System including mobile radio station and base radio station

Details System including mobile radio station and base radio station System including mobile radio station and base radio station

1995-12-13

1998-08-11

Vo, Don N.

Pulse or digital communications

Transceivers

Transmission interface between two stations or terminals

375231, 375232, 3647242, H04B 138

Patent

active

057938024

ABSTRACT:
A mobile radio station for communicating with a beta system can be constructed without providing means for calculating optimum tap gains, the size of a device can be reduced, and power consumption can be saved. A mobile station which tries to start communication sends a communication slot assignment request to a base station at a transmission speed which is so low that a transversal filter is not needed. The base station assigns this mobile station a communication slot and sends information on this communication slot assignment to the mobile station at the transmission speed which is so low that a transversal filter is not needed. The mobile station sends a training sequence to the base station with the assigned communication slot at a high speed. The base station calculates optimum tap gains of the transversal filter from the training sequence held therein and a signal actually received by the an adaptive equalizing mechanism. The base station sends the optimum tap gains to the mobile station at the transmission speed which is so low that the transversal filter is not needed. The mobile station sets to the transversal filter the tap gains sent from the base station and connects the transversal filter. In this way, high-speed communication is started between the base station and the mobile station.

REFERENCES:
patent: 3978407 (1976-08-01), Forney, Jr. et al.
patent: 5212803 (1993-05-01), Uddenfeldt et al.
patent: 5231648 (1993-07-01), Driedger et al.
patent: 5450442 (1995-09-01), Umemoto et al.

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