Echo avoidance in large volume system-wide calls
AssigneeMotorola Solutions, Inc.
InventorsMAARTEN FADDEGON, YUNHAI YANG
Life of this patent
Estimating the term…
Abstract
A method and system to avoid echo in large volume calls is provided. A Land Mobile Radio (LMR) core network receives audio packets for audio packets intended for a plurality of mobile devices. The Smart Connect Gateway determines a geographic location of each of the plurality of mobile devices. The Smart Connect Gateway transmits the audio packets to the plurality of mobile devices based upon the geographic location of each of the plurality of mobile devices.
Claims20
A method comprising:
- receiving audio packets for a group call, the audio packets intended for a plurality of mobile devices;
- determining a geographic location of each of the plurality of mobile devices;
- and
- transmitting the audio packets to the plurality of mobile devices based upon the geographic location of each of the plurality of mobile devices.
A method comprising:
- receiving audio packets for a group call, the audio packets intended for a plurality of mobile devices;
- creating a plurality of echo-free virtual groups, each of the plurality of echo-free virtual groups including one or more of the plurality of mobile devices;
- and
- transmitting the audio packets to the plurality of mobile devices based upon the plurality of echo-free virtual groups of each of the plurality of mobile devices.
A core network comprising:
- an input port for receiving audio packets for a group call, the audio packets intended for a plurality of mobile devices;
- a processor for creating a plurality of echo-free virtual groups, each of the plurality of echo-free virtual groups including one or more of the plurality of mobile devices;
- and
- an output port for transmitting the audio packets to the plurality of mobile devices based upon the plurality of echo-free virtual groups of each of the plurality of mobile devices.
The core network of clam 17, wherein the plurality of echo-free virtual groups is based at least in part upon the current talkgroup of each of the plurality of mobile devices.
The core network of clam 17, wherein the plurality of echo-free virtual groups is based at least in part upon the current multigroup of each of the plurality of mobile devices.
The core network of clam 17, wherein the plurality of echo-free virtual groups is based at least in part upon whether each of the plurality of mobile devices is wearing a headset.
Dependencies are inferred from the claim text.