METHODS AND APPARATUS FOR HETERGENEOUS NETWORK HANDOVER

摘要

A first base station provides radio communication service to user equipments, UEs, and a second base station that provides radio communication service to UEs in adjacent cell service area. The first base station receives cell range expansion, CRE, information from the second base station for expanding the size of the first cell and evaluates handover of one or more UEs with respect to the second cell based on the CRE information. In one embodiment, the second base station determines a CRE related configuration that includes the CRE information with respect to the first cell, sends the CRE information to the first base station. For example, the second base station may send a handover request including the CRE information to the first base station. The second base station also may consider CRE information in handover evaluation.

主权项

1. A method for a first base station that provides radio communication service to user equipments, UEs, and has a first cell service area, where the first cell service area is within or adjacent to a second cell service area of a second base station which provides radio communication service to UEs in the second cell service area, the first base station performing the following steps:
receiving cell range expansion, CRE, information from the second base station for expanding the size of the first cell, and evaluating handover of one or more UEs with respect to the second cell based on the CRE information.