Patent ID: 6154457
Filing Date: 2000-11-28
Classification: H04B,H04J

Abstract:
A method for operating a mobile station, comprising the steps of:receiving a forward channel from a base station, the forward channel being transmitted to contain repeating frames each comprising N time slots, individual ones of the time slots including a synchronization word;correlating a single i.sup.th one of the N time slots using a first correlation sequence and a second correlation sequence to obtain a first correlation result and a second correlation result, respectively, the first correlation sequence being one that is known to be transmitted in the i.sup.th one of the time slots when operating as a half-rate channel, and the second correlation sequence being one that is known to be transmitted in the i.sup.th one of the time slots when operating as a full-rate channel; anddeclaring the forward channel to be one of a half-rate channel or a full-rate channel based on the first and second correlation results that are obtained from the single i.sup.th one of the N time slots.