Channel sounding using multiple sounding configurations

A base station comprising a baseband processor configured to:

• determine multiple different sets of configuration parameters for uplink sounding signal transmissions for a mobile terminal, each of the multiple different sets of configuration parameters comprising frequency-domain and time-domain parameters, wherein each of the time-domain parameters indicates:
• a time offset, in number of subframes, of a sounding signal;
• and
• a period, in number of subframes, of the sounding signal;
• and
• transmit information representing the multiple different sets of configuration parameters to the mobile terminal, thereby enabling the mobile terminal to generate different sounding signals.

A method of configuring uplink sounding transmissions by a mobile terminal, the method comprising:

• receiving, from a base station, information representing multiple different sets of configuration parameters for uplink sounding signal transmissions for the mobile terminal, each of the multiple different sets of configuration parameters comprising frequency-domain and time-domain parameters, wherein each of the time-domain parameters indicates:
• a time offset, in number of subframes, of a sounding signal;
• and
• a period, in number of subframes, of the sounding signal;
• and
• generating different sounding signals based on the multiple different sets of configuration parameters.

A mobile terminal comprising a baseband processor configured to:

• receive, from a base station, information representing multiple different sets of configuration parameters for uplink sounding signal transmissions for the mobile terminal, each of the multiple different sets of configuration parameters comprising frequency-domain and time-domain parameters, wherein each of the time-domain parameters indicates:
• a time offset, in number of subframes, of a sounding signal;
• and
• a period, in number of subframes, of the sounding signal;
• and
• generate different sounding signals based on the multiple different sets of configuration parameters.