WWAN test method and test system thereof

Abstract

The embodiment of the invention, which belongs to the communication field, provides a wireless wide area network (WWAN) test method and a test system thereof. The method and the system are suitable for the product research and development phase; and a quantitative data relation between a noise floor system (NFS) test result and an over the air (OTA) test result can be obtained. The WWAN test method comprises the following steps that: an NFS test method is utilized to obtain a noise power value received by a to-be-tested terminal antenna and the obtained noise power value is expressed as D (NFS); a power attenuation value of a path between a WWAN module of the terminal and the antenna is obtained by measurement and is expressed as D-sense; an efficiency value of the terminal antenna is obtained and is expressed as AE; and a TIS value of a measurement result of the OTA is expressed as the following formula: TTIS= D (NFS) + D-sense - AE. According to the embodiment of the invention, the method and the system can be applied to an NFS test.

Description

technical field [0001] The invention relates to the communication field, in particular to a WWAN testing method and testing system. Background technique [0002] In recent years, with the increasingly powerful wireless functions of notebook computers, especially the popularization of 3G Internet applications, the issue of the impact of various components inside notebook computers on the wireless field has been raised. A typical example is WWAN (Wireless Wide Area Network, wireless wide area network) wireless test. [0003] Generally, the final evaluation method and method of wireless function application is OTA (Over The Air, in a wireless way) test, such as figure 1 As shown, the wireless communication function of the product is tested by the actual simulated communication method. However, the conditions of this final solution are complicated, the cost is high, and the test time is very long, and a large electromagnetic shielding room is required during the test, which is...

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Problems solved by technology

[0005] However, based on the current theoretical understanding and understanding, there is only a qualitative relationship between the two tests. For example, if there is a large noise in a certain frequency band in the NFS test results, the frequency band obtained in the OTA test There will also be noise noise in the correspondence, but there has been no way to quantitatively find the connection between the data between the two, so that it is impossible to determine the data difference between the two, and errors in data judgment are prone to occur

For example, in the product development process, the NFS test results are generally used as the standard. If the difference between the NFS test results and the final OTA test results cannot be known, problems may occur in the final product inspection OTA test.

However, if the OTA test is directly used in the R&D process, it will face problems such as high cost, large floor space, and slow test speed, which are not suitable for use in the R&D process.

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