Selective system scan for multizone radiotelephone subscriber units
US4905301A · kind A · utility
115Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radiotelephone subscriber unit which overcomes the problem of attempting to access an undesired radiotelephone system is disclosed. A comparison between the system identification transmitted on a control channel of a desired radiotelephone system and the system identification transmitted on an access channel is made during the access process of the subscriber unit. Access is permitted if the control channel system identification and the access channel system identification match.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.