Common use of Directed Clause in Contracts

Directed. Retry On Congestion will make use of the congestion information in the original as well as the target cell. When a connection is requested and directed retry feature is enabled by the operator, a check will be made to verify that the congestion in the given cell is below an operator defined threshold, before making a request for a traffic channel. If the given cell is already congested, preferred target list generated from measurement reports will be used for directed retry. Flow chart at the end of the document illustrates the steps for this feature. The main thrust is to give more preference to ongoing calls by reserving some capacity per cell for incoming handover requests for ongoing calls. New O&M parameters are provided to allow the operator to specify the traffic load threshold (ranges from 0 to 100%) and the current level of traffic congestion (ranges from 0 to 100%). The purpose of this feature is to add the ability to consider the congestion level of a cell before requesting a traffic channel in that cell as a result of a directed retry. It's capabilities and benefits are: - Can be enabled/disabled from OMC. - Provides the operator with the ability to give preference to on-going calls by reserving capacity on a per cell basis for HO requests.