Patent ID: 11910231
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A delay measurement apparatus, wherein the apparatus is a second communications device and comprises:
a transmitter, the transmitter configured to send a data unit to a first communications device, wherein the data unit comprises time information, wherein the time information is used to indicate a first moment at which the second communications device sends the data unit, and wherein the time information includes a part of bits of a frame number at the first moment; and
a receiver, the receiver configured to receive delay information from the first communications device, wherein the delay information indicates a delay from the second communications device to the first communications device, wherein the delay is determined based on the first moment and a second moment, and wherein the second moment is a moment at which the first communications device receives the data unit.