Method and apparatus for recovering group messages in a time div

Details Method and apparatus for recovering group messages in a time div Method and apparatus for recovering group messages in a time div

1996-04-25

1999-03-16

Pham, Chi H.

Pulse or digital communications

Receivers

Interference or noise reduction

34082544, 370470, H04B 710, H04L 102

Patent

active

058839283

ABSTRACT:
In a time diversity system (100) including a radio receiving device (110), a temporary address, a group message associated with the temporary address, and an instruction vector for activating the temporary address are transmitted as original information and, subsequently, duplicate information in a radio signal having frames of data. When the original instruction vector is not received by the receiving device (110), a later frame is searched for the duplicate instruction vector, which, when located, activates the temporary address stored by the receiving device (110). The receiving device (110) then determines which frame capable of reception by the receiving device (110) includes the group message, and the receiving device (110) searches for the temporary address and the group message in that frame. The temporary address is then deactivated.

REFERENCES:
patent: 5168271 (1992-12-01), Hoff
patent: 5546394 (1996-08-01), Eaton et al.
patent: 5657357 (1997-08-01), Jones et al.
patent: 5740532 (1998-04-01), Fernandez et al.

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