| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cellular communication system, a cellular network controller, a wireless subscriber communication unit, a computer program, and a method. <P>SOLUTION: A method is implemented by a wireless communication system comprising at least one communication cell. The method comprises the steps of: transmitting a request message requesting a response by a network controller to one or more wireless subscriber communication unit(s); transmitting a layer-1 response signal by the wireless subscriber communication unit in response to the request message, where the layer-1 response signal is a particular dedicated signature sequence related to a broadcast service and sent over non-synchronised RACH; detecting by the network controller the layer-1 response signal in a particular communication cell; and in response thereto, performing one of the following: (i) entering a point-to-multipoint broadcast mode of operation and (ii) modifying a delivery aspect of the broadcast service in that communication cell. <P>COPYRIGHT: (C)2012,JPO&INPIT |
