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Method and apparatus for transceiving wireless signal in wireless communication system

專利號(hào)
US10219263B2
公開日期
2019-02-26
申請(qǐng)人
LG ELECTRONICS INC.（KR Seoul）
發(fā)明人
Suckchel Yang; Joonkui Ahn; Seungmin Lee; Hanbyul Seo
IPC分類
H04W72/00; H04W72/04; H04B7/26; H04L5/00; H04W24/08; H04W52/14; H04L27/00; H04W52/40; H04W52/24
技術(shù)領(lǐng)域
rrp,ucell,sf,ue,pdcch,dl,sfs,ul,dci,pcell
地域： Seoul

摘要

The present invention relates to a wireless communication system, specifically to a method comprising the steps of: configuring a PCell of a licensed band and an SCell of an unlicensed band for a base station; receiving resource configuration information concerning the SCell by means of a physical downlink control channel (PDCCH) of the PCell; configuring a subframe set within a temporary time duration on the SCell on the basis of the resource configuration information; and communicating with the base station by means of the subframe set temporarily configured on the SCell, and to an apparatus for the method.

說明書

For cross-CC scheduling, a carrier indicator field (CIF) is used. Presence or absence of the CIF in a PDCCH can be determined by higher layer signaling (e.g. RRC signaling) semi-statically and UE-specifically (or UE group-specifically). The baseline of PDCCH transmission is summarized as follows.

    • CIF disabled: a PDCCH on a DL CC is used to allocate a PDSCH resource on the same DL CC or a PUSCH resource on a linked UL CC.
      • No CIF
    • CIF enabled: a PDCCH on a DL CC can be used to allocate a PDSCH or PUSCH resource on a specific DL/UL CC from among a plurality of aggregated DL/UL CCs using the CIF.
      • LTE DCI format extended to have CIF
        • CIF corresponds to a fixed x-bit field (e.g. x=3) (when CIF is set)
        • CIF position is fixed irrespective of DIC format size (when CIF is set)

When the CIF is present, the BS may allocate a monitoring DL CC (set) to reduce BD complexity of the UE. For PDSCH/PUSCH scheduling, the UE may detect/decode a PDCCH only on the corresponding DL CCs. The BS may transmit the PDCCH only through the monitoring DL CC (set). The monitoring DL CC set may be set UE-specifically, UE-group-specifically or cell-specifically.

權(quán)利要求

1
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