Method of enabling low tier location applications
US8050686B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2000 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Nov 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a wireless communication network having remote receivers (subscriber units) communicating through base units in a service area, each of the base units servicing a cell area encompasses one or more identifiable zones which can be occupied by receivers. According to the invention, at least one measure of the spatial size of the cell is reported to a receiver communicating with a base station, for use in location specific applications. The measure can be a size category, an average diameter or another measure, such as a shape and orientation of the cell, a boundary apex, and a boundary line of the cell. The base station coordinates are conventionally available to the receiver. By providing a measure of size, the receiver can resolve its zone or location to a coarse or low level of resolution. The zone occupied by the receiver is at least within the cell and the size of the cell and location of the base station are now known. According to additional embodiments, the resolved zone known to be occupied by the receiver is refined to an area within the defined cell area. The size of the cell or service area of the location transmitter can be appended to the identification code of the ba…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.