Direct link setup mechanisms for wireless LANs
First Claim
1. A client station comprising:
- a communication circuit configured tocommunicate, via an infrastructure mode, with an access point in a basic service set,identify, based on signals transmitted by the access point, a plurality of client stations in the basic service set capable of communicating via a direct link setup mode, andcommunicate, via the direct link setup mode, with the plurality of client stations; and
a control circuit configured todetermine strength of signals received from the plurality of client stations via the direct link setup mode;
determine highest supportable data rates for communicating with the plurality of client stations via the direct link setup mode;
select, based on (i) the strength of the signals received from the plurality of client stations via the direct link setup mode and (ii) the highest supportable data rates, one or more of the plurality of client stations for communicating via the direct link setup mode; and
negotiate a communication schedule with the one or more of the plurality of client stations based on a common timer synchronization function received by the one or more of the plurality of client stations from beacons transmitted by the access point,wherein the communication schedule (i) specifies a start time and a communication interval to communicate with the one or more of the plurality of client stations via the direct link setup mode, and (ii) includes a series of communication windows separated by fixed intervals.
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Accused Products
Abstract
A client station including a communication circuit to communicate, via an infrastructure mode, with an access point in a basic service set; identify, based on signals transmitted by the access point, a plurality of client stations in the basic service set capable of communicating via a direct link setup mode; and during a predetermined time period, communicate, via the direct link setup mode, with the plurality of client stations; and a control circuit to, during the predetermined time period, determine strength of signals received from the plurality of client stations via the direct link setup mode, determine highest supportable data rates for communicating with the plurality of client stations via the direct link setup mode, and select, based on (i) the strength of the signals and (ii) the highest supportable data rates, one or more of the plurality of client stations for communicating via the direct link setup mode.
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Citations
12 Claims
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1. A client station comprising:
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a communication circuit configured to communicate, via an infrastructure mode, with an access point in a basic service set, identify, based on signals transmitted by the access point, a plurality of client stations in the basic service set capable of communicating via a direct link setup mode, and communicate, via the direct link setup mode, with the plurality of client stations; and a control circuit configured to determine strength of signals received from the plurality of client stations via the direct link setup mode; determine highest supportable data rates for communicating with the plurality of client stations via the direct link setup mode; select, based on (i) the strength of the signals received from the plurality of client stations via the direct link setup mode and (ii) the highest supportable data rates, one or more of the plurality of client stations for communicating via the direct link setup mode; and negotiate a communication schedule with the one or more of the plurality of client stations based on a common timer synchronization function received by the one or more of the plurality of client stations from beacons transmitted by the access point, wherein the communication schedule (i) specifies a start time and a communication interval to communicate with the one or more of the plurality of client stations via the direct link setup mode, and (ii) includes a series of communication windows separated by fixed intervals. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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Communicating, via an infrastructure mode, with an access point in a basic service set; identifying, at a client station, based on signals transmitted by the access point, a plurality of client stations in the basic service set capable of communicating via a direct link setup mode; communicating, via the direct link setup mode, with the plurality of client stations; determining strength of signals received at the client station from the plurality of client stations via the direct link setup mode; determining highest supportable data rates for communicating with the plurality of client stations via the direct link setup mode; selecting, based on (i) the strength of the signals received from the plurality of client stations via the direct link setup mode and (ii) the highest supportable data rates, one or more of the plurality of client stations for communicating via the direct link setup mode; and negotiating a communication schedule with the one or more of the plurality of client stations based on a common timer synchronization function received by the one or more of the plurality of client stations from beacons transmitted by the access point, wherein the communication schedule (i) specifies a start time and a communication interval to communicate with the one or more of the plurality of client stations via the direct link setup mode, and (ii) includes a series of communication windows separated by fixed intervals. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification