Unlock instant, AI-driven research and patent intelligence for your innovation.

Radio resource usage optimisation in a packet network

a packet network and radio resource technology, applied in the field of multimedia services, can solve the problems of radio link b drain, radio link under utilization, prolonging picture transfer time,

Inactive Publication Date: 2007-08-23
TELEFON AB LM ERICSSON (PUBL)
View PDF11 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]FIG. 2 illustrates schematically the Radio Link configuration for the Push-To-Watch service. The transport chain of the Push-To-Watch service consists of two cascaded radio links as shown in FIG. 2. In the state of the art solution, these links are totally decoupled, meaning that retransmissions and

Problems solved by technology

Assuming both radio link protocols perform selective repeat ARQ with in-sequence delivery (as used in most cellular systems), this may lead to a situation where the buffers of the Radio Link B drain because Radio Link A is performing retransmissions.
The problem occurs in Radio Link B, where the jitter in the incoming data flow from UTRAN A may cause the buffer at UTRAN B to drain, causing radio link under utilization, which in turn prolongs the picture transfer time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radio resource usage optimisation in a packet network
  • Radio resource usage optimisation in a packet network
  • Radio resource usage optimisation in a packet network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The Universal Mobile Telecommunications Service (UMTS) provides for a radio access network known as the UMTS Terrestrial Radio Access Network (UTRAN). The two main components of the UTRAN are the Radio Network Controller (RNC) which controls the radio resources, and the Node B which operates as a base station. Different RNCs communicate with each other over the lur interface. UMTS also provides for a core network which will comprise components for facilitating the General Packet Radio Service (GPRS) which is an example of a packet switched access service. In particular, the core network will contain Serving GPRS Support Nodes (SGSNs) and Gateway GPRS Support Nodes (GGSNs).

[0022] UMTS provides for a Radio Link Control (RLC) layer which is responsible for controlling data transmission over the wireless link. Whilst the RLC can operate in a number of modes, the mode of interest here is the “acknowledged” mode which ensures error free transmission for upper layers of the protoco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of optimising the use of radio resources in a mobile radio communication system during a combinational multimedia session involving circuit switched and packet switched sessions between user terminals, the method comprising: disabling an in-sequence delivery option of packets between radio network control nodes of the radio access network(s) serving the user terminals for said packet switched session.

Description

FIELD OF THE INVENTION [0001] The present invention relates to combinational multimedia services and more particularly to a method of optimising the data transmission associated with such service. BACKGROUND TO THE INVENTION [0002] IP Multimedia (IPMM) services provide a dynamic combination of voice, video, messaging, data, etc. within the same session. By growing the numbers of basic applications and the media which it is possible to combine, the number of services offered to the end users will grow, and the inter-personal communication experience will be enriched. This will lead to a new generation of personalised, rich multimedia communication services, including so-called “combinational IP Multimedia” services which are considered in more detail below. [0003] IP Multimedia Subsystem (IMS) is the technology defined (in TS 32.225, Release 5) by the Third Generation Partnership Project (3GPP) to provide IP Multimedia services over 3G mobile communication networks. IMS provides key ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/26H04L12/56H04L29/06H04L29/08
CPCH04L29/06H04W28/10H04L69/324H04L69/163H04W80/10H04L9/40
Inventor PESIA, JANNESAGFORS, MATSTORSNER, JOHANWAGER, STEFAN
Owner TELEFON AB LM ERICSSON (PUBL)