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System and method for testing radio frequency (RF) of long term evolution (LTE) base station

A technology of radio frequency test system and base station, which is applied in the field of radio frequency test system of LTE base station, can solve the problems such as the inability to meet the test requirements of LTE system, and achieve the effects of shortening test time, saving test cost, and saving manpower and material resources

Active Publication Date: 2011-04-13
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, copying the original test method and test system has been unable to meet the test requirements of the LTE system

Method used

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  • System and method for testing radio frequency (RF) of long term evolution (LTE) base station
  • System and method for testing radio frequency (RF) of long term evolution (LTE) base station
  • System and method for testing radio frequency (RF) of long term evolution (LTE) base station

Examples

Experimental program
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Effect test

Embodiment 1

[0025] see figure 1 , which is a schematic structural diagram of an embodiment of a radio frequency testing system for an LTE base station in the present application. Such as figure 1 As shown, the system includes: control PC101, internal LAN 102, auxiliary control unit 103a, remote radio unit RRU103b, radio frequency switch 103d, circulator 103e, spectrum analyzer 103f and signal generator 103g, wherein,

[0026] The control PC 101 is used to issue control commands to the spectrum analyzer 103f, the signal generator 103g, the radio frequency switch 103d, the RRU 103b and the auxiliary control unit 103a through the internal local area network 102;

[0027] Wherein, the internal LAN 102 is composed of multiple Ethernet switches. Signal generator 103f, spectrum analyzer 103g, control PC 101, radio frequency switch 103d, auxiliary control unit 103a and RRU 103b are connected to the internal LAN 102 through network cables, so that the control PC 101 sends control commands throug...

Embodiment 2

[0053] Usually, the power of the baseband signal output from the remote radio unit RRU is too large, which may burn out the spectrum analyzer. Similarly, the power of the radio frequency signal on the radio frequency antenna port selected by the radio frequency switch may also be very large. Therefore, the embodiment of the present application also provides a radio frequency test system of an LTE base station. The difference between the present embodiment and the first embodiment is that an electronically adjustable attenuator is added between the remote radio unit RRU and the radio frequency switch. see image 3 , which is a schematic structural diagram of another embodiment of a radio frequency test system for an LTE base station in the present application. The system includes: a control PC 101, an internal LAN 102, an auxiliary control unit 103a, a radio remote unit RRU103b, an electric control attenuator 103c, RF switch 103d, circulator 103e, spectrum analyzer 103f and si...

Embodiment 3

[0066] The embodiment of the present application also provides a radio frequency testing system of an LTE base station. The difference between this embodiment and the second embodiment is that a channel simulator is added between the remote radio unit RRU and the electronically adjustable attenuator. see Figure 4, which is a structural schematic diagram of another embodiment of a radio frequency test system for an LTE base station in the present application. The system includes: a control PC 101, an internal local area network 102, an auxiliary control unit 103a, a radio remote unit RRU103b, a channel simulator 103h, and an electrical Attenuator 103c, RF switch 103d, circulator 103e, spectrum analyzer 103f and signal generator 103g. This implementation introduces a channel simulator 103h for simulating various wireless channel propagation environment models and testing radio frequency performance indicators under the control of the control PC 101 . Since the control PC 101,...

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Abstract

The embodiment of the invention discloses a system and method for testing radio frequency (RF) of a long term evolution (LTE) base station. The system comprises a signal generator, a spectrum analyzer, a control personal computer (PC), an internal local area network (LAN), a circulator, an RF switch, a remote radio unit (RRU) and an auxiliary control unit. The signal generator, the spectrum analyzer, the control PC, the circulator, the RF switch, the RRU and the sub-control unit are connected to the internal LAN by network cables and used for interacting orders and data by the internal LAN. According to the embodiment of the application, automatic RF test demands of an LTE system can be met.

Description

technical field [0001] The present invention relates to the test technology in the communication field, in particular to a radio frequency test system and method for an LTE base station. Background technique [0002] The existing LTE (Long Term Evolution, long-term evolution) E-NodeB (Evolved NodeB, evolved Node B) mostly adopts a distributed structure, and the distributed base station refers to the BBU (Base Band Unit, base station processing unit) and RRU (Remote Radio Unit (radio remote unit) is a base station mode in which each is placed separately as an independent module and connected through an optical fiber. Among them, the RRU mainly implements functions such as a radio frequency transceiver and a power amplifier. In actual use, in order to ensure the stability of the system, it is necessary to conduct radio frequency tests on the RRU. [0003] From the content of the test, the radio frequency test mainly includes the transmitter radio frequency test and the recei...

Claims

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Application Information

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IPC IPC(8): H04W24/02
Inventor 王建新余建国朱宇霞
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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