Method and apparatus for transmitting and receiving feedback information in mobile communication system using multiple antennas
US-9871639-B2 · Jan 16, 2018 · US
Beam selecting method, base station, and user equipment
US10389418B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10389418-B2 |
| Application number | US-201715821283-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2017 |
| Priority date | Mar 20, 2014 |
| Publication date | Aug 20, 2019 |
| Grant date | Aug 20, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A user equipment used in a mobile communication system that has multiple antenna ports configured to receive a first reference signal from a base station is disclosed. The antenna ports are configured to transmit the first feedback information for the first reference signal. Additionally, the antenna ports are configured to receive a second reference signal from the base station and transmit the second feedback information for the second reference signal.
First claim
Opening claim text (preview).
What is claimed is: 1. A user equipment used in a mobile communication system, comprising: a plurality of antenna ports configured to receive a first reference signal type including more than one channel state information-reference signals (CSI-RSs) from a base station, wherein the plurality of antenna ports are configured to transmit a first feedback information for the first reference signal type, and wherein the plurality of antenna ports are configured to receive a second reference signal type from the base station and transmit a second feedback information for the second reference signal type, wherein the first feedback information includes a precode selection result for the first reference signal type and a number of optimum beams, and wherein the second feedback information includes a precode selection result for the second reference signal type.
Assignees
Inventors
Classifications
for beam forming · CPC title
using beam steering · CPC title
- H04B7/0456Primary
Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting · CPC title
using different training sequences per antenna · CPC title
Channel coefficients, e.g. channel state information [CSI] · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10389418B2 cover?
- A user equipment used in a mobile communication system that has multiple antenna ports configured to receive a first reference signal from a base station is disclosed. The antenna ports are configured to transmit the first feedback information for the first reference signal. Additionally, the antenna ports are configured to receive a second reference signal from the base station and transmit th…
- Who is the assignee on this patent?
- Ntt Docomo Inc
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0456. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 20 2019 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).