communicate with the network node 110 via the communication unit 294.
  • One or more antennas may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and/or one or more antenna arrays, among other examples.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and/or one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig. 2.
  • Each of the antenna elements may include one or more sub-elements for radiating or receiving radio frequency signals.
  • a single antenna element may include a first sub-element cross-polarized with a second sub-element that can be used to independently transmit cross-polarized signals.
  • the antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern.
  • a spacing between antenna elements may be such that signals with a desired wavelength transmitted separately by the antenna elements may interact or interfere (e.g., to form a desired beam). For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, half wavelength, or other fraction of a wavelength of spacing between neighboring antenna elements to allow for interaction or interference of signals transmitted by the separate antenna elements within that expected range.
  • Beam may refer to a directional transmission such as a wireless signal that is transmitted in a direction of a receiving device.
  • a beam may include a directional signal, a direction associated with a signal, a set of directional resources associated with a signal (e.g., angle of arrival, horizontal direction, vertical direction), and/or a set of parameters that indicate one or more aspects of a directional signal, a direction associated with a signal, and/or a set of directional resources associated with a signal.
  • antenna elements and/or sub-elements may be used to generate beams.
  • antenna elements may be individually selected or deselected for transmission of a signal (or signals) by controlling an amplitude of one or more corresponding amplifiers.
  • Beamforming includes generation of a beam using multiple signals on different antenna elements, where one or more, or all, of the multiple signals are shifted in phase relative to each other.
  • the formed beam may carry physical or higher layer reference signals or information. As each signal of the multiple signals is radiated from a respective antenna element, the radiated signals interact, interfere (constructive and destructive interference), and amplify each other to form a resulting beam.
  • the shape (such as the amplitude, width, and/or presence of side lobes) and the direction (such as an angle of the beam relative to a surface of an antenna array) can be dynamically controlled by modifying the phase shifts or phase offsets of the multiple signals relative to each other.
  • Beamforming may be used for communications between a UE and a network node, such as for millimeter wave communications and/or the like.
  • the network node may provide the UE with a configuration of transmission configuration indicator (TCI) states that respectively indicate beams that may be used by the UE, such as for receiving a physical downlink shared channel (PDSCH).
  • TCI transmission configuration indicator
  • PDSCH physical downlink shared channel
  • the network node may indicate an activated TCI state to the UE, which the UE may use to select a beam for receiving the PDSCH.
  • a beam indication may be, or include, a TCI state information element, a beam identifier (ID), spatial relation information, a TCI state ID, a closed loop index, a panel ID, a TRP ID, and/or a sounding reference signal (SRS) set ID, among other examples.
  • a TCI state information element (referred to as a TCI state herein) may indicate information associated with a beam such as a downlink beam.
  • the TCI state information element may indicate a TCI state identification (e.g., a tci-StatelD), a quasi-co-location (QCL) type (e.g., a qcl-Typel, qcl-Type2, qcl-TypeA, qcl-TypeB, qcl-TypeC, qcl-TypeD, and/or the like), a cell identification (e.g., a ServCelllndex), a bandwidth part identification (bwp-Id), a reference signal identification such as a CSI-RS (e.g., wNZP-CSI-RS-Resourceld, im SSB-Index. and/or the like), and/or the like.
  • Spatial relation information may similarly indicate information associated with an uplink beam.
  • the beam indication may be a joint or separate downlink (DL)/uplink (UL) beam indication in a unified TCI framework.
  • the network may support layer 1 (L 1)- based beam indication using at least UE-specific (unicast) downlink control information (DCI) to indicate joint or separate DL/UL beam indications from active TCI states.
  • DCI downlink control information
  • existing DCI formats 1 1 and/or 1 2 may be reused for beam indication.
  • the network may include a support mechanism for a UE to acknowledge successful decoding of a beam indication. For example, the acknowledgment/negative acknowledgment (ACK/NACK) of the PDSCH scheduled by the DCI carrying the beam indication may be also used as an ACK for the DCI.
  • ACK/NACK acknowledgment/negative acknowledgment
  • Beam indications may be provided for carrier aggregation (CA) scenarios.
  • the network may support common TCI state ID update and activation to provide common QCL and/or common UL transmission spatial filter or filters across a set of configured component carriers (CCs).
  • This type of beam indication may apply to intra-band CA, as well as to joint DL/UL and separate DL/UL beam indications.
  • the common TCI state ID may imply that one reference signal (RS) determined according to the TCI state(s) indicated by a common TCI state ID is used to provide QCL Type-D indication and to determine UL transmission spatial filters across the set of configured CCs.
  • RS reference signal
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from the controller/processor 280.
  • the transmit processor 264 may generate reference symbols for one or more reference signals.
  • the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modems 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110.
  • the modem 254 of the UE 120 may include a modulator and a demodulator.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 252, the modem(s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and/or the TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., the controller/processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 7-11).
  • the uplink signals from UE 120 and/or other UEs may be received by the antennas 234, processed by the modem 232 (e.g., a demodulator component, shown as DEMOD, of the modem 232), detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120.
  • the receive processor 238 may provide the decoded data to a data sink 239 and provide the decoded control information to the controller/processor 240.
  • the network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244.
  • the network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and/or uplink communications.
  • the modem 232 of the network node 110 may include a modulator and a demodulator.
  • the network node 110 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 234, the modem(s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and/or the TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., the controller/processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 7-11).
  • the controller/processor 280 may be a component of a processing system.
  • a processing system may generally be a system or a series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the UE 120).
  • a processing system of the UE 120 may be a system that includes the various other components or subcomponents of the UE 120.
  • the processing system of the UE 120 may interface with one or more other components of the UE 120, may process information received from one or more other components (such as inputs or signals), or may output information to one or more other components.
  • a chip or modem of the UE 120 may include a processing system, a first interface to receive or obtain information, and a second interface to output, transmit, or provide information.
  • the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the UE 120 may receive information or signal inputs, and the information may be passed to the processing system.
  • the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the UE 120 may transmit information output from the chip or modem.
  • the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit, or provide information.
  • the controller/processor 240 may be a component of a processing system.
  • a processing system may generally be a system or a series of machines or components that receives inputs and processes the inputs to produce a set of outputs (which may be passed to other systems or components of, for example, the network node 110).
  • a processing system of the network node 110 may be a system that includes the various other components or subcomponents of the network node 110.
  • the processing system of the network node 110 may interface with one or more other components of the network node 110, may process information received from one or more other components (such as inputs or signals), or may output information to one or more other components.
  • a chip or modem of the network node 110 may include a processing system, a first interface to receive or obtain information, and a second interface to output, transmit, or provide information.
  • the first interface may be an interface between the processing system of the chip or modem and a receiver, such that the network node 110 may receive information or signal inputs, and the information may be passed to the processing system.
  • the second interface may be an interface between the processing system of the chip or modem and a transmitter, such that the network node 110 may transmit information output from the chip or modem.
  • the second interface also may obtain or receive information or signal inputs, and the first interface also may output, transmit, or provide information.
  • the controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform one or more techniques associated with a full power eight-power uplink transmission mode, as described in more detail elsewhere herein.
  • the controller/processor 240 of the network node 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform or direct operations of, for example, process 800 of Fig. 8, process 900 of Fig. 9, and/or other processes as described herein.
  • the memory 242 and the memory 282 may store data and program codes for the network node 110 and the UE 120, respectively.
  • the memory 242 and/or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the network node 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the network node 110 to perform or direct operations of, for example, process 800 of Fig. 8, process 900 of Fig. 9, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.
  • a UE (e.g., the UE 120) includes means for configuring, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs; and/or means for transmitting, to a network node, the PUSCH communication based on the total transmission power.
  • the means for the UE to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.
  • a network node (e.g., the network node 110) includes means for receiving, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs; and/or means for performing a wireless communication task based on receiving the PUSCH communication.
  • the means for the network node to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
  • an individual processor may perform all of the functions described as being performed by the one or more processors.
  • one or more processors may collectively perform a set of functions. For example, a first set of (one or more) processors of the one or more processors may perform a first function described as being performed by the one or more processors, and a second set of (one or more) processors of the one or more processors may perform a second function described as being performed by the one or more processors.
  • the first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. Reference to “one or more processors” should be understood to refer to any one or more of the processors described in connection with Fig.
  • references to “one or more memories” should be understood to refer to any one or more memories of a corresponding device, such as the memory described in connection with Fig.
  • Fig. 2 functions described as being performed by one or more memories can be performed by the same subset of the one or more memories or different subsets of the one or more memories.
  • blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
  • the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of the controller/processor 280.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Deployment of communication systems may be arranged in multiple manners with various components or constituent parts.
  • a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station, or a network equipment may be implemented in an aggregated or disaggregated architecture.
  • a base station such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP, or a cell, among other examples
  • a base station may be implemented as an aggregated base station (also known as a standalone base station or a monolithic base station) or a disaggregated base station.
  • Network entity or “network node” may refer to a disaggregated base station, or to one or more units of a disaggregated base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).
  • An aggregated base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit).
  • a disaggregated base station e.g., a disaggregated network node
  • a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed throughout one or multiple other network nodes.
  • the DUs may be implemented to communicate with one or more RUs.
  • Each of the CU, DU, and RU also can be implemented as virtual units, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among other examples.
  • VCU virtual central unit
  • VDU virtual distributed unit
  • VRU virtual radio unit
  • Base station-type operation or network design may consider aggregation characteristics of base station functionality.
  • disaggregated base stations may be utilized in an IAB network, an open radio access network (O-RAN (such as the network configuration sponsored by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of communication systems by separating base station functionality into one or more units that can be individually deployed.
  • a disaggregated base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented for at least one unit virtually, which can enable flexibility in network design.
  • the various units of the disaggregated base station can be configured for wired or wireless communication with at least one other unit of the disaggregated base station.
  • FIG. 3 is a diagram illustrating an example 300 of forming a virtual port by combining non-coherent and/or partially -coherent antenna ports, in accordance with the present disclosure.
  • a multi-antenna UE 120 and/or a set of antenna ports of the UE 120 may be classified into one of three groups depending on coherence of the antenna ports of the UE 120.
  • a set of antenna ports e.g., two antenna ports
  • SRS sounding reference signal
  • PUSCH physical uplink shared channel
  • the SRS can be used (e.g., by the UE 120 and/or a network node 110) to determine an uplink precoder for precoding the PUSCH transmission, since the relative phase of the antenna ports will be the same for the SRS transmission and the PUSCH transmission.
  • precoding can span across the set of coherent antenna ports (sometimes referred to herein as coherent ports). If a set of antenna ports is not coherent (i.e., non-coherent), then such an uplink precoder determination becomes difficult, because the relative phase of the antenna ports will change from the SRS transmission to the PUSCH transmission.
  • a set of antenna ports is considered non-coherent if the relative phase among the set of antenna ports is different for the SRS transmission and the PUSCH transmission.
  • precoding does not span across the set of non-coherent antenna ports (sometimes referred to as non-coherent ports).
  • a set of antenna ports is considered partially -coherent if a first subset of the set of antenna ports is coherent with one another and a second subset of the set of antenna ports is coherent with one another, but the first subset of antenna ports and the second subset of antenna ports are not coherent with one another.
  • common precoding may be used within the subsets of coherent ports, but not across the subsets of non-coherent ports.
  • a virtual antenna port sometimes referred to herein as a virtual port
  • antenna ports that lack coherence e.g., so that common precoding can be used on the virtual port and applied to the non-coherent antenna ports.
  • a set of non-coherent antenna ports can be combined into a single virtual port using precoding (e.g., uplink precoding) and cyclic delay diversity.
  • the precoder may be determined by the UE 120 and/or signaled by a network node 110.
  • Cyclic delay diversity may refer to a technique where a delay (e.g., a cyclic delay) is introduced on one of the non-coherent ports and not on the other non-coherent port.
  • the delay may be measured in samples (e.g., 5 samples, 10 samples, and/or the like), fractions of samples, and/or the like.
  • a first non-coherent port may transmit a first stream of samples
  • the second noncoherent port may transmit a second stream of samples (e.g., which may be the same stream) with a slight cyclic delay (e.g., a delay of 5 samples, 10 samples, and/or the like).
  • a slight cyclic delay e.g., a delay of 5 samples, 10 samples, and/or the like.
  • the first noncoherent port may transmit the 16 samples with a first sample transmitted first (e.g., [si, s2, s3, s4, ...
  • the second non-coherent port may transmit the 16 samples with the first sample transmitted sixth (e.g., with a delay of five samples) (e.g., [sl2, sl3, sl4, sl5, sl6, si, s2, s3, ..., sll]).
  • a set of partially - coherent antenna ports can be combined into a single virtual port using precoding (e.g., uplink precoding) and cyclic delay diversity, in a similar manner as described above.
  • precoding e.g., uplink precoding
  • cyclic delay diversity e.g., cyclic delay diversity
  • a first subset of ports may be coherent with one another, and a second subset of ports may be coherent with one another, but the two subsets may not be coherent with one another.
  • precoding may be applied to the individual subsets to generate a first virtual port and a second virtual port that are not coherent with one another.
  • CDD may be applied to these two virtual ports (e.g., by transmitting communications from the virtual ports using CDD), thereby forming a single virtual port from the partially -coherent ports (e.g., using precoding and CDD).
  • the UE 120 may be required to split a transmission power equally across all antenna ports used for a PUSCH transmission using a power scaling factor.
  • the power scaling factor may be equal to the number of antenna ports with non-zero PUSCH transmission power divided by the maximum number of SRS ports supported by the UE 120 in one SRS resource. In this case, the UE 120 may not be able to transmit with maximum transmission power because the UE 120 is required to split the transmission power equally across all antenna ports on which the UE is configured to transmit a PUSCH communication.
  • the transmission power of the transmission on the single port (port 0) is scaled by a factor of 1/2 (one half).
  • a network node 110 may need to instruct a UE 120 to transmit at maximum power, such as when the UE 120 is located near a cell edge or otherwise has poor link quality with the network node 110.
  • different UEs 120 may have different capabilities regarding virtual port synthesis and which virtual ports of the UE 120 are capable of supporting a maximum transmission power.
  • the UE 120 may or may not be capable of synthesizing a virtual port that supports a maximum transmission power (e.g., of a power class of the UE 120) and/or may only be capable of supporting a maximum transmission power for a virtual port that is a combination of a specific set of actual antenna ports of the UE 120, depending on the hardware components of the UE 120, a number of transmission antennas of the UE 120, a number of transmission chains of the UE 120, a maximum transmission power supported by different power amplifiers and/or different combinations of power amplifiers of the UE 120, and/or the like.
  • a maximum transmission power e.g., of a power class of the UE 120
  • a maximum transmission power e.g., of a power class of the UE 120
  • a network node 110 In order for a network node 110 to instmct a UE 120 regarding a precoder (e.g., corresponding to a transmitted precoding matrix indicator (TPMI)) to be used to transmit at maximum power, the network node 110 needs to know which precoder(s) of the UE 120 are capable of supporting transmissions at the maximum power. However, the network node 110 may not have information regarding such capabilities of the UE 120, which may result in an instruction to transmit at maximum power using a precoder with which the UE 120 is not capable of transmitting at the maximum power.
  • TPMI transmitted precoding matrix indicator
  • Some techniques and apparatuses described herein permit a UE 120 to signal capabilities regarding a total power scaling factor of the UE 120, precoders (e.g., TPMIs) that support a maximum transmission power for the UE 120, and/or the like.
  • the network node 110 may configure and/or instruct the UE 120 to transmit at maximum transmission power using power scaling factors and/or precoders that supports the maximum transmission power.
  • Fig. 3 shows pairs of antenna ports in sets and subsets
  • a different number of antenna ports may be included in a set or a subset.
  • a set of antenna ports or subset of antenna ports may include three antenna ports, four antenna ports, and/or the like.
  • Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
  • Fig. 4 is a diagram illustrating an example 400 of sounding reference signal (SRS) resource sets, in accordance with various aspects of the present disclosure.
  • SRS sounding reference signal
  • a network node 110 may configure a UE 120 with one or more SRS resource sets to allocate resources for SRS transmissions by the UE 120.
  • a configuration for SRS resource sets may be indicated in a radio resource control (RRC) message (e.g., an RRC configuration message, an RRC reconfiguration message, and/or the like).
  • RRC radio resource control
  • an SRS resource set may include one or more resources (e.g., shown as SRS resources), which may include time resources and/or frequency resources (e.g., a slot, a symbol, a resource block, a periodicity for the time resources, and/or the like).
  • an SRS resource may include one or more antenna ports on which an SRS is to be transmitted (e.g., in a time-frequency resource).
  • a configuration for an SRS resource set may indicate one or more time-frequency resources in which an SRS is to be transmitted, and may indicate one or more antenna ports on which the SRS is to be transmitted in those time-frequency resources.
  • the configuration for an SRS resource set may indicate a use case (e.g., in an SRS-SetUse information element) for the SRS resource set.
  • an SRS resource set may have a use case of antenna switching, codebook, non-codebook, beam management, and/or the like.
  • An antenna switching SRS resource set may be used to indicate downlink channel state information (CSI) with reciprocity between an uplink and downlink channel. For example, when there is reciprocity between an uplink channel and a downlink channel, a network node 110 may use an antenna switching SRS (e.g., an SRS transmitted using a resource of an antenna switching SRS resource set) to acquire downlink CSI (e.g., to determine a downlink precoder to be used to communicate with the UE 120).
  • an antenna switching SRS e.g., an SRS transmitted using a resource of an antenna switching SRS resource set
  • downlink CSI e.g., to determine a downlink precoder to be used to communicate with the UE 120.
  • a codebook SRS resource set may be used to indicate uplink CSI when a network node 110 indicates an uplink precoder to the UE 120.
  • the network node 110 may use a codebook SRS (e.g., an SRS transmitted using a resource of a codebook SRS resource set) to acquire uplink CSI (e.g., to determine an uplink precoder to be indicated to the UE 120 and used by the UE 120 to communicate with the network node 110).
  • a codebook SRS e.g., an SRS transmitted using a resource of a codebook SRS resource set
  • uplink CSI e.g., to determine an uplink precoder to be indicated to the UE 120 and used by the UE 120 to communicate with the network node 110.
  • virtual ports e.g., a combination of two or more antenna ports with a maximum transmission power may be supported at least for a codebook SRS.
  • a non-codebook SRS resource set may be used to indicate uplink CSI when the UE 120 selects an uplink precoder (e.g., instead of the network node 110 indicated an uplink precoder to be used by the UE 120.
  • the network node 110 may use a non-codebook SRS (e.g., an SRS transmitted using a resource of a non-codebook SRS resource set) to acquire uplink CSI.
  • the non-codebook SRS may be precoded using a precoder selected by the UE 120 (e.g., which may be indicated to the network node 110).
  • a beam management SRS resource set may be used for indicating CSI for millimeter wave communications.
  • different SRS resource sets indicated to the UE 120 may overlap (e.g., in time, in frequency, and/or the like, such as in the same slot).
  • a first SRS resource set (e.g., shown as SRS Resource Set 1) is shown as having an antenna switching use case.
  • this example antenna switching SRS resource set includes a first SRS resource (shown as SRS Resource A) and a second SRS resource (shown as SRS Resource B).
  • antenna switching SRS may be transmitted in SRS Resource A (e.g., a first time-frequency resource) using antenna port 0 and antenna port 1, and may be transmitted in SRS Resource B (e.g., a second time-frequency resource) using antenna port 2 and antenna port 3.
  • SRS Resource A e.g., a first time-frequency resource
  • SRS Resource B e.g., a second time-frequency resource
  • a second SRS resource set (e.g., shown as SRS Resource Set 2) may be a codebook use case.
  • this example codebook SRS resource set includes only the first SRS resource (shown as SRS Resource A).
  • codebook SRS may be transmitted in SRS Resource A (e.g., the first time-frequency resource) using antenna port 0 and antenna port 1.
  • the UE 120 may not transmit code book SRS in SRS Resource B (e.g., the second time-frequency resource) using antenna port 2 and antenna port 3.
  • the UE 120 when a UE 120 is configured with multiple SRS ports for a MIMO mode, the UE 120 may be required to split a transmission power equally across all antenna ports used for a PUSCH transmission using a power scaling factor. In this case, the UE 120 may not be able to transmit with maximum transmission power using a virtual port that is a combination of multiple non-coherent ports and/or multiple partially -coherent ports, because the UE 120 is required to split the transmission power equally across all antenna ports on which the UE transmits a PUSCH communication with non-zero transmission power.
  • Some techniques and apparatuses described herein permit the UE 120 to transmit at a total transmission power comprising a summation of a plurality of power scaling factors associated with a plurality of PAs (e.g., configured by an SRS configuration).
  • Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.
  • FIGs. 5A and 5B are diagrams illustrating examples 500 of a UE hardware architecture that supports maximum transmission power using virtual ports, in accordance with various aspects of the present disclosure.
  • a capability of a UE 120 to use virtual ports to support a maximum transmission power for a power class of the UE 120 may depend on a hardware architecture of the UE 120. Specifically, this capability of the UE 120 may depend on a number of transmission antennas (or transmission chains) of the UE 120, a number of power amplifiers of the UE 120, a transmission power capable of being supplied by each of those power amplifiers, and/or the like. As an example, the UE 120 of Fig.
  • A is shown as having a first power amplifier (PAI) that supports a maximum power of 20 decibel-milliwatts (dBm), a second power amplifier (PA2) that supports a maximum power of 20 dBm, a third power amplifier (PA3) that supports a maximum power of 17 dBm, and a fourth power amplifier (PA4) that supports a maximum power of 17 dBm.
  • PAI first power amplifier
  • PA2 second power amplifier
  • PA3 third power amplifier
  • PA3 third power amplifier
  • PA4 fourth power amplifier
  • a UE 120 described herein may have a hardware architecture where a subset (e.g., fewer than all) of the power amplifiers of the UE 120 individually support a maximum transmission power of the UE 120 (e.g., without combining of antenna ports). For example, if the UE 120 is power class 3 with a maximum transmission power of 23 dBm, then fewer than all of the power amplifiers of the UE 120 may individually support 23 dBm transmissions. In example 500, none of the power amplifiers of the UE 120 individually (e.g., without combining of antenna ports) support a maximum transmission power of 23 dBm.
  • one of the four power amplifiers may individually support the maximum transmission power of 23 dBm, two of the four power amplifiers may individually support the maximum transmission power of 23 dBm, or three of the four power amplifiers may individually support the maximum transmission power of 23 dBm.
  • none of the two power amplifiers may individually support the maximum transmission power of 23 dBm, or one of the two power amplifiers may individually support the maximum transmission power of 23 dBm.
  • some UEs 120 may not be capable of synthesizing a virtual port that supports a maximum transmission power for a power class of the UE 120, different UEs 120 may be capable of synthesizing different numbers of virtual ports that support a maximum transmission power, and different UEs 120 may be capable of synthesizing virtual ports that support a maximum transmission power using different precoders (e.g., different combinations of antennas and/or power amplifiers).
  • different precoders e.g., different combinations of antennas and/or power amplifiers.
  • a network node 110 in order for a network node 110 to instruct a UE 120 regarding a precoder (e.g., a TPMI) to be used to transmit at maximum power, the network node 110 needs to know which precoder(s) of the UE 120 are capable of supporting transmissions at the maximum power. However, the network node 110 may not have information regarding such capabilities of the UE 120, which may result in an instruction to transmit at maximum power using a precoder with which the UE 120 is not capable of transmitting at the maximum power.
  • a precoder e.g., a TPMI
  • Some techniques and apparatuses described herein permit a UE 120 to signal capabilities regarding virtual ports of the UE 120 that support a maximum transmission power, precoders (e.g., TPMIs) that support a maximum transmission power for the UE 120, and/or the like.
  • the network node 110 may configure and/or instruct the UE 120 to transmit at maximum transmission power using a virtual port and/or precoder that supports the maximum transmission power.
  • a 4 Tx UE 120 may have four power amplifiers (and a corresponding four transmission antennas and four transmission chains), but may behave like a 2 Tx UE 120 (e.g., a UE 120 having two power amplifiers and a corresponding two transmission antennas and two transmission chains).
  • a 4 Tx UE 120 may synthesize a first virtual port using PAI and PA2 (shown as virtual port A), and may synthesize a second virtual port using PA3 and PA 4 (shown as virtual port B).
  • the 4 Tx UE 120 may transmit using the two virtual ports, and thus may behave like a 2 Tx UE.
  • a 4 Tx UE 120 may deactivate or disable two power amplifiers, two transmission chains, and/or two transmission antennas (e.g., for power saving). In this case, the 4 Tx UE 120 may transmit using the two activated power amplifiers, transmission chains, and/or transmission antennas, and thus may behave like a 2 Tx UE. As shown by reference number 515, in some aspects, the 4 Tx UE 120 may be capable of synthesizing a virtual port (shown as virtual port C) using the two activated power amplifiers, transmission chains, and/or transmission antennas.
  • a virtual port shown as virtual port C
  • Figs. 5A and 5B are provided as examples. Other examples may differ from what is described with regard to Figs. 5A and 5B.
  • Fig. 6 is a diagram illustrating an example 600 of signaling and configuration of maximum transmission power using virtual ports, in accordance with various aspects of the present disclosure. As shown in Fig. 6, a UE 120 and a network node 110 may communicate with one another.
  • the UE 120 may transmit, to the network node 110, an indication of whether the UE 120 is capable of using a virtual port to transmit uplink communications using a maximum transmission power.
  • the maximum transmission power may be defined by a power class of the UE 120.
  • the maximum transmission power may be 23 dBm for a UE 120 of power class 3.
  • a virtual port may be a combination of two or more non-coherent or partially -coherent antenna ports of the UE 120.
  • the two or more non-coherent or partially -coherent antenna ports may be combined using precoding and/or cyclic delay diversity to synthesize the virtual port.
  • a virtual port may be a combination of one or more antenna ports.
  • a virtual port may be a combination of multiple (e.g., two or more antenna ports) or a single actual antenna port powered by a power amplifier capable of transmitting at the maximum transmission power without being combined with another antenna port.
  • a UE 120 that is capable of using a virtual port to transmit uplink communications using a maximum transmission power may be referred to as a Mode 2 UE, while “Mode 1 UE” may refer to a UE 120 that is not capable of synthesizing a virtual port, but that is capable of supporting the maximum transmission power by using non-coherent ports and/or partially - coherent ports to use fully -coherent precoders using cyclic delay diversity.
  • a Mode 1 UE may support the maximum transmission power using precoders that span across non-coherent antenna ports.
  • a Mode 1 UE may support the maximum transmission power using precoding and cyclic delay diversity.
  • a power scaling factor is removed or set to 1. In this way, any single Tx chain and/or PA can deliver full power.
  • Mode 0 can be a default mode.
  • the UE 120 may transmit, to the network node 110, an indication of a number of virtual ports that the UE 120 is capable of using to transmit uplink communications using the maximum transmission power. For example, the UE 120 may indicate that the UE 120 is capable of synthesizing only one (e.g., a single) virtual port that supports the maximum transmission power. As another example, the UE 120 may indicate that the UE 120 is capable of synthesizing multiple virtual ports that support the maximum transmission power.
  • the UE 120 may use a single message, a single set of bits, and/or a single field of a message to indicate whether the UE 120 is capable of using a virtual port to transmit uplink communications using a maximum transmission power and to indicate a number of virtual ports that the UE 120 is capable of using to transmit uplink communications using the maximum transmission power.
  • the UE 120 may transmit a one bit indication (e.g., a single bit).
  • a first value of the bit (e.g., 0) may indicate that the UE 120 is not capable of using a virtual port to transmit uplink communications using the maximum transmission power.
  • a second value of the bit (e.g., 1) may indicate that the UE 120 is capable of using a single virtual port to transmit uplink communications using the maximum transmission power.
  • a UE 120 with four transmission antennas (and/or four transmission chains or power amplifiers), referred to as a 4 Tx UE may use a one bit indication when the 4 Tx UE behaves like a 2 Tx UE (e.g., as described above in connection with Fig. 5B).
  • a first value of the bit e.g., 0
  • a second value of the bit e.g., 1
  • the second value of the bit may indicate that the 4 Tx UE is capable of using either a single one of the two virtual ports or both of the virtual ports to transmit uplink communications using the maximum transmission power.
  • the second value of the bit may indicate that the 4 Tx UE is capable of using a single virtual port (e.g., virtual port C of Fig. 5B), synthesized from the two activated power amplifiers), to transmit uplink communications using the maximum transmission power
  • a 4 Tx UE may use a multi-bit indication (e.g., two bits), with a first value of the bit indicating that the 4 Tx UE is not capable of using a virtual port to transmit uplink communications using the maximum transmission power, a second value of the bit indicating that the 4 Tx UE is capable of using only a first virtual port (e.g., virtual port A or virtual port C of Fig. 5B) to transmit uplink communications using the maximum transmission power, a third value of the bit indicating that the 4 Tx UE is capable of using only a second virtual port (e.g., virtual port B of Fig. 5B) to transmit uplink communications using the maximum transmission power, and a fourth value of the bit indicating that the 4 Tx UE is capable of using both the first virtual port and the second virtual port (separately) to transmit uplink communications using the maximum transmission power.
  • a multi-bit indication e.g., two bits
  • an N Tx UE may indicate, in a UE capability report, that the N Tx UE behaves like a K Tx UE (e.g., a 2 Tx UE), where K ⁇ N. Additionally, or alternatively, an N Tx UE may indicate, in a UE capability report, whether the A Tx UE behaves like a K Tx UE due to synthesis of multiple virtual ports, whether the A Tx UE behaves like a K Tx UE due to deactivation of a subset of power amplifiers of the A Tx UE, and/or the like.
  • the UE 120 may transmit a two bit indication.
  • a first value of the indication (e.g., 00) may indicate that the UE 120 is not capable of using a virtual port to transmit uplink communications using the maximum transmission power.
  • a second value of the indication may indicate that the UE 120 is capable of using at least one virtual port (e.g., one or more virtual ports) to transmit uplink communications using the maximum transmission power, such as when the UE 120 is a power class 3 UE with four power amplifiers that are each capable of a maximum of 17 dBm transmission (e.g., where all four 17 dBm power amplifiers are combined to generate 23 dBm of power).
  • a third value of the indication may indicate that the UE 120 is capable of using two virtual ports to transmit simultaneous uplink communications (e.g., using different MIMO layers) using the maximum transmission power on each of the two virtual ports, such as when the UE 120 is a power class 3 UE with four power amplifiers that are each capable of a maximum of 20 dBm transmission (e.g., where a first 20 dBm power amplifier and a second 20 dBm power amplifier are combined to generate 23 dBm of power, and a third 20 dBm power amplifier and a fourth 20 dBm power amplifier are combined to generate 23 dBm of power).
  • a value of the indication may indicate an exact number of virtual ports that the UE 120 is capable of using to transmit uplink communications using the maximum transmission power (e.g., one virtual port, two virtual ports, three virtual ports, and so on), such as by using a value of 11.
  • a 4 Tx UE behaving like a 2 Tx UE due to synthesis of two virtual ports may indicate a capability to transmit using the maximum transmission power for each of the two virtual ports.
  • the 4 Tx UE may indicate that none of the two virtual ports supports the maximum transmission power, that only one of the two virtual ports supports the maximum transmission power, that only a first virtual port of the two virtual ports supports the maximum transmission power, that only a second virtual port of the two virtual ports supports the maximum transmission power, that both of the two virtual ports (separately or independently) support the maximum transmission power, and/or the like.
  • a 4 Tx UE behaving like a 2 Tx due to synthesis of two virtual ports may indicate whether the two virtual ports are coherent with one another or non-coherent with one another (e.g., using a single bit indication).
  • a 4 Tx UE behaving like a 2 Tx UE may indicate a number of activated power amplifiers (or transmission chains or transmission antennas), a number of deactivated power amplifiers (or transmission chains or transmission antennas), a number of virtual ports that the 4 Tx UE is capable of synthesizing, a number of virtual ports that the 4 Tx UE is capable of using to transmission using the maximum transmission power, one or more virtual port identifiers that indicate which of the virtual ports the 4 Tx UE is capable of using to transmit using the maximum transmission power, whether a pair or set of virtual ports are coherent (or non-coherent) with one another, and/or the like.
  • K is less than A.
  • the UE 120 may transmit a single bit to indicate whether the UE 120 supports full power (e.g., the maximum transmission power for the power class of the UE 120) by setting a power scaling factor in power control to one for all precoders. This may indicate, for example, whether all transmission chains of the UE 120 include a respective power amplifier that supports the maximum transmission power.
  • a UE 120 that has a fully -rated power amplifier (e.g., a power amplifier that supports a maximum transmission power) included in each transmission chain of the UE 120 may be referred to as a capability 1 UE.
  • the UE 120 need not signal any additional information regarding full power capability of the UE 120. For example, if the UE 120 is a capability 1 UE, then the UE 120 need not signal any information in the two bits described below for indicating support for mode 1 or mode 2, need not signal any information regarding TPMIs that support the maximum transmission power (e.g., as described below in connection with Figs. 7-10), and/or the like. [0118] As further shown, the UE 120 may transmit two bits that indicate whether the UE 120 supports only Mode 1 and not Mode 2, only Mode 2 and not Mode 1, both Mode 1 and Mode 2, or neither Mode 1 nor Mode 2. Details regarding Mode 1 and Mode 2 are described above.
  • Mode 1 capability may refer to a capability to support the maximum transmission power using precoders that span across non-coherent antenna ports.
  • “Mode 2 capability” may refer to a capability to support the maximum transmission power using a virtual port.
  • the UE 120 may use these two bits if the UE 120 does not have any transmission chains with a fully -rated power amplifier (sometimes referred to as a capability 2 UE) and/or if fewer than all (e.g., a subset of) the transmission chains of the UE 120 have a fully -rated power amplifier (sometimes referred to as a capability 3 UE).
  • the UE 120 need not signal anything in these two bits if the UE 120 is a capability 1 UE, as described above.
  • the UE 120 may transmit, to the network node 110, a bitmap that indicates a set of TPMIs that support a maximum transmission power for uplink communications, as described in more detail below in connection with Figs. 7-10. If the UE 120 does not support Mode 2, then the UE 120 may refrain from transmitting the bitmap (e.g., because the UE 120 does not support virtual ports).
  • the UE 120 may transmit the information described above (e.g., the single bit and/or the two bits) per band for a band-band combination (e.g., band in a band combination) supported by the UE 120 (e.g., per band for each band-band combination supported by the UE 120).
  • a band-band combination e.g., band in a band combination
  • the UE 120 may have different capabilities for different bands in each bands-band combination.
  • the UE 120 may transmit the information described above for every band in each band-band combination supported by the UE 120.
  • the UE 120 may transmit the indication in a field of a capability report (e.g., a UE capability report).
  • a capability report e.g., a UE capability report
  • the UE 120 may transmit the capability report with an empty or null value in this field, or with this field excluded, when each transmission chain of the UE 120 includes a power amplifier capable of supporting the maximum transmission power (e.g., and thus virtual ports are not necessary to achieve the maximum transmission power).
  • the network node 110 may transmit, to the UE 120, an SRS configuration based at least in part on the indication of whether the UE 120 is capable of using a virtual port to transmit uplink communications using a maximum transmission power. For example, the network node 110 may determine the SRS configuration based at least in part on the indication of whether the UE 120 is capable of using a virtual port to transmit uplink communications using a maximum transmission power, and may transmit the determined SRS configuration to the UE 120. Additionally, or alternatively, the network node 110 may determine the SRS configuration based at least in part on an indication, from the UE 120, of a number of virtual ports that the UE 120 is capable of using to transmit uplink communications using the maximum transmission power.
  • the network node 110 may determine a number of SRS resources to be configured for an SRS resource set for the UE 120 based at least in part on the indication. Additionally, or alternatively, the network node 110 may determine a type (e.g., a use case and/or the like) of SRS resources to be configured for an SRS resource set for the UE 120 based at least in part on the indication. The network node 110 may indicate the determined number and/or the determined type of SRS resources configured for an SRS resource set in the SRS configuration transmitted to the UE 120.
  • a type e.g., a use case and/or the like
  • a network node 110 may normally configure a number of ports, for an SRS resource, that is the same as the number of antenna ports of the UE 120 (e.g., at least for an SRS resource having a codebook use case). For example, for a UE 120 with four transmission antennas, the network node 110 assigns an SRS resource (e.g., a first SRS resource) that includes four antenna ports. However, if the UE 120 is capable of synthesizing one or more virtual ports, then the network node 110 may configure an additional SRS resource (e.g., a second SRS resource) for the one or more virtual ports, shown as SRS resource 2 and SRS resource 3 in Fig. 6.
  • an additional SRS resource e.g., a second SRS resource
  • the network node 110 may configure the UE 120 with an additional SRS resource with a single port (e.g., for the single virtual port).
  • the network node 110 may configure the UE 120 with an additional SRS resource that includes either one port, shown by SRS resource 2 and SRS resource 3 in Fig. 6 (e.g., where the UE 120 selects one of the two virtual ports for sounding using the SRS resource, to conserve SRS overhead), or two ports, shown by SRS resource 1 in Fig. 6 (e.g., one for each virtual port, which allows the UE 120 to sound both virtual ports).
  • a UE may be configured with eight transmission ports (e.g., eight transmission antennas (and/or eight transmission chains and/or power amplifiers), and may be referred to as an 8 Tx UE.
  • mode 1 and mode 2 can be used for 8 Tx PUSCH, for example.
  • the UE can be configured with a “big + little” PA configuration.
  • the UE can have one 23dBm PA (“PAI”), one 20dBm PA (“PA2”), two 17 dBm PAs (“PA3” and “PA4”), and four 14dBm PAs (“PA5,” “PA6,” “PA7,” and “PA8”).
  • Rank 1 PUSCH can be transmitted using PAI
  • Rank 2 PUSCH can be transmitted using PAI and PA2
  • Rank 4 PUSCH can be transmitted using PAI - PA4
  • Rank 8 PUSCH can be transmitted using PAI - PA8.
  • equipping 8 PAs to reach full power can result in a high cost of manufacturing and unnecessarily large power consumption by the UE.
  • a Mode 1 or Mode 2 which allow power scaling factors of 1/8 times the number of activated Tx ports, can result in inefficient use of PA power.
  • Some aspects of the techniques and apparatuses described herein may facilitate implementation of an 8 Tx UE having a full power mode (e.g., a “Mode OA”) in which different PA powers may be applied to different PAs.
  • a total power scaling factor for determining a total transmission power associated with a PUSCH communication may include a summation of a plurality of power scaling factors associated with a set of transmission ports (and/or PAs).
  • PAI 23dBm PA
  • PA2 20dBm PA
  • PA3 17 dBm PAs
  • PA4 14dBm PAs
  • Tx 1-4 in the first panel
  • a the summation of cq of the Tx 1/2/3/4, with a cap at 1.
  • Fig. 6 is provided as an example. Other examples may differ from what is described with regard to Fig. 6.
  • Fig. 7 is a diagram illustrating an example 700 associated with a full power eight-port uplink transmission mode, in accordance with the present disclosure.
  • a UE 702 and a network node 704 may communicate with one another.
  • the UE 702 may be, be similar to, include, or be included in, the UE 120 depicted in Figs. 1, 2, 5A, 5B, and 6.
  • the network node 704 may be, be similar to, include, or be included in, the network node 110 depicted in Figs. 1, 2, and 6.
  • the UE 702 may transmit, and the network node 704 may receive, capability information.
  • the capability information may be associated with a full power mode corresponding to an eight-port uplink transmission operation associated with eight transmission ports (shown as “Txl,” “Tx2,” “Tx3,” “Tx4,” “Tx5,” “Tx6,” “Tx7,” and “Tx8”) of the UE 702.
  • the UE 702 may include eight PAs, at least two of which may correspond to different amplification values.
  • amplification values associated with respective PAs of the eight PAs may be based on respective power scaling factors of a plurality of power scaling factors.
  • a power scaling factor of the plurality of power scaling factors may include a ratio of a total power associated with the eight PAs to a total power control power.
  • the capability information may not include an indication of any power scaling factor of the plurality of power scaling factors.
  • the capability information may not include an indication of any power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation being a fully coherent transmission operation.
  • the capability information may indicate at least one power scaling factor of the plurality of power scaling factors. In some aspects, the capability information may indicate each power scaling factor of the plurality of power scaling factors. In some aspects, the capability information may indicate each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation being a non-coherent transmission operation.
  • a first subset of the eight transmission ports may include a first antenna group 708 and a second subset of the eight transmission ports may include a second antenna group 710.
  • the first antenna group 708 may include a first plurality of coherent transmission ports and the second antenna group 710 may include a second plurality of coherent transmission ports.
  • a transmission port of the first plurality of coherent transmission ports may be non-coherent with respect to a transmission port of the second plurality of coherent transmission ports.
  • the network node 704 may transmit, and the UE 702 may receive, an SRS configuration.
  • the SRS configuration may be based on the configuration information.
  • the UE 702 may configure, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication.
  • the total power scaling factor may include a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the UE 702 may obtain, identify, or determine the total transmission power of the PUSCH communication based on the precoder and the total power scaling factor.
  • the UE 702 may transmit, and the network node 704 may receive, a PUSCH communication.
  • the PU SCH communication may be transmitted based on the total transmission power.
  • the UE 702 may configure the total transmission power based on the precoder and the total power scaling factor, and then the UE may transmit the PUSCH communication in accordance with the total transmission power.
  • Fig. 7 is provided as an example. Other examples may differ from what is described with regard to Fig. 7.
  • FIG. 8 is a diagram illustrating an example process 800 performed, for example, by a UE, in accordance with the present disclosure.
  • Example process 800 is an example where the UE (e.g., UE 702) performs operations associated with full power eight-port uplink transmission mode.
  • process 800 may include configuring, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs (block 810).
  • the UE e.g., using communication manager 1008 and/or transmission component 1004, depicted in Fig.
  • the PUSCH 10 may configure, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs, as described above.
  • process 800 may include transmitting, to a network node, the PUSCH communication based on the total transmission power (block 820).
  • the UE e.g., using communication manager 1008 and/or transmission component 1004, depicted in Fig. 10
  • Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • a power scaling factor of the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA of the set of PAs.
  • the total power scaling factor is capped at a value of 1 based on the summation of the plurality of power scaling factors being greater than 1.
  • the set of transmission ports comprises eight transmission ports and the set of PAs comprises eight PAs
  • process 800 includes transmitting, to the network node, capability information associated with a full power mode corresponding to an eight-port uplink transmission operation associated with the eight transmission ports, wherein at least two PAs of the set of PAs correspond to different amplification values.
  • the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.
  • the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a fully coherent transmission operation.
  • the capability information indicates at least one power scaling factor of the plurality of power scaling factors.
  • the capability information indicates each power scaling factor of the plurality of power scaling factors.
  • the capability information indicates each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a non-coherent transmission operation.
  • a first subset of the eight transmission ports comprises a first antenna group and a second subset of the eight transmission ports comprises a second antenna group
  • the capability information indicates a first aggregated power scaling factor corresponding to the first antenna group and a second aggregated power scaling factor corresponding to the second antenna group.
  • the first antenna group comprises a first plurality of coherent transmission ports and the second antenna group comprises a second plurality of coherent transmission ports, and a transmission port of the first plurality of coherent transmission ports is non-coherent with respect to a transmission port of the second plurality of coherent transmission ports.
  • process 800 includes receiving, from the network node, an SRS configuration based on the capability information.
  • process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
  • Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a network node, in accordance with the present disclosure.
  • Example process 900 is an example where the network node (e.g., network node 704) performs operations associated with full power eight-port uplink transmission mode.
  • process 900 may include receiving, from a UE, a PUS CH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs (block 910).
  • the network node e.g., using communication manager 1108 and/or reception component 1102, depicted in Fig.
  • a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs, as described above.
  • process 900 may include performing a wireless communication task based on receiving the PUSCH communication (block 920).
  • the network node e.g., using communication manager 1108, reception component 1102, and/or transmission component 1104, depicted in Fig. 11
  • Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • a power scaling factor of the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA of the set of PAs.
  • the total power scaling factor is capped at a value of 1 based on the summation of the plurality of power scaling factors being greater than 1.
  • the set of transmission ports comprises eight transmission ports and the set of PAs comprises eight PAs
  • process 900 includes receiving, from the UE, capability information associated with a full power mode corresponding to an eight-port uplink transmission operation associated with the eight transmission ports, wherein at least two PAs of the set of PAs correspond to different amplification values.
  • the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.
  • the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a fully coherent transmission operation.
  • the capability information indicates at least one power scaling factor of the plurality of power scaling factors.
  • the capability information indicates each power scaling factor of the plurality of power scaling factors.
  • the capability information indicates each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a non-coherent transmission operation.
  • a first subset of the eight transmission ports comprises a first antenna group and a second subset of the eight transmission ports comprises a second antenna group
  • the capability information indicates a first aggregated power scaling factor corresponding to the first antenna group and a second aggregated power scaling factor corresponding to the second antenna group.
  • the first antenna group comprises a first plurality of coherent transmission ports and the second antenna group comprises a second plurality of coherent transmission ports, and a transmission port of the first plurality of coherent transmission ports is non-coherent with respect to a transmission port of the second plurality of coherent transmission ports.
  • process 900 includes transmitting, to the UE, an SRS configuration based on the capability information.
  • process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
  • Fig. 10 is a diagram of an example apparatus 1000 for wireless communication, in accordance with the present disclosure.
  • the apparatus 1000 may be a UE, or a UE may include the apparatus 1000.
  • the apparatus 1000 includes a reception component 1002 and a transmission component 1004, which may be in communication with one another (for example, via one or more buses and/or one or more other components).
  • the apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using the reception component 1002 and the transmission component 1004.
  • the apparatus 1000 may include a communication manager 1008.
  • the apparatus 1000 may be configured to perform one or more operations described herein in connection with Fig. 7. Additionally, or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as process 800 of Fig. 8.
  • the apparatus 1000 and/or one or more components shown in Fig. 10 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 10 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer- readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 1002 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1006.
  • the reception component 1002 may provide received communications to one or more other components of the apparatus 1000.
  • the reception component 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus 1000.
  • the reception component 1002 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2.
  • the transmission component 1004 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1006.
  • one or more other components of the apparatus 1000 may generate communications and may provide the generated communications to the transmission component 1004 for transmission to the apparatus 1006.
  • the transmission component 1004 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 1006.
  • the transmission component 1004 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2. In some aspects, the transmission component 1004 may be co-located with the reception component 1002 in a transceiver.
  • means for configuring, transmitting, outputting, or sending may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, or a combination thereof, of the UE described above in connection with Fig. 2.
  • means for receiving may include one or more antennas, a demodulator, a MIMO detector, a receive processor, or a combination thereof, of the UE described above in connection with Fig. 2.
  • a device may have an interface to output signals and/or data for transmission (a means for outputting).
  • a processor may output signals and/or data, via a bus interface, to an RF front end for transmission.
  • a device may have an interface to obtain the signals and/or data received from another device (a means for obtaining).
  • a processor may obtain (or receive) the signals and/or data, via a bus interface, from an RF front end for reception.
  • an RF front end may include various components, including transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, and the like, such as depicted in the examples in Fig. 2.
  • the communication manager 1008 and/or the transmission component 1004 may configure, based on a precoder and a total power scaling factor, a total transmission power of a PUSCH communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the communication manager 1008 may include one or more antennas, a modem, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2.
  • the communication manager 1008 may include the reception component 1002 and/or the transmission component 1004.
  • the communication manager 1008 may be, be similar to, include, or be included in, the communication manager 140 depicted in Figs. 1 and 2. In some aspects, the communication manager 1008 and/or the transmission component 1004 may transmit, to a network node, the PUSCH communication based on the total transmission power.
  • the communication manager 1008 and/or the transmission component 1004 may transmit, to a network node, capability information associated with a full power mode corresponding to an eight-port uplink transmission operation associated with eight transmission ports of the UE, the UE comprising eight PAs, at least two of which correspond to different amplification values.
  • the communication manager 1008 and/or the reception component 1002 may receive, from the network node, an SRS configuration based on the capability information.
  • the number and arrangement of components shown in Fig. 10 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 10. Furthermore, two or more components shown in Fig.
  • a set of (one or more) components shown in Fig. 10 may perform one or more functions described as being performed by another set of components shown in Fig. 10.
  • Fig. 11 is a diagram of an example apparatus 1100 for wireless communication, in accordance with the present disclosure.
  • the apparatus 1100 may be a network node, or a network node may include the apparatus 1100.
  • the apparatus 1100 includes a reception component 1102 and a transmission component 1104, which may be in communication with one another (for example, via one or more buses and/or one or more other components).
  • the apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using the reception component 1102 and the transmission component 1104.
  • the apparatus 1100 may include a communication manager 1108.
  • the apparatus 1100 may be configured to perform one or more operations described herein in connection with Fig. 7. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 900 of Fig. 9.
  • the apparatus 1100 and/or one or more components shown in Fig. 11 may include one or more components of the network node described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 11 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106.
  • the reception component 1102 may provide received communications to one or more other components of the apparatus 1100.
  • the reception component 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus 1100.
  • the reception component 1102 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the network node described in connection with Fig. 2.
  • the transmission component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106.
  • one or more other components of the apparatus 1100 may generate communications and may provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106.
  • the transmission component 1104 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 1106.
  • the transmission component 1104 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the transmission component 1104 may be co-located with the reception component 1102 in a transceiver.
  • means for transmitting, outputting, or sending may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, or a combination thereof, of the UE described above in connection with Fig. 2.
  • means for receiving may include one or more antennas, a demodulator, a MIMO detector, a receive processor, or a combination thereof, of the UE described above in connection with Fig. 2.
  • a device may have an interface to output signals and/or data for transmission (a means for outputting). For example, a processor may output signals and/or data, via a bus interface, to an RF front end for transmission. Similarly, rather than actually receiving signals and/or data, a device may have an interface to obtain the signals and/or data received from another device (a means for obtaining). For example, a processor may obtain (or receive) the signals and/or data, via a bus interface, from an RF front end for reception.
  • an RF front end may include various components, including transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, and the like, such as depicted in the examples in Fig. 2.
  • the communication manager 1108 and/or the reception component 1102 may receive, from a UE, a PUSCH communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a PA of a set of PAs.
  • the communication manager 1108 may include one or more antennas, a modem, a controller/processor, a memory, or a combination thereof, of the network node described in connection with Fig. 2. In some aspects, the communication manager 1108 may include the reception component 1102 and/or the transmission component 1104. In some aspects, the communication manager 1108 may be, be similar to, include, or be included in, the communication manager 150 depicted in Figs. 1 and 2. The communication manager 1108, the reception component 1102, and/or the transmission component 1104 may perform a wireless communication task based on receiving the PUSCH communication.
  • the communication manager 1108 and/or the reception component 1102 may receive, from a UE, capability information associated with a full power mode corresponding to an eightport uplink transmission operation associated with eight antenna ports of the UE, the UE comprising eight PAs, at least two of which correspond to different amplification values.
  • the communication manager 1108 and/or the transmission component 1104 may transmit, to the UE, an SRS configuration based on the capability information.
  • Fig. 11 The number and arrangement of components shown in Fig. 11 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 11. Furthermore, two or more components shown in Fig. 11 may be implemented within a single component, or a single component shown in Fig. 11 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 11 may perform one or more functions described as being performed by another set of components shown in Fig. 11.
  • Aspect 1 A method of wireless communication performed by an apparatus at a user equipment (UE), comprising: configuring, based on a precoder and a total power scaling factor, a total transmission power of a physical uplink shared channel (PUSCH) communication, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a power amplifier (PA) of a set of PAs; and transmitting, to a network node, the PUSCH communication based on the total transmission power.
  • Aspect 2 The method of Aspect 1, wherein a power scaling factor of the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA of the set of P As
  • Aspect 3 The method of either of Aspects 1 or 2, wherein the total power scaling factor is capped at a value of 1 based on the summation of the plurality of power scaling factors being greater than 1.
  • Aspect 4 The method of any of Aspects 1-3, wherein the set of transmission ports comprises eight transmission ports and the set of PAs comprises eight PAs, the method further comprising transmitting, to the network node, capability information associated with a full power mode corresponding to an eight-port uplink transmission operation associated with the eight transmission ports, wherein at least two PAs of the set of PAs correspond to different amplification values.
  • Aspect 5 The method of Aspect 4, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.
  • Aspect 6 The method of Aspect 5, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a fully coherent transmission operation.
  • Aspect 7 The method of Aspect 4, wherein the capability information indicates at least one power scaling factor of the plurality of power scaling factors.
  • Aspect 8 The method of Aspect 7, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.
  • Aspect 9 The method of Aspect 8, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a non-coherent transmission operation.
  • Aspect 10 The method of any of Aspects 7-9, wherein a first subset of the eight transmission ports comprises a first antenna group and a second subset of the eight transmission ports comprises a second antenna group, and wherein the capability information indicates a first aggregated power scaling factor corresponding to the first antenna group and a second aggregated power scaling factor corresponding to the second antenna group.
  • Aspect 11 The method of Aspect 10, wherein the first antenna group comprises a first plurality of coherent transmission ports and the second antenna group comprises a second plurality of coherent transmission ports, and wherein a transmission port of the first plurality of coherent transmission ports is non-coherent with respect to a transmission port of the second plurality of coherent transmission ports.
  • Aspect 12 The method of any of Aspects 4-11, further comprising receiving, from the network node, a sounding reference signal (SRS) configuration based on the capability information.
  • SRS sounding reference signal
  • a method of wireless communication performed by an apparatus at a network node comprising: receiving, from a user equipment (UE), a physical uplink shared channel (PUSCH) communication having a total transmission power that is based on a precoder and a total power scaling factor, the total power scaling factor comprising a summation of a plurality of power scaling factors associated with a set of transmission ports of the UE, each transmission port of the set of transmission ports corresponding to a power amplifier (PA) of a set of PAs; and performing a wireless communication task based on receiving the PUSCH communication.
  • UE user equipment
  • PUSCH physical uplink shared channel
  • Aspect 14 The method of Aspect 13, wherein a power scaling factor of the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA of the set of PAs.
  • Aspect 15 The method of either of Aspects 13 or 14, wherein the total power scaling factor is capped at a value of 1 based on the summation of the plurality of power scaling factors being greater than 1.
  • Aspect 16 The method of any of Aspects 13-15, wherein the set of transmission ports comprises eight transmission ports and the set of PAs comprises eight PAs, the method further comprising receiving, from the UE, capability information associated with a full power mode corresponding to an eight-port uplink transmission operation associated with the eight transmission ports, wherein at least two PAs of the set of PAs correspond to different amplification values.
  • Aspect 17 The method of Aspect 16, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.
  • Aspect 18 The method of Aspect 17, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a fully coherent transmission operation.
  • Aspect 19 The method of Aspect 16, wherein the capability information indicates at least one power scaling factor of the plurality of power scaling factors.
  • Aspect 20 The method of Aspect 19, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.
  • Aspect 21 The method of Aspect 20, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmission operation comprising a non-coherent transmission operation.
  • Aspect 22 The method of any of Aspects 19-21, wherein a first subset of the eight transmission ports comprises a first antenna group and a second subset of the eight transmission ports comprises a second antenna group, and wherein the capability information indicates a first aggregated power scaling factor corresponding to the first antenna group and a second aggregated power scaling factor corresponding to the second antenna group.
  • Aspect 23 The method of Aspect 22, wherein the first antenna group comprises a first plurality of coherent transmission ports and the second antenna group comprises a second plurality of coherent transmission ports, and wherein a transmission port of the first plurality of coherent transmission ports is non-coherent with respect to a transmission port of the second plurality of coherent transmission ports.
  • Aspect 24 The method of any of Aspects 16-23, further comprising transmitting, to the UE, a sounding reference signal (SRS) configuration based on the capability information.
  • SRS sounding reference signal
  • Aspect 25 An apparatus for wireless communication at a device, comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors, individually or collectively, to cause the apparatus to perform the method of one or more of Aspects 1-12.
  • Aspect 26 A device for wireless communication, comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors individually or collectively configured to perform the method of one or more of Aspects 1-12.
  • Aspect 27 An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 1-12.
  • Aspect 28 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instmctions executable by a processor to perform the method of one or more of Aspects 1-12.
  • Aspect 29 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-12.
  • Aspect 30 An apparatus for wireless communication at a device, comprising one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors, individually or collectively, to cause the apparatus to perform the method of one or more of Aspects 13-24.
  • Aspect 31 A device for wireless communication, comprising one or more memories and one or more processors coupled to the one or more processors, the one or more processors individually or collectively configured to perform the method of one or more of Aspects 13-24.
  • Aspect 32 An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 13-24.
  • Aspect 33 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instmctions executable by a processor to perform the method of one or more of Aspects 13-24.
  • Aspect 34 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 13-24.
  • the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software.
  • “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a “processor” is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods are described herein without reference to specific software code, since those skilled in the art will understand that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (e.g., a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c).
  • the terms “has,” “have,” “having,” or the like are intended to be open-ended terms that do not limit an element that they modify (e.g., an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or,” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of’).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation concernent de manière générale la communication sans fil. Selon certains aspects, un équipement utilisateur (UE) peut configurer, sur la base d'un précodeur et d'un facteur de mise à l'échelle de puissance totale, une puissance de transmission totale d'une communication de canal physique partagé montant (PUSCH), le facteur de mise à l'échelle de puissance totale comprenant une sommation d'une pluralité de facteurs de mise à l'échelle de puissance associés à un ensemble de ports de transmission de l'UE, chaque port de transmission de l'ensemble de ports de transmission correspondant à un amplificateur de puissance (PA) d'un ensemble de PA. L'UE peut transmettre, à un nœud de réseau, la communication PUSCH sur la base de la puissance de transmission totale. De nombreux autres aspects sont décrits.
PCT/US2023/074567 2022-09-30 2023-09-19 Mode de transmission en liaison montante à huit ports à pleine puissance WO2024073273A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202263378024P 2022-09-30 2022-09-30
US63/378,024 2022-09-30
US18/469,358 US20240114468A1 (en) 2022-09-30 2023-09-18 Full power eight-port uplink transmission mode
US18/469,358 2023-09-18

Publications (1)

Publication Number Publication Date
WO2024073273A1 true WO2024073273A1 (fr) 2024-04-04

Family

ID=88373696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/074567 WO2024073273A1 (fr) 2022-09-30 2023-09-19 Mode de transmission en liaison montante à huit ports à pleine puissance

Country Status (1)

Country Link
WO (1) WO2024073273A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210051608A1 (en) * 2019-08-16 2021-02-18 Qualcomm Incorporated Signaling and configuration of maximum transmit power using virtual ports
EP3883303A1 (fr) * 2018-11-12 2021-09-22 Datang Mobile Communications Equipment Co., Ltd. Procédé et dispositif de commande de puissance de liaison montante

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3883303A1 (fr) * 2018-11-12 2021-09-22 Datang Mobile Communications Equipment Co., Ltd. Procédé et dispositif de commande de puissance de liaison montante
US20210051608A1 (en) * 2019-08-16 2021-02-18 Qualcomm Incorporated Signaling and configuration of maximum transmit power using virtual ports

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "View on full power UL transmission", vol. RAN WG1, no. Athens, Greece; 20190225 - 20190301, 15 February 2019 (2019-02-15), XP051600001, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG1%5FRL1/TSGR1%5F96/Docs/R1%2D1902307%2Ezip> [retrieved on 20190215] *

Similar Documents

Publication Publication Date Title
US11963201B2 (en) User equipment antenna subarray selection dependent beam switching capability reporting
CN116114290A (zh) 联合下行链路和上行链路传输配置指示符（tci）状态场景中的物理上行链路共享信道（pusch）传输
US20220132350A1 (en) Downlink reference signal reports for antenna panels
US20230284010A1 (en) User equipment antenna capability indication
WO2023211619A1 (fr) Configuration de ressource de signal de référence de sondage
EP4402933A1 (fr) Indications de participation d&#39;équipement utilisateur associées à un apprentissage fédéré
CN116158013A (zh) 用于宽带宽***的参考信号配置和准共处映射
US20240114468A1 (en) Full power eight-port uplink transmission mode
WO2024073273A1 (fr) Mode de transmission en liaison montante à huit ports à pleine puissance
WO2024065260A1 (fr) Opérations de canal physique partagé descendant à transmission conjointe cohérente sur points de transmission-réception multiples
US11984962B1 (en) Mitigating polarization performance loss with tilted antenna arrays
US11929813B1 (en) Dynamic antenna set switching for interference mitigation
WO2024077580A1 (fr) Étalonnage de port de transmission
WO2023160140A1 (fr) Indications d&#39;état d&#39;indicateur de configuration de transmission unifiée pour des configurations de point de réception et transmission unique (trp) et de trp multiples
WO2023216174A1 (fr) Configuration de types d&#39;indicateur de configuration de transmission pour des points de réception de transmission dans de multiples opérations de point de réception de transmission
US12015460B1 (en) Configuring antenna array thinning operations at wireless devices
WO2023201459A1 (fr) Mappage d&#39;identifiants de points de transmission-réception à des composantes de transmission de liaison montante simultanées pour de multiples points d&#39;émission-réception
US20240098530A1 (en) Primary cell beam-based secondary cell beam indication
WO2023087166A1 (fr) Association de ports de signal de référence de démodulation à des ensembles de ressources de signal de référence de sondage pour des communications à multiplexage par répartition spatiale
WO2023206358A1 (fr) Matrices de précodage pour transmissions de liaison montante à pleine puissance
WO2024124517A1 (fr) Sélection d&#39;occasion de canal d&#39;accès aléatoire pour transfert
US20240146490A1 (en) Bandwidth part configurations for mixed half duplex and subband full duplex communications
WO2023207264A1 (fr) Critère de restriction de sous-ensemble de livres de code pour transmission conjointe cohérente
WO2024148552A1 (fr) Rétroaction d&#39;informations d&#39;état de canal associée à une liaison de communication à nœuds multiples
US20240023025A1 (en) Power control loop cancellation requests

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23789466

Country of ref document: EP

Kind code of ref document: A1