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wtru and the method implemented in wtru

一种无线接入网络、网络的技术，应用在无线通信系统中有利于系统间切换领域

Inactive Publication Date: 2018-08-07
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no easy way to switch from a cellular-type communication system like UMTS to a WLAN-type communication system like a hotspot

Method used

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  • wtru and the method implemented in wtru
  • wtru and the method implemented in wtru

Examples

Experimental program
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Embodiment Construction

[0012] Herein, the term "WTRU" includes, but is not limited to, a station, mobile station, user equipment, fixed or mobile subscriber unit, pager, or any other type of device operable in a wireless environment.

[0013] The invention uses different wireless communication protocols to facilitate switching between two different wireless communication systems. The wireless communication system can be any type presented by future wireless communication systems, including but not limited to Universal Mobile Communications Service, Code Division Multiple Access 2000 (CDMA2000), Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS) , IEEE802.11 system and Bluetooth.

[0014] For simplicity, the present invention will be described hereinafter with reference to the UMTS system and the IEEE802.11 WLAN communication system providing hotspots within the coverage area of ​​the UMTS system. However, as mentioned above, it should be noted that the present invent...

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PUM

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Abstract

The present invention relates to WTRUs and methods implemented in WTRUs. The method includes the WTRU receiving a network information message via a cellular network when the WTRU is in an active mode or an idle mode, and in response to receiving the neighbor cell list when the WTRU is in an active mode, the WTRU perform actual measurements only on signals transmitted from the radio access network identified in the neighbor cell list, the WTRU selects a network from the plurality of radio access networks for handover, the WTRU activates Handover procedure with the selected network; with the WTRU in idle mode, the WTRU uses the received information about the radio access network to select a radio access identified in the neighbor cell list into the network and activate a new call to the selected radio access network.

Description

[0001] This application is a divisional application of the Chinese invention patent application with the application number 200480033518.X, the application date is November 12, 2004, and the invention title is "Method and System Facilitating Switching Between Systems". technical field [0002] The present invention relates to wireless communication systems. More particularly, the present invention relates to methods and systems for facilitating handover between systems in wireless communication systems. Background technique [0003] Prior art cellular wireless communication systems, such as the Universal Mobile Telecommunications Service (UMTS) system, comprise a plurality of cells with specific coverage areas. When a wireless transmit / receive unit (WTRU) moves across cell boundaries, the WTRU must handover from one cell to another. [0004] Each cell disseminates the information needed to facilitate handover procedures within the UMTS system. This information typically in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04M11/00H04W36/14H04W88/06
CPCH04W36/0061H04W88/06H04W36/24H04W36/1446H04W84/12H04W36/30
Inventor 费堤·M·欧茨鲁克
Owner INTERDIGITAL TECH CORP
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