Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications
US-12166546-B2 · Dec 10, 2024 · US
Combining channel quality measurements based on sounding reference signals and demodulation reference signals
US8971203B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8971203-B2 |
| Application number | US-201314101539-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 10, 2013 |
| Priority date | Mar 15, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A first communication node communicates by multiple-input-multiple-output (MIMO) wireless communications with a second communication node of a wireless communication system. The method includes receiving a Sounding Reference Signal (SRS) over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the sounding reference signal to output a first channel quality value. A demodulation reference signal is received over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the demodulation reference signal to output a second channel quality value. Reliability of the measurements of the first channel quality value and the second channel quality value is determined. The first and second channel quality values are combined while compensating for the determined reliability difference between the measurements to generate a combined channel quality value. Related communication nodes are disclosed.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of operating a first communication node that communicates by multiple-input-multiple-output (MIMO) wireless communications with a second communication node of a wireless communication system, the method comprising: receiving a sounding reference signal over a plurality of subcarriers transmitted by the second communication node for MIMO communications; measuring a channel quality responsive to the sounding reference signal to output a first…
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Electricity · mapped topic
- H04B7/0452Primary
Electricity · mapped topic
- H04L43/08Primary
Electricity · mapped topic
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- What does patent US8971203B2 cover?
- A first communication node communicates by multiple-input-multiple-output (MIMO) wireless communications with a second communication node of a wireless communication system. The method includes receiving a Sounding Reference Signal (SRS) over a plurality of subcarriers transmitted by the second communication node for MIMO communications. Channel quality is measured responsive to the sounding re…
- Who is the assignee on this patent?
- Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0452. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).