tokens: ['This', 'clause', 'describes', 'the', 'architecture', 'for', 'location', 'acquisition', 'The', 'architecture', 'is', 'based', 'on', 'the', 'use', 'of', 'a', 'LAF', 'which', 'communicates', 'with', 'the', 'LARF', 'associated', 'with', 'an', 'MMEAMF', 'over', 'the', 'LIXLA', 'interface', 'To', 'use', 'the', 'location', 'acquisition', 'procedure', 'the', 'LAF', 'needs', 'to', 'determine', 'the', 'serving', 'MMEAMF', 'for', 'the', 'target', 'UE', 'NOTE', 'The', 'method', 'for', 'determining', 'the', 'serving', 'MMEAMF', 'is', 'not', 'defined', 'in', 'the', 'present', 'document', 'The', 'LAF', 'is', 'requested', 'to', 'perform', 'location', 'acquisition', 'via', 'the', 'LIHILA', 'interface', 'between', 'LEA', 'and', 'LAF', 'Upon', 'receiving', 'the', 'request', 'the', 'LAF', 'initiates', 'location', 'acquisition', 'to', 'the', 'LARF', 'via', 'the', 'LIXLA', 'interface', 'The', 'networks', 'shall', 'support', 'the', 'delivery', 'of', 'location', 'information', 'via', 'the', 'following', 'methods', '', 'Location', 'information', 'is', 'delivered', 'back', 'as', 'a', 'response', 'to', 'the', 'location', 'acquisition', 'request', 'via', 'the', 'LAF', 'over', 'the', 'LIXLA', 'and', 'the', 'LIHILA', 'interfaces', '', 'Location', 'information', 'is', 'delivered', 'via', 'the', 'MDF', 'over', 'the', 'LIXLA', 'and', 'the', 'LIHI', 'interfaces', 'The', 'two', 'delivery', 'options', 'may', 'be', 'used', 'simultaneously', 'The', 'LARF']