| US 7,499,441 B2 | ||
| Method for allowing a subscriber unit to access a channel for voice transmissions | ||
| David G. Wiatrowski, Woodstock, Ill. (US); Thomas B. Bohn, McHenry, Ill. (US); Thomas J. Senese, Schaumburg, Ill. (US); John P. Belmonte, Elk Grove Village, Ill. (US); and Terry K. Mansfield, Palatine, Ill. (US) | ||
| Assigned to Motorola, Inc., Schaumburg, Ill. (US) | ||
| Filed on Nov. 09, 2004, as Appl. No. 10/984,431. | ||
| Claims priority of provisional application 60/583723, filed on Jun. 29, 2004. | ||
| Prior Publication US 2006/0013188 A1, Jan. 19, 2006 | ||
| Int. Cl. H04B 7/212 (2006.01); H04Q 11/00 (2006.01) | ||
| U.S. Cl. 370—347 [370/260] | 18 Claims |
| 1. In a wireless communications system whereby the wireless communications system comprises a plurality of subscriber units
and a plurality of base radios, a method for allowing a first subscriber unit to access a channel for voice transmissions,
the method comprising the steps of:
determining that the first subscriber unit is provisioned for polite access to the channel, wherein the first subscriber unit
considers what type of communications are currently on the channel before accessing the channel for its own communication,
whereby the first subscriber unit is characterized by a first color code and a first talkgroup ID;
examining the voice transmissions on the channel for voice transmissions that are from a second subscriber unit with a second
color code and a second talkgroup ID; and
if the first talkgroup ID and the second talkgroup ID match, then allowing the first subscriber unit to access the channel
for voice transmissions even though the channel is being used for voice transmissions by the second subscriber unit.
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