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    • 2. 发明申请
    • METHOD, DEVICES AND SYSTEM FOR LOCAL COLLISION AVOIDANCE FOR RANDOM ACCESS IN RELAY NETWORKS
    • 方法,用于继电网随机访问的局部冲突避免的装置和系统
    • WO2009112080A1
    • 2009-09-17
    • PCT/EP2008/053105
    • 2008-03-14
    • NOKIA SIEMENS NETWORKS OYHU, HonglinWANG, HaifengZHOU, Ping
    • HU, HonglinWANG, HaifengZHOU, Ping
    • H04W74/08
    • H04W74/0841H04L1/1867H04W88/04
    • An apparatus such as a user equipment is in an embodiment of the invention configured to broadcast an access request to at least one neighboring node, the access request containing signature information indicating a user identifier, to check whether a collision indicator is received from a relay node, and to send another access request depending on a received collision indicator. The collision indicator may e.g. be a signature collision indicator, received from the node in case of colliding users, or a collision indicator of transmission received when transmissions of access requests are colliding at the node. A relay node may be configured to receive an access request from a user equipment, to detect a collision, and to inform the user equipment on a detected collision, indicating a type of collision.
    • 诸如用户设备的装置在本发明的实施例中被配置为向至少一个相邻节点广播访问请求,所述访问请求包含指示用户标识符的签名信息,以检查是否从中继节点接收到冲突指示符 并且根据接收到的冲突指示符发送另一访问请求。 碰撞指示器可以例如 作为在碰撞用户的情况下从节点接收到的签名冲突指示符,或者当接入请求的传输在节点处碰撞时接收的传输的冲突指示符。 中继节点可以被配置为从用户设备接收访问请求,以检测冲突,并且在检测到的冲突时通知用户设备,指示冲突的类型。
    • 5. 发明申请
    • METHODS AND APPARATUS FOR OPTICAL COMMUNICATION
    • 用于光通信的方法和设备
    • WO2004064260A3
    • 2004-12-09
    • PCT/US2004000322
    • 2004-01-07
    • ZHOU PING
    • ZHOU PING
    • G02B6/34G02B6/35G02F1/31H04Q11/00G02B6/28
    • H04Q11/0005G02B6/29373G02B6/29395G02B6/351G02B6/3524G02B6/3528G02B6/3538G02B6/3544G02B6/3546G02B6/3556G02B6/356G02B6/3568G02B6/3572G02B6/3576G02F1/31H04Q2011/0035
    • A method and apparatus for communications according to various aspects of the present invention comprises a switching system configured to receive optical signals and direct the optical signals along a selected optical path. The switching system suitably includes more than one switch, and at least one of the switches may include a variable refractive material having a first state and a second state, wherein the optical signal is transmitted via a first path when the variable refractive material is in the first state and the individual channel signal is transmitted via a second path when the variable refractive material is in the second state. The switching system may alternatively or additionally include a switch element having a reflective state and a transmissive state, wherein the optical signal is reflected via a first path when the switch element is in the reflective state and the individual channel signal is transmitted via a second path when the switch element is in the transmissive state.
    • 根据本发明的各个方面的用于通信的方法和设备包括交换系统,该交换系统被配置为接收光信号并沿选定的光路引导光信号。 开关系统适当地包括多于一个开关,并且开关中的至少一个可以包括具有第一状态和第二状态的可变折射材料,其中当可变折射材料处于第一状态时,光信号经由第一路径传输 第一状态,并且当可变折射材料处于第二状态时,单独通道信号经由第二路径传输。 开关系统可以可选地或附加地包括具有反射状态和透射状态的开关元件,其中当开关元件处于反射状态时,光信号经由第一路径反射,并且单独通道信号经由第二路径 当开关元件处于透​​射状态时。