公开(公告)号：US20210359742A1

公开(公告)日：2021-11-18

申请号：US17287186

申请日：2019-10-30

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Yushu Zhang ,  Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04B7/06 ,  H04B7/0417 ,  H04W24/10 ,  H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.

公开(公告)号：US11178012B2

公开(公告)日：2021-11-16

申请号：US16123722

申请日：2018-09-06

Applicant: Apple Inc.

Inventor： Honglei Miao ,  Jeongho Jeon ,  Alexei Davydov ,  Hong He ,  Debdeep Chatterjee ,  Joonyoung Cho ,  Daewon Lee ,  Gang Xiong

IPC: H04L12/24 ,  H04W16/32 ,  H04W76/28 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W88/02

Abstract: The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed. The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.

公开(公告)号：US11177904B2

公开(公告)日：2021-11-16

申请号：US16478813

申请日：2018-03-22

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Alexei Davydov ,  Guotong Wang

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04

Abstract: Described is an apparatus of an Evolved Node-B (eNB) operable to communicate with a User Equipment (UE) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a presence of a Phase Tracking Reference Signal (PT-RS) and a density of the PT-RS. The second circuitry may be operable to process the PT-RS. The second circuitry may also be operable to process a transmission in a Multi-User Superposition Transmission (MUST) operation in accordance with the PT-RS.

公开(公告)号：US11153126B2

公开(公告)日：2021-10-19

申请号：US16303759

申请日：2017-06-21

Applicant: Apple Inc.

Inventor： Hong He ,  Gang Xiong ,  Seunghee Han ,  Hwan-Joon Kwon ,  Alexei Davydov

IPC: H04W76/27 ,  H04W72/04 ,  H04W4/06 ,  H04L5/14 ,  H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04L1/18

Abstract: An apparatus can receive or transmit parameters for a sounding reference signal (SRS) transmission configuration as an uplink (UL)/downlink (DL) configuration of a serving cell. A time division duplex (TDD) operation with a plurality of component carriers (CCs) can be enabled/generated based on the parameters and at least one component carriers being reserved for the UL transmission or having a higher priority than a physical channel transmission such as a physical uplink shared channel (PUSCH) transmission or a physical uplink control channel (PUCCH) transmission.

公开(公告)号：US11146435B2

公开(公告)日：2021-10-12

申请号：US16408063

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Gang Xiong ,  Alexei Davydov ,  Alexey Khoryaev ,  Mikhail S. Shilov ,  Seung Hee Han ,  Yushu Zhang ,  Joonyoung Cho

IPC: H04L27/26 ,  H04W52/14 ,  H04L5/00 ,  H04W72/04

Abstract: Technology for a user equipment (UE) configured for communication of sounding reference signal (SRS) resources is disclosed. The UE can decode a radio resource control (RRC) signal indicating an SRS to transmit with a physical uplink control channel (PUCCH), wherein the PUCCH and the SRS are quasi co located (QCLed) based on a spatial received parameter. The UE can encode an SRS for transmission using the spatial received parameter. The UE can encode uplink control information (UCI) for transmission in the PUCCH using the spatial received parameter. The UE can have a memory interface configured to send to a memory the spatial received parameter.

公开(公告)号：US11121768B2

公开(公告)日：2021-09-14

申请号：US16349960

申请日：2018-01-04

Applicant: APPLE INC.

Inventor： Dae Won Lee ,  Seunghee Han ,  Gregory V. Morozov ,  Alexei Davydov ,  Hong He

IPC: H04J3/00 ,  H04B7/26 ,  H04L27/26 ,  H04W56/00

Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) 5 including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).

公开(公告)号：US11121743B2

公开(公告)日：2021-09-14

申请号：US16500937

申请日：2018-05-04

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Gang Xiong ,  Xinyue Zheng

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/02 ,  H04B10/61 ,  H04L5/00 ,  H02J7/00

Abstract: An apparatus is configured to be employed within a base station. The apparatus comprises baseband circuitry which includes a radio frequency (RF) interface and one or more processors. The one or more processors are configured to arrange phase tracking reference signal (PT-RS) resource elements (REs) and data REs as an arrangement for a transmission based on one or more diversity factors. The one or more diversity factors include a time domain and a frequency domain. The one or more processors are also configured to provide the transmission having the PT-RS REs to the RF interface for transmission to a user equipment (UE) device.

公开(公告)号：US20210258056A1

公开(公告)日：2021-08-19

申请号：US17313452

申请日：2021-05-06

Applicant: Apple Inc.

Inventor： Alexei Davydov

IPC: H04B7/06 ,  H04L5/00 ,  H04W8/08 ,  H04W16/28 ,  H04W64/00 ,  H04W72/04

Abstract: Techniques for employing QCL (Quasi Co-Location) signaling for beamforming management are discussed. One example embodiment can comprise a baseband processor of a User Equipment (UE). The baseband processor comprises one or more processors to make a determination whether a first set of RS (Reference Signal) APs (Antenna Ports) are QCL-ed (Quasi Co-Located) with a second set of RS APs with respect to one or more large-scale channel properties and to select a set of receiving parameters for the second set of RS APs based on the one or more spatial receiver parameters. The one or more large-scale channel properties comprise one or more spatial receiver parameters. The first set of RS APs are distinct from the second set of RS APs.

公开(公告)号：US11063652B2

公开(公告)日：2021-07-13

申请号：US16487155

申请日：2018-03-05

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Dae Won Lee ,  Guotong Wang

IPC: H04B7/06 ,  H04B1/7143 ,  H04B7/0413 ,  H04B7/08 ,  H04J13/00 ,  H04L5/00 ,  H04W48/16 ,  H04W72/04 ,  H04W72/08 ,  H04B1/715

Abstract: Techniques discussed herein can facilitate maintenance and/or recovery of BPL(s) (Beam Pair Link(s)). Various embodiments can employ aspects discussed herein can one or more of enable interference randomization for beam/link recovery signal(s) or reduce the overhead of UL (Uplink) beam management RS (Reference Signal(s)). Various embodiments can comprise UE(s) (User Equipment(s)) that can receive configuration signaling configuring the UE(s) to one or more of apply interference randomization to a beam/link recovery signal and/or generate a SR (Scheduling Request) channel for beam maintenance having reduced overhead and can transmit the beam/link recovery signal and/or SR channel. Additional embodiments can comprise gNB(s) (next Generation NodeB(s)) that can configure UE(s) for beam maintenance and/or recovery techniques discussed herein.

公开(公告)号：US20210212082A1

公开(公告)日：2021-07-08

申请号：US17269307

申请日：2019-09-24

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Gang Xiong ,  Alexei Davydov

IPC: H04W72/12 ,  H04B7/06 ,  H04W76/18 ,  H04W76/15

Abstract: Techniques discussed herein can facilitate determination of spatial (and/or beam) assumption(s) for PDSCH (Physical Downlink Shared Channel) transmitted after a BFR (Beam Failure Recovery) request but before TCI (Transmission Configuration Information) reconfiguration. One example embodiment can be an apparatus configured to: generate a BFR request that indicates a new candidate beam; process a CORESET (Control Resource Set)-BFR of a set of configured CORESETs, wherein the CORESET-BFR comprises a response to the BFR request; determine a spatial assumption for a first PDSCH based on the BFR request, wherein the first PDSCH is scheduled by a first CORESET of the set of configured CORESETs, wherein the first CORESET is different than the CORESET-BFR, wherein the first PDSCH is scheduled before a TCI state is one of reconfigured, reactivated, or re-indicated; and process the first PDSCH based on the determined spatial assumption for the first PDSCH.