Data packet transferring/transmitting method and mobile communication system

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

Inactive Publication Date: 2005-09-14
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] (S5) The real-time performance of the communication is

Method used

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  • Data packet transferring/transmitting method and mobile communication system
  • Data packet transferring/transmitting method and mobile communication system
  • Data packet transferring/transmitting method and mobile communication system

Examples

Experimental program
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Embodiment Construction

[0073] (A) Description of the first embodiment of the present invention

[0074] An embodiment of the present invention will be described below with reference to the drawings.

[0075] 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.

[0076] (1-1) Core network 100 and switch 1

[0077] The core network 100 is a network in which a line switch (not shown), a packet switch, an...

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Abstract

A packet transferring/transmitting method is provided for use in a mobile communication system 50 . In this packet transferring/transmitting method, an upper node 1 determines the implementation of handover (determination step), and a handover addressing node 2 transfers, of a plurality of packets, a non-transmitted residual packet to a handover addressed node 3, and the upper node 1 transmits a new packet to the handover addressed node 3 (transfer/transmission step). This enables maintaining the number of users to be accommodated while securing a wide bandwidth, sharing a line with high efficiency at soft handover, avoiding data residual in the case of the employment of variable communication rate, and preventing an increase in retransmission.

Description

technical field [0001] 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 [0002] 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 voice and still images included in current main services. Under such circumstances, as a standardization group for the third generation mobile communication system, 3GPP / 3GPP2 (Third Generation Partnership Project / Third Generation Partnership Project 2) is organized, which aims at ...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04W28/14H04W36/00H04W36/08H04W36/18H04W36/38H04W92/00
CPCH04W36/02H04W36/38H04W28/10H04L1/18H04L2001/0097H04W36/18
Inventor 富田哲生池田荣次小林一成熊谷智宪
Owner FUJITSU LTD
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