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.

公开(公告)号：US20220038224A1

公开(公告)日：2022-02-03

申请号：US17357544

申请日：2021-06-24

Applicant: APPLE INC.

Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Yang Tang

IPC: H04L5/00 ,  H04W72/04

Abstract: Techniques for grouping multiple serving component carriers (CCs) are disclosed. In one example, a frequency separation that defines a frequency range from a lower bound frequency to a higher bound frequency for each CC group of a plurality of CC groups may be determined, wherein a difference between the lower bound frequency and the higher bound frequency of each CC group may be equal to the frequency separation. A frequency of a first CC from a collection of CCs may be determined. The first CC may be assigned to a first CC group, of the plurality of CC groups, wherein the first CC group may have a frequency range that includes the frequency of the first CC.

公开(公告)号：US20210368565A1

公开(公告)日：2021-11-25

申请号：US15734516

申请日：2019-11-04

Applicant: Apple Inc.

Inventor： Zhibin Wu ,  Clive E. Rodgers ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Hong He ,  Longda Xing ,  Murtaza A. Shikari ,  Sethuraman Gurumoorthy ,  Sree Ram Kodali ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Vijay Venkataraman ,  Yuqin Chen

IPC: H04W76/15 ,  H04W76/14 ,  H04W76/18

Abstract: Peer devices may wirelessly communicate with each other over a bidirectional sidelink logical channel (LCH) through an established bidirectional sidelink radio bearer. An initiating device of the peer devices may dynamically select a logical channel ID for establishing a fully bidirectional or semi-bidirectional SLRB. At least two alternative sidelink radio resource control (PC5-RRC) procedures may ensure the SLRB parameters are configured correctly in the established logical channel. The procedures also allow the network to configure a limited SLRB which is used to couple the SLRB configuration in the direction in which limited traffic (e.g. feedback information such as robust header compression feedback and/or status reports) is transmitted.

公开(公告)号：US20210297114A1

公开(公告)日：2021-09-23

申请号：US17175231

申请日：2021-02-12

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunxuan Ye ,  Chunhai Yao ,  Oghenekome Oteri ,  Wei Zhang ,  Jia Tang ,  Tianyan Pu ,  Pengkai Zhao

IPC: H04B7/022 ,  H04L5/00

Abstract: In an example method, a user equipment (UE) device determines one or more component carriers available to the UE device for at least one of transmitting or receiving data over a wireless network. The UE device transmits, to the wireless network, for each component carrier, an indication whether the component carrier supports at least one of transmitting or receiving data according to a multi-transmission and receiving points (multi-TRP) communication protocol.

公开(公告)号：US11122580B2

公开(公告)日：2021-09-14

申请号：US16407143

申请日：2019-05-08

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hong He ,  Ralf Matthias Bendlin ,  Jong-Kae Fwu ,  Seunghee Han ,  Huaning Niu ,  Yushu Zhang ,  Yuan Zhu

IPC: H04W72/08 ,  H04B7/26 ,  H04W72/04 ,  H04L5/14 ,  H04L1/18 ,  H04L5/00

Abstract: Embodiments of an Evolved Node-B (eNB), User Equipment (UE), and methods for flexible duplex communication are generally described herein. The eNB may transmit a downlink control information (DCI) block to the UE during a group of time-division duplex (TDD) sub-frames. The eNB may further receive an uplink control information (UCI) block from the UE during the group of TDD sub-frames. A first candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and an uplink control portion. A second candidate flexible duplex format for the TDD sub-frames may include a downlink control portion and may exclude uplink control portions.

公开(公告)号：US11070407B2

公开(公告)日：2021-07-20

申请号：US16465121

申请日：2018-03-20

Applicant: APPLE INC.

Inventor： Jeongho Jeon ,  Huaning Niu ,  Hong He ,  Hwan-Joon Kwon

IPC: H04L27/00 ,  H04L5/00 ,  H04L1/18 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: Technology for a user equipment (UE), operable for an uplink partial subframe transmission on an unlicensed carrier is disclosed. The UE can select one or more uplink (UL) partial subframe configurations based on one or more prospective lengths of a listen before talk (LBT) period, wherein each prospective length of the LBT period provides a prospective starting time. The UE can encode data for each of the one or more UL partial subframe configurations to form one or more UL partial subframe configuration encodings. The UE can identify an actual LBT period. The UE can select one of the one or more UL partial subframe configuration encodings for UL transmission of the data on the unlicensed carrier based on the actual LBT period and a corresponding prospective starting time.