ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,271, issued on Aug. 19, was assigned to VIVO MOBILE COMMUNICATION Co. LTD. (Guangdong, China).
"Data retransmission method, data retransmission apparatus, target node, source node, and terminal" was invented by Yanxia Zhang (Guangdong, China) and Zhenhua Xie (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Data retransmission method is disclosed. The method includes: obtaining a mapping relationship between GTP-U sequence numbers of N data packets sent by a source node and source PDCP sequence numbers assigned to the N data packets by the source node; and performing data retransmission based on the mapping relationship."
The patent ...