Section: 5.9.4.5 Setting of the contents of MBS Interest Indication
Content: The UE shall set the contents of the MBS Interest Indication as follows: 1> if the UE has a valid version of SIB21 for the PCell; and 1> if the set of MBS frequencies of interest, determined in accordance with 5.9.4.3, is not empty: 2> include mbs-FreqList and set it to include the MBS frequencies of interest sorted by decreasing order of interest, using the absoluteFrequencySSB for serving frequency, if applicable, and the ARFCN-ValueNR(s) as included in SIB21 or in USD (for neighbouring frequencies); 2> include mbs-Priority if the UE prioritises reception of all indicated MBS frequencies above reception of any of the unicast bearers and multicast MRBs; NOTE 1: If the UE prioritises MBS broadcast reception and unicast/multicast data cannot be supported because of congestion on the MBS carrier(s), NG-RAN may for example initiate release of unicast bearers/multicast MRBs. 2> if SIB20 is provided for the PCell or for the SCell: 3> include mbs-ServiceList and set it to indicate the set of MBS services of interest sorted by decreasing order of interest determined in accordance with 5.9.4.4. NOTE 2: The mbs-ServiceList is not required to be used by the NG-RAN to determine the frequency on which to enable MBS broadcast reception for the UE. 1> if nonServingCellMII is included in SIB1 for the PCell; and 1> if the set of MBS frequencies for MBS broadcast reception on non-serving cell, determined in accordance with 5.9.4.3, is not empty: 2> include freqInfoMBS; 2> if the UE has acquired cfr-InfoMBS and subcarrierSpacing for MBS broadcast reception on the non-serving cell: 3> include cfr-InfoMBS and subcarrierSpacing;