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).

  • Publication number: 20180139107
    Abstract: A method for providing a service in a telecommunications network comprising a plurality of resources and at least one slice of resources. The method comprises actions of receiving, creating and modifying. A request is received from a customer to serve a group of user devices by a first service. A new NSI is created to provide the first service, if it is determined that there is no existing NSI, shareable between a plurality of services, that can provide the first service. An existing NSI, shareable between a plurality of services, is modified to serve the group of user devices by that first service in addition to at least one second service that is already provided by the existing NSI, if it is determined that the existing NSI can provide the first service.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Nimal Gamini SENARATH, Xu LI, Hamidreza FARMANBAR
  • Publication number: 20180132117
    Abstract: Embodiments provide systems and methods for managing resources in networks which utilize network slicing. Embodiments include systems and methods for monitoring performance in networks which utilize network slicing when the resources of a network domain are allocated to more than one slice. Embodiments include systems and methods for monitoring performance when resources of a slice are controlled by different network operators/service providers. A domain manager can make the performance measurement data available per network allotment instance with an identifier indicating to which virtual network service the performance measurement data belongs.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 10, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Nimal Gamini SENARATH, Hamidreza FARMANBAR, Hang ZHANG, Xu LI
  • Publication number: 20180132138
    Abstract: A method of providing a network slice service includes a mobile network operator (MNO): providing one or more service profiles to a virtual service provider (VSP) serving a user population including a plurality of user devices, each service profile comprising attributes defining characteristics of a respective network slice service offered by the MNO, the network slice service comprising any one or more of: a Virtual Network with E2E service requirements; a Virtual Network with a specified network topology; and a virtualized infrastructure. The MNO receives a request for a selected network slice service from the VSP; determines whether or not the requested service can be provided; and responsive to determining that the requested service can be provided: sending a Service Level Agreement (SLA) for the network slice service to the VSP; and subsequently facilitating a network slice service instance in accordance with the SLA.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 10, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Nimal Gamini SENARATH, Xu LI, Hamidreza FARMANBAR, Ngoc Dung DAO, Philippe LEROUX, Hang ZHANG
  • Publication number: 20180124830
    Abstract: In response to receiving a random access channel message from a User Equipment (UE), a network element in a communication network may initiate a random access procedure, for example. The random access channel message includes multiple sequences, such as a first sequence associated with a group of UEs that includes the UE and a second sequence associated with the UE, and may be in any one of multiple different message formats. The random access procedure could include respective search stages for each of the multiple sequences. Power control for random access message transmission is also implemented by the UE in some embodiments.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 3, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: YICHENG LIN, MOHAMMADHADI BALIGH, USA VILAIPORNSAWAI, KELVIN KAR KIN AU, HAMIDREZA FARMANBAR
  • Publication number: 20180123961
    Abstract: A system and method for policy configuration of control plane functions by management plane functions. In an embodiment a management plane entity is operative to transmit, to a policy control function (PCF), a policy related to network slice operations of the network slice and related to total available network slice resources for the network slice. The policy control function (PCF) operative to apply the policy to configure control plane functions for that network slice.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 3, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Hamidreza FARMANBAR, Sophie VRZIC
  • Publication number: 20180091441
    Abstract: A method includes iteratively executing, by a computer, a scheduling process computing an allocation of wireless access network data rate to each link between an Access point and a User Equipment within a coverage area of the Access Point, and a routing process computing an allocation of wired network resources to each wired link between the Access Point and nodes of a wired network. The scheduling and routing processes are independent of each other. At each iteration, information of the allocated wireless access network data rate is passed to the routing process; and information of the aggregate allocated data rate for each service at the Access Point is passed to the scheduling process.
    Type: Application
    Filed: September 26, 2016
    Publication date: March 29, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Hamidreza FARMANBAR
  • Publication number: 20180054384
    Abstract: A method and apparatus supporting service function chaining in a communication network is provided. Service function chaining requires packets of a service to pass through a defined sequence of service nodes of the network. Traffic engineering support includes defining service segments, determining demands for each service segment, determining flow group conservation constraints using the determined demands, and determining a resource allocation for data links which respects the flow group conservation constraints along with a link capacity constraint. A service-based forwarding operation re-labels packets as they traverse each service segment, and forwards packets toward a destination service node of each service segment.
    Type: Application
    Filed: October 31, 2017
    Publication date: February 22, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Hamidreza Farmanbar
  • Publication number: 20170353379
    Abstract: A method and application function for managing data flows in a network comprising a plurality of nodes. The method comprises generating a number N of network load representatives (NLRs) of an expected loading of the network, identifying a path selection configuration for the data flows for each of the N NLRs and mapping a prevailing network loading to a selected one of the N NLRs. If the selected NLR is different from a currently selected NLR, the method triggers traffic engineering (TE) by implementing the path selection configuration of the selected NLR at nodes affected thereby. The application function may comprise an NLR generator, a path optimizer and an NLR mapper.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 7, 2017
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Hamidreza FARMANBAR
  • Patent number: 9807023
    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: Grant
    Filed: January 29, 2015
    Date of Patent: October 31, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Hamidreza Farmanbar
  • Publication number: 20170289043
    Abstract: A method is disclosed for performing traffic engineering for a flow traversing a communications network having a plurality of nodes communicatively coupled by a plurality of links, with at least one of the plurality of links being a wireless link. The method includes setting an activation factor for the at least one wireless link in accordance with buffer statuses associated with nodes traversed by the flow; and transmitting the activation factor to a scheduling entity for scheduling activation of the at least one wireless link in accordance with the activation factor.
    Type: Application
    Filed: April 26, 2016
    Publication date: October 5, 2017
    Inventors: Nan Zhang, Wei-Cheng Liao, Mingyi Hong, Hamidreza Farmanbar, Zhi-Quan Luo
  • Publication number: 20170257870
    Abstract: Systems and methods for performing traffic engineering in a communications network using a plurality of network slices are disclosed. The network slices are configured to manage a service including transmission of data along one or more flows along nodes of the communications network using a portion of physical link resources of the communications network. The method includes allocating the portion of physical link resources of the communications network associated with a first network slice of the plurality of network slices in accordance with instructions received from a traffic engineering entity associated with the first network slice.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 7, 2017
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Hamidreza FARMANBAR, Sophie VRZIC, Hang ZHANG
  • Publication number: 20170237625
    Abstract: A method for agile wireless access network 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.
    Type: Application
    Filed: May 1, 2017
    Publication date: August 17, 2017
    Inventors: Hang Zhang, Nimal Gamini Senarath, Aaron James Callard, Hamidreza Farmanbar, Ngoc Dung Dao, Alex Stephenne, Petar Djukic, Xu Li, Kaveh Shafiee, Philippe Leroux
  • Patent number: 9722913
    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: Grant
    Filed: November 5, 2014
    Date of Patent: August 1, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Hamidreza Farmanbar
  • Patent number: 9674801
    Abstract: A system is provided for allocating downlink transmit power in a wireless multiple-input multiple-output (MIMO) system. During operation, the system identifies a set of receivers for receiving signals from one or more transmitters on a same time-frequency slot, receives channel state information (CSI) for communication channels between the identified receivers and the transmitters, and constructs a precoder based on the CSI. The system further derives a set of power-scale factors for the precoder based on a utility function associated with the identified receivers such that the power-scale factors optimize the utility function. A respective power-scale factor scales power transmitted to a corresponding receiver.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: June 6, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hamidreza Farmanbar, Mohammadhadi Baligh, Keyvan Zarifi
  • Publication number: 20170126832
    Abstract: A method and apparatus for deploying a set of network caches in a communication network is provided. A set of network nodes is identified such that, for each of a set of client device locations, and for at least a number c of the set of nodes, output of a coverage cost function is no greater than a threshold. The coverage cost function receives as input a client location and one of the nodes. The set of network caches are then located at the respective set of nodes. The set of network nodes can be selected from plural candidate sets based on a utility criterion. The candidate sets can be generated by successive addition and/or removal of nodes. Information obtained from a Traffic Engineering function can be used to direct selection of the set of nodes. A cache-client association can be generated for directing clients to particular caches.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Ngoc-Dung DAO, Hamidreza FARMANBAR, Xu LI
  • Patent number: 9642146
    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.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: May 2, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hang Zhang, Nimal Gamini Senarath, Aaron James Callard, Hamidreza Farmanbar, Ngoc Dung Dao, Alex Stephenne, Petar Djukic, Xu Li, Kaveh Shafiee, Philippe Leroux
  • Publication number: 20170104688
    Abstract: Methods and apparatus for determining whether to admit a virtual network using a set of communication network resources are provided. Different network resources can be owned by different infrastructure providers. Virtual network requests include a spatial profile of traffic requirements to be accommodated, and a determination is made as to whether the request can be accommodated based on available network resources. The resources include available backhaul link capacities. The resources can include computing resources for supporting service functions of the virtual network. Monitored network resource usage and traffic corresponding to the virtual network can be used to adjust future requests and accommodations. When a virtual network cannot be accommodated, a counter-offer can be made. Accommodation may incorporate monetary considerations. A feasibility computation of the admission procedure is formulated.
    Type: Application
    Filed: June 14, 2016
    Publication date: April 13, 2017
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Meisam MIRAHSAN, Nimal Gamini SENARATH, Ngoc Dung DAO, Hamidreza FARMANBAR
  • Patent number: 9621239
    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.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 11, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mohammadhadi Baligh, Hamidreza Farmanbar
  • Publication number: 20170093698
    Abstract: A method and apparatus supporting service function chaining in a communication network is provided. Service function chaining requires packets of a service to pass through a defined sequence of service nodes of the network. Traffic engineering support includes defining service segments, determining demands for each service segment, determining flow group conservation constraints using the determined demands, and determining a resource allocation for data links which respects the flow group conservation constraints along with a link capacity constraint. A service-based forwarding operation re-labels packets as they traverse each service segment, and forwards packets toward a destination service node of each service segment.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Hamidreza FARMANBAR
  • Publication number: 20170054776
    Abstract: An embodiment method for network optimization includes obtaining a first request to deliver a first data to a node in a network at a first data rate; obtaining a second request to deliver the first data to the node at a second data rate; and determining a flow decision schedule for a streaming session. The determining the flow decision schedule includes: scheduling a steady-state delivery period to deliver the first data at a steady-state data rate in accordance with the first data rate; and performing a best-effort allocation in accordance with the second data rate to determine a schedule for a supplemental delivery period, concurrent with at least a portion of the steady-state delivery period, to deliver the first data at a supplemental data rate.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 23, 2017
    Inventors: Ngoc-Dung Dao, Xu Li, Hamidreza Farmanbar