Method and apparatus for a talkgroup call in a wireless CDMA sys

Details Method and apparatus for a talkgroup call in a wireless CDMA sys Method and apparatus for a talkgroup call in a wireless CDMA sys

1997-10-27

1999-12-21

Olms, Douglas W.

Multiplex communications

Special services

Conferencing

370342, 370335, 455518, H04L 1216, H04Q 1100, H04B 7216, H04B 104

Patent

active

06005848&

ABSTRACT:
In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-group (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound code (416-417). The entire talkgroup is assigned an outbound code (415). Members of the sub-group may simultaneously transmit voice information (410-411) using the at least one inbound code, which voice information is summed (412) and re-transmitted to the talkgroup using the outbound code. Subscriber units in the talkgroup, but not included in the sub-group, are allowed to transmit voice information only after requesting, and receiving, an additional inbound code.

REFERENCES:
patent: 5506837 (1996-04-01), Sollner et al.

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