Control data unit format for WLAN
First Claim
1. A method for generating a control data unit, wherein the control data unit is responsive to another data unit having a frame check sequence (FCS) corresponding to an error detection operation performed on data in the other data unit, the method comprising:
- generating a physical layer (PHY) preamble of the control data unit, includinggenerating an address field to indicate a communication device for which the control data unit is intended,generating a frame type field to indicate a type of the control data unit,including the address field and the frame type field in the PHY preamble,including at least a portion of the FCS from the other data unit in the PHY preamble;
generating the control data unit to include the PHY preamble; and
causing the control data unit to be transmitted, wherein the control data unit omits (i) a MAC header, and (ii) a payload.
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Accused Products
Abstract
In a method for generating a control data unit a physical layer (PHY) preamble of the control data unit is generated. In generating the PHY preamble, an address field is generated to indicate a communication device for which the data unit is intended, and a frame type field is generated to indicate a type of the control data unit. The address field and the frame type field are included in the PHY preamble. The control data unit is generated to include the PHY preamble. The control data unit is transmitted. The control data unit omits (i) a MAC header, and (iii) a payload.
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Citations
22 Claims
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1. A method for generating a control data unit, wherein the control data unit is responsive to another data unit having a frame check sequence (FCS) corresponding to an error detection operation performed on data in the other data unit, the method comprising:
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generating a physical layer (PHY) preamble of the control data unit, including generating an address field to indicate a communication device for which the control data unit is intended, generating a frame type field to indicate a type of the control data unit, including the address field and the frame type field in the PHY preamble, including at least a portion of the FCS from the other data unit in the PHY preamble; generating the control data unit to include the PHY preamble; and causing the control data unit to be transmitted, wherein the control data unit omits (i) a MAC header, and (ii) a payload. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus, comprising:
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a network interface configured to; generate a physical layer (PHY) preamble of a control data unit, wherein the control data unit is responsive to another data unit having a frame check sequence (FCS) corresponding to an error detection operation performed on data in the other data unit, at least by generating an address field to indicate a communication device for which the control data unit is intended, generating a frame type field to include indicate a type of the control data unit, including the address field and the frame type field in the PHY preamble including at least a portion of the FCS from the other data unit in the PHY preamble; generate the control data unit to include the PHY preamble; and transmit the control data unit, wherein the control data unit omits (i) a MAC header, and (ii) a payload. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification