Full duplexing

Full duplexing

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This chapter discusses the FD transceiver and system solutions for 5G wireless networks. The focus is on FD transceiver solutions for compact form factor wireless devices, such as handheld ones and small access points/base stations (e.g., femto cell). We further concentrate on FD transmission solutions in small area radio communication systems. In Section 8.2, the challenges with FD transceiver implementation and FD transmission in small area radio communication systems are introduced. The FD transceiver architecture options and transceiver solutions for compact form factor devices are discussed, including examples on implemented hardware prototypes developed in the EU FP7 research project DUPLO [21] in Section 8.3. In Section 8.4, FD system aspects and potential performance gains of using FD transmission in small area radio systems are discussed. Finally, conclusions and proposals for further work are given in Section 8.5.

Chapter Contents:

  • 8.1 Introduction
  • 8.2 FD wireless transmission in 5G - scenarios and challenges
  • 8.2.1 Full-duplex deployment scenarios
  • 8.2.2 Full-duplex link budget and transceiver challenges
  • 8.2.3 MAC protocol design challenges
  • 8.3 Full-duplex transceiver
  • 8.3.1 General
  • 8.3.2 RF/analogue and antenna solutions for compact form factor devices
  • Self-interference cancelling front-end
  • Dual-polarised antenna and active analogue cancellation
  • Electrical balance duplexer
  • 8.3.3 Digital baseband solutions for full-duplex transceiver
  • 8.3.4 Prototype transceiver design and testing
  • 8.3.5 Multiple antenna full-duplex systems
  • 8.4 Full-duplex transmission in wireless networks
  • 8.4.1 General
  • 8.4.2 Full-duplex transmission in small area radio communication systems
  • A point-to-point link
  • Single standalone full-duplex small cell
  • Multiple full-duplex small cells
  • 8.5 Summary
  • References

Inspec keywords: multiplexing; radio transceivers; 5G mobile communication

Other keywords: full duplexing; FD transmission solutions; 5G wireless networks; small area radio communication systems; compact form factor wireless devices; FD transceiver architecture; small access points; base stations

Subjects: Mobile radio systems; Communication switching

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