Apparatus and method for calibration of gain and/or phase...

Telecommunications – Transmitter – Noise or interference elimination

Reexamination Certificate

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C375S296000

Reexamination Certificate

active

07974593

ABSTRACT:
An example of a radio frequency (RF) transmitter system for communication may include a transmit pre-distortion module configured to provide a second transmit calibration signal during a transmit calibration mode based on a first transmit calibration signal and one or more transmit calibration adjustment signals. The one or more transmit calibration adjustment signals may include an offset parameter associated with DC offset and an imbalance parameter associated with at least one of gain and phase imbalances. The system may include a transmit channel frequency converter coupled to the transmit pre-distortion module. The transmit channel frequency converter may be configured to provide a fourth transmit calibration signal during the transmit calibration mode based on a third transmit calibration signal and a transmit reference signal.

REFERENCES:
patent: 6509801 (2003-01-01), Lao et al.
patent: 6931343 (2005-08-01), Webster et al.
patent: 6937668 (2005-08-01), Sridharan et al.
patent: 7139540 (2006-11-01), Wu et al.
patent: 7286572 (2007-10-01), Hornbuckle et al.
patent: 7412006 (2008-08-01), Talwalkar et al.
patent: 7620373 (2009-11-01), Cole et al.
patent: 2003/0053561 (2003-03-01), Kuiri et al.
patent: 2004/0061644 (2004-04-01), Lier et al.
patent: 2004/0165678 (2004-08-01), Nadiri
patent: 2005/0018787 (2005-01-01), Saed
patent: 2005/0048938 (2005-03-01), Sahota
patent: 0 598 585 (1994-05-01), None
patent: 1035691 (2000-09-01), None
IEEE 802.16 Working Group on Broadband Wireless Access; http://wirelessMAN.org; IEEE802.16-05/070;IEEE P802.16-2004/Cor1/D5 (“Draft Corrigendum to IEEE Standard for Local and Metropolitan Area Networks—Part 16: Air Interface for Fixed Broadband Wireless Access Systems”); Sep. 16, 2005; SPID 154216881.25436; IEEE-SA Standards Board Form for Submittal of Proposed Standards; Coordination Comments and Responses; pp. 1-6.
IEEE 802.16 Working Group on Broadband Wireless Access; http://wirelessMAN.org; IEEE802.16-05/070r1;IEEE P802.16-2004/Cor1/D5 (“Draft Corrigendum to IEEE Standard for Local and Metropolitan Area Networks—Part 16; Air Interface for Fixed Broadband Wireless Access Systems”);Sep. 27, 2005; SPID 155215280.7971; IEEE-SA Standards Board Form for Submittal of Proposed Standards; Coordination Comments and Responses; pp. 1-7.
IEEE 802.16 Working Group on Broadband Wireless Access; http://wirelessMAN.org; IEEE802.16-05/070r2;IEEE P802.16-2004/Cor1/D5 (“Draft Corrigendum to IEEE Standard for Local and Metropolitan Area Networks—Part 16; Air Interface for Fixed Broadband Wireless Access Systems”);Sep. 28, 2005; SPID 155250025.28701; IEEE-SA Standards Board Form for Submittal of Proposed Standards; Coordination Comments and Responses; pp. 1-7.
802.16™ IEEE Standard for Local and Metropolitan Area Networks; Part 16: Air Interface for Fixed Broadband Wireless Access Systems; IEEE Std 802.16-2004 (revision of IEEE Std 802.16-2001); IEEE Computer Society and the IEEE Microwave Theory and Techniques Society; Oct. 1, 2004; pp. 1-895.

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