US7031397B1

4G,3G,2G

Title

COMMUNICATION SYSTEM WITH REDUCED POWER VARIATION AND METHOD THEREFOR

Application Number:

US20010743593

Publication Date:

18-04-2006

Current Assignee:

Family ID:

Application Date:

15-03-2001

Declaring Company:

Publication Country:

US

Priority Date:

11-07-1998

Title

COMMUNICATION SYSTEM WITH REDUCED POWER VARIATION AND METHOD THEREFOR

Application Number:

US20010743593

Family ID:

Publication Country:

US

Publication Date:

18-04-2006

Application Date:

15-03-2001

Priority Date:

11-07-1998

Current Assignee:

Declaring Company:

Abstract  Abstract

Communication systems employing subchannel communication such as OFDM or multicode CDMA have a disadvantage of power variation of the transmitted signal. The present invention provides reduced power variation without compromising performance or bandwidth. Information symbols to be transmitted on the individual subchannel are fed to encoders which map the information symbols into channel symbols by increasing their order. The encoding in response to a forward error correction scheme and includes selection between redundant symbol values to reduce power variation. Preferably the encoder includes a trellis coder jointly encoding the symbols and a compensation data set to reduce power variation.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.