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Transmitter architecture for massive MIMO

A transmitter and receiver technology, applied in the direction of improving amplifiers to reduce nonlinear distortion, advanced technology, multi-frequency code system, etc., can solve the problems of complexity, complexity and power consumption of PA efficiency transmitters

Active Publication Date: 2022-05-13
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, having hundreds of CFR20, DPD 22 and TOR leads to significant complexity and power consumption
Therefore, the two main challenges of 5G massive MIMO are PA efficiency and transmitter complexity

Method used

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  • Transmitter architecture for massive MIMO
  • Transmitter architecture for massive MIMO
  • Transmitter architecture for massive MIMO

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Embodiment Construction

[0043] The embodiments set forth below represent information to enable one skilled in the art to practice the embodiments, and illustrate the best modes of practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications are within the scope of this disclosure and the appended claims.

[0044] Embodiments of a transmitter with an architecture of reduced power consumption and complexity are disclosed. Although the embodiments disclosed herein are particularly suited for massive multiple-input multiple-output (MIMO), the embodiments disclosed herein are not limited thereto. Typically, the transmitter utilizes an architecture in which one or more input signals are adjusted prior to performing one or more modulation op...

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Abstract

Embodiments of a transmitter with an architecture of reduced power consumption and complexity are disclosed. In some embodiments, a transmitter includes a modulator including an actuator, a modulation circuit, and an adapter. The actuator is operable to apply at least one adjustment to at least one modulator input signal to provide at least one adjusted modulator input signal. The modulation circuit is operable to perform a modulation operation on the at least one adjusted modulator input signal to provide a modulated signal, and the adapter is operable to adaptively configure the The at least one adjustment of , such that the peak-to-average ratio (PAR) of the modulated signal is reduced.

Description

technical field [0001] The present disclosure relates to a transmitter architecture for a wireless system, and in particular, to a transmitter architecture particularly suitable for, but not limited to, Massive Multiple-Input Multiple-Output (MIMO). Background technique [0002] Future fifth-generation (5G) wireless systems will require large antenna gains - achieved by having multiple antennas - in order to compensate for the very strong path loss at millimeter wave (mmWave) frequencies. There is even some discussion about massive multiple-input multiple-output (MIMO) (ie massive MIMO) transmitters, which will have hundreds of transmit antennas and thus hundreds of radios. [0003] To have an energy-efficient architecture, each power amplifier must support a peak-to-average ratio (PAR) significantly lower than their current value (typically about 7 decibels (dB) at baseband). There are two reasons for this, namely: (1) PAs are more efficient at low PAR; (2) it is not possi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F1/32H04L27/26H04B7/0413
CPCH04B7/0413H04L27/2614H04B7/0617Y02D30/70H04L27/2626H04L27/26265
Inventor P-A·拉波尔特B·费林
Owner TELEFON AB LM ERICSSON (PUBL)