[ns] error while exicuting UMTS FDD

[harpreet]

hi
i am getting error while exicuting UMTSFDD  

set opt(chan)    Channel/FddChannel;    # channel type
set opt(prop)    Propagation/UmtsFdd;   # radio propagation model
set opt(netif)   Phy/UmtsFddPhy;        # network interface type
set opt(macbs)   Mac/UmtsFdd/BS;        # BS MAC type
set opt(macms)   Mac/UmtsFdd/MS;        # MS MAC type

Mac/UmtsFdd set verbose_ 0;             # to include MAC verbose output
Mac/UmtsFdd set alloc_trace_ 0;         # trace allocated blocks
Mac/UmtsFdd set snr_trace_ 1;           # trace SNR
Mac/UmtsFdd set txpower_trace_ 1;       # trace tx power
Mac/UmtsFdd set DCH_UL_SF_ 128;         # uplink DCH SF
Mac/UmtsFdd set min_DSCH_SF_ 4;
Mac/UmtsFdd set mean_inter_ -75;
Mac/UmtsFdd set var_inter_ 0;
Phy/UmtsFddPhy set error_rate_ 0;
Phy/UmtsFddPhy set verbose_ 0;



this give me error
invalid command name "Mac/UmtsFdd"
    while executing
"Mac/UmtsFdd set verbose_ 0"
    (file "umts_fdd.tcl" line 35)



if anybody knows how to define these umtsfdd parameter. please help in this 
metter.
thanks

harpreet singh