Patent ID: 6885630
Filing Date: 2005-04-26
Classification: H04B,H04H,H04L,H04W,Y02D

Abstract:
1. A method for use in a time division multiple access wireless communication system of simulcasting message information and transmitting dedicated message information from a plurality of proximately located base stations forming a cellular pattern over the same wireless frequency channel, the method comprising the steps of: constructing frames for transmission by said plurality of base stations comprising control information, simulcast message information and dedicated message information within predetermined time slots of said frames, wherein said simulcast message information represents the same information transmitted by said plurality of base stations and said dedicated message information comprises information representing information intended for a single user, said simulcast message information filling time slots having an extended cyclic extension time to mitigate channel dispersion; and allocating said simulcast message information and said dedicated message information to time slots of the same frame predetermined by said control information of said frame; wherein said simulcast message information time slot extension comprises a guard time approximately twenty-five or higher per cent as long as said simulcast message information and said dedicated information comprises a guard time of less than twenty-five per cent of said dedicated information.