Transceiver architecture for multiple antenna systems

An antenna unit and wireless device technology, applied in diversity/multi-antenna systems, radio transmission systems, transmission systems, etc., can solve the problems of high data rate processing, high complexity, high power consumption, etc., and achieve high directional gain and low Complexity, the effect of reducing complexity

Active Publication Date: 2016-07-27
MEDIATEK INC
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  • Abstract
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AI Technical Summary

Problems solved by technology

Requires multiple RF chains (NA antennas require NA RF chains), which leads to high complexity
[0007] Find a solution to the high data rate processing and high power consumption in digital beamforming, and the high overhead of switching beam switching times in analog or hybrid beamforming

Method used

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  • Transceiver architecture for multiple antenna systems
  • Transceiver architecture for multiple antenna systems
  • Transceiver architecture for multiple antenna systems

Examples

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Embodiment Construction

[0025] Hereinafter, some embodiments of the present invention will be described in detail, some of which are described with the drawings.

[0026] figure 1 It is a combined schematic diagram of the digital beamforming for beam training and the analog / hybrid beamforming for data transmission in the beamforming mmWave cellular network 100 according to a novel aspect. The beamforming mmWave mobile communication network 100 includes a base station BS101, a first user equipment UE102 and a second user equipment UE103. The mmWave cellular network uses narrow beams for directional communication and can support multi-gigabit data rates. Directional communication is achieved through digital (adaptive) and / or analog (switching) beamforming, in which multiple antenna units apply multiple sets of beamforming weights (phase shift values) to form multiple beam patterns. in figure 1 In the illustrated example, BS101 is configured with multiple cells directionally, and each cell is covered by...

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Abstract

A transceiver architecture with combined digital beamforming and analog/hybrid beamforming is proposed. Digital beamforming is used for beam training with reduced overhead (switching time). It is beneficial to estimate all UE's angle of arrival (AoA) at the same time. In addition, the pilot/training signals are transmitted in a narrow band to reduce complexity. Analog/hybrid beamforming is used for data transmission with high directive gain and low complexity. The value of beamforming weights (phase shifter values) in analog domain can be based on the estimation of AoA from beam training. By using digital beamforming for beam training, combined with analog/hybrid beamforming for data transmission, effective beamforming is achieved with reduced overhead, complexity, and cost.

Description

[0001] cross reference [0002] This application requires the priority of U.S. Provisional Application 62 / 080,626 filed on November 17, 2014 according to 35U.S.C.§119, with the title of “Transceiver Architecture for Multiple Antenna Systems”, and this application is taken as a reference. Technical field [0003] The present invention relates to wireless communication, and particularly relates to a transceiver architecture with integrated beamforming in a multi-antenna system. Background technique [0004] In the next-generation broadband cellular communication network, the increasing shortage of mobile carrier bandwidth has promoted the exploration of the underutilized millimeter wave (Millimeter Wave, mmWave) spectrum between 3G and 300 GHz. The available frequency spectrum of mmWave frequency band is two hundred times larger than that of traditional cellular system. The mmWave wireless network uses narrow beams for directional communication and can support multi-gigabit data rate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04
CPCH04B7/04H04B7/0619H04B7/0695
Inventor 陈儒雅詹景宏
Owner MEDIATEK INC
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