WO2018201402A1 - 确定上行信号的传输参数的方法、终端和网络设备 - Google Patents
确定上行信号的传输参数的方法、终端和网络设备 Download PDFInfo
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- WO2018201402A1 WO2018201402A1 PCT/CN2017/083083 CN2017083083W WO2018201402A1 WO 2018201402 A1 WO2018201402 A1 WO 2018201402A1 CN 2017083083 W CN2017083083 W CN 2017083083W WO 2018201402 A1 WO2018201402 A1 WO 2018201402A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
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- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
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- 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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- 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) or DMT
Definitions
- the terminal may determine, according to the target SRS resource, a transmission parameter used for transmitting the uplink signal to be transmitted, so that the SRS resource in the prior art can only be used to transmit the SRS to estimate the channel state, and the SRS resource is used reasonably. Avoid wasting SRS resources.
- the beams used to transmit the SRS signals on different SRS resources in the target SRS resource set are different.
- the first indication information is used to indicate a first SRS resource in the first SRS resource set, and the SRS resource in the first SRS resource set corresponds to a first The second SRS resource set, where the second SRS resource set corresponding to the first SRS resource is the target SRS resource set.
- the beams used to transmit the SRS signals on different SRS resources in the target SRS resource set are different.
- FIG. 1 is a wireless communication system 100 to which an embodiment of the present application is applied.
- FIG. 2 is a schematic flowchart of a method for determining transmission parameters of an uplink signal according to an embodiment of the present application.
- FIG. 1 is a wireless communication system 100 to which an embodiment of the present application is applied.
- the wireless communication system 100 can include a network device 110.
- Network device 110 may be a device that communicates with a terminal device.
- Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.
- the terminal determines a first sounding reference signal SRS resource set.
- the foregoing first SRS resource set includes at least one SRS resource
- the SRS resource may be a transmission resource used for transmitting the SRS.
- the first indication information may also indicate the target SRS resource set by means of an index of the SRS resource in the first SRS resource set.
- the terminal receives second indication information that is sent by the network device, where the second indication information is used to indicate a target SRS resource in the target SRS resource set.
- the network device determines, according to the target SRS resource, a transmission parameter that the terminal transmits an uplink signal to be transmitted.
- the transmission parameter is a precoding matrix
- the method further includes: the network device sending, to the terminal, a first precoding matrix indicating PMI information, where the first precoding matrix indicates The PMI information and the number of antenna ports of the target SRS resource indicate a precoding matrix of the uplink data to be transmitted by a mapping relationship between the number of antenna ports, PMI information, and a precoding matrix.
- a receiving unit configured to receive first indication information that is sent by the network device, where the first indication information is used to indicate that the terminal transmits an aperiodic SRS;
- the processor 520 may be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more.
- CPU central processing unit
- ASIC application specific integrated circuit
- a determining unit configured to determine the first indication information according to the SRS, the first indication information The information is also used to determine the target SRS transmission resource;
- the sending unit is further configured to: send configuration information to the terminal, where the configuration information is used to configure the first SRS resource set for the terminal.
- the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
- the implementation process constitutes any limitation.
- the computer program product includes one or more computer instructions.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
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- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Description
Claims (52)
- 一种确定上行信号的传输参数的方法,其特征在于,包括:终端确定第一探测参考信号SRS资源集合;所述终端接收网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端传输非周期性SRS;所述终端根据所述第一指示信息和所述第一SRS资源集合确定目标SRS资源集合;所述终端在所述目标SRS资源集合中的SRS资源上向所述网络设备发送所述非周期性SRS;所述终端接收所述网络设备发送的第二指示信息,所述第二指示信息用于指示所述目标SRS资源集合中的目标SRS资源;所述终端根据所述目标SRS资源确定用于传输待传输的上行信号的传输参数。
- 如权利要求1所述的方法,其特征在于,所述第一指示信息用于指示所述目标SRS资源集合,所述终端根据所述第一指示信息和所述第一SRS资源集合确定目标SRS资源集合,包括:所述终端根据所述第一指示信息从所述第一SRS资源集合中确定所述目标SRS资源集合,所述目标SRS资源集合为所述第一SRS资源集合的子集。
- 如权利要求1所述的方法,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第一SRS资源,所述终端根据所述第一指示信息和所述第一SRS资源集合确定目标SRS资源集合,包括:所述终端根据所述第一指示信息从所述第一SRS资源集合中确定所述第一SRS资源;所述终端根据所述第一SRS资源以及所述第一SRS资源集合中每个SRS资源与第二SRS资源集合的对应关系,确定所述第一SRS资源对应的第二SRS资源集合为所述目标资源集合。
- 如权利要求3所述的方法,其特征在于,所述第一SRS资源集合中的不同的SRS资源对应不同的第二SRS资源集合。
- 如权利要求1所述的方法,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第二SRS资源,所述终端根据所述第一指示信息和所述第一SRS资源集合确定目标SRS资源集合,包括:所述终端根据所述第一指示信息和所述第一SRS资源集合,确定所述第二SRS资源在所述第一SRS资源集合中的索引;所述终端根据所述第二SRS资源在所述第一SRS资源集合中的索引,以及第一SRS资源集合中的SRS资源的索引与索引集合的对应关系,确定所述第二SRS资源对应的索引集合;所述终端确定所述第二SRS资源对应的索引集合中的索引指示的SRS资源组成所述目标SRS资源集合。
- 如权利要求1-5中任一项所述的方法,其特征在于,所述第一SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求1-6中任一项所述的方法,其特征在于,所述目标SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求1-7中任一项所述的方法,其特征在于,所述传输参数为波束赋形权值,所述终端根据所述目标SRS资源确定用于传输待传输的上行信号的传输参数,包括:所述终端将在所述目标SRS资源上传输SRS信号所用的波束赋形权值,作为传输所述待传输的上行信号所用的波束赋形权值。
- 如权利要求1-8中任一项所述的方法,其特征在于,所述传输参数为预编码矩阵,所述终端根据所述目标SRS资源确定用于传输待传输的上行信号的传输参数,包括:所述终端接收所述网络设备发送的第一预编码矩阵指示PMI信息;所述终端根据所述目标SRS资源的天线端口数,以及第一PMI信息,通过天线端口数、PMI信息与预编码矩阵之间的映射关系,确定所述待传输的上行数据的预编码矩阵。
- 如权利要求1-9中任一项所述的方法,其特征在于,在所述终端确定第一SRS资源集合之后,所述方法还包括:所述终端在所述第一SRS资源集合中的SRS资源上向所述网络设备发送SRS。
- 如权利要求10所述的方法,其特征在于,所述终端在所述第一SRS资源集合中的SRS资源上传输SRS,包括:所述终端在所述第一SRS资源集合中的SRS资源上传输所述SRS,所述SRS为周期性SRS或者准持续性SRS。
- 如权利要求10或11所述的方法,其特征在于,所述终端在所述第一SRS资源集合中的SRS资源上向所述网络设备发送SRS,包括:所述终端在所述第一SRS资源集合中的SRS资源的部分天线端口上向所述网络设备发送所述SRS。
- 如权利要求1-12中任一项所述的方法,其特征在于,所述终端确定第一探测参考信号SRS资源集合,包括:所述终端接收所述网络设备发送的配置信息,所述配置信息用于为所述终端配置所述第一SRS资源集合。
- 如权利要求13所述的方法,其特征在于,所述配置信息承载于高层信令或者媒体介入控制MAC层信令中。
- 如权利要求1-14中任一项所述的方法,其特征在于,所述终端接收所述网络设备发送的第二指示信息,包括:所述终端接收所述网络设备发送的用于调度所述待传输的上行数据的下行控制信息DCI,所述DCI携带所述第二指示信息。
- 一种确定上行信号的传输参数的方法,其特征在于,包括:网络设备在第一SRS资源集合中的SRS资源上接收终端发送的SRS;所述网络设备根据所述SRS确定所述第一指示信息,所述第一指示信息还用于确定所述目标SRS传输资源;所述网络设备向所述终端发送所述第一指示信息,所述第一指示信息用于指示所述终端传输非周期性SRS;所述网络设备在目标SRS资源集合中的SRS资源上接收所述终端发送的所述非周期性SRS;所述网络设备根据所述目标SRS资源确定所述终端传输待传输的上行信号的传输参数;所述网络设备向所述终端发送第二指示信息,所述第二指示信息用于指 示所述目标SRS资源集合中的目标SRS资源,所述目标SRS资源用于确定所述终端传输待传输的上行信号的传输参数。
- 如权利要求16所述的方法,其特征在于,所述第一指示信息用于指示所述目标SRS资源集合,所述目标SRS资源集合为所述第一SRS资源集合的子集。
- 如权利要求16所述的方法,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第一SRS资源,所述第一SRS资源集合中的SRS资源对应一个第二SRS资源集合,所述第一SRS资源对应的第二SRS资源集合为所述目标SRS资源集合。
- 如权利要求16所述的方法,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第二SRS资源,所述第二SRS资源在所述第一SRS资源集合中的索引对应一个索引集合,所述第二SRS资源对应的索引集合中的索引指示的SRS资源组成所述目标SRS资源集合。
- 如权利要求16-19中任一项所述的方法,其特征在于,所述第一SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求16-20中任一项所述的方法,其特征在于,所述目标SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求16-21中任一项所述的方法,其特征在于,所述传输参数为波束赋形权值,在所述目标SRS资源上传输SRS信号所用的波束赋形权值作为传输所述待传输的上行信号所用的波束赋形权值。
- 如权利要求16-22中任一项所述的方法,其特征在于,所述传输参数为预编码矩阵,所述方法还包括:所述网络设备向所述终端发送第一预编码矩阵指示PMI信息,所述第一预编码矩阵指示PMI信息以及所述目标SRS资源的天线端口数,通过天线端口数、PMI信息与预编码矩阵之间的映射关系,指示所述待传输的上行数据的预编码矩阵。
- 如权利要求16-23中任一项所述的方法,其特征在于,所述网络设备在第一SRS资源集合中的SRS资源上接收所述终端发送的SRS,包括:所述网络设备在所述第一SRS资源集合中的SRS资源上接收所述终端发送的所述SRS,所述SRS为周期性SRS或者准持续性SRS。
- 如权利要求23或24所述的方法,其特征在于,所述网络设备在所述第一SRS资源集合中的SRS资源上接收所述终端发送的所述SRS,包括:所述网络设备在所述第一SRS资源集合中的SRS资源的部分天线端口上接收所述终端发送的所述SRS。
- 如权利要求16-25中任一项所述的方法,其特征在于,所述方法还包括:所述网络设备向所述终端发送配置信息,所述配置信息用于为所述终端配置所述第一SRS资源集合。
- 一种终端,其特征在于,包括:确定单元,用于确定第一探测参考信号SRS资源集合;接收单元,用于接收网络设备发送的第一指示信息,所述第一指示信息用于指示所述终端传输非周期性SRS;所述确定单元,还用于根据所述第一指示信息和所述第一SRS资源集合确定目标SRS资源集合;发送单元,用于在所述目标SRS资源集合中的SRS资源上向所述网络设备发送所述非周期性SRS;所述接收单元,还用于接收所述网络设备发送的第二指示信息,所述第二指示信息用于指示所述目标SRS资源集合中的目标SRS资源;所述确定单元,还用于根据所述目标SRS资源确定用于传输待传输的上行信号的传输参数。
- 如权利要求27所述的终端,其特征在于,所述第一指示信息用于指示所述目标SRS资源集合,所述确定单元具体用于:根据所述第一指示信息从所述第一SRS资源集合中确定所述目标SRS资源集合,所述目标SRS资源集合为所述第一SRS资源集合的子集。
- 如权利要求27所述的终端,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第一SRS资源,所述确定单元具体用于:根据所述第一指示信息从所述第一SRS资源集合中确定所述第一SRS资源;根据所述第一SRS资源以及所述第一SRS资源集合中每个SRS资源与 第二SRS资源集合的对应关系,确定所述第一SRS资源对应的第二SRS资源集合为所述目标资源集合。
- 如权利要求29所述的终端,其特征在于,所述第一SRS资源集合中的不同的SRS资源对应不同的第二SRS资源集合。
- 如权利要求27所述的终端,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第二SRS资源,所述确定单元具体用于:根据所述第一指示信息和所述第一SRS资源集合,确定所述第二SRS资源在所述第一SRS资源集合中的索引;根据所述第二SRS资源在所述第一SRS资源集合中的索引,以及第一SRS资源集合中的SRS资源的索引与索引集合的对应关系,确定所述第二SRS资源对应的索引集合;确定所述第二SRS资源对应的索引集合中的索引指示的SRS资源组成所述目标SRS资源集合。
- 如权利要求27-31中任一项所述的终端,其特征在于,所述第一SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求27-32中任一项所述的终端,其特征在于,所述目标SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求27-33中任一项所述的终端,其特征在于,所述传输参数为波束赋形权值,所述确定单元具体用于:将在所述目标SRS资源上传输SRS信号所用的波束赋形权值,作为传输所述待传输的上行信号所用的波束赋形权值。
- 如权利要求27-33中任一项所述的终端,其特征在于,所述传输参数为预编码矩阵,所述确定单元具体用于:接收所述网络设备发送的第一预编码矩阵指示PMI信息;根据所述目标SRS资源的天线端口数,以及第一PMI信息,通过天线端口数、PMI信息与预编码矩阵之间的映射关系,确定所述待传输的上行数据的预编码矩阵。
- 如权利要求27-35中任一项所述的终端,其特征在于,所述发送单 元还用于:在所述第一SRS资源集合中的SRS资源上向所述网络设备发送SRS。
- 如权利要求36所述的终端,其特征在于,所述发送单元具体还用于:在所述第一SRS资源集合中的SRS资源上传输所述SRS,所述SRS为周期性SRS或者准持续性SRS。
- 如权利要求36或37所述的终端,其特征在于,所述发送单元具体还用于:在所述第一SRS资源集合中的SRS资源的部分天线端口上向所述网络设备发送所述SRS。
- 如权利要求27-38中任一项所述的终端,其特征在于,所述确定单元还用于:接收所述网络设备发送的配置信息,所述配置信息用于为所述终端配置所述第一SRS资源集合。
- 如权利要求39所述的终端,其特征在于,所述配置信息承载于高层信令或者媒体介入控制MAC层信令中。
- 如权利要求27-40中任一项所述的终端,其特征在于,所述接收单元还用于:接收所述网络设备发送的用于调度所述待传输的上行数据的下行控制信息DCI,所述DCI携带所述第二指示信息。
- 一种网络设备,其特征在于,包括:接收单元,用于在第一SRS资源集合中的SRS资源上接收终端发送的SRS;确定单元,用于根据所述SRS确定所述第一指示信息,所述第一指示信息还用于确定所述目标SRS传输资源;发送单元,用于向所述终端发送所述第一指示信息,所述第一指示信息用于指示所述终端传输非周期性SRS;所述接收单元,还用于在目标SRS资源集合中的SRS资源上接收所述终端发送的所述非周期性SRS;所述确定单元,还用于根据所述目标SRS资源确定所述终端传输待传输的上行信号的传输参数;所述发送单元,还用于向所述终端发送第二指示信息,所述第二指示信息用于指示所述目标SRS资源集合中的目标SRS资源,所述目标SRS资源用于确定所述终端传输待传输的上行信号的传输参数。
- 如权利要求42所述的网络设备,其特征在于,所述第一指示信息用于指示所述目标SRS资源集合,所述目标SRS资源集合为所述第一SRS资源集合的子集。
- 如权利要求42所述的网络设备,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第一SRS资源,所述第一SRS资源集合中的SRS资源对应一个第二SRS资源集合,所述第一SRS资源对应的第二SRS资源集合为所述目标SRS资源集合。
- 如权利要求42所述的网络设备,其特征在于,所述第一指示信息用于指示所述第一SRS资源集合中的第二SRS资源,所述第二SRS资源在所述第一SRS资源集合中的索引对应一个索引集合,所述第二SRS资源对应的索引集合中的索引指示的SRS资源组成所述目标SRS资源集合。
- 如权利要求41-45中任一项所述的网络设备,其特征在于,所述第一SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求41-46中任一项所述的网络设备,其特征在于,所述目标SRS资源集合中的不同SRS资源上传输SRS信号采用的波束不同。
- 如权利要求41-47中任一项所述的网络设备,其特征在于,所述传输参数为波束赋形权值,在所述目标SRS资源上传输SRS信号所用的波束赋形权值作为传输所述待传输的上行信号所用的波束赋形权值。
- 如权利要求41-48中任一项所述的网络设备,其特征在于,所述传输参数为预编码矩阵,所述发送单元具体还用于:向所述终端发送第一预编码矩阵指示PMI信息,所述第一预编码矩阵指示PMI信息以及所述目标SRS资源的天线端口数,通过天线端口数、PMI信息与预编码矩阵之间的映射关系,指示所述待传输的上行数据的预编码矩阵。
- 如权利要求41-49中任一项所述的网络设备,其特征在于,所述接收单元具体还用于:在所述第一SRS资源集合中的SRS资源上接收所述终端发送的所述 SRS,所述SRS为周期性SRS或者准持续性SRS。
- 如权利要求49或50所述的网络设备,其特征在于,所述接收单元具体还用于:在所述第一SRS资源集合中的SRS资源的部分天线端口上接收所述终端发送的所述SRS。
- 如权利要求41-51中任一项所述的网络设备,其特征在于,所述发送单元还用于:向所述终端发送配置信息,所述配置信息用于为所述终端配置所述第一SRS资源集合。
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| BR112019023047A2 (pt) | 2020-06-09 |
| EP3611979A1 (en) | 2020-02-19 |
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| KR102365905B1 (ko) | 2022-02-21 |
| CA3063213A1 (en) | 2019-12-03 |
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| US11637722B2 (en) | 2023-04-25 |
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| AU2017412458A1 (en) | 2019-11-28 |
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| EP3611979B1 (en) | 2021-02-17 |
| IL270383B1 (zh) | 2023-02-01 |
| CN110868282B (zh) | 2021-03-02 |
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