Method and apparatus for controlling power consumption of stations on a CSMA/CA-based wireless LAN
First Claim
1. A method of controlling power consumption of a station when it receives a wireless signal using a hierarchical structure having a first layer and a second layer, the method comprising:
- extracting information on frame transmission speed and transmission period information on the first and second layers from the wireless signal;
determining a power-controlled period for each of the first and second layers based on the extracted information; and
reducing the power consumption of the first and second layers by switching an original mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
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Accused Products
Abstract
A method and apparatus controls power consumption of stations having a hierarchical structure when the stations transmit and receive a wireless signal to and from one another on a CSMA/CA wireless LAN. The controlling involves extracting information on frame transmission speed and transmission period information on first and second layers of the hierarchical structure from the wireless signal; determining a power-controlled period for each of the first and second layers based on the extracted information; and reducing the power consumption of the first and second layers by switching a current mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
26 Citations
11 Claims
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1. A method of controlling power consumption of a station when it receives a wireless signal using a hierarchical structure having a first layer and a second layer, the method comprising:
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extracting information on frame transmission speed and transmission period information on the first and second layers from the wireless signal;
determining a power-controlled period for each of the first and second layers based on the extracted information; and
reducing the power consumption of the first and second layers by switching an original mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for controlling power consumption of a station when it receives a wireless signal using a hierarchical structure, the apparatus comprising:
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a first layer of the hierarchical structure, the first layer for converting the wireless signal into a baseband signal;
a second layer of the hierarchical structure, the second layer for restoring an original signal from the baseband signal; and
a received power controller, which reduces the power consumed by the first and second layers by switching an original mode of the first and second layers to a predetermined mode when a reception address included in the restored original signal is not identical to an address of the station. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification