Non Contiguous Tri-band Receiver for Carrier Aggregation RF System

The carrier aggregation technique will allow an increase of capacity of the 4 th Generation mobile communication networks (LTE-A: Long Term Evolution Advanced). The probability to find carriers that occupy a continuous spectrum in frequency is very low. The challenge is to demodulate an RF signal where the information is distributed on non-contiguous frequency bands. The technique presented in this paper concerns the mixing of n modulated carriers with n Continuous Wave (CW) signals by using a single three phase demodulator circuit. This technique allows reducing the conversion band of the Analog to Digital Converter (ADC) to 100 MHz. The principle is theoretically demonstrated for three non-contiguous carriers and validated by measurements results. The test was made for modulated carriers of 10 MHz or 15 MHz bandwidth by using the same QPSK modulation format or two different modulation formats (QPSK and 16-QAM). The demodulation performance is evaluated by measuring the Error Vector Magnitudes (EVM) of the transposed signals in baseband. This test shows that it is possible to demodulate a distributed non-contiguous multi-carriers RF signal in the band 2-3 GHz with a bit rate more than 300 Mbps.

[1]  Bernard Huyart,et al.  Architectural solution for second-order intermodulation intercept point improvement in direct down-c , 2010 .

[2]  蔡孟勳.  LTE-Advanced 網路之資源管理 , 2013 .

[3]  Hiroyasu Ishikawa,et al.  Implementation of concurrent dual-band receiver using IF undersampling , 2011, 2011 IEEE Radio and Wireless Symposium.

[4]  Mohamed Helaoui,et al.  Concurrent Dual-Band Six-Port Receiver for Multi-Standard and Software Defined Radio Applications , 2013, IEEE Transactions on Microwave Theory and Techniques.

[5]  Y. Amano,et al.  Concurrent dual-band receiver for spectrum aggregation system , 2009, 2009 IEEE Radio and Wireless Symposium.

[6]  B. Huyart,et al.  Demodulation of aggregated RF signal in three frequencies bands with a unique Rx chain , 2013, 2013 European Microwave Conference.

[7]  Satoshi Nagata,et al.  LTE-advanced: an operator perspective , 2012, IEEE Communications Magazine.

[8]  Sara Abou Chakra.  La boucle locale radio et la démodulation directe de signaux larges bandes à 26 GHz , 2004 .

[9]  Bernard Huyart,et al.  Performance of 2-3.6 GHz Five-Port/Three-Phase Demodulators with Baseband Analog I/Q Regeneration Circuit in Direct-Conversion Receivers , 2014, J. Electr. Comput. Eng..

[10]  Kazunori Akabane,et al.  A simultaneous receiving multi-band mixer with independent gain control , 2011, Asia-Pacific Microwave Conference 2011.

[11]  C. Azeredo-Leme,et al.  Clock Jitter Effects on Sampling: A Tutorial , 2011, IEEE Circuits and Systems Magazine.

[12]  Bernard Huyart,et al.  Demodulation of aggregated RF signals with a unique Rx chain , 2013, 2013 IEEE 11th International New Circuits and Systems Conference (NEWCAS).

[13]  B. Huyart,et al.  3-D Aspect in the Five-Port Technique for Zero-IF Receivers and a New Blind Calibration Method , 2008, IEEE Transactions on Microwave Theory and Techniques.

[14]  B. Huyart,et al.  Multiple RF Continuous-Wave generation using a single signal generator for carrier agrregation in LTE-advanced , 2014, 2014 44th European Microwave Conference.

[15]  Imad ud Din,et al.  Complex IF Harmonic Rejection Mixer for Non-Contiguous Dual Carrier Reception in 65 nm CMOS , 2013, IEEE J. Solid State Circuits.

[16]  Chester Sungchung Park,et al.  Carrier aggregation for LTE-advanced: design challenges of terminals , 2013, IEEE Communications Magazine.

[17]  Imad ud Din,et al.  Complex IF harmonic rejection mixer for non-contiguous dual carrier reception in 65 nm CMOS , 2012, 2012 Proceedings of the ESSCIRC (ESSCIRC).

[18]  J. Schoukens,et al.  Understanding the nonlinearitY of a mixer using multisine excitations , 2006, 2006 67th ARFTG Conference.

[19]  Detailed specifications of the satellite radio interfaces of International Mobile Telecommunications-Advanced (IMT-Advanced) , 2014 .

[20]  B. Huyart,et al.  Direct Baseband I-Q Regeneration Method for Five-Port Receivers Improving DC-Offset and Second-Order Intermodulation Distortion Rejection , 2012, IEEE Transactions on Microwave Theory and Techniques.

[21]  Je-Kuan Jau,et al.  CMOS RF T/R router switch ICs for LTE carrier aggregation transceivers , 2012, 2012 9th European Radar Conference.

[22]  Imad ud Din,et al.  A receiver for LTE Rel-11 and beyond supporting non-contiguous carrier aggregation , 2013, 2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers.