Method and apparatus in a wireless communication system for addi

Details Method and apparatus in a wireless communication system for addi Method and apparatus in a wireless communication system for addi

1998-05-20

2000-11-28

Chin, Stephen

Pulse or digital communications

Systems using alternating or pulsating current

375261, 370343, H04L 2700

Patent

active

061545007

ABSTRACT:
In a wireless communication system a first transmission (612, 614) is sent (802) over a first channel to a first receiver (122) that requires a transmission-free guard band (620) during a tuning period, and the first receiver accommodates a second transmission (616) sent concurrently with the first transmission on a second channel that overlaps with spectrum occupied by the guard band. During the tuning period, the system disallows the second transmission, and the first receiver adjusts (804) a pass band of a radio frequency (RF) filter (302) therein such that the pass band includes the guard band. Thereafter, the first receiver tunes (806) to the first channel. During a time other than the tuning period, the first receiver readjusts (810) the pass band of the RF filter such that the pass band excludes the guard band. After the tuning period, the system allows the second transmission to be sent (812).

REFERENCES:
patent: 5289496 (1994-02-01), Nakagawa et al.
patent: 5327245 (1994-07-01), Unetich et al.
patent: 5818827 (1998-10-01), Usui et al.

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