US Patent No. 9,860,853

APPARATUS AND METHOD FOR CONTROLLING TRANSMIT POWER


Patent No. 9,860,853
Issue Date January 02, 2018
Title Apparatus And Method For Controlling Transmit Power
Inventorship Byoung-Hak Kim, Daejeon (KR)
Jae-Hwan Kim, Daejeon (KR)
Cheol-Ho Shin, Daejeon (KR)
Mi-Kyung Oh, Daejeon (KR)
Sang-Sung Choi, Daejeon (KR)
Assignee ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)

Claim of US Patent No. 9,860,853

1. An apparatus for controlling transmit power, comprising:
a global positioning system (GPS) receiving unit receiving GPS signals from one or more satellites and measuring signal strengths
of the GPS signals;

a processor calculating transmit power corresponding to a current position depending on the GPS signals according to a predefined
command;

a memory storing the command therein; and
a communication interface transmitting a data signal including data,
wherein the command includes commands for performing:
calculating free-space path loss (FSPL) between the current position and a base station depending on the GPS signals;
calculating an FSPL difference, which is a difference between FSPL at a previous position and FSPL at the current position;
calculating a GPS signal strength difference, which is a difference between an average of strengths of the respective GPS
signals corresponding to the previous position and an average of strengths of the respective GPS signals corresponding to
the current position; and

calculating the transmit power corresponding to the current position by adding transmit power corresponding to the previous
position, the FSPL difference, and the GPS signal strength difference to one another, and

wherein an environment is measured to generate the data, and
wherein the communication interface transmits the data signal including the data depending on the calculated transmit power.