公开(公告)号：US10097329B2

公开(公告)日：2018-10-09

申请号：US14075516

申请日：2013-11-08

Applicant: SpiderCloud Wireless, Inc.

Inventor： Han-Ting Chiang ,  Krishna Sayana ,  Brian Dunn ,  Hithesh Nama ,  Peter J. Worters

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04L1/20 ,  H04W28/06 ,  H04W72/12

Abstract: Arrangements disclosed here provide an LTE E-RAN employing a hierarchical architecture with a central controller controlling multiple LTE radio nodes (RNs). The RNs may be clustered within the small cell network. A fractional frequency reuse (“FFR”) scheme is provided that dynamically computes the FFR allocations at individual RNs and configures the corresponding schedulers within each RN to improve cell-edge users' experience. Once an FFR pattern has been generated and frequencies allocated, UE throughput can be emulated to predict the resulting bit rates for each UE. Using the prediction, a scheduler emulation may be run to predict the behavior of the system. The results of each cell may then be collected to generate the performance of the entire system, which may in turn be used to generate a new or modified FFR pattern, or new or modified clustering. Optimization of the performance results in an optimized FFR pattern.

公开(公告)号：US09974027B2

公开(公告)日：2018-05-15

申请号：US15050704

申请日：2016-02-23

Applicant: SPIDERCLOUD WIRELESS, INC.

Inventor： Hithesh Nama ,  Jaspreet Singh ,  Brian Dunn ,  Srinivas Pinagapany

IPC: H04W52/04 ,  H04W52/08 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/36 ,  H04W52/54

CPC classification number: H04W52/08 ,  H04W52/146 ,  H04W52/221 ,  H04W52/241 ,  H04W52/367

Abstract: Systems and methods are disclosed that provide a closed loop power control system including adaptively adjusting the desired target SINR over time so as to ultimately achieve a feasible SINR. In one implementation, a method is provided of optimizing uplink closed loop power control in a RAN in which one or more base stations each service a plurality of mobile stations, including: determining a power level for each mobile station for its respective uplink transmissions, including measuring a current achieved SINR for each mobile station; and for each mobile station, adjusting the power level to be sufficiently high to meet desired transmission characteristics but not so high as to cause unnecessary interference with transmissions from other mobile stations, by adjusting a desired target SINR based on factors selected from the following: current and prior achieved SINRs, current and prior interference measurements, and current and prior transmission power control commands.

公开(公告)号：US20170099666A1

公开(公告)日：2017-04-06

申请号：US15281353

申请日：2016-09-30

Applicant: SpiderCloud Wireless, Inc.

Inventor： Hithesh Nama

IPC: H04W72/04 ,  H04W28/26

CPC classification number: H04W72/0453 ,  H04W16/14 ,  H04W28/26 ,  H04W72/042 ,  H04W72/0446 ,  H04W74/0816

Abstract: In accordance with a method for communicating over a channel in a frequency band (e.g., an unlicensed frequency band) shared by different radio access technologies, prior to transmitting a signal beginning at a predetermined time on a first channel in a frequency band in accordance with a first radio access technology (RAT), the first channel is sensed to determine if it is unoccupied during a specified first duration of time for a specified second duration of time. If the first channel is unoccupied for the specified second duration of time, a channel reservation signal is immediately transmitted on the first channel. The channel reservation signal is decodable by a node operating in accordance with a second RAT different from the first RAT.

公开(公告)号：US09554281B2

公开(公告)日：2017-01-24

申请号：US14075509

申请日：2013-11-08

Applicant: SpiderCloud Wireless, Inc.

Inventor： Han-Ting Chiang ,  Krishna Sayana ,  Brian Dunn ,  Hithesh Nama ,  Peter J. Worters

IPC: H04W16/12 ,  H04W16/10

CPC classification number: H04W16/10

Abstract: Methods and systems are provided for allocating frequencies in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes. In accordance with the method, the radio nodes (RNs) in the RAN are divided into a plurality of clusters of RNs. A fractional frequency reuse (FFR) pattern is generated for each cluster. Transmission resources are allocated to the radio nodes in each cluster in accordance with the respective FFR pattern that is generated for each cluster.

Abstract translation: 提供方法和系统用于在无线电接入网络（RAN）中分配频率，无线电接入网络（RAN）包括与小区相关联的多个无线电节点和可操作地耦合到无线电节点的服务节点。 根据该方法，RAN中的无线节点（RN）被划分成多个RN簇。 为每个集群生成分数频率重用（FFR）模式。 根据为每个簇生成的相应FFR模式，将传输资源分配给每个簇中的无线电节点。

公开(公告)号：US09510205B2

公开(公告)日：2016-11-29

申请号：US13859480

申请日：2013-04-09

Applicant: SpiderCloud Wireless, Inc.

Inventor： Hithesh Nama ,  Pete Worters ,  Gopal Harikumar

IPC: H04W72/00 ,  H04W16/10

CPC classification number: H04W16/10

Abstract: A services node or central controller or coordinator is provided that dynamically computes fractional frequency reuse allocation among user equipment in a radio access network. The central controller or coordinator communicates the fractional frequency reuse allocation and configures the individual MAC schedulers within each radio node in the radio access network. Inputs to the central coordinator may include its serving radio node, a detected set of radio nodes, and information about user equipment buffer status both in the downlink and uplink. In one implementation, interference graphs are constructed for downlinks and uplink separately and the same are used with a heuristic independent set algorithm to compute the frequency allocation.

Abstract translation: 提供了一种服务节点或中央控制器或协调器，其动态地计算无线电接入网络中的用户设备之间的分数频率重用分配。 中央控制器或协调器传送分数频率重用分配，并配置无线电接入网络内每个无线电节点内的各个MAC调度器。 中央协调器的输入可以包括其服务无线电节点，检测到的一组无线电节点，以及在下行链路和上行链路中关于用户设备缓冲器状态的信息。 在一个实现中，针对下行链路和上行链路分别构建干扰图，并且使用与启发式独立集合算法相同的干扰图来计算频率分配。

公开(公告)号：US20160269954A1

公开(公告)日：2016-09-15

申请号：US15069220

申请日：2016-03-14

Applicant: SPIDERCLOUD WIRELESS, INC.

Inventor： Darshan Purohit

IPC: H04W36/08 ,  H04L29/08 ,  H04W52/40 ,  H04L12/24

CPC classification number: H04W36/08 ,  H04L41/082 ,  H04L67/1008 ,  H04L67/34 ,  H04W36/0055 ,  H04W52/40

Abstract: A method for upgrading an access controller that controls and coordinates a plurality of radio nodes (RNs) each associated with a cell in a cluster of cells belonging to a radio access network includes initializing a new access controller. The new access controller is to replace a current access controller currently controlling and coordinating the plurality of RNs cell in the cluster. A most lightly loaded one of the plurality of RNs is identified. All UEs currently attached to the identified RN is caused to be handed off to a neighboring cell in the cluster. After all the UEs have been handed-off from the identified RN, the identified RN is rebooted so that it is being controlled and coordinated by the new access controller. The steps of causing the UEs to be handed-off and rebooting the identified RN are repeated for a second one of the plurality of RNs.

Abstract translation: 一种用于升级控制和协调与属于无线电接入网络的小区中的小区相关联的多个无线电节点（RN）的接入控制器的方法包括初始化新的接入控制器。 新的接入控制器是替换当前控制和协调集群中的多个RN小区的当前接入控制器。 识别出多个RN中最轻的一个。 导致当前连接到所识别的RN的所有UE被切换到群集中的相邻小区。 在已经从所识别的RN切换所有UE之后，重新启动所识别的RN，使得它被新的接入控制器控制和协调。 对于多个RN中的第二个，重复使UE切换并重新启动所识别的RN的步骤。

公开(公告)号：US20160262038A1

公开(公告)日：2016-09-08

申请号：US15069781

申请日：2016-03-14

Applicant: SPIDERCLOUD WIRELESS, INC.,

Inventor： Brian Patrick Dunn ,  Peter J. Worters ,  Yashodhan Dandekar ,  Cong Shen

IPC: H04W28/02 ,  H04L12/24 ,  H04W24/10

CPC classification number: H04L41/0893 ,  H04L41/0816 ,  H04L41/0886 ,  H04L41/12 ,  H04W24/02 ,  H04W28/08 ,  H04W40/32 ,  H04W84/18

Abstract: Systems and methods are disclosed for managing an aggregated self-organizing network (A-SON). In such, a plurality of small cells is grouped into clusters using available topology information. In one implementation, a subset of clusters is assigned to groups of a first type, such that the clusters within a group of the first type have minimal RF connectivity. For example, scanning or updating of RF parameters may then be coordinated such that adjacent clusters do not scan or update simultaneously but clusters within groups of the first type do have at least partially overlapping scans or updates. Similarly, subsets of clusters may be assigned to first and second groups of a second type, such that the clusters within a first group of the second type have sufficient coverage to provide RF connectivity to clusters within the second group, if the second group encounters a service interruption. Other benefits are also described.

Abstract translation: 公开了用于管理聚合自组织网络（A-SON）的系统和方法。 在这样的情况下，使用可用的拓扑信息将多个小小区分组成簇。 在一个实现中，集群的子集被分配给第一类型的组，使得第一类型的组内的集群具有最小的RF连接性。 例如，然后可以协调RF参数的扫描或更新，使得相邻集群不同时扫描或更新，而第一类型的组内的集群确实具有至少部分重叠的扫描或更新。 类似地，集群的子集可以被分配给第二类型的第一和第二组，使得第二类型的第一组内的集群具有足够的覆盖以向第二组内的集群提供RF连接，如果第二组遇到 服务中断 还描述了其他好处。

公开(公告)号：US09356764B2

公开(公告)日：2016-05-31

申请号：US13950343

申请日：2013-07-25

Applicant: SPIDERCLOUD WIRELESS, INC.

Inventor： Hithesh Nama ,  Pete Worters ,  Gopal Harikumar

IPC: H04W4/00 ,  H04L5/00

CPC classification number: H04L5/0091 ,  H04L5/0035 ,  H04L5/0073 ,  H04W4/00

Abstract: A method of joint processing of data in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes is provided. The services node provides connectivity to a core network. The method includes determining that a plurality of first UEs (User Equipment) each being serviced by a selected set of the cells is to operate in accordance with a hybrid joint processing scheme. Information is transferred between the plurality of first UEs and the radio nodes in accordance with the hybrid joint processing scheme by performing L1 layer processing on the radio nodes and L2 layer processing at the services node.

Abstract translation: 提供了一种在无线电接入网络（RAN）中联合处理数据的方法，该方法包括与小区相关联的多个无线电节点和可操作地耦合到无线电节点的服务节点。 服务节点提供与核心网络的连接。 该方法包括确定由所选择的小区集合服务的多个第一UE（用户设备）要根据混合联合处理方案进行操作。 通过对无线节点进行L1层处理，在服务节点进行L2层处理，根据混合联合处理方式，在多个第一UE与无线节点之间传送信息。

公开(公告)号：US20140287759A1

公开(公告)日：2014-09-25

申请号：US13848564

申请日：2013-03-21

Applicant: SPIDERCLOUD WIRELESS, INC.

Inventor： Darshan Purohit

IPC: H04W36/00

CPC classification number: H04W56/0015 ,  H04W36/0083 ,  H04W84/045

Abstract: Systems and methods are provided for resolving Primary Scrambling Code (PSC) ambiguity. A radio link having the same PSC as that reported by user equipment (UE) may be created on some or all internal cells which are chosen based on radio frequency (RF) proximity to a serving cell of the UE or one or more iterations of a PSC resolution set selection process. If the UE is reporting the PSC of one of these cells, the UE and a Node Bs will be able to successfully complete a synchronization procedure to add one of the radio links to the UE's active set, while any remaining created radio links can be deleted. After a certain number of successful radio link additions, the combination of the PSC and active set may be considered to be resolved, therefore, negating a need to resolve the PSC in subsequent soft handover requests.

Abstract translation: 提供了系统和方法来解决主要扰码（PSC）模糊。 可以在基于与UE的服务小区的射频（RF）接近度或者一个或多个迭代的一个或多个迭代中选择的一些或所有内部小区上创建与用户设备（UE）报告的具有相同PSC的无线电链路 PSC分辨率集选择过程。 如果UE正在报告这些小区之一的PSC，则UE和节点B将能够成功地完成同步过程，以将无线链路中的一个添加到UE的活动集，而任何剩余的创建的无线电链路可被删除 。 在一定数量的成功的无线电链路添加之后，可以认为PSC和活动集合的组合被解决，因此，否定在随后的软切换请求中解析PSC的需要。

公开(公告)号：US20140213269A1

公开(公告)日：2014-07-31

申请号：US13752372

申请日：2013-01-28

Applicant: SpiderCloud Wireless, Inc.

Inventor： Hithesh Nama ,  Pete Worters

IPC: H04W72/04

CPC classification number: H04W28/16 ,  H04W72/1247 ,  H04W72/1278

Abstract: A radio access network, such as an LTE E-RAN, employs a hierarchical architecture and includes a services node that provides connectivity between the radio nodes in the RAN and a core network. The RAN employs a hybrid coordinated scheduling scheme in which independent schedulers are running on the services node and the radio nodes. In this way the services node can allocate scheduling resources for some of the UEs in the RAN while the radio nodes can allocate scheduling resources for the remaining UEs in their respective serving cells. In some cases a prioritization approach is used in which the radio nodes do not schedule any radio resources that have already been scheduled by the services node.

Abstract translation: 诸如LTE E-RAN的无线电接入网络采用分层架构，并且包括提供RAN中的无线节点与核心网络之间的连接的服务节点。 RAN采用混合协调调度方案，其中独立调度器在服务节点和无线电节点上运行。 以这种方式，服务节点可以为RAN中的一些UE分配调度资源，而无线电节点可以为其各自的服务小区中的剩余UE分配调度资源。 在某些情况下，使用优先级方法，其中无线电节点不调度已经由服务节点调度的任何无线电资源。