Scheduling request (SR) management for split data radio bearer (DRB) in a wireless wide area network (WWAN)

US11956808B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Akshay Kumar · Gothan, IN
• Arnaud Meylan · Bois-Colombes, FR
• Leena Zacharias · San Jose, US
• Michel Chauvin · San Diego, US
• Vishal Dalmiya · San Diego, US
• Ambarish Tripathi · San Diego, US
• Shailesh Maheshwari · San Diego, US
• Sathyanarayanan Raghunathan · Herndon, US
• Baojun Lu · San Diego, US

Key dates

• Filing date: Sep 23, 2021
• Grant date: Apr 9, 2024
• Expiry date: Jan 30, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W72/52
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for managing scheduling requests (SRs) in a user equipment (UE) that supports a split data radio bearer (DRB). In some aspects, the UE may trigger a first SR for a first communication link and a second SR for a second communication link in response to determining that a first amount of data in the UE data buffer is greater than a first threshold. The UE may transmit the first SR to a first base station (BS) via the first communication link. Prior to transmission of the second SR, the UE may determine whether a second amount of data in the UE data buffer is less than a second threshold. The UE may cancel the second SR in response to the second amount of data in the UE data buffer being less than the second threshold.