Publications – Details
Utilization of Macrodiversity for the Improvement of System Capacity in UMTS
- Authors:
- Thomas Brüggen and Jochen Trenzinger
- Book Title:
- Proceedings of International Student Conference on Electrical Engineering (POSTER)
- Venue:
- Prague, Czech Republic
- Organization:
- Czech Technical University (CTU)
- Date:
- May 2003
- Page:
- C6
- Language:
- English
Abstract
In the digital communication system UMTS (Universal Mobile Telecommunications System), the system capacity depends on the Radio Resource Management (RRM). The RRM handels, e.g., the dynamic allocation of transmit powers for the individual users.
Macrodiversity in UMTS allows a mobile station (MS) to be connected to more than one single base station (BS). With dedicated RRM strategies, the transmit power necessary for the MS can be partitioned to the different radio links in the downlink. In addition, the "soft handoff" and load distribution between adjacent cells can be realized by macrodiversity. In this paper, a system-immanent effect influencing system capacity and a new dedicated downlink RRM function with power partitioning considering macrodiversity are presented. Their effects on the system capacity defined as number of mobile stations being connected to a BS is examined by the "UMTS System Level Simulator" which we developed at our institute.
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