tokens: ['there', 'is', 'a', 'very', 'small', 'difference', 'between', 'LHR', 'and', 'IHR', 'mechanisms', 'so', 'that', 'there', 'is', 'limited', 'impact', 'regarding', 'the', 'system', 'capacity', 'Table', '', 'Call', 'drop', 'ratio', 'for', '', 'and', '', 'kmh', 'In', 'table', '', 'if', 'the', 'network', 'only', 'perform', 'x', 'transmissions', 'x', 'is', '', '', 'or', '', 'the', 'call', 'drop', 'ratio', 'will', 'be', 'lower', 'if', 'there', 'are', 'more', 'transmissions', 'If', 'the', 'network', 'perform', 'xy', 'transmissions', 'the', 'call', 'drop', 'ratio', 'will', 'be', 'further', 'reduced', 'eg', '', 'for', 'IHR', '', 'and', '', 'for', 'IHR', '', 'For', 'increased', 'power', 'for', 'HSDSCH', 'transmission', 'mode', 'the', 'call', 'drop', 'ratio', 'is', 'lower', 'than', 'the', 'IHR', '', 'mode', 'but', 'higher', 'than', 'all', 'other', 'IHR', 'modes', 'In', 'the', 'simulation', 'most', 'of', 'call', 'drops', 'happen', 'in', 'bad', 'radio', 'condition', 'and', 'the', 'network', 'may', 'not', 'have', 'available', 'power', 'for', 'HSDSCH', 'transmissions', 'so', 'the', 'effect', 'is', 'compromised', 'Table', '', 'Call', 'drop', 'ratio', 'for', 'different', 'HARQ', 'retransmission', 'numbers', '', 'kmh', 'Based', 'on', 'the', 'above', 'results', 'there', 'are', 'the', 'following', 'observations', '', 'The', 'IHR', 'mechanism', 'could', 'improve', 'call', 'drop', 'ratio', 'when', 'UE', 'radio', 'condition']