APPARATUS AND METHOD OF POWER SAVING FOR STATIONS IN WIRELESS COMMUNICATION SYSTEM
First Claim
1. A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system, comprising:
- a user interface unit configured to include a voice CODEC using in the VoIP service;
a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call; and
a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller.
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Accused Products
Abstract
A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system includes a user interface unit configured to include a voice CODEC using in the VoIP service, a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call, and a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller.
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Citations
14 Claims
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1. A power control apparatus of a wireless communication terminal providing a voice over internet protocol (VoIP) service in a wireless communication system, comprising:
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a user interface unit configured to include a voice CODEC using in the VoIP service; a controller configured to be connected to the user interface unit, include predetermined application programs including a VoIP application program, and control signaling for setting up a VoIP call and canceling a VoIP call; and a medium access control (MAC) processor configured to perform a medium access control function and include a timer unit for beginning a unscheduled-service period (U-SP) by receiving a VoIP call setup signal and a VoIP call cancel signal from the controller. - View Dependent Claims (2, 3)
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4. A method for controlling power of a wireless communication terminal supporting a voice over internet protocol (VoIP) service using an unscheduled automatic power saving delivery (U-APSD) method after setting up four access categories as a delivery-enabled state in a wireless communication system, comprising:
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initializing a timer when a VoIP call is setup for starting the VoIP service; determining whether the VoIP call is terminated or not when a frame of an access category setup as a trigger-enabled state is not transmitted to an access point; transmitting a trigger frame to the access point when it is determined that the VoIP call is not terminated and when a current timer value exceeds a predetermined timer maximum value; and receiving buffered data from the access point that receives the trigger frame. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification