Granted Patent B2

US 12,627,424 · App. 18/300,304 · Granted May 12, 2026

Inventor: Emad N. Farag (Flanders, NJ)

Assignee: Samsung Electronics Co., Ltd.

H04L5/001H04W64/00

Abstract

Claims (63)

1 . A user equipment (UE) comprising:

a transceiver; and

a processor coupled with the transceiver and configured to:

receive, from N antennas of a base station, N downlink (DL) positioning reference signals (PRSs), respectively, wherein the DL PRSs are received in orthogonal resources and N>1,

measure, based on the N DL PRSs, carrier phase differences corresponding to adjacent pairs of the N antennas, wherein information on a first distance between adjacent pairs of the N antennas is received from the base station,

determine, based on the first distance and the carrier phase differences, angle values corresponding to the carrier phase differences,

determine a first carrier phase difference to report based on averaging M carrier phase differences corresponding to M slots among the carrier phase differences,

determine a first angle value to report based on averaging M angle values corresponding to the M slots among the angle values, and

report, to the base station, the first carrier phase difference and the first angle value,

wherein information on M is received from the base station.

2 . The UE of claim 1 , wherein the orthogonal resources for the DL PRSs are:

different comb offsets for the DL PRSs, or

different symbols in a slot for the DL PRSs.

3 . The UE of claim 1 , wherein the processor is further configured to:

receive, on Y antennas, a DL PRS from the DL PRSs, where Y>1; and

measure a second carrier phase difference of the DL PRS between each pair of consecutive antennas of the Y antennas.

4 . The UE of claim 3 , wherein the processor is further configured to;

determine an angle of arrival based on the measured second carrier phase difference and a second distance between each pair of consecutive antennas of the Y antennas; and

report the angle of arrival to the base station, wherein information on the second distance is transmitted to the base station.

5 . The UE of claim 1 , wherein:

the processor is further configured to transmit, to the base station, P sounding reference signals (SRSs) on P antennas,

P>1, and

the P SRSs are transmitted on orthogonal resources.

6 . The UE of claim 5 , wherein the orthogonal resources for the SRSs are:

different comb offsets for the SRSs, or

different symbols in a slot for the SRSs.

7 . A base station (BS) comprising:

a transceiver; and

a processor coupled with the transceiver and configured to

transmit, to a user equipment (UE) on N antennas of the BS, N downlink (DL) positioning reference signals (PRSs), respectively, wherein the DL PRSs are received in orthogonal resources and N>1, and

receive, from the UE, a first carrier phase difference and a first angle value,

wherein the first carrier phase difference corresponds to an average of M carrier phase differences corresponding to M slots among carrier phase differences,

wherein the carrier phase differences are based on adjacent pairs of the N antennas, wherein information on a first distance between adjacent pairs of the N antennas is transmitted to the UE by the BS,

wherein the first angle value corresponds to an average of M angle values corresponding to the M slots among angle values,

wherein the angle values are based on the first distance and the carrier phase differences, and

wherein information on M is transmitted to the UE by the BS.

8 . The BS of claim 7 , wherein the orthogonal resources for the DL-PRSs are:

different comb offsets for the DL-PRSs, or

different symbols in a slot for the DL-PRSs.

9 . The BS of claim 7 , wherein:

the processor is further configured to receive P sounding reference signals (SRSs) from P antennas of the UE,

P>1, and

the P SRSs are transmitted on orthogonal resources.

10 . The BS of claim 9 , wherein the orthogonal resources for the SRSs are:

different comb offsets for the SRSs, or

different symbols in a slot for the SRSs.

11 . A method performed by a user equipment (UE), the method comprising:

receiving, from N antennas of a base station, N downlink (DL) positioning reference signals (PRSs), respectively, wherein the DL PRSs are received in orthogonal resources and N>1;

measuring, based on the N DL PRSs, carrier phase differences corresponding to adjacent pairs of the N antennas, wherein information on a first distance between adjacent pairs of the N antennas is received from the base station;

determining, based on the first distance and the carrier phase differences, angle values corresponding to the carrier phase differences;

determining a first carrier phase difference to report based on averaging M carrier phase differences corresponding to M slots among the carrier phase differences;

determining a first angle value to report based on averaging M angle values corresponding to the M slots among the angle values; and

reporting, to the base station, the first carrier phase difference and the first angle value,

wherein information on M is received from the base station.

12 . The method of claim 11 , wherein the orthogonal resources for the DL PRSs are:

different comb offsets for the DL PRSs, or

different symbols in a slot for the DL PRSs.

13 . The method of claim 11 , further comprising:

receiving, on Y antennas, a DL PRS from the DL PRSs, where Y>1; and

measuring a second carrier phase difference of the DL PRS between each pair of consecutive antennas of the Y antennas.

14 . The method of claim 13 , further comprising:

determining an angle of arrival based on the measured second carrier phase difference and a second distance between each pair of consecutive antennas of the Y antennas; and

reporting the angle of arrival to the base station, wherein information on the second distance is transmitted to the base station.

Assignments (1)

Continuity (4)

References Cited (20)