公开(公告)号：US20220279521A1

公开(公告)日：2022-09-01

申请号：US17439330

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yushu Zhang ,  Yang Tang ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Huaning Niu ,  Haitong Sun ,  Chunhai Yao ,  Wenshu Zhang

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/12

Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide SCell activation. In one example, an SCell activation procedure may be extended by a duration based on cancelation of CSI-RS reception. In another example, a base station may use particular configuration parameters to avoid cancelation of CSI-RS reception. In yet another example, a UE and a base station may use particular information for a CSI-RS reception/transmission on an SCell that is being activated.

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：US20220210736A1

公开(公告)日：2022-06-30

申请号：US17442906

申请日：2020-04-02

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Hong He ,  Toufiqul Islam ,  Gregory Ermolaev

IPC: H04W52/02 ,  H04W72/12 ,  H04L41/0803

Abstract: Methods, systems, apparatus, and computer programs, for activating cross-slot scheduling in user equipment (UE) to achieve power savings. In one aspect, the method can include actions of generating, by an access node, an RRC communication including one or more parameters that, when processed by the UE, configures the UE to forego use of computing resources to buffer for potential PDSCH transmission for a predetermined amount of time, encoding, by the access node, the RRC communication for transmission to the UE, and causing, by the access node, one or more antennae to transmit the encoded RRC communication to the UE.

公开(公告)号：US20220174665A1

公开(公告)日：2022-06-02

申请号：US17671458

申请日：2022-02-14

Applicant: Apple Inc.

Inventor： Hong He ,  Dawei Zhang ,  Haitong Sun ,  Jia Tang ,  Pengkai Zhao ,  Wei Zeng ,  Wei Zhang ,  Yuchul Kim

IPC: H04W72/04 ,  H04W72/10 ,  H04W74/08

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to group transmissions into one or more groups, e.g., of various priority levels and/or types of transmissions. The UE may resolve collisions, e.g., according to one or more procedures described herein. The UE may transmit the transmissions according to the resolutions.

公开(公告)号：US20220174663A1

公开(公告)日：2022-06-02

申请号：US17651074

申请日：2022-02-15

Applicant: APPLE INC.

Inventor： Joonyoung Cho ,  Gang Xiong ,  Hong He ,  Lopamudra Kundu ,  Wook Bong Lee

IPC: H04W72/04 ,  H04L5/00

Abstract: Technology for a user equipment (UE) operable to encode a New Radio (NR) short duration physical uplink control channel (PUCCH) for transmission to a Next Generation NodeB (gNB) is disclosed. The UE can identify uplink control information (UCI) for the UE. The UE can multiplex, using frequency division multiplexing (FDM) at the UE, the UCI and a pseudo-random sequence associated with a demodulation reference signal (DMRS) onto a plurality of subcarriers in one or more physical resource blocks (PRBs) of one or more orthogonal frequency division multiplexing (OFDM) symbols. The UE can encode the UCI and the pseudo-random sequence associated with the DMRS multiplexed onto the plurality of subcarriers of the one or more OFDM symbols for transmission on the NR short duration PUCCH to the gNB.

公开(公告)号：US20220174592A1

公开(公告)日：2022-06-02

申请号：US17593564

申请日：2020-05-15

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang

IPC: H04W52/02 ,  H04L5/00

Abstract: A user equipment (UE) may perform sounding reference signal (SRS) switching by transmitting one or more SRS using a plurality of SRS resources of an SRS resource set configured for SRS switching according to a first combination of downlink (DL) and uplink (UL) antenna ports. For UE power saving, the UE may turn off one or more of the DL and UL antenna ports. The UE may then reconfigure the plurality of SRS resources of the SRS resource set for SRS switching according to a second combination of the DL and UL antenna ports. In response to a power saving message from a UE, a base station may generate SRS configuration information to configure an SRS resource set for SRS antenna switching based on a combination of active DL and UL antenna ports at the UE, and send the SRS configuration information to the UE.

公开(公告)号：US11316798B2

公开(公告)日：2022-04-26

申请号：US16267721

申请日：2019-02-05

Applicant: Apple Inc.

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

IPC: H04L12/911 ,  H04L47/74 ,  H04L41/0668 ,  H04W72/04 ,  H04L41/0677 ,  H04L43/08 ,  H04W76/18 ,  H04W24/10 ,  H04W36/00 ,  H04L43/10 ,  H04L43/16 ,  H04L41/0893

Abstract: Systems, apparatuses, and methods for control signaling of beam failure detection are disclosed. A beam pair link may be comprised of multiple bandwidth parts (BWPs) or component carriers (CCs). In one embodiment, a beam failure detection reference signal (BFD RS) may be configured, with subsequent BFD RS instances defining a BFD RS periodicity. A BFD periodicity for monitoring the BFD RS may be configured to be less than, or equal or greater than the BFD RS periodicity. A beam failure may be declared if a minimum number of BFD RS instances, either within the BFD periodicity, or nearest the BFD periodicity if no instances fall within the BFD periodicity, fall below a predetermined threshold. The BFD periodicity and BFD RS may be configured for all BWPs/CCs, a subset of BWPs/CCs, or each individual BWP/CC.

公开(公告)号：US11304157B2

公开(公告)日：2022-04-12

申请号：US16625131

申请日：2018-06-20

Applicant: Apple Inc.

Inventor： Alexei Vladimirovich Davydov ,  Avik Sengupta ,  Gang Xiong ,  Hong He ,  Yongjun Kwak ,  Debdeep Chatterjee ,  Dae Won Lee

IPC: H04J11/00 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: A user equipment (UE) can include processing circuitry configured to decode synchronization information within a synchronization signal (SS) block, the SS block received within a SS burst set and occupying a subset of a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols within a slot. At least one of the symbols in the subset coincides with a pre-defined symbol location associated with a demodulation reference signal (DM-RS) of a physical downlink shared channel (PDSCH). A synchronization procedure can be performed with a next generation Node-B (gNB) based on the synchronization information within the SS block. The DM-RS can be detected within the slot, where the DM-RS starts at a symbol location that is shifted from the pre-defined symbol location and following the subset of symbols. Downlink data received via the PDSCH is decoded based on the detected DM-RS.

公开(公告)号：US11304073B2

公开(公告)日：2022-04-12

申请号：US16997051

申请日：2020-08-19

Applicant: Apple Inc.

Inventor： Konstantinos D. Dimou ,  Gang Xiong ,  Seunghee Han ,  Hong He

IPC: H04W24/02 ,  H04W48/12 ,  H04W24/08 ,  H04W74/08 ,  H04W74/00 ,  H04W36/08

Abstract: Embodiments of a User Equipment (UE) to operate in accordance with a physical random access channel (PRACH) are disclosed herein. The UE may comprise hardware processing circuitry to determine a coverage enhancement category for the UE based on downlink channel statistics related to reception of downlink signals at the UE from an Evolved Node-B (eNB) and an uplink-downlink imbalance parameter related to uplink reception at the eNB. The hardware processing circuitry may be further to select, for use in a coverage enhancement mode, a PRACH preamble from a set of candidate PRACH preambles based on the determined coverage enhancement category for the UE. In some embodiments, at least some of the candidate PRACH preambles may span a different number of sub-frames.