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。

公开(公告)号：US20090257368A1

公开(公告)日：2009-10-15

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： G08C17/02

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。

公开(公告)号：US20090257369A1

公开(公告)日：2009-10-15

申请号：US12424126

申请日：2009-04-15

申请人： Kei Igarashi ,  Akira Yamada ,  Luis Loyola ,  Imad Aad ,  Joerg Widmer

发明人： Kei Igarashi ,  Akira Yamada ,  Luis Loyola ,  Imad Aad ,  Joerg Widmer

IPC分类号： G08C17/02

CPC分类号： H04W52/0261 ,  H04W52/0219 ,  Y02D70/142

摘要： A radio terminal includes: a controller configured to control switching between a wake-up state in which a radio interface is turned on and a sleep-state in which the radio interface if turned off; a battery configured to accumulate electric power to be supplied to the radio interface; a remaining battery amount acquiring unit configured to acquiring a remaining battery amount being a remaining amount of electric power accumulated in the battery. The controller performs switching from the sleep state to the wake-up state, according to a communication order where own radio terminal performs radio communication. The own-terminal communication order is scheduled based on the remaining battery amount.

摘要翻译： 无线终端包括：控制器，被配置为控制无线接口接通的唤醒状态与关闭无线接口的睡眠状态之间的切换; 电池，被配置为累积要供给到所述无线电接口的电力; 剩余电池量获取单元，被配置为获取作为蓄积在电池中的剩余电量的剩余电池量。 根据其无线电终端执行无线电通信的通信顺序，控制器执行从睡眠状态到唤醒状态的切换。 基于剩余电池量来安排自己的终端通信顺序。

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。

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。

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。

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。

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。

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。

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。