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    • 22. 发明申请
    • Method for transmitting data stream via wireless medium and a wireless network
    • 用于经由无线介质和无线网络发送数据流的方法
    • US20060099956A1
    • 2006-05-11
    • US10541748
    • 2004-01-09
    • Yasuo HaradaKazuhiro AndoChalermphol ApichaichalermwongsePek TanWei LimRahul Malik
    • Yasuo HaradaKazuhiro AndoChalermphol ApichaichalermwongsePek TanWei LimRahul Malik
    • H04Q7/20
    • H04W74/02H04W28/26H04W84/12
    • The present invention provides a method for transmitting data stream via wireless medium for contention based medium access across a wireless network having a plurality of stations and an access point communicating to the stations via wireless medium. The method includes: (i) transmitting data stream from the station according to prescheduled wireless medium occupancy reservation for the station within only prescheduled medium occupancy period of a selective contention period; (ii) performing a contention between the stations for wireless medium occupancy for a contention successful station to transmit data stream within only contention medium occupancy period of the selective contention period; (iii) transmitting data stream from the contention successful station after the contention; and (iv) prescheduling a wireless medium occupancy reservation for the contention successful station to transmit within a prescheduled medium occupancy period of next selective contention period.
    • 本发明提供了一种用于经由无线介质发送数据流的方法,用于跨越具有多个站的无线网络和经由无线介质与站通信的接入点进行基于争用的媒体接入。 该方法包括:(i)根据预选择的无线媒体占用预留从台站发送数据流,仅在选择性争用期的预定中间占用期间内; (ii)在争用成功站之间进行无线媒体占用的站之间的争用,以在所述选择性竞争期间的竞争媒体占用期间内仅发送数据流; (iii)在争用后从竞争成功站发送数据流; 以及(iv)预先规定争用成功站的无线媒体占用预约,以在下一个选择性竞争时段的预先设定的媒体占用期限内进行发送。
    • 24. 发明授权
    • Telemeter telecontrol system
    • 电报遥控系统
    • US6111872A
    • 2000-08-29
    • US608548
    • 1996-02-28
    • Takayuki SuematsuHiroyuki ImaiKazuhiro AndoShinichiro Ohmi
    • Takayuki SuematsuHiroyuki ImaiKazuhiro AndoShinichiro Ohmi
    • H04Q9/04H04Q9/00
    • H04Q9/04
    • A master station performing continuous operations is communicatively coupled with a plurality of remote stations performing intermittent transmission/receiving operations in constant cycles. Control units of the remote stations control radio communication devices to transmit synchronizing signals to the master station in constant cycles respectively. When the synchronizing signals are received from the remote stations, a control unit of the master station acquires information of corresponding intermittent receiving timing from a memory device, and controls a radio communication device to perform transmitting operations to the remote stations in coincidence with the intermittent receiving timing. Further, the control unit of the master station reads random number values from a random number generator in re-transmission of data, and shifts data transmission timing from original timing by time corresponding to the random number values. On the other hand, the control units of the remote stations read random number values from random number generators in re-receiving of the data, and shift data receiving timing from original timing by time corresponding to the random number values. Thus, the data collision probability is reduced.
    • 执行连续操作的主站与以多个周期执行间歇发送/接收操作的多个远程站通信耦合。 远程站的控制单元控制无线电通信设备,以恒定周期将同步信号发送到主站。 当从远程站接收到同步信号时,主站的控制单元从存储装置获取对应的间歇接收定时的信息,并且控制无线电通信装置与间歇接收一致地向远程站发送操作 定时。 此外,主站的控制单元在重新发送数据时从随机数发生器读取随机数值,并且从与原始定时相对应的随机数值的时间移位数据发送定时。 另一方面,远程站的控制单元在重新接收数据时从随机数发生器读取随机数值,并且从与原始定时相对应的随机数值的时间移位数据接收定时。 因此,数据冲突概率降低。
    • 27. 发明申请
    • SIGNAL DETECTION DEVICE AND SIGNAL DETECTION METHOD
    • 信号检测装置和信号检测方法
    • US20130148766A1
    • 2013-06-13
    • US13817668
    • 2012-03-07
    • Yoshio UrabeKazuhiro AndoMasataka IrieHiroshi Takahashi
    • Yoshio UrabeKazuhiro AndoMasataka IrieHiroshi Takahashi
    • H04L27/26
    • H04L27/2649H04B7/0828H04B17/327
    • In this signal detection device (100), a delaying unit (101) delays a first distributed signal or a second distributed signal distributed from a received signal for a period of time of T1 to form a first multiplication signal, and delays the one for a period of time of T2 (T2>T1) to form a second multiplication signal. An integrator (104) calculates a first correlation value by integrating the result of multiplying the first distributed signal and the first multiplication signal. An integrator (105) calculates a second correlation value by integrating the result of multiplying the second distributed signal and the second multiplication signal. An evaluation unit (108) evaluates whether the signal to be detected, which is a periodic signal with a period of T1 or a periodic signal with a period of T2, exists or not, on the basis of the first correlation value and the second correlation value.
    • 在该信号检测装置(100)中,延迟单元(101)将从接收信号分配的第一分布信号或第二分布信号延迟T1的时间段,以形成第一乘法信号,并将其延迟 T2(T2> T1)的时间段,形成第二个乘法信号。 积分器(104)通过对乘以第一分布式信号和第一乘法信号的结果进行积分来计算第一相关值。 积分器(105)通过对乘以第二分布信号和第二乘法信号的结果进行积分来计算第二相关值。 评估单元(108)基于第一相关值和第二相关性来评估是否存在周期为T1的周期信号或周期为T2的周期信号的被检测信号是否存在 值。
    • 29. 发明申请
    • COMMUNICATION METHOD
    • 通信方法
    • US20120106427A1
    • 2012-05-03
    • US13124223
    • 2010-07-22
    • Hironori NakaeKazuhiro AndoKunihiko Sakaibara
    • Hironori NakaeKazuhiro AndoKunihiko Sakaibara
    • H04W4/06
    • H04W4/08H04L12/1868H04W4/06H04W8/186H04W72/121H04W72/1242
    • Provided is a communication method for improving the communication quality of multicast transmission. A grouping table storage section stores a grouping table in which Ack return order positions indicating priority orders of the reception terminals which each return an Ack, and addresses of the reception terminals are set. An Ack return order position notification frame creation section notifies each reception terminal of a corresponding Ack return order position based on the grouping table. An Ack return permission information determination section refers to the grouping table, determines the number of reception terminal that are to be permitted to return an Ack, and creates Ack return permission information in which information about the reception terminals that are to be permitted to return an Ack is set, based on the determined number of reception terminals. A multicast creation section creates a multicast containing the Ack return permission information and transmission data.
    • 提供了一种用于提高组播传输的通信质量的通信方法。 分组表存储部分存储分配表,其中Ack返回顺序位置指示各自返回Ack的接收终端的优先顺序,并且设置接收终端的地址。 Ack返回订单位置通知帧创建部分基于分组表向每个接收终端通知相应的Ack返回订单位置。 Ack返回许可信息确定部分参考分组表,确定要被允许返回Ack的接收终端的数量,并且创建Ack返回许可信息,其中关于将允许返回的接收终端的信息 基于确定的接收终端数量来设置Ack。 多播创建部分创建包含Ack返回许可信息和传输数据的多播。
    • 30. 发明授权
    • Wireless communication apparatus and wireless communication method
    • 无线通信装置和无线通信方法
    • US08040837B2
    • 2011-10-18
    • US11916884
    • 2006-06-08
    • Yoshio UrabeKenji MiyanagaKazuhiro AndoChalermphol ApichaichalermwongseTsutomu Mukai
    • Yoshio UrabeKenji MiyanagaKazuhiro AndoChalermphol ApichaichalermwongseTsutomu Mukai
    • H04Q7/00
    • H04W74/0808H04W56/002H04W72/1205
    • When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station. Preferably, when the first wireless station having a concurrent transmission control function communicates with the second wireless station having a interference reduction function, the first wireless station controls the interference reduction function of the second wireless station based on the link-related information received from the second wireless station and interference information, such that the transmission link from the third wireless station to the fourth wireless station and the transmission link from the first wireless station to the second wireless station can be established at the same time without interference with each other. If judging that the concurrent transmission is available, the first wireless station transmits a signal to the second wireless station according to a timing that overlaps transmission of a signal from the third wireless station to the fourth wireless station.
    • 当与第二无线站通信时,第一无线站基于从第二无线站接收到的链路相关信息和从由第四无线站发送的信号提取的链路相关信息来判断来自第三无线站的传输链路 可以同时建立到第四无线站的站和从第一无线站到第二无线站的传输链路,而不会彼此干扰。 如果肯定地判断,则第一无线站与第三无线站向第四无线站发送的信号同步地向第二无线站发送信号。 优选地,当具有并发传输控制功能的第一无线站与具有干扰减少功能的第二无线站通信时,第一无线站基于从第二无线站接收到的链路相关信息来控制第二无线站的干扰减少功能 无线站和干扰信息,使得可以同时建立从第三无线站到第四无线站的传输链路和从第一无线站到第二无线站的传输链路,而不会彼此干扰。 如果判断并发传输可用,则第一无线站根据与从第三无线站到第四无线站的信号的传输重叠的定时向第二无线站发送信号。