1. A user equipment device (UE) comprising: physical layer circuitry configured to transmit and receive radio frequency electrical signals with one or more nodes of a radio access network; and processing circuitry configured to: receive system information via the network, wherein the system information indicates cell specific priority and frequency priority; identify candidate cells that have a cell specific priority that is higher than a cell priority of the current serving cell, have a frequency priority that is higher than a frequency priority of a current serving frequency, and satisfy a cell suitability criterion; and determine a candidate cell from the identified candidate cells to replace the current serving cell for communicating with the network.