公开(公告)号：US20220167408A1

公开(公告)日：2022-05-26

申请号：US17440673

申请日：2020-11-05

Applicant: Apple Inc.

Inventor： Anthony LEE ,  Seau S. LIM ,  Youn Hyoung HEO ,  Salvatore TALARICO ,  Yongjun KWAK ,  Bishwarup MONDAL ,  Carlos H. ALDANA

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/19

Abstract: Techniques are provided for determining and processing uplink listen before talk (LBT) failures, including the determination of a consistent and systematic LBT failure associated with uplink transmissions in new radio (NR) operating over unlicensed spectrum. For example, a user equipment (UE) identifies a plurality of transmission occasions to be performed by the UE over the unlicensed spectrum. The UE further performs a plurality of listen before talk (LBT) procedures associated with respective ones of the plurality of transmission occasions to be performed by the UE, and tracks a number of LBT failures during the performance of the plurality of LBT procedures, wherein a LBT failure occurs due to a channel used for the associated LBT procedure being busy or when an LBT backoff is still running from a previous LBT failure. The UE further implements a recovery procedure in response to the LBT failures exceeding a predetermined threshold within a predetermined time period.

公开(公告)号：US20220085939A1

公开(公告)日：2022-03-17

申请号：US17420634

申请日：2020-01-11

Applicant: Apple Inc.

Inventor： Bishwarup MONDAL ,  Avik SENGUPTA ,  Debdeep CHATTERJEE ,  Alexei Armando DAVYDOV

IPC: H04L5/00 ,  H04L1/18 ,  H04W72/04

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) in a wireless communication system using an unlicensed spectrum. The UE includes a processor circuitry and radio front end circuitry coupled with the processor circuitry. The processor circuitry is configured to determine UE processing time for a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission, and an additional processing time corresponding to the first and the second PDSCH transmissions. The processor circuitry is configured to process a hybrid automatic repeat and request acknowledgement (HARQ-ACK) assessment information for inclusion in a subframe on a physical uplink control channel (PUCCH) following the UE processing time and the additional processing time. The radio front end circuitry is configured to receive the first and the second PDSCH transmissions from a base station, and transmit the HARQ-ACK assessment information on the PUCCH to the base station.

公开(公告)号：US20200351868A1

公开(公告)日：2020-11-05

申请号：US16934663

申请日：2020-07-21

Applicant: Apple Inc.

Inventor： Yushu ZHANG ,  Yuan ZHU ,  Wenting CHANG ,  Sungho MOON ,  Bishwarup MONDAL

IPC: H04W72/04 ,  H04B17/318 ,  H04B7/06 ,  H04W36/00 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/12

Abstract: An apparatus of a user equipment (UE) may include a memory and one or more processors operatively coupled to the memory. The processors may process a scheduling trigger to provide channel state information (CSI) and beam information using extra-large physical uplink shared channel (xPUSCH). The processing device may also generate a reporting message comprising CSI and beam information. The processing device may then encode xPUSCH data to include the reporting message.

公开(公告)号：US20210410165A1

公开(公告)日：2021-12-30

申请号：US17282931

申请日：2019-10-04

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Bishwarup MONDAL ,  Guotong WANG ,  Yushu ZHANG

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: Embodiments of the present disclosure provide for transmission of physical uplink channels and signals scheduled for simultaneous transmission. Other embodiments may be described and claimed.

公开(公告)号：US20210399855A1

公开(公告)日：2021-12-23

申请号：US17292312

申请日：2019-11-07

Applicant: Apple Inc.

Inventor： Alexei DAVYDOV ,  Seunghee HAN ,  Gang XIONG ,  Guotong WANG ,  Bishwarup MONDAL ,  Daewon LEE ,  Yushu ZHANG ,  Yang TANG

IPC: H04L5/00

Abstract: Embodiments of the present disclosure provide for uplink and downlink beam management for partial beam correspondence user equipments. Other embodiments may be described and claimed.

公开(公告)号：US20210328738A1

公开(公告)日：2021-10-21

申请号：US17259102

申请日：2019-08-09

Applicant: Apple Inc.

Inventor： Bishwarup MONDAL ,  Salvatore TALARICO ,  Seau S. LIM ,  Dae Won LEE ,  Jeongho JEON

IPC: H04L5/00 ,  H04W72/12

Abstract: An apparatus of a network (NW) configured to: encode a new radio (NR) Discovery Reference Signal (DRS) transmission, the NR DRS transmission including a synchronization signal block (SSB) and channel state information (CSI) reference signal (RS) (CSI-RS). The apparatus is further configured to configure the NW to transmit the NR DRS transmission. The RS-CSI may be a fragmented RS-CSI including a first fragmented portion and a second fragmented portion, where the apparatus is configured to encode a symbol of the NR DRS transmission to comprise the first fragmented portion, a symbol of the SSB, and the second fragmented portion, where the symbol of the SSB is encoded on a physical broadcast channel (PBCH) portion of the NR DRS transmission.

公开(公告)号：US20220077911A1

公开(公告)日：2022-03-10

申请号：US17417302

申请日：2020-01-18

Applicant: Apple Inc.

Inventor： Victor SERGEEV ,  Alexei DAVYDOV ,  Bishwarup MONDAL ,  Gregory MOROZOV ,  Dmitry DIKAREV

IPC: H04B7/06 ,  H04B7/0456

Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.

公开(公告)号：US20230217267A1

公开(公告)日：2023-07-06

申请号：US18116496

申请日：2023-03-02

Applicant: Apple Inc.

Inventor： Fatemeh HAMIDI-SEPEHR ,  Debdeep CHATTERJEE ,  Bishwarup MONDAL ,  Sergey PANTELEEV ,  Toufiqul ISLAM ,  Yushu ZHANG ,  Alexei Vladimirovich DAVYDOV

IPC: H04W16/28 ,  H04W76/20 ,  H04W72/23

CPC classification number: H04W16/28 ,  H04W72/23 ,  H04W76/20

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for multi-transmission reception point (TRP) reception, the processing circuitry is to decode radio resource control (RRC) signaling. The RRC signaling includes configuration information configuring a plurality of transmission configuration indication (TCI) states. A media access control (MAC) control element (CE) is decoded, where the MAC CE indicates multiple active TCI states of the configured plurality of TCI states. Multiple received beams are determined using the multiple active TCI states. Downlink information is decoded, where the downlink information originates from multiple TRPs and is received via the determined multiple receive beams associated with the multiple active TCI states.

公开(公告)号：US20230089326A1

公开(公告)日：2023-03-23

申请号：US17993511

申请日：2022-11-23

Applicant: Apple Inc.

Inventor： Victor SERGEEV ,  Alexei DAVYDOV ,  Bishwarup MONDAL ,  Gregory MOROZOV ,  Dmitry DIKAREV

IPC: H04B7/06 ,  H04B7/0456

Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.

公开(公告)号：US20220132326A1

公开(公告)日：2022-04-28

申请号：US17439777

申请日：2020-05-13

Applicant: Apple Inc.

Inventor： Guotong WANG ,  Yushu ZHANG ,  Alexei DAVYDOV ,  Bishwarup MONDAL ,  Gang XIONG

IPC: H04W16/28 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: Techniques are provided for selecting a spatial relation for a physical uplink shared channel (PUSCH) transmission by a user equipment (UE) operating in a multi-transmission reception point (TRP) multi-antenna panel environment. For example, the UE prepares a PUSCH transmission intended for a first TRP of a plurality of TRPs available to the UE in the wireless network, and determines a first antenna port group of a plurality of antenna port groups of the UE that is more directionally aligned with the first TRP than other antenna port groups of the plurality of antenna port groups. The UE further transmits the PUSCH transmission to the first TRP via the first antenna port group using a default spatial relation used for a physical uplink control channel (PUCCH) communication with the first TRP via the first antenna port group.