[go: up one dir, main page]

WO2025207896A1 - Procédés de commutation de mode d'indication de faisceau pour une gestion de faisceaux basée sur l'intelligence artificielle/apprentissage automatique - Google Patents

Procédés de commutation de mode d'indication de faisceau pour une gestion de faisceaux basée sur l'intelligence artificielle/apprentissage automatique

Info

Publication number
WO2025207896A1
WO2025207896A1 PCT/US2025/021773 US2025021773W WO2025207896A1 WO 2025207896 A1 WO2025207896 A1 WO 2025207896A1 US 2025021773 W US2025021773 W US 2025021773W WO 2025207896 A1 WO2025207896 A1 WO 2025207896A1
Authority
WO
WIPO (PCT)
Prior art keywords
tci state
wtru
tci
mode
state indication
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/US2025/021773
Other languages
English (en)
Inventor
Young Woo Kwak
Nazli KHAN BEIGI
Haseeb UR REHMAN
Moon Il Lee
Yugeswar Deenoo NARAYANAN THANGARAJ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Patent Holdings Inc
Original Assignee
InterDigital Patent Holdings Inc
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
Application filed by InterDigital Patent Holdings Inc filed Critical InterDigital Patent Holdings Inc
Publication of WO2025207896A1 publication Critical patent/WO2025207896A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • 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
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection

Definitions

  • Beam management includes a downlink (DL) transmit (Tx) beam prediction for both wireless transmit/receive unit (WTRU)-sided model and NW-sided model.
  • a spatial-domain DL Tx beam prediction for Set A of beams based on measurement results of Set B of beams e.g., “BM-Case1”.
  • a temporal DL Tx beam prediction for Set A of beams based on the historic measurement results of Set B of beams e.g., “BM-Case2”.
  • Necessary signalli ng/mechanism(s) may be specified to facilitate LCM operations specific to the Beam Management use cases, if any.
  • Method(s) may be enabled to ensure consistency between training and inference regarding NW-side additional conditions (if identified) for inference at the WTRU.
  • one or more (e.g., all the) beams in a cell were transmitted and measured to identify a best beam and receive channels and signals.
  • RSs for selected e.g., only selected beams
  • AI/ML model estimates qualities of other beams based on measurements of the selected beams.
  • Methods and apparatuses may be provided for application of a default transmission configuration indication (TCI) state indication mode based on TCI states within a reference signal (RS) resource set with a first type RSs.
  • TCI transmission configuration indication
  • Methods and apparatuses may be provided for determination of TCI state indication mode based on wireless transmit/receive unit (WTRU) measurements, key performance indicators (KPIs) and gNB indication.
  • WTRU wireless transmit/receive unit
  • KPIs key performance indicators
  • Methods and apparatuses may be provided for application of a default TCI state with a TCI state based on a measured RS within a RS resource set including both measured RSs and estimated RSs.
  • a WTRU may receive configuration information indicating a TCI state indication mode, a second TCI state indication mode, an AI/ML model location, and/or one or more TCI states of a first TCI type or a second TCI type.
  • the WTRU may determine to enable the first TCI state indication mode or the second TCI state indication mode for downlink and uplink.
  • the WTRU may communicate on the downlink or the uplink using a TCI state of the one or more TCI states based on the enabled first or second TCI state indication mode.
  • the WTRU may determine a channel state information (CSI) reporting mode based on the enabled first or second TCI state indication mode and the AI/ML model location.
  • the WTRU may send a CSI report according to the determined CSI reporting mode.
  • CSI channel state information
  • the first TCI state indication mode may be an AI/ML based TCI state indication mode and the second TCI state indication mode may be a non-AI/ML based TCI state indication mode.
  • the determination to enable the first TCI state indication mode or the second TCI state indication mode may be based on one or more of an explicit indication received from a network node, one or more WTRU parameters, or a mode for alignment of beam indication.
  • the determination to enable the first TCI state indication mode or the second TCI state indication mode may be based on one or more of a measured beam prediction accuracy being less than a first preconfigured threshold, a measured beam quality being less than a second preconfigured threshold, a difference between the measured beam quality and a predicted beam quality, a measured WTRU rotation being greater than a third preconfigured threshold, a measured WTRU movement being greater than a fourth preconfigured threshold, or a measured maximum permitted exposure (MPE) being greater than a fifth preconfigured threshold.
  • MPE measured maximum permitted exposure
  • the TCI state may be a first TCI state of the one or more TCI states.
  • the WTRU may receive a downlink shared channel using a second TCI state of the one or more TCI states before determining to enable the first or second TCI state indication mode.
  • Being configured to communicate on the downlink or the uplink using the TCI state may include being configured to monitor control resource sets (CORESETs) or search spaces to detect a physical downlink control channel using the TCI state, receive a physical downlink shared channel using the TCI state; and/or send an uplink channel using the TCI state.
  • the CSI reporting mode may include a periodic CSI reporting mode or a semi-static CSI reporting mode.
  • the CSI report may indicate up to 4 resource indicators with corresponding reference signal received powers (RSRPs). Based on a determination to enable the second TCI state indication mode and based on the AI/ML model location being at the WTRU, the CSI report may indicate up to 4 resource indicators or logical beam identifiers (IDs) with corresponding RSRPs. Based on a determination to enable the second TCI State indication mode and based on the AI/ML model location being at the network, the CSI report may indicate RSRPs from a first RS resource set without beam indication.
  • RSRPs reference signal received powers
  • FIG. 1A is a system diagram illustrating an example communications system in which one or more disclosed embodiments may be implemented.
  • FIG. 1A is a diagram illustrating an example communications system 100 in which one or more disclosed embodiments may be implemented.
  • the communications system 100 may be a multiple access system that provides content, such as voice, data, video, messaging, broadcast, etc., to multiple wireless users.
  • the communications system 100 may enable multiple wireless users to access such content through the sharing of system resources, including wireless bandwidth.
  • the communications systems 100 may employ one or more channel access methods, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), single-carrier FDMA (SC-FDMA), zero-tail unique-word DFT-Spread OFDM (ZT UW DTS-s OFDM), unique word OFDM (UW-OFDM), resource block-filtered OFDM, filter bank multicarrier (FBMC), and the like.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal FDMA
  • SC-FDMA single-carrier FDMA
  • ZT UW DTS-s OFDM zero-tail unique-word DFT-Spread OFDM
  • UW-OFDM unique word OFDM
  • FBMC filter bank multicarrier
  • the communications system 100 may include wireless transmit/receive units (WTRUs) 102a, 102b, 102c, 102d, a RAN 104/113, a CN 106/115, a public switched telephone network (PSTN) 108, the Internet 110, and other networks 112, though it will be appreciated that the disclosed embodiments contemplate any number of WTRUs, base stations, networks, and/or network elements.
  • WTRUs 102a, 102b, 102c, 102d may be any type of device configured to operate and/or communicate in a wireless environment.
  • the WTRUs 102a, 102b, 102c, 102d may be configured to transmit and/or receive wireless signals and may include a user equipment (UE), a mobile station, a fixed or mobile subscriber unit, a subscription-based unit, a pager, a cellular telephone, a personal digital assistant (PDA), a smartphone, a laptop, a netbook, a personal computer, a wireless sensor, a hotspot or Mi-Fi device, an Internet of Things (loT) device, a watch or other wearable, a head-mounted display (HMD), a vehicle, a drone, a medical device and applications (e.g., remote surgery), an industrial device and applications (e.g, a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts), a consumer electronics device, a device operating on commercial and/or industrial wireless networks, and the like.
  • UE user equipment
  • PDA personal digital assistant
  • HMD head-mounted display
  • a vehicle a drone,
  • any of the WTRUs 102a, 102b, 102c and 102d may be interchangeably referred to as a WTRU. Further, any description herein that is described with reference to a UE may be equally applicable to a WTRU (or vice versa). For example, a WTRU may be configured to perform any of the processes or procedures described herein as being performed by a UE (or vice versa).
  • the communications systems 100 may also include a base station 114a and/or a base station 114b.
  • Each of the base stations 114a, 114b may be any type of device configured to wirelessly interface with at least one of the WTRUs 102a, 102b, 102c, 102d to facilitate access to one or more communication networks, such as the CN 106/115, the I nternet 110, and/or the other networks 112.
  • the base stations 114a, 114b may be a base transceiver station (BTS), a Node-B, an eNode B, a Home Node B, a Home eNode B, a gNB, a NR NodeB, a site controller, an access point (AP), a wireless router, and the like. While the base stations 114a, 114b are each depicted as a single element, it will be appreciated that the base stations 114a, 114b may include any number of interconnected base stations and/or network elements.
  • the base station 114a may be part of the RAN 104/113, which may also include other base stations and/or network elements (not shown), such as a base station controller (BSC), a radio network controller (RNC), relay nodes, etc.
  • BSC base station controller
  • RNC radio network controller
  • the base station 114a and/or the base station 114b may be configured to transmit and/or receive wireless signals on one or more carrier frequencies, which may be referred to as a cell (not shown). These frequencies may be in licensed spectrum, unlicensed spectrum, or a combination of licensed and unlicensed spectrum.
  • a cell may provide coverage for a wireless service to a specific geographical area that may be relatively fixed or that may change over time. The cell may further be divided into cell sectors.
  • the base stations 114a, 114b may communicate with one or more of the WTRUs 102a, 102b, 102c, 102d over an air interface 116, which may be any suitable wireless communication link (e.g., radio frequency (RF), microwave, centimeter wave, micrometer wave, infrared (IR), ultraviolet (UV), visible light, etc.).
  • the air interface 116 may be established using any suitable radio access technology (RAT).
  • RAT radio access technology
  • the communications system 100 may be a multiple access system and may employ one or more channel access schemes, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and the like.
  • the base station 114a in the RAN 104/113 and the WTRUs 102a, 102b, 102c may implement a radio technology such as Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (UTRA), which may establish the air interface 115/116/117 using wideband CDMA (WCDMA).
  • WCDMA may include communication protocols such as High-Speed Packet Access (HSPA) and/or Evolved HSPA (HSPA+).
  • HSPA may include High-Speed Downlink (DL) Packet Access (HSDPA) and/or High-Speed UL Packet Access (HSUPA).
  • the base station 114a and the WTRUs 102a, 102b, 102c may implement a radio technology such as Evolved UMTS Terrestrial Radio Access (E-UTRA), which may establish the air interface 116 using Long Term Evolution (LTE) and/or LTE-Advanced (LTE-A) and/or LTE-Advanced Pro (LTE-A Pro).
  • E-UTRA Evolved UMTS Terrestrial Radio Access
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-A Pro LTE-Advanced Pro
  • the base station 114a and the WTRUs 102a, 102b, 102c may implement a radio technology such as NR Radio Access, which may establish the air interface 116 using New Radio (NR).
  • a radio technology such as NR Radio Access, which may establish the air interface 116 using New Radio (NR).
  • the base station 114a and the WTRUs 102a, 102b, 102c may implement multiple radio access technologies.
  • the base station 114a and the WTRUs 102a, 102b, 102c may implement LTE radio access and NR radio access together, for instance using dual connectivity (DC) principles.
  • DC dual connectivity
  • the air interface utilized by WTRUs 102a, 102b, 102c may be characterized by multiple types of radio access technologies and/or transmissions sent to/from multiple types of base stations (e.g., a eNB and a gNB).
  • the base station 114a and the WTRUs 102a, 102b, 102c may implement radio technologies such as IEEE 802.11 (i.e., Wireless Fidelity (WiFi), IEEE 802.16 (i.e., Worldwide Interoperability for Microwave Access (WiMAX)), CDMA2000, CDMA2000 1X, CDMA2000 EV-DO, Interim Standard 2000 (IS-2000), Interim Standard 95 (IS-95), Interim Standard 856 (IS-856), Global System for Mobile communications (GSM), Enhanced Data rates for GSM Evolution (EDGE), GSM EDGE (GERAN), and the like.
  • IEEE 802.11 i.e., Wireless Fidelity (WiFi)
  • IEEE 802.16 i.e., Worldwide Interoperability for Microwave Access (WiMAX)
  • CDMA2000, CDMA2000 1X, CDMA2000 EV-DO Code Division Multiple Access 2000
  • IS-95 Interim Standard 95
  • IS-856 Interim Standard 856
  • GSM Global System for
  • the base station 114b and the WTRUs 102c, 102d may implement a radio technology such as IEEE 802.11 to establish a wireless local area network (WLAN).
  • the base station 114b and the WTRUs 102c, 102d may implement a radio technology such as IEEE 802.15 to establish a wireless personal area network (WPAN).
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • the base station 114b and the WTRUs 102c, 102d may utilize a cellular-based RAT (e.g., WCDMA, CDMA2000, GSM, LTE, LTE-A, LTE-A Pro, NR etc.) to establish a picocell or femtocell.
  • a cellular-based RAT e.g., WCDMA, CDMA2000, GSM, LTE, LTE-A, LTE-A Pro, NR etc.
  • the base station 114b may have a direct connection to the Internet 110.
  • the base station 114b may not be required to access the Internet 110 via the CN 106/115.
  • the RAN 104/113 may be in communication with the CN 106/115, which may be any type of network configured to provide voice, data, applications, and/or voice over internet protocol (VoIP) services to one or more of the WTRUs 102a, 102b, 102c, 102d.
  • the data may have varying quality of service (QoS) requirements, such as differing throughput requirements, latency requirements, error tolerance requirements, reliability requirements, data throughput requirements, mobility requirements, and the like.
  • QoS quality of service
  • the CN 106/115 may provide call control, billing services, mobile location-based services, pre-paid calling, Internet connectivity, video distribution, etc., and/or perform high-level security functions, such as user authentication.
  • the CN 106/115 may also serve as a gateway for the WTRUs 102a, 102b, 102c, 102d to access the PSTN 108, the Internet 110, and/or the other networks 112.
  • the PSTN 108 may include circuit- switched telephone networks that provide plain old telephone service (POTS).
  • POTS plain old telephone service
  • the Internet 110 may include a global system of interconnected computer networks and devices that use common communication protocols, such as the transmission control protocol (TCP), user datagram protocol (UDP) and/or the internet protocol (IP) in the TCP/IP internet protocol suite.
  • the networks 112 may include wired and/or wireless communications networks owned and/or operated by other service providers.
  • the networks 112 may include another CN connected to one or more RANs, which may employ the same RAT as the RAN 104/113 or a different RAT.
  • Some or all of the WTRUs 102a, 102b, 102c, 102d in the communications system 100 may include multi-mode capabilities (e.g., the WTRUs 102a, 102b, 102c, 102d may include multiple transceivers for communicating with different wireless networks over different wireless links).
  • the WTRU 102c shown in FIG. 1A may be configured to communicate with the base station 114a, which may employ a cellular-based radio technology, and with the base station 114b, which may employ an IEEE 802 radio technology.
  • FIG. 1 B is a system diagram illustrating an example WTRU 102.
  • the WTRU 102 may include a processor 118, a transceiver 120, a transmit/receive element 122, a speaker/microphone 124, a keypad 126, a display/touchpad 128, non-removable memory 130, removable memory 132, a power source 134, a global positioning system (GPS) chipset 136, and/or other peripherals 138, among others.
  • GPS global positioning system
  • the processor 118 may be a general purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) circuits, any other type of integrated circuit (IC), a state machine, and the like.
  • the processor 118 may perform signal coding, data processing, power control, input/output processing, and/or any other functionality that enables the WTRU 102 to operate in a wireless environment.
  • the processor 118 may be coupled to the transceiver 120, which may be coupled to the transmit/receive element 122. While FIG. 1B depicts the processor 118 and the transceiver 120 as separate components, it will be appreciated that the processor 118 and the transceiver 120 may be integrated together in an electronic package or chip.
  • the WTRU 102 may include any number of transmit/receive elements 122. More specifically, the WTRU 102 may employ MIMO technology. Thus, in one embodiment, the WTRU 102 may include two or more transmit/receive elements 122 (e.g., multiple antennas) for transmitting and receiving wireless signals over the air interface 116.
  • the WTRU 102 may include two or more transmit/receive elements 122 (e.g., multiple antennas) for transmitting and receiving wireless signals over the air interface 116.
  • the transceiver 120 may be configured to modulate the signals that are to be transmitted by the transmit/receive element 122 and to demodulate the signals that are received by the transmit/receive element 122.
  • the WTRU 102 may have multi-mode capabilities.
  • the transceiver 120 may include multiple transceivers for enabling the WTRU 102 to communicate via multiple RATs, such as NR and IEEE 802.11 , for example.
  • the processor 118 of the WTRU 102 may be coupled to, and may receive user input data from, the speaker/microphone 124, the keypad 126, and/or the display/touchpad 128 (e.g., a liquid crystal display (LCD) display unit or organic light-emitting diode (OLED) display unit).
  • the processor 118 may also output user data to the speaker/microphone 124, the keypad 126, and/or the display/touchpad 128.
  • the processor 118 may access information from, and store data in, any type of suitable memory, such as the non-removable memory 130 and/or the removable memory 132.
  • the non-removable memory 130 may include random-access memory (RAM), read-only memory (ROM), a hard disk, or any other type of memory storage device.
  • the removable memory 132 may include a subscriber identity module (SIM) card, a memory stick, a secure digital (SD) memory card, and the like.
  • SIM subscriber identity module
  • SD secure digital
  • the processor 118 may access information from, and store data in, memory that is not physically located on the WTRU 102, such as on a server or a home computer (not shown).
  • the peripherals 138 may include one or more sensors, the sensors may be one or more of a gyroscope, an accelerometer, a hall effect sensor, a magnetometer, an orientation sensor, a proximity sensor, a temperature sensor, a time sensor; a geolocation sensor; an altimeter, a light sensor, a touch sensor, a magnetometer, a barometer, a gesture sensor, a biometric sensor, and/or a humidity sensor.
  • a gyroscope an accelerometer, a hall effect sensor, a magnetometer, an orientation sensor, a proximity sensor, a temperature sensor, a time sensor; a geolocation sensor; an altimeter, a light sensor, a touch sensor, a magnetometer, a barometer, a gesture sensor, a biometric sensor, and/or a humidity sensor.
  • the WRTU 102 may include a half-duplex radio for which transmission and reception of some or all of the signals (e.g., associated with particular subframes for either the UL (e.g., for transmission) or the downlink (e.g., for reception)).
  • a half-duplex radio for which transmission and reception of some or all of the signals (e.g., associated with particular subframes for either the UL (e.g., for transmission) or the downlink (e.g., for reception)).
  • the RAN 104 may include eNode-Bs 160a, 160b, 160c, though it will be appreciated that the RAN 104 may include any number of eNode-Bs while remaining consistent with an embodiment.
  • the eNode-Bs 160a, 160b, 160c may each include one or more transceivers for communicating with the WTRUs 102a, 102b, 102c over the air interface 116.
  • the eNode-Bs 160a, 160b, 160c may implement MIMO technology.
  • the eNode-B 160a for example, may use multiple antennas to transmit wireless signals to, and/or receive wireless signals from, the WTRU 102a.
  • the CN 106 may facilitate communications with other networks.
  • the CN 106 may provide the WTRUs 102a, 102b, 102c with access to circuit-switched networks, such as the PSTN 108, to facilitate communications between the WTRUs 102a, 102b, 102c and traditional land-line communications devices.
  • the CN 106 may include, or may communicate with, an IP gateway (e.g., an IP multimedia subsystem (IMS) server) that serves as an interface between the CN 106 and the PSTN 108.
  • IMS IP multimedia subsystem
  • the CN 106 may provide the WTRUs 102a, 102b, 102c with access to the other networks 112, which may include other wired and/or wireless networks that are owned and/or operated by other service providers.
  • the AP may transmit a beacon on a fixed channel, such as a primary channel.
  • the primary channel may be a fixed width (e.g, 20 MHz wide bandwidth) or a dynamically set width via signaling.
  • the primary channel may be the operating channel of the BSS and may be used by the STAs to establish a connection with the AP.
  • Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) may be implemented, for example in in 802.11 systems.
  • the STAs e.g, every STA, including the AP, may sense the primary channel.
  • VHT ST may support 20MHz, 40 MHz, 80 MHz, and/or 160 MHz wide channels.
  • the 40 MHz, and/or 80 MHz, channels may be formed by combining contiguous 20 MHz channels.
  • a 160 MHz channel may be formed by combining 8 contiguous 20 MHz channels, or by combining two non-contiguous 80 MHz channels, which may be referred to as an 80+80 configuration.
  • the data, after channel encoding may be passed through a segment parser that may divide the data into two streams.
  • Inverse Fast Fourier Transform (IFFT) processing, and time domain processing may be done on each stream separately.
  • IFFT Inverse Fast Fourier Transform
  • MTC devices may have certain capabilities, for example, limited capabilities including support for (e.g., only support for) certain and/or limited bandwidths.
  • the MTC devices may include a battery with a battery life above a threshold (e.g., to maintain a very long battery life).
  • the RAN 113 may include gNBs 180a, 180b, 180c, though it will be appreciated that the RAN 113 may include any number of gNBs while remaining consistent with an embodiment.
  • the gNBs 180a, 180b, 180c may each include one or more transceivers for communicating with the WTRUs 102a, 102b, 102c over the air interface 116.
  • the gNBs 180a, 180b, 180c may implement MIMO technology.
  • gNBs 180a, 108b may utilize beamforming to transmit signals to and/or receive signals from the gNBs 180a, 180b, 180c.
  • the gNB 180a may use multiple antennas to transmit wireless signals to, and/or receive wireless signals from, the WTRU 102a.
  • the gNBs 180a, 180b, 180c may implement carrier aggregation technology.
  • the gNB 180a may transmit multiple component carriers to the WTRU 102a (not shown). A subset of these component carriers may be on unlicensed spectrum while the remaining component carriers may be on licensed spectrum.
  • the gNBs 180a, 180b, 180c may implement Coordinated Multi-Point (CoMP) technology.
  • WTRU 102a may receive coordinated transmissions from gNB 180a and gNB 180b (and/or gNB 180c).
  • CoMP Coordinated Multi-Point
  • the WTRUs 102a, 102b, 102c may communicate with gNBs 180a, 180b, 180c using transmissions associated with a scalable numerology. For example, the OFDM symbol spacing and/or OFDM subcarrier spacing may vary for different transmissions, different cells, and/or different portions of the wireless transmission spectrum.
  • the WTRUs 102a, 102b, 102c may communicate with gNBs 180a, 180b, 180c using subframe or transmission time intervals (TTIs) of various or scalable lengths (e.g., containing varying number of OFDM symbols and/or lasting varying lengths of absolute time).
  • TTIs subframe or transmission time intervals
  • the gNBs 180a, 180b, 180c may be configured to communicate with the WTRUs 102a, 102b, 102c in a standalone configuration and/or a non-standalone configuration.
  • WTRUs 102a, 102b, 102c may communicate with gNBs 180a, 180b, 180c without also accessing other RANs (e.g., such as eNode-Bs 160a, 160b, 160c).
  • WTRUs 102a, 102b, 102c may utilize one or more of gNBs 180a, 180b, 180c as a mobility anchor point.
  • WTRUs 102a, 102b, 102c may communicate with gNBs 180a, 180b, 180c using signals in an unlicensed band.
  • WTRUs 102a, 102b, 102c may communicate with/connect to gNBs 180a, 180b, 180c while also communicating with/connecting to another RAN such as eNode-Bs 160a, 160b, 160c.
  • WTRUs 102a, 102b, 102c may implement DC principles to communicate with one or more gNBs 180a, 180b, 180c and one or more eNode-Bs 160a, 160b, 160c substantially simultaneously.
  • eNode-Bs 160a, 160b, 160c may serve as a mobility anchor for WTRUs 102a, 102b, 102c and gNBs 180a, 180b, 180c may provide additional coverage and/or throughput for servicing WTRUs 102a, 102b, 102c.
  • the AMF 182a, 182b may be connected to one or more of the gNBs 180a, 180b, 180c in the RAN 113 via an N2 interface and may serve as a control node.
  • the AMF 182a, 182b may be responsible for authenticating users of the WTRUs 102a, 102b, 102c, support for network slicing (e.g., handling of different PDU sessions with different requirements), selecting a particular SMF 183a, 183b, management of the registration area, termination of NAS signaling, mobility management, and the like.
  • the AMF 162 may provide a control plane function for switching between the RAN 113 and other RANs (not shown) that employ other radio technologies, such as LTE, LTE-A, LTE-A Pro, and/or non-3GPP access technologies such as WiFi.
  • the SMF 183a, 183b may be connected to an AMF 182a, 182b in the CN 115 via an N11 interface.
  • the SMF 183a, 183b may also be connected to a UPF 184a, 184b in the CN 115 via an N4 interface.
  • the SMF 183a, 183b may select and control the UPF 184a, 184b and configure the routing of traffic through the UPF 184a, 184b.
  • the UPF 184a, 184b may be connected to one or more of the gNBs 180a, 180b, 180c in the RAN 113 via an N3 interface, which may provide the WTRUs 102a, 102b, 102c with access to packet- switched networks, such as the Internet 110, to facilitate communications between the WTRUs 102a, 102b, 102c and IP-enabled devices.
  • the UPF 184, 184b may perform other functions, such as routing and forwarding packets, enforcing user plane policies, supporting multi-homed PDU sessions, handling user plane QoS, buffering downlink packets, providing mobility anchoring, and the like.
  • the WTRUs 102a, 102b, 102c may be connected to a local Data Network (DN) 185a, 185b through the UPF 184a, 184b via the N3 interface to the UPF 184a, 184b and an N6 interface between the UPF 184a, 184b and the DN 185a, 185b.
  • DN local Data Network
  • one or more, or all, of the functions described herein with regard to one or more of: WTRU 102a-d, Base Station 114a-b, eNode-B 160a-c, MME 162, SGW 164, PGW 166, gNB 180a-c, AMF 182a-ab, UPF 184a-b, SMF 183a-b, DN 185a-b, and/or any other device(s) described herein, may be performed by one or more emulation devices (not shown).
  • the emulation devices may be one or more devices configured to emulate one or more, or all, of the functions described herein.
  • the emulation devices may be used to test other devices and/or to simulate network and/or WTRU functions.
  • the one or more emulation devices may perform the one or more, including all, functions while not being implemented/deployed as part of a wired and/or wireless communication network.
  • the emulation devices may be utilized in a testing scenario in a testing laboratory and/or a non-deployed e.g., testing) wired and/or wireless communication network in order to implement testing of one or more components.
  • the one or more emulation devices may be test equipment. Direct RF coupling and/or wireless communications via RF circuitry (e.g., which may include one or more antennas) may be used by the emulation devices to transmit and/or receive data.
  • RF circuitry e.g., which may include one or more antennas
  • Dynamic indication of AI/ML based beam indication may be enabled.
  • AI/ML model generalization Generally, AI/ML model without generalization (e.g., Trained data for AI/ML model is different with inference data of AI/ML model) have some performance degradation than AI/ML model with generalization (e.g., same data for training and inference) in most of the cases/evaluations. In some cases, AI/ML model without generalization shows better performance than non- Al baseline while AI/ML shows comparable or worse performance than non-AI baseline in some other cases.
  • Measurement errors degrade the beam prediction performance with AI/ML, while measurement errors also degrade the performance with non-AI baseline.
  • Methods for determining a TCI state indication mode may be provided based on one or more measured metrics (e.g., WTRU rotation, WTRU speed, etc.) and/or an indicated TCI state.
  • measured metrics e.g., WTRU rotation, WTRU speed, etc.
  • the WTRU may receive a TCI state indication (e.g., via DCI with/without scheduling PDSCH or MAC CE).
  • the WTRU may apply the indicated first TCI state to receive a corresponding PDSCH.
  • the indication may be based on a transmission of a signal (e.g., one or more of PUCCH, PUSCH, PRACH or UL RS) in an associated UL resource. For example, if the WTRU transmits the signal in a first resource, the WTRU may indicate the first mode of operation. If the WTRU transmits the signal in a second resource, the WTRU may indicate the second mode of operation.
  • the associated UL resource may be one or more of PUCCH resource, PRACH resource, RS resource, symbol, slot, subframe, RB, RBG, subband and etc. Additionally or alternatively, the WTRU may receive a confirmation on the WTRU indication (e.g., from a gNB).
  • the WTRU may apply the default TCI state associated to the first type of TCI states/first TCI state indication mode. Additionally or alternatively, based on the condition that the newly determined beam/TCI indication mode may be of the second type, the WTRU may apply the default TCI state associated with the second TCI state indication mode. Additionally or alternatively, based on the condition that the newly determined beam/TCI indication mode may be of the second type, the WTRU may apply the default TCI state associated to the second type of TCI states.
  • the WTRU may not use/switch/apply a CSI-reporting mode (e.g., dynamically) to the aperiodic CSI-report based on the determined TCI state indication mode and/or AI/ML location.
  • the WTRU may use a CSI- reporting mode based on the received configuration (e.g., based on the CSI-ReportConfig configuring the WTRU to report qualities of RSs associated to a Set B e.g., based on the CSI-ReportConfig configuring the WTRU to report predicted outputs (e.g., predicted beams of Set A and/or corresponding predicted beam qualities).
  • the WTRU may report a first set of CSI parameters (e.g., up to 4 CRIs/SSBRIs with corresponding RS/beam qualities (e.g., RSRPs, RSSI, CQI, SINR, Rl, PMI)).
  • a first set of CSI parameters e.g., up to 4 CRIs/SSBRIs with corresponding RS/beam qualities (e.g., RSRPs, RSSI, CQI, SINR, Rl, PMI)
  • the WTRU may report a second set of CSI parameters.
  • the WTRU may perform one or more of the following actions.
  • a WTRU may receive a configuration including (e.g., configuration information indicating) one or more of: a first and second TCI state indication mode, AI/ML model location, CSI reporting type (e.g., RSRP reporting for inference or best beam indication), alignment of DL and UL TCI state indication mode (e.g., same indication mode or different), a set of thresholds (e.g., for beam prediction accuracy, WTRU rotation, WTRU movement, MPE), a first RS resource set (configured with one or more first type of RS resource), a second RS resource set (configured with one or more second type of RS resource or logical beam ID), or one or more TCI states of a first TCI type or second TCI type.
  • a configuration information including (e.g., configuration information indicating) one or more of: a first and second TCI state indication mode, AI/ML model location, CSI reporting type (e.g., RSRP reporting for inference or best beam indication), alignment of DL and
  • Each second type RS resource of logical beam ID may be associated with one or more first type RS resource (e.g., for QCL measurements).
  • a TCI state of a first TCI type may be configured with a first RS resource type as a QCL Type-D reference.
  • a TCI state of a second TCI type may be configured with a logical beam ID or a second RS resource type as a QCL Type-D reference.
  • a first TCI type may be associated with a first TCI state indication mode and a second TCI type is associated with a second TCI state indication mode.
  • the WTRU may receive a TCI state indication (e.g., via DCI with/without scheduling PDSCH or MAC CE) and may apply the indicated first TCI state to receive a corresponding PDSCH.
  • the WTRU may determine (e.g., determine to enable) a TCI state indication mode for DL and UL based on one or more of the following. For example, the WTRU may determine to enable a first TCI state indication mode or a second TCI state indication mode for the DL and UL.
  • the WTRU may determine a TCI state indication mode for DL and UL based on a gNB explicit indication (e.g., one or more of DCI, MAC CE, transmitted CORESET/SearchSpace and etc.).
  • the WTRU may apply a second TCI state based on the determined TCI state indication mode. If the first TCI state is not of a TCI type associated with the determined TCI state indication mode, the WTRU may determine a second (e.g., default) TCI state (e.g., lowest TCI state ID among the TCI states of a TCI type associated with the determined TCI state indication mode). If the first TCI state is of the type associated with the determined TCI indication mode, the WTRU may determine that the second TCI state is the same as the first TCI state.
  • a second TCI state e.g., default
  • the WTRU may determine a CSI reporting mode based on the one or more of the following. The determination may be limited to periodic/semi-static CSI report or based on configurations. If the first TCI state indication mode is determined, the WTRU may report up to 4 CRIs/SSBRIs with corresponding RSRPs. If the second TCI state indication mode is determined and WTRU side AI/ML, the WTRU may report up to 4 CRIs/SSBRIs or logical beam IDs with corresponding RSRPs. If the second TCI state indication mode is determined and gNB side AI/ML, the WTRU may report RSRPs from the first RS resource set without beam indication. For example, the WTRU may send a CSI report according to the determined CSI reporting mode.
  • the proposed solutions described herein may enable dynamic change of beam indication mechanism between non-AI/ML and AI/ML based on measurements and KPIs.
  • TCI states e.g., only TCI states
  • TCI states associated with measured beams are activated so there’s no coverage loss from additional DCI payload due to activated TCI states from not measured beams.
  • dynamic adaptation of CSI reporting mode based on the determined beam indication mode is supported and no additional RRC reconfiguration of periodic CSI reports and/or MAC CE activation/deactivation of semi-static CSI reports are not needed.
  • LTE Long Term Evolution e.g. from 3GPP LTE R8 and up

Landscapes

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

Abstract

Une unité d'émission/réception sans fil (WTRU) peut recevoir des informations de configuration indiquant un premier mode d'indication d'état TCI (état d'indicateur de configuration de transmission), un second mode d'indication d'état TCI, un emplacement de modèle d'intelligence artificielle/apprentissage automatique (IA/ML) et/ou un ou plusieurs états TCI d'un premier type d'indicateur TCI ou d'un second type d'indicateur TCI. L'unité WTRU peut déterminer l'activation du premier mode d'indication d'état TCI ou du second mode d'indication d'état TCI pour une liaison descendante et pour une liaison montante. L'unité WTRU peut communiquer sur la liaison descendante ou sur la liaison montante à l'aide d'un état TCI parmi l'état ou les états TCI sur la base du premier ou du second mode d'indication d'état TCI activé. La WTRU peut déterminer un mode de rapport d'informations d'état de canal (CSI) sur la base du premier ou du second mode d'indication d'état TCI activé et de l'emplacement de modèle d'IA/ML. L'unité WTRU peut envoyer un rapport d'informations CSI selon le mode de rapport d'informations CSI déterminé.
PCT/US2025/021773 2024-03-29 2025-03-27 Procédés de commutation de mode d'indication de faisceau pour une gestion de faisceaux basée sur l'intelligence artificielle/apprentissage automatique Pending WO2025207896A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202463571562P 2024-03-29 2024-03-29
US63/571,562 2024-03-29

Publications (1)

Publication Number Publication Date
WO2025207896A1 true WO2025207896A1 (fr) 2025-10-02

Family

ID=95450074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2025/021773 Pending WO2025207896A1 (fr) 2024-03-29 2025-03-27 Procédés de commutation de mode d'indication de faisceau pour une gestion de faisceaux basée sur l'intelligence artificielle/apprentissage automatique

Country Status (1)

Country Link
WO (1) WO2025207896A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023245596A1 (fr) * 2022-06-24 2023-12-28 Qualcomm Incorporated Communications d'état d'indicateur de configuration de transmission (tci)
WO2024015709A1 (fr) * 2022-07-11 2024-01-18 Interdigital Patent Holdings, Inc. Procédés, appareil et systèmes de prédiction de faisceau hiérarchique sur la base d'une association de ressources de faisceau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023245596A1 (fr) * 2022-06-24 2023-12-28 Qualcomm Incorporated Communications d'état d'indicateur de configuration de transmission (tci)
WO2024015709A1 (fr) * 2022-07-11 2024-01-18 Interdigital Patent Holdings, Inc. Procédés, appareil et systèmes de prédiction de faisceau hiérarchique sur la base d'une association de ressources de faisceau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YU DING ET AL: "Other aspects on AI/ML for beam management", vol. RAN WG1, no. Athens, GR; 20230227 - 20230303, 17 February 2023 (2023-02-17), XP052247362, Retrieved from the Internet <URL:https://www.3gpp.org/ftp/TSG_RAN/WG1_RL1/TSGR1_112/Docs/R1-2300214.zip R1-2300214 Discussion on other aspects on AIML for beam management.docx> [retrieved on 20230217] *

Similar Documents

Publication Publication Date Title
US20240107525A1 (en) Pucch-related latency and coverage enhancement for subband non-overlapping full duplex
WO2023211785A1 (fr) Atténuation de brouillage basée sur la détection dans une opération duplex nr
EP4133882A1 (fr) Évaluation de canal de noeud de réception
JP2025529670A (ja) 二重化におけるタイミング整合
US20250240134A1 (en) Unified tci updates for mtrp including simultaneous bfr
WO2024173237A1 (fr) Planification inter-porteuses basée sur une structure de gestion d&#39;indicateur utci à étages multiples
EP4566232A1 (fr) Amélioration de latence et de couverture pour un duplex intégral sans chevauchement de sous-bande
EP4193553A1 (fr) Amélioration de couverture de pdcch
WO2025207896A1 (fr) Procédés de commutation de mode d&#39;indication de faisceau pour une gestion de faisceaux basée sur l&#39;intelligence artificielle/apprentissage automatique
US20250344170A1 (en) Random Access for Estimation SSBs in AIML Systems
WO2024233760A1 (fr) Dispositif et procédé de configuration de srs hiérarchique et de mesure d&#39;interférence de liaison croisée (cli) sur des ressources partagées dans des systèmes de duplex intégral sans chevauchement de sous-bande (sbfd)
WO2024233757A1 (fr) Procédés de gestion de transmission apériodique de srs pour une mesure d&#39;interférence de liaison croisée (cli) dans des systèmes de duplex intégral sans chevauchement de sous-bande (sbfd)
WO2025072125A1 (fr) Sélection de cellule et de ressource pour surveillance de signal de réveil à faible puissance avec polarisation reposant sur un type de cellule
WO2025072130A1 (fr) Sélection de cellule et de ressource pour surveillance de signal de réveil à faible puissance sur la base de valeurs de qualité de cellule
WO2025034839A1 (fr) Procédés pour activer/désactiver une transmission par téléversement dans des symboles en duplex intégral de sous-bande avec des signaux de référence de téléchargement sur la base d&#39;une relation spatiale
WO2025034844A1 (fr) Mise à jour dynamique basée sur wtru d&#39;état de protection de signaux de référence de liaison descendante
WO2025034850A1 (fr) Procédés pour activer/désactiver une transmission par téléversement dans des symboles en duplex intégral de sous-bande avec des signaux de référence de téléchargement sur la base d&#39;un état de protection de symboles de référence
WO2025072656A1 (fr) Fonctionnement en duplex intégral avec restrictions de faisceaux
WO2025029942A1 (fr) Mécanisme d&#39;établissement de liaison pour sélection de faisceau de liaison montante orientée vers une unité d&#39;émission/de réception sans fil
WO2025029941A1 (fr) Rapport de liaison/mappage entre interférence de liaison croisée mesurée et faisceaux de liaison montante/liaison descendante
WO2024211403A1 (fr) Commande de puissance de transmission de prach sur la base de mesures d&#39;une cellule
WO2023081067A1 (fr) Détermination de taille de transformée de fourier discrète et attribution de ressources dans le domaine fréquentiel
WO2025117569A1 (fr) Transmission opportuniste pour un équipement utilisateur fonctionnant en duplex intégral
EP4666799A1 (fr) Transmission prach associée à un mac ce et un ordre pdcch
WO2024233755A1 (fr) Procédés d&#39;association d&#39;une transmission apériodique de srs et d&#39;une mesure d&#39;interférence de liaison croisée (cli) dans des systèmes de duplex intégral sans chevauchement de sous-bande (sbfd)

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: 25719899

Country of ref document: EP

Kind code of ref document: A1