SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR

doi:10.1016/S1005-8885(17)60228-0

中国邮电高校学报(英文) ›› 2017, Vol. 24 ›› Issue (5): 8-15.doi: 10.1016/S1005-8885(17)60228-0

SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR

Wang Jie, Hu Xiaoguang, Guan Enyi, Ding Zhushun, Yao Yidong, Li Wen

1. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China
2. Beijing Institute of Aerospace Control Devices, Beijing 100039, China

收稿日期:2017-04-18 修回日期:2017-09-29 出版日期:2017-10-30 发布日期:2017-12-18
通讯作者: Wang Jie, E-mail: wangjack2006@126.com E-mail:wangjack2006@126.com
作者简介:Wang Jie, E-mail: wangjack2006@126.com
基金资助:
This work was supported by the Smart In-Building Wireless System Using Flexible Digital Transmission Technology (SWIFT). We would like to extend our sincere gratitude to all members of these projects, especially Dr Li, the project leader of SWIFT in University of Cambridge.

SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR

Wang Jie, Hu Xiaoguang, Guan Enyi, Ding Zhushun, Yao Yidong, Li Wen

1. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China
2. Beijing Institute of Aerospace Control Devices, Beijing 100039, China

Received:2017-04-18 Revised:2017-09-29 Online:2017-10-30 Published:2017-12-18
Contact: Wang Jie, E-mail: wangjack2006@126.com E-mail:wangjack2006@126.com
About author:Wang Jie, E-mail: wangjack2006@126.com
Supported by:
This work was supported by the Smart In-Building Wireless System Using Flexible Digital Transmission Technology (SWIFT). We would like to extend our sincere gratitude to all members of these projects, especially Dr Li, the project leader of SWIFT in University of Cambridge.

摘要/Abstract

摘要： Aiming at making full use of analog to digital converter (ADC) digitalizing bit without oversaturation while keeping peak to average ratio (PAR) stable, this paper puts forward a new segmented full-digital (SFD)-automatic gain control (AGC) algorithm for a new long term evolution (LTE) communication system. Segmented digital gain control strategy is adopted to adjust the gain by only one step based on detected power status. Whether the gain needs to be adjusted is determined by current signal state derived from the change ranges of adjacent root mean square (RMS) of input signal, but not the difference between the power level of current signal and target signal. Software simulation and hardware implementing had been conducted with LTE frequency division dual (FDD) uplink signal and the results indicated that the proposed AGC algorithm can judge power status accurately and hence adjust the gain precisely in one step with a short delay, further, it can make full use of ADC digitalizing bit without oversaturation as well as keeping stable PAR. In addition, the mean error vector magnitude (EVM) was confined less than 1.6% to meet the 3rd generation partnership project (3GPP) standard well.

关键词: digitalizing bit, stable PAR, full-digital, segmented AGC, LTE FDD, EVM

Abstract: Aiming at making full use of analog to digital converter (ADC) digitalizing bit without oversaturation while keeping peak to average ratio (PAR) stable, this paper puts forward a new segmented full-digital (SFD)-automatic gain control (AGC) algorithm for a new long term evolution (LTE) communication system. Segmented digital gain control strategy is adopted to adjust the gain by only one step based on detected power status. Whether the gain needs to be adjusted is determined by current signal state derived from the change ranges of adjacent root mean square (RMS) of input signal, but not the difference between the power level of current signal and target signal. Software simulation and hardware implementing had been conducted with LTE frequency division dual (FDD) uplink signal and the results indicated that the proposed AGC algorithm can judge power status accurately and hence adjust the gain precisely in one step with a short delay, further, it can make full use of ADC digitalizing bit without oversaturation as well as keeping stable PAR. In addition, the mean error vector magnitude (EVM) was confined less than 1.6% to meet the 3rd generation partnership project (3GPP) standard well.

Key words: digitalizing bit, stable PAR, full-digital, segmented AGC, LTE FDD, EVM

中图分类号:

TN914

Wang Jie, Hu Xiaoguang, Guan Enyi, Ding Zhushun, Yao Yidong, Li Wen. SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR[J]. JOURNAL OF CHINA UNIVERSITIES OF POSTS AND TELECOM, 2017, 24(5): 8-15.

参考文献

References

1. Li T Y, Crisp M, Penty R, et al. Transmission of an RF signal over a wired communications link. WO 2013156770, 2013

2. McKinley M D, Remley K A, Myslinski M, et al. EVM calculation for broadband modulated signals. Proceedings of the 64th ARFTG Microwave Measurements Conference: Digital Communications Systems Metrics (ARFTG’04), Dec 2-3, 2004, Orlando, FL, USA. Piscataway, NJ, USA: IEEE, 2004: 45-52

3. Shen Y Y, Wang Y Q, Sheng D W, et al. Digital AGC based on coherent adjustment cycle for DSSS receiver. China Communications, 2015, 12(2): 95-106

4. Xiao Z Y, Jin D P, Ge N. GLRT for packet detection with practical analog AGC. IEEE Transactions on Vehicular Technology, 2014, 63(4): 1749-1758

5. Jiang Z B, Fan S L, Li Z, et al. Design of BDS receivers tracking loop based on the I & Q signals. Navigation and Control, 2015, 14(3): 78-85 (in Chinese)

6. Jiang K, Wang Y Q, Zhao C B. Design and simulation of an improved digital AGC system. Science and Technology Review, 2011, 29(33): 42-47 (in Chinese)

7. Xu J L, Li Y H, Wu W. Design and implementation of AGC algorithm in WLAN receiveer. Communication Technology, 2009, 42(9): 9-11 (in Chinese)

8. Zhao J, Zhang X Y, Yu Y L. The realization of a digital AGC for the burst-mode transmissions. Ship Science and Technology, 2006, 28(3): 53-55 (in Chinese)

9. Liu Y P, Liu X, Nan J, et al. Design and implementation of AGC in gas ultrasonic flowmeter. Proceedings of the 8th International Conference on Electronic Measurement and Instruments (ICEMI'07), Aug 16-18, 2007, Xi'an, China. Piscataway, NJ, USA: IEEE, 2007: 534-537

10. Shen Y Y, Wang Y Q, Sheng D W, et al. Digital AGC based on coherent adjustment cycle for DSSS receiver. China Communications, 2015, 12(2): 95-106

11. Tan B S, Hu W. Coordinated control of AGC and AVC by application of particle swarm opimization algorithm. Proceedings of the 9th IEEE Conference on Industrial Electronics and Applications (ICIEA’14), Jun 9-14, 2014, Hangzhou, China. Piscataway, NJ, USA: IEEE, 2014: 690-694

12. Wang J D. Design of a digital automatic gain controller used for communication receiveers. Avionics Technology, 2010, 34(1): 37-40 (in Chinese)

13. Zheng X, Zhang W Q, Zhou Z J. Design and implementation of an AGC algorithm. Telecommunication Engineering, 2006, 46(2): 164-167 (in Chinese)

14. Huang W, Zhou S J, Yang H. An automatic gain control method for LTE terminal receiver. CN 103841633A. 2015 (in Chinese)

15. Tang K, Xie Y N, Li Y. TD-LTE automatic gain control method and device. CN 103841633A. 2014 (in Chinese)

16. Zhan G S. Automatic gain control method and device for LTE system. CN 201110166143. 2011 (in Chinese)

17. Dong Z H, Cui W, Wu S L. Design and FPGA implementation of full-digital feed-forward AGC. Transactions of Beijing Institute of Technology, 2008, 28 (12): 1093-1095, 1100 (in Chinese)

18. Yu J Q, Tao X Y, Luo X. Design and implementation of a full-digital feed-forward AGC circuit. Popular Science and Technology, 2008 (11): 76-78 (in Chinese)

19. Tisserand E, Berville Y. Design and implementation of a new digital automatic gain control. Electronics Letters, 2016, 52(22): 1847-1849

20. Chen D P, Yan T T, Jin J, et al. A tri-mode compass/GPS/Galileo RF receiver with all-digital automatic gain control loop. Analogue Integrated Circuits and and Signal Processing, 2012, 70(1): 69-77

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SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR

SFD-AGC algorithm with ADC digitalizing bit fully utilized and stable PAR

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