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Mobile forward transmission device and method based on Walsh code channel aggregation

A channel aggregation and pre-mobile technology, which is applied in the field of optical and wireless converged access networks, can solve the problems of low spectrum efficiency and complexity of signal transmission, and achieve the effect of solving low spectrum efficiency problems, low complexity, and reducing complexity

Active Publication Date: 2017-05-31
WUHAN POST & TELECOMM RES INST CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of spectral efficiency and low complexity of signal transmission in mobile fronthaul, and provide a mobile fronthaul device and method based on Walsh code channel aggregation, which can significantly reduce the complexity of calculation and improve spectrum efficiency

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  • Mobile forward transmission device and method based on Walsh code channel aggregation
  • Mobile forward transmission device and method based on Walsh code channel aggregation
  • Mobile forward transmission device and method based on Walsh code channel aggregation

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] see figure 1 As shown, the embodiment of the present invention provides a mobile fronthaul device based on Walsh code channel aggregation, which is applied to a mobile fronthaul link in a C-RAN (Centralized Radio Access Network). The mobile fronthaul device includes a transmitting end, an optical fiber link The transmission end includes a centralized BBU (Building Baseband Unit, baseband processing unit) pool, DAC (Digital-Analog Converter, digital-to-analog converter), electro-optical conversion module, and the centralized BBU pool includes BBU, channel aggregation module, Add a training sequence module, the receiving end includes a photoelectric conversion module, ADC (Analog-Digital Converter, analog-to-digital converter), frame synchronization module, channel estimation module, channel de-aggregation module, several RRH (Re...

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Abstract

The invention discloses a mobile forward transmission device and method based on Walsh code channel aggregation, and relates to the field of optical and wireless fusion access networks. The mobile forward transmission device comprises a transmitting terminal, an optical fiber link and a receiving terminal, the transmitting terminal comprises a centralized BBU pool, a DAC and an electro-optic conversion module, the centralized BBU pool comprises a BBU, a channel aggregation model and a training sequence adding module, the receiving terminal comprises a photovoltaic conversion module, an analog-to-digital converter ADC, a frame synchronization module, a channel estimation module, a channel de-aggregation module, a plurality of remote radio frequency heads RRH and an antenna. The mobile forward transmission device disclosed by the invention can greatly reduce the computational complexity and improve the spectral efficiency.

Description

technical field [0001] The invention relates to the field of optical and wireless fusion access networks, in particular to a mobile fronthaul device and method based on Walsh code channel aggregation. Background technique [0002] C-RAN (Centralized Ratio Access Network) is a green wireless network based on centralized processing (Centralized Processing), collaborative radio (Collaborative Radio) and real-time cloud computing architecture (Real-time Cloud Infrastructure) The essence of the access network architecture (Clean system) is to achieve low cost, high bandwidth and Operational flexibility. [0003] In C-RAN, the part connected by an optical fiber link between BBU (Building Baseband Unit, baseband processing unit) and RRH (Remote Radio Head, remote radio head) is called mobile fronthaul. [0004] The existing mobile fronthaul adopts the digital radio-over-fiber technology (D-RoF) based on CPRI (Common Public Radio Interface, Common Public Radio Interface) digital s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B10/25H04B10/2575H04L5/00H04L25/02H04L7/00
CPCH04B1/0028H04B10/25H04B10/2575H04L5/0001H04L7/0075H04L25/0202
Inventor 李海波杨奇余少华
Owner WUHAN POST & TELECOMM RES INST CO LTD
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