Data Transmission Method and System for Forming a Global Emergency Call/Warning System Especially Using a Satellite Navigation System Such as Galileo

A communication system (1) preferably to be used in a global emergency call/warning system, with at least one communication device (20, 21, 22) and with a central facility (10) connected to the communication device (20, 21, 22) for exchanging text information,

• wherein the connection between the communication device (20, 21, 22) and the central facility (10) is made via at least one satellite (30) and
• wherein data transmitted by the communication device (20, 21, 22) contain additional information about the current position of the communication device (20, 21, 22) or data transmitted by the central facility (10) contain additional information about the local relevance of the text information.

A method for exchanging text information between a communication device (20, 21, 22) and a central facility (10), wherein the connection between the communication device (20, 21, 22) and the central facility (10) is made via at least one satellite (30), and

• wherein data transmitted by the communication device (20, 21, 22) contain additional information about the current position of the communication device (20, 21, 22) or data transmitted by the central facility (10) contain additional information about the local relevance of the text information.

An information system (1) for transmitting messages from a central transmitting facility (10) to a multiplicity of communication devices (20, 21, 22), wherein data transmitted by the central transmitting facility (10) contain, apart from the messages, additional information which provides information about a local and/or user-specific relevance of the messages, and

• wherein each communication device (20, 21, 22), by evaluating the additional information, first checks whether the messages are relevant to the respective communication device (20, 21, 22) and processes or reproduces, respectively, the messages in dependence on this check.

A communication device (20, 21, 22) for use in an information system (1), having

• receiving means for receiving data which contain messages and additional information which provides information about a local and/or user specific relevance of the messages,
• evaluating means for checking by means of the additional information whether the messages are relevant to the communication device, and
• processing and reproducing means for processing and reproducing, respectively, the messages in dependence on the result of the check by the evaluating means.

A method for transmitting messages to a multiplicity of communication devices (20, 21, 22), wherein transmitted data contain, apart from the messages, additional information which provides information about a local and/or user-specific relevance of the messages, and

• wherein, by evaluating the additional information, a check is first made whether the messages are relevant to the respective receiver (20, 21, 22) and the messages are processed or reproduced, respectively, in dependence on this check.

A communication system (1) comprising a communication device (20, 21, 22) and a central facility, formed by a satellite (30), for receiving information to be transmitted by the communication device (20, 21, 22), wherein data with regard to a predetermined reception time (tE) for the information and/or a predetermined reception frequency (fE) are transmitted to the communication device (20, 21, 22) as part of an initialization procedure, and

• wherein the communication device (20, 21, 22) determines a suitable time (ts2) for transmitting the information and/or a suitable transmission frequency (fs2) on the basis of supplementary information with regard to the positions and/or movements of the communication device (20, 21, 22) and of the satellite (30).

A communication device (20, 21, 22) comprising transmitting means for transmitting information to a central facility formed by a satellite (30), wherein the transmitting means are constructed for determining a suitable time (ts2) for transmitting the information and/or a suitable transmission frequency (fs2) in dependence on previously established data with regard to a predetermined reception time (tE) and/or a predetermined reception frequency (fE) and on the basis of supplementary information with regard to the positions and/or movements of the communication device (20, 21, 22) of the satellite (30).

A method for transmitting information from a communication device (20, 21, 22) to a central receiving facility formed by a satellite (30), wherein a predetermined reception time (tE) for the information and/or a predetermined reception frequency (fE) are established as part of an initialization procedure, and

• wherein a suitable time (ts2) for transmitting the information and/or a suitable transmission frequency (fs2) are determined on the basis of supplementary information with regard to the positions and/or movements of the communication device (20, 21, 22) and of the satellite (30).

A system (1) preferably to be used in a global warning system for transmitting messages from a central transmitting facility via a satellite (30) to at least one communication device (20, 21, 22), wherein data transmitted by the satellite (30) contain an information component (70-2 to 75-2) containing the messages and a coordination component (70-1 to 75-1) which is used by the communication device (20, 21, 22) for synchronizing to the satellite (30), wherein the data containing the messages are transmitted at least twice by the satellite (30), and the communication device (20, 21, 22) adds the information components (70-2 to 75-2) received during the multiple transmissions in the correct phase and determines messages from the aggregate signal (76) formed during this process.

A system (1) preferably to be used in a global warning system for transmitting messages from a central transmitting facility to at least one communication device (20, 21,77 22), wherein data transmitted by the central transmitting facility contain an information component (70-2 to 75-2) containing the messages, and a coordination component (70-1 to 75-1) which is used by the communication device (20, 21, 22) for synchronizing to the transmitting facility, wherein the coordination component (70-1 to 75-1) is selected to be superproportionally long,

• the data containing the messages are transmitted at least twice by the transmitting facility and the communication device (20, 21, 22) adds the information components (70-2 to 75-2) received during the multiple transmissions in the correct phase and determines the messages from the aggregate signal (76) formed during this process.

A communication device (20, 21, 22) preferably to be used in a global warning system (1),

• comprising receiving means for receiving data which contain an information component (70-2 to 75-2) containing messages, and a coordination component (70-1 to 75-1), wherein the coordination component (70-1 to 75-1) of the data is used by the receiving means of the communication device (20, 21, 22) for synchronizing to a transmitting facility transmitting the data, and
• wherein the receiving means are also constructed for adding the information components (70-2 to 75-2) received during a multiple transmission of the data in the correct phase and determining the messages from the aggregate signal (76) formed during this process.

A method for transmitting messages from a central transmitting facility via a satellite (30) to at least one communication device (20, 21, 22), wherein data transmitted by the satellite (30) contain an information component (70-2 to 75-2) containing the messages, and a coordination component (70-1 to 75-1) which is used by the communication device (20, 21, 22) for synchronizing to the satellite (30), wherein the data containing the messages are transmitted at least twice and the information components (70-2 to 75-2) received during the multiple transmissions are added in the correct phase and messages are determined from the aggregate signal (76) formed during this process.

A communication system (1) comprising a transmitting facility (30) for transmitting data signals and a communication device (20, 21, 22) for receiving these data signals, wherein the communication device (20, 21, 22) matches its behavior for receiving the data signals on the basis of supplementary information which is transmitted to the communication device (20, 21, 22) separately from the data signals.

A communication device (20, 21, 22) for use in a communication system, wherein the communication device (20, 21, 22) has receiving means (E1) for receiving data which are transmitted by a transmitting facility (30), wherein the communication device (20, 21, 22) also has means (E2) for receiving supplementary information which contains information with regard to certain characteristics of the data to be received, wherein the receiving means (E1) match their behavior for receiving the data on the basis of the supplementary information.

A method for transmitting data from a transmitting facility (30) to a communication device (20, 21, 22), wherein the communication device (20, 21, 22) matches its behavior for receiving the data on the basis of supplementary information which is transmitted to the communication device (20, 21, 22) separately from the data.