Title:
干渉キャンセル回路を有するマルチモード無線
Document Type and Number:
Japanese Patent JP2007505591
Kind Code:
A
Abstract:
A multi-mode wireless transmit/receive unit (WTRU) includes at least one antenna, first and second communication mode receivers and a first communication mode transmitter. The first and second receivers simultaneously receive signals from the antenna. The first transmitter generates and sends a first type of signal to the antenna while, at the same time, the second receiver receives a second type of signal from the antenna. In a preferred embodiment, the WTRU further includes a vector multiplier configured to reduce or eliminate interference of signals received by the second receiver, the interference being caused by the first transmitter. The vector multiplier adjusts the phase and amplitude of noise (i.e., spurious in-band noise) measured by the second receiver. The WTRU may further include a second communication mode transmitter configured to generate and send a second type of signal to the antenna.
Inventors:
Timothy A. Axness
Leonid Kazaku Bitch
Leonid Kazaku Bitch
Application Number:
JP2006533325A
Publication Date:
March 08, 2007
Filing Date:
May 21, 2004
Export Citation:
Assignee:
InterDigital Technology Corporation
International Classes:
H04J4/00; H04B1/00; H04B1/10; H04B1/40; H04B1/44; H04J1/00; H04J3/00; H04W48/18; H04Q
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe