BACKGROUND 0003. As wireless devices become more and more popular at offices,
homes, Schools, and so forth, users of such devices demand more functionality from Such …

0004 2. Description of the Related Art 0005 Wireless communications devices have become
much more prevalent in the last few years. Cell phones are commonplace, and Internet …

2. Background It is often desirable, and Sometimes necessary, to know the position of a
wireleSS user. For example, the Federal Com munications Commission (FCC) has adopted …

2. Background Art Methods of determining the location of network entities are often
implemented in wireless networks. Many wireless communications end-user devices, such …

BACKGROUND 0003. The use of wireless communication systems is growing with users
now numbering well into the millions. One of the most popular wireleSS communications …

BACKGROUND 0002 Many mobile devices utilize position determina tion techniques to
provide location based-services to the user of the mobile device. Such as navigation …

BACKGROUND 0003 Location tracking can refer to the attaining of the current position of a
mobile device (eg, mobile phone) regardless of whether the device is stationary or moving …

BACKGROUND 0001 Modern global cellular and non-cellular positioning technologies are
based on generating large global databases containing information on cellular and non …

BACKGROUND The capability to accurately determine the location of a cellular-enabled
mobile device is well known. For example, triangulation, trilateration and other techniques of …

BACKGROUND 0002. In communications networks, there may be a chal lenge to obtain
good performance and capacity for a given communications protocol, its parameters and the …