Information on Reference Signal Structure for Neighbouring Cell Measurements

A radio base station comprising:

• a transceiver arranged to broadcast a first reference signal that has a physical structure that comprise normal sub-frames allocated to time slots, the first physical structure further involving the first reference signal being carried by predefined OFDM symbols;
• wherein the transceiver is further arranged to broadcast information indicative of a second physical structure for carrying a second reference signal in a neighbouring cell.

A method implemented by a terminal that is camping in a first cell which is transmitting a reference signal that has a first physical structure, the method comprising:

• detecting a broadcast indication of a second physical structure that carries a second reference signal in a cell neighbouring the first cell, wherein the indication relates to the allocation of sub-frames in a downlink direction;
• and
• measuring the second reference signal in downlink sub-frames according to the detected indication.

A mobile terminal comprising a transceiver and a computer, wherein the computer with software and via the transceiver is operable to:

• detect an indication that is broadcast in a first cell, wherein the indication relates to the allocation of sub-frames in a downlink direction for carrying a second reference signal in a cell neighbouring the first cell;
• and
• measure the second reference signal in the downlink direction sub-frames according to the detected indication.