Method and apparatus for detecting high-mobility state of mobile terminal and related device

An apparatus for detecting whether a mobile terminal is in a high-mobility state or not, comprising:

• a channel estimator for estimating a channel impulse response (CIR) based on received signal samples;
• a channel equalizer for performing channel equalization based on said received signal samples and the estimated channel impulse response;
• computing means for computing at least one characteristic value for a particular region of a relevant time slot based on the equalized signal samples;
• and
• deciding means for deciding if said at least one characteristic value satisfies a predetermined condition set for mobile terminals that are in a high-mobility state, to detect whether said mobile terminal is in a high-mobility state or not.

A receiver, comprising:

• receiving means for receiving signals and generating received signal samples;
• a channel estimator for estimating a channel impulse response based on said received signal samples;
• a channel equalizer for performing channel equalization based on said received signal samples and the estimated channel impulse response;
• computing means for computing at least one characteristic value for a particular region of a relevant time slot based on the equalized signal samples;
• and
• deciding means for deciding if said at least one characteristic value satisfies a predetermined condition set for receivers that are in a high-mobility state to detect whether said receiver is in a high-mobility state or not.

A mobile terminal comprising a receiver, said receiver comprising:

• receiving means for receiving signals and generating received signal samples;
• a channel estimator for estimating a channel impulse response based on said received signal samples;
• a channel equalizer for performing channel equalization based on said received signal samples and the estimated channel impulse response;
• computing means for computing at least one characteristic value for a particular region of a relevant time slot based on the equalized signal samples;
• and
• deciding means for deciding if said at least one characteristic value satisfies a predetermined condition set for mobile terminals that are in a high-mobility state to detect whether said mobile terminal is in a high-mobility state or not.