Spread-spectrum phase and channel tracking
US8064499B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2007 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Jun 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/70752
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Common components are used to detect messages from a variety of transmitters, and the characteristics of each detected message are used to dynamically configure the demodulation process for each message. Channelization is selectively performed before, after, or before-and-after de-spreading, depending upon the particular environment and/or the particular characteristics of the received messages. Frequency synchronization to each transmitter is achieved by initializing a tracking loop within the demodulator associated with the transmitter, and code-phase synchronization to each transmitter is achieved by selectively inserting or deleting bits, based on the frequency and code-phase characteristics of the detected message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.