Method and apparatus for controlling transmission power while in soft handoff
US6512925B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for adjusting the transmission power of base stations in simultaneous communication with a mobile station. The methods described provide for the transmission power of the base stations to be aligned. In the first exemplary embodiment, the transmitters are attached to a separate control unit through communication links. The control unit then derives the most likely command stream and send that to the base stations. In the second exemplary embodiment, the control unit periodically receives the final or average transmit level in a period and an aggregate quality measure for the feedback during a period from each of the transmitters. The control unit determines the aligned power level and transmits a message indicative of the aligned power level to the transmitters. In the third exemplary embodiment, the transmitters send the control unit a message indicative of the transmit power of transmissions to the receiver. The control unit determines the aligned transmit power based on the current transmit power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.