Data communication system using spectral overlay
US5548805A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Aug 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/32
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data communication system is provided for use with a cellular system containing an array of cells and a cellular transmitter/receiver located within each cell of the array. Each cellular transmitter/receiver is adapted for transmitting and receiving voice and/or data communication over predetermined channelized frequencies associated with the particular cell in which the cellular transmitter/receiver is located. In accordance with the invention a base data transmission station is located in each cell and is adapted for transmitting a single data stream across a plurality of channels, each of which channels is adapted to carry a single stream of information. Each base data transmitting station does not transmit on the predetermined channels that are assigned to the particular cell in which the base data transmitting station is located (i.e., those channels are "notched"). In one embodiment used channels that are carrying streams of information in adjacent cells are detected and the base data transmission station does not transmit over the frequencies of the used channels (i.e., the used channels are "notched"). In this manner, the single data stream transmitted by the base data tr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.