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    • 10. 发明申请
    • DOWNLINK CONTROL IN HETEROGENEOUS NETWORKS
    • 异构网络中的下行链路控制
    • US20120106465A1
    • 2012-05-03
    • US13098022
    • 2011-04-29
    • Afshin HaghighatPascal M. AdjakpleDavid S. BassMahmoud WatfaMihaela C. BeluriGuodong Zhang
    • Afshin HaghighatPascal M. AdjakpleDavid S. BassMahmoud WatfaMihaela C. BeluriGuodong Zhang
    • H04W74/04H04W72/04
    • H04W72/1289H04L1/1829H04L5/0053H04W84/045
    • Embodiments contemplate a wireless transmit/receive unit (WTRU) that may operate in a heterogeneous wireless communication network (HetNet). The WTRU may detect the presence of an extended physical downlink control channel (E-PDCCH) and may decode a physical downlink control channel (PDCCH) upon detecting the E-PDCCH. The WTRU may obtain scheduling information of the E-PDCCH on a physical downlink shared control channel (PDSCH) from the decoded PDCCH. The WTRU may also determine control information for the WTRU from the E-PDCCH using the scheduling information of the E-PDCCH. The HetNet may further include a first eNB and a second eNB and the WTRU may receive the E-PDCCH from the first eNB and another E-PDCCH from the second eNB. The other E-PDCCH may be coordinated with the E-PDCCH such that the interference between the other E-PDCCH and the E-PDCCH from the perspective of the WTRU may be reduced relative to no coordination.
    • 实施例考虑可以在异构无线通信网络(HetNet)中操作的无线发射/接收单元(WTRU)。 WTRU可以检测到扩展物理下行链路控制信道(E-PDCCH)的存在,并且可以在检测到E-PDCCH时解码物理下行链路控制信道(PDCCH)。 WTRU可以从解码的PDCCH获取物理下行链路共享控制信道(PDSCH)上的E-PDCCH的调度信息。 WTRU还可以使用E-PDCCH的调度信息从E-PDCCH确定WTRU的控制信息。 HetNet还可以包括第一eNB和第二eNB,并且WTRU可以从第一eNB接收E-PDCCH,并从另一个eNB接收另一个E-PDCCH。 其他E-PDCCH可以与E-PDCCH协调,使得相对于无协调,可以减少来自WTRU的角度的其他E-PDCCH与E-PDCCH之间的干扰。