Invention Grant
- Patent Title: Pilot design for massive MIMO communication
- Patent Title (中): 大规模MIMO通信的导频设计
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Application No.: US14042257Application Date: 2013-09-30
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Publication No.: US09106280B2Publication Date: 2015-08-11
- Inventor: Sam Alex , Amin Mobasher , Louay Jalloul
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04L1/02 ; H04B7/04 ; H04L25/02 ; H04B7/06

Abstract:
Embodiments recognize that in MIMO and M-MIMO systems, physical antennas tend to be closely spaced to each other (e.g., a grid). As a result, a spatial correlation typically exists between physical antennas as well as between transmissions from logical antenna ports. Embodiments exploit this characteristic to reduce the amount of pilot signaling needed to enable downlink channel estimation. Specifically, embodiments limit pilot signaling to only a subset of supported logical antenna ports and rely on spatial correlation information to interpolate channels from logic antenna ports for which no pilot signaling is used.
Public/Granted literature
- US20140307816A1 Pilot Design for Massive MIMO Communication Public/Granted day:2014-10-16
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