Invention Grant
- Patent Title: Hybrid closed-loop multiple-input multiple-output and transparent diversity schemes
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Application No.: US17255134Application Date: 2019-06-24
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Publication No.: US11569877B2Publication Date: 2023-01-31
- Inventor: Yi Huang , Gokul Sridharan , Wei Yang , Taesang Yoo , Peter Gaal
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: QUALCOMM Incorporated
- International Application: PCT/US2019/038741 WO 20190624
- International Announcement: WO2020/005838 WO 20200102
- Main IPC: H04B7/0456
- IPC: H04B7/0456 ; H04W52/08 ; H04B7/06 ; H04B7/0491

Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas. To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other, the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, and a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.
Public/Granted literature
- US20230163819A9 HYBRID CLOSED-LOOP MULTIPLE-INPUT MULTIPLE-OUTPUT AND TRANSPARENT DIVERSITY SCHEMES Public/Granted day:2023-05-25
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