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Method for monitoring in real time and improving twisted-pair DAS system data transmission reliability

A technology of real-time monitoring and system data, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as being susceptible to external interference and poor anti-electromagnetic interference.

Inactive Publication Date: 2018-08-03
SUNWAVE COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Twisted pair wires are less resistant to electromagnetic interference than optical fibers and are susceptible to external interference

Method used

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  • Method for monitoring in real time and improving twisted-pair DAS system data transmission reliability
  • Method for monitoring in real time and improving twisted-pair DAS system data transmission reliability
  • Method for monitoring in real time and improving twisted-pair DAS system data transmission reliability

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0017] like figure 1 As shown in , the schematic diagram of the framework of the sending end and the receiving end in the DAS device. This embodiment adopts the CPRI (Common Public Radio Interface) protocol, and twisted pair wires are used as the transmission medium for the interconnection of each unit, so a PHY chip is required for transmission. Built in the FPGA of the sender as figure 2 The CPRI frame containing the CRC check is shown, and sent to the PHY chip, and sent to the receiving end through the CAT5 / CAT5E / CAT6 / CAT6A twisted pair. The PHY chip at the receiving end receives the data and sends it to the FPGA at the receiving end, and the FPGA recovers the CPRI frame and checks the IQ data of the CPRI frame. When the verification is incorrect, the error register is accumulated in the FPGA. There are two error registers. The first is used to judge...

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Abstract

The invention provides a method for monitoring in real time and improving twisted-pair DAS system data transmission reliability. A DAS system is an access unit (AU), an extension unit (EU) and a far-end coverage unit (RU); a CPRI frame or re-encapsulated CPRI frame are adopted to perform data transmission among various units, a sending end checks the transmitted data, and sends a check value to areceiving end; the receiving end rechecks the received data and check value to realize the real-time monitoring and statistics on the data transmission reliability. For the stable and reliable work ofthe system, by adopting the ways for repeatedly reading an error register, continuously exceeding threshold accumulation or repeatedly re-adapting a PHY, the equipment attempts to recover the normalwork, and produces a series of measures of warning and notifying an administrator after the attempting is failed.

Description

technical field [0001] The invention relates to the field of indoor distributed antenna systems (DAS), in particular to a method for real-time monitoring and improving the data transmission reliability of the twisted-pair DAS system. Background technique [0002] With the rapid development of the mobile Internet, the indoor distribution system needs to be replaced and upgraded to provide better signal coverage. In order to reduce the cost and difficulty of engineering construction, it is hoped that the original indoor distribution equipment can be updated and upgraded, and the previous equipment should be replaced as little as possible. Using a large number of existing CAT6 / CAT5 cables in the building to realize data transmission and complete signal coverage has become the best choice. [0003] Previous DAS systems used optical fiber for data transmission, which has the characteristics of good anti-electromagnetic interference, strong confidentiality, fast speed, and strong...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L12/24
CPCH04L1/004H04L1/0045H04L41/06
Inventor 罗宝填陈青松
Owner SUNWAVE COMM