Title:
低価格で低精度のクロックを使用した精密なスリープタイマ
Document Type and Number:
Japanese Patent JP4503616
Kind Code:
B2
Abstract:
A wireless transmit/receive unit (WTRU) uses an oscillator providing accuracy for synchronized communications parameters in an active mode, and operates at reduced power during a discontinuous reception (DRX) mode. A real time clock (RTC) is used as the frequency standard during the reduced power operation, and a frequency adjustment is effected while the RTC is used as the frequency standard. By effecting the frequency adjustment, the RTC is able to be used as the frequency standard for substantial time periods, thereby reducing power consumption of the WTRU during the DRX mode.
Inventors:
Ict burtan
John W. Heim
Leonid Kazakovic
John W. Heim
Leonid Kazakovic
Application Number:
JP2006547269A
Publication Date:
July 14, 2010
Filing Date:
December 22, 2004
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04W52/02; H03B5/32; H04B1/16; H04B1/40; H04B7/005; H04B7/01; H04B7/015; H04L29/00; H04W52/28; H04W56/00
Domestic Patent References:
| JP2002353875A |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Atsuhiro Hamanaka
Naoyuki Watanabe
Kazuo Abe
Atsuhiro Hamanaka
Naoyuki Watanabe