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Signal processing method, base station and terminal under hybrid architecture of digital and analog domains

A hybrid architecture, digital and analog technology, applied in the field of wireless transmission, can solve problems such as high cost overhead algorithm processing complexity, and achieve the effect of signal transmission

Active Publication Date: 2021-03-16
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It is foreseeable that as the number of antennas continues to increase, if the signal processing of multiple antennas is still concentrated in the digital domain, it will inevitably bring a very large cost overhead and algorithm processing complexity, especially in high-frequency communication systems, such as millimeter wave communications

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  • Signal processing method, base station and terminal under hybrid architecture of digital and analog domains
  • Signal processing method, base station and terminal under hybrid architecture of digital and analog domains
  • Signal processing method, base station and terminal under hybrid architecture of digital and analog domains

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Embodiment Construction

[0057] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0058] Multi-antenna technology has been fully applied in the current 4G system. However, regardless of the transmission mode, the current multi-antenna processing is still performed in the digital domain. With the continuous increase in the number of antennas, if the multi-antenna signal processing is still concentrated in the digital domain, it is bound to bring very serious problems. Large cost overhead and algorithm processing complexity. To this end, an embodiment of the present invention proposes a signal processing method under a digital-analog hybrid architecture....

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Abstract

The invention discloses a signal processing method under digital-analog-domain hybrid architecture, a base station, and a terminal. The method comprises: according to high-level configuration, system information and control information are sent to a terminal; digital-domain wave beam indication feedback information and analog-domain wave beam indication feedback information that are sent by the terminal are received; a downlink reference signal is sent to the terminal and channel information sent by the terminal is received; according to the channel information, scheduling and pairing processing is carried out on the terminal and data are sent to the terminal; and on the basis of confirmation information or non-confirmation information sent by the terminal, whether hybrid automatic repeat request (HARQ) processing is carried out is determined.

Description

technical field [0001] The present invention relates to wireless transmission technology, and in particular to a signal processing method, a base station and a terminal under a mixed digital and analog domain architecture. Background technique [0002] In order to meet the needs of business growth and service quality, the 5G mobile communication network for IMT-2020 needs to achieve a 1000-fold increase in network capacity, while reducing energy consumption of base stations and improving operational efficiency. Building a green wireless access network is a key direction for future networks. Based on random matrix theory, it can be proved that when the base station has far more antennas than terminals, the channels between each terminal will tend to be orthogonal, and multiple users can transmit without interference on the same time-frequency resources. At the same time, large-scale antennas also bring huge array gain, which greatly reduces system energy consumption. Massiv...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0456H04B7/06
CPCH04B7/0486H04B7/0626H04B7/0632H04B7/0639
Inventor 王森韩双锋崔春风易芝玲
Owner CHINA MOBILE COMM LTD RES INST