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    Method of wireless communication between base station and mobile station and multiple access communication system
    1.
    发明授权
    Method of wireless communication between base station and mobile station and multiple access communication system 失效
    基站与移动台和多址通信系统之间的无线通信方法

    公开(公告)号：US5537414A

    公开(公告)日：1996-07-16

    申请号：US87080

    申请日：1993-07-07

    申请人： Yoshihiro Takiyasu ,  Eiichi Amada ,  Hidehiko Jusa ,  Tomoaki Ishifuji ,  Shuichi Adachi ,  Genichi Ishii

    发明人： Yoshihiro Takiyasu ,  Eiichi Amada ,  Hidehiko Jusa ,  Tomoaki Ishifuji ,  Shuichi Adachi ,  Genichi Ishii

    IPC分类号： H04Q7/38 ,  H04B7/26 ,  H04J3/16 ,  H04L12/28 ,  H04Q1/30 ,  H04Q3/58

    CPC分类号： H04B7/2656 ,  H04J3/1694

    摘要： In a communication system having a base station for controlling a transmission right and a plurality of substations, a substation having data to be transmitted transmits the number of necessary fragments and its address to a request field of a communication frame. The base station uses a plurality pair of fragment slots and reply slots following the request field in the communication frame to transmit an address of a substation permitted to transmit data, to each fragment slot. The substation permitted to transmit data transmits the address of a destination substation and the data to a predetermined field following the address in one fragment slot. The destination station transmits a reply signal indicating the reception state of the data to the reply slot paired with the fragment slot. If the base station detects from the reply signal that the destination station failed in receiving the data, the base station instead of the substation first transmitted the data transmits the destination address and data received at the fragment slot to the next fragment slot.

    摘要翻译： 在具有用于控制发送权限的基站和多个变电站的通信系统中，具有要发送的数据的变电站将通信帧的请求字段的必要片段数及其地址发送。 基站使用通信帧中的请求字段之后的多对片段时隙和应答时隙，将允许发送数据的子站的地址发送到每个片段时隙。 允许发送数据的变电站将目的地变电站的地址和数据发送到在一个分段时隙中的地址之后的预定字段。 目的站将表示数据的接收状态的应答信号发送到与分段时隙配对的应答时隙。 如果基站从应答信号中检测到目的站在接收数据失败，则基站而不是先发送数据的分站将目的地址和在分片时隙接收到的数据发送到下一个分片时隙。

    Wireless communication system and wireless terminal device using fixed length communication frame
    3.
    发明授权
    Wireless communication system and wireless terminal device using fixed length communication frame 失效
    无线通信系统和使用固定长度通信帧的无线终端设备

    公开(公告)号：US5559804A

    公开(公告)日：1996-09-24

    申请号：US230773

    申请日：1994-04-21

    申请人： Eiichi Amada ,  Yoshihiro Takiyasu ,  Tomoaki Ishifuji ,  Genichi Ishii ,  Hidehiko Jusa ,  Shuichi Adachi

    发明人： Eiichi Amada ,  Yoshihiro Takiyasu ,  Tomoaki Ishifuji ,  Genichi Ishii ,  Hidehiko Jusa ,  Shuichi Adachi

    IPC分类号： H04L12/28 ,  H04L12/46 ,  H04W52/02 ,  H04W74/04 ,  H04W74/08 ,  H04W84/12 ,  H04W88/08 ,  H04J3/00

    CPC分类号： H04W72/0406 ,  H04W8/26 ,  Y02B60/50

    摘要： A wireless communication system includes a plurality of wireless terminals and a base station for periodically generating a fixed-length communication frame composed of an information field which includes a plurality of information slots, and first and second control fields which are arranged preceding the information field and each of which includes a plurality of time slots. Each time slot of the first control field of each communication frame is used for allowing the base station to send control data for designating a terminal which is to make the transmission or reception of data in one information slot of the information field, and each time slot of the second control field thereof is used for allowing one wireless terminal to send control data indicating a requirement for assignment of an information slot for data transmission. Each wireless terminal, when receiving control data inclusive of an address of that terminal in the i-th time slot of the first control field of each communication frame, makes the reception or transmission of data in the i-th information slot in the information field of that communication frame. When the control data is not found out in the first control field, the power source of a reception unit of the wireless terminal is turned off during a period of time until the next communication frame is generated.

    摘要翻译： 无线通信系统包括多个无线终端和用于周期性地生成由包括多个信息时隙的信息字段组成的固定长度通信帧的基站，以及布置在信息字段之前的第一和第二控制字段，以及 其中每一个包括多个时隙。 每个通信帧的第一控制字段的每个时隙用于允许基站发送用于指定要在信息字段的一个信息时隙中发送或接收数据的终端的控制数据，并且每个时隙 用于允许一个无线终端发送指示用于分配用于数据传输的信息时隙的要求的控制数据。 每个无线终端在每个通信帧的第一控制字段的第i个时隙中接收到包括该终端的地址的控制数据时，在信息字段中的第i个信息时隙中接收或发送数据 的通信帧。 当在第一控制字段中没有发现控制数据时，无线终端的接收单元的电源在直到生成下一个通信帧的时间段内被关闭。

    Frequency hopping wireless communication system and communication equipment
    4.
    发明授权
    Frequency hopping wireless communication system and communication equipment 失效
    跳频无线通信系统和通信设备

    公开(公告)号：US5862142A

    公开(公告)日：1999-01-19

    申请号：US461527

    申请日：1995-06-05

    申请人： Yoshihiro Takiyasu ,  Eiichi Amada ,  Tomoaki Ishifuji ,  Genichi Ishii ,  Hidehiko Jusa ,  Shuichi Adachi

    发明人： Yoshihiro Takiyasu ,  Eiichi Amada ,  Tomoaki Ishifuji ,  Genichi Ishii ,  Hidehiko Jusa ,  Shuichi Adachi

    IPC分类号： H04L12/28 ,  H04W16/02 ,  H04W84/12 ,  H04W92/20 ,  H04J1/00

    CPC分类号： H04B1/7156 ,  H04B2001/71566 ,  H04W92/20

    摘要： In a wireless communication system having a plurality of base stations connected through a control line and a plurality of mobile terminals, one of base stations (a master base station) informs a carrier frequency hop timing to the other base stations (slave base stations) through the control line. Each slave base station generates a wireless communication frame used inside of each cell and switches the carrier frequency of the wireless communication frame in synchronous to the timing indicated by the master base station. Each movable terminal receives an identifier of a frequency hopping sequence from a control information field of the wireless communication frame, hops to one carrier frequency selected among a frequency hopping sequence corresponding to this identifier, and transmit or receive the data through the field following the control information field of the wireless communication frame.

    摘要翻译： 在具有通过控制线和多个移动终端连接的多个基站的无线通信系统中，基站（主基站）中的一个基站通过载波频率到其他基站（从基站）的定时到达基站 控制线。 每个从基站产生在每个小区内部使用的无线通信帧，并与主基站指示的定时同步地切换无线通信帧的载波频率。 每个可移动终端从无线通信帧的控制信息字段接收跳频序列的标识符，跳到与该标识符相对应的跳频序列中选择的一个载波频率，并通过控制之后的字段发送或接收数据 无线通信帧的信息字段。