Method and an arrangement for a mobile telecommunications network
OwnerTor Björn Mindeinventor
Life of this patent
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Abstract
The present invention relates to a user device and a method for providing a solution for how to make automatic update of the presence state in a mobile device in a communication service e.g. a buddy list in a chat service. The solution is based on that the user device analyzes the background ‘“noise” 5 (sound) of the audio environment, and utilizes this analysis for determining a presence state of the user of the mobile device.
Claims16
A method in a user device adapted to communicate with a mobile telecommunication network, the method comprises the steps of:
- receiving an audio signal representing surrounding background noise,
- deriving a spectrum vector representing at least the surrounding background noise,
- classifying the derived spectrum vector into a pre-defined vector class by spectrum classifier,
- determining a presence state in response to the pre-defined vector class to which the spectrum vector belongs, and
- sending the determined presence state to a presence server.
A user device, adapted to communicate with a mobile telecommunication network, the user device comprising:
- a receiver for receiving an audio signal representing surrounding background noise;
- a spectrum analyzer for deriving spectrum vector representing at least the surrounding background noise;
- a classifier for classifying the derived spectrum vector into a pre-defined vector class by spectrum classifier;
- a presence state calculator for determining a presence state in response to the pre-defined vector class to which the spectrum vector belongs;
- and a transmitter for sending the determined presence state to a presence server.
Dependencies are inferred from the claim text.