Methods and user equipment in a wireless communication network
US-2015078490-A1 · Mar 19, 2015 · US
Methods and apparatus for extracting symbols from an SC-FDMA digital communications signal using a maximum likelihood detector
US9178656B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9178656-B2 |
| Application number | US-201314138210-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 23, 2013 |
| Priority date | Dec 23, 2013 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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 method and system are described for applying MLD detection to SC-FDMA data streams. Embodiments obtain initial estimates of at least some symbols encoded within an SC-FDMA data input using a non-MLD algorithm, and then use the initial estimates to reduce the search space and the MLD complexity. In addition, the reduced complexity MLD (“RC-MLD”) is applied only to a limited search window within the digital communication input, thereby modeling only a subset of the symbols included in the digital communication input. The MLD complexity is thereby reduced sufficiently for an RC-MLD decoder to simultaneously model and extract a plurality of the symbols included in the data input. Symbols initially decoded by the non-MLD algorithm can be subtracted from the data input in a serial interference cancelling module. This cancellation can be applied successively in a turbo-loop.
First claim
Opening claim text (preview).
I claim: 1. A method of extracting a plurality of symbols from a digital communication input, the method comprising: by a system for a radio receiver: applying a Fourier transform to a received digital communication input comprising at least one digital communication signal that includes M data streams of symbols transmitted by N single carrier frequency division multiple access (“SC-FDMA”) transmitters, where M and N are integers and are not necessarily equal to each other, said…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
- H04L1/0054Primary
Electricity · mapped topic
Electricity · mapped topic
- H04L27/2636Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9178656B2 cover?
- A method and system are described for applying MLD detection to SC-FDMA data streams. Embodiments obtain initial estimates of at least some symbols encoded within an SC-FDMA data input using a non-MLD algorithm, and then use the initial estimates to reduce the search space and the MLD complexity. In addition, the reduced complexity MLD (“RC-MLD”) is applied only to a limited search window withi…
- Who is the assignee on this patent?
- Collision Comm Inc
- What technology area does this patent fall under?
- Primary CPC classification H04L1/0054. 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).