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Method for controlling data-flow in communication system

A communication system and mobile communication system technology, applied in the field of data flow control communication system, can solve problems such as invalid use of system resources, delay, etc.

Inactive Publication Date: 2002-02-27
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, the deadlock situation results in inefficient use of system resources and unnecessary delays

Method used

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  • Method for controlling data-flow in communication system
  • Method for controlling data-flow in communication system
  • Method for controlling data-flow in communication system

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Experimental program
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Embodiment Construction

[0013] Preferred embodiments of the present invention will now be described in detail with reference to examples in the accompanying drawings.

[0014] figure 2 A data flow control procedure in a communication system including an originating system and a receiving system according to the present invention will be described. The originating or receiving system may be a mobile station or a base station in a mobile communication system, and a wireless channel may be used for data transmission in the communication system.

[0015] according to figure 2 , the receiving system in the RLC layer initially sends a window size number (hereinafter, "WSN") greater than 0 to the originating system, and the WSN limits the number of protocol data units (hereinafter, "PDU") transmitted to the receiving system (S19). Then the originating system resets the Tx_window_size value according to the received WSN, and generates a corresponding number of PDUs according to the reset value of Tx_wind...

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Abstract

A method for controlling a data flow in a communication system including an originating system and a receiving system is disclosed. The method includes repeating to transmit the desired window size number greater than 0 from the receiving system to the originating after a predetermined time period had elapsed since the last transmission of the window size number, said repeating being continuously performed until any one of corresponding PDUs is transmitted to the receiving system. The method further includes a step of terminating a connection between two systems if there is no corresponding PDU transmitted to the receiving system until said repeating is performed a predetermined number of times.

Description

field of invention [0001] The present invention relates to next generation mobile communication, in particular to a method for controlling data flow in a communication system. Background technique [0002] Generally, sliding window data flow control is widely used to prevent packet loss and many other purposes when transmitting packets in a communication system. In particular, the sliding window data flow control in the radio link control (hereinafter, "RLC") layer has 0 to 2 12 -1 window size, and transmit packets with sequence numbers within the window size range to the receiving system. [0003] figure 1 A typical sliding window data flow control procedure in a communication system according to the prior art is described. according to figure 1 , the receiving system at the RLC layer initially sends to the originating system (S9) a window size number (hereinafter, "WSN") limiting the number of transmitted protocol data units (hereinafter, "PDU"). The originating syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04B7/26H04L1/18H04W28/00H04W28/10H04W28/18H04W76/06
CPCH04W76/06H04L47/14H04W28/18H04W28/10H04L47/263H04L47/10H04L1/187H04L47/27H04W76/30H04W8/04
Inventor 李承俊朴真荣
Owner LG ELECTRONICS INC