6 results about "Mobile radio" patented technology

A mobile radio telecommunications system is described in which the same user message is transmitted with forward error correction (FEC) codes on three separate channels to a receiver. The FEC codes for the three signals are different, e.g. different bits are punctured in the first signal compared with the second signal and so on. The receiver includes a plurality of data receivers for extracting the receiver signals as well as a forward error correction decoder for substantially simultaneously decoding the differently forward error correction coded signals. The extracted decoded signals can be used individually or combined in a variety of ways to improve reception.

A mobile radio communication system which allows stored messages to be broadcasted to any number of destinations in the mobile radio communication system which allows communication of stored messages, such as electronic mails or voice mails is provided. A broadcast group is previously registered in a second database 26, and if a mail having a destination address corresponding to the broadcast group is received, a message is broadcasted to each of members included in the corresponding broadcast group. At this time, replacing the sender's address of the broadcast message with the destination address corresponding to the broadcast group allows the reply message to the broadcast message to be handled as a broadcast message to the same members.

This invention relates to a communication system (200), user equipment (201,211) and method of performing a conference call. The communication system (200) employs discontinuous transmission and has a plurality of user equipment (201, 211, 213, 215) and a fixed network (205, 207, 208). It further comprises a speech metric processor (225) for determining if speech is originating at the user equipment. The system also comprises a silence descriptor frame generator (229) which generate silence descriptor frames if no speech is originating and a conference call processor (231) for determining if a call involving the user equipment is a conference call. Furthermore the communication system comprises means (229, 239) for suppressing silence descriptor information of the silence descriptor frames if the call is a conference call. The invention is applicable to cellular mobile radio communication systems such as UMTS.

A communication system and a method for processing a mobile radio message exchanged between a mobile radio terminal in a mobile radio communication network and a message conversion processor are proposed with a switching network having at least one processor and linked to a fixed network communication network and a mobile radio communication network, having a device, which is configured to use a mobile radio message to create a peer-to-peer message according to a peer-to-peer-communication protocol, so that said message can be transmitted to a processor in the fixed network communication network and/or to use a peer-to-peer message requested by a mobile radio terminal to create a mobile radio message according to a mobile radio communication protocol, so that the mobile radio message can be transmitted to the mobile radio terminal.

The present solution is directed to a system for seamlessly communicating among a plurality of mobile devices comprising a private mobile radio module. The system includes a plurality of mobile devices establishing a group. Each of the plurality of mobile devices comprises a cellular communications module and a private mobile radio module to communicate with other mobile devices in the group using private radio communications. A mobile device of the group in audio communications with one or more mobile devices of the group using private radio communications via the private mobile radio module. A roaming manager of each of the plurality of mobile devices determines that the mobile device is no longer in communication via the private mobile radio module and responsive to the roaming manager, the private mobile radio module is deactivated and the cellular communications module is activated. Each of the plurality of mobile devices of the group establishes a connection with the server using their cellular communications module, the server providing audio communications for the group.