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P. 748

2                                                 Transport aspects


                               Table 9-10 – Receiver initiated FRA request command for the NOI
                                               (sent by the FTU-O and FTU-R)

                     Field name               Format                           Description
             Command header             One byte: [00       aaaaaa = 0316
                                        aaaaaa]
             Configuration identifier   One byte: [bbbb     aaaa = New FRA configuration change count (FCCC),
                                        aaaa]               identifier for the new active configuration
                                                            (see clause 13.3.1.1.3).
                                                            bbbb = Identifier specifying the baseline bit-loading table
                                                            over which FRA adjustments shall be applied to construct
                                                            the active bit-loading table, expressed as a value of SCCC
                                                            (see clause 13.2.1.1.5).
             FRA adjustment data        Five bytes          Defines the adjustments to be used to construct a new
                                                            active bit-loading table. The format of the FRA adjustment
                                                            data is defined in Table 9-12.
             NOTE – The FTU shall be capable of handling up to two receiver initiated FRA requests conveyed over a single RMC
             message: one for the NOI and one for the DOI (see Table 9-11).


                               Table 9-11 – Receiver initiated FRA request command for the DOI
                                               (sent by the FTU-O and FTU-R)

                    Field name               Format                            Description

             Command header           One byte: [00 aaaaaa]   aaaaaa = 0416
             Configuration data       One byte: [bbbb aaaa]   aaaa = New FRA configuration change count (FCCC),
                                                            identifier for the new active configuration
                                                            (see clause 13.3.1.1.3).
                                                            bbbb = Identifier specifying the baseline table over which
                                                            FRA adjustments shall be applied to construct the active
                                                            bit-loading table, expressed as a value of SCCC
                                                            (see clause 13.2.1.1.5).
             FRA adjustment data      Five bytes            Defines the adjustments to be used to construct a new
                                                            active bit-loading table. The format of the FRA adjustment
                                                            data is defined in Table 9-12.
             NOTE – The FTU shall be capable of handling up to two receiver initiated FRA requests conveyed over a single RMC message: one
             for the DOI and one for the NOI (see Table 9-10).






























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