公开(公告)号：EP4391712A1

公开(公告)日：2024-06-26

申请号：EP21954182.8

申请日：2021-08-18

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  NAGATA, Kengo ,  SHINOHARA, Shoko ,  OTANI, Hanae ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W84/12 ,  H04W52/02

CPC分类号： Y02D30/70 ,  H04W52/02 ,  H04W84/12

摘要： A base station of an embodiment includes a first wireless signal processing unit, a second wireless signal processing unit, and a link management unit. The link management unit establishes a multi-link with a first wireless terminal apparatus using the first wireless signal processing unit and the second wireless signal processing unit. The link management unit is capable of setting at least the multi-link to a first operation mode and sets the first wireless signal processing unit and the second wireless signal processing unit to an intermittent operation mode in the first operation mode. When the multi-link is set to the first operation mode and first data addressed to the first wireless terminal apparatus is input, the link management unit causes at least one wireless signal processing unit associated with a traffic identifier attached to the first data to transmit a beacon signal including information indicating that the first data has been buffered.

公开(公告)号：EP4271081A1

公开(公告)日：2023-11-01

申请号：EP21914920.0

申请日：2021-03-24

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  NAGATA, Kengo ,  INOUE, Yasuhiko ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W72/04 ,  H04W28/04

摘要： A transmitting station (TX) according to an embodiment includes first and second wireless signal processing units (STA1 and STA2) and a link management unit (LM). The first and second wireless signal processing units are configured to be able to transmit wireless signals using first and second channels, respectively. The link management unit establishes multi-link with a receiving station by using the first and second wireless signal processing units. The link management unit is configured to be able to manage communication in which the multi-link are used and store first information (TBM) indicating a sequence number of transmission target data. When second information (RBM) indicating the sequence number of the data received by the receiving station is received from the receiving station via the first or second wireless signal processing unit, the link management unit sets a bit corresponding to the sequence number indicated by the second information in the first information as a transmitted bit.

公开(公告)号：EP4216454A1

公开(公告)日：2023-07-26

申请号：EP23162696.1

申请日：2013-02-04

申请人： Nippon Telegraph And Telephone Corporation

发明人： MURAKAMI, Tomoki ,  ASAI, Yusuke ,  KUDO, Riichi ,  ISHIHARA, Koichi ,  MIZOGUCHI, Masato ,  ICHIKAWA, Takeo

IPC分类号： H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W16/28

摘要： Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.

公开(公告)号：EP4192153A1

公开(公告)日：2023-06-07

申请号：EP20947700.9

申请日：2020-07-27

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  NAGATA, Kengo ,  INOUE, Yasuhiko ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W72/04 ,  H04W76/15 ,  H04W76/20 ,  H04W52/02

摘要： A base station (10) of the embodiment includes first and second wireless signal processing units (130, 140) and a link management unit (120). The first and second wireless signal processing units are configured to be able to transmit and receive wireless signals using first and second channels, respectively. The link management unit establishes a multi-link with a terminal apparatus using the first and second wireless signal processing units, sets the first wireless signal processing unit as a primary link used as a main link in the multi-link, and sets the second wireless signal processing unit to a secondary link as an auxiliary link in the multi-link. When the secondary link is in an active mode and a first condition is satisfied, the link management unit sets the secondary link to the operation pause mode. When the secondary link is in an operation pause mode and a second condition is satisfied, the link management unit sets the secondary link to the active mode.

公开(公告)号：EP4192147A1

公开(公告)日：2023-06-07

申请号：EP20946803.2

申请日：2020-07-27

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  NAGATA, Kengo ,  INOUE, Yasuhiko ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W72/04 ,  H04W84/12 ,  H04W52/02

摘要： According to an embodiment, a base station (10) includes first and second wireless signal processing units (130, 140) and a link management unit (120). The first wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a first channel. The second wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a second channel different from the first channel. The link management unit establish a multi-link with a terminal apparatus using the first and second wireless signal processing units. The link management unit sets the multi-link to a first or second state. In the first state, a first link in which the first wireless signal processing unit is used and a second link in which the second wireless signal processing unit is used are each in an active mode in which communication is possible. In the second state, the first link is in the active mode or an intermittent operation mode in which an operation is intermittent, and the second link is an operation pause mode in which power consumption is less than in the intermittent operation mode.

公开(公告)号：EP4090082A1

公开(公告)日：2022-11-16

申请号：EP20911599.7

申请日：2020-01-10

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  INOUE, Yasuhiko ,  NAGATA, Kengo ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W48/16 ,  H04W84/12

摘要： A terminal apparatus (20) according to an embodiment of the present disclosure includes a data processing unit (201) and a wireless signal processing unit (202). The data processing unit (201) generates a first frame including a requirement related to a latency during data communication and inquiring a base station (10) whether communication that satisfies the requirement is possible. The wireless signal processing unit (202) transmits the first frame.

公开(公告)号：EP2244500B1

公开(公告)日：2012-07-11

申请号：EP09710555.5

申请日：2009-02-05

申请人： Nippon Telegraph and Telephone Corporation

发明人： MASHINO, Jun ,  SUGIYAMA, Takatoshi ,  NISHIMORI, Kentaro ,  NAGATA, Kengo ,  ASAI, Yusuke

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04B1/7103 ,  H04W16/14

摘要： When a plurality of wireless communication systems use the same frequency channel, one terminal station cancels the interference waves from another base station. A wireless communication system comprises base stations, terminal stations, and an interference cancellation station installed at a different place therefrom of wireless communication systems (A, B). An interference cancellation station (ICS) includes a transmission-weight coefficient calculating means for calculating a transmission-weight coefficient (w2) and an interference cancelling data signal transmitting means for generating an interference cancelling data signal in which a data signal transmitted by a base station (BSb) of the wireless communication system (B) is multiplied by the transmission-weight coefficient (w2) and transmitting the interference cancelling data signal in synchronization with the timing at which the base station (BSb) of the wireless communication system (B) transmits the data signal. A terminal station (MSa) of the wireless communication system (A) cancels the interference from the base station (BSb) of the wireless communication system (B) and receives a data signal transmitted by a base station (BSa) of the wireless communication system (A).

公开(公告)号：EP4373155A3

公开(公告)日：2024-07-24

申请号：EP24168536.1

申请日：2020-01-10

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  INOUE, Yasuhiko ,  NAGATA, Kengo ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04B17/345 ,  H04B17/364 ,  G01R31/317 ,  H04L1/20 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/062

CPC分类号： H04B17/364 ,  H04B17/345 ,  H04L1/205 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/062 ,  H04W28/0236

摘要： A terminal apparatus (20) includes: a measurement unit (203) configured to measure at least one of a latency when a wireless signal is transmitted to a base station and a jitter of the wireless signal; a data processing unit (201) configured to generate information including a result of the measurement; and a wireless communication processing unit (202) configured to transmit the information to the base station.

公开(公告)号：EP4391666A1

公开(公告)日：2024-06-26

申请号：EP21954181.0

申请日：2021-08-18

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  NAGATA, Kengo ,  SHINOHARA, Shoko ,  OTANI, Hanae ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W56/00 ,  H04W72/04 ,  H04W84/12

CPC分类号： H04W72/04 ,  H04W56/00 ,  H04W84/12

摘要： A transmitting station which is a station that transmits a wireless signal includes a first wireless signal processing unit, a second wireless signal processing unit, and a transmission timing adjustment unit. The first wireless signal processing unit transmits and receives a wireless signal using a first channel. The second wireless signal processing unit transmits and receives a wireless signal using a second channel different from the first channel. The transmission timing adjustment unit adjusts transmission timings of first data and second data on the basis of a first status associated with the first wireless signal processing unit and a second status associated with the second wireless signal processing unit.

公开(公告)号：EP4329377A1

公开(公告)日：2024-02-28

申请号：EP21937813.0

申请日：2021-04-19

申请人： Nippon Telegraph And Telephone Corporation

发明人： KISHIDA, Akira ,  INOUE, Yasuhiko ,  NAGATA, Kengo ,  ASAI, Yusuke ,  TAKATORI, Yasushi

IPC分类号： H04W48/10

摘要： A base station (10) of an embodiment includes a first wireless signal processing unit (130), a second wireless signal processing unit (140), and a beacon management unit (122). The first wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a first channel. The second wireless signal processing unit is configured to be able to transmit and receive a wireless signal using a second channel different from the first channel. The beacon management unit manages transmission of a beacon of the first wireless signal processing unit so that the first beacon is periodically transmitted from the first radio signal processing unit, and manages transmission of a beacon of the second wireless signal processing unit so that the first beacon and a second beacon including information simplified than information included in the first beacon are periodically switched and transmitted from the second wireless signal processing unit.