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US 12,634,858 B2Granted
Delay compensation method and device
AssigneeUfi Space co., Ltd.
InventorsYu-Min Wang, Meng-Chiao Lin
Life of this patent
Estimating the term…
Abstract
A delay compensation method and device are provided. The method includes: obtaining a control plane message; obtaining a path delay of each of multiple radio units, and determining a compensation time length corresponding to each of the radio units based on a reference path delay and the path delay of each of the radio units; and sending the control plane message to each of the radio units based on the compensation time length corresponding to each of the radio units.
Claims11
A delay compensation method, applicable to a delay compensation device, comprising:
- obtaining a control plane message;
- obtaining a path delay of each of a plurality of radio units, and determining a plurality of different compensation time lengths, each of the compensation time lengths corresponding to each of the radio units based on a reference path delay and the path delay of each of the radio units;
- finding a reference radio unit corresponding to the reference path delay among the radio units, and determining a reference message sending time point of the reference radio unit,
- determining a plurality of different message sending time points corresponding to each of the radio units based on the reference message sending time point and the plurality of different compensation time lengths corresponding to each of the radio units;
- sending the control plane message to each of the radio units at each of the plurality of different message sending time points corresponding to each of the radio units;
- and
- receiving a user plane message corresponding to the control plane message sent from each of the radio units, wherein the corresponding user plane message is directly processed after being received by the delay compensation device without being delayed in the delay compensation device,
- wherein the control plane message triggers each of the radio units to send the corresponding user plane message to the delay compensation device, and the step of determining the compensation time length corresponding to each of the radio units based on the reference path delay and the path delay of each of the radio units comprises:
- for an i-th radio unit among the radio units, determining that the compensation time length corresponding to the i-th radio unit for round-trip delay is:
- CT_i
- =
- (
- RD
- -
- d_i
- )
- *
- 2
- ,
- where RD is the reference path delay, and d_i is the path delay corresponding to the i-th radio unit.
17 more elements
A delay compensation device, comprising:
- a first processor, executing:
- obtaining a control plane message;
- obtaining a path delay of each of a plurality of radio units, and determining a plurality of different compensation time lengths, each of the compensation time lengths corresponding to each of the radio units based on a reference path delay and the path delay of each of the radio units;
- a delay compensation circuit, coupled to the first processor, executing:
- finding a reference radio unit corresponding to the reference path delay among the radio units, and determining a reference message sending time point of the reference radio unit,
- determining a plurality of different message sending time points corresponding to each of the radio units based on the reference message sending time point and the plurality of different compensation time lengths corresponding to each of the radio units;
- sending the control plane message to each of the radio units at each of the plurality of different message sending time points corresponding to each of the radio units;
- and
- receiving a user plane message corresponding to the control plane message sent from each of the radio units;
- and
- a delay management circuit, coupled to a second processor, directly executing a processing for the corresponding user plane message after being received by the delay compensation device without being delayed in the delay compensation device,
- wherein the control plane message triggers each of the radio units to send the corresponding user plane message to the delay compensation device, and the first processor further executes:
- for an i-th radio unit among the radio units, determining that the compensation time length corresponding to the i-th radio unit for round-trip delay is:
- CT_i
- =
- (
- RD
- -
- d_i
- )
- *
- 2
- ,
- where RD is the reference path delay, and d_i is the path delay corresponding to the i-th radio unit.
21 more elements
Dependencies are inferred from the claim text.