公开(公告)号：US11309953B2

公开(公告)日：2022-04-19

申请号：US17120931

申请日：2020-12-14

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Yuan Zhu ,  Elmar Wagner

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: A Multiple-Input-Multiple-Output (MIMO) antenna array configuration is described in one example comprising a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters, wherein the antenna elements and phase shifters form a plurality of antenna arrays, and coupled to the RF chains, and the number of antenna arrays is larger than the number of RF chains.

公开(公告)号：US12096257B2

公开(公告)日：2024-09-17

申请号：US17441639

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： David Neumann ,  Dawei Zhang ,  Ghaith N. Hattab ,  Haitong Sun ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Yeong-Sun Hwang ,  Yushu Zhang ,  Ziyang Ju

IPC: H04W24/08 ,  H04L1/00 ,  H04W72/232

CPC classification number: H04W24/08 ,  H04L1/0026 ,  H04W72/232

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing channel state information (CSI) reporting that includes a stale CSI report. Based at least in part on a CSI reporting configuration, a user equipment (UE) performs CSI measurements during a current reference time period, and generates one or more CSI reports including at least a stale CSI report. A stale CSI report is generated based at least in part on CSI measurements performed prior to the current reference time period. The UE further generates an uplink message including the one or more CSI reports, and transmits the uplink message to the base station under a reporting setting determined by the CSI reporting configuration.

公开(公告)号：US12041007B2

公开(公告)日：2024-07-16

申请号：US17441797

申请日：2021-01-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yeong-Sun Hwang ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Ismael Gutierrez Gonzalez

IPC: H04W56/00 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04L5/0053 ,  H04B7/0628

Abstract: Apparatuses, systems, and methods for counting active resources for UE processing complexity related capability. A cellular base station may comprise at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio. The cellular base station is configured to count a total number of active resources in a slot, wherein an active resource is defined for counting a number of CSI resources a UE needs to process simultaneously in a slot.

公开(公告)号：US11895637B2

公开(公告)日：2024-02-06

申请号：US17593588

申请日：2020-10-02

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yushu Zhang

IPC: H04W72/04 ,  H04W72/044 ,  H04B7/0408 ,  H04L5/00 ,  H04W16/28

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04L5/0035 ,  H04L5/0048 ,  H04W16/28

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.

公开(公告)号：US20240040513A1

公开(公告)日：2024-02-01

申请号：US18375965

申请日：2023-10-02

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Ismael Gutierrez Gonzalez ,  Ghaith N. Hattab ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunxuan Ye ,  Chunhai Yao ,  Oghenekome Oteri ,  Yeong-Sun Hwang

IPC: H04W52/18 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W52/18 ,  H04W72/23 ,  H04W72/51

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.

公开(公告)号：US20230337145A1

公开(公告)日：2023-10-19

申请号：US18136301

申请日：2023-04-18

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Ismael Gutierrez Gonzalez ,  Ghaith N. Hattab ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunxuan Ye ,  Chunhai Yao ,  Oghenekome Oteri ,  Yeong-Sun Hwang

IPC: H04W52/18 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W52/18 ,  H04W72/23 ,  H04W72/51

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.

公开(公告)号：US20230101423A1

公开(公告)日：2023-03-30

申请号：US17959012

申请日：2022-10-03

Applicant: Apple Inc.

Inventor： Zhibin Yu ,  Michael Ruder ,  Holger Neuhaus ,  Yeong-Sun Hwang ,  Bertram Gunzelmann

IPC: H04L5/00 ,  H04B7/08 ,  H04L25/03

Abstract: A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.

公开(公告)号：US20220322113A1

公开(公告)日：2022-10-06

申请号：US17438139

申请日：2021-03-31

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Andre Janssen ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yeong-Sun Hwang ,  Franz J. Eder

IPC: H04W24/04 ,  H04W24/08 ,  H04L5/00

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.

公开(公告)号：US20220311499A1

公开(公告)日：2022-09-29

申请号：US17593562

申请日：2020-05-15

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

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 Oven SSB may be measured in place of the SSB.

公开(公告)号：US11356151B2

公开(公告)日：2022-06-07

申请号：US17267603

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ismael Gutierrez Gonzalez ,  Ghaith N Hattab ,  Jie Cui ,  Yang Tang ,  Haijing Hu ,  Fangli Xu ,  Zhibin Wu ,  Yuqin Chen ,  Yeong-Sun Hwang

IPC: H04W92/18 ,  H04B7/0413 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) poos and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.