Patent ID: 9185681
Filing Date: 2015-11-10
Classification: H04W

Abstract:
1. A method for receiving, by user equipment (UE), a paging message in a cloud radio access network (RAN) system, the method comprising: receiving information on a location update range of a UE, which is determined based on moving speed and a moving direction of the UE, from a baseband unit (BBU) or a mobility management entity (MME); transmitting information on moving information of the UE, which is determined based on the received information on the location update range and a measurement result with respect to at least one accessible remote radio frequency (RF) unit (RRU) of the UE, and the measurement result to the BBU or the MME; and receiving a paging message from the MME through at least one RRU included in an updated location update range, which is determined based on the transmitted measurement result and the moving information of the UE, wherein the cloud RAN system comprises at least one virtual BBU pool, wherein the at least one virtual BBU pool includes a plurality of BBUs to perform hierarchical process and a plurality of RRUs to transmit or receive a radio signal, and wherein one RRUs is mapped to at least one BBU through an access gateway and is controlled by the at least one BBU.