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

US08446855B2 Access point, wireless communication station, wireless communication system and wireless communication method 有权
标题翻译：接入点，无线通信台，无线通信系统和无线通信方式
公开(公告)号：US08446855B2
公开(公告)日：2013-05-21
申请号：US12549662
申请日：2009-08-28
申请人： Kei Igarashi , Akira Yamada
发明人： Kei Igarashi , Akira Yamada
IPC分类号： H04B7/216
CPC分类号： H04W74/085 , H04W52/0216 , H04W76/27 , H04W88/08 , Y02D70/142
摘要： An access point for establishing wireless connection with one or more wireless communication stations which can perform intermittent reception operation, based on a packet transmission system which allocates wireless bands by CSMA/CA, has: unit for describing, in a same packet or in respective packets, buffering information on a downlink packet addressed to a subordinate wireless communication station currently in an intermittent reception state, and transmission prohibition period information indicating a period where transmission from the subordinate wireless communication station is prohibited; unit for transmitting the instruction described packet, in which the description has been made, to the subordinate wireless communication station; unit for making a state of the access point transit to a Doze state immediately after the instruction described packet is transmitted, or when a predetermined number of downlink packets are transmitted; and unit for making a state of the access point transit to an Awake state when the transmission prohibition period elapses from the time of transmission of the packet in which the prohibition period information is described.
摘要翻译：基于由CSMA / CA分配无线频带的分组传输系统，用于与可以执行间歇接收操作的一个或多个无线通信站建立无线连接的接入点具有：用于在相同分组或相应分组中描述的单元对当前处于间歇接收状态的下位无线通信站发送的下行链路分组的缓存信息以及表示从下级无线通信站发送的周期的发送禁止期间信息进行禁止的信息; 单元，用于将已经进行了描述的描述分组的指令发送到下级无线通信站; 在发送指示所述分组之后立即将接入点的状态转移到打盹状态的单元，或者当发送预定数量的下行链路分组时，以及当从描述禁止期间信息的分组的发送时间过去了传输禁止期间时，使接入点的状态转变为唤醒状态的单元。

2. 发明授权

US08310968B2 Access point, wireless communication station, wireless communication system and wireless communication method 有权
标题翻译：接入点，无线通信台，无线通信系统和无线通信方式
公开(公告)号：US08310968B2
公开(公告)日：2012-11-13
申请号：US12555312
申请日：2009-09-08
申请人： Kei Igarashi , Akira Yamada
发明人： Kei Igarashi , Akira Yamada
IPC分类号： G08C17/00
CPC分类号： H04W72/005 , H04W52/0232 , H04W76/27 , Y02D70/142 , Y02D70/24
摘要： The present invention implements an intermittent reception method with which a portable station that does not receive a multicast service does not enter the Awake state unnecessarily. A packet buffer portion buffers a received packet in such a memory as RAM and recording device, and judges whether the buffered packet is a multicast packet. When the packet buffer unit judges that the packet buffered by the packet buffer unit is a multicast packet, a DTIM beacon generation unit generates a DTIM beacon in which multicast notification data indicating that the multicast packet is buffered is set. A packet transmission unit transmits the DTIM beacon generated by the DTIM beacon generation unit to wireless communication stations or the like.
摘要翻译：本发明实现了不接收多播服务的便携式台不会不必要地进入唤醒状态的间歇接收方法。分组缓冲器部分将接收到的分组缓冲在诸如RAM和记录设备的存储器中，并且判断所缓冲的分组是否是多播分组。当分组缓冲器单元判断由分组缓冲器单元缓冲的分组是多播分组时，DTIM信标生成单元生成表示组播分组被缓存的多播通知数据的DTIM信标。分组发送单元将由DTIM信标生成单元生成的DTIM信标发送到无线通信站等。

3. 发明授权

US08144677B2 Wireless communication device and wireless communication method 有权
标题翻译：无线通信设备和无线通信方式
公开(公告)号：US08144677B2
公开(公告)日：2012-03-27
申请号：US12188786
申请日：2008-08-08
申请人： Kei Igarashi , Akira Yamada
发明人： Kei Igarashi , Akira Yamada
IPC分类号： H04W4/00
CPC分类号： H04L65/1059 , H04L65/80 , H04W28/20 , H04W52/0216 , H04W52/0219 , H04W72/1289 , Y02D70/142 , Y02D70/23
摘要： An object of the present invention is to realize a distributed autonomous transmission scheduling by using a terminal without the need to observe packets in relation to communication of other wireless terminals in a cell, such as VoIP, in which a plurality of wireless terminals that periodically transmit packets exist, thereby allowing intermittent reception during the packet observation and enabling to control power consumption of the wireless terminal as well as to reduce the load to thereby improve the communication quality. To attain the object, a VoIP terminal 100 recognizes and retains a scheduling table received by a wireless terminal that is connected to a wireless base station and that is not communicating with other wireless terminals, additionally writes terminal information of the terminal in the scheduling table at the start of communication of the terminal, and broadcasts the scheduling table.
摘要翻译：本发明的目的是通过使用终端来实现分布式自主传输调度，而不需要观察与诸如VoIP的小区中的其他无线终端的通信相关的分组，其中周期性地发送多个无线终端存在分组，从而允许在分组观察期间的间歇接收，并且能够控制无线终端的功率消耗以及减少负载从而提高通信质量。为了达到上述目的，VoIP终端100识别并保留由无线终端接收到的调度表，该无线终端与无线基站连接，不与其他无线终端进行通信，另外将终端的终端信息附加在调度表中终端的通信开始，并广播调度表。

4. 发明授权

US07697457B2 Wireless communication apparatus and wireless communication method 失效
标题翻译：无线通信装置和无线通信方法
公开(公告)号：US07697457B2
公开(公告)日：2010-04-13
申请号：US11522414
申请日：2006-09-18
申请人： Kei Igarashi , Akira Yamada , Atsushi Fujiwara
发明人： Kei Igarashi , Akira Yamada , Atsushi Fujiwara
IPC分类号： H04L12/28
CPC分类号： H04W72/10 , H04W76/10 , H04W84/18 , Y02D70/142 , Y02D70/22
摘要： A wireless communication apparatus comprises a transmission buffer configured to store packets addressed to one or more communication nodes in the network until a transmission timing; a requesting interval determination unit configured to determine a listen interval for each of the communication nodes based on the amount and/or the priority of packets accumulated in the transmission buffer; and a transmission unit configured to transmit a request frame to each of the communication nodes to request the communication nodes to receive a beacon from the wireless communication apparatus at the determined listen interval.
摘要翻译：无线通信装置包括发送缓冲器，被配置为存储寻址到网络中的一个或多个通信节点的分组，直到发送定时; 请求间隔确定单元，被配置为基于在发送缓冲器中累积的分组的数量和/或优先级来确定每个通信节点的监听间隔; 以及发送单元，被配置为向每个通信节点发送请求帧，以请求通信节点以所确定的监听间隔从无线通信装置接收信标。

5. 发明授权

US08363582B2 Wireless communication method, access point, wireless communication station and wireless communication system 失效
标题翻译：无线通信方式，接入点，无线通信台和无线通信系统
公开(公告)号：US08363582B2
公开(公告)日：2013-01-29
申请号：US12549927
申请日：2009-08-28
申请人： Kei Igarashi , Akira Yamada
发明人： Kei Igarashi , Akira Yamada
IPC分类号： G08C17/00 , H04L12/413
CPC分类号： H04W72/005 , H04W72/1278 , H04W74/0816 , H04W76/28
摘要： When a wireless communication station, which is about to communicate while intermittently receiving a multicast service, transmits, to an access point, a request packet describing information on the multicast service and an intermittent reception request, the access point describes, in a packet, intermittent reception timing information corresponding to the multicast service information described in this request packet, and replies with this packet to the wireless communication station. The wireless communication station reads the intermittent reception timing information from the received packet, and performs transition to the Awake state or the Doze state according to this intermittent reception timing. The access point, on the other hand, transmits the multicast packet to the wireless communication station according to the intermittent reception timing.
摘要翻译：当间歇地接收多播服务时要通信的无线通信站向接入点发送描述关于多播服务的信息的请求分组和间歇接收请求时，接入点在分组中描述间歇性与该请求分组中描述的多播服务信息相对应的接收定时信息，并且向该无线通信台回复该分组。无线通信站从接收到的分组中读取间歇接收定时信息，根据该间歇接收定时，进行到唤醒状态或打盹状态的切换。另一方面，接入点根据间歇接收定时将组播分组发送到无线通信台。

6. 发明授权

US08149864B2 Wireless communication terminal and wireless communication method 有权
标题翻译：无线通信终端和无线通信方式
公开(公告)号：US08149864B2
公开(公告)日：2012-04-03
申请号：US12709055
申请日：2010-02-19
申请人： Akira Yamada , Kei Igarashi , Takatoshi Sugiyama
发明人： Akira Yamada , Kei Igarashi , Takatoshi Sugiyama
IPC分类号： H04L12/413
CPC分类号： H04W72/1231 , H04W56/0015 , H04W56/0045 , H04W74/08 , H04W92/10
摘要： A communication terminal used in a mobile communication system complying with a carrier sense multiple access scheme is disclosed. The communication terminal includes: a receiving unit configured to receive a wireless packet transmitted by another communication terminal or a base station; a determination unit configured to determine periodic transmission timing of the communication terminal based on determination criterion information included in the wireless packet; and a transmission unit configured to periodically transmit wireless packets to the base station based on the transmission timing.
摘要翻译：公开了一种在符合载波侦听多路访问方案的移动通信系统中使用的通信终端。通信终端包括：接收单元，被配置为接收由另一通信终端或基站发送的无线分组; 确定单元，被配置为基于包括在所述无线分组中的确定标准信息来确定所述通信终端的周期性传输定时; 以及发送单元，被配置为基于所述发送定时周期性地向所述基站发送无线分组。

7. 发明申请

US20100080162A1 WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION STATION, ACCESS POINT AND WIRELESS COMMUNICATION METHOD 审中-公开
标题翻译：无线通信系统，无线通信站，接入点和无线通信方法
公开(公告)号：US20100080162A1
公开(公告)日：2010-04-01
申请号：US12563606
申请日：2009-09-21
申请人： Kei Igarashi , Akira Yamada
发明人： Kei Igarashi , Akira Yamada
IPC分类号： H04W72/04 , H04L12/413 , H04H20/71
CPC分类号： H04L12/1877 , H04L12/189
摘要： An object of the present invention is to suppress quality deterioration of a multicast packet due to transmission delay jitter. An access point comprises: a received packet analysis unit which extracts, from a packet transmitted from a wireless communication station, identification information for identifying a wireless communication station, MC reception information to indicate whether the wireless communication station receives a multicast packet or not, and communication operation information to indicate whether the communication operation of the wireless communication station is set to PS mode or not; an STA table management unit which generates an STA table associating the extracted identification information, MC reception information and communication operation information, and stores this STA table in a memory; and a packet transmission timing control unit which controls a transmission timing of the multicast packet based on the STA table stored in the memory.
摘要翻译：本发明的目的是抑制由于传输延迟抖动导致的多播分组的质量恶化。接入点包括：接收分组分析单元，从从无线通信站发送的分组中提取用于识别无线通信站的识别信息，用于指示无线通信站是否接收到多播分组的MC接收信息;以及用于指示无线通信站的通信操作是否被设置为PS模式的通信操作信息; STA表管理单元，其生成将提取的识别信息，MC接收信息和通信操作信息相关联的STA表，并将该STA表存储在存储器中; 以及分组发送定时控制单元，其基于存储在存储器中的STA表来控制多播分组的发送定时。

8. 发明申请

US20070183326A1 WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信设备和无线通信方法
公开(公告)号：US20070183326A1
公开(公告)日：2007-08-09
申请号：US11671280
申请日：2007-02-05
申请人： Kei Igarashi , Akira Yamada , Atsushi Fujiwara , Takatoshi Sugiyama
发明人： Kei Igarashi , Akira Yamada , Atsushi Fujiwara , Takatoshi Sugiyama
IPC分类号： H04L12/26 , H04J1/16
CPC分类号： H04W72/1221 , H04L1/1887 , H04L65/80 , H04W28/18 , H04W74/085
摘要： A wireless communication device that performs packet transmission in accordance with a packet transmission system that performs wireless bandwidth allocation by virtual carrier sensing has a time-point management section that manages the time-point and outputs current time-point information, and a parameter management section that manages a parameter relating to packet transmission right acquisition priority. The parameter management section includes: a parameter holding section that holds, in association with a time-point, a parameter relating to packet transmission right acquisition priority that changes with a different distribution between wireless communication devices located in the same wireless LAN area, in a prescribed period; and a parameter alteration section that reads, from the parameter holding section, the parameter associated with current time-point information and dynamically alters a current parameter relating to packet transmission right acquisition priority in accordance with the parameter thus read.
摘要翻译：根据通过虚拟载波侦听执行无线带宽分配的分组传输系统执行分组传输的无线通信装置具有管理时间点并输出当前时间点信息的时间点管理部分，以及参数管理部分管理与分组传输权获取优先级相关的参数。参数管理部分包括：参数保持部分，其在时间点中保持与位于同一无线LAN区域中的无线通信设备之间以不同分布发生变化的分组发送权获取优先级相关的参数，规定期限以及参数修改部，其从参数保持部读取与当前时间点信息相关联的参数，并且根据所读取的参数动态地改变与分组发送权获取优先级有关的当前参数。

9. 发明授权

US08165051B2 Radio terminal, radio communication system, and radio communication method 有权
标题翻译：无线电终端，无线电通信系统和无线电通信方法
公开(公告)号：US08165051B2
公开(公告)日：2012-04-24
申请号：US12424074
申请日：2009-04-15
申请人： Imad Aad , Luis Loyola , Joerg Widmer , Kei Igarashi , Akira Yamada
发明人： Imad Aad , Luis Loyola , Joerg Widmer , Kei Igarashi , Akira Yamada
IPC分类号： G08C17/00 , H04B7/185
CPC分类号： H04W52/0235 , H04W52/0216 , Y02D70/142 , Y02D70/22
摘要： A radio terminal includes a radio interface configured to allow radio communication with a radio base station, and a controller configured to control switching between a wake-up state in which the radio interface is turned on and a sleep state in which the radio interface is turned off. The radio terminal acquires a reference wake-up timing scheduled as a wake-up timing for switching from the sleep state to the wake-up state. The controller shifts the wake-up timing from the reference wake-up timing.
摘要翻译：无线终端包括：无线接口，被配置为允许与无线基站的无线通信;以及控制器，被配置为控制在其中接收无线接口的唤醒状态与无线接口转向的睡眠状态之间的切换关闭无线终端取得调度为从休眠状态切换到唤醒状态的唤醒定时的基准唤醒定时。控制器将唤醒定时从参考唤醒定时中移位。

10. 发明授权

US08054852B2 Wireless communication terminal and wireless communication method 有权
标题翻译：无线通信终端和无线通信方式
公开(公告)号：US08054852B2
公开(公告)日：2011-11-08
申请号：US11679382
申请日：2007-02-27
申请人： Akira Yamada , Kei Igarashi , Takatoshi Sugiyama
发明人： Akira Yamada , Kei Igarashi , Takatoshi Sugiyama
IPC分类号： H04L12/413
CPC分类号： H04W72/1231 , H04W56/0015 , H04W56/0045 , H04W74/08 , H04W92/10
摘要： A communication terminal used in a mobile communication system complying with a carrier sense multiple access scheme is disclosed. The communication terminal includes: a receiving unit configured to receive a wireless packet transmitted by another communication terminal or a base station; a determination unit configured to determine periodic transmission timing of the communication terminal based on determination criterion information included in the wireless packet; and a transmission unit configured to periodically transmit wireless packets to the base station based on the transmission timing.
摘要翻译：公开了一种在符合载波侦听多路访问方案的移动通信系统中使用的通信终端。通信终端包括：接收单元，被配置为接收由另一通信终端或基站发送的无线分组; 确定单元，被配置为基于包括在所述无线分组中的确定标准信息来确定所述通信终端的周期性传输定时; 以及发送单元，被配置为基于所述发送定时周期性地向所述基站发送无线分组。

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