JP2016533131A - 無線通信システムにおける上りリンク電力を制御する方法及び装置 - Google Patents
無線通信システムにおける上りリンク電力を制御する方法及び装置 Download PDFInfo
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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
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account user or data type priority
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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
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
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- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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- H—ELECTRICITY
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
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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
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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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
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
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- H—ELECTRICITY
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
Description
に関する。
2> UEのeNB1への全体伝送パワーがPCMAX、eNB1(i)を超過する場合、eNB2(または、他の搬送波グループ)への未使用のパワーを計算する。
3> eNB1への全体パワーがPCMAX、eNB1(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB1の搬送波グループ内で電力縮小を行う。
3> eNB2への全体パワーがPCMAX、eNB2(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB2の搬送波グループ内で電力縮小を行う。
2> UEのeNB1への全体伝送パワーがPCMAX、eNB1(i)を超過する場合、eNB2(または、他の搬送波グループ)への未使用のパワーを計算する。
3> eNB1への全体パワーがPCMAX、eNB1(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB1の搬送波グループ内で電力縮小を行う。
3> eNB2への全体パワーがPCMAX、eNB2(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB2の搬送波グループ内で電力縮小を行う。
2> UEのeNB1への全体伝送パワーがPCMAX、eNB1(i)を超過する場合、前記eNB1がMeMBであり、前記MeNBが優先順位を有することと仮定して、eNB2(または、他の搬送波グループ)への未使用のパワーを計算する。
3> eNB1への全体パワーがPCMAX、eNB1(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB1の搬送波グループ内で電力縮小を行う。
3> eNB2への全体パワーがPCMAX、eNB2(i)と同じであるか、これより少ないように減少させるために、3GPP LTE rel−11で使用された規則にしたがってeNB2の搬送波グループ内で電力縮小を行う。
・サブフレーム#n及びサブフレーム#n+1がグループへの上りリンク伝送と重なると仮定するとき、他の搬送波グループにより未使用のnまたはn+1サブフレームパワーの最小
・未使用のnまたはn+1サブフレームパワーの最大
・未使用のnまたはn+1サブフレームパワーの平均
・nサブフレーム内の未使用のパワー、PCMAX−Palloc_xeNBのうち、最小であって、このとき、xeNBは、サブフレームnのeNB。
Claims (14)
- 無線通信システムにおける端末(UE;user equipment)による上りリンク電力を制御する方法であって、
第1の搬送波グループに対する第1の最小留保電力及び第2の搬送波グループに対する第2の最小留保電力を割り当てるステップと、
前記第1の最小留保電力及び前記第2の最小留保電力を割り当てたステップの後、前記第1の最小留保電力及び前記第2の最小留保電力を除いた残りの電力に対して前記第1の搬送波グループ及び前記第2の搬送波グループ間に電力共有規則を適用するステップを含む、方法。 - 前記第1の最小留保電力及び前記第2の最小留保電力を二重連結(dualconnectivity)のMeNB(master eNodeB)により構成する、請求項1に記載の方法。
- 前記第1の最小留保電力及び前記第2の最小留保電力は、比率により構成される、請求項1に記載の方法。
- 前記第1の最小留保電力及び前記第2の最小留保電力は、前記端末のPRACH(physical random access channel)伝送電力を制限しない、請求項1に記載の方法。
- 前記残りの電力は、前記端末のための最大電力から前記第1の最小留保電力及び前記第2の最小留保電力を引いて得られる値で決定される、請求項1に記載の方法。
- 前記電力共有規則は、チャネル優先順位によって適用される、請求項1に記載の方法。
- 前記チャネル優先順位でPRACHが最も高い優先順位を有する、請求項6に記載の方法。
- PUCCH(physical uplink control channel)がPUSCH(physical uplink shared channel)より高い優先順位を有する、請求項6に記載の方法。
- 上りリンク制御情報(UCI;uplink control information)を含むPUSCHがUCIを含まないPUSCHより高い優先順位を有する、請求項6に記載の方法。
- 前記第2の搬送波グループで上りリンク伝送がない場合、前記端末のための最大電力が前記第1の搬送波グループに割り当てられる、請求項1に記載の方法。
- 第1の割り当てられた電力及び第2の割り当てられた電力に基づいて、前記第1の搬送波グループ及び前記第2の搬送波グループ内で各々電力縮小を行うステップをさらに含み、
前記第1の割り当てられた電力は、前記第1の最小留保電力及び前記残りの電力に対する電力共有規則に基づいて計算され、
前記第2の割り当てられた電力は、前記第2の最小留保電力及び前記残りの電力に対する電力共有規則に基づいて計算される、請求項1に記載の方法。 - 前記第1の搬送波グループは、二重連結でMeNBに対応し、
前記第2の搬送波グループは、二重連結でSeNB(secondary eNB)に対応する、請求項1に記載の方法。 - 前記第1の搬送波グループは、複数の構成搬送波(CC;component carrier)を備え、
前記第2の搬送波グループは、複数のCCを備える、請求項1に記載の方法。 - 無線通信システムにおける端末(UE;user equipment)であって、
無線信号を伝送または受信するRF(radio frequency)部と、
前記RF部と連結されるプロセッサと、
を備え、
前記プロセッサは、
第1の搬送波グループに対する第1の最小留保電力及び第2の搬送波グループに対する第2の最小留保電力を割り当て、
前記第1の最小留保電力及び前記第2の最小留保電力を割り当てた後、前記第1の最小留保電力及び前記第2の最小留保電力を除いた残りの電力に対して前記第1の搬送波グループ及び前記第2の搬送波グループ間に電力共有規則を適用するように構成される、端末。
Applications Claiming Priority (27)
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US201461927503P | 2014-01-15 | 2014-01-15 | |
US61/927,503 | 2014-01-15 | ||
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