Apparatus and method for managing an access mode of a node b in a wireless communication system

Abstract

An apparatus and a method for managing an access mode of an NB in a wireless communication system. In the method for changing the access mode of a second NB at a first NB or a CN, an access mode change of the second NB is determined. An access mode change request message is transmitted to the second NB, requesting the access mode change of the second NB. An access mode change response message including an access mode control result is received from the second NB.

Description

PRIORITY[0001]The present application claims priority under 35 U.S.C. §119(a) to a Korean patent application filed in the Korean Intellectual Property Office on Jun. 9, 2009 and assigned Serial No. 10-2009-0051131, the entire disclosure of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to an apparatus and a method for managing an access mode of a Node B (NB) in a wireless communication system. More particularly, the present invention relates to an apparatus and a method for determining and changing an access mode of an NB, depending on different factors in a wireless communication system.[0004]2. Description of the Related Art[0005]In a conventional cellular communication system, an NB, which is connected to a mobile communication core network, provides communication services to User Equipments (UEs) that located within a cell area of the NB.[0006]When an amount of communication in a c...

AI Technical Summary

Benefits of technology

The present invention provides an apparatus and method for managing an access mode of a Node B in a wireless communication system. The technical effects of the invention include solving interference problems between neighboring NBs using different access modes and providing a load balancing effect in specific areas or when an event occurs. Additionally, the invention allows for changing the access mode of an NB based on different factors in the wireless communication system, such as interference from neighboring NBs or load balancing requirements. The method includes transmitting an access mode change request message to the NB and receiving an access mode change response message including an access mode control result. Overall, the invention improves the efficiency and reliability of wireless communication systems.

Problems solved by technology

When an amount of communication in a cell area of an NB is expected to increase temporarily, for example, during a large gathering such as a party or concert, a load of the cell is also expected to increase temporarily, which may affect the quality of the communication services provided by the NB.

Additionally, in a conventional cellular communication system, a channel state often deteriorates due to a geographical condition inside a cell, an increased distance between a UE and an NB, or movement of a UE.

If a UE is located in the shadowing area, an NB may not be able perform sufficient communication because a channel state associated with the UE is poor.

Accordingly, in an environment where neighbor NBs use the same frequency, when a UE that receives a service from an NB that utilizes an open access mode enters a coverage of an NB that utilizes a closed access mode, a serious interference factor is generated between the neighbor NBs that use the different access modes, which deteriorates communication quality.

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