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Frame transmission/reception system, frame transmitting apparatus, frame receiving apparatus, and frame transmission/reception method

A technology for a transceiver system and a sending device, applied in transmission systems, digital transmission systems, connection management, etc., and can solve problems such as connection delay and performance degradation

Inactive Publication Date: 2005-02-16
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for the latter, there is a problem that one mobile station must manage multiple RLC connections
This requires the device to manage the performance of the RLC connection one by one according to the data flow. In addition, whenever the mobile station is handed over (handover), the transmission connection for transmitting the RLC frame is switched simultaneously according to the data flow, which brings load to the mobile station and the network. degrading their performance
In addition, when the mobile station adds data streams, there is a problem of connection delay due to RLC connection setup.

Method used

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  • Frame transmission/reception system, frame transmitting apparatus, frame receiving apparatus, and frame transmission/reception method
  • Frame transmission/reception system, frame transmitting apparatus, frame receiving apparatus, and frame transmission/reception method
  • Frame transmission/reception system, frame transmitting apparatus, frame receiving apparatus, and frame transmission/reception method

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Embodiment Construction

[0028] The contents of the present invention can be easily understood by considering the following detailed description with reference to the accompanying drawings, which are shown for illustrative purposes only. Hereinafter, embodiments of the present invention will be described with reference to the drawings. Where possible, the same symbols are assigned to the same parts, and repeated explanations are omitted.

[0029] A network 1a (frame transmission and reception system) which is the premise of describing this embodiment will be described using FIG. 1 . This network 1 a is constituted by a mobile communication network 10 , a mobile station 20 and a mobile network 30 . In addition, the mobile communication network 10 includes a base station 101 , a wireless line control station 102 and a core network 103 . The mobile station 20 has a wireless interface for accessing the mobile communication network 10, and is connected to a mobile network 30 composed of one or more commu...

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Abstract

Provided is a frame receiver capable of reducing the number of settings of radio protocol connection and improving communication quality and performances of a mobile device and a network.This frame receiver 50 is provided with a QoS reference 502 for identifying whether or not each frame is a confirmation type frame on the basis of a QoS identifier provided to each frame, and a sequence number reference 503 for determining the loss of frame for only the confirmation type frame to request re-transmission.

Description

technical field [0001] The invention relates to a frame sending and receiving system, a frame sending device, a frame receiving device and a frame sending and receiving method. Background technique [0002] As a third generation mobile communication system, there is UMTS (Universal Mobile Telecommunications System) standardized by 3GPP (3rd Generation Partnership Project). In the wireless access mode of UMTS, an independent wireless protocol is used between the physical layer and the application layer to communicate. The radio protocol is set between the mobile station and the radio network controller (RNC), and consists of sublayers such as PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), and MAC (Medium Access Control). Among them, the RLC sublayer (refer to the following Non-Patent Document 1) can set up a connection at the start of communication, and perform acknowledged or unacknowledged communication. In the RLC sublayer, three modes of TM (Transpar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04L1/00H04L1/16H04L1/18H04L47/43H04W28/04H04W28/06H04W28/24H04W80/02
CPCH04L1/1877H04L1/1809H04L2001/0098H04L1/1838
Inventor 川上博
Owner NTT DOCOMO INC