In-phase and quadrature-phase impairments compensation in sub-terahertz communication
AssigneeQUALCOMM Incorporated
InventorsDavid Yunusov, Shay Landis, Idan Michael Horn
Life of this patent
Estimating the term…
Abstract
IQ impairments compensation in sub-terahertz (sub-THz) communication is disclosed. According to some aspects, a user equipment (UE) determines an estimated in-phase (I) and quadrature phase (Q) impairment of the UE, the IQ impairment of the UE comprising a mismatch of phase and/or amplitude, between an I path and a Q path within an analog receiver circuitry of the UE, and reports the estimated IQ impairment of the UE to a base station (BS). The BS determines a pre-compensation to compensate for the estimated IQ impairment of the UE and uses the determined pre-compensation when transmitting to the UE.
Claims30
A method of operating a user equipment (UE), the method comprising:
- determining an estimated in-phase (I) and quadrature phase (Q) impairment of the UE, the IQ impairment of the UE comprising a mismatch of phase and/or amplitude, between an I path and a Q path within an analog receiver circuitry of the UE;
- and
- reporting, to a base station (BS), the estimated IQ impairment of the UE as an amplitude error, a phase error, or both, between the I path and the Q path within the analog receiver circuitry of the UE.
A method of operating a base station (BS), the method comprising:
- receiving, from a user equipment (UE), an estimated in-phase (I) and quadrature phase (Q) impairment at the UE, the IQ impairment of the UE comprising a mismatch of phase and/or amplitude, between an I path and a Q path within an analog receiver circuitry of the UE, reported as an amplitude error, a phase error, or both, between the I path and the Q path within the analog receiver circuitry of the UE;
- determining a pre-compensation to compensate for the estimated IQ impairment of the UE;
- and
- using the determined pre-compensation when transmitting to the UE.
A user equipment (UE), comprising:
- a memory;
- at least one transceiver;
- and
- at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
- determine an estimated in-phase (I) and quadrature phase (Q) impairment of the UE, the IQ impairment of the UE comprising a mismatch of phase and/or amplitude, between an I path and a Q path within an analog receiver circuitry of the UE;
- and
- report, to a base station (BS), the estimated IQ impairment of the UE as an amplitude error, a phase error, or both, between the I path and the Q path within the analog receiver circuitry of the UE.
A BS, comprising:
- a memory;
- at least one transceiver;
- and
- at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
- receive, via the at least one transceiver, from a user equipment (UE), an estimated in-phase (I) and quadrature phase (Q) impairment at the UE, the IQ impairment of the UE comprising a mismatch of phase and/or amplitude, between an I path and a Q path within an analog receiver circuitry of the UE, reported as an amplitude error, a phase error, or both, between the I path and the Q path within the analog receiver circuitry of the UE;
- determine a pre-compensation to compensate for the estimated IQ impairment of the UE;
- and
- use the determined pre-compensation when transmitting to the UE.
Dependencies are inferred from the claim text.