Patent ID: 8848675
Filing Date: 2014-09-30
Classification: H04B,H04J,H04W

Abstract:
1. A method for transmitting a broadcast/multicast signal in a mobile communications network from a base station operating in a Single Frequency Network (SFN) that includes one or more other base stations transmitting the broadcast/multicast signal, the method comprising: obtaining a first pilot symbol sequence for each slot of one or more frames of the broadcast/multicast signal, so that the first pilot symbol sequence varies for each slot of a given frame in dependence on a scrambling code corresponding to the slot; channelization code spreading the first pilot symbol sequence for each slot; scrambling the spread first pilot symbol sequence for each slot, using the scrambling code corresponding to the slot, to form a first pilot channel; and transmitting the first pilot channel signals so that the first pilot channel signals are time-division multiplexed with one or more traffic channel signals transmitted during each slot; and transmitting, during all slots of the one or more frames, a second pilot channel signal that is code division multiplexed with the first pilot channel signal.