Long range WLAN data unit format
First Claim
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1. A method for generating a data unit for transmission in a wireless network, the method comprising:
- generating a physical layer (PHY) preamble, including;
generating a field to indicate whether an acknowledgment data unit is intended to follow the data unit,including the field in the PHY preamble;
generating a media access control layer (MAC) header;
generating the data unit to include the PHY preamble and the MAC header; and
causing the data unit to be transmitted.
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Abstract
In a method for generating a data unit for transmission in a wireless network, a physical layer (PHY) preamble is generated. A field to indicate whether an acknowledgment data unit is intended to follow the data unit is generated and included in the PHY preamble. A media access control layer (MAC) header is generated, and the data unit is generated to include the PHY preamble and the MAC header. The data unit is transmitted.
46 Citations
18 Claims
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1. A method for generating a data unit for transmission in a wireless network, the method comprising:
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generating a physical layer (PHY) preamble, including; generating a field to indicate whether an acknowledgment data unit is intended to follow the data unit, including the field in the PHY preamble; generating a media access control layer (MAC) header; generating the data unit to include the PHY preamble and the MAC header; and causing the data unit to be transmitted. - View Dependent Claims (2, 3, 4)
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5. An apparatus, comprising:
a network interface configured to generate a physical layer (PHY) preamble at least by generating a field to indicate whether an acknowledgment data unit is intended to follow the data unit, and including the field in the PHY preamble; generate a media access control layer (MAC) header; generate the data unit to include the PHY preamble and the MAC header; and transmit the data unit. - View Dependent Claims (6, 7, 8)
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9. A method for sharing access to a communication medium in a wireless network, the method comprising:
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receiving, at a first communication device, a data unit transmitted by a second communication device; processing, at the first communication device, a field in a physical layer (PHY) preamble of the data unit to determine whether an acknowledgement data unit is intended to follow the data unit, wherein the field in the PHY preamble indicates whether an acknowledgement data unit is intended to follow the data unit, and wherein the acknowledgment data unit is to be transmitted by a third communication device; determining, at the first communication device, a time period during which the first communication device is to refrain from transmitting, wherein the time period corresponds to (i) a time to transmit the data unit and, (ii) when it is determined that an acknowledgement data unit is intended to follow the data unit, a time to transmit the acknowledgment data unit; and refraining, at the first communication device, from transmitting during the determined time period. - View Dependent Claims (10, 11, 12, 13)
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14. A first communication device, comprising:
a network interface configured to; receive a data unit transmitted by a second communication device; process a field in a physical layer (PHY) preamble of the data unit to determine whether an acknowledgement data unit is intended to follow the data unit, wherein the field in the PHY preamble indicates whether an acknowledgement data unit is intended to follow the data unit, and wherein the acknowledgment data unit is to be transmitted by a third communication device; determine a time period during which the first device is to refrain from transmitting, wherein the time period corresponds to (i) a time to transmit the data unit and, (ii) when it is determined that an acknowledgement data unit is intended to follow the data unit, a time to transmit the acknowledgment data unit; and refrain from transmitting during the determined time period. - View Dependent Claims (15, 16, 17, 18)
Specification