APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING ACTIVATION INDICATOR REGARDING COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM

摘要

A method for supporting activation/deactivation of serving cells by a base station (BS) in a wireless communication system provides decreased overhead and decreased power consumption for a user equipment (UE). The method includes configuring M supportable serving cells in the UE, configuring an indicator indicating activation/deactivation of each of the M serving cells, configuring a medium access control (MAC) message which includes a MAC control element (CE) and a logical channel identifier (LCID), the MAC CE including the indicator configured for each of the M serving cells and having a length corresponding to an integer multiple of 8 bits, the LCID indicating that the MAC CE includes the indicator indicating activation/deactivation of each serving cell, and transmitting the configured MAC message to the UE. Accordingly, a control channel or data channel regarding a component carrier is selectively received depending on whether the component carrier is activated.

主权项

1. A method for controlling cell activation by a base station (BS), comprising:
transmitting, to a user equipment (UE), a serving cell configuration comprising one or more indices to configure one or more serving cells through radio resource control (RRC); determining activation or deactivation of each serving cell which is configured in the UE; setting the determined activation or deactivation to a 1-bit indicator; and transmitting, to the UE, a medium access control signal comprising indicators for the one or more serving cells configured in the UE in a bit-stream consisting of eight bits, wherein the one or more serving cells is configurable by the UE based on the serving cell configuration, the one or more serving cells being a subset of serving cells configurable by the BS, wherein the activation instructs the UE to monitor reception of at least one of a control channel and the deactivation instructs the UE to stop monitoring reception of at least one of the control channel, and wherein the activation is set to 1 and the deactivation is set to 0.