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Quick paging channel detection with signal to noise ratio dependent thresholds

A paging channel, signal-to-noise ratio technology, applied in the field of detection switch signaling, can solve the problems of high loss rate, changing detection performance, battery consumption, etc.

Active Publication Date: 2011-09-14
VIA TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even though it is possible to reduce the false alarm probability to a value lower than the design target with little sacrifice of loss detection probability at high SNR, existing methods cannot use different thresholds to change detection performance
[0008] If there is no effective detection mechanism, battery power will be consumed more and high loss rate is unavoidable, resulting in poor communication performance

Method used

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  • Quick paging channel detection with signal to noise ratio dependent thresholds
  • Quick paging channel detection with signal to noise ratio dependent thresholds
  • Quick paging channel detection with signal to noise ratio dependent thresholds

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Embodiment Construction

[0017]A detailed description of a method and system for determining the presence of an indicator transmitted on a quick paging channel in a wireless communication network will be provided below. The subject matter set forth herein is applicable to wireless communication systems that multiplex signals utilizing time division multiplexing (TDM), code division multiplexing (CDM), and frequency division multiplexing (FDM) techniques. For illustration, a CDMA2000 system is used as an example. In wireless communication systems like CDMA2000 systems, several paging indicators are implemented. Those of ordinary skill in the art may understand a paging indicator as a signal for detecting the presence of a paging signal, and broadly define it as including the following paging indicator examples, but not limited thereto. For example, a Quick Paging Channel paging indicator is designed for the Quick Paging Channel (QPCH). Another quick paging channel configuration change indicator is de...

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Abstract

A method and system is disclosed for detecting paging indicators using a multi-stage and multi-threshold detection mechanism so that a mobile terminal can be removed from an idle mode appropriately. After receiving a first paging indicator, it is determined whether a first indicator measurement corresponding to the first paging indicator is between a first and a second predetermined thresholds. After receiving a second paging indicator which may be a temporal diversity counterpart of the first paging indicator, a second indicator measurement derived based on both the first and second paging indicators is compared against a third predetermined threshold, wherein the mobile terminal is removed from the idle mode when both comparisons are appropriately conducted.

Description

technical field [0001] The present invention relates generally to wireless communication systems, and more particularly to methods and systems for detecting the presence of switch signaling in wireless communication networks. Background technique [0002] The Quick Paging Channel (QPCH) is an uncoded channel used in CDMA (Code Division Multiple Access) based telecommunication systems to convey switch signaling. This channel conveys various indicators like paging indicators, broadcast indicators, and configuration change indicators. The following discussion will use a specific indicator like a paging indicator as an example, however, it should be understood that anything that can be applied to a paging indicator can also be applied to other indicators transmitted by a QPCH. [0003] In a wireless communication network, when there are neither voice nor data calls, the mobile terminal remains in an idle state to save battery power. In the idle state, the mobile terminal perio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W76/04H04B17/00H04W24/08H04B1/707H04B17/336H04W68/00
Inventor 姜仁成杨鸿魁苏瑾
Owner VIA TECH INC