SIGNALING-TRIGGERED POWER ADJUSTMENT IN A FEMTO CELL
First Claim
1. A system that provides signaling-triggered transmission power management in a femto cell access point, the system comprising:
- a communication platform that receives and measures an attachment signaling activity;
a signaling metric constructor that evaluates a signaling activity metric based at least in part on the measured attachment signaling activity and received network attachment signaling; and
a power management component that adjusts transmission power of the femto cell access point when the signaling activity metric is above a threshold.
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Accused Products
Abstract
System(s) and method(s) are provided for signaling-triggered power adjustment in a femto cell. Attachment signal activity is measured and a set of derived signaling activity metrics are assessed and compared with a set of thresholds. An activity metric that overcomes an associated threshold results in a power adjustment of the transmission power of a femto access point (AP). By monitoring LAU (location area update), RAU (routing area update), and call activity, signaling activity metrics (e.g., signaling failure rate, access control rejection rate, or dwell time) are determined and a femto AP can optimize transmission power to ensure coverage maintenance and confinement, as well as mitigate unnecessary signaling. Alarm(s) can be conveyed to a femto network platform when power increases after an adjustment cycle; alarm(s) can prompt a network-based response to actively address femto cell operation. Signaling-triggered power management affects operation of AP serving the femto cell and served mobile terminals.
156 Citations
20 Claims
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1. A system that provides signaling-triggered transmission power management in a femto cell access point, the system comprising:
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a communication platform that receives and measures an attachment signaling activity; a signaling metric constructor that evaluates a signaling activity metric based at least in part on the measured attachment signaling activity and received network attachment signaling; and a power management component that adjusts transmission power of the femto cell access point when the signaling activity metric is above a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for facilitating signaling-triggered transmission power management in a femto cell, the method comprising:
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measuring an attachment signaling activity in a femto cell access point; determining a set of signaling activity metrics based at least in part on the measured attachment signaling activity; and adjusting a transmission power of the femto cell access point when the signaling activity metric is above a threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer-readable storage medium having instructions stored thereon that, when executed by a processor in a computer, cause the computer to perform the following acts:
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measuring an attachment signaling activity in a femto cell access point; determining a signaling activity metric; and adjusting a transmission power for the femto cell access point when the signaling activity metric is above a threshold.
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Specification