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Capacity of an integrated LCD/UDD WCDMA cellular network

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1 Author(s)
Burley, S. ; Motorola, UK

Analytical characterisation of low constraint delay (LCD) traffic on the uplink in a WCDMA cellular network is a well-understood procedure. However, integration of UDD traffic into existing models is not immediately obvious. For example, a common approach to uplink capacity estimation of an integrated LCD/UDD WCDMA system simply involves choosing an activity factor that represents the latency of a UDD service when computing the pole capacity. Whilst adopting this approach allows us to compute the number of simultaneous UDD users that can be supported an the air interface, it does not take into account the GoS requirements of the UDD services under consideration. Moreover, the notion of priority between delay tolerant/intolerant services is not incorporated in this approach. In addition to the uplink, integrated LCD/UDD dimensioning of the downlink in a WCDMA cellular network has received little/no attention in the open literature. As a result, the focus of this paper is two-fold. First, we formulate a new pole capacity-based approach to the integrated LCD/UDD uplink capacity estimation problem. Secondly, we give a pole condition on the power requirements of the Node B, and show that the approach for integrated LCD/UDD dimensioning developed for the uplink can be readily applied to the downlink

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3G Mobile Communication Technologies, 2001. Second International Conference on (Conf. Publ. No. 477)

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