tokens: ['The', 'IE', 'NextHopChainingCount', 'is', 'used', 'to', 'update', 'the', 'KgNB', 'key', 'and', 'corresponds', 'to', 'parameter', 'NCC', 'See', 'TS', '', 'Security', 'architecture', 'and', 'procedures', 'for', 'G', 'System', '', '', 'NextHopChainingCount', 'information', 'element', '', 'ASNSTART', '', 'TAGNEXTHOPCHAININGCOUNTSTART', 'NextHopChainingCount', '', 'INTEGER', '', '', 'TAGNEXTHOPCHAININGCOUNTSTOP', '', 'ASNSTOP']