公开(公告)号：US11283555B2

公开(公告)日：2022-03-22

申请号：US16818394

申请日：2020-03-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo Guan ,  Mingli Zhang ,  Naiqiang Qiao ,  Boyuan Yu

IPC: H04L12/28 ,  H04L1/18 ,  H04L45/24 ,  H04L49/9057

Abstract: A packet transmission method includes: receiving packets on a plurality of subflow connections of a multipath transmission control protocol (MPTCP) connection, and determining, based on the received packets, that packets at an MPTCP layer are out of order; determining that a blocking packet causing out-of-order is not received within a tolerance time, where the tolerance time is less than a largest RTO in RTOs of the plurality of subflow connections; and sending, by the network component, a retransmission instruction packet of the blocking packet on a target subflow connection in the plurality of subflow connections, where the retransmission instruction packet is used to instruct a sending device of the blocking packet to retransmit the blocking packet. Thus, there is no need to trigger retransmission after a subflow RTO expires, thereby shortening a delay.

公开(公告)号：US20200228633A1

公开(公告)日：2020-07-16

申请号：US16832676

申请日：2020-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Boyuan Yu ,  Mingli Zhang ,  Naiqiang Qiao ,  Bo Guan ,  Jun Zhou

IPC: H04L29/06 ,  H04L12/24 ,  H04L29/08

Abstract: A method for determining quality of service (QoS) includes receiving a first Internet Protocol (IP) packet, where the first IP packet includes a User Datagram Protocol (UDP) packet and a first IP header, determining, based on information in the first IP packet, a target QoS level to which the UDP packet belongs, dividing the UDP packet into at least two segments, encapsulating each of the at least two segments into a Multipath Transmission Control Protocol (MPTCP) packet, encapsulating the MPTCP packet into a second IP packet, where a payload length of a target IP packet in the second IP packet is equal to a byte length corresponding to the target QoS level, and sending the second IP packet to a peer device using an MPTCP connection with the peer device such that the peer device determines the target QoS level based on the payload length of the target IP packet.