Slotted mode code usage in a cellular communications system

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United States of America Patent

PATENT NO 6339646
SERIAL NO

09185395

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Abstract

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The downlink channelization code limitation problem encountered in spread spectrum or CDMA cellular systems is resolved by using codes from a different, non-orthogonal code set when operating in the slotted mode. The non-orthogonal code sets can be constructed by using the same channelization code tree, but applying a different scrambling code.

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TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)164 83 STOCKHOLM

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Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19981999200020012002200320042005200620070255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dahlman, Erik Bromma, SE 302 5456
Ovesjo, Fredrik Solna, SE 15 635

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  • 25 Citation Count
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  • 80.57 % this patent is cited more than
  • 23 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges18267138532317611101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8091 - 100020406080100120140160180200220240260280300

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