Receiver desensitization in Envelope Tracking PA based FDD LTE transceivers

Author

Cidronali, Alessandro ; Maddio, Stefano ; Collodi, Giovanni ; Manes, Gianfranco

Author_Institution

Dept. of Inf. Eng., Univ. of Florence, Florence, Italy

fYear

2014

fDate

11-14 Feb. 2014

Firstpage

1

Lastpage

6

Abstract

This paper analyses the issue of receiver desensitization, due to the interaction with the transmitter in Envelope Tracking (ET) based FDD transceivers. The purpose of the study is to assess the possible trade-offs between the several system parameters, the implementation constraints and the system performance. The data reported in the paper consider an accurate model of the ET-PA obtained by a previous research, and a combination of data-flow and envelope simulations. The test signal adopted as case study is a legacy LTE10 for up-link user equipments. The paper shows that a best trade-off between the DAC ENOB in the envelope modulation path, and the shaping function discretization, consists respectively in 9 bit and 2^6 byte.

Keywords

Long Term Evolution; radio transceivers; radio transmitters; DAC ENOB; ET-PA; FDD LTE transceivers; TE; data flow; envelope modulation path; envelope tracking P A; envelope tracking based FDD transceivers; receiver desensitization; shaping function discretization; system parameters; system performance; transmitter; up-link user equipments; Decoding; Noise; Reactive power; Receivers; Transmitters; Envelope tracking; FDD systems; LTE systems; receiver desensitization;

fLanguage

English

Publisher

ieee

Conference_Titel

Multi-Conference on Systems, Signals & Devices (SSD), 2014 11th International

Conference_Location

Barcelona

Type

conf

DOI

10.1109/SSD.2014.6808876

Filename

6808876