Circuitry (208a, 208b) for a terminal device for use in a wireless telecommunications system comprising the terminal device, a source network access node and one or more candidate target network access nodes (205, 206), wherein the circuitry comprises controller circuitry and transceiver circuitry configured to operate together such that the circuitry is operable to: establish a first measurement of radio channel conditions between the terminal device and a first candidate target access node, and a second measurement of radio channel conditions between the terminal device and the source network access node; determine if the first measurement of radio channel conditions for the first candidate target access node satisfies a first predefined criterion, wherein the first predefined criterion is satisfied if a quality characteristic for the radio channel conditions indicated by the first measurement at the time of the first measurement exceeds a quality characteristic for radio channel conditions indicated by the second measurement at the time of the second measurement by a first predefined threshold, and if so, transmit to the source network access node an indication that the first measurement of radio channel conditions for the first candidate target network access node satisfies the first predefined criterion; receive, from the source network access node, and store an indication of first connection information for use by the terminal device for connecting to the first candidate target network access node; establish a third measurement of radio channel conditions between the terminal device and the first candidate target network access node; determine if the third measurement of radio channel conditions satisfies a second predefined criterion, wherein the second predefined criterion is satisfied if a quality characteristic for the radio channel conditions indicated by the third measurement at the time of the third measurement exceeds a second predefined threshold, and if so, transmit to the source network access node an indication that the third measurement of radio channel conditions for the first candidate target network access node satisfies the second predefined criterion, wherein the second predefined criterion is different to the first predefined criterion; receive, from the source network access node, an indication the terminal device should connect to the first candidate target network access node, and, in response thereto, transmit signalling to the first candidate target network access node using the stored first connection information to initiate a handover of a connection of the terminal device from the source network access node to the first candidate target network access node. establish a first measurement of radio channel conditions between the terminal device and a first candidate target access node, and a second measurement of radio channel conditions between the terminal device and the source network access node; determine if the first measurement of radio channel conditions for the first candidate target access node satisfies a first predefined criterion, wherein the first predefined criterion is satisfied if a quality characteristic for the radio channel conditions indicated by the first measurement at the time of the first measurement exceeds a quality characteristic for radio channel conditions indicated by the second measurement at the time of the second measurement by a first predefined threshold, and if so, transmit to the source network access node an indication that the first measurement of radio channel conditions for the first candidate target network access node satisfies the first predefined criterion; receive, from the source network access node, and store an indication of first connection information for use by the terminal device for connecting to the first candidate target network access node; establish a third measurement of radio channel conditions between the terminal device and the first candidate target network access node; determine if the third measurement of radio channel conditions satisfies a second predefined criterion, wherein the second predefined criterion is satisfied if a quality characteristic for the radio channel conditions indicated by the third measurement at the time of the third measurement exceeds a second predefined threshold, and if so, transmit to the source network access node an indication that the third measurement of radio channel conditions for the first candidate target network access node satisfies the second predefined criterion, wherein the second predefined criterion is different to the first predefined criterion; receive, from the source network access node, an indication the terminal device should connect to the first candidate target network access node, and, in response thereto, transmit signalling to the first candidate target network access node using the stored first connection information to initiate a handover of a connection of the terminal device from the source network access node to the first candidate target network access node.