User equipment and methods for measurement of reference signal received quality

A method of measurement reporting at a User Equipment (UE) configured to operate in a 3GPP LTE cellular network, the method comprising:

• receiving, from an Evolved Node-B (eNB), a Reference Signal Received Quality (RSRQ) measurement type indicator that specifies either a legacy RSRQ determination or a non-legacy RSRQ determination for use in generation of a measurement reporting trigger;
• and
• transmitting a measurement report to the eNB in response to the generation of the measurement reporting trigger,
• wherein the measurement reporting trigger is generated based at least partly on a comparison of a measured RSRQ for a serving cell with a measured RSRQ for a target cell;
• and
• wherein the RSRQs for the serving cell and target cell are both determined according to the RSRQ measurement type indicator.

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors to perform operations for measurement reporting in a 3GPP LTE cellular network, the operations to configure the one or more processors to:

• receive, at a User Equipment (UE), signaling from an Evolved Node-B (eNB) to indicate either a first or a second Reference Signal Received Quality (RSRQ) measurement type for both a serving cell and a target cell;
• determine an RSRQ of the serving cell and an RSRQ of the target cell based on the indicated RSRQ measurement type;
• and
• transmit a measurement report to the eNB based on the RSRQ of the serving cell and the RSRQ of the target cell,
• wherein for the second RSRQ measurement type, the RSRQ is determined based on an RSSI that is based on a received power of one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols received at the UE.

An Evolved Node-B (eNB) configured to operate in a 3GPP LTE cellular network, the eNB comprising hardware processing circuitry configured to:

• transmit signaling to a User Equipment (UE) to indicate either a first or a second Reference Signal Received Quality (RSRQ) measurement type for both a serving cell and a target cell;
• and
• receive a measurement report from the UE that is based on the RSRQ of the serving cell and the RSRQ of the target cell,
• wherein for the first RSRQ measurement type, the RSRQ for both the serving cell and the target cell is determined from a Received Signal Strength Indicator (RSSI) over one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols in which common reference signals (CRS) are included;
• and
• wherein for the second RSRQ measurement type, the RSRQ is determined for both the serving cell and the target cell from an RSSI that is based on a received power of one or more OFDM symbols received at the UE.