Method for inter-radio access technology cell reselection

摘要

A method for performing cell reselection first determines a current cell selection quality value. The cell selection quality value is compared to a predetermined threshold. Measurements of neighboring cells are taken if the cell selection quality value is less than or equal to the predetermined threshold. Measurements can be taken of intra-frequency cells, inter-frequency cells, and inter-radio access technology cells. If a neighboring cell is found that is better than the current cell based on the measurements, then the better neighbor cell is reselected to.

主权项

1. A method for performing cell reselection implemented in a wireless transmit receive unit (WTRU), the method comprising:
receiving priority information in a current cell associated with a current radio access technology (RAT), the priority information indicating a cell priority of an inter-RAT cell associated with a candidate RAT relative to the current cell associated with the current RAT; determining whether the inter-RAT cell associated with the candidate RAT has a higher priority than the current cell associated with the current RAT based on the priority information; determining a cell selection value of the current cell; determining to perform quality measurements of the inter-RAT cell associated with the candidate RAT on condition that it is determined that the inter-RAT cell associated with the candidate RAT has a higher priority than the current cell associated with the current RAT; and determining to perform quality measurements of the inter-RAT cell associated with the candidate RAT on condition that it is determined that the inter-RAT cell associated with the candidate RAT does not have a higher priority than the current cell in the current RAT and that the cell selection value of the current cell is less than or equal to a predetermined threshold.