High

High-Rise Buildings

There are many factors that affect the cellular signal coverage in each individual building. The distance of the building from base station, the building structure and height, the surrounding environment, the base station antenna height and its down-tilt angle are major factors that affect cellular signal coverage inside each individual building. The actual cellular signal level varies from building to building and varies from floor to floor in each individual building. Generally speaking, taller a floor (except the ground floor) in a building, weaker the cellular signals there. In average, inside floors above 10^th floor of a building, cellular signals are very poor and cellular communications are severally worsened. That is where 3D cellular network can significantly increase cellular signal level and improve cellular communications. The direct beneficiaries of 3D cellular network are cellular customers who live and/or work in upper floors of high-rise buildings, especially who are inside floors above the 10^th floor. That means more high-rise buildings and taller of high-rise buildings, more cellular customers will benefit from 3D cellular network, and bigger the market value of 3D cellular network. That is why a statistic table of high-rise buildings in the world is listed here below.

The table below lists the statistic data of high-rise buildings and estimated populations inside them in twenty major countries and region around the world. Data in the table are from website: www.emporis.com, the most authentic website about high-rise buildings in the world. However, data of some developing countries in the website are obsolete and under-estimated. For example, actual high-rise buildings in China may be three to five times more than the data shown in the website. Nevertheless, it still can be used as reference to evaluate the potential market value of 3D cellular network. The most valuable data in the table are total floors above the 10^th floors (not include 10^th floor) of high-rise buildings and its relevant population inside. The data of under construction high-rise buildings indicate developing situation of high-rise buildings in each country or region. In general, massive constructions of high-rise buildings are undergoing in some developing countries like China, Brazil, Mexico and India. While in most developed countries like the United State of America, Canada and west European countries, the constructions of high-rise buildings are relatively slow and stable. 3D cellular network has been filed patent protection in all countries and region listed in this table.

The average market value of each cellular customer varies from country to country. In the United States of America, it is about US$600 a year. The average market value of commercial cellular customer is even higher than that. From data in the table below, the potential market value of 3D cellular network in each country or region can be easily estimated. For example, the potential market value of 3D cellular network in the Unites Station of America is estimated to be more than one billion US dollars a year!

		High-rise Buildings Statistics in 20 Major Countries & Region
										October 2007 Data From Emporis
	Country	Population	High-rise buildings (completed)	High-rise buildings (under construction)	Under construction / completed (growth rate?)	Total Floors of High-rise (completed)	Total floors of high-rise (10th floor above)	Estimated Populations in High-rise (completed)	Estimated populations in high-rise (10th floor above)	Estimated cellular customers in high-rise (completed)	Estimated cellular customers in high-rise (10th floor above)
North & South America	USA	302,545,343	19,705	850	4.3%	371,473	175,450	12,815,811	6,053,026	9,101,083	4,298,526
	Canada	31,612,897	5,148	275	5.3%	92,156	40,945	3,179,372	1,412,612	2,257,815	1,003,159
	Brazil	185,516,519	15,764	2,159	13.7%	271,788	116,451	9,376,691	4,017,567	6,658,809	2,853,055
	Mexico	107,458,000	1,354	211	15.6%	21,984	8,661	758,436	298,790	538,600	212,184
Asia Pacific Region	Hong Kong	6,943,600	7,660	150	2.0%	205,058	129,778	5,658,503	4,118,390	4,018,357	2,924,653
	Mainland China	1,300,000,000	5,900	1,331	22.6%	145,760	87,258	5,028,717	3,010,397	3,571,118	2,137,818
	Japan	125,931,533	5,615	205	3.7%	92,505	38,795	3,191,414	1,338,441	2,266,367	950,487
	South Korea	48,289,173	3,104	89	2.9%	67,054	36,136	2,313,367	1,246,695	1,642,826	885,334
	Singapore	4,351,400	3,761	138	3.7%	66,010	28,474	2,157,071	972,699	1,531,833	690,758
	Australia	19,522,744	2,588	144	5.6%	45,126	19,592	1,556,848	675,932	1,105,588	480,010
	India	1,027,015,247	1,512	805	53.2%	25,013	10,124	862,961	349,264	612,828	248,028
	Israel	7,006,700	1,473	271	18.4%	23,124	8,405	797,787	289,971	566,545	205,921
Europe (EPO)	Spain	45,116,894	7,789	233	3.0%	112,094	34,348	3,867,226	1,185,007	2,746,291	841,527
	UK	60,200,000	3,134	167	5.3%	48,999	17,857	1,690,458	616,076	1,200,470	437,503
	Turkey	69,660,559	2,891	259	9.0%	46,039	17,198	1,588,332	593,320	1,127,946	421,343
	Germany	82,501,000	2,107	44	2.1%	33,556	13,073	1,157,698	451,032	822,133	320,298
	France	62,700,000	1,788	20	1.1%	30,945	13,096	1,067,603	451,817	758,153	320,856
	Netherlands	16,032,240	1,637	98	6.0%	24,882	8,462	858,443	291,936	609,619	207,317
Africa	South Africa	43,426,386	584	20	3.4%	10,258	4,418	353,888	152,408	251,312	108,232
	Total	3,545,830,235	93,514	7,470	8.0%	1,733,823	808,521	58,280,629	27,525,381	41,387,693