On triggering measurements in LTE-NR interworking

A wireless device currently connected to a first radio access node and configured with at least one s-measure by the first radio access node that controls when the wireless device starts performing measurements, the wireless device comprising:

• processing circuitry operable to:
• upon configuration by the first radio access node to perform measurements on a first radio access technology, RAT, starting to perform the measurements when the first radio access node's s-measure criteria is fulfilled;
• and
• upon configuration by the first radio access node to perform measurements on a second RAT, starting to perform the measurements on the second RAT, whether the first radio access node's s-measure criteria is fulfilled or not,
• power supply circuitry configured to supply power to the wireless device.

A wireless device operating in dual connectivity between a first radio access node employing a first radio access technology, RAT, and a second radio access node employing a second RAT, wherein the wireless device is currently connected to both the first radio access node and the second radio access node and is configured with a first s-measure from the first radio access node and a second s-measure from the second radio access node, the wireless device comprising:

• processing circuitry operable to:
• upon configuration by the first radio access node to perform measurements on the first RAT, start to perform the measurements when the first radio access node's s-measure criteria is fulfilled;
• and
• upon configuration by the first radio access node to perform measurements on the second RAT, start to perform the measurements on the second RAT, whether the first radio access node's s-measure criteria is fulfilled or not;
• and
• power supply circuitry configured to supply power to the wireless device.

A system for triggering measurements in LTE-NR interworking, the system comprising:

• a first radio access node employing a first radio access technology, RAT;
• a second radio access node employing a second RAT;
• and
• a wireless device currently connected to the first radio access node and configured with an s-measure by the first radio access node that controls when the wireless device starts performing measurements;
• the wireless device configured, upon configuration by the first radio access node, to perform measurements on the first RAT, wherein the wireless devices starts to perform the measurements when the first radio access node's s-measure criteria is fulfilled;
• and
• wherein the wireless device is further configured, upon configuration by the first radio access node, to perform measurements on the second RAT, wherein the wireless device starts to perform the measurements on the second RAT whether or not an s-measure criteria associated with the first RAT is fulfilled.