Patent ID: 7831254
Filing Date: 2010-11-09
Classification: H04W,Y02D

Abstract:
1. A cell re-selection method of a terminal device including a radio unit which adopts code division multiple access (cdma), comprising the steps of: a cell re-selection starting step of starting cell re-selection in each desired cell re-selection cycle, an in-zone cell monitoring step of checking an in-zone cell for a predetermined period of time to record a cell confirmed an in-zone cell and the number of times of confirmation, a reported in-zone cell selecting step of selecting a reported in-zone cell with reference to a result obtained at said in-zone cell monitoring step, and a cell re-selection executing step of collating said reported in-zone cell obtained at said reported in-zone cell selecting step and an in-zone cell as of before cell re-selection start to extend said desired cell re-selection cycle such that an elapsed time until an in-zone cell is monitored is increased, wherein a cell whose said number of times of confirmation which is recorded at the in-zone cell monitoring step is not less than a predetermined number of times is considered as an in-zone cell, and an in-zone cell as of before cell re-selection start and an in-zone cell confirmed at the in-zone cell monitoring step are collated at said cell re-selection executing to extend said desired cell re-selection cycle when said collation results in finding that the cells are the same.