公开(公告)号：US20150358780A1

公开(公告)日：2015-12-10

申请号：US14762195

申请日：2013-02-15

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Jarmo Ilkka SAARI ,  Kanji KERAI ,  Timo Juhani TOIVANEN

IPC: H04W4/02 ,  H04B17/27 ,  H04W52/28 ,  G01S5/14 ,  H04W52/22 ,  H04W4/00 ,  H04W52/02 ,  H04B17/318 ,  H04W52/24

CPC classification number: H04W4/023 ,  G01S5/14 ,  G01S13/74 ,  H04B17/27 ,  H04B17/318 ,  H04W4/02 ,  H04W4/021 ,  H04W4/80 ,  H04W52/0245 ,  H04W52/225 ,  H04W52/245 ,  H04W52/283 ,  H04W84/18 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144

Abstract: A second device (12) comprises: a transmitter configured to transmit a first signal to a first device (11); a receiver configured to receive a second signal that has been transmitted by the first device (11); a demodulator configured to demodulate a second message from the second signal, the second message including an indication of signal strength of the first signal as measured by the first device (11); a signal strength measuring module configured to measure signal strength of the received second signal; and a calculator configured to use the indication of the measured signal strength included in the second message and the signal strength of the second signal as measured by the second device (12) to calculate a measure of the distance between the first and second devices (11, 12).

Abstract translation: 第二设备（12）包括：发射机，被配置为将第一信号发射到第一设备（11）; 接收器，被配置为接收由第一设备（11）发送的第二信号; 解调器，被配置为从所述第二信号解调第二消息，所述第二消息包括由所述第一设备（11）测量的所述第一信号的信号强度的指示; 信号强度测量模块，被配置为测量所接收的第二信号的信号强度; 以及计算器，被配置为使用包括在第二消息中的测量信号强度的指示和由第二设备（12）测量的第二信号的信号强度来计算第一和第二设备（11）之间的距离的度量 ，12）。