Granted Patent B2

US 12,587,988 · App. 17/731,503 · Granted Mar 24, 2026

Inventor: Andreas Falkenberg (Escondido, CA)

H04W56/0045H04W24/10H04W74/0841H04W74/0833H04W74/0838

Abstract

Claims (39)

1 . 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 . The method of claim 1 , wherein the measuring includes estimating a time difference between transmission of the downlink (DL) signal from the base station (BS) and reception of the DL signal at the user equipment (UE).

3 . The method of claim 1 , wherein the transmitted measurement results include a time difference between transmission of the downlink (DL) signal from the base station (BS) and reception of the DL signal at the user equipment (UE).

4 . The method of claim 1 , wherein the computing includes:

calculating a first calculated value by raising the first timing advance (TA) value to an Nth power, where N is an integer or real number; and

multiplying the first calculated value by a scalar quantity.

5 . The method of claim 1 , wherein the second timing advance (TA) value is equal to the first TA value.

6 . 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).

7 . The method of claim 6 , wherein the second timing advance (TA) value is equal to a difference between the first TA value and the third TA value.

8 . The method of claim 6 , wherein the third timing advance (TA) value is a preferred TA value of the user equipment (UE).

9 . The method of claim 6 , wherein the transmitting is via a physical random access channel (PRACH).

10 . The method of claim 6 , wherein the computing includes:

calculating a first calculated value by raising the first timing advance (TA) value to an Nth power, where N is a real or integer number; and

multiplying the first calculated value by a scalar quantity.

11 . The method of claim 6 , wherein the first timing advance (TA) value is equal to a difference between a first timing value and a second timing value, and wherein the difference adjust the second TA value and the second TA value is proportional to the difference.

12 . The method of claim 11 , wherein the second timing advance (TA) value is equal to the first TA value.

13 . 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.

Continuity (2)

References Cited (83)