Signal coding using orthogonal variable spreading factor code set
OwnerNathan Hays, David Assoninventors
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Abstract
A satellite communications system can use a spread-spectrum waveform and format, a synchronization scheme, and/or a power management algorithm. This approach can provide benefits such as allowing every terminal to communicate with every other terminal, link margin permitting. This gives the network a mesh topology although it can be configured in a star topology for highly asymmetric applications. A further understanding of the nature and the advantages of particular embodiments disclosed herein may be realized by reference of the remaining portions of the specification and the attached drawings.
Claims1
A method for improving spectral characteristics in a transmitted signal, wherein the signal is generated at least in part by using an Orthogonal Variable Spreading Factor (OVSF) code set, the method comprising:
- scrambling the signal, at least in part, by using an outer code to improve spectral quality, so that a descramble period is substantially the same as that of the OVSF code set.
Dependencies are inferred from the claim text.