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1. 发明授权

US10149172B2 Method and system for network planning in fixed wireless backhaul networks 有权
公开(公告)号：US10149172B2
公开(公告)日：2018-12-04
申请号：US14643389
申请日：2015-03-10
申请人： BLiNQ WIRELESS INC.
发明人： Ho Ting Cheng , Terasan Niyomsataya , Radu Bogdan Selea
IPC分类号： H04W16/18 , H04W84/04
摘要： Systems and methods are disclosed for networking planning for fixed backhaul networks comprising a plurality of hubs, each serving one or more RBMs. The method comprises one or more of terrain pathloss (PL) and antenna gain prediction; network design comprising site association, hub dimensioning and pointing; and optimization of small cell (SC) deployment. PL prediction is based on correlation of user input parameters with reference use cases for channel models for each of downtown, urban, and suburban deployment scenarios. Rapid and effective network planning is achieved with limited input data, even in the absence of high resolution digital maps or building polygons, by selecting the channel model having a highest correlation with available environmental parameters. Optimization of network topology design, system design, and SC deployment, with both access link and backhaul link evaluation, is based on optimization of a sum-utility function across all links for feasible SC site locations.

2. 发明授权

US08824311B2 System and method for co-channel interference measurement and managed adaptive resource allocation for wireless backhaul 有权
标题翻译：用于无线回程的同信道干扰测量和管理自适应资源分配的系统和方法
公开(公告)号：US08824311B2
公开(公告)日：2014-09-02
申请号：US13230368
申请日：2011-09-12
申请人： Steve Andre Beaudin
发明人： Steve Andre Beaudin
IPC分类号： H04W72/08 , H04B17/00 , H04W92/12
CPC分类号： H04W72/082 , H04B17/345 , H04B17/382 , H04W92/12
摘要： A system, method, and software are provided for measuring co-channel interference comprising interlink interference in a wireless backhaul network with particular application for management of resource allocation for Non Line of Sight (NLOS) wireless backhaul in MicroCell and PicoCell networks. Given the difficulty of predicting the interlink interference between multiple links, DownLink and UpLink co-channel interference are characterized for each backhaul radio link between each Hub and each Remote Backhaul Module Unit periodically during active service. Beneficially, the co-channel interference metrics are used as the basis for intelligently and adaptively managing network resources to substantially reduce cumulative interference and increase the aggregate data capacity of the network e.g. by grouping of interfering and/or non-interfering links, and managing resource block allocations accordingly, i.e. assigning common resource blocks preferentially to weakly interfering links or groups of links and allocating a different resource block or orthogonal channels to each strongly interfering link or groups of links.
摘要翻译：提供了一种系统，方法和软件，用于测量包括无线回程网络中的互连干扰的同信道干扰，具体用于MicroCell和PicoCell网络中用于非视线（NLOS）无线回程资源分配的管理。鉴于预测多个链路之间的互连干扰的困难，DownLink和UpLink同信道干扰的特征在于在主动服务期间每个Hub和每个远程回程模块单元之间的每个回程无线电链路。有利地，协同信道干扰度量被用作智能和自适应地管理网络资源的基础，以显着减少累积干扰并增加网络的聚合数据容量。通过干扰和/或非干扰链路的分组以及相应地管理资源块分配，即优先地将公共资源块分配给弱干扰链路或链路组，并将不同的资源块或正交信道分配给每个强干扰链路链接。

3. 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.

4. 发明授权

US09338753B2 Method and apparatus for performance management in wireless backhaul networks via power control 有权
标题翻译：无线回程网络通过功率控制进行性能管理的方法和装置
公开(公告)号：US09338753B2
公开(公告)日：2016-05-10
申请号：US14073459
申请日：2013-11-06
申请人： BLiNQ Wireless Inc.
发明人： Taiwen Tang , Hayssam Dahrouj , Jerry Pak Lup Chow , Radu Bogdan Selea
IPC分类号： H04W52/24 , H04W52/36 , H04B7/02 , H04W52/34
CPC分类号： H04W52/241 , H04B7/022 , H04W52/343 , H04W52/367
摘要： A method and system is disclosed for managing performance of a wireless backhaul network through power management, which provides a practical approach to balancing data throughput and fairness. For each transmit frame, one or more power zones is defined, each power zone comprising a set of radio resources operating at one transmit power level Pi, and the same power zone being defined over the same set of radio resources across all other clusters. The method maximizes the value of weighted weighted-sum utility, using a rate expression based on a CINR function. The optimization comprises a summation of the weighted logarithm of the rate expression plus a non-negative constant value, using a Newton's method approach, for fast and reliable convergence. Optimization may be based on long term averaged channel gains measured for each link. The value of c is selected to achieve a required balance of fairness and data throughput.
摘要翻译：公开了一种用于通过电源管理来管理无线回程网络的性能的方法和系统，其提供了平衡数据吞吐量和公平性的实际方法。对于每个发射帧，定义一个或多个功率区，每个功率区包括在一个发射功率电平Pi下操作的一组无线电资源，并且相同的功率区在所有其他簇上的同一组无线电资源上被定义。该方法使用基于CINR函数的速率表达式来最大化加权加权和效用的值。优化包括使用牛顿法的方法对速率表达式加上非负常数值的加权对数进行求和，以实现快速可靠的收敛。优化可以基于为每个链路测量的长期平均信道增益。选择c的值以实现公平性和数据吞吐量的所需平衡。

5. 发明授权

US09253740B2 Method and apparatus for coordinated power-zone-assignment in wireless backhaul networks 有权
标题翻译：无线回程网络中协调功率区域分配的方法和装置
公开(公告)号：US09253740B2
公开(公告)日：2016-02-02
申请号：US14093011
申请日：2013-11-28
申请人： BLiNQ Wireless Inc.
发明人： Hayssam Dahrouj , Wei Yu , Taiwen Tang , Jerry Chow , Radu Selea
IPC分类号： H04W72/04 , H04W52/34
CPC分类号： H04W52/346 , H04W72/0473
摘要： Methods are disclosed for scheduling resources in a wireless backhaul network comprising a plurality of N Hubs, each Hub serving a plurality of K Remote Backhaul Modules (RBMs), using a coordinated power zone assignment across the backhaul network. For each Hub, a one-to-one power zone assignment, of each of the K RBM to one of the K power zones, is computed by maximizing a selected network utility across the backhaul network. Coordinated power zone assignment according to preferred embodiments based on the auction approach offers a close-to-global-optimal solution. Coordinated scheduling based on first assigning RBMs to hubs heuristically, and then optimally scheduling RBMs within each hub also offers significant performance improvement as compared to non-coordinated systems. Preferred embodiments offer a significant performance improvement as compared to conventional systems. They are low in complexity, and compatible with the physical constraints of SFR-based wireless backhaul network, which make them amenable to practical implementation.
摘要翻译：公开了用于在包括多个N个集线器的无线回程网络中调度资源的方法，每个集线器使用跨越回程网络的协调功率区域分配来服务多个K个远程回程模块（RBM）。对于每个集线器，通过使跨越回程网络的所选网络实用程序最大化来计算K个功率区中的一个的K个RBM中的每一个的一对一功率区分配。基于拍卖方法的根据优选实施例的协调功率区域分配提供了接近于全局的最佳解决方案。基于首先将RBM分配给集线器的协调调度，然后与非协调系统相比，在每个集线器内优化调度RBM也提供了显着的性能改进。与常规系统相比，优选实施例提供显着的性能改进。它们的复杂度低，与基于SFR的无线回程网络的物理约束兼容，使得它们适合实际实现。

6. 发明授权

US09237529B2 Method and apparatus for managing interference in wireless backhaul networks through power control with a one-power-zone constraint 有权
标题翻译：用于通过具有单功率区域约束的功率控制来管理无线回程网络中的干扰的方法和装置
公开(公告)号：US09237529B2
公开(公告)日：2016-01-12
申请号：US13852765
申请日：2013-03-28
申请人： Hayssam Dahrouj , Wei Yu , Taiwen Tang , Jerry Chow , Radu Selea
发明人： Hayssam Dahrouj , Wei Yu , Taiwen Tang , Jerry Chow , Radu Selea
IPC分类号： H04B7/00 , H04W52/24 , H04W52/34
CPC分类号： H04W52/24 , H04W52/244 , H04W52/346
摘要： Methods and apparatus are provided for managing interference in a wireless backhaul network comprising a plurality of hubs, each hub serving a plurality of remote backhaul modules (RBM), using power control with a one-power-zone (OPZ) constraint. Each hub uses a transmit frame structure comprising a plurality of zones, each RBM is scheduled on a different zone, and the same power level is maintained across all zones within a transmit frame. Under the OPZ constraint, and for scheduling policies under which the number of zones assigned to each RBM is fixed, the power and scheduling sub-problems are decoupled. This enables power control independent of scheduling, using methods having lower computational complexity. Methods are disclosed comprising iterative function evaluation or Newton's method approaches based on a weighted sum-rate maximization across the network, which can be implemented in a distributed fashion. Some of the methods can be implemented asynchronously at each hub.
摘要翻译：提供了用于管理包括多个集线器的无线回程网络中的干扰的方法和装置，每个集线器使用具有单功率区（OPZ）约束的功率控制来服务多个远程回程模块（RBM）。每个集线器使用包括多个区域的发射帧结构，每个RBM被调度在不同的区域上，并且在发射帧内的所有区域上维持相同的功率电平。在OPZ约束下，对于分配给每个RBM的区域数量固定的调度策略，功率和调度子问题被解耦。这使得功率控制独立于调度，使用具有较低计算复杂度的方法。公开的方法包括基于跨网络的加权和率最大化的迭代函数评估或牛顿方法方法，其可以以分布式方式实现。某些方法可以在每个集线器上异步实现。

7. 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.

8. 发明授权

US09635571B2 System and method for reception mode switching in dual-carrier wireless backhaul networks 有权
公开(公告)号：US09635571B2
公开(公告)日：2017-04-25
申请号：US14314996
申请日：2014-06-25
申请人： BLiNQ Wireless Inc.
发明人： Ho Ting Cheng , Ovidiu Mihai Leulescu , Radu Bogdan Selea
IPC分类号： H04W4/00 , H04W24/08 , H04W48/16 , H04W72/08 , H04W72/04
CPC分类号： H04W72/0446 , H04W24/08 , H04W48/16 , H04W72/0453 , H04W72/085
摘要： A system and method for reception mode switching in a dual-carrier fixed wireless backhaul network is disclosed. The primary carrier is a licensed band. The secondary carrier may be a lower cost shared band or an unlicensed band. Multi-mode Remote Backhaul Modules (RBMs) comprise a first Radio Frequency (RF) chain with antenna elements for receive/transmit (RX/TX) on the primary carrier and a second RF chain with antenna elements for RX/TX on the secondary carrier. The Multi-mode RBMs adaptively switch from one reception mode to another with resource borrowing of RF and antenna elements, e.g. the secondary carrier RF chain and antenna elements can be borrowed for the primary carrier, for better reception capability for the primary carrier, reducing the number of link-budget and interference-challenged RBMs, and improving system performance. The system may comprise a dual carrier and single carrier Multiple-Input Multiple-Output (MIMO) system with variable antenna topology, having flexibility to switch dynamically between different operational modes depending on performance metrics.

9. 发明授权

US09231678B2 Method and apparatus for precoding in a two transmit antenna closed-loop MIMO fixed wireless backhaul network 有权
标题翻译：在两个发射天线闭环MIMO固定无线回程网络中进行预编码的方法和装置
公开(公告)号：US09231678B2
公开(公告)日：2016-01-05
申请号：US14215798
申请日：2014-03-17
申请人： BLiNQ Wireless Inc.
发明人： Taiwen Tang , Ahikam Aharony , Ho Ting Cheng , Jeroen Stroobach
IPC分类号： H04L27/28 , H04B7/04 , H04L25/03
CPC分类号： H04B7/0456 , H04B7/0413 , H04B7/0617 , H04B7/0619 , H04L25/0204 , H04L25/0248 , H04L25/03343 , H04L25/03898 , H04L25/03904
摘要： A method and system is disclosed for precoding in a two transmit antenna MIMO system, for example, a wireless backhaul network. The method only uses the first column of the 2×2 precoder as the feedback information. When the feedback information is available to the transmitter, the transmitter performs an interpolation and reconstruction procedure to obtain the precoder matrix for each subcarrier. The method offers no significant loss in performance, with reduced computational complexity and feedback overhead compared to conventional known matrix representation methods.
摘要翻译：公开了用于在两个发射天线MIMO系统（例如，无线回程网络）中进行预编码的方法和系统。该方法仅使用2×2预编码器的第一列作为反馈信息。当反馈信息可用于发射机时，发射机执行插值和重建过程以获得每个子载波的预编码器矩阵。与传统的已知矩阵表示方法相比，该方法在性能上没有显着的损失，同时降低了计算复杂度和反馈开销。

10. 发明授权

US10015788B2 System and method of signalling for point-to-multipoint (PtMP) transmission in fixed wireless backhaul networks 有权
公开(公告)号：US10015788B2
公开(公告)日：2018-07-03
申请号：US14643022
申请日：2015-03-10
申请人： BliNQ WIRELESS INC.
发明人： Alexandru Moraru , Ho Ting Cheng , Radu Bogdan Selea
IPC分类号： H04W72/04 , H04L5/14 , H04L27/26 , H04W28/06 , H04B7/06
CPC分类号： H04W72/0446 , H04B7/0617 , H04L5/14 , H04L27/2602 , H04W28/06
摘要： Systems and methods are disclosed for signaling in a point-to-multi-point (PtMP) fixed wireless backhaul network, in which each Hub serves a plurality of Remote Backhaul Modules (RBM). A Hub serves one RBM in each subframe per carrier in TDMA fashion, comprising transmitting a 1 ms TDD frame comprising one DL subframe and one UL subframe and gaps necessary to switch the radio direction and accommodate round trip delay. DL and UL frames may be allocated to different RBMs, with a single RBM in each DL or UL subframe per carrier per antenna beam. Each Hub keeps an independent context for each of its served RBMs. A DL ranging frame carries general information. A UL ranging frame carries a ranging opportunity. RBMs not scheduled in the current timeslot continue to receive a PHY control channel from the serving Hub, and update their parameters or links for link adaptation.

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