Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications
US-12166546-B2 · Dec 10, 2024 · US
Method for transmitting precoding matrix information and user device, and method for transmitting data to plurality of user devices and base station
US8989115B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8989115-B2 |
| Application number | US-201013511596-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2010 |
| Priority date | Nov 30, 2009 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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The present invention relates to a precoding matrix information transmission method and a user device, and provides a method for transmitting precoding matrix information by a particular user device among user devices that receive a signal transmitted from one base station. The method comprises the steps of: determining, from a predetermined codebook, a first precoding matrix which is a precoding matrix for the particular user device during signal reception, and determining one or more second precoding matrices for the other user devices which are to be multiplexed in a predetermined resource region with the particular user device, wherein the one or more second precoding matrices are determined within a codebook subset of the predetermined codebook linked with the first precoding matrix; and transmitting, to the base station, first precoding matrix information indicating the first precoding matrix and second precoding matrix information indicating the one or more second precoding matrices.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of transmitting precoding matrix information by a first user equipment (UE) in a wireless communication system in which a plurality of UEs simultaneously receive a signal from a base station, the method comprising: determining a first precoding matrix which is a precoding matrix for the first UE within a predetermined codebook and determining one or more second precoding matrices for other UEs to be multiplexed in a predetermined resource area…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8989115B2 cover?
- The present invention relates to a precoding matrix information transmission method and a user device, and provides a method for transmitting precoding matrix information by a particular user device among user devices that receive a signal transmitted from one base station. The method comprises the steps of: determining, from a predetermined codebook, a first precoding matrix which is a precodi…
- Who is the assignee on this patent?
- Koo Ja Ho, Lee Wook Bong, Chung Jae Hoon, and 3 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 Mar 24 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).