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Packet transmission/delivery method and mobile communication system

A mobile communication system and data transmission technology, applied in the field of data packet transmission/sending method and mobile communication system, can solve problems such as service quality degradation and real-time communication performance degradation

Inactive Publication Date: 2010-03-17
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] (S5) The real-time performance of the communication is reduced, which leads to a decrease in the quality of service

Method used

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  • Packet transmission/delivery method and mobile communication system
  • Packet transmission/delivery method and mobile communication system
  • Packet transmission/delivery method and mobile communication system

Examples

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Embodiment Construction

[0074] (A) Description of the first embodiment of the present invention

[0075] An embodiment of the present invention will be described below with reference to the drawings.

[0076] figure 1 It shows the structure of the main part of the W-CDMA system to which the present invention is applied. figure 1 The shown W-CDMA system 50 is a mobile communication system designed to implement the data packet transmission / transmission method according to the present invention, and the mobile communication system is used to transmit / receive information such as voice, still image and Large-volume data of moving images, and includes core network (CN) 100; radio network controllers (RNC) 2-0, 2-1; base stations (BTS) 3-0 to 3-5; and mobile unit (UE) 4 . The W-CDMA system 50 includes a large number of nodes which are omitted from the figure.

[0077] (1-1) Core network 100 and switch 1

[0078] The core network 100 is a network in which a line switch (not shown), a packet switch, an...

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Abstract

The invention provides a packet transmission / delivery method and a mobile communication system. In the mobile communication system, the switchover processing performed according to the migration of amobile station transmits the residual packet data at a first base station to a second base station; the mobile communication system comprises a retransmission control unit which performs retransmission control in the wireless part managed by the second base station; the retransmission control and the mobile station together performs on account of the residual packet data transmitted to the secondbase station, wherein, the mobile station comprises a reception unit which is used for receiving the packet data controlled by the retransmission control unit; under the management of the retransmission control of the first base station, the management of the retransmission control of the residual packet data in the first base station is handed over to the retransmission unit of the second base station from the first base station; and the first base station does not manage the transmitted retransmission control of the residual packet data.

Description

[0001] This application is a divisional case of the original patent application number 02829656.7 (international application number: PCT / JP2002 / 009763, filing date: September 24, 2002, invention name: data packet transmission / sending method and mobile communication system) Apply. technical field [0002] The present invention relates to the soft handover in the high-speed large-capacity communication process in the W-CDMA (Wideband-Code Division Multiple Access: Wideband CDMA) system, more specifically, relate to be suitable for DSCH (downlink public channel) and HS-DSCH (high speed downlink channel) Public channel) data packet transmission / transmission method and mobile communication system. Background technique [0003] In recent years, the CDMA mobile communication system has been developed rapidly. In addition, commercial services based on the W-CDMA system have also started, which enables transmission / reception of large-capacity data such as moving images together with...

Claims

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Application Information

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IPC IPC(8): H04W36/02H04L12/56
Inventor 富田哲生池田荣次小林一成熊谷智宪
Owner FUJITSU LTD
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