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Devices and methods for wireless system acquisition

A device and mobile device technology, applied in wireless communication, access restrictions, electrical components, etc., can solve problems such as GSM network operation interference

Inactive Publication Date: 2014-02-19
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many other wireless communication systems such as cdma2000, WCDMA, EV-DO, and WiMAX are deployed in the same frequency spectrum as GSM networks and often cause interference in the operation of GSM networks
For example, if other networks are deployed in the same frequency band, the power of these networks may be higher than that of the GSM network

Method used

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  • Devices and methods for wireless system acquisition
  • Devices and methods for wireless system acquisition
  • Devices and methods for wireless system acquisition

Examples

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Embodiment Construction

[0016] Methods for wireless system acquisition in a multi-system wireless communication environment may be used in conjunction with various radio access technologies (RATs), such as TDMA, CDMA, FDMA, OFDMA, and SC-FDMA. The terms "system" and "network" are often used interchangeably. The terms "radio access technology", "RAT", "radio technology" and "air interface" are also often used interchangeably. TDMA systems include GSM or EDGE. The CDMA system includes Universal Terrestrial Radio Access (UTRA), cdma2000 and other wireless technologies. UTRA includes WCDMA and other variants of CDMA. cdma2000 includes IS-2000, IS-95 and IS-856 standards. OFDMA systems include Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.16, IEEE 802.20, Flash-OFDM.RTM and so on. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). Long Term Evolution (LTE) is a future version of UMTS that uses E-UTRA. Standards such as GSM, UTRA, E-UTRA, UMTS and LTE a...

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Abstract

Disclosed are devices, methods and computer program products for radio access network (RAN) signal acquisition. In one aspect, a mobile device scans a radio frequency spectrum for RAN signals and detects signals corresponding to a plurality of channels of a first network type having a first channel bandwidth. The mobile device then determines a power level of the detected signal on each of the plurality of channels and discards signals having substantially equal power within a first frequency range to define a remaining set of signals. The first frequency range corresponds to a second channel bandwidth of a second network type and the second channel bandwidth is greater than the first channel bandwidth. The mobile device then ranks the remaining signals based on the determined power level and selects one of the remaining signals for acquisition based on the ranking.

Description

[0001] This application is a divisional application of a Chinese invention patent application with a filing date of November 17, 2010, an application number of 201080051459.4, and an invention title of "equipment and method for wireless system capture". technical field [0002] The present application relates generally to the field of wireless communications, and in particular, to devices and methods for wireless system acquisition. Background technique [0003] Wireless communication systems, also known as Radio Access Networks (RAN), provide mobile device users with access to packet-switched networks such as the Internet and to a variety of communication services and content such as voice, data, multimedia, web browsing, and more. wireless access. These wireless communication systems can be multiple-access systems that can support communication with multiple mobile devices by sharing available system resources (eg, bandwidth and transmit power). Examples of such multiple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16
CPCH04W48/18H04W48/16
Inventor M·纳兰J·R·库克
Owner QUALCOMM INC