Channel impulse response extraction for mobile terminals

A method for determining a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell, comprising:

• presetting, in the neighboring cell, at least two channel impulse response peak locations of respective mobile terminals in first and second predetermined periods with a predetermined peak location change pattern;
• upon receiving communication from a mobile terminal, analyzing channel impulse responses using a training sequence to identify the peak location change pattern with regard to first and second peak location;
• identifying a variation range for a channel impulse response of a primary path of the mobile terminal;
• and
• determining a channel impulse response estimation window for the mobile terminal based on the identified variation range and a preferred estimation window size, where the first predetermined period is a period during which the first peak location is stabilized and the second predetermined period is a period during which the second peak location is stabilized.

A telecommunication system comprising:

• at least one base station servicing a current cell;
• and
• at least one base station servicing a neighboring cell, where one or more mobile terminals from the neighboring cell interfere with communications between one or more mobile terminals of the current cell and the base station servicing the current cell;
• where the base stations of the current and neighboring cells configured to preset at least two channel impulse response peak locations of each mobile terminal therein in two or more predetermined periods so that an expected channel impulse response peak for any period rests in one of the two peak locations;
• and
• where upon receiving communication from the mobile terminals, the base station of the current cell is configured to analyze channel impulse responses using a training sequence to identify the peak locations in two or more periods with regard to the mobile terminal from the neighboring cell and determine a channel impulse response estimation window for the mobile terminal.

A method for performing multi-mobile terminal joint detection, comprising:

• determining a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell;
• extracting the channel impulse response for the at least one mobile terminal from the neighboring cell based on the determined channel impulse response estimation window;
• extracting the channel impulse response for mobile terminals in a current cell;
• and
• performing the multi-mobile terminal joint detection based on the extracted channel impulse response for the at lease one mobile terminal from the neighboring cell and the extracted channel impulse response for the mobile terminals in the current cell.