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公开(公告)号:EP3892028A1
公开(公告)日:2021-10-13
申请号:EP20848783.5
申请日:2020-02-12
Applicant: Apple Inc.
Inventor: YAO, Chunhai , SUN, Haitong , ZHANG, Yushu , ZENG, Wei , ZHANG, Dawei , KIM, Yuchul , HE, Hong , YANG, Weidong , YE, Chunxuan , OTERI, Oghenekome , GUTIERREZ GONZALEZ, Ismael , HATTAB, Ghaith N. , CUI, Jie , TANG, Yang , HU, Haijing , XU, Fangli , WU, Zhibin , CHEN, Yuqin , HWANG, Yeong-Sun
IPC: H04W24/10
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公开(公告)号:WO2022205053A1
公开(公告)日:2022-10-06
申请号:PCT/CN2021/084359
申请日:2021-03-31
Applicant: APPLE INC. , ZHANG, Yushu
Inventor: JANSSEN, Andre , SUN, Haitong , ZENG, Wei , ZHANG, Dawei , HWANG, Yeong-Sun , EDER, Franz J.
IPC: H04W74/00
Abstract: Apparatuses, systems, and methods for beam failure recovery based on a unified TCI framework. A UE may receive, from a base station, a configuration for a BFR procedure for a CCG. The CCG may include at least two CCs and the UE may periodically receive, from the base station, at least a first BFD RS and a first CBD RS in a first CC included in the CCG. The UE may detect, based on the first BFD RS, a beam failure in at least the first CC and send, to the base station, a BFRQ. The BFRQ may include a candidate beam selected based on at least the first CBD RS and may be sent via a PRACH or MAC CE. The UE may receive, from the base station, a BFR response and apply the candidate beam to the first CC and at least one additional CC of the CCG.
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公开(公告)号:WO2022067843A1
公开(公告)日:2022-04-07
申请号:PCT/CN2020/119777
申请日:2020-10-02
Applicant: APPLE INC.
Inventor: SUN, Haitong , YE, Chunxuan , ZHANG, Dawei , HE, Hong , NIU, Huaning , OTERI, Oghenekome , YE, Sigen , ZENG, Wei , YANG, Weidong , HWANG, Yeong-Sun , ZHANG, Yushu
Abstract: A cell performs beam management operations for a user equipment (UE). The cell transmits a first group of multiple reference signals via a first transmission reception point (TRP) to a user equipment (UE), transmits a second group of multiple reference signals via a second different TRP to the UE, receives an indication that the UE has selected a first beam associated with one of the multiple reference signals of the first group and a second beam associated with one of the multiple reference signals of the second group and transmits downlink data to the UE using the first beam and the second beam.
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公开(公告)号:WO2021227015A1
公开(公告)日:2021-11-18
申请号:PCT/CN2020/090523
申请日:2020-05-15
Applicant: APPLE INC. , ZHANG, Yushu
Inventor: YAO, Chunhai , YE, Chunxuan , ZHANG, Dawei , XU, Fangli , HU, Haijing , SUN, Haitong , HE, Hong , ZENG, Wei , YANG, Weidong , HWANG, Yeong-Sun , KIM, Yuchul , CHEN, Yuqin
IPC: H04W24/00
Abstract: Systems and methods for control signaling for beam searching latency reduction are disclosed herein. A g Node B (gNB) may determine that a first Synchronization Signal Block (SSB) and a second SSB are to be spatially correlated and may select a first transmit (Tx) beam to transmit the first SSB and a second Tx beam to transmit the second SSB accordingly. The gNB may also transmit a correlation message including spatial correlation information to help a UE determine the spatial correlation. The UE may measure the first SSB on a first subset of a plurality of receive (Rx) beams and measure the second SSB on a second subset of the plurality of Rx beams, and select an Rx beam for one or both. In some embodiments, channel state information reference signals (CSI-RS) that are quasi co-located (QCLed) with a given SSB may be measured in place of the SSB.
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公开(公告)号:WO2021159347A1
公开(公告)日:2021-08-19
申请号:PCT/CN2020/074943
申请日:2020-02-12
Applicant: APPLE INC. , ZHANG, Yushu
Inventor: SUN, Haitong , ZENG, Wei , ZHANG, Dawei , GONZALEZ, Isamael Gutierrez , HATTAB, Ghaith N. , KIM, Yuchul , HE, Hong , YANG, Weidong , YE, Chunxuan , YAO, Chunhai , OTERI, Oghenekome , HWANG, Yeong-Sun
IPC: H04W52/38
Abstract: A method for operating user equipment (UE) includes generating, by the UE, a transmit precoding matrix indicator (TPMI) list including one or more TPMIs selected from a set of available TPMIs stored at a base station (BS). Data indicative of the TPMI list is transmitted to the BS. An index of the TPMI list is transmitted to the BS. Downlink control information (DCI) is received from the BS including an indication of at least one TPMI from the TPMI list based on the index. Uplink data is transmitted to the BS on a physical uplink shared channel (PUSCH) using the at least one TPMI.
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公开(公告)号:WO2021159316A1
公开(公告)日:2021-08-19
申请号:PCT/CN2020/074901
申请日:2020-02-12
Applicant: APPLE INC. , YAO, Chunhai
Inventor: SUN, Haitong , YANG, Weidong , ZHANG, Yushu , ZENG, Wei , ZHANG, Dawei , KIM, Yuchul , HE, Hong , YE, Chunxuan , OTERI, Oghenekome , HATTAB, Ghaith N. , GUTIERREZ GONZALEZ, Ismael , CUI, Jie , TANG, Yang , HWANG, Yeong-Sun
IPC: H04W72/04 , H04B7/0456
Abstract: A base station and wireless communication (UE) may perform type II CSI-RS port selection based at least on partial reciprocity between an uplink path and a downlink path between the base station and the UE. The base station may identify dominant signal paths between the base station and the UE, based on measurements performed during uplink transmissions, and may transmit, to the UE, corresponding information indicative of CSI measurement and reporting configuration that may include a single measurement resource or multiple measurement resources. Each measurement resource may include multiple-port CSI-RS ports. The UE may indicate, to the base station, selection of a measurement resource when multiple measurement resources are configured, and may also report layer independent or layer common selection of a subset of CSI-RS ports included in the indicated single measurement resource or multiple measurement resources. Further enhancements include frequency domain compression enhancement and dynamic codebook parameter reconfiguration.
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公开(公告)号:WO2020259838A1
公开(公告)日:2020-12-30
申请号:PCT/EP2019/067135
申请日:2019-06-27
Applicant: APPLE INC.
Inventor: JANSSEN, Andre , HWANG, Yeong-Sun , NEUHAUS, Holger , GUNZELMANN, Bertram , RAAF, Bernhard , XU, Qing , YU, Zhibin
Abstract: The disclosure relates to methods and devices for improving TX beam forming. A method according to a first approach is for determining an RX beam pattern for a user equipment, UE. A method according to a second approach is for polarization control in TX beam forming of a user equipment, UE. A method according to a third approach is for user equipment, UE, TX beam forming based on UE beam correspondence. A method according to a fourth approach is for re-acquiring a beam pair between a user equipment, UE, and a base station based on grouping information.
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28.
公开(公告)号:EP4376321A3
公开(公告)日:2024-08-28
申请号:EP24169515.4
申请日:2020-02-12
Applicant: Apple Inc.
Inventor: YAO, Chunhai , YE, Chunxuan , ZHANG, Dawei , HATTAB, Ghaith N. , SUN, Haitong , HE, Hong , GUTIERREZ GONZALEZ, Ismael , OTERI, Oghenekome , ZENG, Wei , YANG, Weidong , HWANG, Yeong-Sun , KIM, Yuchul , ZHANG, Yushu
CPC classification number: H04B7/0626 , H04W24/10 , H04W8/24 , H04B7/0628 , H04B7/0482 , H04B7/0478 , H04L5/001 , H04L5/0023 , H04L5/0091 , H04L5/0057 , H04L5/0048 , H04L25/0224
Abstract: A user equipment (UE) transmits concurrent channel state information (CSI) processing capability information to a base station. The capability information can take various forms, and is intended to constrain the base station in the types of CSI requests that can be made to the UE. For example, the UE may indicate different CSI processing capabilities for intra-CC and inter-CC cases and/or for different codebook types. The UE may also specify supported combinations of codebook types for concurrent CSI reporting. The UE may also specify maximum resources or weighting factors for different codebook types. The UE may further restrict the rank information it provides and use a priority rule for "dropping" CSI report data due to payload size restrictions. The base station may direct, or the UE may implement, improved utilization of CSI resources that are shared for multiple concurrent CSI reports. Minimum time requirements for CSI reporting may also be relaxed.
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公开(公告)号:EP4316083A1
公开(公告)日:2024-02-07
申请号:EP21933714.4
申请日:2021-03-31
Applicant: Apple Inc.
Inventor: SUN, Haitong , OZER, Gokhan , HWANG, Yeong-Sun , ZHANG, Yushu , ZENG, Wei , ZHANG, Dawei , RAGHAVAN, Manasa , CUI, Jie , YANG, Weidong , AMINZADEH GOHARI, Amir , HATTAB, Ghaith N. , TANG, Yang , GUTIERREZ GONZALEZ, Ismael , JU, Ziyang
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公开(公告)号:EP4278756A1
公开(公告)日:2023-11-22
申请号:EP21918517.0
申请日:2021-01-15
Applicant: Apple Inc.
Inventor: HWANG, Yeong-Sun , ZHANG, Dawei , ZENG, Wei , ZHANG, Yushu , GONZALEZ, Ismael Gutierrez , SUN, Haitong
IPC: H04W72/00
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