JP7248611B2 - 無線通信の半永続的スケジューリングのためのシステム及び方法 - Google Patents
無線通信の半永続的スケジューリングのためのシステム及び方法 Download PDFInfo
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Description
定められている。疑似ランダムシーケンス生成器は、各サブフレームの始めに次式により
開始される。
・PDSCH REマッピングのためのゼロ電力CSI-RS(channel state information-reference signal)リソース
・PDSCH REマッピングのためのPDSCH開始位置
・PDSCH REマッピングのためのCSI-RSリソース構成同一性
所与のサービングセルに対してTM10で構成されたUE102は、UE及び所与のサービングセルを対象としたDCIフォーマット1Aを有する検出されたPDCCH/EPDCCHに従ってPDSCHを復号化するために、PDSCH REマッピング及び地理的に同一なPDSCHアンテナポートを決定する上位レイヤシグナリングにより、表2の4個のパラメータセットから選択されたパラメータセットにより構成され得る。UE102は、構成されたパラメータセットを用いて、DCIフォーマット1Aを有する検出されたPDCCH/EPDCCHに対応するPDSCH、及びDCIフォーマット1Aを有するPDCCH/EPDCCHの中で示されたSPS有効化に関連する対応するPDCCHを有しないPDSCHを復号化するために、PDSCH REマッピング及び地理的に同一なPDSCHアンテナポートを決定しても良い。
本開示は、SPS PDSCH送信(つまり、PDCCHを有しないPDSCH)のためのDM-RSの使用方法を提供する。留意すべきことに、用語「PDCCH」は、ここでは、レガシーPDCCH又はEPDCCHを包含する。
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
eNBは、(SPS開始を含む)全てのSPS送信について独立に{nSCID}又は{nSCID及び/又は
以下の例は、更なる実施形態に関連する。
Claims (12)
- 第1のサブフレーム内で、半永続的スケジューリング(SPS:semi-persistent scheduling)開始に対応する下り物理制御チャネル(PDCCH:physical downlink control channel)又は拡張型下り物理制御チャネル(EPDCCH:enhanced physical downlink control channel)を受信する手段と、
前記SPS開始に基づき、第2のサブフレーム内でダウンリンク(DL)割り当てを構成する手段と、
前記第2のサブフレーム内で、対応のPDCCH又はEPDCCH無しに、SPS向け下り物理共用チャネル(PDSCH:physical downlink shared channel)を受信する手段と、
を備えたユーザ装置であって、
前記第1のサブフレーム内の前記PDCCH又はEPDCCHは、SPS通信に用いられるスクランブリング同一性の値(nSCID)を伝達し、
関連するSPS開始に対応する前記PDCCH又はEPDCCHから得られる前記nSCIDを用いて、前記SPS向けPDSCHに対応した参照信号シーケンスを決定することであって、前記参照信号シーケンスを決定するために、前記ユーザ装置は、前記値(nSCID)に基づいて選択され且つ前記SPS開始に対応し且つSPSセッション中に物理層より上の層におけるシグナリングにより構成される仮想セル同一性
に基づき、前記参照信号シーケンスを生成するよう構成され、
前記関連するSPS開始に対応する前記PDCCH又はEPDCCHから得られる前記値(nSCID)を用いて決定された前記参照信号シーケンスに基づき、前記SPS向けPDSCHを処理する、
ことを特徴とした、ユーザ装置。 - 前記ユーザ装置は、CoMP(coordinated multipoint)送信又は受信のための送信モード10のために構成され、
前記PDSCH、及び前記関連するSPS開始に対応する前記PDCCH又はEPDCCHの1つ以上はCoMP通信を含む、請求項1に記載のユーザ装置。 - 前記ユーザ装置は、ダウンリンク制御情報(DCI)フォーマットを監視するよう更に構成され、前記値(nSCID)は、2Dフォーマットのダウンリンク制御情報において伝達される、請求項1に記載のユーザ装置。
- 前記関連するSPS開始に対応する前記PDCCH又はEPDCCHは、更に、PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値を伝達し、
前記ユーザ装置は、前記PQIの値により示される送信パラメータセットに基づき前記SPS PDSCHを処理するよう構成されている、請求項1に記載のユーザ装置。 - PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき、前記SPS向けPDSCHを処理するよう更に構成され、前記PQIの値は、RRCレイヤシグナリングに基づき構成されている、請求項1に記載の装置。
- 第1のサブフレーム内で、半永続的スケジューリング(SPS:semi-persistent scheduling)開始に対応する下り物理制御チャネル(PDCCH:physical downlink control channel)又は拡張型下り物理制御チャネル(EPDCCH:enhanced physical downlink control channel)を受信するステップと、
前記SPS開始に基づき、第2のサブフレーム内でダウンリンク(DL)割り当てを構成するステップと、
前記第2のサブフレーム内で、対応のPDCCH又はEPDCCH無しに、SPS向け下り物理共用チャネル(PDSCH:physical downlink shared channel)を受信するステップと、
を含むユーザ装置における無線通信のための方法であって、
前記第1のサブフレーム内の前記PDCCH又はEPDCCHは、SPS通信に用いられるスクランブリング同一性の値(nSCID)を伝達し、
関連するSPS開始に対応する前記PDCCH又はEPDCCHから得られる前記nSCIDを用いて、前記SPS向けPDSCHに対応した参照信号シーケンスを決定することであって、前記参照信号シーケンスを決定することは、前記ユーザ装置が、
前記値(nSCID)に基づいて選択され且つ前記SPS開始に対応する仮想セル同一性
に基づき、前記参照信号シーケンスを生成するよう構成されており、
前記仮想セル同一性は、前記関連するSPS開始に対応し、且つSPSセッション中に物理層より上の層におけるシグナリングにより構成され、
前記関連するSPS開始に対応する前記PDCCH又はEPDCCHから得られる前記値(nSCID)を用いて決定された前記参照信号シーケンスに基づき、前記SPS向けPDSCHを処理する、
ことを特徴とした、方法。 - 前記ユーザ装置は、CoMP(coordinated multipoint)送信又は受信のための送信モード10のために構成され、
前記PDSCH、及び前記関連するSPS開始に対応する前記PDCCH又はEPDCCHの1つ以上はCoMP通信を含む、請求項6に記載の方法。 - ダウンリンク制御情報(DCI)フォーマットを監視することを更に含み、前記値(nSCID)は、2Dフォーマットのダウンリンク制御情報において伝達される、請求項6に記載の方法。
- 前記関連するSPS開始に対応する前記PDCCH又はEPDCCHは、更に、PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値を伝達し、
前記ユーザ装置が前記PQIの値により示される送信パラメータセットに基づき前記SPS PDSCHを処理することを更に含む、請求項6に記載の方法。 - PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき、前記SPS向けPDSCHを処理することを更に含み、前記PQIの値は、RRCレイヤシグナリングに基づき構成されている、請求項6に記載の方法。
- 請求項6-10の何れか1項に記載の方法をプロセッサに実現させるための指令を記憶したコンピュータプログラム。
- 請求項11に記載のコンピュータプログラムを記憶したコンピュータ読み取り可能な記憶媒体。
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US201261707784P | 2012-09-28 | 2012-09-28 | |
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US201261721436P | 2012-11-01 | 2012-11-01 | |
US61/721,436 | 2012-11-01 | ||
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US13/928,722 | 2013-06-27 |
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