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This primitive provides the PHY operational parameters.

このプリミティブはPHY操作パラメータを提供する

The primitive provides the following parameters:

このプリミティブは下記パラメータを提供する

 PLME-CHARACTERISTICS.confirm(
  aSlotTime,
  aSIFSTime,
  aSignalExtension,
  aCCATime,
  aCCAMidTime,
  aRxPHYStartDelay,
  aRxTxTurnaroundTime,
  aTxPHYDelay,
  aRxPHYDelay,
  aRxTxSwitchTime,
  aTxRampOnTime,
  aAirPropagationTime,
  aMACProcessingDelay,
  aPreambleLength,
  aRIFSTime,
  aSymbolLength,
  aSTFOneLength,
  aSTFTwoLength,
  aLTFOneLength,
  aLTFTwoLength,
  aPHYHeaderLength,
  aPHYSigTwoLength,
  aPHYServiceLength,
  aPHYConvolutionalTailLength,
  aPSDUMaxLength,
  aPPDUMaxTime,
  aIUSTime,
  aDTT2UTTTime,
  aCWmin,
  aCWmax,
  aMaxCSIMatricesReportDelay
  aMaxTODError,
  aMaxTOAError,
  aTxPHYTxStartRFDelay,
  aTxPHYTxStartRMS,
  aMaxTODFineError,
  aMaxTOAFineError
)

The values assigned to the parameters are as specified in the PLME SAP interface specification contained within each PHY subclass of this standard. Not all parameters are used by all PHYs defined within this standard.

このパラメータに割り当てられた値はこの標準のPHYに含まれる記述のPLME SAPインターフェースに記述される。
すべての定義がこの標準で使用されるわけではない。

Name	Type	Description
aSlotTime	integer	The Slot Time (in microseconds) that the MAC uses for defining IFSs. See 10.3.7.
aSIFSTime	integer	The nominal time (in microseconds) that the MAC and PHY require in order to receive the last symbol of a frame on the WM, process the frame, and respond with the first symbol on the WM of the earliest possible response frame. See 10.3.7.
aSignalExtension	integer	Duration (in microseconds) of the signal extension (i.e., a period of no transmission) that is included at the end of certain PPDU formats; see 19.3.2 and 10.3.8.
aCCATime	integer	For Clause 15 through Clause 18 PHYs and Clause 20 PHYs, the maximum time (in microseconds) the CCA mechanism has available to assess the medium to determine whether the medium is busy or idle. For Clause 19 and Clause 21 PHYs, the maximum time (in microseconds) that the CCA mechanism has available to detect the start of a valid IEEE 802.11 transmission within the primary channel and to assess the energy on the medium within the primary, secondary, secondary40 (Clause 21 PHY only), and secondary80 (Clause 21 PHY only) channels that fall inside the operating channel, in order to determine the values of the STATE and channel-list parameters of the PHY-CCA.indication primitive.
aCCAMidTime	integer	For Clause 21 PHYs, the maximum time (in microseconds) the CCA mechanism has available to assess the medium to determine whether an IEEE 802.11 transmission is present on a nonprimary channel.
aRxPHYStartDelay	integer	The delay, in microseconds, from the start of the PPDU at the receiver’s antenna to the issuance of the PHY-RXSTART.indication primitive.
aRxTxTurnaroundTime	integer	The maximum time (in microseconds) that the PHY requires to change from receiving to transmitting the start of the first symbol. See 10.3.7.
aTxPHYDelay	integer	The nominal time (in microseconds) that the PHY uses to deliver a symbol from the MAC interface to the air interface.
aRxPHYDelay	integer	The nominal time (in microseconds) that the PHY uses to deliver the last bit of a received frame from end of the last symbol on the WM to the MAC.
aRxTxSwitchTime	integer	The nominal time (in microseconds) that the PHY takes to switch from Receive to Transmit.
aTxRampOnTime	integer	The maximum time (in microseconds) that the PHY takes to turn the Transmitter on.
aAirPropagationTime	integer	Twice the propagation time (in microseconds) for a signal to cross the maximum distance between the most distant allowable STAs that are slot synchronized.
aMACProcessingDelay	integer	The maximum time (in microseconds) available for the MAC to issue a PHY-TXSTART.request primitive pursuant to a PHY-RXEND.indication primitive (for response after SIFS) or PHY-CCA.indication(IDLE) primitive (for response at any slot boundary following a SIFS). This constraint on MAC performance is defined as a PHY-specific parameter because of its use, along with other PHY-specific time delays, in calculating the two PHY characteristics of primary concern to the MAC: aSlotTime and aSIFSTime. See 10.3.7.
aPreambleLength	integer	The current PHY’s preamble length (in microseconds). If the actual value of the length of the modulated preamble is not an integer number of microseconds, the value is rounded up to the next higher value.
aRIFSTime	integer	Value of the reduced interframe space (in microseconds), which is the time by which multiple transmissions from a single transmitter may be separated, when no SIFS-separated response transmission is expected. See 10.3.2.3.2 aSymbolLength integer The current PHY’s Symbol length (in microseconds). If the actual value of the length is not an integer number of μs, the value is rounded up to the next higher value.
aSTFOneLength	integer	Length of the non-HT-STF (L-STF) for HT-mixed format, and the HTgreenfield STF (HT-GF-STF) for HT-greenfield format (in microseconds) aSTFTwoLength integer Length of the HT-STF (in microseconds) aLTFOneLength integer Length of the First HT-LTF (in microseconds) aLTFTwoLength integer Length of the Additional HT-LTFs (in microseconds) aPHYHeaderLength integer The current PHY’s header length (in microseconds), excluding aPHYSigTwoLength if present. If the actual value of the length of the modulated header is not an integer number of microseconds, the value is rounded up to the next higher value.
aPHYSigTwoLength	integer	Length of the HT SIGNAL field (HT-SIG) (in microseconds).
aPHYServiceLength	integer	The length of the PHY SERVICE field (in number of bits).
aPHYConvolutionalTailLength	integer	The length of the sequence of convolutional code tail bits (in number of bits).
aPSDUMaxLength	integer	The maximum number of octets in a PSDU that can be conveyed by a PPDU.
aPPDUMaxTime	integer	The maximum duration of a PPDU in milliseconds.
aIUSTime	integer	The minimum time between the end of a PSMP-UTT and the start of the following PSMP-UTT in the same PSMP sequence.
aDTT2UTTTime	integer	The minimum time between the end of a PSMP-DTT and the start of the PSMP-UTT addressed to the same STA.
aCWmin	integer	The minimum size of the CW, in units of aSlotTime.
aCWmax	integer	The maximum size of the CW, in units of aSlotTime.
aMaxCSIMatricesReportDelay	integer	The maximum time (in milliseconds) between the reception of a frame containing a CSI Feedback Request or an null data packet (NDP) announcement and the transmission of the first CSI frame containing channel state information measured from the received Sounding Complete frame. See 10.32.2.4.4.
aMaxTODError	Integer	An estimate of the maximum error (in 10 ns units) in the TX_START_OF_FRAME_OFFSET value in the PHYTXSTART. confirm(TXSTATUS) primitive. The estimated maximum error includes any error due to implementation component and environmental (including temperature) variability.
aMaxTOAError	Integer	An estimate of the maximum error (in 10 ns units) in the RX_START_OF_FRAME_OFFSET value in the PHYRXSTART. indication(RXVECTOR) primitive. The estimated maximum error includes any error due to implementation component and environmental (including temperature) variability.
aTxPHYTxStartRFDelay	Integer	The delay (in units of 0.5 ns) between a PHY-TXSTART.request primitive being issued and the first frame energy sent by the transmitting port, for the current channel.
aTxPHYTxStartRMS	Integer	The RMS time of departure error (in units of 0.5 ns), where the time of departure error equals the difference between TIME_OF_DEPARTURE and the time of departure measured by a reference entity using a clock synchronized to the start time and mean frequency of the local PHY entity’s clock.
aMaxTODFineError	Integer	An estimate of the maximum error (in units of picoseconds) in the TX_START_OF_FRAME_OFFSET value in the PHYTXSTART. confirm(TXSTATUS) primitive. The estimated maximum error includes any error due to implementation component and environmental (including temperature) variability.
aMaxTOAFineError	Integer	An estimate of the maximum error (in units of picoseconds) in the RX_START_OF_FRAME_OFFSET value in the PHYRXSTART. indication(RXVECTOR) primitive. The estimated maximum error includes any error due to implementation component and environmental (including temperature) variability.

This primitive is issued by the PHY entity in response to a PLME-CHARACTERISTICS.request primitive.

このプリミティブはPLME-CHARACTERISTICS.requestプリミティブへの返答として実施される。

The receipt of this primitive provides the operational characteristics of the PHY entity.

このプリミティブの受信はPHYエンティティの特徴を提供する。