Processing

Please wait...

Settings

Settings

Goto Application

1. WO1998016029 - METHOD FOR IMPROVING CO-CHANNEL INTERFERENCE IN A CELLULAR SYSTEM

Publication Number WO/1998/016029
Publication Date 16.04.1998
International Application No. PCT/US1997/017801
International Filing Date 03.10.1997
Chapter 2 Demand Filed 27.04.1998
IPC
H04B 7/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
H04W 16/02 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
02Resource partitioning among network components, e.g. reuse partitioning
H04W 16/12 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cell structures
02Resource partitioning among network components, e.g. reuse partitioning
12Fixed resource partitioning
CPC
H04B 7/2621
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
2621using frequency division multiple access [FDMA]
H04W 16/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
02Resource partitioning among network components, e.g. reuse partitioning
H04W 16/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
02Resource partitioning among network components, e.g. reuse partitioning
12Fixed resource partitioning
Applicants
  • ERICSSON, INC. [US]/[US]
Inventors
  • REINHOLD, Stanley
  • HASSAN, Amer
  • RAMESH, Rajaram
Agents
  • BENNETT, David, E.
Priority Data
08/728,56410.10.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR IMPROVING CO-CHANNEL INTERFERENCE IN A CELLULAR SYSTEM
(FR) PROCEDE PERMETTANT D'ATTENUER LES INTERFERENCES ENTRE CO-CANAUX DANS UN SYSTEME CELLULAIRE
Abstract
(EN)
A fractional loading scheme is used to improve the spectral efficiency of a cellular system, and therefore increase the number of users that the system can support. The fractional loading scheme allows only a fraction of the total number of available communication channels within each cell to be used simultaneously. Thus, each cell is deliberately underloaded to operate at less than its full capacity. The underloading of the individual cells reduces the spectral efficiency within each cell. However, the underloading of each cell means that there will be fewer interfering users at any given time so that the co-channel interference is reduced. This reduction in co-channel interference allows the reuse distance between co-channel cells to be reduced thereby increasing the reuse of frequencies throughout the system resulting in an increase in spectral efficiency in the system as a whole.
(FR)
La présente invention consiste à utiliser un diagramme de charge fractionnelle pour améliorer le rendement spectral d'un système cellulaire, et partant, d'augmenter le nombre d'utilisateurs que ce système peut admettre. Le diagramme de charge fractionnelle ne permet l'utilisation simultanée que d'une fraction du nombre total de canaux de communication disponibles dans chaque cellule. Il en résulte que chaque cellule est délibérément en sous-charge pour pouvoir fonctionner en surcapacité. La sous-charge de chacune des cellules réduit le rendement spectral à l'intérieur de chaque cellule. Toutefois, la sous-charge de chacune des cellules signifie qu'il y aura moins d'interférences entre utilisateurs à un moment donné, ce qui réduit les interférences entre co-canaux. Cette diminution des interférences entre co-canaux permet de réduire la distance de réemploi entre cellules de co-canaux, ce qui augmente d'autant le réemploi des fréquences dans l'ensemble du système, et ce qui se retrouve sous la forme d'une augmentation du rendement spectral dans le système pris dans son ensemble.
Latest bibliographic data on file with the International Bureau