BACKGROUND Wireless devices are increasingly dependent upon their location as context
for various applications. In some approaches, an initiating wireless station (eg, a wireless …

BACKGROUND 0001 Wireless networks have grown increasingly in importance and have
varying uses. In addition to commu nications, it is useful to provide position information in …

BACKGROUND Wireless networks are networks that use radio waves to carry information
from one node in the network to one or more other nodes in the network. Wired …

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 …

It is sometimes desirable to locate the position of a station operable within a wireless, eg,
radio frequency (RF), network. For example, the United States Federal Commu nications …

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 Wireless communications networks generally allow for Voice and/or data
communications between wireless units, eg, wireless telephones (analog, digital, cellular …

BACKGROUND The invention relates generally to modulated carrier wave communication
devices, and more particularly, to communi cation method, apparatuses, and systems using …

BACKGROUND Wireless devices, such as cellular telephones, are increas ingly using
location-based services. In a typical example, an application running on a wireless device …

The invention pertains to location approximation of devices, eg, wireless access points and
client devices in a wireless network. Location estimates may be obtained by …