Power control of a multi-subchannel mobile station in a mobile communication system
US6690944B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1999 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Apr 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A closed loop power control apparatus is implemented within a basestation that receives a series of physical channels from a mobile station simultaneously in a DS-CDMA communication system such as those based on the cdma2000 specifications. This power control apparatus includes a series of Rakes that separate the code-subchannels, a series of SINR estimation devices that estimate the SINR for each of the code-subchannels, and a series of comparators thaw generate a multiple of power control bits that correspond to comparison results between the SINR estimates and a set of power threshold levels. These power control bits are transmitted to the mobile station and subsequently allow the mobile station to control the transmit powers for the physical channels individually.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.