Patents by Inventor Hamidreza Farmanbar

Hamidreza Farmanbar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9510228
    Abstract: An embodiment method of traffic engineering (TE) in a software defined radio access network (SD-RAN) includes determining, by a radio resource manager (RRM) at a wireless radio node, respective data rates for paths of a plurality of user equipments (UEs) wirelessly coupled to the wireless radio node. The RRM computes respective supported wireless rates for the paths of the plurality of UEs according to the respective data rates. The TE module receives respective allocated data rates for the paths of the plurality of UEs. The method also includes repeating the determining and the computing using the respective allocated data rates.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: November 29, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hamidreza Farmanbar, Hang Zhang
  • Patent number: 9485689
    Abstract: System and method embodiments are provided for adaptive traffic engineering configuration. The embodiments enable the TE configuration to change in real time in response to changing conditions in the network, the TE algorithm, or other variables such that a TE decision is substantially optimized for current real time conditions. In an embodiment, a method in a network component for adaptable traffic engineering (TE) configuration in software defined networking (SDN) includes receiving at the network component TE configuration information, wherein the TE configuration information comprises information about at least one of network conditions, a TE algorithm, user equipment (UE) information, and the network component, and dynamically changing with the network component the TE configuration in accordance to a change in the TE configuration information.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: November 1, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hamidreza Farmanbar, Xu Li, Hang Zhang
  • Publication number: 20160226774
    Abstract: The present disclosure provides a method, apparatus and machine readable medium for traffic engineering in a communications network having Quality of Service (QoS) flows and Best Effort (BE) flows. Traffic engineering in a mixed traffic scenario is a multi-objective optimization (MOO) problem having a solution which involves trade-offs between QoS performance objectives and BE performance objectives. In one embodiment of the method, jointly optimized paths and respective flow allocations for each of the QoS flows and BE flows are determined. At least one network component in the communications network are notified of the jointly optimized paths and respective flow allocations for each of the QoS flows and BE flows.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 4, 2016
    Inventor: Hamidreza Farmanbar
  • Publication number: 20160218983
    Abstract: A method for rata adaption and a network device providing rate adaption are disclosed. In an embodiment the method includes determining a source rate adjustment in accordance with a buffer status of a radio node and transmitting towards a traffic source, a source rate adjustment request in accordance with the determined source rate adjustment.
    Type: Application
    Filed: December 29, 2015
    Publication date: July 28, 2016
    Inventors: Ngoc Dung Dao, Hamidreza Farmanbar
  • Publication number: 20160204916
    Abstract: A method and system for routing data in a content distribution network (network) from a plurality of content sources that store the same data to a receiving device, including generating a network topology in which each of the content sources that store the data are represented as virtual routers that are each connected to a common virtual content server by respective infinite capacity communication links; determining optimized routing through the network topology for the data from the virtual content server to the receiving device; and determining, in dependence on the optimized routing, a data allocation for each of the content sources to transmit data through the network to the receiving device.
    Type: Application
    Filed: January 8, 2015
    Publication date: July 14, 2016
    Inventors: Ngoc-Dung Dao, Xu Li, Hamidreza Farmanbar
  • Patent number: 9380487
    Abstract: Embodiments are provided for traffic scheduling based on user equipment (UE) in wireless networks. A location prediction-based network scheduler (NS) interfaces with a traffic engineering (TE) function to enable location-prediction-based routing for UE traffic. The NS obtains location prediction information for a UE for a next time window comprising a plurality of next time slots, and obtains available network resource prediction for the next time slots. The NS then determines, for each of the next time slots, a weight value as a priority parameter for forwarding data to the UE, in accordance with the location prediction information and the available network resource prediction. The result for the first time slot is then forwarded from the NS to the TE function, which optimizes, for the first time slot, the weight value with a route and data for forwarding the data to the UE.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: June 28, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kaveh Shafiee, Hang Zhang, Aaron James Callard, Alex Stephenne, Hamidreza Farmanbar
  • Publication number: 20160156513
    Abstract: System and method embodiments are provided for providing customized virtual networks based on SONAC. In an embodiment, a network management entity for providing a customized VN includes a SONAC module executed by a computing device that is connected to a wireless network, the SONAC module configured to receive service requirement data from the wireless network and create a service customized VN according to the service requirement data, the service requirement data describing one or more service requirements, wherein the SONAC module comprises an interface to interact with: an SDT component, the SDT component used by the SONAC module to determine a service customized logical topology; an SDRA component that maps the logical topology to physical network resources within the wireless network; and a SDP component that determines an end-to-end data transport protocol for communication between a first device and a second device via the wireless network.
    Type: Application
    Filed: November 26, 2015
    Publication date: June 2, 2016
    Inventors: Hang Zhang, Xu Li, Nimal Gamini Senarath, Sophie Vrzic, Ngoc-Dung Dao, Hamidreza Farmanbar
  • Patent number: 9344123
    Abstract: Historical decoding in accordance with signal interference cancellation (SIC) or joint processing may reduce the amount of data that is re-transported across a network following an unsuccessful attempt to decode a data transmission. In one example, historical decoding is performed in accordance with interference cancellation by communicating information related to interfering data (rather than information related to serving data) following a served receiver's unsuccessful attempt to decode an interference signal. The information related to the interfering data may be the information bits carried by the earlier interfering data transmission or parity information (e.g., forward error correction (FEC) bits, etc.) related to the earlier interfering data transmission.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 17, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Aaron James Callard, Hamidreza Farmanbar, Alex Stephenne, Ngoc Dung Dao
  • Publication number: 20160112326
    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.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Inventors: Hamidreza Farmanbar, Xu Li, Hang Zhang
  • Publication number: 20160099797
    Abstract: Historical decoding can be performed in accordance with pilot signal retransmission or control information retransmission to reduce the amount network resources consumed during data recovery. In one example, historical decoding is achieved through retransmitting a sub-set of coded bits carried by an earlier transmission, which are compared with a corresponding portion of the original signal (stored in memory) to obtain improved channel state information (CSI) relating to that earlier transmission. In another example, historical decoding is achieved through communicating parity information related to a sub-set of the coded bits carried by an earlier transmission, which are used in accordance with a data aided CSI technique to obtain the improved CSI relating to that earlier transmission. In yet another example, historical decoding is achieved by re-transmitting control information carried by an earlier transmission, which is used to decode an original signal (stored in memory).
    Type: Application
    Filed: September 30, 2015
    Publication date: April 7, 2016
    Inventors: Aaron James Callard, Hamidreza Farmanbar
  • Publication number: 20160080257
    Abstract: An embodiment method of traffic engineering (TE) in a software defined radio access network (SD-RAN) includes determining, by a radio resource manager (RRM) at a wireless radio node, respective data rates for paths of a plurality of user equipments (UEs) wirelessly coupled to the wireless radio node. The RRM computes respective supported wireless rates for the paths of the plurality of UEs according to the respective data rates. The TE module receives respective allocated data rates for the paths of the plurality of UEs. The method also includes repeating the determining and the computing using the respective allocated data rates.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 17, 2016
    Inventors: Hamidreza Farmanbar, Hang Zhang
  • Publication number: 20160037379
    Abstract: Embodiments are provided for traffic scheduling based on user equipment (UE) in wireless networks. A location prediction-based network scheduler (NS) interfaces with a traffic engineering (TE) function to enable location-prediction-based routing for UE traffic. The NS obtains location prediction information for a UE for a next time window comprising a plurality of next time slots, and obtains available network resource prediction for the next time slots. The NS then determines, for each of the next time slots, a weight value as a priority parameter for forwarding data to the UE, in accordance with the location prediction information and the available network resource prediction. The result for the first time slot is then forwarded from the NS to the TE function, which optimizes, for the first time slot, the weight value with a route and data for forwarding the data to the UE.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 4, 2016
    Inventors: Kaveh Shafiee, Hang Zhang, Aaron Callard, Alex Stephenne, Hamidreza Farmanbar
  • Patent number: 9226196
    Abstract: Historical decoding can be performed in accordance with pilot signal retransmission or control information retransmission to reduce the amount network resources consumed during data recovery. In one example, historical decoding is achieved through retransmitting a sub-set of coded bits carried by an earlier transmission, which are compared with a corresponding portion of the original signal (stored in memory) to obtain improved channel state information (CSI) relating to that earlier transmission. In another example, historical decoding is achieved through communicating parity information related to a sub-set of the coded bits carried by an earlier transmission, which are used in accordance with a data aided CSI technique to obtain the improved CSI relating to that earlier transmission. In yet another example, historical decoding is achieved by re-transmitting control information carried by an earlier transmission.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: December 29, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Aaron James Callard, Hamidreza Farmanbar
  • Publication number: 20150195745
    Abstract: System and method embodiments are provided for adaptive traffic engineering configuration. The embodiments enable the TE configuration to change in real time in response to changing conditions in the network, the TE algorithm, or other variables such that a TE decision is substantially optimized for current real time conditions. In an embodiment, a method in a network component for adaptable traffic engineering (TE) configuration in software defined networking (SDN) includes receiving at the network component TE configuration information, wherein the TE configuration information comprises information about at least one of network conditions, a TE algorithm, user equipment (UE) information, and the network component, and dynamically changing with the network component the TE configuration in accordance to a change in the TE configuration information.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 9, 2015
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Hamidreza Farmanbar, Xu Li, Hang Zhang
  • Patent number: 9072116
    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.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: June 30, 2015
    Assignee: Futurewei Technologies, Inc.
    Inventors: Hamidreza Farmanbar, Aaron Callard
  • Publication number: 20150163147
    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.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 11, 2015
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Xu Li, Hamidreza Farmanbar, Hang Zhang
  • Publication number: 20150124604
    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.
    Type: Application
    Filed: October 16, 2014
    Publication date: May 7, 2015
    Inventors: Ngoc-Dung Dao, Hang Zhang, Hamidreza Farmanbar
  • Publication number: 20150124636
    Abstract: A method for engineering traffic in a communications system includes determining a set of delay constraints associated with a traffic flow over the communications system, and excluding non-convex constraints from the set of delay constraints, thereby producing a set of convex constraints. The method also includes selecting a path solution for the traffic flow in accordance with the set of convex constraints, and sending information regarding the path solution to nodes in the communications system.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventor: Hamidreza Farmanbar
  • Publication number: 20150124623
    Abstract: In one embodiment, a method for traffic splitting includes detecting congestion in a traffic flow and splitting the traffic flow into a first sub-flow and a second sub-flow after detecting congestion in the traffic flow. The method also includes transmitting, by a first node to a destination node, the first sub-flow along a first path and transmitting, by the first node to a second node, the second sub-flow along a second path, where the second sub-flow is destined for the destination node.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 7, 2015
    Inventors: Xu Li, Hamidreza Farmanbar
  • Publication number: 20150119050
    Abstract: An embodiment of a method for network resource management comprises performing joint traffic engineering and physical layer power control on a controller and using a routing and power control optimization process that comprises a combined alternating direction method of multipliers (ADMM) process and a power management process. First and second commands are generated at the controller according to optimization parameters determined by the routing and power control optimization process. The first and second commands are transmitted from the controller to nodes connected to the controller. The first commands are for modifying transmission parameters for links between nodes and the second commands are for modifying transmission parameters for connections between nodes and user devices.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Wei-Cheng Liao, Mingyi Hong, Zhi-Quan Luo, Hamidreza Farmanbar, Xu Li, Hang Zhang