Transmitting apparatus, receiving apparatus and transmission power control method
US7920889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2006 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | May 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/262
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transmitting apparatus, a receiving apparatus and a transmission power control method wherein even in a case of performing a transmission power control of multi-valued modulated symbols, the degradation of reception characteristic and that of network usage efficiency can be avoided. A power control instructing part (204) adjusts, based on an encoding rate and a modulation scheme in a case of applying a power control value, which maximizes the MIMO channel capacity, to each stream, the power control value of a stream, which is the most likely to be affected by a power estimation error, into a reference value, and then applies the adjustment value used for that adjustment to the other streams, that is, the streams that are not likely to be affected by the power estimation error. A power control part (205) performs a transmission power control in accordance with the power control value as adjusted by the power control instructing part (204).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.