US 7,457,321 B2
Method for requesting and granting a shorter slot cycle in a wireless network
Ke-Chi Jang, Plano, Tex. (US); and Chung-Ching Wang, Plano, Tex. (US)
Assigned to Nortel Networks Limited, St. Laurent, Quebec (Canada)
Filed on Jun. 25, 2004, as Appl. No. 10/877,108.
Claims priority of provisional application 60/486725, filed on Jul. 11, 2003.
Prior Publication US 2005/0007973 A1, Jan. 13, 2005
Int. Cl. H04J 3/06 (2006.01)
U.S. Cl. 370—503  [370/311; 370/350; 455/515; 455/434; 455/574] 20 Claims
OG exemplary drawing
 
1. A packet-based wireless communication system, comprising:
a base station controller coupled to a base station and linked by a wireless communication link to a plurality of mobile stations;
the base station controller including a processor that receives a shortened cycle signaling message from one of said plurality of mobile stations during the exchange of communication traffic or in an idle state wherein said message contains a data field for a requested shortened cycle, said data field including a slot cycle index value;
the base station controller creating a signaling message containing a data field for a granted shortened cycle that is transmitted to the mobile station during the exchange of communication traffic or in an idle state of use, said data field including a slot cycle index value;
the base station controller creating a termination message when the shortened cycle will no longer be supported and said base station controller receiving a cancellation message when mobile node wishes to cancel a shortened cycle request before the shortened cycle operation is initiated; and
a wireless communication channel used by the base station monitored according to a start monitoring state set using the granted shortened slot cycle.