公开(公告)号：US20200153546A1

公开(公告)日：2020-05-14

申请号：US16747438

申请日：2020-01-20

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Tao Xu

IPC: H04L1/00 ,  H04L1/18 ,  H03M13/11

Abstract: Technology for a transmitter operable to perform data transmissions using low density parity check (LDPC) codes is disclosed. The transmitter can determine soft buffer information (Nsoft) for a receiver. The transmitter can determine a soft buffer partition per HARQ process (NIR) for the UE. The transmitter can obtain, for a transport block, a number of code block segments (C). The transmitter can select a shift size value (z). The transmitter can determine an amount of soft buffer available for the code block segments (Ncb) based on NIR, C, and z. The transmitter can encode the code block segments based on an LDPC coding scheme to obtain encoded parity bits. The transmitter can select a subset of the encoded parity bits based on the determined amount of soft buffer associated with the code block segments.

公开(公告)号：US10999010B2

公开(公告)日：2021-05-04

申请号：US16747438

申请日：2020-01-20

Applicant: Apple Inc.

Inventor： Ajit Nimbalker ,  Tao Xu

IPC: H03M13/00 ,  H04L1/00 ,  H04L1/18 ,  H03M13/11

Abstract: Technology for a transmitter operable to perform data transmissions using low density parity check (LDPC) codes is disclosed. The transmitter can determine soft buffer information (Nsoft) for a receiver. The transmitter can determine a soft buffer partition per HARQ process (NIR) for the UE. The transmitter can obtain, for a transport block, a number of code block segments (C). The transmitter can select a shift size value (z). The transmitter can determine an amount of soft buffer available for the code block segments (Ncb) based on NIR, C, and z. The transmitter can encode the code block segments based on an LDPC coding scheme to obtain encoded parity bits. The transmitter can select a subset of the encoded parity bits based on the determined amount of soft buffer associated with the code block segments.

公开(公告)号：US11664874B2

公开(公告)日：2023-05-30

申请号：US17431101

申请日：2020-02-18

Applicant: Apple Inc.

Inventor： Yang Tang ,  Tao Xu ,  Aida Vera Lopez

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04B5/00

CPC classification number: H04B7/0695 ,  H04B7/088 ,  H04L5/0051 ,  H04L5/0094 ,  H04B5/0025 ,  H04B7/0639

Abstract: Techniques for selecting the number of sounding reference signal (SRS) resources to be used by a user equipment (UE) operating in a wireless communications system are provided. The UE determines a degree of partial beam correspondence of the UE and compares the degree to a threshold amount of partial beam correspondence support of the UE. In response to the comparison, UE selects a number of sounding reference signal (SRS) resources to request from a network node and sends a SRS resource request message to the network node to request the selected number of SRS resources.

公开(公告)号：US11546861B2

公开(公告)日：2023-01-03

申请号：US17273122

申请日：2019-09-05

Applicant: Apple Inc.

Inventor： Yang Tang ,  Tao Xu ,  Jiwoo Kim

IPC: H04W52/14 ,  H04W76/15 ,  H04W52/16 ,  H04W52/24 ,  H04W52/34 ,  H04W52/50 ,  H04W72/14 ,  H04W88/06

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for determining dynamic power sharing in a dual-uplink E-UTRA (Evolved Universal Terrestrial Radio Access)—new radio dual connectivity (EN-DC) network, and/or other new radio (NR) related networks. Various embodiments describe how to determine or configure respective transmission (TX) power levels for LTE and NR uplink signals in the dual-uplink EN-DC network. The NR uplink signal may or may not be transmitted based on a certain timeline threshold and/or power scaling threshold. Other embodiments may be described and claimed.