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Pilot design for massive MIMO communication
US9106280B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9106280-B2 |
| Application number | US-201314042257-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 30, 2013 |
| Priority date | Apr 15, 2013 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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Abstract
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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.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for determining a channel from a transmitter having a plurality of physical antennas and supporting a plurality of logical antenna ports, comprising: determining a physical antenna spatial configuration of the transmitter; determining a logical antenna port pilot transmission configuration of the transmitter that includes information regarding first logical antenna ports of the plurality of logical antenna ports with pilot signal transmission and…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B7/0413Primary
Electricity · mapped topic
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- What does patent US9106280B2 cover?
- 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. Spe…
- Who is the assignee on this patent?
- Broadcom Corp
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0413. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).