Adaptive Transmission Power Control for Cognitive Radio

• US 20110217944A1
• Filed: 05/16/2011
• Published: 09/08/2011
• Est. Priority Date: 02/20/2007
• Status: Active Grant

• Current Assignee: Siliconwaves Technologies Company Limited
• Original Assignee: Adaptrum Inc.
• Inventors: Tang, Haiyun
• Granted Patent: US 8,509,706 B2
• Time in Patent Office: Days
• US Class Current: 455/226.2
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 17/327 Received signal code power [RSCP]
• CPC Class Codes: H04B 17/354 Adjacent channel leakage power
• CPC Class Codes: H04N 5/50 Tuning indicators; Automatic tuning control
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

Embodiments of cognitive radio technology can recover and utilize under-utilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to adjacent channel measurements. Digital pre-distortion techniques can enhance performance. Embodiments of a high DNR transceiver architecture can be employed.

Claims

1. A method comprising:

receiving a signal; and

determining a transmission power, at least in part, based upon said signal.