公开(公告)号：US20140036828A1

公开(公告)日：2014-02-06

申请号：US14044480

申请日：2013-10-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aris PAPASAKELLARIOU ,  Joon-Yong Cho

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0092 ,  H04W4/06 ,  H04W8/26 ,  H04W24/00 ,  H04W48/10 ,  H04W48/12 ,  H04W56/00 ,  H04W72/04

Abstract: Methods and apparatuses for transmitting and receiving at least one Downlink Control Information (DCI) in a communication system supporting Carrier Aggregation (CA) are provided. The method for receiving includes receiving information representative of presence of carrier indicator by higher layer signaling from a Node B; receiving information representative of at least one cell indicator by higher layer signaling from the Node B; defining an UE specific search space based on aggregation level, an UE ID, and at least one carrier indicator value, where the UE specific search space includes a set of Physical Downlink Control CHannel (PDCCH) candidates based on the aggregation level; decoding at least one PDCCH including at least one DCI respectively by the UE ID; and acquiring the at least one DCI, wherein the at least one carrier indicator value is based on the at least one cell indicator.

Abstract translation: 提供了在支持载波聚合（CA）的通信系统中发送和接收至少一个下行链路控制信息（DCI）的方法和装置。 所述接收方法包括通过来自节点B的较高层信令接收表示载波指示符的存在的信息; 通过来自节点B的更高层信令接收表示至少一个小区指示符的信息; 基于聚合级别，UE ID和至少一个载波指示符值来定义UE特定搜索空间，其中UE特定搜索空间基于聚合级别包括一组物理下行链路控制信道（PDCCH）候选; 通过所述UE ID分别解码包括至少一个DCI的至少一个PDCCH; 以及获取所述至少一个DCI，其中所述至少一个载波指示符值基于所述至少一个小区指示符。