Title:
METHOD AND APPARATUS FOR MIMO CSI FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2023/040618
Kind Code:
A1
Abstract:
A user equipment (UE) reports channel state information (CSI) to a base station in multiple-input multiple-output (MIMO) transmissions. The UE constructs a CSI matrix based on a CSI reference signal (CSI-RS) received from the base station. The CSI matrix is at least three-dimensional in a transmit (Tx) antenna domain, a frequency domain, and a time domain. The UE transforms the CSI matrix into a transformed matrix in at least a Tx beam domain, a delay domain, and a Doppler domain. The UE encodes the transformed CSI matrix into a one-dimensional feature vector using a multi-layered neural network, and sends the one-dimensional feature vector to the base station.
Inventors:
KYUNG GYU BUM (US)
GUEY JIANN-CHING (CN)
GUEY JIANN-CHING (CN)
Application Number:
PCT/CN2022/114796
Publication Date:
March 23, 2023
Filing Date:
August 25, 2022
Export Citation:
Assignee:
MEDIATEK SINGAPORE PTE LTD (SG)
KYUNG GYU BUM (US)
GUEY JIANN CHING (CN)
KYUNG GYU BUM (US)
GUEY JIANN CHING (CN)
International Classes:
H04L25/02; H04B7/0456
Domestic Patent References:
| WO2019229152A1 | 2019-12-05 | |||
| WO2018143688A1 | 2018-08-09 | |||
| WO2020150860A1 | 2020-07-30 |
Foreign References:
| CN112514334A | 2021-03-16 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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