The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
May. 06, 2009
Joo-young Baek, Pohang, KR;
Sok-hyong Kim, Pohang, KR;
Young-joo Suh, Pohang, KR;
Jeong-yoon Lee, Pohang, KR;
Joo-Young Baek, Pohang, KR;
Sok-Hyong Kim, Pohang, KR;
Young-Joo Suh, Pohang, KR;
Jeong-Yoon Lee, Pohang, KR;
Postech Academy-Industry Foundation, Pohang, Kyungsnagbook-Do, KR;
Posco, Pohang, Kyungsangbook-Do, KR;
Posdata Co., Ltd., Seongnam, Kyunggi-Do, KR;
Posco Research Association, Pohang, Kyungsangbook-Do, KR;
Abstract
There is provided a method of switching a zone through which services are provided to subscriber stations (SS) in an environment using an FRF-1 zone and an FRF-3 zone based on traffic load of each zone in order to reduce the inter-cell interference in 802.16/WiBro systems. The service zone switching method based on load considering inter-cell interference in 802.16/WiBro systems may be useful to minimize the inter-cell interference, enhance the capacity of cells and improve users' transmission quality in the cells by determining whether the services are provided through one out of an FRF-1 zone (a zone where users in 3 sectors of one cell can use all subchannels) and an FRF-3 zone (a zone where users in each of 3 sectors of one cell can use one third of all subchannels; 3 sectors of one cell use 3 channel group, respectively), which are present in one frame, based on the distribution and traffic load of subscriber stations (SS) present in one cell, which consists of 3 sector units, under the environment of the 802.16/WiBro systems, and providing services through the selected zone.