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System and method for inverting a radio channel for broadband signals

A technology of radio channel, broadband signal, applied in the field of measurement system

Active Publication Date: 2019-11-08
ROHDE & SCHWARZ GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the cited literature does not mention that, with increasing bandwidth, the isolation between transmit-receive antenna pairs decreases to values ​​below 20dB

Method used

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  • System and method for inverting a radio channel for broadband signals
  • System and method for inverting a radio channel for broadband signals
  • System and method for inverting a radio channel for broadband signals

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Embodiment Construction

[0032] exist figure 1 In , an embodiment of a radiation two-stage (RTS) test setup is shown. The Radiation Two-Stage (RTS) method measures the pattern of the device under test (DUT) and the throughput performance of multiple-input multiple-output (MIMO). The test setup comprises two measurement probes 17 , 18 , also referred to below as measurement antennas, probe antennas or measurement antenna probes. The test setup also comprises a user equipment (UE) 11 , also referred to as a device under test (DUT) 11 , which is equipped with two antennas 15 , 16 . The device under test 11 , the measuring probe 17 and the measuring probe 18 are located in the anechoic chamber 21 . Two probe antennas 17 , 18 with polarizations V and H are located together in the anechoic chamber 21 . Due to the propagation channel between the measurement probe 17 , 18 and the antenna 15 , 16 of the device under test 11 , the signal sent from the respective probe antenna 17 , 18 is received by the resp...

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Abstract

The invention relates to a system and method for inverting a radio channel for broadband signals. The system comprises a device under test (11) with at least two antennas (15, 16), and at least two measurement probes (17, 18).The measurement probes (17, 18) are configured to each emit signals shifted in phase and amplitude, and further the signals of the measurement probes (17, 18) each comprise arelative delay.

Description

technical field [0001] The invention relates to a measurement system suitable for inverting radio channels for broadband signals. The system includes a device under test having at least two antennas and at least two measurement probes. [0002] In order for the measurement system to measure wideband signals, each signal of the measurement probe includes a relative delay. Background technique [0003] To increase data throughput, multiple-input multiple-output (MIMO) technology has been developed over the past few years. MIMO is a method for multiplying the capacity of a radio link by exploiting multipath propagation using multiple transmit and receive antennas. MIMO has become an important element of wireless communication standards. Therefore, MIMO over-the-air (OTA) measurement for terminal performance evaluation has become more and more important. MIMO test methods can be divided into two categories: one is based on an anechoic chamber, and the other is based on a rev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/373H04B17/00
CPCH04B17/373H04B17/0087G01R29/0871H04B17/12H04B17/3912H04B17/104H04B17/16H04B17/364H04B17/391
Inventor 约翰内斯·科贝勒
Owner ROHDE & SCHWARZ GMBH & CO KG