US Patent Application 17717682. BLIND COMMON PHASE ERROR AND RESIDUAL CARRIER FREQUENCY OFFSET MITIGATION simplified abstract

BLIND COMMON PHASE ERROR AND RESIDUAL CARRIER FREQUENCY OFFSET MITIGATION

Inventors

Michael Levitsky of Rehovot (IL)

Assaf Touboul of Netanya (IL)

Lev Zavurov of Tel Aviv (IL)

Daniel Paz of Geva Carmel (IL)

Gideon Shlomo Kutz of Ramat Hasharon (IL)

BLIND COMMON PHASE ERROR AND RESIDUAL CARRIER FREQUENCY OFFSET MITIGATION - A simplified explanation of the abstract

• This abstract for appeared for patent application number 17717682 Titled 'BLIND COMMON PHASE ERROR AND RESIDUAL CARRIER FREQUENCY OFFSET MITIGATION'

Simplified Explanation

This abstract describes methods, systems, and devices for wireless communications that support blind common phase error (CPE) and residual carrier frequency offset mitigation. The techniques described aim to mitigate CPE at a receiving device without the need for a phase tracking reference signal (PTRS), resulting in less overhead and improved performance compared to using a PTRS. The receiving device can receive a shared channel message in a scheduled shared channel allocation, omitting the PTRS allocation based on the device's capability to apply blind CPE mitigation. In some cases, blind CPE mitigation for each subsequent data symbol of the shared channel message can be based on the blind CPE estimation for the previous symbol, allowing for robust mitigation of a residual carrier frequency offset.

Original Abstract Submitted

Methods, systems, and devices for wireless communications are described. The described techniques support blind common phase error (CPE) and residual carrier frequency offset mitigation. Generally, the described techniques provide for blind CPE mitigation at a receiving device without a phase tracking reference signal (PTRS) associated with less overhead and improved performance as compared to use of a PTRS to mitigate CPE. A receiving device may receive a shared channel message in a scheduled shared channel allocation in accordance with a PTRS configuration that omits a PTRS allocation based on a capability of the receiving device to apply blind CPE mitigation for shared channel receptions. In some examples, with a single DMRS symbol allocation, blind CPE mitigation for each subsequent data symbol of a shared channel message may be based on the blind CPE estimation for the previous symbol, which may enable robust mitigation of a residual carrier frequency offset.