Title:
受信機のタイミングを送信機のタイミングに同期させる方法及び装置
Document Type and Number:
Japanese Patent JP5280438
Kind Code:
B2
Abstract:
The present application relates to a method and an apparatus for synchronizing a receiver timing to a transmitter timing using a known preamble of a signal. In at least one embodiment of the method and/or the apparatus of the present application, a power normalized cross-correlation metric (PNCC metric) is estimated based on a signal power and a noise floor power. According to a first embodiment, two cross-correlation functions, one based on the PNCC metric and the other based on a cross-correlation metric, are used to decide if synchronization events occur and based on the analysis of time indexes and PNCC magnitude values, a timing synchronization index used to synchronize receiver timing to transmitter timing is determined. According to a second embodiment, the cross-correlation function based on the PNCC metric is used to decide if synchronization events occur and based on an analysis of time indexes and PNCC magnitude values using a clustering approach, a timing synchronization index is determined.
Inventors:
Nilsbo, Magnus
Sapoznikov, Vitaly
Lyon Helm, Scott
Sapoznikov, Vitaly
Lyon Helm, Scott
Application Number:
JP2010513153A
Publication Date:
September 04, 2013
Filing Date:
June 25, 2007
Export Citation:
Assignee:
NANORADIO AB
International Classes:
H04J11/00
Domestic Patent References:
| JP2002118542A | ||||
| JP2000278242A | ||||
| JP2005064567A | ||||
| JP2005295085A | ||||
| JP11088455A | ||||
| JP2006173764A |
Foreign References:
| US20030161428 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama