Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications
US-12166546-B2 · Dec 10, 2024 · US
Multi-user MIMO communication system and method using feedback information
US9014019B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9014019-B2 |
| Application number | US-201113092806-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 22, 2011 |
| Priority date | Jun 22, 2010 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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The effective performance metric and achieving method of a multi-user multiple-input multiple-output (MU-MIMO) communication system are provided. A number of feedback bits of channel information may be determined based on an effective spectral efficiency (ESE). The ESE may correspond to a metric of the throughput performance with respect to a total radio resource including an uplink radio resource and a downlink radio resource. User-scheduling may be based on the feedback information that is based on the ESE, and thus, the throughput performance of the communication system may be enhanced.
First claim
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The invention claimed is: 1. A communication method of a terminal for a downlink reception in a wireless communication environment including terminals and a base station including multiple transmit-antennas, the method comprising: estimating a downlink channel between the base station and a terminal and obtaining an uplink channel state between the base station and the terminal; calculating an effective spectral efficiency (ESE) based on a length of feedback time expended when t…
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Electricity · mapped topic
- H04B7/0452Primary
Electricity · mapped topic
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- What does patent US9014019B2 cover?
- The effective performance metric and achieving method of a multi-user multiple-input multiple-output (MU-MIMO) communication system are provided. A number of feedback bits of channel information may be determined based on an effective spectral efficiency (ESE). The ESE may correspond to a metric of the throughput performance with respect to a total radio resource including an uplink radio resou…
- Who is the assignee on this patent?
- Kim Sung-Jin, Park Chang-Soon, Yang Hong-Shuan, and 2 more
- 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 Apr 21 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).