The call processing state machines defined by the CDMA standards (e.g., IS-95 and IS-2000) are modified to include a “traffic channel” substate indicative of the mobile station processing at least one active call. Call control (CC) state machines of various types are also provided to control the...http://www.google.fr/patents/US20070217597?utm_source=gb-gplus-shareBrevet US20070217597 - METHOD AND APPARATUS FOR CONCURRENTLY PROCESSING MULTIPLE CALLS IN A SPREAD SPECTRUM COMMUNICATIONS SYSTEM
METHOD AND APPARATUS FOR CONCURRENTLY PROCESSING MULTIPLE CALLS IN A SPREAD ...
Numéro de demande: 11/624,187 Numéro de publication: US 2007/0217597 A1 Date de dépôt: 17 janv. 2007 Brevet délivré: US7466741 ( Date de délivrance 16 déc. 2008)