公开(公告)号：US11811525B2

公开(公告)日：2023-11-07

申请号：US17251572

申请日：2018-07-24

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Pavankumar Veerashetty ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  Jian Tao ,  Rahul Jammula

IPC: H04L1/00 ,  H04L47/25 ,  H04W28/02

CPC classification number: H04L1/0003 ,  H04L47/25 ,  H04W28/0289 ,  H04W28/0273

Abstract: The present disclosure provides techniques for rate adaptation under congestion and latency constraints. The approaches described herein focus on aspects of latency, reliability, and power consumption instead of the traditional aspect of throughput. In an example, a method for rate adaptation is disclosed. The method may include determining whether to transmit a new packet or a retry packet. The method may also include reducing a maximum rate for a rate search in response to determining to transmit the retry packet. The method may further include transmitting the retry packet based on the reduced maximum rate.

公开(公告)号：US20200228934A1

公开(公告)日：2020-07-16

申请号：US16741410

申请日：2020-01-13

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Jian Tao

IPC: H04W4/06 ,  H04W24/08

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for low latency multicast wireless communication. In one aspect, multicast wireless communication may be used in a wireless local area network (WLAN) to distribute audio or video information from an access point to multiple stations. To maintain reliability and low latency, techniques of this disclosure include link training, link adaptation, and blind retries using different transmission rates. In some implementations, a station that detects a link deterioration (such as a loss of data or change in channel quality) can send an unsolicited action frame to the access point. Using the techniques in this disclosure, the access point and the station(s) may maintain the reliability of the multicast wireless communication.