WO2020175043A1 - 通信装置、通信装置の制御方法、及び、プログラム - Google Patents
通信装置、通信装置の制御方法、及び、プログラム Download PDFInfo
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- WO2020175043A1 WO2020175043A1 PCT/JP2020/004214 JP2020004214W WO2020175043A1 WO 2020175043 A1 WO2020175043 A1 WO 2020175043A1 JP 2020004214 W JP2020004214 W JP 2020004214W WO 2020175043 A1 WO2020175043 A1 WO 2020175043A1
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- 238000004891 communication Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012549 training Methods 0.000 abstract description 5
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- 238000005516 engineering process Methods 0.000 description 7
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
-
- 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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- 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
- H04B7/0452—Multi-user MIMO systems
-
- 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
- H04L27/2603—Signal structure ensuring backward compatibility with legacy system
-
- 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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- 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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
- H04L5/0025—Spatial division following the spatial signature of the channel
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03598—Algorithms
- H04L2025/03713—Subspace algorithms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03592—Adaptation methods
- H04L2025/03745—Timing of adaptation
- H04L2025/03764—Timing of adaptation only during predefined intervals
- H04L2025/0377—Timing of adaptation only during predefined intervals during the reception of training signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
- H04L2025/03802—Signalling on the reverse channel
- H04L2025/03815—Transmission of a training request
Definitions
- the present invention relates to communication control technology in wireless LAN.
- wireless oral-area network wireless LAN
- wireless LAN wireless LAN
- IEEE 802.1 1 axT ⁇ F DMA ( ⁇ rthogonal frequency — division multipleacces s) realizes high peak throughput of up to 96 Gigabits per second (G bps) and improved communication speed under congested conditions.
- Patent Document 1 IEEE 802.1 1 axT ⁇ F DMA ( ⁇ rthogonal frequency — division multipleacces s) realizes high peak throughput of up to 96 Gigabits per second (G bps) and improved communication speed under congested conditions.
- IEEE 802.1 1 E HT Extremely High T hroughput
- Patent Document 1 Japanese Patent Laid-Open No. 20 1 8 _ 5 0 1 3 3
- the present disclosure provides a mechanism for notifying one or more wireless !_ 1 ⁇ 1 terminals of a total number of spatial streams greater than 8.
- a communication device has the following features. That is, A communication device having a transmitting means for transmitting a physical (1 to 1) frame having a preamble and a data field,
- the preamble is a preamble
- L-LT F Long Raining Field
- L-LT F L egacy Signal Field
- E H T (E x t r e me l y H i g h T h r o u g h p u t) S i g n a l F i e l d (E HT-S I G-A) arranged after the L—S I G in the frame;
- E HT-S I G-B A second E HT S i g n a l F i e l d (E HT-S I G-B) arranged immediately after the E H T—S I G—A in the frame;
- EHTS hort Raining Field located immediately after the EHT-S G-B in the frame and EHTL located immediately after the EHT-STF in the frame.
- EHT-LT F ong Training F ield
- the E HT_S I G_B includes a subfield indicating the number of spatial streams allocated to each of the one or more other communication devices that communicate with the communication device, and the total value of the number of spatial streams is greater than 8.
- FIG. 4 A flow chart showing the processing performed by 8.
- [6] shows an example of a 1 to 1 ⁇ frame structure 0 II to be used in the embodiments.
- FIG. 1 shows a configuration example of a wireless communication network in this embodiment.
- This wireless communication network consists of 1 ⁇ ⁇ ⁇ 8 0 2 .1 1 ⁇ 2020/175043 5 ⁇ (: 170? 2020 /004214
- V-chome 11 “ ⁇ 1_1911 1_
- Hachi-102 has the same function as 3-chome 103-105 except that it has a relay function, so it can be said to be a form of 3-chome.
- Three 8-chomes inside circle 101 which indicates the reach of the signal transmitted by Yao 102, can communicate with Yao 102. 1 02, according to a wireless communication method ⁇ Mimimi 802.1X 1 Snake 1 to 1 chome standard, communicates with each 3-chome eight 1 03-1 05.
- the 8102 can establish a wireless link through a connection process, such as an association process, which conforms to the standards of each of the three 8-103-105 and the 1Mimi 802.1 series. Wear.
- the configuration of the wireless communication network shown in Fig. 1 is merely an example for the purpose of explanation, and for example, a large number of Mitsumi devices and legacy devices (I Mitsumi £ 802.1 1 a/b/g/ n /a X communication network) may be configured. Further, the following discussion is applicable not only to the arrangement of each communication device shown in FIG. 1 but also to the positional relationship of various communication devices.
- FIG. 2 is a block diagram showing the functional configuration of the eight 102.
- the Hachi 102 has, as an example of its functional configuration, a wireless !_ 1 ⁇ 1 control unit 201, a frame generation unit 202, a signal analysis unit 203, and an II (user interface) control unit 204.
- the wireless !_ 1 ⁇ 1 control unit 201 includes one or more antennas 205 and circuits for transmitting/receiving wireless signals (wireless frames) to/from other wireless !_ 1 ⁇ 1 devices, and a circuit. It may be configured to include a program for controlling them.
- the wireless !_ 1 ⁇ ! control unit 201 executes the wireless communication control of the wireless !_ 8 based on the frame generated by the frame generation unit 202 according to the standard of ⁇ Mimi Sumi 802.1 series.
- the frame generation unit 202 receives the signal received by the wireless !_8! ⁇ 1 control unit 201. ⁇ 2020/175043 6 ⁇ (: 170? 2020 /004214
- the radio 1_1 ⁇ 1 control unit 201 On the other hand, on the basis of the result of the analysis performed by the signal analysis unit 203, the radio 1_1 ⁇ 1 control unit 201 generates a frame to be transmitted.
- the frame generation unit 202 may create a frame based on the analysis result by the signal analysis unit 203.
- the signal analysis unit 203 analyzes the signal received by the wireless !_ 1 ⁇ 1 control unit 201.
- the control unit 204 receives the operation of the input unit 300 (Fig. 3) by the user (not shown) of 8102 and transmits the control signal corresponding to the operation to each component. And output (including display) control to the output unit 300 (Fig. 3).
- FIG. 3 shows the hardware configuration of the eight hundred two in the present embodiment. Eight
- 102 is a storage unit 301, a control unit 302, a function unit 303, an input unit 304, an output unit 300, a communication unit 306, and It has one or more antennas 205.
- the storage unit 301 is [Equipped with both 1/8/1 and/or either one], and stores various information such as a program for performing various operations described below and communication parameters for wireless communication.
- various information such as a program for performing various operations described below and communication parameters for wireless communication.
- the storage unit 301 stores various information such as a program for performing various operations described below and communication parameters for wireless communication.
- Flexible disk hard disk, optical disk, magneto-optical disk,
- a storage medium such as a magnetic tape, a non-volatile memory card, or a mouth V 0 may be used.
- the control unit 302 is, for example, a processor such as ⁇ II or IV! II, VIII 3 I ⁇ (integrated circuit for a specific application), 003 (digital signal processor), VIII (field programmable gate). Array) etc. here, 0 2 controls the whole 8 10 2 by executing the program stored in the storage unit 3 0 1.
- the control unit 302 controls the entire 8102 by cooperating with the program stored in the storage unit 301 and ⁇ 3 ( ⁇ “1: I ⁇ 9 3 SOL 3 6 111 ). You may do so.
- control unit 3002 controls the function unit 300 to perform imaging, printing, projection, and the like. Execute a predetermined process.
- the functional unit 303 is hardware for the AP 102 to execute a predetermined process.
- the function unit 303 is an image pickup unit and performs an image pickup process.
- the functional unit 303 is a printing unit and performs print processing.
- the functional unit 303 is a projection unit and performs projection processing.
- the data processed by the functional unit 303 may be the data stored in the storage unit 301 or the data communicated with the STA or another AP via the communication unit 306 described later.
- the input unit 304 receives various operations from the user.
- the output unit 305 performs various outputs to the user.
- the output by the output unit 305 includes at least one of a display on a screen, a voice output from a speaker, a vibration output, and the like.
- both the input unit 304 and the output unit 305 may be realized by one module like a touch panel.
- the communication unit 206 controls wireless communication conforming to the IEEE 802.11 EHT standard, controlling wireless communication conforming to W i -F i, and controlling P (Internet Protocol) communication. Do it. Also, the communication unit 306 controls one or more antennas 205 to transmit and receive wireless signals for wireless communication. A P 102 communicates contents such as image data, document data, and video data with other communication devices via the communication unit 306.
- the functional configuration and hardware configuration of ST A 103 to 105 shall be the same as the functional configuration (Fig. 2) and hardware configuration (Fig. 3) of A P 102, respectively. That is, each of the STAs 103 to 105 has a wireless LAN control unit 201, a frame generation unit 202, a signal analysis unit 203, and a U control unit 204 as a functional configuration, and a storage unit 301 as a hardware configuration.
- the control unit 302, the function unit 303, the input unit 304, the output unit 305, the communication unit 306, and one or more antennas 205 can be configured.
- FIG. 4 shows a flow chart showing the processing carried out by 802.
- the flowchart shown in FIG. 4 can be realized by the control unit 302 of eight hundred and two executing the control program stored in the storage unit 301 to execute the calculation and processing of information and the control of each hardware.
- FIG. 5 shows a sequence chart of processing executed in the wireless communication system.
- 8 102 is 3 80 3 to 1 05, and 80% 80%
- the number of spatial streams for each 3 8 depends on the channel status received from each 3 8 Information (CS ⁇ (C hann e ⁇ 3 It can be determined in the signal analysis unit 203 based on the information on the reception status such as I 0 11)). Further, the number of spatial streams for each of the three units may be determined in advance in the wireless communication system, or may be determined by an operation of the input unit 304 by a user (not shown) in 8102.
- the eight 102 determines the communication parameters to be included in the radio frame to be transmitted, including the information regarding the spatial stream determined in 3402 and 502 and other parameters (information/value) (3403, 503). Then, 102 transmits the data to 3 hoes 10 3 to 10 5 in the form of a radio frame including the determined communication parameters and data (3404, 504).
- FIG. 6 shows an example of the PHY (physical) frame structure of the PPDU specified by the IEEE 802.11 EHT standard transmitted in S 404 and F 504.
- PP DU is an abbreviation for Physical Layer Protocol D ata U nit.
- L L egacy
- ST F Short Raining
- F ield 601
- L-LT F Long Raining F ield
- LS IG S ignal F ield
- the L-LT F 602 which is placed immediately after the L-ST F 601, is used for high-accuracy frequency/time synchronization and acquisition of propagation channel information (CS).
- the L_S G G 603 arranged immediately after the L-LT F 602 is used to transmit control information including information on the data transmission rate and the P HY frame length.
- Legacy devices conforming to the IEEE 802.1 1 a/b/g/n/a X standard decode the above-mentioned various legacy fields (LS TF 601, L-LT F 602, LS I G6 O 3) 0-evening It is possible.
- P P DU is further RL-S I G604, E HT after L- S I G603
- EH TS I G-A605 is located after LS I G603, EH TS I GB 6 06 is located immediately after E HT-S I G-A605, E HT-ST F 607 is E HT— SI G- B It is placed immediately after 606, and E HT- LT F 608 is placed immediately after EHT T_S TF 607.
- the field up to 608 is called the preamble.
- Figure 6 shows the IEEE Although the frame structure is shown to be backward compatible with the 802.11 standard a/b/g/n/ax standard, if backward compatibility is not required, L—ST F and L— The LTG field may be omitted. Alternatively, E HT- ST F may be stuffed with E HT- LT F.
- Fig. 7 shows the fields constituting the E HT-S G-B 606.
- the E HT- S I G-B 606 is composed of Common f i e I d 701 and U s er s p e c i f i c f i e l d 702.
- U s er s p e c i f i c f i e I d 702 is a concatenation of U s er B l o c k f i e l d 703, 704, and 705 corresponding to each subband of bandwidth 2 OMH z.
- Table 1 shows the subfields that make up the U s er B l o c k f i e ⁇ d and their descriptions.
- U serfield uses the format shown in Table 2 when transmitting with MU-MIMO to multiple users (ST A).
- Table 2 shows the description of the sub-field of U serfield when transmitting by MU-M MO.
- S pacial Co nfigurati ⁇ n indicates the number of spatial streams (spatial stream array) allocated with 6 bits and allocated to each STA.
- the maximum number of spatial streams of MU_M MO is 16 and the upper limit of the number of spatial streams (the number of antennas) of each STA is 4.
- the bit sequence of the S p a t i a I Con f i g u r a t i o n subfield indicates a list of the number of spatial streams allocated to each S T A at a particular S T A number.
- Fig. 8 shows an example of the correspondence diagram between the bit sequence of S p a t i a l Co n f i g u r a t i o n subfields and the number of streams of each S T A when the number of S T A is 6.
- each bit of the Spatial I Configuration Subfield (6 bits) is represented as B5B0 for the sake of explanation.
- the number of spatial streams allocated to the own STA can be calculated by knowing each STA that received the frame including the subfield, the correspondence diagram shown in FIG. 8 and the STA's doc D in the correspondence diagram. It is possible to detect from.
- the Spatial Configuration subfield when the Spatial Configuration subfield is “000000”, the number of spatial streams for all 6 STAs is 1 in all. Spatial Co nfig When the uration subfield is “01 1 001”, the number of streams of 6 STAs is 4, 4, 2, 2, 1, and 1, respectively. There are 54 spatial stream arrangements in all, but less than 54 when the number of STAs is less than 6. In other words, regardless of the number of STAs, the spatial stream array can represent all patterns with 6 bits. Although a detailed correspondence diagram is omitted, the same correspondence diagram can be created when the ST A number is other than 6.
- a subfield indicating the number of spatial streams allocated to each ST A in EH TS IG-B is secured by 4 bits or more, so that the total number of spatial streams is 8. Even if it is larger, the number of allocated space streams can be notified to each STA.
- the spatial stream array A mechanism is provided for including information in PPDUs. This enables the information of the spatial stream array to be communicated between AP and each STA.
- the number of users (STA) is 5
- the maximum number of spatial streams of MU-MIMO is 16
- the upper limit of the number of spatial streams (the number of antennas) of each STA is 8. ..
- the points different from the first embodiment will be described.
- Table 3 shows a description of the subfield of the U serfield in the EHT-S G-B 606 when transmitting with the MU-M G M B. Spacia IC onfiguration indicates the number of spatial streams (spatial stream array) allocated to each ST A with 8 bits secured. [Table 3]
- the maximum number of spatial streams of MU_M MO is 16 and the upper limit of the number of spatial streams (the number of antennas) of each STA is 4.
- the bit sequence of the S p a t i a I Con f i g u r a t i o n subfield indicates a list of the number of spatial streams allocated to each S T A at a particular S T A number.
- Figure 9 shows the correspondence diagram between the bit sequence of S p a t i a I Co n f i g u r a t i o n subfield and the number of streams of each S T A when the number of S T A is 8.
- each bit of the Spatial I Configuration Subfield (8 bits) is represented as B7B0 for the sake of explanation.
- N si indicates the number of antennas of the i-th STA, and it is assumed that the spatial stream is allocated so that “N si is N sj or more” is always satisfied for i> j.
- the number of users (3-8) is 5,
- a mechanism is provided to include the spatial stream array information in mouth II when the maximum number of spatial streams of I IV! ⁇ is 16 and the upper limit of the number of spatial streams (number of antennas) that each 3-8 has is 8 .. As a result, it becomes possible to communicate the information of the spatial stream arrangement between the eight and each of the three and eight.
- the present invention provides a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in the computer of the system or apparatus execute the program. It can also be realized by a process of reading and executing. It can also be realized by a circuit that realizes one or more functions (for example, 8 3 ⁇ ).
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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KR1020247023901A KR20240116567A (ko) | 2019-02-28 | 2020-02-05 | 통신 장치, 통신 장치의 제어 방법, 및 컴퓨터 프로그램 |
CN202410626681.6A CN118573338A (zh) | 2019-02-28 | 2020-02-05 | 通信设备、通信设备的控制方法及计算机可读存储介质 |
EP20763969.1A EP3934307A4 (en) | 2019-02-28 | 2020-02-05 | COMMUNICATION DEVICE, CONTROL METHOD FOR COMMUNICATION DEVICE AND PROGRAM |
KR1020217028957A KR20210122851A (ko) | 2019-02-28 | 2020-02-05 | 통신 장치, 통신 장치의 제어 방법, 및 프로그램 |
CN202080017351.7A CN113597783B (zh) | 2019-02-28 | 2020-02-05 | 通信设备、通信设备的控制方法及计算机可读存储介质 |
BR112021016415-4A BR112021016415A2 (pt) | 2019-02-28 | 2020-02-05 | Dispositivo de comunicação e método de controle de dispositivo de comunicação |
US17/409,839 US20210385110A1 (en) | 2019-02-28 | 2021-08-24 | Communication device, control method of communication device, and computer-readable storage medium |
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US11616547B2 (en) * | 2020-05-26 | 2023-03-28 | Mediatek Singapore Pte. Ltd. | Spatial configuration subfield designs of user field for MU-MIMO allocation in extreme-high-throughput systems |
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JP2018050133A (ja) | 2016-09-20 | 2018-03-29 | キヤノン株式会社 | 通信装置、制御方法、及びプログラム |
JP2019036403A (ja) | 2017-08-10 | 2019-03-07 | 株式会社ニューフレアテクノロジー | 画像取得装置の光学系調整方法 |
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EP3934307A4 (en) | 2022-11-16 |
EP3934307A1 (en) | 2022-01-05 |
US20210385110A1 (en) | 2021-12-09 |
CN113597783B (zh) | 2024-05-31 |
CN118573338A (zh) | 2024-08-30 |
BR112021016415A2 (pt) | 2021-10-13 |
JP2020141301A (ja) | 2020-09-03 |
CN113597783A (zh) | 2021-11-02 |
JP2023184728A (ja) | 2023-12-28 |
KR20210122851A (ko) | 2021-10-12 |
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