Switching a call from a network assisted communication mode to a direct communication mode
AssigneeMotorola, Inc.
InventorsJose Korneluk, Sherry Dubin, Swetal Patel, Anthony Rodrigues, James Walsh
Life of this patent
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Abstract
A mobile communication device (214) in a communication system (200) initiates a call over the fixed equipment network of the communication system to another mobile communication device (216). If the two mobile communication devices are within sufficient proximity to each other, they may switch to a direct mode of communication. (318). The direct mode and network mode of communication are in different frequency bands using different air interface protocols.
Claims18
A method for changing a call from a network facilitated calling mode to a direct calling mode, comprising:
- establishing a call between a first mobile communication device and a second mobile communication device via a communications network, the first and second mobile communication devices communicating with the communications network using a first wireless communications protocol in a first communications frequency band;
- determining that the first and second mobile communication devices are within sufficient radio proximity to allow the direct calling mode to commence;
- and
- commencing the call using the direct communication mode where the first and second mobile communication devices communicate directly with each other using a second wireless communications protocol in a second communications frequency band.
A method for initiating a direct communication mode between a first mobile communication device and a second mobile communication device in a wireless communication system, comprising:
- registering the first and second mobile communication devices for communication service with the wireless communication system;
- initiating a network-assisted call from the first mobile communication device to the second mobile communication device via the wireless communication system;
- determining that the first and second mobile communication devices are within sufficient radio proximity to support a direct communication mode;
- switching to a direct communication mode at both the first and second mobile communication devices;
- and
- continuing communications between the first and second mobile communication devices using the direct communication mode.
A mobile communication device comprising:
- a transceiver for supporting a network assisted call in a first frequency band according to a first wireless communication protocol and a direct communication mode for communicating directly with another mobile communication device in a second frequency band according to a second wireless communication protocol;
- a controller operably coupled to the transceiver for controlling operation of the transceiver;
- and
- a memory for storing instruction code executable by the controller, including operation of the first and second communication protocols.
Dependencies are inferred from the claim text.