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1. 发明授权

US09749972B2 System and method for clock synchronization in a wireless backhaul network using IEEE 1588 precision time protocol 有权
公开(公告)号：US09749972B2
公开(公告)日：2017-08-29
申请号：US14865300
申请日：2015-09-25
申请人： BLiNQ WIRELESS INC.
发明人： Akram Bin Sediq , Ho Ting Cheng
IPC分类号： H04J11/00 , H04L7/00 , H04W56/00
CPC分类号： H04W56/001
摘要： A method and system is disclosed for clock synchronization in a wireless backhaul network, based on the IEEE1588 Precision Time Protocol (PTP). The network comprises a plurality of hubs, each hub serving one or more remote backhaul modules. Each hub comprises a slave clock, which communicates with a master clock through forward and reverse links. The method comprises, for each hub, estimating the frequency drift {circumflex over (α)} and offset {circumflex over (β)} from the forward and reverse links between the master and slave clock, estimating the accuracy of {circumflex over (α)} and {circumflex over (β)}, determining the least congested link, and adjusting the frequency of the slave clock based on {circumflex over (α)} and {circumflex over (β)} from the least congested link. A fixed or variable time window size is selected to achieve a desired accuracy of {circumflex over (α)} and {circumflex over (β)}. The method may comprise estimating a maximum holdover time for maintaining synchronization with a desired confidence level.

2. 发明授权

US09338672B2 System and method for coordinating hub-beam selection in fixed wireless backhaul networks 有权
标题翻译：用于在固定无线回程网络中协调中心波束选择的系统和方法
公开(公告)号：US09338672B2
公开(公告)日：2016-05-10
申请号：US14255068
申请日：2014-04-17
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting Cheng , Akram Bin Sediq , Radu Bogdan Selea , Xiaochang Wu , Taiwen Tang , Terasan Niyomsataya , Sorin Alexandru Michnea
IPC分类号： H04W24/00 , H04W72/04 , H04W24/02 , H04W72/08 , H04B17/00 , H04W88/04
CPC分类号： H04W24/02 , H04W72/046 , H04W72/085 , H04W88/04
摘要： Systems and methods are disclosed for coordinating hub-beam selection in wireless backhaul networks and optionally, for joint hub-beam selection and slot assignment. Data indicative of path loss is measured or estimated for each of a set of RBMs and for each hub-beam of a respective multi-beam serving hub. A performance metric is computed, and hub-beam selection is made based on optimizing the performance metric across the set of RBMs. A serving hub may use reserved frames to train an RBM on each hub-beam and communicate beam selections, e.g. based on minimizing path loss on a per-cell or per-sector basis, or maximizing a sum-utility function for improved performance over a neighborhood of the network. A beam assignment map may be shared amongst serving hubs. A weight table of good and bad beam combinations may be generated to evaluate the cost of a hub-beam combination, for joint hub-beam selection and slot assignment.
摘要翻译：公开了用于协调无线回程网络中的集线器 - 波束选择的系统和方法，并且可选地，用于联合中心波束选择和时隙分配。针对一组RBM和相应的多光束服务集线器的每个集线器波束的每一个测量或估计表示路径损耗的数据。计算性能度量，并且基于优化整套RBM的性能指标来进行中心波束选择。服务集线器可以使用保留帧来在每个集线器波束上训练RBM并传送波束选择，例如，基于每个小区或每个扇区的路径损耗最小化，或最大化一个和效用函数，以改善网络邻域的性能。波束分配图可以在服务集线器之间共享。可以生成良好和不良波束组合的重量表，以评估轮毂 - 波束组合的成本，用于联合中心波束选择和时隙分配。

3. 发明授权

US09877325B2 System and method for joint scheduling in dual-carrier wireless backhaul networks 有权
公开(公告)号：US09877325B2
公开(公告)日：2018-01-23
申请号：US15392270
申请日：2016-12-28
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting Cheng , Alexandru Moraru , Akram Bin Sediq , Radu Bogdan Selea
IPC分类号： H04W4/00 , H04W72/04 , H04W72/08
CPC分类号： H04W72/0446 , H04W24/08 , H04W48/16 , H04W72/0453 , H04W72/085
摘要： A system and method for joint scheduling in a dual-carrier fixed wireless backhaul network is disclosed, wherein the primary carrier is a licensed band, and the secondary carrier is a lower cost shared band or an unlicensed band. The network comprises a plurality of Hub modules, each serving a cluster of one or more Remote backhaul modules (RBMs). A special frame structure and a control channel on the primary carrier carries control signalling messages for RBMs assigned to either the primary or secondary carrier. RBMs with a performance metric, such a spectral efficiency, above a threshold are assigned to the primary carrier. Other RBMs are assigned the secondary carrier, and a channel assignment is then performed. A transmission mode is determined based on instantaneous channel conditions, to optimize overall system performance across a network neighborhood and meet RBM quality of service requirements. A centralized server/processing unit co-ordinates dual carrier joint scheduling functions.

4. 发明授权

US09544792B2 System and method for joint scheduling in dual-carrier wireless backhaul networks 有权
标题翻译：双载波无线回程网络中联合调度的系统和方法
公开(公告)号：US09544792B2
公开(公告)日：2017-01-10
申请号：US14314878
申请日：2014-06-25
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting Cheng , Alexandru Moraru , Akram Bin Sediq , Radu Bogdan Selea
IPC分类号： H04W4/00 , H04W24/08 , H04W48/16
CPC分类号： H04W72/0446 , H04W24/08 , H04W48/16 , H04W72/0453 , H04W72/085
摘要： A system and method for joint scheduling in a dual-carrier fixed wireless backhaul network is disclosed, wherein the primary carrier is a licensed band, and the secondary carrier is an unlicensed or lower cost shared carrier. The network comprises a plurality of Hub modules, each serving a cluster of one or more Remote backhaul modules (RBMs). A special frame structure and a control channel on the primary carrier carries control signalling messages for RBMs assigned to either the primary or secondary carrier. RBMs with a performance metric, such a spectral efficiency, above a threshold are assigned to the primary carrier. Other RBMs are assigned the secondary carrier, and a channel assignment is then performed. A transmission mode is determined based on instantaneous channel conditions, to optimize overall system performance across a network neighborhood and meet RBM quality of service requirements. A centralized server/processing unit coordinates dual carrier joint scheduling functions.
摘要翻译：公开了一种用于双载波固定无线回程网络中的联合调度的系统和方法，其中主载波是许可频带，辅载波是未许可的或较低成本的共享载波。网络包括多个Hub模块，每个Hub模块分别服务于一个或多个远程回程模块（RBM）的集群。主载波上的特殊帧结构和控制信道承载分配给主载波或次载波的RBM的控制信令消息。具有高于阈值的性能度量（诸如频谱效率）的RBM被分配给主载波。其他RBM被分配给辅助载波，然后执行信道分配。基于瞬时信道条件确定传输模式，以优化网络邻域的整体系统性能并满足RBM服务质量要求。集中的服务器/处理单元协调双载波联合调度功能。

5. 发明申请

US20170181161A1 SYSTEM AND METHOD FOR JOINT SCHEDULING IN DUAL-CARRIER WIRELESS BACKHAUL NETWORKS 有权
公开(公告)号：US20170181161A1
公开(公告)日：2017-06-22
申请号：US15392270
申请日：2016-12-28
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting Cheng , Alexandru Moraru , Akram Bin Sediq , Radu Bogdan Selea
IPC分类号： H04W72/04 , H04W72/08
CPC分类号： H04W72/0446 , H04W24/08 , H04W48/16 , H04W72/0453 , H04W72/085
摘要： A system and method for joint scheduling in a dual-carrier fixed wireless backhaul network is disclosed, wherein the primary carrier is a licensed band, and the secondary carrier is a lower cost shared band or an unlicensed band. The network comprises a plurality of Hub modules, each serving a cluster of one or more Remote backhaul modules (RBMs). A special frame structure and a control channel on the primary carrier carries control signalling messages for RBMs assigned to either the primary or secondary carrier. RBMs with a performance metric, such a spectral efficiency, above a threshold are assigned to the primary carrier. Other RBMs are assigned the secondary carrier, and a channel assignment is then performed. A transmission mode is determined based on instantaneous channel conditions, to optimize overall system performance across a network neighbourhood and meet RBM quality of service requirements. A centralized server/processing unit co-ordinates dual carrier joint scheduling functions.

6. 发明申请

US20160095075A1 SYSTEM AND METHOD FOR CLOCK SYNCHRONIZATION IN A WIRELESS BACKHAUL NETWORK USING IEEE 1588 PRECISION TIME PROTOCOL 有权
标题翻译：使用IEEE 1588精度时间协议的无线对讲网络中的时钟同步的系统和方法
公开(公告)号：US20160095075A1
公开(公告)日：2016-03-31
申请号：US14865300
申请日：2015-09-25
申请人： BLiNQ WIRELESS INC.
发明人： Akram Bin Sediq , Ho Ting Cheng
IPC分类号： H04W56/00 , H04L12/807
CPC分类号： H04W56/001
摘要： A method and system is disclosed for clock synchronization in a wireless backhaul network, based on the IEEE1588 Precision Time Protocol (PTP). The network comprises a plurality of hubs, each hub serving one or more remote backhaul modules. Each hub comprises a slave clock, which communicates with a master clock through forward and reverse links. The method comprises, for each hub, estimating the frequency drift {circumflex over (α)} and offset {circumflex over (β)} from the forward and reverse links between the master and slave clock, estimating the accuracy of {circumflex over (α)} and {circumflex over (β)}, determining the least congested link, and adjusting the frequency of the slave clock based on {circumflex over (α)} and {circumflex over (β)} from the least congested link. A fixed or variable time window size is selected to achieve a desired accuracy of {circumflex over (α)} and {circumflex over (β)}. The method may comprise estimating a maximum holdover time for maintaining synchronization with a desired confidence level.
摘要翻译：公开了一种基于IEEE1588精确时间协议（PTP）的无线回程网络中的时钟同步的方法和系统。网络包括多个集线器，每个集线器服务于一个或多个远程回程模块。每个集线器包括从时钟，其通过正向和反向链路与主时钟通信。该方法包括：对于每个集线器，从主时钟和从时钟之间的正向和反向链路估计频率漂移（（α）}和偏移（＆bgr;）}偏移{估计{ α）}和{circumflex over（＆bgr;）}，确定最不拥塞的链路，并且基于来自最不拥塞的链路的{circumflex over（α）}和{circumflex over（＆bgr;）}来调整从时钟的频率。选择一个固定的或可变的时间窗口大小来实现{circumflex over（α）}和{circumflex over（＆bgr;）}的所需精度。该方法可以包括估计用于维持与期望置信水平的同步的最大保持时间。

7. 发明申请

US20150382347A1 SYSTEM AND METHOD FOR JOINT SCHEDULING IN DUAL-CARRIER WIRELESS BACKHAUL NETWORKS 有权
标题翻译：双载波无线网络的联机调度系统与方法
公开(公告)号：US20150382347A1
公开(公告)日：2015-12-31
申请号：US14314878
申请日：2014-06-25
申请人： BliNQ Wireless Inc.
发明人： Ho Ting Cheng , Alexandru Moraru , Akram Bin Sediq , Radu Bogdan Selea
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04W24/08 , H04W48/16 , H04W72/0453 , H04W72/085
摘要： A system and method for joint scheduling in a dual-carrier fixed wireless backhaul network is disclosed, wherein the primary carrier is a licensed band, and the secondary carrier is an unlicensed or lower cost shared carrier. The network comprises a plurality of Hub modules, each serving a cluster of one or more Remote backhaul modules (RBMs). A special frame structure and a control channel on the primary carrier carries control signalling messages for RBMs assigned to either the primary or secondary carrier. RBMs with a performance metric, such a spectral efficiency, above a threshold are assigned to the primary carrier. Other RBMs are assigned the secondary carrier, and a channel assignment is then performed. A transmission mode is determined based on instantaneous channel conditions, to optimize overall system performance across a network neighbourhood and meet RBM quality of service requirements. A centralized server/processing unit coordinates dual carrier joint scheduling functions.
摘要翻译：公开了一种用于双载波固定无线回程网络中的联合调度的系统和方法，其中，所述主载波是许可频带，所述辅载波是未许可的或较低成本的共享载波。网络包括多个Hub模块，每个Hub模块分别服务于一个或多个远程回程模块（RBM）的集群。主载波上的特殊帧结构和控制信道承载分配给主载波或次载波的RBM的控制信令消息。具有高于阈值的性能度量（诸如频谱效率）的RBM被分配给主载波。其他RBM被分配给辅助载波，然后执行信道分配。基于瞬时信道条件确定传输模式，以优化网络邻域的整体系统性能并满足RBM服务质量要求。集中的服务器/处理单元协调双载波联合调度功能。

8. 发明申请

US20150305047A1 SYSTEM AND METHOD FOR COORDINATING HUB-BEAM SELECTION IN FIXED WIRELESS BACKHAUL NETWORKS 有权
标题翻译：在固定无线网路中协调HUB-BEAM选择的系统和方法
公开(公告)号：US20150305047A1
公开(公告)日：2015-10-22
申请号：US14255068
申请日：2014-04-17
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting CHENG , Akram Bin Sediq , Radu Bogdan Selea , Xiaochang Wu , Taiwen Tang , Terasan Niyomsataya , Sorin Alexandru Michnea
IPC分类号： H04W72/08 , H04W24/02
CPC分类号： H04W24/02 , H04W72/046 , H04W72/085 , H04W88/04
摘要： Systems and methods are disclosed for coordinating hub-beam selection in wireless backhaul networks and optionally, for joint hub-beam selection and slot assignment. Data indicative of path loss is measured or estimated for each of a set of RBMs and for each hub-beam of a respective multi-beam serving hub. A performance metric is computed, and hub-beam selection is made based on optimizing the performance metric across the set of RBMs. A serving hub may use reserved frames to train an RBM on each hub-beam and communicate beam selections, e.g. based on minimizing path loss on a per-cell or per-sector basis, or maximizing a sum-utility function for improved performance over a neighborhood of the network. A beam assignment map may be shared amongst serving hubs. A weight table of good and bad beam combinations may be generated to evaluate the cost of a hub-beam combination, for joint hub-beam selection and slot assignment.
摘要翻译：公开了用于协调无线回程网络中的集线器 - 波束选择的系统和方法，并且可选地，用于联合中心波束选择和时隙分配。针对一组RBM和相应的多光束服务集线器的每个集线器波束的每一个测量或估计表示路径损耗的数据。计算性能度量，并且基于优化整套RBM的性能指标来进行中心波束选择。服务集线器可以使用保留帧来在每个集线器波束上训练RBM并传送波束选择，例如，基于每个小区或每个扇区的路径损耗最小化，或最大化一个和效用函数，以改善网络邻域的性能。波束分配图可以在服务集线器之间共享。可以生成良好和不良波束组合的重量表，以评估轮毂 - 波束组合的成本，用于联合中心波束选择和时隙分配。

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