Telefonaktiebolaget Lm Ericsson (publ)

Mediatek Singapore Pte. Ltd.

Vidha Agarwal

Marko Niemi

Matti Moisanen

Anne-Lott Hedberg

Marcus Davidsson

Sapna Sangal

Ann-Lott Hedberg

Various solutions for avoiding denial of services with respect to mobile station (MS) and network apparatus in mobile communications are described. A MS may receive a first reject message from a network apparatus in a location area. The first reject message may comprise a first reject cause. The MS may also receive a second reject message from the network apparatus in the location area. The second reject message may comprise a second reject cause. The MS may store an identification of the location area in a forbidden location area list in an event that both the first reject cause and the second reject cause are received from the same location area. The MS may further search for another location area or tracking area.

Method and apparatus for avoiding denial of services in mobile communications

A wireless communication device communicates with a GPRS wireless network where ciphering has gone out of sync between the wireless communication device and the wireless network. The wireless communication device triggers an authentication procedure that re-synchronizes the ciphering. Following the trigger, the wireless communication device and the wireless network continue the authentication procedure so that ciphering parameters can be negotiated again and data communication can resume.

Mitigating drawbacks of ciphering failures in a wireless network

Growing community of inventors

Karnataka, India

Vidha Agarwal