The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Aug. 27, 2021
Systems and methods for reducing transmission data collision for dual subscriber dual active devices
Apple Inc., Cupertino, CA (US);
Lijie Zhang, Beijing, CN;
Alex Yee Kit Ho, Cupertino, CA (US);
Bing Zhao, Beijing, CN;
Kexin MA, San Diego, CA (US);
Qiang Miao, Beijing, CN;
Tao Huang, Beijing, CN;
Wen Zhao, Cupertino, CA (US);
Yanxia Wang, Beijing, CN;
Ying Zhang, Beijing, CN;
Zhiwei Wang, Beijing, CN;
APPLE INC., Cupertino, CA (US);
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.