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Realization and optimization of soft and softer handover in UMTS networks

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3 Author(s)
Schinnenburg, M. ; Aachen Univ., Germany ; Forkel, I. ; Haverkamp, B.

With the use of user dependent spreading codes in wideband code division multiple access (W-CDMA) networks and the application of multipath aware radio receivers, a novel type of handover execution becomes possible. The soft and softer handover describes the situation in which a mobile terminal communicates with the radio access networks via two or even more different links. Instead of breaking an existing connection to an old base station and establishing a new connection to one neighbouring base station, soft handover seamlessly adds another radio link as a parallel connection. Soft handover parameters, regions, and performance issues are discussed. Results are obtained in an analytical manner as well as by means of dynamic simulation, both considering a realistic dense urban area scenario.

Published in:

Personal Mobile Communications Conference, 2003. 5th European (Conf. Publ. No. 492)

Date of Conference:

22-25 April 2003