公开(公告)号：US09072116B2

公开(公告)日：2015-06-30

申请号：US13787599

申请日：2013-03-06

Applicant: FutureWei Technologies, Inc.

Inventor： Hamidreza Farmanbar ,  Aaron Callard

IPC: H04W72/10 ,  H04W72/12

CPC classification number: H04W72/12 ,  H04L1/0003 ,  H04L1/0009

Abstract: The computational complexity of MCS adaptation for linear and non-linear MU-MIMO can be reduced by avoiding QR decomposition during subsequent stages of MCS adaptation. For instance, QR decomposition can be avoided in later stages of MCS adaptation by computing an instant upper right triangular matrix (R1) directly from an earlier upper right triangular matrix (R) and an earlier unitary matrix (U), which were obtained during a previous stage of MCS adaptation. As such, the instant upper right triangular matrix (R1) is obtained without performing QR decomposition on an instant Hermitian matrix (H1H), thereby allowing MCS adaptation to be performed for the new user group with less complexity. Additionally, computational complexity of MCS adaptation for linear MU-MIMO can be further reduced by avoiding matrix inversion during subsequent stages of MCS adaptation.

Abstract translation: 通过在MCS适应的后续阶段避免QR分解，可以减少线性和非线性MU-MIMO的MCS适应的计算复杂度。 例如，可以通过直接从较早的右上角三角矩阵（R）和较早的单位矩阵（U）计算即时右上角三角矩阵（R）和较早的单位矩阵（U）来在MCS适应的后期阶段避免QR分解，这是在 MCS适应的前期阶段。 这样，即时的右上角三角矩阵（R1）就不需要对即时埃米特矩阵（H1H）进行QR分解，从而允许以较不复杂的方式为新的用户组执行MCS适配。 此外，通过在MCS适应的后续阶段避免矩阵反演，可以进一步减少用于线性MU-MIMO的MCS适应的计算复杂度。

公开(公告)号：US20150163147A1

公开(公告)日：2015-06-11

申请号：US14097930

申请日：2013-12-05

Applicant: FutureWei Technologies, Inc.

Inventor： Xu Li ,  Hamidreza Farmanbar ,  Hang Zhang

IPC: H04L12/801

CPC classification number: H04L47/18 ,  H04L45/02 ,  H04L45/302 ,  H04L45/42 ,  H04L47/122 ,  H04L47/726 ,  H04W28/12

Abstract: System and method embodiments are provided for traffic engineering (TE) in software defined networking (SDN). The embodiments enable a complete end-to-end TE solution between a user equipment (UE) and a source/destination across a radio access network (RAN). In an embodiment, a method in a network component for TE in a SDN includes receiving TE information from a first core network component in a core network, a RAN component, wherein the RAN is communicably coupled to the core network, wherein the TE information includes a TE objective; and determining a TE decision between at least one UE and a second core network component in the core network according to the TE information and the TE objective, wherein the TE decision comprises information for at least one end-to-end path solution between the at least one UE and the second core network wherein the path traverses the core network and the RAN.

Abstract translation: 为软件定义组网（SDN）中的流量工程（TE）提供了系统和方法实施例。 这些实施例能够在用户设备（UE）和跨越无线接入网络（RAN）的源/目的地之间实现完整的端到端TE解决方案。 在一个实施例中，SDN中的TE的网络组件中的方法包括从核心网络中的第一核心网络组件接收TE信息，RAN组件，其中RAN可通信地耦合到核心网络，其中TE信息包括 TE目标; 以及根据所述TE信息和所述TE目标，确定所述核心网络中的至少一个UE与所述第二核心网络组件之间的TE决定，其中，所述TE决定包括用于所述TE信息和所述TE目标之间的至少一个端到端路径解的信息 至少一个UE和第二核心网络，其中路径穿过核心网络和RAN。

公开(公告)号：US20150124604A1

公开(公告)日：2015-05-07

申请号：US14516459

申请日：2014-10-16

Applicant: Futurewei Technologies, Inc.

Inventor： Ngoc-Dung Dao ,  Hang Zhang ,  Hamidreza Farmanbar

IPC: H04W28/02

CPC classification number: H04L47/12 ,  H04L47/122 ,  H04L47/26 ,  H04W28/0247

Abstract: System and method embodiments are provided for proactive congestion detection in radio access networks. In an embodiment, a method in a network component for inhibiting the occurrence of congestion at radio nodes in a network includes determining, by the network component, a congestion alert threshold according to available resources in the network, wherein the congestion alert threshold comprises an incoming data rate threshold to an ingress server; and transmitting, by the network component, the congestion alert threshold to the ingress server, wherein the ingress server is configured to transmit a congestion alert to the network component when the incoming data rate exceeds the congestion alert threshold.

Abstract translation: 为无线接入网络中的主动拥塞检测提供了系统和方法实施例。 在一个实施例中，网络组件中用于禁止网络中无线电节点处的拥塞发生的方法包括：根据网络中的可用资源来确定网络组件拥塞警报阈值，其中拥塞警报阈值包括传入 数据速率阈值到入口服务器; 并且所述网络组件将所述拥塞警报阈值发送到所述入口服务器，其中，所述入口服务器被配置为在所述输入数据速率超过所述拥塞警报阈值时向所述网络组件发送拥塞警报。

公开(公告)号：US20140362688A1

公开(公告)日：2014-12-11

申请号：US14069948

申请日：2013-11-01

Applicant: FutureWei Technologies, Inc.

Inventor： Hang Zhang ,  Gamini Senarath ,  Aaron Callard ,  Hamidreza Farmanbar ,  Ngoc-Dung Dao ,  Alex Stephenne ,  Petar Djukic ,  Xu Li ,  Kaveh Shafiee ,  Philippe Leroux

IPC: H04W72/04 ,  H04W28/02

CPC classification number: H04W72/0486 ,  H04L41/0816 ,  H04L41/0896 ,  H04L41/12 ,  H04L41/147 ,  H04L41/5067 ,  H04W24/02 ,  H04W28/0284 ,  H04W28/0289 ,  H04W28/08 ,  H04W28/18 ,  H04W84/105 ,  H04W92/04

Abstract: A system and method for agile wireless access network is provided. A method embodiment for agile radio access network management includes determining, by a network controller, capabilities and neighborhood relations of radio nodes in the radio access network. The network controller then configures a backhaul network infrastructure for the radio access network in accordance with the capabilities and the neighborhood relations of the radio nodes.

Abstract translation: 提供了一种用于敏捷无线接入网络的系统和方法。 用于敏捷无线电接入网络管理的方法实施例包括由网络控制器确定无线电接入网络中的无线电节点的能力和邻域关系。 网络控制器然后根据无线电节点的能力和邻居关系配置无线电接入网络的回程网络基础设施。

公开(公告)号：US20140254495A1

公开(公告)日：2014-09-11

申请号：US13787599

申请日：2013-03-06

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Hamidreza Farmanbar ,  Aaron Callard

IPC: H04W72/12

CPC classification number: H04W72/12 ,  H04L1/0003 ,  H04L1/0009

Abstract: The computational complexity of MCS adaptation for linear and non-linear MU-MIMO can be reduced by avoiding QR decomposition during subsequent stages of MCS adaptation. For instance, QR decomposition can be avoided in later stages of MCS adaptation by computing an instant upper right triangular matrix (R1) directly from an earlier upper right triangular matrix (R) and an earlier unitary matrix (U), which were obtained during a previous stage of MCS adaptation. As such, the instant upper right triangular matrix (R1) is obtained without performing QR decomposition on an instant Hermitian matrix (H1H), thereby allowing MCS adaptation to be performed for the new user group with less complexity. Additionally, computational complexity of MCS adaptation for linear MU-MIMO can be further reduced by avoiding matrix inversion during subsequent stages of MCS adaptation.

Abstract translation: 通过在MCS适应的后续阶段避免QR分解，可以减少线性和非线性MU-MIMO的MCS适应的计算复杂度。 例如，可以通过直接从较早的右上角三角矩阵（R）和较早的单位矩阵（U）计算即时右上角三角矩阵（R）和较早的单位矩阵（U）来在MCS适应的后期阶段避免QR分解，这是在 MCS适应的前期阶段。 这样，即时的右上角三角矩阵（R1）就不需要对即时埃米特矩阵（H1H）进行QR分解，从而允许以较不复杂的方式为新的用户组执行MCS适配。 此外，通过在MCS适应的后续阶段避免矩阵反演，可以进一步减少用于线性MU-MIMO的MCS适应的计算复杂度。

公开(公告)号：US20130259156A1

公开(公告)日：2013-10-03

申请号：US13852811

申请日：2013-03-28

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Mohammadhadi Baligh ,  Hamidreza Farmanbar

IPC: H04B7/04

CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04L25/03949

Abstract: Method and apparatus are provided for transmission of data. A precoder is selected, and a feedforward filter is derived in accordance with the precoder. In some embodiments, the precoder is an arbitrary effective precoder. Data prepared using the precoder and the feedforward filter can then be transmitted.

Abstract translation: 为数据传输提供了方法和装置。 选择预编码器，并且根据预编码器导出前馈滤波器。 在一些实施例中，预编码器是任意有效的预编码器。 然后可以传输使用预编码器和前馈滤波器准备的数据。