Reestablishment procedure for an emergency call

摘要

Traditional rules that apply to cell selection are overridden to allow cell selection on an acceptable cell, in addition to cell selection on a suitable cell. Once a mobile device acquires service on an acceptable cell, mobile device can inform network of the emergency call in progress or initiation of an emergency call, which allows network to perform necessary actions to support the emergency call during establishment/reestablishment.

主权项

1. A method performed by a mobile device for reestablishment for emergency calls, comprising:
communicating, using the mobile device, in an emergency call in progress over a connection via a first cell; detecting, by the mobile device, a radio link failure at the mobile device for the emergency call in the connection via the first cell; and reestablishing, by the mobile device, the connection for the emergency call via a second cell without considering whether the second cell could offer normal service to the mobile device to continue the emergency call without releasing the emergency call.