Data receiver and method of identifying an operational state of a data transmitter by monitoring environment parameters

A data receiver, comprising:

• an input configured to receive at least one signal from a data transmitter, wherein the at least one signal in each case containing an environment parameter measured by the data transmitter in modulated primary information;
• the data receiver being configured to extract a respective measured environment parameter from the respective modulated primary information in order to obtain at least one measured environment parameter;
• and
• the at least one signal or a generation of the at least one signal being dependent on a clock signal of a clock generator of the data transmitter;
• the data receiver being configured in each case to determine a signal parameter of the at least one signal and to estimate, on a basis of the respective signal parameter, a respective environment parameter to which the clock generator of the data transmitter is exposed, and to thereby obtain at least one estimated environment parameter, as information additional to the modulated primary information;
• wherein the data receiver is configured to identify an operational state of the data transmitter or of a component of the data transmitter on a basis of a comparison between the at least one measured environment parameter and the at least one estimated environment parameter.

A method, comprising the following steps:

• receiving at least one signal from a data transmitter in order to obtain at least one environment parameter of the data transmitter or of an environment of the data transmitter
• determining an operational state of the data transmitter or of a component of the data transmitter on a basis of a comparison between:
• the at least one environment parameter or an environment parameter profile determined on a basis of the at least one environment parameter;
• and
• an environment parameter reference profile which describes an expected environment parameter or an expected environment parameter profile in the environment of the data transmitter;
• the at least one signal containing modulated primary information;
• and
• the data receiver being configured to extract a respective signal parameter from the modulated primary information to obtain the at least one environment parameter as information additional to the modulated primary information;
• the modulated primary information representing at least one of an ID of the data transmitter, a synchronization sequence, payload data or dummy data;
• and
• the signal parameter being selected from at least one parameter selected from the group consisting of:
• a receive carrier frequency,
• a receive time,
• a receive symbol rate,
• a receive modulation index,
• a Doppler frequency,
• a signal-to-noise ratio,
• a signal power,
• a channel phase,
• a channel attenuation,
• a channel dispersion,
• a polarization rotation, and
• a change therein.

A method, comprising the following steps:

• receiving at least one signal from a data transmitter, the at least one signal or a generation of the at least one signal being dependent on a clock signal of a clock generator of the data transmitter, and the at least one signal containing an environment parameter measured by the data transmitter in modulated primary information;
• extracting the environment parameter from the modulated primary information of the at least one signal in order to obtain at least one measured environment parameter;
• determining a signal parameter of the at least one signal;
• estimating, on a basis of the determined signal parameter, an environment parameter to which the clock generator of the data transmitter is exposed, to thereby obtain at least one estimated environment parameter as information additional to the modulated primary information;
• and
• comparing the at least one measured environment parameter and the at least one estimated environment parameter in order to identify an operational state of the data transmitter or of a component of the data transmitter.

A server, comprising:

• hardware and software configured to obtain at least one signal and at least one environment parameter of a data transmitter or of an environment of the data transmitter;
• the server being configured to identify an operational state of the data transmitter or of a component of the data transmitter on a basis of a comparison between:
• the at least one environment parameter obtained from the data transmitter or an environment parameter profile determined on a basis of the at least one environment parameter;
• and
• an environment parameter reference profile that describes an expected environment parameter in the environment of the data transmitter;
• the at least one signal containing modulated primary information;
• and
• the data receiver being configured to extract a signal parameter from the modulated primary information to obtain the at least one environment parameter as information additional to the modulated primary information;
• the modulated primary information representing at least one of an ID of the data transmitter, a synchronization sequence, payload data or dummy data;
• and the signal parameter being selected from at least one parameter selected from the group consisting of:
• a receive carrier frequency,
• a receive time,
• a receive symbol rate,
• a receive modulation index,
• a Doppler frequency,
• a signal-to-noise ratio,
• a signal power,
• a channel phase,
• a channel attenuation,
• a channel dispersion,
• a polarization rotation, and
• a change therein.