公开(公告)号：WO2007076301A2

公开(公告)日：2007-07-05

申请号：PCT/US2006062136

申请日：2006-12-15

Applicant: MOTOROLA INC ,  BELCEA JOHN M ,  ALAPURANEN PERTTI O

Inventor： BELCEA JOHN M ,  ALAPURANEN PERTTI O

IPC: H04W64/00

CPC classification number: G01S5/0205 ,  G01S5/0289 ,  H04W64/00

Abstract: A wireless communication device (e.g., 102) employs a method and apparatus for determining distances between wireless communications devices in a wireless communication network (100). The wireless device receives an incoming message signal (117) from at least one other wireless device (e.g., 101, 103-104) in the network. The message signal(s) includes a time of arrival of a ranging signal (121) previously transmitted by the wireless device. Responsive to receiving the message signal(s), the wireless device receives one or more incoming ranging signal(s) (120) from the other wireless device(s). Each ranging signal is received in a frequency range that is substantially less than the frequency range in which the messaging signal(s) was received. Having received the message signal(s) and the ranging signal(s), the wireless device then determines the distance between itself and the other wireless device(s) based at least on receipt of the ranging signal(s) and, more preferably, further based on the contents of the message signal(s).

Abstract translation: 无线通信设备（例如，102）采用用于确定无线通信网络（100）中的无线通信设备之间的距离的方法和装置。 无线设备从网络中的至少一个其他无线设备（例如，101,103-104）接收输入消息信号（117）。 消息信号包括先前由无线设备发送的测距信号（121）的到达时间。 响应于接收到消息信号，无线设备从其他无线设备接收一个或多个输入测距信号（120）。 在基本上小于接收到消息收发信号的频率范围的频率范围内接收每个测距信号。 在接收到消息信号和测距信号之后，无线设备至少基于接收到测距信号来确定自身与其它无线设备之间的距离，更优选地， 进一步基于消息信号的内容。