METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    在无线通信系统中执行随机访问的方法和装置

    公开(公告)号:US20140198748A1

    公开(公告)日:2014-07-17

    申请号:US14131633

    申请日:2012-07-10

    IPC分类号: H04W74/08

    摘要: Provided are a method and an apparatus for performing random access in a wireless communication system. A terminal receives from a base station a physical downlink control channel (PDCCH) indication, which indicates an initiation of the random access with respect to a secondary cell (SCell), based on whether a cross-carrier scheduling is supported by the SCell; transmits a physical random access channel (PRACH) preamble to the base station through the SCell; and transmits a RACH response as a response to the PRACH preamble, based on whether the SCell supports the cross-carrier scheduling, wherein the SCell and a primary cell (PCell) comprises a carrier aggregation (CA) system, the PCell is a cell from which the terminal performs radio resource control (RRC) connection with the base station, and wherein the SCell is at least one cell from residual cells in the carrier aggregation excluding the PCell.

    摘要翻译: 提供了一种用于在无线通信系统中执行随机接入的方法和装置。 终端基于SCER是否支持跨载波调度,从基站接收指示关于辅助小区(SCell)的随机接入的发起的物理下行链路控制信道(PDCCH)指示; 通过SCell向基站发送物理随机接入信道(PRACH)前导码; 并且基于SCell是否支持跨载波调度,发送作为对PRACH前导码的响应的RACH响应,其中SCell和主小区(PCell)包括载波聚合(CA)系统,PCell是来自 所述终端执行与所述基站的无线电资源控制(RRC)连接,并且其中所述SCell是不包括所述PCell的所述载波聚合中的残余小区中的至少一个小区。