Access Probability Aware Cell Reselection for 3G Evolution

Mingju LI  Lei DU  Lan CHEN 

Publication
IEICE TRANSACTIONS on Communications  Vol.E92-B  No.5  pp.1825-1827
Publication Date: 2009/05/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
cell reselection,  access class (AC) barring,  load balancing, 

Full Text: PDF(297.2KB)

Summary: 
In LTE, AC barring check is performed before RRC connection. In some cells with a low access probability, the UEs keep retrying access which results in higher connection failure and longer access delay. We therefore propose balancing the UEs by adjusting the cell reselection criteria based on the access probability, so that the UEs shall be more encouraged to reselect a cell with a higher access probability.