Method of handling radio access and to prioritize subscribers in case of an emergency

摘要

In a multi-access environment, applications with high priority can temporarily, when needed, occupy parts or even complete resources from at least one of the accesses in a certain geographical area radio access can be secured for such applications. An area consisting of a number of cells is created In such an area, an application having high priority can have guaranteed resources on one pre-determined access while other “ordinary” traffic is temporarily directed to the other access(es) even if that may result in a lower Quality of Service (QoS) in that particular area.

主权项

1. A method of controlling radio access in a cellular radio network to which mobile stations can establish a radio connection, the cellular radio network comprising at least two radio access technologies, wherein when a situation requiring prioritizing radio resources occurs, the cellular radio network gives prioritized resources to at least some prioritized mobile stations connectable to the cellular radio network by:
the cellular radio network transmitting a message instructing a group of mobile stations not having prioritized status in a prioritization area covered by the cellular radio network to stop accessing the cellular radio network using a first radio access technology, and the mobile stations of the group which receive the message stopping access of the cellular radio network using the first radio access technology identified in the message and using a second radio access technology instead; wherein the situation requiring prioritizing radio resources covers an emergency prioritization area of the cellular radio network, and wherein the method further comprises continuously updating size of the emergency prioritization area by:
increasing the emergency prioritization area to comprise all cells where radio traffic from prioritized mobile stations occurs and all cells neighboring to cells where radio traffic from prioritized mobile stations occurs; anddecreasing the emergency prioritization area to not comprise any cells where no radio traffic from prioritized mobile stations has occurred for a predetermined period of time.