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Scanning channels while a device is out of service

A service time and channel technology, applied in the field of channel scanning, can solve problems such as loss of income

Inactive Publication Date: 2012-02-08
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the home network loses revenue because certain features or calls on the home network are not utilized
Therefore, the static list does not take into account roaming networks or other parameters, but remains static, which causes the device to continuously scan for unavailable channels

Method used

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  • Scanning channels while a device is out of service
  • Scanning channels while a device is out of service
  • Scanning channels while a device is out of service

Examples

Experimental program
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Embodiment Construction

[0026] Various aspects will now be described with reference to the figures. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that aspects may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing these aspects.

[0027] In communication networks, scanning for channels that are not currently available (sometimes referred to as "dead channels") consumes power and increases the time to acquire a valid (eg, currently available) network. If a preferred network (e.g., a home network) and one or more less preferred networks (e.g., a roaming network) are available, acquiring the preferred network as quickly as possible while minimizing scanning channels associated with the less preferred networks is benefit. Acquiring less prefe...

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Abstract

A channel scanning order is dynamically created, modified, selectively ignored, or combinations thereof based on historical data, motion information, context information, alert message systems, network reselection, or combinations thereof. If a less preferred network has served a mobile device longer than a threshold amount of time, acquisition of the less preferred network is attempted before attempting acquisition of a more preferred network.

Description

technical field [0001] The following description relates generally to wireless communications and, more specifically, to channel scanning for reducing network acquisition time and improving system selection performance. Background technique [0002] Wireless communication systems are widely deployed to provide various types of communication, and regardless of where the user is located (e.g., inside or outside a building) and whether the user is stationary or mobile (e.g., in a vehicle, while walking) transmit information. For example, voice, data, video, etc. may be provided over wireless communication systems. A typical wireless communication system or network can provide multi-user access to one or more shared resources. A system may use a variety of multiple access techniques such as Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM), Code Division Multiplexing (CDM), Orthogonal Frequency Division Multiplexing (OFDM), and others. [0003] Wireless ...

Claims

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Application Information

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IPC IPC(8): H04W48/16
CPCH04W36/385H04W48/16H04W48/18H04W88/02
Inventor F·M·恩盖P·M·卡纳德A·K·杜V·迪帕克
Owner QUALCOMM INC