CN1165125C

3G

Title

Method for reducing interference in spread spectrum code division multiple access

Application Number:

CN2001123783

Publication Date:

01-09-2004

Current Assignee:

Family ID:

Application Date:

05-07-1995

Declaring Company:

Publication Country:

US

Priority Date:

26-07-1994

Title

Method for reducing interference in spread spectrum code division multiple access

Application Number:

CN2001123783

Family ID:

Publication Country:

US

Publication Date:

01-09-2004

Application Date:

05-07-1995

Priority Date:

26-07-1994

Current Assignee:

Declaring Company:

Abstract  Abstract

A spreading code used in the spread spectrum receiver having N channel for reducing interference division multiple access (CDMA) interference canceller. The interference canceler includes a plurality of correlators the plurality of spread-spectrum-processing circuits (55 65 75) a subtraction circuit (150) and channel correlators (147). using a plurality of chip-code signal from the code signal generator (52 62 72) generated by the correlators despread the spread spectrum CDMA signal into a plurality of despread signals. performing the spectrum spreading process to the plurality of de-spread signal using a timed version of the plurality of chip signal generated from the delay device (53 55 65) of the plurality of spread-spectrum-processing circuits (75 63 73). For recovering a code channel using the ith chip code signal a subtraction circuit (150) is subtracted from the spread-spectrum CDMA signal each of a N-1 de-spread signal thereby generating a subtracted signal. channel correlator (147) for despreading the subtracted signal.

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.