Method and apparatus for signal strength measurement and antenna selection in cellular radiotelephone systems
US4704734A · kind A · utility
128Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1986 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Feb 18, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/24
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for determining which sector antenna of a sectorized cellular radiotelephone system is receiving the strongest radio signal is disclosed. The signal strength of sector antennas is sequentially sampled, converted to digital representations, and stored according to which antenna received the signal. The digital representations are recalled from storage and the strongest signal along with an identification of the receiving antenna are determined. This determination may be used in the handoff process or in detecting when a remote unit requires a handoff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.