WO2020237650A1 - Amélioration de la gestion de faisceaux de liaison montante (ul) pour systèmes en duplex intégral - Google Patents

Amélioration de la gestion de faisceaux de liaison montante (ul) pour systèmes en duplex intégral Download PDF

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Publication number
WO2020237650A1
WO2020237650A1 PCT/CN2019/089600 CN2019089600W WO2020237650A1 WO 2020237650 A1 WO2020237650 A1 WO 2020237650A1 CN 2019089600 W CN2019089600 W CN 2019089600W WO 2020237650 A1 WO2020237650 A1 WO 2020237650A1
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WO
WIPO (PCT)
Prior art keywords
interference
resources
wireless node
rss
resource
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.)
Ceased
Application number
PCT/CN2019/089600
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English (en)
Inventor
Qiaoyu Li
Min Huang
Yu Zhang
Chao Wei
Liangming WU
Chenxi HAO
Yuwei REN
Hao Xu
Wanshi Chen
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Qualcomm Inc
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Qualcomm Inc
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Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to PCT/CN2019/089600 priority Critical patent/WO2020237650A1/fr
Priority to PCT/CN2020/093103 priority patent/WO2020239049A1/fr
Priority to US17/607,509 priority patent/US20220376856A1/en
Priority to CN202080038201.4A priority patent/CN113875277B/zh
Priority to EP20815371.8A priority patent/EP3977769A4/fr
Publication of WO2020237650A1 publication Critical patent/WO2020237650A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • 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
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06954—Sidelink beam training with support from third instance, e.g. the third instance being a base station

Definitions

  • aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for beam management.
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, broadcasts, etc. These wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc. ) .
  • available system resources e.g., bandwidth, transmit power, etc.
  • multiple-access systems examples include 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) systems, LTE Advanced (LTE-A) systems, 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, and time division synchronous code division multiple access (TD-SCDMA) systems, to name a few.
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • LTE-A LTE Advanced
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • a wireless multiple-access communication system may include a number of base stations (BSs) , which are each capable of simultaneously supporting communication for multiple communication devices, otherwise known as user equipments (UEs) .
  • BSs base stations
  • UEs user equipments
  • a set of one or more base stations may define an eNodeB (eNB) .
  • eNB eNodeB
  • a wireless multiple access communication system may include a number of distributed units (DUs) (e.g., edge units (EUs) , edge nodes (ENs) , radio heads (RHs) , smart radio heads (SRHs) , transmission reception points (TRPs) , etc.
  • DUs distributed units
  • EUs edge units
  • ENs edge nodes
  • RHs radio heads
  • SSRHs smart radio heads
  • TRPs transmission reception points
  • CUs central units
  • CNs central nodes
  • ANCs access node controllers
  • a BS or DU may communicate with a set of UEs on downlink channels (e.g., for transmissions from a BS or DU to a UE) and uplink channels (e.g., for transmissions from a UE to a BS or DU) .
  • New radio e.g., 5G NR
  • 5G NR is an example of an emerging telecommunication standard.
  • NR is a set of enhancements to the LTE mobile standard promulgated by 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 OFDMA with a cyclic prefix (CP) on the downlink (DL) and on the uplink (UL) .
  • CP cyclic prefix
  • NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • MIMO multiple-input multiple-output
  • Certain aspects are generally directed to a methodfor wireless communication by a first wireless node.
  • the method generally includes receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, monitoring one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, measuring, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of beams, generating an interference report based on the measurement, and transmitting the interference report to the second wireless node.
  • RS reference signal
  • Certain aspects are generally directed to a methodfor wireless communication by a first wireless node.
  • the method generally includes receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups, monitoring one or more interference RSs for each of the one or more interference RS resource groups, wherein the one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, measuring, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of beams, generating an interference report based on the measurement, and transmitting the interference report to the second wireless node.
  • RS reference signal
  • Certain aspects are generally directed to a methodfor wireless communication by a first wireless node.
  • the method generally includes receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, monitoring for one or more interference RSs via the one or more interference RS resources, determining, for each of the one or more interference RS resources, a reception beam based on the one or more interference RSs of the one or more interference RS resources, wherein the reception beam is one of a plurality of reception beams used to receive the one or more interference RSs, the reception beam having the lowest reception power of the plurality of reception beams, selecting a transmission beam corresponding to the reception beam, and transmitting signaling to the second wireless node via the transmission beam.
  • RS reference signal
  • Certain aspects are generally directed to a methodfor wireless communication by a first wireless node.
  • the method generally includes receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources, transmitting one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources, receiving, from the second wireless node, an indication of quasi-colocation (QCL) information after the transmission of the one or more interference RSs, the QCL information indicating first spatial relation information to use for transmissions via the one or more full-duplex interference resources and second spatial relation information to use for transmission via one or more half-duplex interference resources, and transmitting signaling to the second wireless node in accordance with the QCL information.
  • RS reference signal
  • QCL quasi-colocation
  • Certain aspects are generally directed to a methodfor wireless communication by a first wireless node.
  • the method generally includes transmitting, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, receiving an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of transmission beams, and scheduling full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • Certain aspects are generally directed to a method for wireless communication by a first wireless node.
  • the method generally includes transmitting, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups to be monitored, wherein one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, receiving an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of transmission beams, and scheduling full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • the apparatus generally includes a receiver configured to receive, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, a processing system configured to monitor one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, measure, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of beams; and generate an interference report based on the measurement, and a transmitter configured to transmit the interference report to the second wireless node.
  • RS reference signal
  • the apparatus generally includes a receiver configured to receive, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups, a processing system configured to monitor one or more interference RSs for each of the one or more interference RS resource groups, wherein the one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, measure, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of beams, and generate an interference report based on the measurement, and a transmitter configured to transmit the interference report to the second wireless node.
  • RS reference signal
  • the apparatus generally includes a receiver configured to receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, a processing system configured to monitor for one or more interference RSs via the one or more interference RS resources, determine, for each of the one or more interference RS resources, a reception beam based on the one or more interference RSs of the one or more interference RS resources, wherein the reception beam is one of a plurality of reception beams used to receive the one or more interference RSs, the reception beam having the lowest reception power of the plurality of reception beams, and select a transmission beam corresponding to the reception beam, and a transmitter configured to transmit signaling to the second wireless node via the transmission beam.
  • RS reference signal
  • the apparatus generally includes a receiver configured to receive, from a second wireless node, a reference signal (RS) resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources, a transmitter configured to transmit one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources, wherein the receiver is further configured to receive, from the second wireless node, an indication of quasi-colocation (QCL) information after the transmission of the one or more interference RSs, the QCL information indicating first spatial relation information to use for transmissions via the one or more full-duplex interference resources and second spatial relation information to use for transmission via one or more half-duplex interference resources, and wherein the transmitter is further configured to transmit signaling to the second wireless node in accordance with the QCL information.
  • RS reference signal
  • the apparatus generally includes a transmitter configured to transmit, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, a receiver configured to receive an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of transmission beams, and a processing system configured to schedule full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • the apparatus generally includes a transmitter configured to transmit, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups to be monitored, wherein one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, a receiver configured to receive an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of transmission beams, and a processing system configured to schedule full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • the apparatus generally includes means for receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, means for monitoring one or more interference RSs for each of the one or more interference RS resources, wherein the one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, means for measuring, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of beams, means for generating an interference report based on the measurement, and means for transmitting the interference report to the second wireless node.
  • RS reference signal
  • the apparatus generally includes means for receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups, means for monitoring one or more interference RSs for each of the one or more interference RS resource groups, wherein the one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, means for measuring, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of beams, means for generating an interference report based on the measurement, and means for transmitting the interference report to the second wireless node.
  • RS reference signal
  • the apparatus generally includes means for receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources, means for monitoring for one or more interference RSs via the one or more interference RS resources, means for determining, for each of the one or more interference RS resources, a reception beam based on the one or more interference RSs of the one or more interference RS resources, wherein the reception beam is one of a plurality of reception beams used to receive the one or more interference RSs, the reception beam having the lowest reception power of the plurality of reception beams, means for selecting a transmission beam corresponding to the reception beam, and means for transmitting signaling to the second wireless node via the transmission beam.
  • RS reference signal
  • the apparatus generally includes means for receiving, from a second wireless node, a reference signal (RS) resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources, means for transmitting one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources, means for receiving, from the second wireless node, an indication of quasi-colocation (QCL) information after the transmission of the one or more interference RSs, the QCL information indicating first spatial relation information to use for transmissions via the one or more full-duplex interference resources and second spatial relation information to use for transmission via one or more half-duplex interference resources, and means for transmitting signaling to the second wireless node in accordance with the QCL information.
  • RS reference signal
  • QCL quasi-colocation
  • the apparatus generally includes means for transmitting, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, means for receiving an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of transmission beams, and means for scheduling full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • the apparatus generally includes means for transmitting, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups to be monitored, wherein one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, means for receiving an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of transmission beams, and means for scheduling full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • RS reference signal
  • RS reference signal
  • RS reference signal
  • RS reference signal
  • QCL quasi-colocation
  • Certain are generally directed to a computer-readable medium having instructions stored thereon to cause a first wireless node to transmit, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resources to be monitored, wherein one or more interference RSs for each of the one or more interference RS resources are associated with a plurality of transmission beams, receive an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of transmission beams, and schedule full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • Certain are generally directed to a computer-readable medium having instructions stored thereon to cause a first wireless node to transmit, to a second wireless node, a reference signal (RS) resource configuration indicating one or more interference RS resource groups to be monitored, wherein one or more interference RSs for each of the one or more interference RS resource groups are associated with a plurality of transmission beams, receive an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of transmission beams, and schedule full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • RS reference signal
  • aspects of the present disclosure provide means for, apparatus, processors, and computer-readable mediums for performing the methods described herein.
  • the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
  • the following description and the appended drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed.
  • FIG. 1 is a block diagram conceptually illustrating an example telecommunications system, in accordance with certain aspects of the present disclosure.
  • FIG. 2 is a block diagram illustrating an example architecture of a distributed radio access network (RAN) , in accordance with certain aspects of the present disclosure.
  • RAN radio access network
  • FIG. 3 illustrates an example full-duplex wireless communication system.
  • FIG. 4 is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 5 is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 6A is an example full-duplex wireless communication system for transmission (Tx) beam refinement using beam sweeping for each sounding reference signal (SRS) resource, in accordance with certain aspects of the present disclosure.
  • Tx transmission
  • SRS sounding reference signal
  • FIG. 6B is a timing diagram illustrating example operations for beam management, in accordance with certain aspects of the present disclosure.
  • FIG. 7 is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 8 is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 9 is an example full-duplex wireless communication system for Tx beam refinement using beam-sweeping and groups SRS resources, in accordance with certain aspects of the present disclosure.
  • FIG. 10A is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 10B is a timing diagram illustrating example operations for beam management using beam correspondence, in accordance with certain aspects of the present disclosure.
  • FIG. 11 is a flow diagram illustrating example operations for wireless communication, in accordance with certain aspects of the present disclosure.
  • FIG. 12 is a wireless communication system for integrated access and backhaul, in accordance with certain aspects of the present disclosure.
  • FIG. 13 illustrates a communications device that may include various components configured to perform operations for the techniques disclosed herein.
  • aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for uplink (UL) beam management for full-duplex systems.
  • UL uplink
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • TD-SCDMA time division synchronous code division multiple access
  • network and “system” are often used interchangeably.
  • a CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA) , cdma2000, etc.
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • cdma2000 covers IS-2000, IS-95 and IS-856 standards.
  • a TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM) .
  • GSM Global System for Mobile Communications
  • An OFDMA network may implement a radio technology such as NR (e.g. 5G RA) , Evolved UTRA (E-UTRA) , Ultra Mobile Broadband (UMB) , IEEE 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDMA, etc.
  • NR e.g. 5G RA
  • E-UTRA Evolved UTRA
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS) .
  • LTE and LTE-A are releases of UMTS that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP) .
  • cdma2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2) .
  • New Radio is an emerging wireless communications technology under development in conjunction with the 5G Technology Forum (5GTF) .
  • NR access e.g., 5G NR
  • 5G NR may support various wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80 MHz or beyond) , millimeter wave (mmW) targeting high carrier frequency (e.g., 25 GHz or beyond) , massive machine type communications MTC (mMTC) targeting non-backward compatible MTC techniques, and/or mission critical targeting ultra-reliable low-latency communications (URLLC) .
  • eMBB enhanced mobile broadband
  • mmW millimeter wave
  • mMTC massive machine type communications MTC
  • URLLC ultra-reliable low-latency communications
  • These services may include latency and reliability requirements.
  • TTI transmission time intervals
  • QoS quality of service
  • these services may co-exist in the same subframe.
  • FIG. 1 illustrates an example wireless communication network 100 in which aspects of the present disclosure may be performed.
  • the wireless communication network 100 may be an NR system (e.g., a 5G NR network) .
  • the UE 120a has a beam management module that may be configured for UL beam management enhancement for full-duplex systems, according to aspects described herein.
  • the BS 110a has a beam management module that may be configured for UL beam management enhancement for full-duplex systems, according to aspects described herein.
  • the wireless communication network 100 may include a number of base stations (BSs) 110 and other network entities.
  • a BS may be a station that communicates with user equipments (UEs) .
  • Each BS 110 may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a Node B (NB) and/or a NB subsystem serving this coverage area, depending on the context in which the term is used.
  • NB Node B
  • AP access point
  • DU distributed unit
  • carrier or transmission reception point
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in wireless communication network 100 through various types of backhaul interfaces, such as a direct physical connection, a wireless connection, a virtual network, or the like using any suitable transport network.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular radio access technology (RAT) and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, etc.
  • a frequency may also be referred to as a carrier, a subcarrier, a frequency channel, a tone, a subband, etc.
  • 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.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or other types of cells.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG) , UEs for users in the home, etc. ) .
  • CSG Closed Subscriber Group
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • the BSs 110a, 110b and 110c may be macro BSs for the macro cells 102a, 102b and 102c, respectively.
  • the BS 110x may be a pico BS for a pico cell 102x.
  • the BSs 110y and 110z may be femto BSs for the femto cells 102y and 102z, respectively.
  • a BS may support one or multiple (e.g., three) cells.
  • Wireless communication network 100 may also include relay stations.
  • a relay station is a station that receives a transmission of data and/or other information from an upstream station (e.g., a BS or a UE) and sends a transmission of the data and/or other information to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that relays transmissions for other UEs.
  • a relay station 110r may communicate with the BS 110a and a UE 120r in order to facilitate communication between the BS 110a and the UE 120r.
  • a relay station may also be referred to as a relay BS, a relay, etc.
  • Wireless communication network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BS, pico BS, femto BS, relays, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different impact on interference in the wireless communication network 100.
  • macro BS may have a high transmit power level (e.g., 20 Watts) whereas pico BS, femto BS, and relays may have a lower transmit power level (e.g., 1 Watt) .
  • Wireless communication network100 may support synchronous or asynchronous operation.
  • the BSs may have similar frame timing, and transmissions from different BSs may be approximately aligned in time.
  • the BSs may have different frame timing, and transmissions from different BSs may not be aligned in time.
  • the techniques described herein may be used for both synchronous and asynchronous operation.
  • a network controller 130 may couple to a set of BSs and provide coordination and control for these BSs.
  • the network controller 130 may communicate with the BSs 110 via a backhaul.
  • the BSs 110 may also communicate with one another (e.g., directly or indirectly) via wireless or wireline backhaul.
  • the UEs 120 may be dispersed throughout the wireless communication network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, a Customer Premises Equipment (CPE) , a cellular phone, 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, an appliance, a medical device or medical equipment, a biometric sensor/device, a wearable device such as a smart watch, smart clothing, smart glasses, a smart wrist band, smart jewelry (e.g., a smart ring, a smart bracelet, etc.
  • CPE Customer Premises Equipment
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC machine-type communication
  • eMTC evolved MTC
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that may communicate with a BS, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • a network e.g., a wide area network such as Internet or a cellular network
  • Some UEs may be considered Internet-of-Things (IoT) devices, which may be narrowband IoT (NB-IoT) devices.
  • IoT Internet-of-Things
  • NB-IoT narrowband IoT
  • Certain wireless networks utilize orthogonal frequency division multiplexing (OFDM) on the downlink and single-carrier frequency division multiplexing (SC-FDM) on the uplink.
  • OFDM and SC-FDM partition the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly referred to as tones, bins, etc.
  • K orthogonal subcarriers
  • Each subcarrier may be modulated with data.
  • modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM.
  • the spacing between adjacent subcarriers may be fixed, and the total number of subcarriers (K) may be dependent on the system bandwidth.
  • the spacing of the subcarriers may be 15 kHz and the minimum resource allocation (called a “resource block” (RB) ) may be 12 subcarriers (or 180 kHz) . Consequently, the nominal Fast Fourier Transfer (FFT) size may be equal to 128, 256, 512, 1024 or 2048 for system bandwidth of 1.25, 2.5, 5, 10, or 20 megahertz (MHz) , respectively.
  • the system bandwidth may also be partitioned into subbands. For example, a subband may cover 1.08 MHz (e.g., 6 RBs) , and there may be 1, 2, 4, 8, or 16 subbands for system bandwidth of 1.25, 2.5, 5, 10 or 20 MHz, respectively.
  • the basic transmission time interval (TTI) or packet duration is the 1 ms subframe.
  • a subframe is still 1 ms, but the basic TTI is referred to as a slot.
  • a subframe contains a variable number of slots (e.g., 1, 2, 4, 8, 16, ...slots) depending on the subcarrier spacing.
  • the NR RB is 12 consecutive frequency subcarriers.
  • NR may support a base subcarrier spacing of 15 KHz and other subcarrier spacing may be defined with respect to the base subcarrier spacing, for example, 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc.
  • the symbol and slot lengths scale with the subcarrier spacing.
  • the CP length also depends on the subcarrier spacing.
  • NR may utilize OFDM with a CP on the uplink and downlink and include support for half-duplex operation using TDD. Beamforming may be supported and beam direction may be dynamically configured. MIMO transmissions with precoding may also be supported. In some examples, MIMO configurations in the DL may support up to 8 transmit antennas with multi-layer DL transmissions up to 8 streams and up to 2 streams per UE. In some examples, multi-layer transmissions with up to 2 streams per UE may be supported. Aggregation of multiple cells may be supported with up to 8 serving cells.
  • a scheduling entity (e.g., a BS) allocates resources for communication among some or all devices and equipment within its service area or cell.
  • the scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, subordinate entities utilize resources allocated by the scheduling entity.
  • Base stations are not the only entities that may function as a scheduling entity.
  • a UE may function as a scheduling entity and may schedule resources for one or more subordinate entities (e.g., one or more other UEs) , and the other UEs may utilize the resources scheduled by the UE for wireless communication.
  • a UE may function as a scheduling entity in a peer-to-peer (P2P) network, and/or in a mesh network.
  • P2P peer-to-peer
  • UEs may communicate directly with one another in addition to communicating with a scheduling entity.
  • two or more subordinate entities may communicate with each other using sidelink signals.
  • Real-world applications of such sidelink communications may include public safety, proximity services, UE-to-network relaying, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical mesh, and/or various other suitable applications.
  • a sidelink signal may refer to a signal communicated from one subordinate entity (e.g., UE1) to another subordinate entity (e.g., UE2) without relaying that communication through the scheduling entity (e.g., UE or BS) , even though the scheduling entity may be utilized for scheduling and/or control purposes.
  • the sidelink signals may be communicated using a licensed spectrum (unlike wireless local area networks, which typically use an unlicensed spectrum) .
  • a solid line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on the downlink and/or uplink.
  • a finely dashed line with double arrows indicates potentially interfering transmissions between a UE and a BS.
  • FIG. 2 illustrates example components of BS 110 and UE 120 (e.g., in the wireless communication network 100 of FIG. 1) , which may be used to implement aspects of the present disclosure.
  • antennas 252, processors 266, 258, 264, and/or controller/processor 280 of the UE 120 and/or antennas 234, processors 220, 230, 238, and/or controller/processor 240 of the BS 110 may be used to perform the various techniques and methods described herein.
  • the controller/processor 240 of the BS 110 has a beam management module that may be configured for uplink (UL) beam management enhancement for full-duplex systems, according to aspects described herein.
  • the controller/processor 280 of the UE 120 has a beam management module that may be configured for UL beam management enhancement for full-duplex systems, according to aspects described herein.
  • a transmit processor 220 may receive data from a data source 212 and control information from a controller/processor 240.
  • the control information may be for the physical broadcast channel (PBCH) , physical control format indicator channel (PCFICH) , physical hybrid ARQ indicator channel (PHICH) , physical downlink control channel (PDCCH) , group common PDCCH (GC PDCCH) , etc.
  • the data may be for the physical downlink shared channel (PDSCH) , etc.
  • the processor 220 may process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively.
  • the transmit processor 220 may also generate reference symbols, such as for the primary synchronization signal (PSS) , secondary synchronization signal (SSS) , and cell-specific reference signal (CRS) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, and/or the reference symbols, if applicable, and may provide output symbol streams to the modulators (MODs) 232a-232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM, etc. ) to obtain an output sample stream.
  • Each modulator may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
  • Downlink signals from modulators 232a-232t may be transmitted via the antennas 234a-234t, respectively.
  • the antennas 252a-252r may receive the downlink signals from the BS 110 and may provide received signals to the demodulators (DEMODs) in transceivers 254a-254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
  • Each demodulator may further process the input samples (e.g., for OFDM, etc. ) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all the demodulators 254a-254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information to a controller/processor 280.
  • a transmit processor 264 may receive and process data (e.g., for the physical uplink shared channel (PUSCH) ) from a data source 262 and control information (e.g., for the physical uplink control channel (PUCCH) from the controller/processor 280.
  • the transmit processor 264 may also generate reference symbols for a reference signal (e.g., for the sounding reference signal (SRS) ) .
  • the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the demodulators in transceivers 254a-254r (e.g., for SC-FDM, etc. ) , and transmitted to the base station 110.
  • the uplink signals from the UE 120 may be received by the antennas 234, processed by the modulators 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 the decoded control information to the controller/processor 240.
  • the controllers/processors 240 and 280 may direct the operation at the BS 110 and the UE 120, respectively.
  • the controller/processor 240 and/or other processors and modules at the BS 110 may perform or direct the execution of processes for the techniques described herein.
  • the memories 242 and 282 may store data and program codes for BS 110 and UE 120, respectively.
  • a scheduler 244 may schedule UEs for data transmission on the downlink and/or uplink.
  • a pair of UEs including a UE (hereinafter referred to as UE-1) receiving downlink signals (e.g., PDSCH data) and another UE (hereinafter referred to as UE-2) transmitting uplink signals (e.g., PUSCH data) may use the same frequency-time resources to communicate with a base station.
  • UE-1 UE
  • UE-2 UE
  • uplink signals e.g., PUSCH data
  • MU-MIMO multi-user multiple-input and multiple-output
  • a BS (also referred to herein as a gNB) may make pairing choices regarding which UEs may communicate simultaneously using the same frequency-time resources. There may be multiple choices of UE pairs, which may be scheduled by a BS. The BS may consider several factors when making pairing choices, such as the interference from uplink transmissions of UE-2 encountered at UE-1 during downlink reception. The BS may also consider the self-interference at the BS from the downlink transmissions to UE-1 encountered at the BS during the reception ofuplink transmission from UE-2.
  • the BS may schedule a UE-1 to monitor interference reference signal resources (e.g., a sounding reference signal (SRS) resources, channel state information reference signal (CSI-RS) resources, or any suitable reference signal resources) to allow the BS and the UEs to measure the UE-to-BS and UE-to-UE channel and interference properties during full-duplex communications.
  • the BS may also schedule different UE-2s to transmit signals in accordance with the configured different interference RS resources, such that the UE-1 may measure the interference from different UE-2s correspondingly.
  • the UE-1 s may be configured to feedback the measurement results to the BS, to help the BS further determine UE pairings, as described in more detail herein.
  • FIG. 3 illustrates an example full-duplex wireless communication system 300, in accordance with certain aspects of the present disclosure.
  • Beam management is important for the performance of higher frequencies, as beams may be relatively thin in such scenarios to provide enough beamforming gain.
  • Beam management is generally controlled by the BS 110.
  • the BS 110 may transmit multiple Tx beams (e.g., beams 302) to a UE 120a (e.g., UE-1) , followed by the UE 120a reporting the index of the strongest beams to be used for transmission of signals (e.g., PDSCH) .
  • Tx beams e.g., beams 302
  • UE 120a e.g., UE-1
  • signals e.g., PDSCH
  • the UE 120a may also determine one or more reception (Rx) beams (e.g., Rx beams 304) to be used for the reception of signals (e.g., PDSCH) from the BS 110.
  • Rx reception
  • UE 120b e.g., UE-2
  • Tx transmission
  • Tx beams e.g., Tx beams 306
  • the Tx beams of the BS 110 may be conveyed by multiple synchronization signal blocks (SSBs) or channel state information-reference signals (CSI-RSs) to the UE 120a.
  • the UE 120b e.g., UE-2
  • the UE 120b may be configured by the BS 110 to apply different Tx beams to different SRS resources for BS 110 to select the strongest Tx beam to be used for UL transmissions (e.g., PUSCH) , or transmit SRSs with the same Tx beam across multiple symbols for BS to refine its Rx beam 308.
  • UE 120a Rx beam and UE 120b Tx beam are not simply reliant on the BS-to-UE channel.
  • the UE 120a may determine a Rx beam to receive downlink signals (e.g., PDSCH data) form the BS 110 such that the interference from the UE 120b may be reduced, while the downlink signals from the BS may still be decoded.
  • the BS-to-UE and the UE-to-UE channels e.g., inter-UE interference
  • the Rx beam e.g., one of Rx beams 304
  • the UE 120b may determine the Tx beam to transmit uplink signals (e.g., PUSCH data) , such that the interference towards the UE 120a may be reduced, while the uplink signals received by the BS may still be decoded. Therefore, the BS-to-UE and the UE-to-UE channels may also considered when determining the Tx beam of the UE 120b. In a similar manner, when the BS determines its Rx beam, the BS may consider interference from the downlink transmission to UE 120a when receiving the uplink transmissions from the UE 120b. Certain aspects of the present disclosure are directed to techniques for Tx beam refinement in a full-duplex scenario.
  • uplink signals e.g., PUSCH data
  • FIG. 4 is a flow diagram illustrating example operations 400 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 400 may be performed, for example, by a first wireless node such as a BS (e.g., such as a BS 110 in the wireless communication network 100) .
  • Operations 400 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 240 of FIG. 2) .
  • the transmission and reception of signals by the BS in operations 400 may be enabled, for example, by one or more antennas (e.g., antennas 234 of FIG. 2) .
  • the transmission and/or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., controller/processor 240) obtaining and/or outputting signals.
  • the operations 400 may be performed by an integrated access or backhaul (IAB) node, as described in more detail herein.
  • IAB integrated access or backhaul
  • the operations 400 begin, at block 402, by the first wireless node transmitting, to a second wireless node (e.g., UE-1) , a reference signal (RS) resource configuration indicating one or more interference RS resources (e.g., sounding reference signal (SRS) resources) to be monitored.
  • a reference signal (RS) resource configuration indicating one or more interference RS resources (e.g., sounding reference signal (SRS) resources) to be monitored.
  • the one or more interference RSs for each of the one or more interference RS resources may be associated with a plurality of transmission beams.
  • the operations 400 may also include transmitting, to one of the one or more other wireless nodes (e.g., UE-2) , another RS resource configuration indicating the one or more interference RS resources for transmission of the one or more interference RSs for the one or more interference RS resources via the plurality of transmission beams.
  • the first wireless node receives an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of transmission beams, and at block 406, schedules full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • FIG. 5 is a flow diagram illustrating example operations 500 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 500 may be performed, for example, by a first wireless node, such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • a first wireless node such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • the operations 500 may be performed UE-1, as described in more detail herein.
  • the operations 500 may be complimentary operations by the UE to the operations 500 performed by the BS.
  • Operations 500 may be implemented as software componentsthatareexecutedandrunononeormoreprocessors(e.g., controller/processor 280 of FIG. 2) .
  • the transmission and reception of signals by the UE in operations 500 may be enabled, for example, by one or more antennas (e.g., antennas 252 of FIG. 2) .
  • the transmission and/or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller/processor 280) obtaining and/or outputting signals.
  • the first wireless node may be a child node, as described in more detail herein.
  • the operations 500 may begin, at block 502, by the first wireless node (e.g., UE-1) receiving, from a second wireless node (e.g., BS 110) , a reference signal (RS) resource configuration indicating one or more interference RS resources, and at block 504, monitoring one or more interference RSs for each of the one or more interference RS resources.
  • the one or more interference RSs for each of the one or more interference RS resources may be associated with a plurality of transmission beams.
  • the first wireless node measures, for the one or more interference RSs of each of the one or more interference RS resources, interference associated with at least one of the plurality of beams, at block 508, generates an interference report based on the measurement, and at block 510, transmits the interference report to the second wireless node.
  • the interference report may indicate one or more preferred beams of the plurality of transmission beams associated with a number of the one or more interference RS resources.
  • the indication may include at least one of one or more beam indices associated with the one or more preferred beams for each of the number of the one or more interference RS resources, or one or more interference RS resource indices associated with each of the number of the one or more interference RS resources corresponding to the one or more preferred beams.
  • the interference report may also indicate the one or more preferred beams for the number of the one or more interference RS resources by indicating an interference level associated with each of the one or more preferred beams of the plurality of transmission beams for the number of the one or more interference RS resources.
  • UE-1 may determine a quantity of the preferred beams for the number of the one or more interference RS resources. In other aspects, UE-1 may determine the quantity of the number of the one or more interference RS resources. The determination by UE-1 may be in accordance with at least one of the RS resource configuration or as predefined in a standard. In some cases, at least one of a quantity of preferred beams of the plurality of transmission beams for each of the number of the one or more interference RS resources may be equal to or less than the quantity of the associated plurality of beams, or may be only one. In some cases, the quantity of the number of the one or more interference RS resources may be equal to or less than the quantity of the one or more interference RS resources, or may be only one.
  • the RS resource configuration may also indicate one or more channel state information reference signal (CSI-RS) resources (e.g. non-zero power (NZP) CSI-RS resources) .
  • CSI-RS channel state information reference signal
  • NZP non-zero power
  • Each of the one or more CSI-RS resources may be associated with at least one of the one or more interference RS resources.
  • the first wireless node may also monitor at least one CSI-RS via each of the one or more CSI-RS resources, and measuring a receive signal parameter associated with the at least one CSI-RS for each of the one or more CSI-RS resources.
  • the interference report may indicate the receive signal parameter associated with the at least one CSI-RS for each of the one or more CSI-RS resources.
  • the interference report indicates one or more CSI-RS indices associated with the one or more interference RS resources.
  • the one or more interference RS resources may be a plurality of interference RS resources associated with the same CSI-RS resource, or each the one or more interference RS resources may be associated with a different one of the one or more CSI-RS resources. In some cases, the one or more interference RS resources may be one or more other CSI-RS resources that are different from the one or more CSI-RS resources, as described in more detail herein.
  • FIG. 6A is an example full-duplex wireless communication system 600 for Tx beam refinement using beam sweeping for each SRS resource, in accordance with certain aspects of the present disclosure. For instance, certain aspects are directed to Tx beam refinement using beam sweeping for each SRS resource.
  • UE-1 120a may be configured with multiple SRS resources 690, 692 to monitor, wherein each SRS resource is configured with transmit-beam-sweeping and each swept transmit beam has a beam index to facilitate feedback of the best transmit beam.
  • UE-1 may measure the interference for one or more (e.g., a single, a portion, or all) of the swept beams corresponding to each SRS resource.
  • the gNB may additionally configure CSI-RS (e.g., NZP-CSI-RS) resource (s) 694, 696 to UE-1 associated with the SRS resource (s) , and indicate to UE-1 that UE-1 should take the CSI-RS as signal and take SRS as interference to calculate signal-to-interference-plus-noise ratio (SINR) as a measurement metric to be fed back to the BS 110.
  • CSI-RS e.g., NZP-CSI-RS
  • SINR signal-to-interference-plus-noise ratio
  • UE-1 may report (e.g., via the interference report) the measurement result for one or multiple preferred beams for all interference RS resources (e.g., SRS resources) , or for each interference RS resource, one or multiple preferred beams, or report the measurement result for all swept beams regarding all interference RS resources.
  • the reporting of the measurement results may include one or any combination of (1) reporting of the beam indices of the preferred beams for a certain interference RS resource, (2) the interference RS resource indices of the involved interference RS resources, and (3) the CSI-RS resource indices associated with the involved interference RS resources.
  • multiple UE-2's may be configured to sweep beams using respective SRS resources 690, 692 (e.g., SRS resource #1 and SRS resource #2) , as illustrated in FIG. 6.
  • the gNB may also transmit CSI-RSs via a CSI-RS resource #1 694 associated with SRS resource #1 692 and via CSI-RS resource #2 696 associated with SRS resource #2 690.
  • the CSI-RS transmissions may occur prior to the SRS transmissions, after the SRS transmissions, or may occur simultaneously.
  • UE-1 may then report interference corresponding to one or multiple of the 1 st UE-2's swept Tx beams, as well as the 2 nd UE-2's swept Tx beams. For example, as described herein, UE-1 may consider the CSI-RS transmission from the gNB as the signal and the SRS of the swept beams as interference to calculate the SINR as a measurement metric, which may be fed back to the gNB (e.g., via the interference report described herein) for determining the UE pairing.
  • FIG. 6B is a timing diagram illustrating example operations 601 for beam management, in accordance with certain aspects of the present disclosure.
  • the BS 110 may send an RS resource configuration 608 to UE-1 indicating interference RS resources to monitor.
  • UE-1 may then receive the interference RSs 610 via the interference RS resources as transmitted via transmit beams by UE-2.
  • UE-1 may optionally receive CSI-RSs 612 from the BS 110, as illustrated.
  • UE-1 may generate an interference report indicating interference measurement results performed based on the interference RSs 610.
  • the interference report 618 may be transmitted to BS 110 for determining full duplex scheduling at block 620.
  • the BS 110 may then transmit quasi-co-location (QCL) information 622 to UE-2 indicating spatial parameters for UE-1 to determine spatial parameters at block 624, as described in more detail herein.
  • QCL quasi-co-location
  • UE-1 and UE-2 may then perform full-duplex communications 626, 628 based on the spatial parameters, as configured.
  • FIG. 7 is a flow diagram illustrating example operations 700 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 700 may be performed, for example, by a first wireless node such as a BS (e.g., such as a BS 110 in the wireless communication network 100) .
  • Operations 700 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 240 of FIG. 2) .
  • the transmission and reception of signals by the BS in operations 700 may be enabled, for example, by one or more antennas (e.g., antennas 234 of FIG. 2) .
  • the transmission and/or reception of signals by the BS may be implemented via a bus interface of one or more processors (e.g., controller/processor 240) obtaining and/or outputting signals.
  • the first wireless node may be an IAB node, as described in more detail herein.
  • the operations 700 begin, at block 702, by the first wireless node transmitting, to a second wireless node (e.g., UE-2) , a RS resource configuration indicating one or more interference RS resource groups (e.g., SRS resource groups) to be monitored.
  • a second wireless node e.g., UE-2
  • One or more interference RSs for each of the one or more interference RS resource groups may be associated with a plurality of transmission beams.
  • the first wireless node receives an interference report indicating, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of transmission beams, and at block 706, schedules full duplex communication involving the second wireless node and one or more other wireless nodes based at least in part on the interference report.
  • FIG. 8 is a flow diagram illustrating example operations 800 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 800 may be performed, for example, by a first wireless node, such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • a first wireless node such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • the operations 800 may be performed UE-1, as described in more detail herein.
  • the first wireless node may be child node, as described in more detail herein.
  • the operations 800 may be complimentary operations by the UE (e.g., UE-1) to the operations 800 performed by the BS.
  • Operations 800 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 280 of FIG. 2) .
  • the transmission and reception of signals by the UE in operations 800 may be enabled, for example, by one or more antennas (e.g., antennas 252 of FIG. 2) .
  • the transmission and/or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller/processor 280) obtaining and/or outputting signals.
  • the operations 800 may begin, at block 802, by the first wireless node by receiving, from a second wireless node (e.g., BS 110) , a RS resource configuration indicating one or more interference RS resource groups, and at block 804, monitoring one or more interference RSs for each of the one or more interference RS resource groups.
  • the one or more interference RSs for each of the one or more interference RS resource groups may be associated with a plurality of transmission beams.
  • the first wireless node measures, for the one or more interference RSs of each of the one or more interference RS resource groups, interference associated with at least one of the plurality of beams, at block 808, generates an interference report based on the measurement, and at block 810, transmits the interference report to the second wireless node.
  • the operations 700 and 800 are described in more detail with respect to FIG. 9.
  • FIG. 9 is an example full-duplex wireless communication system 900 for Tx beam refinement using beam-sweeping and interference RS resource groups 990, 992 (e.g., SRS resource groups) , in accordance with certain aspects of the present disclosure.
  • UE-1 may be configured with multiple interference RS resource groups 990, 992 (e.g., SRS resource groups) to monitor, each interference RS resource group being transmitted by the same UE-2.
  • the 1 st UE-2 may be configured with an interference RS resource group 992 including interference RS resources #1 to #5.
  • the 1 st UE-2 may perform beam sweeping using the interference RS resources #1 to #5.
  • the 2 nd UE-2 may be configured with an interference RS resource group 990 including interference RS resources #6-#10 and perform beam sweeping using the configured interference RS resource group.
  • the BS 110 may also transmit CSI-RSs using CSI-RS resource #1 994 associated with the interference RS resource group #1 992 and using CSI-RS resource #2 996 associated with the interference RS resource group #2 990.
  • UE-1 then monitors the resources for the CSI-RS and interference RS transmissions and measures the interference from a single, a portion of, or all of the interference RS resources to the CSI-RS transmission. For instance, as described herein, the BS 110 may configure CSI-RS resource (s) to UE-1 associated with the SRS resource group (s) .
  • UE-1 may consider the CSI-RS as signal and the SRS as interference to calculate SINR as a measurement metric to be reported. For example, UE-1 may report the measurement result for one or multiple preferred SRS resources, which may be based on one or any combination of (1) the SRS resource group indices comprising the preferred SRS resources, (2) the SRS resource indices of the preferred SRS resources, and (3) the CSI-RS resource indices associated with the SRS resource groups comprising the preferred SRS resources.
  • beam correspondence may be present between a selected receive beam and a transmit beam.
  • UE-2 may be configured to select a receive beam and use a corresponding transmit beam for transmissions, as described in more detail herein.
  • FIG. 10A is a flow diagram illustrating example operations 1000 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 1000 may be performed, for example, by a first wireless node, such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • a first wireless node such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • the operations 1000 may be performed UE-2, as described in more detail herein.
  • the first wireless node may be a donor node, as described in more detail herein.
  • Operations 1000 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 280 of FIG. 2) . Further, the transmission and reception of signals by the UE in operations 1000 may be enabled, for example, by one or more antennas (e.g., antennas 252 of FIG. 2) . In certain aspects, the transmission and/or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller/processor 280) obtaining and/or outputting signals.
  • processors e.g., controller/processor 280
  • the operations 1000 may begin, at block 1002, by the first wireless node receiving, from a second wireless node (e.g., BS 110) , a RS resource configuration indicating one or more interference RS resources, and at block 1004, monitoring for one or more interference RSs via the one or more interference RS resources.
  • the first wireless node may determine, for each of the one or more interference RS resources, a reception beam based on the one or more interference RSs of the one or more interference RS resources.
  • the reception beam may be one of a plurality of reception beams used to receive the one or more interference RSs, the reception beam having the lowest reception power of the plurality of reception beams.
  • the first wireless node selects a transmission beam corresponding to the reception beam (e.g., assuming correspondence between Rx and Tx beams) , and at block 1010, transmits signaling to the second wireless node via the transmission beam.
  • beam refinement may be performed based on multiple interference RS (e.g., SRS resources) resources, each interference RS resource being implemented with repetition.
  • the same beam may be repeated across multiple interference RS resources by one UE (e.g., UE-1) to allow for another UE (e.g., UE-2) to select the best Rx beam, as described with respect to FIG. 10A.
  • UE-2 may be configured with one or multiple SRS resources to monitor, each SRS resource being with repetition-on, as described herein.
  • Each SRS resource may be transmitted by a certain UE-1.
  • UE-1 may use the beam previously used for PUSCH transmission as the repeated beams.
  • UE-2 may use the repetitions to find a best Rx beam.
  • the best Rx beam may be the beam providing the lowest reception power at UE-2. Therefore, assuming correspondence between Tx and Rx beams, UE-2 may use a Tx beam associated with the determined Rx beam for any future PUSCH or SRS transmission associated with any of the UE-i's or SRS resources.
  • FIG. 10B is a timing diagram illustrating example operations 1001 for beam management using beam correspondence, in accordance with certain aspects of the present disclosure.
  • the BS 110 may transmit an RS resource configuration 1009 to UE-2 indicating one or more interference RS resources to be monitored.
  • UE-2 may then receive interference RSs 1011 transmitted by UE-1 via Tx beams with repetition, as described herein.
  • UE-2 may determine an Rx beam based on the one or more interference RSs, and at block 1016, select a Tx beam corresponding to the determined Rx beam, which may be used for full-duplex communications 1026 simultaneously with the full-duplex communications 1028 by UE-1.
  • Tx beam refinement using beam corresponding may be based on grouped SRS resources.
  • UE-2 may be configured with one or multiple SRS resources to monitor, at least a certain subset of the SRS resources being with repetition-on associated with the subset.
  • a certain subset of SRS resources may be transmitted by the same UE-1.
  • UE-1 may use the beam previously used for PUSCH transmission as the repeated beams, as described herein.
  • UE-2 may use the repetitions to find a best Rx beam. The best Rx beam may provide the lowest reception power at UE-2.
  • UE-2 may use a Tx beam associated with the determined Rx beam, for any future PUSCH or SRS transmission associated with any of the UE-l's or SRS resource subsets involved in the Rx and Tx beam determination.
  • the one or more interference RS resources described herein may be one or more full-duplex interference resources.
  • the RS resource configuration may also indicate one or more half-duplex interference RS resources.
  • UE-1 may be configured to indicate, via the interference report described herein, another interference associated with each beam of the plurality of transmission beams for the one or more interference RSs of each of the one or more half-duplex interference RS resources.
  • the BS 110 may transmit, to UE-2, an indication of quasi-colocation (QCL) information, the QCL information indicating first spatial relation information to use for transmissions via the one or more full-duplex interference resources and second spatial relation information to use for transmission via one or more half-duplex interference resources, and receive signaling from UE-2 in accordance with the QCL information, as described in more detail herein.
  • QCL quasi-colocation
  • the indication of QCL information may be in accordance with first spatial relation information for a UE-specific physical uplink control channel (PUCCH) transmission and may be composed by radio resource control (RRC) , medium access control-control element (MAC-CE) , or downlink control information (DCI) , or the indication of QCL information may be in accordance with second spatial relation information for a UE-specific physical uplink shared channel (PUSCH) transmission and may be composed by RRC, MAC-CE, or DCI.
  • RRC radio resource control
  • MAC-CE medium access control-control element
  • DCI downlink control information
  • FIG. 11 is a flow diagram illustrating example operations 1100 for wireless communication, in accordance with certain aspects of the present disclosure.
  • the operations 1100 may be performed, for example, by a first wireless node, such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • a first wireless node such as a UE (e.g., such as a UE 120 in the wireless communication network 100) .
  • the operations 1100 may be performed UE-2, as described in more detail herein.
  • the first wireless node may be a donor node, as described in more detail herein.
  • Operations 1100 may be implemented as software components that are executed and run on one or more processors (e.g., controller/processor 280 of FIG. 2) . Further, the transmission and reception of signals by the UE in operations 1100 may be enabled, for example, by one or more antennas (e.g., antennas 252 of FIG. 2) . In certain aspects, the transmission and/or reception of signals by the UE may be implemented via a bus interface of one or more processors (e.g., controller/processor 280) obtaining and/or outputting signals.
  • processors e.g., controller/processor 280
  • the operations 1100 may begin, at block 1102, by the first wireless node (e.g., UE-2) receiving, from a second wireless node (e.g., BS 110) , a RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources, and at block 1104, transmitting one or more interference RSs for each of the one or more full-duplex interference RS resources and the one or more half-duplex interference resources.
  • a RS resource configuration indicating one or more full-duplex interference RS resources and one or more half-duplex interference RS resources
  • the first wireless node receives, from the second wireless node, an indication of QCL information after the transmission of the one or more interference RSs, the QCL information indicating first spatial relation information to use for transmissions via the one or more full-duplex interference resources and second spatial relation information to use for transmission via one or more half-duplex interference resources, and at block 1108, transmits signaling to the second wireless node in accordance with the QCL information.
  • the spatial relation information (e.g., also referred to as PUCCH-SpatialRelationInfo configuration) configured by higher layer or MAC-CE may include up to two resource indices, one for transmission in UL-only Tx resource (e.g., also referred to as half-duplex resource) and the other for transmission in full-duplex Tx resource.
  • the selection of the RS for PUCCH Tx beam determination may be based on semi-static configured UL-only and full-duplex time-frequency resources.
  • the BS 110 may configure two SRS resources with beam sweeping to UE-2 for Tx beam refinement, one resource associated with UL-only transmission and the other resource associated with full-duplex transmission.
  • the BS 110 may configure one beam sweeping index as a Tx beam associated with the corresponding scenario (e.g., for the full-duplex and half-duplex resources) .
  • the gNB may configure two SRS resource groups to UE-2 for Tx beam refinement, one group associated with UL-only transmission and the other group associated with full-duplex transmission.
  • the BS 110 may configure one SRS resource as a Tx beam associated with the corresponding scenario.
  • the SRS resource indicator (SRI) indicated in downlink control information (DCI) scheduling of PUSCH may include at least two SRS resources, each providing the SpatialRelationInfo configuration for PUSCH transmission in UL-only and full-duplex resources respectively, when PUSCH transmission in a single slot includes a mixture of UL-only and full-duplex symbols.
  • the one or more interference RS resources may be SRS resources for SRS based monitoring, as described herein.
  • CSI-RS resource based interference monitoring may be implemented.
  • UE-1 and UE-2 may be configured by the BS 110 to transmit and/or monitor CSI-RS resources for interference measurement.
  • the BS 110 may configure UE-2 and UE-1 to transmit RSs in the CSI-RS resources.
  • the CSI-RS resources for interference measurement may be a single group, or multiple groups that are being separated from the CSI-RS resources transmitted by the BS for signal power measurement.
  • the RSs transmitted by UE-2 and UE-1 may be a newly defined RS, or may be SRS.
  • CSI-RS is used for interference measurement
  • corresponding reports discussed herein e.g., interference report
  • the RS for QCL information indication may be associated with CSI-RS for interference measurement, instead of being SRS.
  • the configuration of the interference monitoring and reporting may be semi-persistent, periodic, aperiodic, or dynamic.
  • the BS may also configure UE monitoring interference to carry out averaging of the measurement metric over multiple monitoring occasions.
  • FIG. 12 is a wireless communication system 1200 for integrated access and backhaul, in accordance with certain aspects of the present disclosure.
  • a backhaul link may exist between an IAB-node 1202 and an IAB child node 1204 or an IAB parent node 1206.
  • An access link may exist between an access UE 1208 and the IAB-node 1202. While examples provided herein have described techniques for beam management for a BS (e.g., gNB) and UEs (e.g., UE-1 and UE-2) to facilitate understanding, the techniques described herein may be applied to the IAB-node 1202, IAB child node 1204, and IAB parent node 1206.
  • BS e.g., gNB
  • UEs e.g., UE-1 and UE-2
  • the operations performed by the BS 110 as described herein may be performed by IAB-node 1202.
  • the operations performed by UE-1 and UE-2, as described herein, may be performed by the IAB parent node 1206 and the IAB child node 1204, or vice versa.
  • FIG. 13 illustrates a communications device 1300 that may include various components (e.g., corresponding to means-plus-function components) configured to perform operations for the techniques disclosed herein, such as the operations illustrated in FIG. 13.
  • the communications device 1300 includes a processing system 1302 coupled to a transceiver 1308.
  • the transceiver 1308 is configured to transmit and receive signals for the communications device 1300 via an antenna 1310, such as the various signals as described herein.
  • the processing system 1302 may be configured to perform processing functions for the communications device 1300, including processing signals received and/or to be transmitted by the communications device 1300.
  • the processing system 1302 includes a processor 1304 coupled to a computer-readable medium/memory 1312 via a bus 1306.
  • the computer-readable medium/memory 1312 is configured to store instructions (e.g., computer-executable code) that when executed by the processor 1304, cause the processor 1304 to perform the operations described herein.
  • computer-readable medium/memory 1312 stores code for receiving 1320, code for transmitting 1322, code for monitoring 1324, code for measuring 1326, code for determining/selecting 1328, and code for scheduling 1330.
  • the processor 1304 has circuitry configured to implement the code stored in the computer-readable medium/memory 1312.
  • the processor 1304 includes circuitry for circuitry for receiving 1331, circuitry for transmitting 1332, circuitry for monitoring 1334, circuitry for measuring 1336, circuitry for determining/selecting 1338, and circuitry for scheduling 1340.
  • the methods disclosed herein comprise one or more steps or actions for achieving the methods.
  • the method steps and/or actions may be interchanged with one another without departing from the scope of the claims.
  • the order and/or use of specific steps and/or actions may be modified without departing from the scope of the claims.
  • a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members.
  • “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) .
  • determining encompasses a wide variety of actions. For example, “determining” may include calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure) , ascertaining and the like. Also, “determining” may include receiving (e.g., receiving information) , accessing (e.g., accessing data in a memory) and the like. Also, “determining” may include resolving, selecting, choosing, establishing and the like.
  • the various operations of methods described above may be performed by any suitable means capable of performing the corresponding functions.
  • the means may include various hardware and/or software component (s) and/or module (s) , including, but not limited to a circuit, an application specific integrated circuit (ASIC) , or processor.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • PLD programmable logic device
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • an example hardware configuration may comprise a processing system in a wireless node.
  • the processing system may be implemented with a bus architecture.
  • the bus may include any number of interconnecting buses and bridges depending on the specific application of the processing system and the overall design constraints.
  • the bus may link together various circuits including a processor, machine-readable media, and a bus interface.
  • the bus interface may be used to connect a network adapter, among other things, to the processing system via the bus.
  • the network adapter may be used to implement the signal processing functions of the PHY layer.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • a user interface e.g., keypad, display, mouse, joystick, etc.
  • the bus may also link various other circuits such as timing sources, peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further.
  • the processor may be implemented with one or more general-purpose and/or special-purpose processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuitry that can execute software. Those skilled in the art will recognize how best to implement the described functionality for the processing system depending on the particular application and the overall design constraints imposed on the overall system.
  • the functions may be stored or transmitted over as one or more instructions or code on a computer readable medium.
  • Software shall be construed broadly to mean instructions, data, or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • Computer-readable media include both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • the processor may be responsible for managing the bus and general processing, including the execution of software modules stored on the machine-readable storage media.
  • a computer-readable storage medium may be coupled to a processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor.
  • the machine-readable media may include a transmission line, a carrier wave modulated by data, and/or a computer readable storage medium with instructions stored thereon separate from the wireless node, all of which may be accessed by the processor through the bus interface.
  • the machine-readable media, or any portion thereof may be integrated into the processor, such as the case may be with cache and/or general register files.
  • machine-readable storage media may include, by way of example, RAM (Random Access Memory) , flash memory, ROM (Read Only Memory) , PROM (Programmable Read-Only Memory) , EPROM (Erasable Programmable Read-Only Memory) , EEPROM (Electrically Erasable Programmable Read-Only Memory) , registers, magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrical Erasable Programmable Read-Only Memory
  • registers magnetic disks, optical disks, hard drives, or any other suitable storage medium, or any combination thereof.
  • the machine-readable media may be embodied in a computer-program product.
  • a software module may comprise a single instruction, or many instructions, and may be distributed over several different code segments, among different programs, and across multiple storage media.
  • the computer-readable media may comprise a number of software modules.
  • the software modules include instructions that, when executed by an apparatus such as a processor, cause the processing system to perform various functions.
  • the software modules may include a transmission module and a receiving module. Each software module may reside in a single storage device or be distributed across multiple storage devices.
  • a software module may be loaded into RAM from a hard drive when a triggering event occurs.
  • the processor may load some of the instructions into cache to increase access speed.
  • One or more cache lines may then be loaded into a general register file for execution by the processor.
  • any connection is properly termed a computer-readable medium.
  • the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) , or wireless technologies such as infrared (IR) , radio, and microwave
  • the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium.
  • Disk and disc include compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk, and disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.
  • computer-readable media may comprise non-transitory computer-readable media (e.g., tangible media) .
  • computer-readable media may comprise transitory computer-readable media (e.g., a signal) . Combinations of the above should also be included within the scope of computer-readable media.
  • certain aspects may comprise a computer program product for performing the operations presented herein.
  • a computer program product may comprise a computer-readable medium having instructions stored (and/or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein.
  • instructions for performing the operations described herein may comprise a computer-readable medium having instructions stored (and/or encoded) thereon, the instructions being executable by one or more processors to perform the operations described herein.
  • modules and/or other appropriate means for performing the methods and techniques described herein can be downloaded and/or otherwise obtained by a user terminal and/or base station as applicable.
  • a user terminal and/or base station can be coupled to a server to facilitate the transfer of means for performing the methods described herein.
  • various methods described herein can be provided via storage means (e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc. ) , such that a user terminal and/or base station can obtain the various methods upon coupling or providing the storage means to the device.
  • storage means e.g., RAM, ROM, a physical storage medium such as a compact disc (CD) or floppy disk, etc.
  • CD compact disc
  • floppy disk etc.
  • any other suitable technique for providing the methods and techniques described herein to a device can be utilized.

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Abstract

Certains aspects concernent de manière générale un procédé de communication sans fil au moyen d'un premier nœud sans fil. De façon générale, le procédé comprend les étapes consistant à : recevoir d'un second nœud sans fil une configuration de ressources de signal de référence (RS) indiquant une ou plusieurs ressources de RS d'interférence ; surveiller un ou plusieurs RS d'interférence associés à chacune desdites une ou plusieurs ressources de RS d'interférence, lesdits un ou plusieurs RS d'interférence associés à chacune desdites une ou plusieurs ressources de RS d'interférence étant associés à une pluralité de faisceaux de transmission ; pour lesdits un ou plusieurs RS d'interférence de chacune desdites une ou plusieurs ressources de RS d'interférence, mesurer une interférence associée à au moins un faisceau de la pluralité de faisceaux ; générer un rapport d'interférence sur la base de la mesure ; et transmettre le rapport d'interférence au second nœud sans fil.
PCT/CN2019/089600 2019-05-31 2019-05-31 Amélioration de la gestion de faisceaux de liaison montante (ul) pour systèmes en duplex intégral Ceased WO2020237650A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/CN2019/089600 WO2020237650A1 (fr) 2019-05-31 2019-05-31 Amélioration de la gestion de faisceaux de liaison montante (ul) pour systèmes en duplex intégral
PCT/CN2020/093103 WO2020239049A1 (fr) 2019-05-31 2020-05-29 Améliorations de gestion de faisceau de liaison descendante et de liaison montante pour duplex intégral
US17/607,509 US20220376856A1 (en) 2019-05-31 2020-05-29 Downlink and uplink beam management enhancements for full duplex
CN202080038201.4A CN113875277B (zh) 2019-05-31 2020-05-29 用于全双工的下行链路和上行链路波束管理增强的方法和装置
EP20815371.8A EP3977769A4 (fr) 2019-05-31 2020-05-29 Améliorations de gestion de faisceau de liaison descendante et de liaison montante pour duplex intégral

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