IS-95 base station apparatus, W-CDMA base station apparatus, mobile communication system, and frequency sharing method
US6493332B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a frequency sharing method, IS-95 base station apparatuses and W-CDMA base station apparatuses are arranged in a one-to-one correspondence. The first base station transmission power value of the first base station apparatus is obtained in each frequency band in the IS-95 scheme. The second base station transmission power value of the second base station apparatus adjacent to the first base station apparatus is obtained. Whether there is a frequency band in the IS-95 scheme in which the sum of the first and second base station transmission power values is a predetermined threshold or more is determined. When there is a frequency band in the IS-95 scheme in which the sum is the predetermined threshold or more, a frequency handoff is performed to switch a communication channel in the IS-95 scheme which is using the frequency band in which the sum is not less than the predetermined threshold to another frequency band in the IS-95 scheme. An IS-95 base station apparatus, a mobile communication system, and a W-CDMA base station apparatus are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.