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Flow-control in UMTS

A data flow and bandwidth capacity technology, applied in the direction of forward error control, network traffic/resource management, transmission modification based on link quality, etc., can solve problems such as adverse effects of applications, and achieve the effect of avoiding serious loss

Inactive Publication Date: 2008-08-20
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the bandwidth of HS-DSCH causes HS-DSCH data frames to be lost, it will have adverse effects on TCP-based applications

Method used

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  • Flow-control in UMTS

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0049] Referring now to Figures 3-6, for information sent from another network to a user equipment (UE) in a mobile telephony network using High Speed ​​Downlink Packet Access (HSDPA), specifically radio network control in a mobile telephony network Flows between a Controller (RNC) and a Radio Base Station (RBS) are used to describe the general flow of information in a system built according to UMTS including mobile telephony networks as well as some other network. These figures mainly only include elements and functions that are relevant or required for the general information flow.

[0050] Many packet data applications use the standardized Transmission Control Protocol (TCP) specified by the IETF for sending data. As seen in FIG. 3 , data, such as Internet web pages, can be sent from the application server 101 to an application program running on a user device 107, i.e. a mobile terminal, for example via a public data network (PDN), such as the Internet, also known as a gener...

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PUM

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Abstract

A network includes a first node and a second node and data frames are transmitted from the first node to the second node. Each of the data frames carry information belonging to one of a plurality of data flows. In a flow control unit (125) there is an estimate or measure determining unit (1201) for determining for each of the data flows, at the ends of first time periods having a predetermined first length, an estimate of or a measure representing the total number of received data frames that have been faulty during the first time period. A reference calculating unit (1101) is connected to the estimate or measure determining unit for calculating, based on the determined estimate or measure, a bandwidth capacity reference value determining the currently maximum allowable bandwidth for transmission from the data transmitting node to the data receiving node. The first node can be a radio network controller and the second node a radio base station, the data frames forwarded in an HS-DSCH over an Iub interface.

Description

technical field [0001] The present invention relates to the flow control of the transfer of data frames from one node to another node, in particular, to a network comprising a first node and a second node or a data sending node and a data receiving node, and from a first node to a second node. The method for two nodes to send data frames. Background technique [0002] Universal Mobile Telecommunications System (UMTS) is a network technology that allows the transfer of voice as well as high-speed data. It is part of the third generation (3G) wireless standards as specified by the Third Generation Partnership Project (3GPP). Wideband Code Division Multiple Access (WCDMA), also known as Wideband CDMA, is a method of radio transmission used in UMTS. UMTS is an evolution of GSM / GPRS that supports packetized voice and data transmission. [0003] A method called High Speed ​​Downlink Packet Access (HSDPA) is used to increase the ability to transmit data, resulting in lower cost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04Q7/38H04L12/56H04W28/04H04W28/20H04W92/12
CPCH04L47/10H04L1/1812H04W28/20H04L1/0072H04L1/20H04L1/1887H04L1/0002H04L1/203H04W92/12H04W28/04
Inventor P·隆德S·纳达斯
Owner TELEFON AB LM ERICSSON (PUBL)
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