On the Feasibility of Dual Mode LTE-FDD/TDD and Dual Mode WiMAX-TDD/LTE-TDD

듀얼모드 LTE-FDD/TDD 및 듀얼모드 WiMAX-TDD/LTE-TDD에 대한 실현가능성 연구

  • Received : 2010.08.20
  • Accepted : 2010.10.15
  • Published : 2010.10.31

Abstract

While Long Term Evolution-Frequency Division Duplexing (LTE-FDD) is regarded as one of the strong candidates for "4G" wireless broadband access in FDD field, LTE-Time Division Duplexing (TDD) is emerging as one possible migration path for WiMAX-TDD in some cases as well as the migration path for Time Division-Synchronous Code Division Multiple Access (TD-SCDMA). In this paper, we analyze the feasibility of dual mode with LTE-TDD in two combinations: dual mode LTE-FDD/TDD and dual mode Worldwide Interoperability for Microwave Access (WiMAX)-TDD/LTE-TDD. Thanks to the commonality in numerology, terminology, and frame structure between LTE-FDD and LTE-TDD, dual mode LTE-FDD/TDD looks feasible in a cost-effective manner. Thanks to the commonality in scheduling algorithm, control mechanism, and supported spectrum bands, it is shown that dual mode WiMAX-TDD/LTE-TDD looks feasible as well. It should be also noted that the commonality in numerology and frame structure is critical for building a chip while the commonality in algorithms and control mechanisms is critical to make it work.

Keywords

Acknowledgement

Supported by : 정보통신산업진흥원

References

  1. ITU-R Working Party 5D (WP 5D) - IMT systems: http://www.itu.int/ITU-R/index.asp?category=study-groups&rlink=rwp5d&lang=en
  2. 3GPP TS 25.211, Physical channels and mapping of transport channels onto physical channels (FDD), V9.1.0, Dec. 2009
  3. 3GPP TS 25.221, Physical channels and mapping of transport channels onto physical channels (TDD), V9.2.1, July 2010
  4. 3GPP TS 36.211, Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation, V9.1.0, March 2010
  5. 3GPP TS 36.101, Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception, V9.4.0, June 2010
  6. IEEE Std 802.16e-2005, IEEE standard for local and metropolitan area networks, Part 16: Air interface for fixed and mobile broadband wireless access systems, Feb. 2006
  7. IEEE Std 802.16-2009, IEEE standard for local and metropolitan area networks, Part 16: Air interface for broadband wireless access systems, May 2009
  8. IEEE P802.16m/D7, Draft amendment to IEEE standard for local and metropolitan area networks, Part 16: Air interface for broadband wireless access systems, July 2010
  9. WiMAX forum, WiMAX forumTM mobile system profile: Release 1 - IMT-2000 edition, July 2009
  10. WiMAX forum, WiMAX forumTM mobile certification profile, April 2006
  11. WiMAX forum, BOD Approved Mobile Certification Profiles as of February 2009: http://members.wimaxforum.org/kws/certification
  12. Hyung G. Myung, Junsung Lim, and David J. Goodman, "Single carrier FDMA for uplink wireless transmission," IEEE Vehicular Technol. Magazine, Sep. 2006.
  13. David Falconer, et. al., "Frequency domain equalization for single-carrier broadband wireless systems," IEEE Commun. Magazine, April 2002.
  14. Chen-Hung Lin, Chun-Yu Chen, and An-Yeu Wu, "Area-efficient scalable MAP processor design for high-throughput multistandard convolutional Turbo decoding," IEEE Trans. On VLSI Systems, Oct. 2009
  15. Ji-Hoon Kim and In-Cheol Park, "A unified parallel radix-4 Turbo decoder for mobile WiMAX and 3GPP-LTE," in Proceeding of IEEE Custom Integrated Circuits Conference (CICC) 2009, 2009.
  16. Di Wu, et. al., "VLSI implementation of a multi-standard MIMO symbol detector for 3GPP LTE and WiMAX," in Proceeding of IEEE Wireless Telecommunications Symposium (WTS) 2010, 2010.
  17. YH Chow, et. al., "A 29dBm linear power amplifier module for IEEE 802.16e (Wimax) and LTE applications using E-mode pHEMT technology," in Proceeding of IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) 2009, 2009.
  18. V. Krishnamurthy, et. al., "SiGe power amplifier ICs for 4G (WIMAX and LTE) mobile and nomadic applications," in Proceeding of IEEE Radio-Frequency Integrated Circuits Symposium (RFIC) 2010, 2010.
  19. Youn Suk Jeong, et. al., "Internal mobile antenna for LTE/GSM850/GSM900/PCS1900/WiMAX/WL AN," in Proceeding of IEEE Radio and Wireless Symposium (RWS) 2010, 2010.
  20. S. Rodriguez, A. Rusu, and M. Ismail, "WiMAX/LTE receiver front-end in 90nm CMOS," in Proceeding of IEEE ISCAS 2009, 2009.
  21. Angeliki Leonida, Orhan Hazar Mutgan, and Ana Rusu, "A digitally calibrated CT quadrature bandpass $\Sigma\Delta$ ADC for Wimax/LTE," in Proceeding of IEEE ISSCS 2009, 2009.
  22. K.S. Keshava Murthy, "NextGen wireless access gateway: Analysis of combining WiMAX and LTE gateway functions," in Proceeding of IEEE IMSAA 2008, 2008