Invention Grant
- Patent Title: CSI reporting in beamforming systems via time- and frequency-distributed CSI estimation
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Application No.: US15392302Application Date: 2016-12-28
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Publication No.: US10164699B2Publication Date: 2018-12-25
- Inventor: Stefan Franz , Ziyang Ju , Yeong-Sun Hwang , Ismael Gutierrez
- Applicant: Intel IP Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel IP Corporation
- Current Assignee: Intel IP Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04L25/02 ; H04B17/364 ; H04B17/336 ; H04B7/04 ; H04L5/00 ; H04B7/0452

Abstract:
An apparatus of a user equipment (UE) may include memory and processing circuitry coupled to the memory. The processing circuitry may be configured to estimate a communication channel for a multi-carrier signal based on a received reference signal, the multi-carrier signal aggregating a plurality of component carriers. During a transmission time interval of the multi-carrier signal, the UE can perform a global search over a beam search space to obtain a beam index recommendation for a component carrier of the plurality of component carriers. The beam index recommendation corresponds to a maximized channel quality metric of the estimated communication channel and is indicative of a beam grid within the beam search space. The UE can perform a localized search of a subset of the beam search space to obtain a second beam index recommendation for a second component carrier of the plurality of component carriers.
Public/Granted literature
- US20180183507A1 CSI REPORTING IN BEAMFORMING SYSTEMS VIA TIME- AND FREQUENCY-DISTRIBUTED CSI ESTIMATION Public/Granted day:2018-06-28
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