Method and apparatus for downlink and uplink carrier-phase reporting
AssigneeSamsung Electronics Co., Ltd.
InventorEmad N. Farag
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for an uplink carrier-phase reporting. A method of operating a user equipment (UE) includes receiving, from N antennas of a base station, N downlink (DL) positioning reference signals (PRSs), respectively, and measuring carrier phase differences of the received DL PRSs corresponding to adjacent pairs of the N antennas. The DL PRSs are received in orthogonal resources and N>1. The method further includes determining a first carrier phase difference to report based on the measured carrier phase differences and reporting the first carrier phase difference to a network.
Claims14
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.
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.
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.
Dependencies are inferred from the claim text.