DocumentCode :
3163452
Title :
EVM considerations for convergent multi-standard cellular base-station transmitters
Author :
Kowlgi, Sandeep ; Mattheijssen, Paul ; Berland, Corinne ; Ridgers, Tim
Author_Institution :
Inst. Telecom (ENST), Paris, France
fYear :
2011
fDate :
11-14 Sept. 2011
Firstpage :
1865
Lastpage :
1869
Abstract :
Modern cellular base stations are becoming increasingly multi-carrier and multi-standard/multi-mode for improved efficiency and manageability. Primary among prospective multi-mode base station deployments will be those that are reconfigurable but also capable of simultaneous transmission of several types of cellular signals. However, unified or convergent-transmitter design is challenging, particularly with the small specified tolerances for signal distortion. We present an analysis of the Error Vector Magnitude (EVM) specifications for GSM/EDGE, UMTS and LTE, based on simulated EVM sensitivity to various distortions, focusing on a convergent transmit chain for multi-standard, multi-carrier macro-cell base stations. These analyses illustrate a method of deriving preliminary radio transmitter performance (phase noise, IQ imbalances, noise floor etc.) requirements, alongside helping to expose bottlenecks and performance tradeoffs necessary to optimize power consumption. A preliminary distribution of distortion or performance among the blocks is presented, to achieve the less than 5% multi-mode EVM budget, for worst-case scenarios.
Keywords :
3G mobile communication; Long Term Evolution; cellular radio; radio transmitters; EVM considerations; GSM-EDGE; LTE; UMTS; cellular signals; convergent multistandard cellular base-station transmitters; convergent-transmitter design; error vector magnitude; multicarrier macrocell base stations; multimode base station deployments; power consumption; radio transmitter; Base stations; Distortion; GSM; Noise; OFDM; Transmitters; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2011 IEEE 22nd International Symposium on
Conference_Location :
Toronto, ON
ISSN :
pending
Print_ISBN :
978-1-4577-1346-0
Electronic_ISBN :
pending
Type :
conf
DOI :
10.1109/PIMRC.2011.6139832
Filename :
6139832
Link To Document :
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