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US 9,288,773 B2Granted
Methods and apparatus for controlling interference from peer discovery in WWAN
AssigneeQUALCOMM Incorporated
InventorsXinzhou Wu, Anand Muralidhar, Hua Wang, Junyi Li, Thomas J. Richardson, Shailesh Patil
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Abstract
A method, an apparatus, and a computer program product are provided in which at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle is adjusted based on at least one of a path loss to a serving base station or a path loss to at least one neighboring base station. In addition, a peer-to-peer signal is sent with the peer-to-peer transmit power or the peer-to-peer duty cycle.
Claims25
A method of wireless communication, comprising:
- determining a path loss ratio based on a path loss to a serving base station from a mobile device and a path loss to at least one neighboring base station from the mobile device;
- determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjusting the at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station, wherein the adjusting includes adjusting the peer-to-peer duty cycle;
- and
- sending a peer discovery signal with at least one of the adjusted peer-to-peer transmit power or the adjusted peer-to-peer duty cycle, wherein the peer discovery signal includes the adjusted peer-to-peer duty cycle and wherein the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
2 more elements
A method of wireless communication, comprising:
- determining a path loss ratio based on a path loss to a serving base station and a path loss to at least one neighboring base station, wherein the path loss ratio is a sum of the path loss to the serving base station divided by the path loss to each of the at least one neighboring base station;
- determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjusting at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station;
- and
- sending a peer-to-peer signal with the adjusted peer-to-peer transmit power or the peer-to-peer duty cycle,
- wherein the peer-to-peer signal is a peer discovery signal and the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
3 more elements
An apparatus for wireless communication, comprising:
- means for determining a path loss ratio based on a path loss to a serving base station from a mobile device and a path loss to at least one neighboring base station from the mobile device;
- means for determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- means for adjusting the at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station, wherein the means for adjusting is configured to adjust the peer-to-peer duty cycle;
- and
- means for sending a peer discovery signal with at least one of the adjusted peer-to-peer transmit power or the adjusted peer-to-peer duty cycle, wherein the peer discovery signal includes the adjusted peer-to-peer duty cycle and wherein the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
2 more elements
An apparatus for wireless communication, comprising:
- means for determining a path loss ratio based on a path loss to a serving base station and a path loss to at least one neighboring base station, wherein the path loss ratio is a sum of the path loss to the serving base station divided by the path loss to each of the at least one neighboring base station;
- means for determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- means for adjusting at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station;
- and
- means for sending a peer-to-peer signal with the adjusted peer-to-peer transmit power or the peer-to-peer duty cycle,
- wherein the peer-to-peer signal is a peer discovery signal and the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
3 more elements
A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
- determining a path loss ratio based on a path loss to a serving base station from a mobile device and a path loss to at least one neighboring base station from the mobile device;
- determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjusting the at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station, wherein the code for adjusting comprises code for adjusting the peer-to-peer duty cycle;
- and
- sending a peer discovery signal with at least one of the adjusted peer-to-peer transmit power or the adjusted peer-to-peer duty cycle, wherein the peer discovery signal includes the adjusted peer-to-peer duty cycle and wherein the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
2 more elements
A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
- determining a path loss ratio based on a path loss to a serving base station and a path loss to at least one neighboring base station, wherein the path loss ratio is a sum of the path loss to the serving base station divided by the path loss to each of the at least one neighboring base station;
- determining at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjusting at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station;
- and
- sending a peer-to-peer signal with the adjusted peer-to-peer transmit power or the peer-to-peer duty cycle,
- wherein the peer-to-peer signal is a peer discovery signal and the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
3 more elements
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- determine a path loss ratio based on a path loss to a serving base station from a mobile device and a path loss to at least one neighboring base station from the mobile device;
- determine at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjust the at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station, wherein the processing system is configured to adjust the peer-to-peer duty cycle;
- and
- send a peer discovery signal with at least one of the adjusted peer-to-peer transmit power or the adjusted peer-to-peer duty cycle, wherein the peer discovery signal includes the adjusted peer-to-peer duty cycle and wherein the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
5 more elements
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- determine a path loss ratio based on a path loss to a serving base station and a path loss to at least one neighboring base station, wherein the path loss ratio is a sum of the path loss to the serving base station divided by the path loss to each of the at least one neighboring base station;
- determine at least one of a peer-to-peer transmit power or a peer-to-peer duty cycle to which to adjust based on the path loss ratio;
- adjust at least one of the peer-to-peer transmit power or the peer-to-peer duty cycle based on at least one of the path loss to the serving base station or the path loss to the at least one neighboring base station;
- and
- send a peer-to-peer signal with the adjusted peer-to-peer transmit power or the peer-to-peer duty cycle,
- wherein the peer-to-peer signal is a peer discovery signal and the peer-to-peer transmit power is a peer discovery transmit power for transmitting the peer discovery signal.
6 more elements
Dependencies are inferred from the claim text.