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Equivalent interference source method for simulation of M3L-UE stray interference

A technology of spurious interference and interference sources, which is applied in the field of a method for simulating and measuring stray interference, can solve the problem of insufficient comprehensive interference analysis between systems, achieve the effect of shortening simulation time and improving simulation efficiency

Inactive Publication Date: 2012-03-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, according to the spurious requirements of the transmitting equipment of the two systems, the deterministic calculation method is used to calculate the minimum allowable coupling loss (MCL) required to achieve the necessary spurious interference suppression between the systems, so as to calculate the impact of spurious interference. But its analysis of interference between systems is not comprehensive enough, especially when it involves terminal interference

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  • Equivalent interference source method for simulation of M3L-UE stray interference
  • Equivalent interference source method for simulation of M3L-UE stray interference
  • Equivalent interference source method for simulation of M3L-UE stray interference

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Embodiment Construction

[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] ITST TD-SCDMA communication system and RTUT GSM900 communication system composed of M 3 Taking L-UE as an example, the simulation method of spurious interference is described.

[0029] Specific steps are as follows:

[0030] 1. According to step S1, such as figure 1 As shown, build M 3 The normal working environment and conditions of multiple wireless links of the L-UE include the following steps:

[0031] (1) Reasonably build the GSM900 communication system model, correct the GSM900 base station signal source, add the channel model and additive Gaussian white noise, and simulate the bit error rate BER of the GSM900 system under different SNRs;

[0032] (2) Reasonably build the TDSCDMA communication system model, correct the TDSCDAM uplink transmission signal source, and take the local uplink transmitter part.

[0033] 2. Acco...

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Abstract

The invention discloses an equivalent interference source method for simulation of a stray interference of multi-mode multi-link UE (M3L-UE). The method comprises the following steps that: a normal working environment and a normal working condition of a plurality of radio communication links of M3L-UE, so that the plurality of radio links of the M3L-UE are simultaneously in a normal radio transmission and receiving working state; power coupling attenuation between a interference transmission system terminal (ITST) and a receiving terminal under test (RTUT) is adjusted; an equivalent interference source is constructed; and a rollback value of a receiving sensitivity of the RTUT under the stray interference is measured. According to the invention, the method has a high simulation efficiency; and simulation time of mutual interference of radio frequencies is substantially reduced.

Description

technical field [0001] The invention relates to a method for simulating and measuring spurious interference using the equivalent interference source method under multi-mode coexistence and normal working conditions at the same time. Specifically, it relates to a method for simulating and measuring a multi-mode and multi-connection mobile terminal (M 3 L-UE, Multi-mode Multi-link UE) Interference Source Transmitting System (ITST, Interference Transmission System Terminal) spurious interference for one of the receiving systems under test (RTUT, Receiving Terminal Under Test) receiving sensitivity rollback method. Background technique [0002] The rapid development of cellular mobile network, wireless local area network and radio and television network communication technology has stimulated people's demand for using multiple services on mobile terminals, and the emergence of M 3 L-UE, such as 3GPP has defined Type A and Type B terminals as M in the new version of LTE 3 L-UE....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/391
Inventor 江勇高安明果敢彭宏利毛军发
Owner SHANGHAI JIAO TONG UNIV