Modular location tag for a real time location system network
US-2015375041-A1 · Dec 31, 2015 · US
Interference cancellation in a spread spectrum communication system
US9036680B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9036680-B2 |
| Application number | US-201113117233-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 27, 2011 |
| Priority date | Sep 10, 1999 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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A code division multiple access communication system transmits a pilot and traffic signal over a shared spectrum. The pilot and traffic signal have an associated code and are received over the shared spectrum. The received signals are sampled and the samples are delayed to produce a window. A weighted value for each despread pilot code window sample is determined using an adaptive algorithm. Each window sample is despread with a traffic code. Each despread traffic code window sample is weighted according to a weight corresponding to its respective pilot code sample.
First claim
Opening claim text (preview).
What is claimed is: 1. A base station comprising: a plurality of antennas; circuitry configured to produce a plurality of pilot signals; wherein a different pilot signal of the plurality of pilot signals is transmitted on each of the plurality of antennas; wherein each of the pilot signals is derived from at least a portion of a first pseudo noise (PN) sequence and the at least a portion of the first PN sequence bits for each of the pilot signals is different; wherein the…
Assignees
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Classifications
Electricity · mapped topic
Electricity · mapped topic
- H04B1/7097Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9036680B2 cover?
- A code division multiple access communication system transmits a pilot and traffic signal over a shared spectrum. The pilot and traffic signal have an associated code and are received over the shared spectrum. The received signals are sampled and the samples are delayed to produce a window. A weighted value for each despread pilot code window sample is determined using an adaptive algorithm. Ea…
- Who is the assignee on this patent?
- Mesecher David K, Reznik Alexander, Grieco Donald M, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H04B1/7097. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 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).