def rrInitialisationRequest():
    """RR Initialisation Request Section 9.1.28.a"""
    a = TpPd(pd=0x6)
    b = MessageType(mesType=0x3c)  # 00111100
    c = CiphKeySeqNrAndMacModeAndChannelCodingRequest()
    e = MobileStationClassmark2()
    f = Tlli()
    g = ChannelRequestDescription()
    h = GprsMeasurementResults()
    packet = a / b / c / e / f / g / h
    return packet
RR Initialisation Request Section 9.1.28.a