Patent ID: 7561557
Filing Date: 2009-07-14
Classification: H04B,H04L,H04N

Abstract:
1. A base station apparatus for delivering multimedia information to a plurality of mobile stations by means of multicast or broadcast through a radio channel connected therebetween in a CDMA system, comprising: a receive interface for receiving a frame with a plurality of layered information components comprising the multimedia information and a transmission priority for each layered information component; a plurality of diffusers with different diffusion ratio for diffusing each information component of the frame received by the receive interface according to diffusion ratio which are set to each individual diffuser, each diffuser being provided for one channel; a transmitter for transmitting the plurality of diffused information components; and a controller for controlling the total operations of the base station apparatus, the controller being adapted to control the allocation of each of the information components to a particular diffuser according to the transmission priority, such that an information component with higher transmission priority is allocated to a channel with higher diffusing rate, and the controller is further adapted to control the simultaneous transmission of a frame comprising a plurality of diffused information components, and to differentiate the transmission service to a mobile terminal according to the radio wave circumstances at the location the mobile terminal.