Communications system and communications unit for communicating over a base set of channels and an extended set of channels
US5678189A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Nov 2, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/044
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A communications system having a base station and a handset, capable of communicating over a base set of communication channels. Selecting one of the base channels for establishing communication. The handset sending a message, informing the base station, if it is capable of communicating over any extended set of communication channels, beyond the base set of channels, and if so, where the extended set of channels are located. The base station sends a message to the handset, informing the handset whether the base station has extended channel capability. If the base station has extended channel capability, the handset tunes its front end filters to match the indicated spectrum from the base station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.