526 transmit type bd frame this action includes all

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Unformatted text preview: py of the Transfer Frame to the Sent_Queue with the To_Be_Retransmitted_Flag NOT set; c) if the Sent_Queue was previously empty, setting the Transmission_Count to ‘1’; CCSDS 232.1-B-2 Page 5-10 September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 d) starting the Timer; e) setting the AD_Out_Flag to ‘Not_Ready’; f) passing a copy of the Transfer Frame to the Lower Procedures using a ‘Transmit Request for (AD) Frame’. 5.2.5 ‘TRANSMIT TYPE-BC FRAME’ This action includes all the functions necessary to prepare a Type-BC Transfer Frame for transmission. In particular it includes: a) adding the master copy of the Transfer Frame to the Sent_Queue with the To_Be_Retransmitted_Flag NOT set; b) setting the Transmission_Count to ‘1’; c) starting the Timer; d) setting the BC_Out_Flag to ‘Not_Ready’; e) passing a copy of the Transfer Frame to the Lower Procedures using a ‘Transmit Request for (BC) Frame’. 5.2.6 ‘TRANSMIT TYPE-BD FRAME’ This action includes all the functions necessary to prepare a Type-BD Transfer Frame for transmission. In particular it includes: a) setting the BD_Out_Flag to ‘Not_Ready’; b) passing a copy of the Transfer Frame to the Lower Procedures using a ‘Transmit Request for (BD) Frame’. 5.2.7 ‘INITIATE AD (OR BC) RETRANSMISSION’ This action includes: a) passing an ‘Abort’ Request to the Lower Procedures; b) incrementing the Transmission_Count; c) starting the Timer; d) marking all Type-AD Transfer Frames (or the Type-BC Transfer Frame) on the Sent_Queue as ‘To_Be_Retransmitted’. CCSDS 232.1-B-2 Page 5-11 September 2010 RECOMMENDED STANDARD FOR COMMUNICATIONS OPERATION PROCEDURE-1 5.2.8 ‘REMOVE ACKNOWLEDGED FRAMES FROM SENT_QUEUE’ This action includes: a) generating a ‘Positive Confirm Response to Request to Transfer FDU’ for each acknowledged Transfer Frame and deleting the Transfer Frame; b) updating the value of NN(R); c) setting the Transmission_Count to ‘1’. 5.2.9 ‘LOOK FOR DIRECTIVE’ This action includes: a) checking if the BC_Out_Flag is set to ‘Ready’. If not, no further...
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This document was uploaded on 03/06/2014.

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