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    • 3. 发明授权
    • Method for channel state measurement in multi-mode multi-hop wireless networks
    • 多模多跳无线网络中信道状态测量的方法
    • US09125097B2
    • 2015-09-01
    • US13500507
    • 2010-10-08
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • H04L1/00H04W24/10H04W88/06
    • H04W24/10H04W88/06
    • The invention concerns a method for measuring channel state information of multiple transmission/reception modes in a wireless network comprising a plurality of nodes, said modes being defined by frequency channels and/or antenna patterns, said wireless network comprising a MAC (Media Access Control) layer and every node comprising at least one MAC queue, comprising the steps of:periodically sending broadcast probe packets by at least one node called transmitter node, using a pre-determined and globally known period and predetermined sequence of transmission modes, each of said probe packets containing the transmission mode used for its transmission a sequence number of the transmission mode in the pre-determined sequence of transmission modes and a timestamp value containing the time said broadcast probe packet was buffered at the MAC queue of the transmitter node; measuring, by at least one second node called receiving node receiving a broadcast probe packet , channel state information of a transmission/reception mode for the link between the transmitter node and the receiving node; storing, by said receiving node, said measured transmission/reception mode for said link; using information contained in said received broadcast probe packet, by said receiving node to determine its reception mode and the beginning and end time instants it will use this reception mode, in order to receive a further broadcast probe packet and measure the next transmission mode of transmitter node, during a next measurement period of transmitter node.
    • 本发明涉及一种用于在包括多个节点的无线网络中测量多个发送/接收模式的信道状态信息的方法,所述模式由频率信道和/或天线模式定义,所述无线网络包括MAC(媒体接入控制) 层和包括至少一个MAC队列的每个节点,包括以下步骤:使用预定和全局已知的周期和预定的传输模式顺序周期性地由至少一个称为发射机节点的节点发送广播探测分组,每个所述探测 包含用于其传输的传输模式的分组在预定的传输模式序列中的传输模式的序列号和包含所述广播探测分组的时间的时间戳值在所述发射机节点的MAC队列处被缓冲; 通过被称为接收节点的至少一个第二节点接收广播探测分组来测量发射机节点和接收节点之间的链路的发射/接收模式的信道状态信息; 由所述接收节点存储所述测量的所述链路的发送/接收模式; 由所述接收节点使用包含在所述接收的广播探测分组中的信息来确定其接收模式以及将使用该接收模式的开始和结束时刻,以便接收另外的广播探测分组并测量发射机的下一个传输模式 节点,在发射机节点的下一个测量周期。
    • 5. 发明申请
    • METHOD FOR CHANNEL STATE MEASUREMENT IN MULTI-MODE MULTI-HOP WIRELESS NETWORKS
    • 多模多用途无线网络中的通道状态测量方法
    • US20120195225A1
    • 2012-08-02
    • US13500507
    • 2010-10-08
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • H04W24/00
    • H04W24/10H04W88/06
    • The invention concerns a method for measuring channel state information of multiple transmission/reception modes in a wireless network comprising a plurality of nodes, said modes being defined by frequency channels and/or antenna patterns, said wireless network comprising a MAC (Media Access Control) layer and every node comprising at least one MAC queue, comprising the steps of: periodically sending broadcast probe packets by at least one node called transmitter node, using a pre-determined and globally known period and predetermined sequence of transmission modes, each of said probe packets containing the transmission mode used for its transmission a sequence number of the transmission mode in the pre-determined sequence of transmission modes and a timestamp value containing the time said broadcast probe packet was buffered at the MAC queue of the transmitter node; measuring, by at least one second node called receiving node receiving a broadcast probe packet, channel state information of a transmission/reception mode for the link between the transmitter node and the receiving node; storing, by said receiving node, said measured transmission/reception mode for said link; using information contained in said received broadcast probe packet, by said receiving node, to determine its reception mode and the beginning and end time instants it will use this reception mode, in order to receive a further broadcast probe packet and measure the next transmission mode of transmitter node, during a next measurement period of transmitter node.
    • 本发明涉及一种用于在包括多个节点的无线网络中测量多个发送/接收模式的信道状态信息的方法,所述模式由频率信道和/或天线模式定义,所述无线网络包括MAC(媒体接入控制) 层和包括至少一个MAC队列的每个节点,包括以下步骤:使用预定和全局已知的周期和预定的传输模式顺序周期性地由至少一个称为发射机节点的节点发送广播探测分组,每个所述探测 包含用于其传输的传输模式的分组在预定的传输模式序列中的传输模式的序列号和包含所述广播探测分组的时间的时间戳值在所述发射机节点的MAC队列处被缓冲; 通过被称为接收节点的至少一个第二节点接收广播探测分组来测量发射机节点和接收节点之间的链路的发射/接收模式的信道状态信息; 由所述接收节点存储所述测量的所述链路的发送/接收模式; 使用由所述接收节点包含在所述接收的广播探测分组中的信息来确定其接收模式以及将使用该接收模式的开始和结束时刻,以便接收另外的广播探测分组并测量下一个传输模式 发射机节点,在发射机节点的下一个测量周期。
    • 6. 发明申请
    • METHOD FOR TOPOLOGY CONTROL USING SECTORIZED ANTENNAS IN WIRELESS NETWORKS
    • 在无线网络中使用分割天线的拓扑学控制方法
    • US20120202432A1
    • 2012-08-09
    • US13500475
    • 2010-10-08
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • H04B15/00H04B17/00
    • H04B7/0491H04W72/0406H04W72/085H04W84/12H04W84/18
    • The invention concerns a method for optimizing antenna pattern assignment for a first wireless communication device forming a wireless network with at least one second wireless communication device, each of said communication device being equipped with a multi-sector antenna, an antenna pattern being a combination of said antenna sectors, said communication devices being adapted for sending a request and for receiving a response using a current antenna pattern assignment, said method comprising a step of: evaluating by said first communication device a first value; sending by said first communication device to said second communication device a broadcast request comprising said value receiving by said first communication device, a response to said broadcast request, said response being sent by said second communication device, said response depending on a second value w evaluated by said second device; Switching or not, by said first communication device, to a new antenna sector assignment depending on said response; According to the invention the first value is evaluated by minimizing a first local function according to the received signal strength received by said first communication device having said current antenna pattern assignment and the second value w is evaluated by minimizing a second local function according to the received signal strength received by said second communication device for its own current antenna pattern assignment.
    • 本发明涉及一种用于利用至少一个第二无线通信设备来优化形成无线网络的第一无线通信设备的天线方向图分配的方法,每个所述通信设备配备有多扇区天线,天线方向图是 所述天线扇区,所述通信设备适于发送请求并使用当前天线方向图分配来接收响应,所述方法包括以下步骤:由所述第一通信设备评估第一值; 由所述第一通信设备向所述第二通信设备发送包括由所述第一通信设备接收的所述值的广播请求,对所述广播请求的响应,所述响应由所述第二通信设备发送,所述响应取决于评估的第二值w 通过所述第二装置; 根据所述响应,由所述第一通信设备切换到不是新的天线扇区分配; 根据本发明,通过根据由具有所述当前天线方向图分配的所述第一通信设备接收到的接收信号强度来最小化第一局部函数来评估第一值,并且通过根据接收到的最小化第二局部函数来评估第二值w 由所述第二通信设备接收的针对其自己的当前天线模式分配的信号强度。
    • 7. 发明授权
    • Method for topology control using sectorized antennas in wireless networks
    • 无线网络中使用扇形天线的拓扑控制方法
    • US09281887B2
    • 2016-03-08
    • US13500475
    • 2010-10-08
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • Theodoros SalonidisAnand Prabhu SubramanianHenrik LundgrenDon Towsley
    • H04M11/04H04B7/04H04W72/08H04W84/12H04W72/04H04W84/18
    • H04B7/0491H04W72/0406H04W72/085H04W84/12H04W84/18
    • The invention concerns a method for optimizing antenna pattern assignment for a first wireless communication device forming a wireless network with at least one second wireless communication device, each of said communication device being equipped with a multi-sector antenna, an antenna pattern being a combination of said antenna sectors, said communication devices being adapted for sending a request and for receiving a response using a current antenna pattern assignment, said method comprising a step of: evaluating by said first communication device a first value; sending by said first communication device to said second communication device a broadcast request comprising said value receiving by said first communication device, a response to said broadcast request, said response being sent by said second communication device, said response depending on a second value evaluated by said second device; Switching or not, by said first communication device, to a new antenna sector assignment depending on said response; According to the invention the first value is evaluated by minimizing a first local function according to the received signal strength received by said first communication device having said current antenna pattern assignment and the second value is evaluated by minimizing a second local function according to the received signal strength received by said second communication device for its own current antenna pattern assignment.
    • 本发明涉及一种用于利用至少一个第二无线通信设备来优化形成无线网络的第一无线通信设备的天线方向图分配的方法,每个所述通信设备配备有多扇区天线,天线方向图是 所述天线扇区,所述通信设备适于发送请求并使用当前天线方向图分配来接收响应,所述方法包括以下步骤:由所述第一通信设备评估第一值; 由所述第一通信设备向所述第二通信设备发送包括由所述第一通信设备接收的所述值的广播请求,对所述广播请求的响应,所述响应由所述第二通信设备发送,所述响应取决于由 第二装置; 根据所述响应,由所述第一通信设备切换到不是新的天线扇区分配; 根据本发明,通过根据具有所述当前天线方向图分配的所述第一通信装置接收到的接收信号强度来最小化第一局部函数来评估第一值,并且通过根据接收信号最小化第二局部函数来评估第二值 由所述第二通信设备接收的针对其本身的当前天线图案分配的强度。