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System for determining total isotropic sensitivity(TIS) and related methods

A total omnidirectional sensitivity and sensitivity technology, applied in the field of communication systems, can solve problems such as long test time, changing coverage areas, and losing base station signals

Inactive Publication Date: 2014-08-20
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Poor TIS can result in poor quality voice signals and can also alter coverage areas
Compared to the TPR test method, the current TIS test method suffers from the problems of lost base station signal (i.e., call termination), relatively large measurement uncertainties, and relatively long test times

Method used

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  • System for determining total isotropic sensitivity(TIS) and related methods
  • System for determining total isotropic sensitivity(TIS) and related methods
  • System for determining total isotropic sensitivity(TIS) and related methods

Examples

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Embodiment Construction

[0021] The invention is described with reference to the accompanying drawings, in which preferred embodiments are shown. However, many different embodiments may be utilized, so the description should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Throughout, like numbers refer to like elements, and primes and multiple primes are used to indicate like elements in alternative embodiments.

[0022] Generally, the present invention relates to a test method for determining the Total Isotropic Sensitivity (TIS) of a mobile wireless communication device including a radio frequency (RF) receiver and an antenna coupled thereto. The method may include measuring the sensitivity of the RF receiver, measuring a three-dimensional (3D) gain pattern of the antenna independently of measuring the sensitivity of the RF receiver, and determining the mobile wireless communication device...

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PUM

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Abstract

A test method for determining total isotropic sensitivity (TIS) of a mobile wireless communications device including a radio frequency (RF) receiver and an antenna coupled thereto may include measuring a sensitivity of the RF receiver, and measuring a three-dimensional (3D) gain pattern of the antenna independent of measuring the sensitivity of the RF receiver. The method may further include determining the TIS of the mobile wireless communications device based upon the sensitivity of the RF receiver and the 3D gain pattern of the antenna.

Description

technical field [0001] The present invention relates to the field of communication systems, and more particularly to performance testing and related methods in mobile wireless communication systems, such as cellular communication systems. Background technique [0002] Over the past decade, digital wireless (ie, cellular) devices have become very ubiquitous to consumers. As a result, in order to maintain high levels of consumer satisfaction, wireless carriers, manufacturers, and certification bodies have taken care to establish higher standards for the verification and certification process of cellular devices. [0003] To meet the needs of an increasingly diverse consumer market, operators offer a variety of wireless devices, such as cellular phones, personal digital assistants (PDAs), and smart phones, from multiple manufacturers. All of these given device types can work simultaneously on the same operator network. [0004] Wireless operators invest heavily in RF licenses...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/20H04B17/00H04W24/08H04B7/005H04B1/06H04W88/02
CPCH04B17/309H04B17/008H04B17/29H04B17/0042H04B1/62H04L1/20H04L13/18H04L25/03
Inventor 齐亦红佩里·亚尔莫什泽韦茨基迈克尔·舍滕恩
Owner BLACKBERRY LTD
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