公开(公告)号：US20240188067A1

公开(公告)日：2024-06-06

申请号：US17758609

申请日：2021-08-27

Applicant: APPLE INC.

Inventor： Lijie Zhang ,  Alex Yee Kit Ho ,  Bing Zhao ,  Kexin Ma ,  Qiang Miao ,  Tao Huang ,  Wen Zhao ,  Yanxia Wang ,  Ying Zhang ,  Zhiwei Wang

IPC: H04W72/12 ,  H04W72/044 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W72/044 ,  H04W88/06

Abstract: Systems and methods for reducing collisions of transmission data for a first subscriber (e.g., a voice subscriber) with transmission data for a second subscriber (e.g., a data subscriber) at a dual sim dual active (DSDA) user equipment (UE) are described herein. A DSDA UE may be configured to implement a modified skipUplinkTxDynamic feature that avoids collisions by buffering transmission data of the data subscriber and sending a (later) scheduling request (SR) for a grant for that data. A DSDA UE may regulate data subscriber transmissions to avoid a transmission duration for the voice subscriber. A DSDA UE may reduce certain transmissions for a voice subscriber (subject to a block error rate (BLER) threshold for the voice subscriber) to lower the probability of collision. A DSDA UE may operate a data subscriber and a voice subscriber in the same cell to avoid collisions due to RF tuning and/or relative slot overlap.

公开(公告)号：US10728903B2

公开(公告)日：2020-07-28

申请号：US15128264

申请日：2016-01-08

Applicant: APPLE INC.

Inventor： Zhu Ji ,  Yanxia Wang ,  Bing Zhao ,  Johnson O. Sebeni

IPC: H04W72/08 ,  H04W28/18 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04

Abstract: Described herein are apparatuses, systems and methods for adaptive downlink scheduling and link adaptation. The methods including, at a base station connected to a user equipment (“UE”), determining an initial modulation and coding scheme (“MCS”) for a plurality of subframes to be transmitted to the UE, wherein each MCS relates to a coding rate value for the subframes, determining an MCS pattern for the plurality of subframes based on the initial MCS, wherein an MCS for one of the subframes has a higher coding rate value than the initial MCS, and transmitting the plurality of subframes to the UE according to the MCS pattern.

公开(公告)号：US20230074893A1

公开(公告)日：2023-03-09

申请号：US17839684

申请日：2022-06-14

Applicant: Apple Inc.

Inventor： Lijie Zhang ,  Hailong Yang ,  Kexin Ma ,  Alex Yee Kit Ho ,  Feng Zhang, SR. ,  Bing Zhao ,  Ying Zhang ,  Zhiwei Wang ,  Qiang Miao

IPC: H04W52/36 ,  H04W72/04

Abstract: An electronic device receives an indication of a number of physical resource blocks and subcarrier spacing of at least a portion of a transmission channel and determines a dynamic transmission bandwidth, or receives an indication of a modulation coding scheme of the transmission channel and determines a modulation order. The electronic device transmits, using a transmitter, a signal over at least the portion of the transmission channel based on the dynamic transmission bandwidth being less than or equal to a threshold bandwidth, or the modulation order not corresponding to an additional power backoff, using a first power based on a maximum output power capacity of the electronic device and a maximum power reduction. Otherwise, the electronic device transmits the signal over at least the portion of the transmission channel at a second power based on the maximum output power capacity, the maximum power reduction and the additional power backoff.