Control of forward link power CDMA mobile communication system
US6744754B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1998 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/325
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method for controlling forward link power in a CDMA mobile communication system is disclosed. The apparatus comprises a traffic channel correlator for performing a first correlation operation with respect to a code symbol of a CDMA signal received through a traffic channel, a pilot channel correlator for performing a second correlation operation with respect to a code symbol of the CDMA signal received through a pilot channel, a power control bit extractor for extracting a power control bit from the correlation value from the traffic channel which corresponds to a code symbol with a fixed transmission rate, a power estimator for estimating the average of reception power in response to the power control bit extracted by the power control bit extractor and the correlation value from the pilot channel correlator, a comparator for comparing the average reception power estimated by the power estimator with a predetermined power control reference value and generating a deviation of the average reception power from the predetermined power control reference value, and a power control bit generator for generating the final power control bit according to the deviation gene…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.