Patent ID: 8699387
Filing Date: 2014-04-15
Classification: H04W

Abstract:
1. A device for controlling frequency bands used by a user terminal comprising a Frequency Division Duplex (FDD) type transceiver and suitable for being connected to a network making it possible to provide the user with a broadcast and/or multicast service that does not require a backward channel, said network being a FDD network, and having at least one set of frequency blocks of a FDD type, dedicated to the transmission of data frames, and one set of frequency blocks of a non-FDD type distinct from said FDD type, said device comprising: i) means for analyzing at least one item of signaling information received by said user terminal on a frequency block of the FDD type, said means for analyzing being adapted to detect whether the item of signaling information signals the provision of the service on a frequency block of the non-FDD type, and ii) switchover means capable of being activated if said analyzing means detect an item of signaling information signaling the provision of a service on a frequency block of the non-FDD type, in order to receive data frames of the FDD type on the frequency block of the non-FDD type, wherein said switchover means are arranged in order to: before the switchover to the frequency block of the non-FDD type, propose that the user of said user terminal access said service, and address a switchover instruction to said user terminal if its user agrees, and wherein said switchover means are further arranged in order to, in the event of an attempt to set up an outgoing communication by said user terminal or to receive an incoming communication while receiving the broadcasting service on a frequency block of the non-FDD type, instruct said user terminal to switch over to said frequency block of the FDD type, so that said user terminal can make a request to set up a connection in order to initiate said outgoing communication on said frequency block of the FDD type.