Downlink transmission method and apparatus
US-2024421870-A1 · Dec 19, 2024 · US
Method for indicating precoding matrix indicator in uplink MIMO system with based on SC-FDMA
US9178595B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178595-B2 |
| Application number | US-201013148886-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2010 |
| Priority date | Feb 20, 2009 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
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A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a plurality of precoding matrices to the user equipment based on the received channel information, wherein the resource allocated to the user equipment is allocated by a bundle unit of a prescribed number of subcarriers, wherein each of a plurality of the precoding matrices are applied to regions generated from dividing a whole frequency band into a prescribed number of regions, respectively, and wherein the precoding matrix applied to the resource among a plurality of the precoding matrices has a maximum area resulting from overlapping a frequency band occupied by the allocated resource with a frequency band having the precoding matrix applied thereto.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of receiving a physical uplink shared channel (PUSCH) signal, the method comprising: transmitting a first physical downlink control channel (PDCCH) signal including first precoding matrix indicator (PMI) information for a first set of PMIs related to specific rank to a user equipment; transmitting a physical downlink shared channel (PDSCH) signal including second PMI information for a second set of PMIs to the user equipment, each of the fir…
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Classifications
- H04B7/0639Primary
Electricity · mapped topic
Electricity · mapped topic
- H04B7/0456Primary
Electricity · mapped topic
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- What does patent US9178595B2 cover?
- A method of transmitting PMI (precoding matrix indicator) information in an uplink MIMO system is disclosed. The present invention includes the steps of receiving channel information from a user equipment and transmitting information on a resource allocated to the user equipment in uplink transmission and PMI information indicating a precoding matrix to apply to a region of the resource among a…
- Who is the assignee on this patent?
- Kang Byeong Woo, Ahn Joon Kui, Seo Dong Youn, and 7 more
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0639. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 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).