Methods and mechanisms to enable priority calls in a cell through pre-emption of other calls

摘要

A method is provided for managing a priority call in a serving cell. The method comprises, when a priority call is in progress in the serving cell, an access device in the serving cell determining an amount of resources available in the serving cell. The method further comprises when the amount of resources available in the serving cell is below a threshold, the access device causing at least one non-priority call in the serving cell to be handed over to a target cell.

主权项

1. A method for managing a priority call in a serving cell, comprising:
when the priority call is in progress in the serving cell, an access device in the serving cell determining an amount of resources available in the serving cell; and when the amount of resources available in the serving cell is below a threshold, the access device causing at least one non-priority call in the serving cell to be handed over to a target cell, wherein the access device includes, in a handover message that triggers the handover to the target cell, a timer value and/or an indicator indicating a cause of the handover, wherein the handover message is sent to a core network element that performs an action that prevents the non-priority call from being handed over or handed back to the serving cell for a duration specified by the timer value, the core network element being one of:
a Mobility Management Entity (MME) associated with the serving cell;an MME associated with the target cell;a Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the serving cell; ora Serving GPRS (General Packet Radio Services) Support Node (SGSN) associated with the target cell.