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US 8,284,708 B2Granted
Power save enhancements for wireless communication devices
AssigneeNokia Corporation
InventorsJarkko Kneckt, Janne Marin, Mika Kasslin, Jakub Majkowski
Life of this patent
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Abstract
Method, apparatus, and computer program product embodiments are disclosed to enable power save modes of operation between wireless devices for direct data transfer in an infrastructure basic service set. The embodiments are an enhancement to the peer U-APSD power save mechanism. The embodiments provide additional operation for peer U-APSD mechanism with two stations operating in power save mode.
Claims33
A method, comprising:
- transmitting, by an apparatus, an indication for a required direct link service period to a wireless device;
- the transmitted indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- receiving from the wireless device, a trigger signal based on the indication, the trigger signal indicating that the next direct link service period can be started, so that data exchange via the direct link can be initiated.
1 more element
An apparatus, comprising:
- a transceiver;
- and
- a processor configured to control the operation of the transceiver to:
- transmit an indication for a required direct link service period to a wireless device;
- the transmitted indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- receive from the wireless device, a trigger signal based on the transmitted indication, the trigger signal indicating that the next direct link service period can be started, so that data exchange via the direct link can be initiated.
4 more elements
A computer program product, comprising:
- a non-transitory computer readable medium configured to store program instructions, which when executed by an computer processor, perform the steps of:
- transmitting, by an apparatus, an indication for a required direct link service period to a wireless device;
- the transmitted indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- receiving from the wireless device, a trigger signal based on the transmitted indication, the trigger signal indicating that the next direct link service period can be started, so that data exchange via the direct link can be initiated.
2 more elements
An apparatus, comprising:
- means for transmitting an indication for a required direct link service period to a wireless device;
- the transmitted indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- means for receiving from the wireless device, a trigger signal based on the transmitted indication, the trigger signal indicating that the next service period can be started, so that data exchange via the direct link can be initiated.
1 more element
An apparatus, comprising:
- a transceiver;
- and
- a processor configured to control the operation of the transceiver to:
- receive an indication for a required direct link service period from a wireless device;
- the indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame in the direct link;
- and
- send to the wireless device, a trigger signal based on the indication, the trigger signal indicating that the next direct link service period can be started, so that the wireless device can initiate data exchange via the direct link.
4 more elements
An apparatus, comprising:
- means for receiving an indication for a required direct link service period from a wireless device;
- the indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame in the direct link;
- and
- means for sending to the wireless device, a trigger signal based on the indication, the trigger signal indicating that the next direct link service period can be started, so that the wireless device can initiate data exchange via the direct link.
1 more element
A method, comprising:
- receiving in an apparatus an indication for a required direct link service period from a wireless device;
- the indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- sending to the wireless device, a trigger signal based on the indication, the trigger signal indicating that the next direct link service period can be started, so that the wireless device can initiate data exchange via the direct link.
1 more element
A computer program product, comprising:
- a non-transitory computer readable medium configured to store program code executable by a computer processor;
- program code in the computer readable medium for receiving in an apparatus an indication for a required direct link service period from a wireless device;
- the indication including at least one of access category information of at least one buffered frame and reference to a last transmitted frame via the direct link;
- and
- program code in the computer readable medium for sending to the wireless device, a trigger signal based on the indication, the trigger signal indicating that the next service period can be started, so that the wireless device can initiate data exchange via the direct link.
2 more elements
Dependencies are inferred from the claim text.