Frequency and timing control for femtocell
AssigneeQUALCOMM Incorporated
InventorsSeung-Hyun Kong, Wenhui Xiong
Life of this patent
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Abstract
Techniques are provided for frequency and/or timing synchronization of a small base station with a network. In one example, small base station may be configured to detect a macro signal of a macro base station, and set a frequency reference based at least in part on the macro signal, in response to the macro signal being available in a different band than that for the small base station. The small base station may be configured to set the frequency reference based at least in part on a Global Positioning System (GPS) signal, in response to detecting that the different band macro signal is not available.
Claims62
A method for synchronization with a network by a small base station, comprising:
- detecting a macro signal of a macro base station;
- and
- setting a frequency reference based at least in part on the macro signal, in response to the macro signal being available in a different band than that for the small base station.
A method for synchronization with a network, comprising:
- determining a signal strength of a Global Positioning System (GPS) signal;
- and
- setting the frequency reference based at least in part on the GPS signal, in response to the GPS signal strength meeting a defined minimum strength.
An apparatus operable in a wireless communication system, the apparatus synchronizing with a network and comprising:
- means for detecting a macro signal of a macro base station;
- and
- means for setting a frequency reference based at least in part on the macro signal, in response to the macro signal being available in a different band than that for the small base station.
An apparatus operable in a wireless communication system, the apparatus synchronizing with a network and comprising:
- means for determining a signal strength of a Global Positioning System (GPS) signal;
- and
- means for setting the frequency reference based at least in part on the GPS signal, in response to the GPS signal strength meeting a defined minimum strength.
A computer program product, comprising:
- a computer-readable medium comprising code for causing a computer to:
- detect a macro signal of a macro base station;
- and
- set a frequency reference based at least in part on the macro signal, in response to the macro signal being available in a different band than that for the small base station.
A computer program product, comprising:
- a computer-readable medium comprising code for causing a computer to:
- determine a signal strength of a Global Positioning System (GPS) signal;
- and
- set the frequency reference based at least in part on the GPS signal, in response to the GPS signal strength meeting a defined minimum strength.
An apparatus operable in a wireless communication system, the apparatus synchronizing with a network and comprising:
- at least one processor configured to:
- detect a macro signal of a macro base station;
- and set a frequency reference based at least in part on the macro signal, in response to the macro signal being available in a different band than that for the small base station;
- and
- a memory coupled to the at least one processor for storing data.
An apparatus operable in a wireless communication system, the apparatus synchronizing with a network and comprising:
- at least one processor configured to:
- determine a signal strength of a Global Positioning System (GPS) signal;
- and set the frequency reference based at least in part on the GPS signal, in response to the GPS signal strength meeting a defined minimum strength;
- and
- a memory coupled to the at least one processor for storing data.
Dependencies are inferred from the claim text.