JPWO2019031856A5 - - Google Patents

Download PDF

Info

Publication number
JPWO2019031856A5
JPWO2019031856A5 JP2019507955A JP2019507955A JPWO2019031856A5 JP WO2019031856 A5 JPWO2019031856 A5 JP WO2019031856A5 JP 2019507955 A JP2019507955 A JP 2019507955A JP 2019507955 A JP2019507955 A JP 2019507955A JP WO2019031856 A5 JPWO2019031856 A5 JP WO2019031856A5
Authority
JP
Japan
Prior art keywords
dmrs
link data
downward link
received
antenna ports
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2019507955A
Other languages
Japanese (ja)
Other versions
JP7171546B2 (en
JP2019535155A (en
Publication date
Application filed filed Critical
Priority claimed from PCT/KR2018/009053 external-priority patent/WO2019031856A1/en
Publication of JP2019535155A publication Critical patent/JP2019535155A/en
Publication of JPWO2019031856A5 publication Critical patent/JPWO2019031856A5/ja
Application granted granted Critical
Publication of JP7171546B2 publication Critical patent/JP7171546B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Description

例えば、ＤＭＲＳとデータとの間の電力比は、ＤＭＲＳのポートにいかなる多重化方法が優先的に適用されたかに応じて、又はＤＭＲＳのマッピングタイプがタイプIであるかタイプIIであるかに応じて変わることができる。 For example, the power ratio between DMRS and data depends on what multiplexing method was preferentially applied to the DMRS port , or whether the DMRS mapping type is type I or type II. Can change .

Claims (12)

無線通信システムで端末（ＵＥ）によって行われる参照信号を受信する方法において、
基地局から、下向きリンク制御情報（ＤＣＩ）を受信するステップと、
前記基地局から、前記ＤＣIに基づいて、復調参照信号（ＤＭＲＳ）及び下向きリンクデータを受信するステップであって、前記ＤＭＲＳ及び前記下向きリンクデータは、１つ以上のアンテナポートに基づいて受信される、ステップと、
前記ＤＭＲＳに基づいて、前記下向きリンクデータを復調するステップと、
を含み、
前記ＤＭＲＳのタイプとしてＤＭＲＳタイプ１が使用され、前記ＤＭＲＳタイプ１において、前記１つ以上のアンテナポートに関連する資源要素を表すｃｏｍｂの数は２であり、
前記１つ以上のアンテナポートに関連する多重化方法は、特定の順序に従い適用され、
前記特定の順序は、アンテナポートの数が増加するに従い、Ｆ－ＣＤＭが最初に使用され、ＦＤＭが続いて使用されるように設定され、
前記１つ以上のアンテナポートの数が２と等しいか又は少ないことに基づいて、前記下向きリンクデータに関連するＯＦＤＭシンボルの数が一定数と等しいか又は少ない場合、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化され、
前記１つ以上のアンテナポートの数が３と等しいか又は多いことに基づいて、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されず、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化される場合、前記ＤＭＲＳの送信電力は、前記下向きリンクデータの送信電力と比較して「０」ｄＢ電力ブースティングされると決定され、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されない場合、前記ＤＭＲＳの前記送信電力は、前記下向きリンクデータの送信電力と比較して「３」ｄＢ電力ブースティングされると決定される、方法。 In a method of receiving a reference signal made by a terminal (UE) in a wireless communication system.
The step of receiving downward link control information (DCI) from the base station,
A step of receiving a demodulation reference signal (DMRS) and downward link data from the base station based on the DCI , wherein the DMRS and the downward link data are received based on one or more antenna ports. , Steps and
A step of demodulating the downward link data based on the DMRS ,
Including
DMRS type 1 is used as the type of DMRS, and in the DMRS type 1, the number of combs representing the resource elements related to the one or more antenna ports is 2.
The multiplexing methods associated with one or more antenna ports are applied according to a particular order.
The particular order is set so that as the number of antenna ports increases, the F-CDM is used first and the FDM is used subsequently.
If the number of OFDM symbols associated with the downward link data is equal to or less than a certain number based on the number of one or more antenna ports equal to or less than 2, the DMRS is within the same OFDM symbol. Multiplexed with the downward link data in
Based on the number of one or more antenna ports equal to or greater than 3, the DMRS is not multiplexed with the downward link data within the same OFDM symbol.
If the DMRS is multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "0" dB power boosted compared to the transmit power of the downward link data. ,
If the DMRS is not multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "3" dB power boosted compared to the transmit power of the downward link data. The method. 前記ＤＣＩは、前記下向きリンクデータが受信されない前記ＤＭＲＳのｃｏｍｂ情報を含み、
前記下向きリンクデータが受信されない前記ＤＭＲＳのｃｏｍｂで前記ＤＭＲＳとチャネル状態情報参照信号とが同じＯＦＤＭシンボル内で多重化されないように、前記チャネル状態情報参照信号の送信が制限される、請求項１に記載の方法。 The DCI contains the comb information of the DMRS from which the downward link data is not received.
The transmission of the channel state information reference signal is restricted so that the DMRS and the channel state information reference signal are not multiplexed in the same OFDM symbol in the comb of the DMRS in which the downward link data is not received, according to claim 1. The method described. 前記ＤＭＲＳが受信されるＯＦＤＭシンボルに含まれた資源要素のうち、前記ＤＭＲＳが受信されない全ての資源要素において、前記下向きリンクデータが受信される、請求項１に記載の方法。 The method according to claim 1, wherein the downward link data is received in all the resource elements included in the OFDM symbol in which the DMRS is received and in which the DMRS is not received. 前記ＤＭＲＳが複数個のＯＦＤＭシンボルで受信される場合、前記複数個のＯＦＤＭシンボルは、各々互いに異なるレートマッチングが適用される、請求項１に記載の方法。 The method of claim 1, wherein when the DMRS is received by a plurality of OFDM symbols, the plurality of OFDM symbols are subject to different rate matching from each other. 前記ＤＭＲＳの各々は、前記ＤＭＲＳが受信される前記複数個のＯＦＤＭシンボルによって互いに異なる送信電力を介して受信される、請求項４に記載の方法。 The method of claim 4 , wherein each of the DMRSs is received via different transmission powers by the plurality of OFDM symbols in which the DMRSs are received. 無線通信システムにおいて参照信号を受信する端末（ＵＥ）において、
無線信号を送受信するためのＲＦモジュールと、
前記ＲＦモジュールを制御するプロセッサと、
を備え、
前記プロセッサは、
基地局から、下向きリンク制御情報（ＤＣＩ）を受信し、
前記基地局から、前記ＤＣIに基づいて、復調参照信号（ＤＭＲＳ）及び下向きリンクデータを受信し、前記ＤＭＲＳ及び前記下向きリンクデータは、１つ以上のアンテナポートに基づいて受信され、
前記ＤＭＲＳに基づいて、前記下向きリンクデータを復調するよう構成され、
前記ＤＭＲＳのタイプとしてＤＭＲＳタイプ１が使用され、前記ＤＭＲＳタイプ１において、前記１つ以上のアンテナポートに関連する資源要素を表すｃｏｍｂの数は２であり、
前記１つ以上のアンテナポートに関連する多重化方法は、特定の順序に従い適用され、
前記特定の順序は、アンテナポートの数が増加するに従い、Ｆ－ＣＤＭが最初に使用され、ＦＤＭが続いて使用されるように設定され、
前記１つ以上のアンテナポートの数が２と等しいか又は少ないことに基づいて、前記下向きリンクデータに関連するＯＦＤＭシンボルの数が一定数と等しいか又は少ない場合、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化され、
前記１つ以上のアンテナポートの数が３と等しいか又は多いことに基づいて、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されず、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化される場合、前記ＤＭＲＳの送信電力は、前記下向きリンクデータの送信電力と比較して「０」ｄＢ電力ブースティングされると決定され、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されない場合、前記ＤＭＲＳの前記送信電力は、前記下向きリンクデータの送信電力と比較して「３」ｄＢ電力ブースティングされると決定される、端末。 In a terminal (UE) that receives a reference signal in a wireless communication system
RF module for sending and receiving wireless signals,
The processor that controls the RF module and
Equipped with
The processor
Receives downward link control information (DCI) from the base station and
The demodulation reference signal (DMRS) and the downward link data are received from the base station based on the DCI , and the DMRS and the downward link data are received based on one or more antenna ports.
Based on the DMRS , it is configured to demodulate the downward link data.
DMRS type 1 is used as the type of DMRS, and in the DMRS type 1, the number of combs representing the resource elements related to the one or more antenna ports is 2.
The multiplexing methods associated with one or more antenna ports are applied according to a particular order.
The particular order is set so that as the number of antenna ports increases, the F-CDM is used first and the FDM is used subsequently.
If the number of OFDM symbols associated with the downward link data is equal to or less than a certain number based on the number of one or more antenna ports equal to or less than 2, the DMRS is within the same OFDM symbol. Multiplexed with the downward link data in
Based on the number of one or more antenna ports equal to or greater than 3, the DMRS is not multiplexed with the downward link data within the same OFDM symbol.
If the DMRS is multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "0" dB power boosted compared to the transmit power of the downward link data. ,
If the DMRS is not multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "3" dB power boosted compared to the transmit power of the downward link data. The terminal. 前記ＤＣＩは、前記下向きリンクデータが受信されない前記ＤＭＲＳのｃｏｍｂ情報を含み、
前記下向きリンクデータが受信されない前記ＤＭＲＳのｃｏｍｂで前記ＤＭＲＳとチャネル状態情報参照信号とが同じＯＦＤＭシンボル内で多重化されないように、前記チャネル状態情報参照信号の送信が制限される、請求項６に記載の端末。 The DCI contains the comb information of the DMRS from which the downward link data is not received.
6. The transmission of the channel state information reference signal is restricted so that the DMRS and the channel state information reference signal are not multiplexed within the same OFDM symbol in the DMRS comb where the downward link data is not received. Described terminal. 前記ＤＭＲＳが受信されるＯＦＤＭシンボルに含まれた資源要素のうち、前記ＤＭＲＳが受信されない全ての資源要素において、前記下向きリンクデータが受信される、請求項６に記載の端末。 The terminal according to claim 6 , wherein the downward link data is received in all the resource elements included in the OFDM symbol in which the DMRS is received and in which the DMRS is not received. 前記ＤＭＲＳが複数個のＯＦＤＭシンボルで受信される場合、前記複数個のＯＦＤＭシンボルは、各々互いに異なるレートマッチングが適用される、請求項６に記載の端末。 The terminal according to claim 6 , wherein when the DMRS is received by a plurality of OFDM symbols, the plurality of OFDM symbols are subject to different rate matching from each other. 前記ＤＭＲＳの各々は、前記ＤＭＲＳが受信される前記複数個のＯＦＤＭシンボルによって互いに異なる送信電力を介して受信される、請求項９に記載の端末。 The terminal according to claim 9 , wherein each of the DMRSs is received via transmission powers different from each other by the plurality of OFDM symbols in which the DMRSs are received. 無線通信システムで基地局によって行われる参照信号を送信する方法において、
端末（ＵＥ）に、下向きリンク制御情報（ＤＣＩ）を送信するステップと、
前記ＵＥに、前記ＤＣIに基づいて、復調参照信号（ＤＭＲＳ）及び下向きリンクデータを送信するステップであって、前記ＤＭＲＳ及び前記下向きリンクデータは、１つ以上のアンテナポートに基づいて送信される、ステップと、
を含み、
前記下向きリンクデータは、前記ＤＭＲＳに基づいて、前記ＵＥにより復調され、
前記ＤＭＲＳのタイプとしてＤＭＲＳタイプ１が使用され、前記ＤＭＲＳタイプ１において、前記１つ以上のアンテナポートに関連する資源要素を表すｃｏｍｂの数は２であり、
前記１つ以上のアンテナポートに関連する多重化方法は、特定の順序に従い適用され、
前記特定の順序は、アンテナポートの数が増加するに従い、Ｆ－ＣＤＭが最初に使用され、ＦＤＭが続いて使用されるように設定され、
前記１つ以上のアンテナポートの数が２と等しいか又は少ないことに基づいて、前記下向きリンクデータに関連するＯＦＤＭシンボルの数が一定数と等しいか又は少ない場合、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化され、
前記１つ以上のアンテナポートの数が３と等しいか又は多いことに基づいて、前記ＤＭＲＳは、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されず、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化される場合、前記ＤＭＲＳの送信電力は、前記下向きリンクデータの送信電力と比較して「０」ｄＢ電力ブースティングされると決定され、
前記ＤＭＲＳが、同じＯＦＤＭシンボル内で前記下向きリンクデータと多重化されない場合、前記ＤＭＲＳの前記送信電力は、前記下向きリンクデータの送信電力と比較して「３」ｄＢ電力ブースティングされると決定される、方法。 In the method of transmitting a reference signal made by a base station in a wireless communication system.
A step of transmitting downward link control information (DCI) to a terminal (UE),
A step of transmitting a demodulation reference signal (DMRS) and downward link data to the UE based on the DCI, wherein the DMRS and the downward link data are transmitted based on one or more antenna ports. Steps and
Including
The downward link data is demodulated by the UE based on the DMRS.
DMRS type 1 is used as the type of DMRS, and in the DMRS type 1, the number of combs representing the resource elements related to the one or more antenna ports is 2.
The multiplexing methods associated with one or more antenna ports are applied according to a particular order.
The particular order is set so that as the number of antenna ports increases, the F-CDM is used first and the FDM is used subsequently.
If the number of OFDM symbols associated with the downward link data is equal to or less than a certain number based on the number of one or more antenna ports equal to or less than 2, the DMRS is within the same OFDM symbol. Multiplexed with the downward link data in
Based on the number of one or more antenna ports equal to or greater than 3, the DMRS is not multiplexed with the downward link data within the same OFDM symbol.
If the DMRS is multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "0" dB power boosted compared to the transmit power of the downward link data. ,
If the DMRS is not multiplexed with the downward link data within the same OFDM symbol, it is determined that the transmit power of the DMRS is "3" dB power boosted compared to the transmit power of the downward link data. The method. 少なくとも１つのプロセッサにより実行されることに基づいて、前記少なくとも１つのプロセッサに、請求項１～５、１１の何れか一項に記載の方法の全てのステップを実行するように制御させる少なくとも１つの命令を格納するコンピュータ読み取り可能な記憶媒体。At least one that causes the at least one processor to be controlled to perform all the steps of the method according to any one of claims 1-5, 11 based on being performed by at least one processor. A computer-readable storage medium that stores instructions.
JP2019507955A 2017-08-08 2018-08-08 Method and apparatus for transmitting and receiving reference signals in wireless communication system Active JP7171546B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201762542782P 2017-08-08 2017-08-08
US62/542,782 2017-08-08
US201762544009P 2017-08-11 2017-08-11
US62/544,009 2017-08-11
PCT/KR2018/009053 WO2019031856A1 (en) 2017-08-08 2018-08-08 Method for transmitting/receiving reference signal in wireless communication system, and device therefor

Publications (3)

Publication Number Publication Date
JP2019535155A JP2019535155A (en) 2019-12-05
JPWO2019031856A5 true JPWO2019031856A5 (en) 2022-06-08
JP7171546B2 JP7171546B2 (en) 2022-11-15

Family

ID=65272364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019507955A Active JP7171546B2 (en) 2017-08-08 2018-08-08 Method and apparatus for transmitting and receiving reference signals in wireless communication system

Country Status (6)

Country Link
US (1) US11063716B2 (en)
EP (1) EP3667977B1 (en)
JP (1) JP7171546B2 (en)
KR (1) KR101971702B1 (en)
CN (1) CN109891818B (en)
WO (1) WO2019031856A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE063291T2 (en) * 2017-09-14 2024-01-28 Ntt Docomo Inc User terminal
CN113472497B (en) 2018-05-11 2022-05-13 华为技术有限公司 Communication method and communication device
US10951282B2 (en) * 2019-02-15 2021-03-16 At&T Intellectual Property I, L.P. Facilitating selection of demodulation reference signal ports in advanced networks
WO2020166976A1 (en) * 2019-02-15 2020-08-20 엘지전자 주식회사 Method for transmitting and receiving data in wireless communication system and apparatus therefor
EP3939194A4 (en) * 2019-03-13 2022-06-29 ZTE Corporation Multi-pilot reference signals
US11374725B2 (en) * 2019-05-21 2022-06-28 Qualcomm Incorporated Multiple power references for high rank transmissions
EP3996309A4 (en) * 2019-07-03 2023-01-11 LG Electronics Inc. Transmission/reception method in 1-bit quantization system, and device therefor
CN112449413B (en) * 2019-08-29 2023-05-09 中国移动通信有限公司研究院 Power indication method, power determination device, network equipment and terminal
US11617163B2 (en) * 2019-10-23 2023-03-28 Qualcomm Incorporated Avoiding collisions with reference signals
EP4216618A4 (en) * 2020-09-18 2024-06-12 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for sending dmrs, and terminal and medium
WO2023131908A1 (en) * 2022-01-06 2023-07-13 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Methods and apparatus of demodulation reference signal (dmrs) transmission

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102076076B (en) * 2009-11-20 2015-11-25 夏普株式会社 A kind of resource allocation informing method of demodulated reference signal
JP5735541B2 (en) * 2010-01-18 2015-06-17 エルジー エレクトロニクス インコーポレイティド Method and apparatus for providing channel quality information in a wireless communication system
EP2685648B1 (en) 2011-03-11 2017-02-22 LG Electronics Inc. Method for receiving downlink signal and method for transmitting same, user equipment, and base station
US9001756B2 (en) * 2011-04-27 2015-04-07 Texas Instruments Incorporated Physical downlink control channel and physical hybrid automatic repeat request indicator channel enhancements
EP2793406B1 (en) 2011-12-16 2016-10-05 LG Electronics Inc. Method and apparatus for resource mapping for physical channel in multiple cell system
EP4228170A1 (en) * 2012-03-19 2023-08-16 Panasonic Intellectual Property Corporation of America Transmission device, receiving device, transmission method, and receiving method
US9019924B2 (en) 2012-04-04 2015-04-28 Samsung Electronics Co., Ltd. High-order multiple-user multiple-input multiple-output operation for wireless communication systems
CN104620518B (en) * 2012-09-16 2018-02-23 Lg电子株式会社 The method and apparatus that data are received in the wireless communication system for supporting cooperation transmission
US20160028521A1 (en) * 2013-03-13 2016-01-28 Sharp Kabushiki Kaisha Base station, terminal, communication system, communication method, and integrated circuit
US10841907B2 (en) * 2016-02-02 2020-11-17 Nec Corporation Method and apparatus for communication based on short transmission time intervals in wireless communication system
US10608856B2 (en) * 2016-06-16 2020-03-31 Samsung Electronics Co., Ltd. Transmission of reference signals in a communication system
EP3602945A4 (en) * 2017-03-23 2020-12-30 Innovative Technology Lab Co., Ltd. Method and apparatus for transmitting and receiving demodulation reference signal
CN110574411A (en) * 2017-05-02 2019-12-13 株式会社Ntt都科摩 User device and communication method
KR101978852B1 (en) 2017-08-04 2019-05-16 엘지전자 주식회사 Method and apparatus for transmitting and receiving reference signals in a wireless communication system
HUE063291T2 (en) 2017-09-14 2024-01-28 Ntt Docomo Inc User terminal

Similar Documents

Publication Publication Date Title
CN108289018B (en) Method and equipment for transmitting reference signal
EP2406897B1 (en) Method and apparatus for uplink transmissions and cqi reports with carrier aggregation
JP6077529B2 (en) Control channel transmission method and apparatus for dedicated reference signal in wireless communication system
KR101650749B1 (en) Method and apparatus for allocation and indication of control channel in backhaul subframe for relay
CN102696179B (en) Subscriber station, basestation and method in wireless communication system
JP5539362B2 (en) PUCCH spatial code transmission diversity method and system
US8582519B2 (en) System and method for channel estimation in a delay diversity wireless communication system
US10700833B2 (en) Transmission parameter configuration method and base station, information transmission method and terminal, and storage medium
KR100922980B1 (en) Apparatus and method for channel estimation in an ofdm system using multiple antenna
JP4583388B2 (en) Base station equipment
CN101622898B (en) Base station device, mobile communication system, mobile station, and communication control method
EP3593578B1 (en) System and method for demodulation reference signal overhead reduction
CN102246578A (en) Radio communication system, radio transmission device, radio reception device, radio transmission method, and radio reception method
JPWO2019031856A5 (en)
KR102607061B1 (en) Method and apparatus for receiving data, and method for transmitting data in mobile communication system
EP2333996B1 (en) Mobile station
CN113455061A (en) Method and apparatus for transmitting and receiving synchronization signal in wireless communication system
WO2016204353A1 (en) Method and device for transmitting control information to be used in terminal
WO2022056849A1 (en) Method and apparatus for sending dmrs, and terminal and medium
EP3985895B1 (en) Device and method for transmitting control data with low peak-to-average power ratio
CN112449413B (en) Power indication method, power determination device, network equipment and terminal
JP2002261726A (en) Ofdm signal transmitter-receiver
JP2004096445A (en) Radio communication device and communication system
EP3711379B1 (en) User equipment that transmits demodulation reference signals (dm-rss)
WO2008044898A1 (en) Apparatus and method for data transmission/reception in mobile telecommunication system