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US 12,587,988 B2Granted
Apparatus and methods for improving time advance alignment process in non-terrestrial wireless network
OwnerAndreas Falkenberginventor
Life of this patent
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Abstract
A method of time aligning by a user equipment (UE) requires measuring a downlink (DL) signal, including a first timing advance (TA) value. The DL signal is transmitted from a base station (BS) to derive measurement results. The method further includes transmitting the measurement results to a base station (BS), computing a second TA value from the first TA value, and aligning uplink (UL) transmission timing by the second TA value.
Claims13
A method of time aligning, by a user equipment (UE), comprising the steps of:
- measuring a downlink (DL) signal that includes a first timing advance (TA) value, the DL signal transmitted from a base station (BS) to derive measurement results;
- transmitting the measurement results to the base station (BS);
- computing a second TA value from the first TA value;
- and
- aligning uplink (UL) transmission timing by the second TA value.
2 more elements
A method of time aligning, by a base station (BS), comprising the steps of:
- receiving a message comprising measurement reports from a user equipment (UE);
- computing a first timing advance (TA) value from the measurement reports;
- computing a second TA value from the first TA value and a third TA value;
- and
- transmitting the second TA value to a user equipment (UE).
2 more elements
A user equipment (UE), comprising:
- a transceiver configured to:
- measure a downlink (DL) signal transmitted from a base station (BS), and derive measurement results therefrom;
- transmit the measurement results to the base station (BS);
- and
- receive from the BS a first timing advance (TA) value;
- and
- a processor in communication with the transceiver, the processor configured to:
- compute a second TA value from the first TA value;
- and
- align uplink (UL) transmission timing according to the second TA value;
- wherein, the UE is in communication with the base station (BS), wherein the base station comprises:
- a transceiver configured to measure uplink (UL) signals transmitted from one or more user equipments (UEs), and deriving measurement results therefrom;
- and
- a processor in communication with the transceiver, the processor configured to:
- compute a first timing advance (TA) value from the measurement results;
- and
- compute a second TA value from the first TA value and a third TA value;
- and
- the transceiver further configured to:
- transmit the second TA value to the one or more UEs.
17 more elements
Dependencies are inferred from the claim text.