System and method for determining receiver sensitivity

A receiver sensitivity, receiver technology, applied in the field of communication systems, can solve problems such as a lot of time

Inactive Publication Date: 2007-08-15
RES IN MOTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to scan every channel of a GAM mobile phone, phones u

Method used

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  • System and method for determining receiver sensitivity
  • System and method for determining receiver sensitivity
  • System and method for determining receiver sensitivity

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Embodiment Construction

[0016] 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.

[0017] In general, a test method is disclosed herein for determining conducted radio frequency (RF) receiver sensitivity using an RF source coupled to an RF receiver through an RF cable, based on the A plurality of channels extending over at least one frequency band are defined at a traffic channel (TCH) power level at a desired bit error rate (BER). The test method may include determining a BER-TCH power level function for the initial channel, determining an estimated TCH power l...

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Abstract

A test method for determining conducted radio frequency (RF) receiver sensitivity using an RF source coupled to an RF receiver by an RF cable may include determining a bit error rate (BER) versus traffic channel (TCH) power level function for an initial channel, determining an estimated TCH power level for a subsequent channel based upon the function and the desired BER, and measuring a BER of the subsequent channel based upon the estimated TCH power level. The measured BER may be compared to the desired BER, and a difference therebetween is used along with the function to determine a next estimated TCH power level. Measuring and comparing may be repeated if the difference may be greater than a threshold to thereby determine a TCH power level in the subsequent channel corresponding to the desired BER.

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] In cellular communications equipment, radio sensitivity is the fundamental number that describes the performance of a radio receiver. Conducted (ie, through RF cables) and radiated (ie, through wireless communication links) radio sensitivity measurements are frequently performed during radio design, certification, and verification. These measurements were performed by reducing the base station power transmit level until the receiver's residual bit error rate (RBER) reached the desired level (specifically 2.44%). [0003] For example, for Global System for Mobile Communications (GSM) mobile devices, there are multiple communication bands, each ranging from at least one hundred channels to nearly four hundred ch...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B1/06
CPCH04B17/309H04B17/008H04B17/29H04B17/0082H04B17/0042H04B1/62H04B1/38
Inventor 齐亦红佩里·亚尔莫什泽韦茨基迈克尔·舍滕恩
Owner RES IN MOTION LTD
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