Fast assessment method for overall unit OTA (Over The Air) performance of wireless terminal products

Abstract

The invention relates to a fast assessment method for the overall unit OTA (Over The Air) performance of wireless terminal products. The fast assessment method provided by the invention can greatly accelerate test assessments and analytic decisions for the products and shortens the period for research and development and the time for coming into the market. The assessment method provided by the invention comprises the following steps: (1) respectively designing a standard test module which can perform step-by-step adjustment respectively for radio frequency receiving sensitivity and radio frequency emission power of a standard connector or directly buying a ready-made test according to a communication mode; (2) adopting a corresponding test module added with different-length test cables and being subjected to calibration to be a standard test circuit for overall unit OTA test assessment, internal-and-external antenna assessment and structure ID (Interaction Design) assessment to perform an active test for an overall unit of a wireless terminal product with a signal communication mode; (3) performing the active test for the overall unit of a wireless terminal product with a mixed multi-communication mode; (4) and assessing the overall unit OTA performance under strong interference.

Description

1. Technical field: [0001] The invention relates to a method for quickly evaluating the OTA performance of a wireless terminal product. 2. Background technology: [0002] With the rapid development of personal communication technology, wireless terminal products have gradually become an indispensable tool in people's daily work and life. At present, in the research and development of wireless terminal products, its important indicators, the preliminary test and evaluation of the OTA performance of the whole machine, The usual assessment methods are: [0003] The first step is to design the appearance and structure ID of wireless terminal products according to customer needs. Antenna designers and antenna design manufacturers conduct pre-passive radio frequency simulation evaluation of internal and external antennas on the basis of existing structural modeling ID design, and give a preliminary Internal and external antenna circuit board clearance area requirements, circuit l...

AI Technical Summary

Problems solved by technology

[0007] In the preliminary test and evaluation of the OTA performance of this wireless terminal product, the design time and cycle of the internal and external antenna of the wireless terminal product are too long; Bad analysis and problem location cannot be quickly distinguished; the preliminary design evaluation of the internal and external antennas cannot actually reflect the final OTA test results of the whole machine; the instability of the hardware circuit of the whole machine, disconnection, connection failure, and unstable output power will seriously Affects the design evaluation of internal and external antennas; the antenna design of the whole machine terminal product that integrates multiple communication systems cannot quickly and effectively reflect the final multi-communication system mutual interference of the whole machine; the OTA performance of the whole machine of wireless terminal products can only be passed through the later stage The active test of the whole machine is fine-tuned, and the fine-tuning results will seriously affect other radiation indicators of the internal and external antenna itself; It is necessary to re-design the shape structure ID, so that the whole project will have huge risks of success or failure.

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