86results about How to "Optimize transmit power" patented technology

A passive transponder is started up by receiving an interrogation signal and returning a requested response signal. The startup is controlled by an interrogator using a startup control method by judging presence or absence of a return of the response signal while monotonically increasing transmission power of the interrogation signal from an initial value by an amount which is made smaller stepwise every time presence of the return is judged and maintaining the transmission power, after presence of the return is judged, at its value as of the time when presence of the return was judged.

In the case that PDSCH is only transmitted by a specific base station and DPCH is transmitted by multiple base stations at the same time, and the transmission power of PDSCH is controlled according to DPCH, the optimal value of the power ratio between PDSCH and DPCH is optimized according to the position of the mobile station, so that in the soft Regardless of the location of the mobile station during handover, the receiving quality of PDSCH remains constant at a stable level. In a specific base station, the ratio between the transmission power of PDSCH and the transmission power of DPCH as a dedicated channel is controlled, so that the ratio can be optimized according to the position of the mobile station in soft handoff, so that it can become according to the soft handoff in the mobile station. The measured value of the received power of the shared channel or the dedicated channel of the handover base station determines the ratio. Specifically, the mobile station notifies the specific base station of these measurement results, and the notified characteristic base station multiplies the measurement results by a coefficient determined according to the transmission power of the DPCH which is a dedicated channel transmitted by the base station itself and transmits it.