Diversity for mobile terminals

Details Diversity for mobile terminals Diversity for mobile terminals

1998-02-03

2000-04-11

Hunter, Daniel S.

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

455562, H04Q 720

Patent

active

06049705&

ABSTRACT:
Polarization diversity is achieved in mobile terminals with three antennas. Each of the three antennas are orthogonal to one another. With three orthogonal antennas, the mobile terminal increases the likelihood that at least one antenna's polarity will match that of the incoming signal's wavefront, regardless of how the user orients the mobile terminal. Once a signal has been received by each of the three antennas, they can be selected or combined using a variety of techniques and/or algorithms. Among these techniques are selection diversity, switching selection diversity, fixed combining diversity, and adaptive combining diversity (e.g., maximal ratio combining and interference rejection combining).

REFERENCES:
patent: 4939791 (1990-07-01), Bochmann et al.
patent: 5561673 (1996-10-01), Takai et al.
patent: 5606733 (1997-02-01), Kanayama et al.
patent: 5692019 (1997-11-01), Chang et al.
patent: 5724666 (1998-03-01), Dent

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