System and method of telephonic dialing simulation
US8165626B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 16, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiple mode, personal, wireless communications system exists within a radiotelephone network serving general customers and provides additional services to a select group of customers. The system uses handsets which automatically switch between a standard cellular radiotelephone mode of operation and an enhanced cordless mode when the handsets are within range of pico cells that are interconnected to the public switched telephone network. Each pico cell is controlled via a framework of overlay cells that operates independently of the radiotelephone network and uses a unique control protocol on a small number of reserved cellular channels. Each pico cell consists of a spectrally dynamic, non-capturing, frequency agile, multi-purpose base station provided at customer-selected locations to cooperate with the overlay cell framework. Each pico cell is capable of supporting multiple handsets and uses low power operation that achieves limited coverage. Each pico cell reduces traffic on the standard cellular radiotelephone network by independently handling registered handsets. An alternate line option module provides wireless local interconnect capability to selectively route call traff…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.