Invention Grant
- Patent Title: Dynamic digital predistortion for a microwave radio system
- Patent Title (中): 微波无线电系统的动态数字预失真
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Application No.: US14081977Application Date: 2013-11-15
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Publication No.: US09363130B2Publication Date: 2016-06-07
- Inventor: Thanh Hung Nguyen , Ying Shen , Andrey Kochetkov , Aleksandr Semenyshev , William Schmid
- Applicant: ZTE (USA) Inc
- Applicant Address: US TX Austin
- Assignee: ZTE (USA) INC.
- Current Assignee: ZTE (USA) INC.
- Current Assignee Address: US TX Austin
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H04L25/08
- IPC: H04L25/08 ; H04L27/36 ; H03G3/30 ; H04B1/62 ; H03F1/32 ; H04L27/38

Abstract:
A method for performing digital predistortion to a microwave radio transceiver in response to an increase/decrease of transmit power level is disclosed. If the new transmit power level is higher than the current transmit power level, a set of digital predistortion (DPD) coefficients is applied to the transceiver before the issuance of a transmit power level increase command to the transceiver. Otherwise, a transmit power level decrease command is issued to the transceiver before the application of the set of DPD coefficients to the transceiver. Determining the set of DPD coefficients for the transceiver involves two stages: (i) calibrating the transceiver at a room temperature under predefined conditions and generating a DPD lookup table including DPD coefficients at a plurality of predefined temperatures other than the room temperature and (ii) determining the set of DPD coefficients for a given set of operating conditions using entries in the DPD lookup table.
Public/Granted literature
- US20140133531A1 DYNAMIC DIGITAL PREDISTORTION FOR A MICROWAVE RADIO SYSTEM Public/Granted day:2014-05-15
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