PROTECTION FOR DIRECT LINK SETUP (DLS) TRANSMISSIONS IN WIRELESS COMMUNICATIONS SYSTEMS
First Claim
Patent Images
1. A method for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
- sending a ready-to-send (RTS) frame by a first station, directed to an access point within a basic service set (BSS);
receiving a clear-to-send (CTS) frame sent from the AP, sent responsive to the RTS, wherein at least one of the RTS and CTS frames have duration fields set to accommodate expected data frame transmissions from the first station to a second station in the BSS on the DLS connection; and
exchanging, by the first station, data frames directly with the second station on the DLS connection.
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Accused Products
Abstract
Certain embodiments of the present disclosure provide techniques and apparatus for establishing direct link setup (DLS) connections between stations in a wireless local area network (WLAN). The DLS connections may be established in a manner that helps avoid collisions with transmissions from hidden stations.
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Citations
60 Claims
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1. A method for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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sending a ready-to-send (RTS) frame by a first station, directed to an access point within a basic service set (BSS); receiving a clear-to-send (CTS) frame sent from the AP, sent responsive to the RTS, wherein at least one of the RTS and CTS frames have duration fields set to accommodate expected data frame transmissions from the first station to a second station in the BSS on the DLS connection; and exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (2, 3, 4, 5)
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6. A method for protecting data link setup transmissions in a wireless communication system, comprising:
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sending a clear-to-send (CTS) to self (CTS-to-self) frame by a first station within a basic service set (BSS), the CTS-to-self having a recipient address set to a media access control (MAC) address of the first station; sending a request-to-send (RTS) frame to a second station within the BSS; and exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (7, 8)
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9. A method for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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receiving a ready-to-send (RTS) frame from a first station within a basic service set (BSS); determining if a recipient address of the RTS frame matches a stored transmit opportunity (TXOP) holder address; and if so, sending a clear-to-send (CTS) frame to the first station and receiving data frames directly from the first station on the DLC connection. - View Dependent Claims (10, 11)
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12. A method for establishing a data link setup (DLS) connection in a wireless communication system, comprising:
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setting up, by a first station, an uplink transmit specification (TSPEC) with a Hybrid Coordination Function Controlled Channel Access (HCCA) access point (AP); receiving, by the first station, a poll for data from the HCCA AP; and responding, by the first station, to the received poll with an acknowledgement (ACK). - View Dependent Claims (13, 14, 15)
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16. An apparatus for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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logic for sending a ready-to-send (RTS) frame by a first station, directed to an access point within a basic service set (BSS); logic for receiving a clear-to-send (CTS) frame sent from the AP, sent responsive to the RTS, wherein at least one of the RTS and CTS frames have duration fields set to accommodate expected data frame transmissions from the first station to a second station in the BSS on the DLS connection; and logic for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (17, 18, 19, 20)
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21. An apparatus for protecting data link setup transmissions in a wireless communication system, comprising:
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logic for sending a clear-to-send (CTS) to self (CTS-to-self) frame by a first station within a basic service set (BSS), the CTS-to-self having a recipient address set to a media access control (MAC) address of the first station; logic for sending a request-to-send (RTS) frame to a second station within the BSS; and logic for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (22, 23)
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24. An apparatus for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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logic for receiving a ready-to-send (RTS) frame from a first station within a basic service set (BSS); and logic for determining if a recipient address of the RTS frame matches a stored transmit opportunity (TXOP) holder address and, if so, sending a clear-to-send (CTS) frame to the first station and receiving data frames directly from the first station on the DLC connection. - View Dependent Claims (25, 26)
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27. An apparatus for establishing a data link setup (DLS) connection in a wireless communication system, comprising:
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logic for setting up, by a first station, an uplink transmit specification (TSPEC) with a Hybrid Coordination Function Controlled Channel Access (HCCA)access point (AP); logic for receiving, by the first station, a poll for data from the HCCA AP; and logic for responding, by the first station, to the received poll with an acknowledgement (ACK). - View Dependent Claims (28, 29, 30)
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31. An apparatus for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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means for sending a ready-to-send (RTS) frame by a first station, directed to an access point within a basic service set (BSS); means for receiving a clear-to-send (CTS) frame sent from the AP, sent responsive to the RTS, wherein at least one of the RTS and CTS frames have duration fields set to accommodate expected data frame transmissions from the first station to a second station in the BSS on the DLS connection; and means for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (32, 33, 34, 35)
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36. An apparatus for protecting data link setup transmissions in a wireless communication system, comprising:
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means for sending a clear-to-send (CTS) to self (CTS-to-self) frame by a first station within a basic service set (BSS), the CTS-to-self having a recipient address set to a media access control (MAC) address of the first station; means for sending a request-to-send (RTS) frame to a second station within the BSS; and means for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (37, 38)
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39. An apparatus for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising:
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means for receiving a ready-to-send (RTS) frame from a first station within a basic service set (BSS); and means for determining if a recipient address of the RTS frame matches a stored transmit opportunity (TXOP) holder address and, if so, sending a clear-to-send (CTS) frame to the first station and receiving data frames directly from the first station on the DLC connection. - View Dependent Claims (40, 41)
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42. An apparatus for establishing a data link setup (DLS) connection in a wireless communication system, comprising:
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means for setting up, by a first station, an uplink transmit specification (TSPEC) with a Hybrid Coordination Function Controlled Channel Access (HCCA)access point (AP); means for receiving, by the first station, a poll for data from the HCCA AP; and means for responding, by the first station, to the received poll with an acknowledgement (ACK). - View Dependent Claims (43, 44, 45)
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46. A computer-program product for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for sending a ready-to-send (RTS) frame by a first station, directed to an access point within a basic service set (BSS); instructions for receiving a clear-to-send (CTS) frame sent from the AP, sent responsive to the RTS, wherein at least one of the RTS and CTS frames have duration fields set to accommodate expected data frame transmissions from the first station to a second station in the BSS on the DLS connection; and instructions for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (47, 48, 49, 50)
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51. A computer-program product for protecting data link setup transmissions in a wireless communication system, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for sending a clear-to-send (CTS) to self (CTS-to-self) frame by a first station within a basic service set (BSS), the CTS-to-self having a recipient address set to a media access control (MAC) address of the first station; instructions for sending a request-to-send (RTS) frame to a second station within the BSS; and instructions for exchanging, by the first station, data frames directly with the second station on the DLS connection. - View Dependent Claims (52, 53)
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54. A computer-program product for establishing a direct link setup (DLS) connection between stations in a wireless local area network, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for receiving a ready-to-send (RTS) frame from a first station within a basic service set (BSS); instructions for determining if a recipient address of the RTS frame matches a stored transmit opportunity (TXOP) holder address; and if so, instructions for sending a clear-to-send (CTS) frame to the first station and receiving data frames directly from the first station on the DLC connection. - View Dependent Claims (55, 56)
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57. A computer-program product for establishing a data link setup (DLS) connection in a wireless communication system, comprising a computer readable medium having instructions stored thereon, the instructions being executable by one or more processors and the instructions comprising:
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instructions for setting up, by a first station, an uplink transmit specification (TSPEC) with a Hybrid Coordination Function Controlled Channel Access (HCCA) access point (AP); instructions for receiving, by the first station, a poll for data from the HCCA AP; and instructions for responding, by the first station, to the received poll with an acknowledgement (ACK). - View Dependent Claims (58, 59, 60)
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Specification