US Patent No. 11,071,158

COMMUNICATION METHOD, COMMUNICATIONS DEVICE, AND COMMUNICATIONS SYSTEM THEREOF


Patent No. 11,071,158
Issue Date July 20, 2021
Title Communication Method, Communications Device, And Communications System Thereof
Inventorship Haiyan Luo, Shanghai (CN)
Yan Wang, Beijing (CN)
Mingzeng Dai, Shanghai (CN)
Assignee Huawei Technologies Co., Ltd., Shenzhen (CN)

Claim of US Patent No. 11,071,158


1. A communication method, comprising:sending, by a first network node to a second network node on each of a plurality of user plane tunnels, a message for feeding back a downlink transmission status, wherein each message sent on each of the plurality of user plane tunnels comprises one of a plurality of messages, wherein each message of the plurality of messages comprises an indication, wherein:
the indication is used to indicate radio link outage in response to determining that the radio link outage occurs between the first network node and a terminal device; and
the indication is used to indicate radio link resume in response to resumption of a radio link transmission from an outage between the first network node and the terminal device,
wherein the plurality of user plane tunnels are established at a communications interface between the first network node and the second network node, wherein the plurality of user plane tunnels are associated with the terminal device, and
wherein:a first message of the plurality of messages comprises information about a lost data packet, and a second message of the plurality of messages does not comprise the information about the lost data packet; or
each of the plurality of messages comprises information about a lost data packet; or
none of the plurality of messages comprise information about a lost data packet.