Joint precoder and receiver design for mu-mimo downlink
US-2015372727-A1 · Dec 24, 2015 · US
Communication device, communication control method and communication system
US9312940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9312940-B2 |
| Application number | US-201013144419-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 18, 2010 |
| Priority date | Feb 13, 2009 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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To enable high-speed learning of an antenna directionality to be used for millimeter-wave communication, there is provided a communication device including a first radio communication unit capable of radio communication in accordance with a first communication method, and a second radio communication unit capable of radio communication in accordance with a second communication method using a higher frequency band than the first communication method, in which, upon receiving an instruction signal instructing to learn a beam directionality, the first radio communication unit determines a reception start time point of a beam reference signal based on the instruction signal, and the second radio communication unit starts reception of the beam reference signal from the reception start time point determined by the first radio communication unit and determines a parameter value for specifying an optimum beam pattern based on the received beam reference signal.
First claim
Opening claim text (preview).
The invention claimed is: 1. A communication device comprising: a first radio communication unit capable of radio communication, utilizing at least one antenna, in accordance with a first communication method; and a second radio communication unit capable of radio communication, utilizing at least one antenna, in accordance with a second communication method using millimeter waves and which is different than the first communication method, wherein the first radio comm…
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Classifications
- H04B7/0619Primary
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 US9312940B2 cover?
- To enable high-speed learning of an antenna directionality to be used for millimeter-wave communication, there is provided a communication device including a first radio communication unit capable of radio communication in accordance with a first communication method, and a second radio communication unit capable of radio communication in accordance with a second communication method using a hi…
- Who is the assignee on this patent?
- Takano Hiroaki, Morioka Yuichi, Kunihiro Takushi, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0619. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).