Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and device for estimating available cell load

A technology of user equipment and cells, applied in transmission monitoring, power management, network traffic/resource management, etc., to improve the effect of uplink transmission

Inactive Publication Date: 2013-10-09
TELEFON AB LM ERICSSON (PUBL)
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] It is an object of the present invention to provide improved methods and apparatus to solve the problems outlined above

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
  • Method and device for estimating available cell load
  • Method and device for estimating available cell load
  • Method and device for estimating available cell load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 The scenario when a user equipment makes a serving cell change (case 1) is depicted in . When the UE changes the serving cell to a cell, the previous binding from the UE in the L other The load in will suddenly be under the control of the cell, and the current L otherAn estimate would be an overestimate of the actual value. This will cause the cell to underestimate the amount of load available and, as a result, the scheduling is lower than the bit rate achievable under the given load constraints.

[0033] There is also a problem when the UE leaves one cell (ie changes the serving cell to another cell). L of the cell other The true value of increases immediately but the estimated value will take some time to converge to this new value. This leads to an overestimation of available resources, with possible result overloading. Overloading can cause the coverage of a cell to shrink, with possible consequences of lost calls and failed access attempts.

[0034]...

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

Methods and devices for determining an available load in a cell of a cellular radio system are provided where the determination of the available load is made in response to an estimated inter cell interference load. An estimated inter cell interference is determined. The inter cell interference change events are monitored by determining when a User Equipment changes serving cell or when the User Equipment adds or removes a cell to the active set of the User Equipment. The determined inter cell interference is adjusted by an estimated load caused by the User Equipment causing an inter cell interference change event, and the available load is determined in response to the adjusted inter cell interference. The method can continuously update inter cell interference. Moreover, the update can be made fast and thereby allow an improved estimation of the available cell load.

Description

technical field [0001] The present invention relates to a method and a device for estimating the available cell load in a cellular radio system. Background technique [0002] Since the uplinks in Wideband Code Division Multiple Access (WCDMA) cellular radio systems are non-orthogonal, the so-called near-far problem must be dealt with, i.e., terminals close to the base station can easily overwhelm signals from terminals located at cell boundaries . In order to ensure coverage for terminals at cell borders, a limit is introduced on the total received power at the base station. A relative measure of total interference is rise over thermal (RoT) or noise rise, i.e., total interference relative to thermal noise, see Harri Holma, Antti Toskala, "WCDMA for UMTS--Radio Access For Third Generation Mobile Communications (with WCDMA over UMTS - Radio Access for Third Generation Mobile Communications), 3rd edition. [0003] The total uplink interference can come from both intra-cell ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W52/34H04W72/54
CPCH04W24/08H04W28/08H04B17/0077H04B17/005H04W72/1252H04B17/345H04B17/382H04W72/52
Inventor 张璋M·布洛姆格伦
Owner TELEFON AB LM ERICSSON (PUBL)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com