专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11026262B2 Wireless communication system and wireless communication method 有权
公开(公告)号：US11026262B2
公开(公告)日：2021-06-01
申请号：US15747612
申请日：2016-08-15
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Riichi Kudo , Hirantha Sithira Abeysekera , Munehiro Matsui , Shoko Shinohara , Yasushi Takatori , Takeo Ichikawa , Masato Mizoguchi
IPC分类号： H04W74/08 , H04W72/14 , H04W72/08 , H04W84/12 , H04W74/04 , H04W72/12
摘要： Provided is a wireless communication system in which, based on a random access scheme, a transmission opportunity (TXOP) acquired by a wireless access point is granted to a wireless station when performing uplink data transmission from the wireless station to the wireless access point and the TXOP acquired by the wireless station is granted to the wireless access point when performing downlink data transmission from the wireless access point to the wireless station, the system includes a scheduling unit for TXOP granting determining one or more wireless stations having a quality of an uplink data transmission lower than a prescribed value as TXOP responders to which the wireless access point grants the TXOP, and determining one or more wireless stations having a quality of a downlink data transmission lower than the prescribed value as TXOP holders which grant the TXOP to the wireless access point.

2. 发明授权

US10778296B2 Wireless signal transmitting method and wireless apparatus 有权
公开(公告)号：US10778296B2
公开(公告)日：2020-09-15
申请号：US16596729
申请日：2019-10-08
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tomoki Murakami , Yusuke Asai , Riichi Kudo , Koichi Ishihara , Masato Mizoguchi , Takeo Ichikawa
IPC分类号： H04B7/0452 , H04J11/00 , H04L5/00 , H04L27/26 , H04W28/16 , H04B7/024 , H04B7/06 , H04B7/0456 , H04W88/08
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.

3. 发明授权

US09923678B2 Wireless communication system, and wireless communication method 有权
公开(公告)号：US09923678B2
公开(公告)日：2018-03-20
申请号：US14414837
申请日：2013-07-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirantha Sithira Abeysekera , Yasuhiko Inoue , Yusuke Asai , Shoko Shinohara , Takeo Ichikawa , Masato Mizoguchi
IPC分类号： H04W4/00 , H04L5/00 , H04W72/04 , H04J11/00 , H04W84/12 , H04B7/0413
CPC分类号： H04L5/0007 , H04B7/0413 , H04J11/005 , H04J11/0063 , H04L5/001 , H04L5/0023 , H04L5/0044 , H04L5/0098 , H04W72/04 , H04W84/12
摘要： There is provided a wireless communication system which can improve throughputs in wireless communication by effectively using frequency resources. In the wireless communication system including a plurality of wireless communication stations which may operate as wireless communication terminals or wireless base stations, the wireless communication station includes an access right acquisition means of acquiring an access right upon generating transmitting data; a determination means of determining whether or not different data destined to a plurality of wireless communication stations can be transmitted on different channels according to OFDMA; and a data transmitting means of transmitting data to the receivable wireless communication stations using OFDMA when the determination means determines that different data destined to a plurality of wireless communication stations can be transmitted on different channels.

4. 发明申请

US20150172012A1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信系统和无线通信方法
公开(公告)号：US20150172012A1
公开(公告)日：2015-06-18
申请号：US14414995
申请日：2013-07-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirantha Sithira Abeysekera , Yasuhiko Inoue , Yusuke Asai , Shoko Shinohara , Takeo Ichikawa , Masato Mizoguchi
IPC分类号： H04L5/00 , H04W72/04 , H04J11/00
CPC分类号： H04L5/0007 , H04J1/00 , H04J11/00 , H04J11/005 , H04J11/0063 , H04L1/18 , H04L1/1854 , H04L5/0023 , H04L5/0032 , H04L5/0035 , H04L5/0087 , H04L5/0098 , H04L27/0006 , H04W16/14 , H04W28/16 , H04W72/0426 , H04W74/0808
摘要： In order to provide a wireless communication system capable of improving the throughput of wireless communication by effectively using frequency resources, in a wireless communication system in which a first wireless access point which communicates with one or more wireless stations within a first cell by orthogonal frequency-division multiple access and a second wireless access point which is capable of performing carrier sensing with the first wireless access point and communicates with one or more wireless stations within a second cell by the orthogonal frequency-division multiple access operate in cooperation with each other, the first wireless access point includes a transmission opportunity acquiring unit which acquires a transmission opportunity when data to be transmitted is generated; and a transmitting unit of permission for use which transmits permission for use of channels which are not scheduled to use within the first cell, to the second wireless access point in a period in which the transmission opportunity is acquired, and the second wireless access point includes a communication unit which communicates with the wireless station within the second cell via the channel in which the permission for use is acquired from the first wireless access point.
摘要翻译：为了提供一种能够通过有效利用频率资源来提高无线通信的吞吐量的无线通信系统，在无线通信系统中，在无线通信系统中，通过正交频分复用方式与第一小区内的一个或多个无线站进行通信，能够与第一无线接入点进行载波侦听的第二无线接入点和通过正交频分多址的第二小区内的一个或多个无线站进行协作操作的第二无线接入点，第一无线接入点包括发送机会获取单元，其在生成要发送的数据时获取发送机会; 以及在获取发送机会的时段内向第二无线接入点发送允许使用未被调度用于第一小区的信道的使用许可的发送单元，并且第二无线接入点包括通信单元，其经由其中从第一无线接入点获取使用许可的信道与第二小区内的无线站进行通信。

5. 发明授权

US10602367B2 Wireless communication apparatus, wireless communication system, and wireless communication method 有权
公开(公告)号：US10602367B2
公开(公告)日：2020-03-24
申请号：US14441055
申请日：2013-11-12
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirantha Sithira Abeysekera , Koichi Ishihara , Yasuhiko Inoue , Yusuke Asai , Yasushi Takatori , Takeo Ichikawa , Masato Mizoguchi , Munehiro Matsui
IPC分类号： H04W16/14 , H04W24/02 , H04W72/04 , H04W84/12 , H04W88/08
摘要： A wireless communication apparatus is provided that is capable of performing setting of a wireless LAN access point so that frequency utilization efficiency of an entire wireless communication system that includes wireless LAN access points of different manufacturers and different model numbers is improved. A wireless communication system which performs setting necessary for a wireless LAN access point constituting a wireless communication network to operate includes: an information collection unit which collects setting information set in the wireless LAN access point and wireless environment information in the wireless LAN access point, a parameter calculation unit which obtains a parameter to be set for the wireless LAN access point, which is a collection source, based on the collected setting information and the collected wireless environment information, and a parameter setting unit which transmits the obtained parameter to the wireless LAN access point, which is a collection source, over a network and performs setting of the parameter.

6. 发明授权

US10158402B2 Wireless signal transmitting method and wireless apparatus 有权
公开(公告)号：US10158402B2
公开(公告)日：2018-12-18
申请号：US15850120
申请日：2017-12-21
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tomoki Murakami , Yusuke Asai , Riichi Kudo , Koichi Ishihara , Masato Mizoguchi , Takeo Ichikawa
IPC分类号： H04B7/0452 , H04W28/16 , H04B7/024 , H04B7/06 , H04B7/0456 , H04W88/08 , H04J11/00 , H04L5/00 , H04L27/26
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.

7. 发明授权

US09998262B2 Wireless communication system and wireless communication method 有权
公开(公告)号：US09998262B2
公开(公告)日：2018-06-12
申请号：US14414995
申请日：2013-07-19
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Hirantha Sithira Abeysekera , Yasuhiko Inoue , Yusuke Asai , Shoko Shinohara , Takeo Ichikawa , Masato Mizoguchi
IPC分类号： H04W4/00 , H04L5/00 , H04J1/00 , H04J11/00 , H04W16/14 , H04W72/04 , H04L27/00 , H04L1/18 , H04W28/16 , H04W74/08
CPC分类号： H04L5/0007 , H04J1/00 , H04J11/00 , H04J11/005 , H04J11/0063 , H04L1/18 , H04L1/1854 , H04L5/0023 , H04L5/0032 , H04L5/0035 , H04L5/0087 , H04L5/0098 , H04L27/0006 , H04W16/14 , H04W28/16 , H04W72/0426 , H04W74/0808
摘要： In order to provide a wireless communication system capable of improving the throughput of wireless communication by effectively using frequency resources, in a wireless communication system in which a first wireless access point which communicates with one or more wireless stations within a first cell by orthogonal frequency-division multiple access and a second wireless access point which is capable of performing carrier sensing with the first wireless access point and communicates with one or more wireless stations within a second cell by the orthogonal frequency-division multiple access operate in cooperation with each other, the first wireless access point includes a transmission opportunity acquiring unit which acquires a transmission opportunity when data to be transmitted is generated; and a transmitting unit of permission for use which transmits permission for use of channels which are not scheduled to use within the first cell, to the second wireless access point in a period in which the transmission opportunity is acquired, and the second wireless access point includes a communication unit which communicates with the wireless station within the second cell via the channel in which the permission for use is acquired from the first wireless access point.

8. 发明授权

US09882614B2 Wireless signal transmitting method and wireless apparatus 有权
公开(公告)号：US09882614B2
公开(公告)日：2018-01-30
申请号：US14375037
申请日：2013-02-04
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tomoki Murakami , Yusuke Asai , Riichi Kudo , Koichi Ishihara , Masato Mizoguchi , Takeo Ichikawa
IPC分类号： H04B7/04 , H04B7/0452 , H04W28/16 , H04B7/024 , H04B7/06 , H04B7/0456 , H04W88/08 , H04J11/00 , H04L5/00 , H04L27/26
CPC分类号： H04B7/0452 , H04B7/024 , H04B7/0456 , H04B7/0617 , H04J11/0053 , H04L5/0035 , H04L5/005 , H04L27/2613 , H04L27/2626 , H04W28/16 , H04W88/08
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.

9. 发明申请

US20140328280A1 Radio Communication Method, Radio Communication System, Radio Base Station, and Radio Terminal Station 审中-公开
标题翻译：无线电通信方法，无线电通信系统，无线电基站和无线电终端站
公开(公告)号：US20140328280A1
公开(公告)日：2014-11-06
申请号：US14334288
申请日：2014-07-17
申请人： Nippon Telegraph and Telephone Corporation
发明人： Tomoki Murakami , Takeo Ichikawa , Riichi Kudo , Yasushi Takatori , Masato Mizoguchi , Takefumi Hiraguri , Kentaro Nishimori
IPC分类号： H04W72/04 , H04B7/04
CPC分类号： H04W72/0453 , H04B7/024 , H04B7/0452 , H04B7/0617 , H04B7/0697 , H04B17/318 , H04B17/382 , H04W72/046 , H04W72/082
摘要： This radio communication method is used to perform spatial multiplexing communication between cells in the overlap cell environment. In the MU-MIMO overlap cell environment, when a null is formed between a radio base station and a radio terminal station belonging to different cells, a first set of a “call signal” and a “response signal” is used to perform mutual detection with the radio base station and the radio terminal station belonging to different cells, and then a null is formed so as not to cause interference of radio waves between the radio base station and the radio terminal station belonging to different cells. At this time, the addresses of the radio base station and the radio terminal station are used to discriminate whether the radio base station and the radio terminal station belong to the same cell or different cells.
摘要翻译：该无线通信方法用于在重叠小区环境中进行小区间的空间复用通信。在MU-MIMO重叠小区环境中，当在无线基站和属于不同小区的无线终端站之间形成空值时，使用第一组“呼叫信号”和“响应信号”进行相互检测无线电基站和无线电终端站属于不同的小区，然后形成一个零点，以免引起无线电基站和属于不同小区的无线电终端站之间的无线电波的干扰。此时，无线基站和无线终端站的地址用于区分无线基站和无线终端站是否属于同一小区或不同的小区。

10. 发明授权

US11509362B2 Wireless signal transmitting method and wireless apparatus 有权
公开(公告)号：US11509362B2
公开(公告)日：2022-11-22
申请号：US17306084
申请日：2021-05-03
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Tomoki Murakami , Yusuke Asai , Riichi Kudo , Koichi Ishihara , Masato Mizoguchi , Takeo Ichikawa
IPC分类号： H04B7/0452 , H04J11/00 , H04L5/00 , H04L27/26 , H04W28/16 , H04B7/024 , H04B7/06 , H04B7/0456 , H04W88/08
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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式