US 12,430,199 B2
Flow control between peripheral component interconnect express devices
Santhosh Reddy Akavaram, Hyderabad (IN); Prakhar Srivastava, Lucknow (IN); Sai Sreeja Mukka, Hyderabad (IN); Yogananda Rao Chillariga, Hyderabad (IN); and Ravindranath Doddi, Hyderabad (IN)
Assigned to Qualcomm Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 28, 2022, as Appl. No. 17/976,468.
Prior Publication US 2024/0143434 A1, May 2, 2024
Int. Cl. G06F 11/07 (2006.01); G06F 13/40 (2006.01)
CPC G06F 11/0793 (2013.01) [G06F 11/0745 (2013.01); G06F 13/4059 (2013.01); G06F 2213/0026 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of operating an apparatus for data communication, comprising:
transmitting, to a link partner, one or more first data packets via a wired data link;
receiving a negative feedback comprising a first parameter and a second parameter that are configured to request retransmission of one or more of the first data packets; and
retransmitting the requested one or more first data packets,
wherein the first parameter comprises a first sequence number, and the second parameter comprises a second sequence number that is later in time than the first sequence number, and
wherein one of the retransmitted one or more first data packets comprises a sequence number that is equal to the second sequence number.