METHOD FOR PROCESSING CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS) IN WIRELESS COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To provide a CSI-RS transmission method efficiently using radio resources of eNBs while UE effectively perform channel measurement in an LTE-A system.SOLUTION: An embodiment of the present invention defines a plurality of CSI-RS patterns, assigns them to individual cells, uses...
Gespeichert in:
Hauptverfasser: | , , , , , |
---|---|
Format: | Patent |
Sprache: | eng ; jpn |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a CSI-RS transmission method efficiently using radio resources of eNBs while UE effectively perform channel measurement in an LTE-A system.SOLUTION: An embodiment of the present invention defines a plurality of CSI-RS patterns, assigns them to individual cells, uses the CSI-RSs alternately per Physical Resource Block (PRB) so as to utilize the transmission power of all antenna ports for transmitting CSI-RSs, transmits Coordinated Multi Point (CoMP) CSI-RSs and non-CoMP CSI-RSs separately, and mutes data in sections corresponding to the patterns in association with the CSI-RS pattern of adjacent cells.
【課題】LTE−AシステムにおいてUEが効果的にチャンネル測定を行うと同時に、eNBの無線資源を効率よく使用するCSI−RSの伝送方式を提供すること。【解決手段】本発明の実施形態においては、複数のCSI−RSパターンを定義し、これを各セル別に割り当て、物理資源ブロック(PRB:Physical Resource Block)別にCSI−RSを交互に交差的に使用してCSI−RSの送信に全てのアンテナポートの伝送電力を活用し、多地点協調(CoMP:Coordinated Multi Point)用のCSI−RSとNon−CoMP用のCSI−RSとに分けて伝送し、隣り合うセルのCSI−RSパターンに連動してパターンに対応する区間のデータをミュートさせる。【選択図】図6 |
---|