Direct link set-up power save delivery
First Claim
1. A method that facilitates power save direct data transfers in a wireless communication system, comprising:
- transitioning to an active mode from a power save mode at a scheduled time after a target beacon transmission time;
performing at least one of a transmission of one or more data frames to a direct link peer or a reception of one or more data frames from a direct link peer;
transmitting an end of service period indication upon completion of a data transmission;
receiving an end of service period indication; and
reentering the power save mode.
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Accused Products
Abstract
Systems and methodologies are described that enable power save mechanisms to be utilized with active direct transfers. Mobile stations in a wireless communication network can establish direct links between each other to obviate a need to transfer data via an access point. While direct links are active, the mobile stations coordinate or otherwise notify each other about power management modes to effectuate power save delivery of data via direct links. In accordance with a scheduled mechanism, mobile stations coupled via a direct link enter an active mode at a previously negotiated scheduled time after which time data transfer can occur. According to an unscheduled mechanism, one mobile station can remain awake while other enters a power save mode. The sleeping station can awaken and transmit a trigger frame to notify its peer that it is available for data transfers.
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Citations
24 Claims
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1. A method that facilitates power save direct data transfers in a wireless communication system, comprising:
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transitioning to an active mode from a power save mode at a scheduled time after a target beacon transmission time; performing at least one of a transmission of one or more data frames to a direct link peer or a reception of one or more data frames from a direct link peer; transmitting an end of service period indication upon completion of a data transmission; receiving an end of service period indication; and reentering the power save mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless communications apparatus that facilitates scheduling direct transfers to enable power save, comprising:
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means for transitioning to an active mode from a power save mode at a scheduled time after a target beacon transmission time; means for performing at least one of a transmission of one or more data frames to a direct link peer or a reception of one or more data frames from a direct link peer; means for transmitting an end of service period indication upon completion of a data transmission; means for receiving an end of service period indication; and means for reentering the power save mode. - View Dependent Claims (11)
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12. In a wireless communication system, an apparatus comprising:
at least one processor configured to; switch a power management mode to an active mode from a power save mode; transmit a trigger frame to at least one direct link peer; obtain one or more data frames from the at least one direct link peer; receive an end of service period indication from the direct link peer; return the power management mode to the power save mode in response to receiving the end of service period indication; and receive a beacon after receiving the end of service period indication. - View Dependent Claims (13, 14)
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15. A method that facilitates power save operations, comprising:
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receiving, at a station, a trigger frame from a direct link peer transitioning from a power save mode; transmitting, by the station, an acknowledgment indication in response to receiving the trigger frame; transmitting, by the station, one or more data frames to the direct link peer; and conveying, by the station, an end of service period indicator to the direct link peer upon at least one of an expiration of a maximum service period or a complete transmission of buffered data frames. - View Dependent Claims (16, 17, 18)
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19. A wireless communications apparatus, comprising:
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a memory that retains instructions related to; receiving a trigger frame from a direct link peer transitioning from a power save mode; transmitting an acknowledgment indication in response to receiving the trigger frame; transmitting one or more data frames to the direct link peer; and conveying an end of service period indicator to the direct link peer upon at least one of an expiration of a maximum service period or a complete transmission of buffered data frames; and a processor, coupled to the memory, configured to execute the instructions retained in the memory. - View Dependent Claims (20, 21, 22)
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23. A wireless communications apparatus that facilitates maintaining active direct transfers during power save, comprising:
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means for receiving a trigger frame from a direct link peer transitioning from a power save mode; means for transmitting an acknowledgment indication in response to receiving the trigger frame; means for transmitting one or more data frames to the direct link peer; and means for conveying an end of service period indicator to the direct link peer upon at least one of an expiration of a maximum service period or a complete transmission of buffered data frames.
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24. In a wireless communication system, an apparatus comprising:
at least one processor configured to; receive a trigger frame from a direct link peer transitioning from a power save mode; transmit an acknowledgment indication in response to receiving the trigger frame; transmit one or more data frames to the direct link peer; and convey an end of service period indicator to the direct link peer upon at least one of an expiration of a maximum service period or a complete transmission of buffered data frames.
Specification