Systems and methods for wireless communication of packets having a plurality of formats
First Claim
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1. An apparatus for wireless communication, comprising:
- a receiver configured to receive a wireless communication comprising a physical layer preamble and a payload, the preamble including a first field indicating whether the preamble includes an extension field, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, wherein the first field further includes a sub-field including a length indicator of the wireless communication; and
a processor configured to;
process the payload based on modulation coding parameters included in the first field when the rotation of the modulation of the signal field indicates that the preamble does not include the extension field;
process the payload based on coding parameters included in the extension field when the rotation of the modulation of the signal field indicates that the preamble includes the extension field;
interpret the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the wireless communication is for a single user non-aggregated media access control protocol data unit; and
interpret the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit.
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Abstract
Systems and methods for communicating packets having a plurality of formats are described herein. In some aspects, a signal (SIG) field in the preamble of a packet may indicate whether an extension field, such as an extension SIG field or SIG-B field, is included in the packet. In another aspect, one or more detectors may be used to auto-detect packets formatted as one of at least two different formats based on a short training field (STF) of a received packet. In some aspects, along training field (LTF) in the preamble of a packet may indicate whether the payload is repetition coded.
58 Citations
40 Claims
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1. An apparatus for wireless communication, comprising:
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a receiver configured to receive a wireless communication comprising a physical layer preamble and a payload, the preamble including a first field indicating whether the preamble includes an extension field, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, wherein the first field further includes a sub-field including a length indicator of the wireless communication; and a processor configured to; process the payload based on modulation coding parameters included in the first field when the rotation of the modulation of the signal field indicates that the preamble does not include the extension field; process the payload based on coding parameters included in the extension field when the rotation of the modulation of the signal field indicates that the preamble includes the extension field; interpret the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the wireless communication is for a single user non-aggregated media access control protocol data unit; and interpret the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of wireless communication, comprising:
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receiving a wireless communication comprising a physical layer preamble and a payload, the preamble including a first field indicating whether the preamble includes an extension field, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, wherein the first field further includes a sub-field including a length indicator of the wireless communication; processing the payload based on modulation coding parameters included in the first field when the rotation of the modulation of the signal field indicates that the preamble does not include the extension field; processing the payload based on coding parameters included in the extension field when the rotation of the modulation of the signal field indicates that the preamble includes the extension field; interpreting the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the wireless communication is for a single user non-aggregated media access control protocol data unit; and interpreting the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for wireless communication, comprising:
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means for receiving a wireless communication comprising a physical layer preamble and a payload, the preamble including a first field indicating whether the preamble includes an extension field, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, wherein the first field further includes a sub-field including a length indicator of the wireless communication; means for processing the payload based on modulation coding parameters included in the first field when the rotation of the modulation of the signal field indicates that the preamble does not include the extension field; means for processing the payload based on coding parameters included in the extension field when the rotation of the modulation of the signal field indicates that the preamble includes the extension field; means for interpreting the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the wireless communication is for a single user non-aggregated media access control protocol data unit; and means for interpreting the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit.
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20. A non-transitory computer readable medium comprising instructions that when executed cause an apparatus to:
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receive a wireless communication comprising a physical layer preamble and a payload, the preamble including a first field indicating whether the preamble includes an extension field, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator the extension field is included in the communication wherein the first field further includes a sub-field including a length indicator of the wireless communication; process the payload based on modulation coding parameters included in the first field when the rotation of the modulation of the signal field indicates that the preamble does not include the extension field; process the payload based on coding parameters included in the extension field when the rotation of the modulation of the signal field indicates that the preamble includes the extension field; interpret the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the wireless communication is for a single user non-aggregated media access control protocol data unit; and interpret the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit.
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21. An apparatus for wireless communication, comprising:
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a processor configured to; generate a communication comprising a physical layer preamble and a payload and to determine whether to include an extension field in the preamble, wherein the preamble includes a first field indicating whether the extension field is included, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, the first field further including a sub-field including a length indicator of the wireless communication; include modulation coding parameters for the payload in the first field when the rotation of the modulation of the signal field indicates that the extension field is not included in the communication; include coding parameters for the payload in the extension field when the rotation of the modulation of the signal field indicates that the extension field is included in the communication; process the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the communication is for a single user non-aggregated media access control protocol data unit; and process the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit; and a transmitter configured to wirelessly transmit the generated communication. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of wireless communication, comprising:
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determining whether to include an extension field in a physical layer preamble of a communication; generating the communication, wherein the communication comprises the preamble and a payload, the preamble including a first field indicating whether the extension field is included, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, the first field further including a sub-field including a length indicator of the wireless communication, the generating comprising; including modulation coding parameters for the payload in the first field when the rotation of the modulation of the signal field indicates that the extension field is not included in the communication; including coding parameters for the payload in the extension field when the rotation of the modulation of the signal field indicates that the extension field is included in the communication; processing the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the communication is for a single user non-aggregated media access control protocol data unit; and processing the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit; and wirelessly transmitting the generated communication. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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39. An apparatus for wireless communication, comprising:
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means for determining whether to include an extension field in a physical layer preamble of a communication; means for generating the communication, wherein the communication comprises the preamble and a payload, the preamble including a first field indicating whether the extension field is included, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, the first field further including a sub-field including a length indicator of the wireless communication, the means for generating comprising; means for including modulation coding parameters for the payload in the first field when the rotation of the modulation of the signal field indicates that the extension field is not included in the communication; means for including coding parameters for the payload in the extension field when the rotation of the modulation of the signal field indicates that the extension field is included in the communication; means for processing the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the communication is for a single user non-aggregated media access control protocol data unit; and means for processing the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit; and means for wirelessly transmitting the generated communication.
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40. A non-transitory computer readable medium comprising instructions that when executed cause an apparatus to:
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determine whether to include an extension field in a physical layer preamble of a communication; generate the communication, wherein the communication comprises the preamble and a payload, the preamble including a first field indicating whether the extension field is included, the first field comprising a signal field, and a rotation of a modulation of the signal field being an indicator that the extension field is included in the communication, the first field further including a sub-field including a length indicator of the wireless communication; include modulation coding parameters for the payload in the first field when the rotation of the modulation of the signal field indicates that the extension field is not included in the communication; include coding parameters for the payload in the extension field when the rotation of the modulation of the signal field indicates that the extension field is included in the communication; process the sub-field as an indicator of a number of bytes when the rotation of the modulation of the signal field indicates that the communication is for a single user non-aggregated media access control protocol data unit; and process the sub-field as an indicator of a number of symbols when the rotation of the modulation of the signal field does not indicate that the wireless communication is for a single user non-aggregated media access control protocol data unit; and wirelessly transmit the generated communication.
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Specification