Data transmission within a spread-spectrum communication system

Details Data transmission within a spread-spectrum communication system Data transmission within a spread-spectrum communication system

1999-01-13

2000-07-18

Chin, Stephen

Pulse or digital communications

Spread spectrum

370508, 370519, H04B 1500

Patent

active

060917571

ABSTRACT:
Remote units (113) having large amounts of data to transmit will be dynamically assigned Orthogonal Variable Spreading Factor (OVSF) codes corresponding to higher data rates and remote units (113) with lower amounts of data to be transmitted will be assigned OVSF codes corresponding to lower data rates. The reduction of the data rate between the base station (100) and remote units (113) occurs by changing the current OVSF codes utilized by both the remote units (113) and the base station (100). In order to eliminate collisions among remote units transmitting data, a remote units transmission is advanced and retarded in time based on an amount of offset from a frame boundary.

REFERENCES:
patent: 4827474 (1989-05-01), Le Goffic et al.
patent: 5317571 (1994-05-01), Marcel et al.
patent: 5668804 (1997-09-01), Suonvieri
patent: 5898697 (1999-04-01), Hurme et al.

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