System and method for call processing in a mobile device with position location capability
First Claim
1. A method for call processing operating on a mobile device, comprising:
- placing an emergency call;
opening a communication channel to an emergency call center;
receiving a request for position location information;
suspending a voice part of the communication channel;
retrieving a warning from a memory of the mobile device;
activating the warning while the voice part of the communication channel is suspended;
collecting position location data while the voice part of the communication channel is suspended;
transmitting position location information using a data part of the communication channel;
resuming the voice part of the communication channel; and
deactivating the warning.
1 Assignment
0 Petitions
Accused Products
Abstract
An exemplary wireless device includes a communication radio and a position location receiver. When the wireless device has established a call with the communication radio, and a request for position location is received, the communication radio is deactivated while the position location information is collected using the position location receiver. A local warning message is communicated to the user of the mobile device while the communication radio is disabled. The warning message may be a text display, a graphical display, an audio message, or an input-key challenge. By generating and presenting the local warning message, the user is made aware that the lack of normal call activity is expected and temporary. After the position location information is collected, the call is resumed with the communication radio, and the position location information is transmitted. Since the mobile device is now acting with normal call activity, the local warning is removed.
25 Citations
24 Claims
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1. A method for call processing operating on a mobile device, comprising:
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placing an emergency call; opening a communication channel to an emergency call center; receiving a request for position location information; suspending a voice part of the communication channel; retrieving a warning from a memory of the mobile device; activating the warning while the voice part of the communication channel is suspended; collecting position location data while the voice part of the communication channel is suspended; transmitting position location information using a data part of the communication channel; resuming the voice part of the communication channel; and deactivating the warning. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile wireless device, comprising:
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a radio frequency (RF) receive chain; a communication radio and a GPS receiver sharing the RF receive chain; switch circuitry for allowing the communication radio to use the RF receive chain in a first state or the GPS receiver to use the RF receive chain in a second state; detection circuitry acting responsive to the GPS receiver using the RF receive chain; a memory holding a predetermined warning message, the memory residing in the mobile wireless device; and an output device operably coupled to the detection circuitry, the output device configured to present the predetermined warning message by retrieving it from the memory when the GPS receiver is using the RF receive chain, the output device further configured to remove the predetermined warning message when the communication radio is using the RF receive chain, the RF receive chain further configured to remain open when the switch is in the first or the second state. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for call processing, comprising:
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establishing a call at a local device; opening a communication channel from the local device; receiving a request for position location information; suspending a voice part of the communication channel; activating a local warning that resides on the local device while the voice part of the communication channel is suspended, the local warning including a key challenge that requires additional operator steps to interrupt the call and a textual display on a screen that presents information that the additional steps are required to interrupt the call; collecting position location data while the voice part of the communication channel is suspended; transmitting position location information using a data part of the communication channel; resuming the voice part of the communication channel; and deactivating the local warning upon resuming the voice part of the communication channel. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification