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US 7,352,696 B2Granted
Method and apparatus to select an adaptation technique in a wireless network
AssigneeIntel Corporation
InventorsAdrian P. Stephens, Duncan Kitchin, Eric A. Jacobsen, Keith Holt
Life of this patent
Estimating the term…
Abstract
An adaptation technique is selected for use in a wireless network based on estimated throughput. In at least one embodiment, throughput is estimated for a wireless channel for both prefix adaptation and postfix adaptation. An adaptation technique is then selected based on the estimates. In some embodiments, an adaptation validity duration is determined to gauge the potential effectiveness of adaptation information associated with a wireless channel.
Claims27
A method for transmitting data in a wireless channel comprising:
- estimating throughput for a subsequent frame exchange using prefix adaptation, wherein prefix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity before transmission of one or more data frames to the remote entity, said adaptation information including information on how to adapt a data transmit parameter;
- estimating throughput for the subsequent frame exchange using postfix adaptation, wherein postfix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity after transmission of one or more data frames to the remote entity;
- selecting an adaptation technique from a group including prefix adaptation and postfix adaptation for use in the subsequent frame exchange based on said estimated throughput using prefix adaptation and said estimated throughput using postfix adaptation;
- and
- performing the subsequent frame exchange using the selected adaptation technique.
2 more elements
A method for use in a wireless network, comprising:
- determining an adaptation validity duration as an estimate of the useful life of adaptation information;
- when data is to be transferred, determining a time T since adaptation information was last obtained;
- and
- when time T is greater than the adaptation validity duration, selecting prefix adaptation for a subsequent frame exchange.
1 more element
A method for use in a wireless network, comprising:
- determining a time T since adaptation information was last obtained;
- determining a postfix data transmission rate to be used when transmitting data using postfix adaptation, based on time T;
- estimating throughput for a subsequent frame exchange using prefix adaptation;
- estimating throughput for the subsequent frame exchange using postfix adaptation and the postfix data transmission rate;
- and
- selecting an adaptation technique to be used for the subsequent frame exchange based on said estimated throughput using prefix adaptation and said estimated throughput using postfix adaptation.
3 more elements
An article comprising a computer readable storage medium having instructions stored thereon that, when executed by a computing platform, result in:
- estimating throughput for a subsequent frame exchange in a wireless channel using prefix adaptation, wherein prefix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity before transmission of one or more data frames to the remote entity, said adaptation information including information on how to adapt a data transmit parameter;
- estimating throughput for the subsequent frame exchange in the wireless channel using postfix adaptation, wherein postfix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity after transmission of one or more data frames to the remote entity;
- selecting an adaptation technique from a group including prefix adaptation and postfix adaptation for use in the subsequent frame exchange based on said estimated throughput using prefix adaptation and said estimated throughput using postfix adaptation;
- and
- performing said frame exchange in the wireless channel using the selected adaptation technique.
2 more elements
An apparatus comprising:
- a wireless transceiver to transmit and receive wireless signals;
- a throughput estimator to estimate the throughput of a subsequent frame exchange using prefix adaptation and the throughput of the subsequent frame exchange using postfix adaptation, wherein prefix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity before transmission of one or more data frames to the remote entity and postfix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity after transmission of one or more data frames to the remote entity, said adaptation information being information on how to adapt a data transmit parameter;
- and
- a selector to select an adaptation technique from a group including prefix adaptation and postfix adaptation for use in the subsequent frame exchange based on said estimated throughput using prefix adaptation and said estimated throughput using postfix adaptation.
1 more element
A system comprising:
- at least two antennas;
- a wireless transceiver, coupled to said at least two antennas, to transmit and receive wireless signals;
- a throughput estimator to estimate the throughput of a subsequent frame exchange using prefix adaptation and to estimate the throughput of the subsequent frame exchange using postfix adaptation, wherein prefix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity before transmission of one or more data frames to the remote entity and postfix adaptation is a technique where, during a frame exchange with a remote entity, adaptation information is received from the remote entity after transmission of one or more data frames to the remote entity, said adaptation information being information on how to adapt a data transmit parameter;
- and
- a selector to select an adaptation technique from a group including prefix adaptation and postfix adaptation for use in the subsequent frame exchange based on said estimated throughput using prefix adaptation and said estimated throughput using postfix adaptation.
2 more elements
Dependencies are inferred from the claim text.