Motorola Solutions, Inc.

Hua Li

Javier Alfaro

Kurt S Fienberg

Daniel Jose Landron

Kevin D Elliott

David Corvino

Sean Regan

A device, system and method to log a communication device into services using a device identifier is provided. An identity management (IM) computing device receives, from a certificate authority, a first digital certificate, and further receives from a given communication device, a second digital certificate and a device identifier associated with the given communication device. The IM computing device successfully validates the second digital certificate using the first digital certificate, obtains a user identifier associated with the device identifier, and issues, to the given communication device, one or more tokens that include the user identifier, the one or more tokens enabling the given communication device to log into one or more services using the user identifier.

Device, system, and method to log a communication device into services using a device identifier

A portable communication system () maintains mission critical functionality. An accessory () and a handset () are tethered and interoperate such that the accessory operates as the primary controlling device and the handset operates as a secondary device. The accessory () contains a main applications processor () that handles non-mission critical functions. The accessory further contains a mission critical processor () for handling mission critical functions of transmit and receive audio as well as PTT and emergency. In response to a failure of the mission critical processor (), the mission critical functions are maintained by handing over the mission critical functions to the non-controlling device in a manner transparent to the user. The handover is triggered in response to status changes of the mission critical processor or as a result of battery depletion. Audio paths are re-routed through backup paths () negating reliance on processors of the accessory ().

Method and apparatus for maintaining mission critical functionality in a portable communication system

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Plantation, FL, United States of America

Hua Li