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System and method for controlling network, network controlling apparatus, and mobile terminal

A mobile terminal and network technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as inability to hand over service quality, increase costs, and complex network management

Inactive Publication Date: 2007-06-20
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, quality of service (QoS) cannot be handed over during handover between heterogeneous wireless communication systems
In addition, when adding a PDC wireless system to a WCDMA network, a dedicated STM interface for the PDC system must be re-added to the WCDMA network, which will cause complicated network management and will increase costs

Method used

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  • System and method for controlling network, network controlling apparatus, and mobile terminal
  • System and method for controlling network, network controlling apparatus, and mobile terminal
  • System and method for controlling network, network controlling apparatus, and mobile terminal

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Embodiment Construction

[0036] The present invention will be described in detail below with reference to the accompanying drawings.

[0037] FIG. 1 shows the structure of a network control system according to an embodiment of the present invention. The network control system includes: a mobile terminal 10; various wireless communication systems 20-50; and an IP network 100, which is positioned as an upper layer above the wireless system. The mobile terminal 10 is a hybrid wireless communication terminal capable of handling a variety of wireless schemes including, for example, Wideband Code Division Multiple Access (WCDMA) as the IMT-2000 standard, High Speed ​​Downlink Packet Access as an extended version of WCDMA (HSDPA), IEEE802.11 wireless local area network standard, and IMT-2000 next-generation wireless solution, etc. Above the IP network 100 is the application layer 200 .

[0038] In the example shown in FIG. 1, the WCDMA wireless system 20 includes access points (eg, wireless base stations) ...

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Abstract

A network control system, which controls connections between a mobile terminal and multiple types of wireless systems accommodated in a network, includes a prescribed node provided on the network. The node comprises signal transmitting / receiving means that transmits and receives a control signal defined by each of the wireless systems, protocol converting means that converts the control signal to a common protocol independent of each of the wireless systems, and entity communication controlling means that communicates with multiple functional entities provided on the network, using the common protocol, to implement network control.

Description

[0001] This application is a divisional application of the original application number 200410006039.0 (application date: February 25, 2004, title of invention: system and method for controlling network, network control device and mobile terminal). technical field [0002] The present invention relates to a network control system for realizing unified network management for heterogeneous wireless communication systems. The present invention also relates to a network control device and a mobile terminal used in such a network control system. Background technique [0003] It is expected that the future mobile communication system will be provided in a heterogeneous access environment that accommodates various wireless systems using different types of wireless schemes, except as a third-generation mobile communication system. In addition to WCDMA (Wideband Code Division Multiple Access) and wireless local area networks of wireless schemes, the wireless schemes also include next-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L12/24H04L29/02H04L29/06
Inventor 柿岛纯泽田政宏井原武平田昇一
Owner NTT DOCOMO INC
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