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Replication of local device communication states & preferences in case of device switch or communication swap

IP.com Disclosure Number: IPCOM000240994D
Publication Date: 2015-Mar-17
Document File: 3 page(s) / 159K

Publishing Venue

The IP.com Prior Art Database

Related People

Lauriol, Jean-Michel; Nogueira, Georges; Olivier, François: INVENTOR

Abstract

The invention provides a method to associate the dynamic (so including dynamic device settings of the communication state such as mute audio, video, etc…) communication local preferences of a device A1, and transfer these preferences to multiple devices, for example a device A2, for a given user A and for a given communication. This transfer is performed automatically and immediately after a switch device. The same state on a device A2 as the one defined in a device A1 during a communication, thanks to the intermediate storage in a device B1 of the other party/user B in communication.

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Some communication solutions offer the capability to switch seamlessly from one device/equipment to another during an ongoing communication without losing the communication link. The communication solution can maintain the communication state on the next device, but some specific local elements of the communication are only known by the original device and thus not replicated.

The invention provides a method to associate the dynamic (so including dynamic device settings of the communication state such as mute audio, video, etc…) communication local preferences of a device A1, and transfer these preferences to multiple devices, for example a device A2, for a given user A and for a given communication. This transfer is performed automatically and immediately after a switch device. The same state on a device A2 as the one defined in a device A1 during a communication, thanks to the intermediate storage in a device B1 of the other party/user B in communication.

The information that describes the state of a given device or communication session is stored in an information structure that is created and stored in a first device A1 during the communication. This information structure will be called information element in the following. The information element is updated as soon as any context or preference information is modified in current device the communication. The information element can be implemented in a specific file.

The information element shall be encrypted, so that it can be read only by devices that know the secret/key to decrypt the information in clear text. In order to keep the privacy property, the secret/key has to be shared only by the devices owned by user A (devices A1 and A2 for example). As a consequence, any device owned by user B that could store or transmit the said information element is not able read the information element originated by user A.

The algorithm used to encrypt the information element must then be based on symmetric cryptography to allow using the same secret/key used for both encryption and decryption. The Secret/key configuration implementation is not described in the scope of this invention.

The information element (encrypted or not in the following) is transmitted from device A1 to a storage point where the device A2 can retrieve it. In our invention, the storage point in transit is the device B1 which is in communication. The information element can then be retrieved by device A2, which can reconfigure itself in the same state as the previous device A1 for a given user A.

In the same manner, a given device can hold several ongoing communications. A unique information element is associated to each communication. Each information element is maintained for the complete duration of an active communication. It is identified by a “communication ID” that is part of the information element structure that also contains:

·         Communication properties:

o    Communication ID

o    The other parties’ identity (user...