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Simulative Ir interface protocol conformance testing device and interoperability testing method

A simulation test and interface technology, applied in wireless communication, electrical components, etc., can solve problems such as incompleteness and inadequacy, and achieve the effect of interoperability and interconnection testing

Inactive Publication Date: 2014-09-10
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is insufficient and incomplete to verify the interconnection and interoperability of BBU and RRU equipment in chain and ring networking through different manufacturers' BBU and RRU equipment interconnection and interoperability tests.

Method used

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  • Simulative Ir interface protocol conformance testing device and interoperability testing method
  • Simulative Ir interface protocol conformance testing device and interoperability testing method
  • Simulative Ir interface protocol conformance testing device and interoperability testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] Embodiment 1: CM data test.

[0124] Figure 8 Shown is the CM data testing process provided by Embodiment 1, including the following steps:

[0125] Step 801: After receiving the CM message, the BBU simulates the carrier board to judge the source of the data. If it is a downlink CM message, go to step 802; otherwise, go to step 806 if it is an uplink CM message.

[0126] The downlink CM data comes from the Ethernet switching carrier board for link status control and management; the uplink CM data comes from the network connection with the RRU analog carrier board and is used to report link status information to the CPU carrier board.

[0127] Step 802: The BBU analog carrier board judges the purpose of the received CM message, determines that the destination is the RRU analog carrier board 1, and sends the CM message to the RRU analog carrier board 1 in the form of an Ethernet frame through the Ethernet connection.

[0128] Step 803: The RRU analog carrier board 1 ac...

Embodiment 2

[0132] Embodiment 2: IQ data downlink test

[0133] When using this device for downlink testing of IQ data, the two RRU analog carrier boards can respectively monitor one channel of IQ data in the BBU analog carrier board, such as Figure 9 As shown, the IQ data downlink test flow provided by Embodiment 2 of the present invention is as follows:

[0134] Step 901: Under the normal startup condition of the device, the CPU carrier board stores the IQ data for testing in the BBU simulation carrier board, the RRU simulation carrier board 1, and the RRU simulation carrier board 2 respectively through the Ethernet switching carrier board.

[0135] Step 902: The BBU analog carrier board divides the IQ data into two channels through the IQ data generation and comparison module, and sends the two channels of IQ data to the first Ir interface deframing and framing main module and the second Ir interface deframing and framing module main module.

[0136] Step 903: The IQ data is package...

Embodiment 3

[0145] Embodiment 3: IQ data uplink test

[0146] When using this device for uplink testing of IQ data, the BBU analog carrier board can monitor the IQ data in the RRU analog carrier board 1 and RRU analog carrier board 2, such as Figure 10As shown, the IQ data uplink test process provided by Embodiment 3 is as follows:

[0147] Step 1001: Under the normal startup condition of the device, the CPU carrier board stores the IQ data for testing in the BBU analog carrier board and the RRU analog carrier board respectively through the Ethernet switching carrier board;

[0148] Step 1002: The RRU analog carrier board 2 sends the stored IQ data to the Ir interface deframing and framing auxiliary module;

[0149] Step 1003: The Ir interface deframing and framing auxiliary module of the RRU analog carrier board 2 packs the IQ data and sends it to the Ir interface deframing and framing main module of the RRU analog carrier board 1 through the Ir interface;

[0150] Step 1004: The Ir i...

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Abstract

The invention provides a simulative Ir interface protocol conformance testing device. The testing device comprises simulation carrier boards operating under a BBU (bandwidth based unit) mode and a RRU (remote radio unit) mode, and can conveniently establish a variety of topological connections between RRU devices and BBU devices of different manufacturers, such as chain connection and ring connection, so that the interoperability testing of the Ir interface protocol between the devices of different manufacturers can be carried out. The invention also provides an Ir interface interoperability testing method, which includes control and management (CM) data testing, uplink and downlink data testing and fault location testing. The scheme of the invention can conveniently establish a variety of topological connections between RRU devices and BBU devices of different manufacturers, such as chain connection and ring connection, so that the interoperability testing of the Ir interface protocol between the devices of different manufacturers can be carried out.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a distributed base station, in particular to an Ir interface protocol consistency simulation test device and an interconnection test method. Background technique [0002] With the continuous development of communication technology, base station products are becoming more and more abundant. From the perspective of overall development, distributed base stations undoubtedly represent the basic trend of "next-generation base stations". The core concept of the distributed base station structure is to separate the baseband unit (BBU, Bandwidth Based Unit) of the traditional macro base station from the remote radio unit (RRU, Remote Radio Unit), and the interface between the two is called the Ir interface (Interface between the RRU and the BBU). The Ir interface supports network topologies such as single point connection, star connection, chain connection and ring connecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/06
Inventor 张洪光袁东明刘元安吴帆唐碧华刘芳姜冰莹张国强王艳秋
Owner BEIJING UNIV OF POSTS & TELECOMM
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