公开(公告)号：US12192038B2

公开(公告)日：2025-01-07

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gregory Morozov ,  Guotong Wang ,  Dae Won Lee ,  Gang Xiong ,  Sameer Pawar ,  Jie Zhu

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26

Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.

公开(公告)号：US12068996B2

公开(公告)日：2024-08-20

申请号：US17442502

申请日：2020-04-17

Applicant: Apple Inc.

Inventor： Avik Sengupta ,  Alexei Davydov ,  Sameer Pawar ,  Guotong Wang ,  Gregory Morozov

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04L27/2602 ,  H04L27/26035 ,  H04L27/261 ,  H04L27/2615

Abstract: Methods, systems, apparatus, and computer programs, for providing uplink control information to an access node. In one aspect, the method can include actions of determining, by a UE, a time-domain orthogonal cover code (OCC) for a PUCCH message of a UE to multiplex the PUCCH transmission with one or more PUCCH messages from one or more other UEs, and encoding, by the UE, the PUCCH message for transmission by the UE using the OCC.

公开(公告)号：US12058542B2

公开(公告)日：2024-08-06

申请号：US17293429

申请日：2019-11-11

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Hua Li ,  Manasa Raghavan ,  Yushu Zhang ,  Jie Cui

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0048

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for performing Beam Failure Detection (BFD), and in particular, for performing Synchronization Signal Block (SSB) based BFD and/or Channel State Information Reference Signal (CSI-RS) based BFD. Disclosed embodiments include quasi co-location (QCL) and use case restrictions for SSB for BFD and Physical Downlink Control Channel (PDCCH), transition period handling for BFD, and implicit configuration SSB for BFD. Other embodiments may be described and/or claimed.

公开(公告)号：US20240214109A1

公开(公告)日：2024-06-27

申请号：US17420407

申请日：2020-01-08

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Gang Xiong ,  Yujian Zhang ,  Guotong Wang

IPC: H04L1/00

CPC classification number: H04L1/0025 ,  H04L1/0004

Abstract: A user equipment wireless communication device in a wireless communication environment receives a signal from the network that includes a radio network temporary ID. From the radio network temporary ID, the user equipment is capable of determining whether a phase tracking reference signal is present based on the radio network temporary ID. If any of these are identified by the radio network temporary ID, then the user equipment determines that a phase tracking reference signal is present. After the user equipment has determined that the phase tracking reference signal is present, the user equipment can then determine which phase tracking reference signal antenna ports are to be used based on the values of the transmitted precoding matrix indicator value and the transmit rank indicator.

公开(公告)号：US11757512B2

公开(公告)日：2023-09-12

申请号：US17199901

申请日：2021-03-12

Applicant: Apple Inc.

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

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0408 ,  H04L1/1812 ,  H04W76/27 ,  H04L1/00 ,  H04W72/23 ,  H04L1/1607

CPC classification number: H04B7/0626 ,  H04B7/0408 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0048 ,  H04W72/23 ,  H04W76/27 ,  H04L1/0031 ,  H04L1/1671 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0057

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with an Evolved Node-B (eNB) on a wireless network. The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a Downlink (DL) transmission carrying one or more Phase Tracking Reference Signal (PT-RSes). The second circuitry may be operable to generate an Uplink (UL) transmission carrying a Layer Indicator (LI) based at least on a number of PT-RS Antenna Ports (APs) associated with the PT-RSes.

公开(公告)号：US11641299B2

公开(公告)日：2023-05-02

申请号：US16645360

申请日：2018-09-06

Applicant: Apple Inc.

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

IPC: H04L27/26 ,  H04L1/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/04

Abstract: A user equipment (UE) can include processing circuitry configured to decode downlink control information (DCI) from a base station, the DCI including a modulation coding scheme (MCS) index and physical uplink shared channel (PUSCH) allocation. A demodulation reference signal (DM-RS) is encoded for transmission to the base station within a plurality of DM-RS symbols based on the PUSCH allocation. A phase tracking reference signal (PT-RS) time domain density is determined based on the MCS index and a number count of the DM-RS symbols for the DM-RS transmission. The PT-RS is encoded for transmission using a plurality of PT-RS symbols based on the determined time domain density. The plurality of symbols includes one or both of front-loaded DM-RS symbols and additional DM-RS symbols.

公开(公告)号：US11553440B2

公开(公告)日：2023-01-10

申请号：US16502477

申请日：2019-07-03

Applicant: Apple Inc.

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

IPC: H04W52/32 ,  H04W52/14 ,  H04W88/02

Abstract: Embodiments of the present disclosure provide for mechanisms to enable full-power uplink transmission. Other embodiments may be described and claimed.

公开(公告)号：US11405911B2

公开(公告)日：2022-08-02

申请号：US17105057

申请日：2020-11-25

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04L5/00

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for time domain resource allocations in wireless communications systems. Disclosed embodiments include time-domain symbol determination and/or indication using a combination of higher layer and downlink control information signaling for physical downlink shared channel and physical uplink shared channel; time domain resource allocations for mini-slot operations; rules for postponing and dropping for multiple mini-slot transmission; and collision handling of sounding reference signals with semi-statically or semi-persistently configured uplink transmissions. Other embodiments may be described and/or claimed.

公开(公告)号：US11388730B2

公开(公告)日：2022-07-12

申请号：US16483252

申请日：2018-03-23

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Wook Bong Lee ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Daewon Lee ,  Seung Hee Han ,  Alexei Davydov ,  Guotong Wang

IPC: H04W72/08 ,  H04B17/318 ,  H04W76/19 ,  H04W72/04

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 select one or more recovery channels based on one or more recovery factors; determine a beam recovery frame structure using the selected one or more recovery channels and based at least partially on beam correspondence capabilities; and provide the selected one or more recovery channels and the determined beam recovery frame structure to the RF interface for transmission to a user equipment (UE) device.

公开(公告)号：US20220190939A1

公开(公告)日：2022-06-16

申请号：US17418092

申请日：2020-01-02

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Yingzhu Zhao ,  Guotong Wang ,  Victor Sergeev ,  Alexei Davydov

IPC: H04B17/336 ,  H04W24/10

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for framework of layer 1 signal-to-interference plus noise ratio (L1-SINR) measurement and reporting based on channel measurement and interference measurement. The channel measurement is performed on a first set of reference signal (RS) resources, and the interference measurement is performed on a second set of RS resources. Each of the second set of RS resources is mapped to each of the first set of RS resources. The L1-SINR is determined from a first RS resource of the first set of RS resources and a second RS resource of the send set of RS resources, where the first RS resource is mapped to the second RS resource. A message including the L1-SINR is generated and transmitted to the access node.