Physical Layer Data Unit Format for a Wireless Communication Network
First Claim
1. A method for generating a data unit for transmission via a communication channel, the method comprising:
- determining, at a network interface of a communication device, whether the data unit is to be transmitted using single carrier (SC) modulation or using orthogonal frequency division (OFDM) modulation;
generating, at the network interface of the communication device, a header field to be included in a preamble of the data unit, includingwhen it is determined that the data unit is to be transmitted using SC modulation, generating the header field using a first technique to indicate one or both of (i) that the data unit conforms to a first communication protocol and not a second communication protocol and (ii) whether the data unit conforms to a first PHY mode of the first communication protocol or a second PHY mode of the first communication protocol, andwhen it is determined that the data unit is to be transmitted using OFDM modulation, generating the header field using a second technique to indicate one or both of (i) that the data unit conforms to the first communication protocol and not the second communication protocol and (ii) whether the data unit conforms to the first PHY mode of the first communication protocol or the second PHY mode of the first communication protocol;
generating, at the network interface of the communication device, the preamble of the data unit to include at least the header field, andgenerating, at the network interface of the communication device, the data unit to include at least the preamble.
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Accused Products
Abstract
In a method for generating a data unit, it is determined whether the data unit is to be transmitted using single carrier (SC) modulation or orthogonal frequency division (OFDM) modulation. When it is determined that the data unit is to be transmitted using SC modulation, a header field of the data unit is generated using a first technique to indicate that the data unit conforms to a first protocol and/or whether the data unit conforms to a first PHY mode or a second PHY mode of the first protocol. When it is determined that the data unit is to be transmitted using OFDM modulation, the header field is generated using a second technique to indicate that the data unit conforms to the first protocol and/or whether the data unit conforms to the first PHY mode or the second PHY mode of the first protocol.
43 Citations
20 Claims
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1. A method for generating a data unit for transmission via a communication channel, the method comprising:
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determining, at a network interface of a communication device, whether the data unit is to be transmitted using single carrier (SC) modulation or using orthogonal frequency division (OFDM) modulation; generating, at the network interface of the communication device, a header field to be included in a preamble of the data unit, including when it is determined that the data unit is to be transmitted using SC modulation, generating the header field using a first technique to indicate one or both of (i) that the data unit conforms to a first communication protocol and not a second communication protocol and (ii) whether the data unit conforms to a first PHY mode of the first communication protocol or a second PHY mode of the first communication protocol, and when it is determined that the data unit is to be transmitted using OFDM modulation, generating the header field using a second technique to indicate one or both of (i) that the data unit conforms to the first communication protocol and not the second communication protocol and (ii) whether the data unit conforms to the first PHY mode of the first communication protocol or the second PHY mode of the first communication protocol; generating, at the network interface of the communication device, the preamble of the data unit to include at least the header field, and generating, at the network interface of the communication device, the data unit to include at least the preamble. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A communication device, comprising:
a network interface having one or more integrated circuits configured to determine whether a data unit is to be transmitted using single carrier (SC) modulation or using orthogonal frequency division (OFDM) modulation; generate a header field to be included in a preamble of the data unit, wherein generating the header field includes when it is determined that the data unit is to be transmitted using SC modulation, generating the header field using a first technique to indicate one or both of (i) that the data unit conforms to a first communication protocol and not a second communication protocol and (ii) whether the data unit conforms to a first PHY mode of the first communication protocol or a second PHY mode of the first communication protocol, and when it is determined that the data unit is to be transmitted using OFDM modulation, generating the header field using a second technique to indicate one or both of (i) that the data unit conforms to the first communication protocol and not the second communication protocol and (ii) whether the data unit conforms to the first PHY mode of the first communication protocol or the second PHY mode of the first communication protocol; generate the preamble of the data unit to include at least the header field, and generate the data unit to include at least the preamble. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification