tokens: ['The', 'typical', 'physical', 'parameters', 'should', 'be', 'chosen', 'to', 'trigger', 'mechanisms', 'in', 'the', 'higher', 'layers', 'whilst', 'finding', 'relevant', 'conditions', 'for', 'assessment', 'of', 'UE', 'performance', 'beyond', 'PASSFAIL', 'The', 'empirical', 'Greenstein', 'model', '', 'has', 'constituted', 'the', 'basis', 'for', 'many', 'models', 'including', 'the', 'GPPGPP', 'spatial', 'channel', 'model', 'described', 'in', 'TR', '', 'The', 'path', 'gain', 'and', 'delay', 'spread', 'follow', '', 'with', 'the', 'shadow', 'correlated', 'with', 'the', 'delay', 'spread', 'and', 'assuming', 'uncorrelated', 'shadowing', 'between', 'sites', 'The', 'geometry', 'CI', 'is', 'the', 'ratio', 'between', 'the', 'path', 'gain', 'from', 'best', 'site', 'and', 'sum', 'of', 'path', 'gains', 'from', 'all', 'other', 'sites', '', 'sites', 'has', 'been', 'laid', 'out', 'at', 'various', 'ISD', 'intersite', 'distance', 'assuming', 'and', 'urban', 'suburban', 'and', 'rural', 'scenario', 'Figures', '', 'and', '', 'show', 'the', 'results', 'for', 'urban', 'environment', 'with', 'ISD', '', '', 'km', 'and', '', 'km', 'respectively', 'The', 'CDF', 'curves', 'display', 'the', 'cumulative', 'distribution', 'of', 'the', 'delay', 'spread', 'conditioned', 'on', 'a', 'certain', 'range', 'of', 'CI', 'Figure', '', 'Urban', 'environment', 'with', 'small', 'microcells', 'Figure', '']