Method for reducing interference in a TDD system

Details Method for reducing interference in a TDD system Method for reducing interference in a TDD system

2007-02-06

2007-02-06

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C370S328000, C370S342000

Reexamination Certificate

active

10480696

ABSTRACT:
The amount of interference to communications in Time Division Duplexing (TDD) mode between a TDD mobile and a TDD base station from a mobile operating in Frequency Division Duplexing (FDD) mode that is located near to the TDD base station can be reduced by passing information regarding the interfering FDD signal to the TDD base station, where it is processed and subtracted from the received TDD signal, which includes the interference, so as to obtain the pure TDD signal, as required. Either the FDD data (22), or an FDD signal (23) regenerated from the FDD data or simply the received FDD signal (21) can be passed (24) to the TDD base station. The TDD base station can regenerate an FDD signal, if required, which is then filtered (25) using TDD filters and normalized by correlating (26) and scaling (27) the filtered FDD signal to a received TDD signal. The normalized FDD signal is then subtracted (28) from the received TDD signal to reduce the interference.

REFERENCES:
patent: 5768254 (1998-06-01), Papadopoulos et al.
patent: 5896424 (1999-04-01), Uchida et al.
patent: 5995567 (1999-11-01), Cioffi et al.
patent: 6249541 (2001-06-01), Uchida et al.
patent: 6301316 (2001-10-01), Uchida et al.
patent: 6707798 (2004-03-01), Klein et al.
patent: 6807222 (2004-10-01), Widdowson
patent: 2001/0012283 (2001-08-01), Miya et al.
patent: 0 884 855 (1998-12-01), None

Affiliated with

Also associated with

Rating

Method for reducing interference in a TDD system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reducing interference in a TDD system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing interference in a TDD system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3815195