Power management for wireless direct link
First Claim
1. A method for power management of a direct wireless link between two wireless devices, the method comprising the steps of:
- establishing a direct wireless link between the first wireless device and the second wireless device;
transmitting, from a first wireless device, a frame having a time value;
receiving, at the second wireless device, the frame from the first wireless device;
suspending the direct wireless link a duration determined based on the time value; and
resuming the direct wireless link at a time determined based on the time value.
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Accused Products
Abstract
Disclosed herein are exemplary techniques for managing power in a direct wireless link between two wireless devices. The present invention provides at least three direct link power management techniques: Fast Resumption Mode (FRM) wherein the direct link is resumed automatically at a specified timing synchronization function (TSF); Slow Resumption Mode (SRM) wherein the direct link may be resumed by sending a Resume-Request via the access point; and Reverse Polling (RP), wherein one peer station of the direct link is continually awake and the other peer station uses reverse polling to start a service period. Thus, a method for power management of a direct wireless link between two wireless devices is disclosed. The method comprising the steps of establishing a direct wireless link between the first wireless device and the second wireless device; transmitting, from a first wireless device, a frame having a time value; receiving, at the second wireless device, the frame from the first wireless device; suspending the direct wireless link a duration determined based on the time value; and resuming the direct wireless link at a time determined based on the time value.
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Citations
17 Claims
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1. A method for power management of a direct wireless link between two wireless devices, the method comprising the steps of:
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establishing a direct wireless link between the first wireless device and the second wireless device;
transmitting, from a first wireless device, a frame having a time value;
receiving, at the second wireless device, the frame from the first wireless device;
suspending the direct wireless link a duration determined based on the time value; and
resuming the direct wireless link at a time determined based on the time value. - View Dependent Claims (2, 3)
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4. A system, wherein a first wireless device is adapted to manage the power of a direct wireless link with a second wireless device, the first wireless device comprises:
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a processor adapted to establish a direct wireless link between the first wireless device and the second wireless device;
a transceiver adapted to transmit a frame having a time value, wherein the direct wireless link is suspended for a duration determined based on the time value and the direct wireless link is resumed at a time determined based on the time value. - View Dependent Claims (5, 6)
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7. A system, wherein a first wireless device is adapted to manage the power of a direct wireless link with a second wireless device, the first wireless device comprises:
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a processor adapted to establish a direct wireless link between the first wireless device and the second wireless device;
a transceiver adapted to transmit from a first wireless device, a first frame having a power management bit set;
wherein the direct wireless link is suspended based on the time value power management bit set - View Dependent Claims (8, 9, 10, 11)
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12. A method for power management of a direct wireless link between two wireless devices, the method comprising the steps of:
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establishing a direct wireless link between the first wireless device and the second wireless device;
transmitting, from a first wireless device, a first frame having a power management bit set;
receiving, at the second wireless device, the first frame from the first wireless device;
suspending the direct wireless link based on the time value power management bit set - View Dependent Claims (13, 14, 15, 16)
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17. A method for power management of a direct wireless link between two wireless devices, the method comprising the steps of:
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establishing a direct wireless link between the first wireless device and the second wireless device, wherein the first wireless device is a continuously awake node and wherein the first wireless device accepts QoS frames and wherein the second wireless device is a power save node;
transmitting buffered traffic to the first wireless device only during a plurality of service periods;
sending a QoS-Null frame to the first wireless device periodically whereby a service period is initiated periodically.
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Specification