Device beacon for communication management for peer to peer communications
First Claim
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1. A mobile wireless communication device comprising:
- a wireless wide area network (WWAN) downlink receiver configured to receive, from a WWAN base station, a WWAN sync channel signal and a WWAN broadcast control signal comprising a device beacon signal transmission time parameter;
a controller configured to derive a WWAN system timing from the WWAN sync channel signal; and
a WWAN uplink transmitter configured to apply the WWAN system timing and the device beacon signal transmission time parameter to transmit a device beacon signal to another mobile wireless communication device,during a beacon transmission time period coinciding with a subcarrier timing of the WWAN, andat a frequency outside a WWAN uplink frequency-time space, wherein the device beacon signal invokes peer to peer communication between the mobile wireless communication device and the another mobile wireless communication device.
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Abstract
A wireless communication device transmits a device beacon in accordance with a system timing of a wireless wide area network (WWAN). For one example, the beacon is transmitted relative to WWAN uplink channels of the time-frequency space of the uplink WWAN channel assignment. In response to the reception of the device beacon by another wireless communication device, a peer to peer communication session is established.
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Citations
18 Claims
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1. A mobile wireless communication device comprising:
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a wireless wide area network (WWAN) downlink receiver configured to receive, from a WWAN base station, a WWAN sync channel signal and a WWAN broadcast control signal comprising a device beacon signal transmission time parameter; a controller configured to derive a WWAN system timing from the WWAN sync channel signal; and a WWAN uplink transmitter configured to apply the WWAN system timing and the device beacon signal transmission time parameter to transmit a device beacon signal to another mobile wireless communication device, during a beacon transmission time period coinciding with a subcarrier timing of the WWAN, and at a frequency outside a WWAN uplink frequency-time space, wherein the device beacon signal invokes peer to peer communication between the mobile wireless communication device and the another mobile wireless communication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communication system comprising:
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a wireless wide area network (WWAN) base station configured to transmit WWAN downlink signals in accordance with a WWAN system timing, the WWAN downlink signals comprising a WWAN sync channel signal and a WWAN broadcast control signal comprising beacon transmission time parameters; a first mobile wireless communication device comprising; a WWAN downlink receiver configured to receive the WWAN sync channel signal and the WWAN broadcast control signal from the WWAN base station; a controller configured to derive the WWAN system timing from the WWAN sync channel signal; and a WWAN uplink transmitter configured to apply the WWAN system timing to transmit a beacon signal during a beacon transmission time period coinciding with a subcarrier timing of the WWAN and at a frequency outside a WWAN uplink frequency-time space, the beacon transmission time period at least partially identified by the beacon transmission time parameters; and a second mobile wireless communication device comprising; another WWAN downlink receiver configured to receive the WWAN sync channel signal and the WWAN broadcast control signal from the WWAN base station; a controller configured to derive the WWAN system timing from the WWAN sync channel signal; and a WWAN uplink receiver configured to receive the beacon signal using the WWAN system timing and the beacon transmission time parameters, the second mobile wireless device configured to initiate peer to peer communication with the first mobile wireless communication device in response to receiving the beacon signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification