METHOD FOR TRANSCEIVING SYSTEM INFORMATION IN CLOUD WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

• Main Authors: CHOI, HYEYOUNG, CHO, HEEJEONG, LEE, EUNJONG, HAHN, GENEBECK, CHUNG, JAEHOON
• Format: Patent
• Language: English; French; Korean
• Published: 11.06.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

Provided is a method for receiving system information by a terminal in a cloud wireless communication system including one or more baseband units (BBUs) and remote radio units (RRUs), the one or more RRUs being connected to a particular BBU among the BBUs to provide a direct service to the terminal via one or more cells. The method is characterized in that the terminal receives, from the network, an identifier that can understand whether there are any changes in the BBU, the RRU, and the cell, and through the received identifier understands whether there are one or more changes among the BBU, the RRU, and the cell, and selectively receives, from the network, the only system information required for any one among the BBU change, the RRU change, and the cell change. L'invention concerne un procédé permettant à un terminal de recevoir des informations système dans un système de communication sans fil en nuage contenant une ou plusieurs unités de bande de base (BBU) et des unités radio distantes (RRU), lesdites une ou plusieurs RRU étant reliées à une BBU particulière de l'ensemble des BBU pour offrir un service direct au terminal par l'intermédiaire d'une ou plusieurs cellules. Le procédé est caractérisé en ce que le terminal reçoit du réseau un identifiant permettant de savoir s'il y a des modifications dans la BBU, la RRU et la cellule et, grâce à l'identifiant reçu, sait s'il y a une ou plusieurs modifications dans la BBU, la RRU et la cellule, et reçoit sélectivement du réseau les seules informations système exigées pour toute modification, que ce soit une modification de la BBU, une modification de la RRU ou une modification de la cellule. 하나 이상의 BBU (Baseband Unit)들, 상기 BBU들 중 특정 BBU에 하나 이상 연결되어 단말에게 하나 이상의 셀을 통해 직접 서비스를 제공하는 RRU (Remote Radio Unit)를 포함하는 클라우드 무선 통신 시스템에서 단말이 시스템 정보를 수신하는 방법을 제공한다. 본 방법에서는 단말이 BBU, RRU 및 셀의 변경 여부를 파악할 수 있는 식별자를 네트워크로부터 수신하고, 수신된 식별자를 통해 BBU, RRU 및 셀 중 어느 하나 이상의 변경 여부를 파악하여, 네트워크로부터 BBU 변경, RRU 변경, 셀 변경 중 어느 하나에 필요한 시스템 정보만을 선택적으로 수신하는 것을 특징으로 한다.