Patents by Inventor Bozidar Radunovic
Bozidar Radunovic 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).
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Publication number: 20240137812Abstract: Described are examples for monitoring performance metrics of one or more workloads in a cloud-computing environment and reallocating compute resources based on the monitoring. Reallocating compute resources can include migrating workloads among nodes or other resources in the cloud-computing environment, reallocating hardware accelerator resources, adjusting transmit power for virtual radio access network (vRAN) workloads, and/or the like.Type: ApplicationFiled: December 19, 2023Publication date: April 25, 2024Inventors: Bozidar RADUNOVIC, Sanjeev Mehrotra, Yongguang Zhang, Paramvir Bahl, Xenofon Foukas
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Patent number: 11956672Abstract: Described are examples for receiving, from one or more second virtual radio access network (vRAN) workloads operating one or more second cells, an indication of a measurement of at least a first signal transmitted by a first vRAN workload operating a first cell, computing, based on measurements of at least the first signal as received from the one or more second vRAN workloads, a boundary of the first cell, and adjusting, based on the boundary of the first cell, a transmit parameter of the first vRAN workload for transmitting signals in the first cell.Type: GrantFiled: May 18, 2021Date of Patent: April 9, 2024Assignee: Microsoft Technology Licensing, LLCInventors: Bozidar Radunovic, Sanjeev Mehrotra, Yongguang Zhang, Paramvir Bahl, Xenofon Foukas
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Publication number: 20240032151Abstract: The systems and methods relate to virtual radio access networks (vRANs). The systems and methods may offload a signal processing task of a physical layer from a vRAN server located at the far edge of a network nearby a base station to a remote location further away from the base station. The remote location may include higher level edge deployments of servers or a cloud deployment of servers. The system and methods may scale the vRAN server capacity by offloading the signal processing task to the remote location without compromising quality of service requirements or latency requirements of the user equipment or the applications.Type: ApplicationFiled: October 3, 2023Publication date: January 25, 2024Inventors: Xenofon FOUKAS, Jincao ZHU, Bozidar RADUNOVIC
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Publication number: 20230421459Abstract: Described are examples for using codelets executing within applications to use machine-learning (ML) models to infer a result based on application data. The codelets may be dynamically loaded into the applications during execution. A controller verifies, based on extended Berkeley packet filter (eBPF) bytecode of the codelet, that the codelet satisfies safety requirements for execution within the application. A computing device executing the application loads the verified codelet into a library of the application. The application executes the verified codelet to apply application data to the machine-learning model to infer a result. The ML model may be implemented by the eBPF code of the codelet or the codelet may include a call to a machine-learning model of a type supported by a controller of the application and a map for a serial representation of the machine-learning model. The computing device may reconstruct the ML model based on the serial representation.Type: ApplicationFiled: September 6, 2023Publication date: December 28, 2023Inventors: Xenofon FOUKAS, Bozidar RADUNOVIC
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Publication number: 20230388393Abstract: Described are examples for providing fine-grained real-time pre-emption of codelets based on a runtime threshold. A controller inserts checkpoints into extended Berkeley packet filter (eBPF) bytecode of a third-party codelet prior to verification of the third-party codelet. A device executes the codelet at a hook point of an application. The inserted checkpoints determine a runtime of the codelet. The device terminates the codelet in response to the runtime exceeding a threshold. The application can be a virtualized radio access network (vRAN) network function and the codelet can control the vRAN function or export network metrics. The application may be executed in a container management system that modifies a container for the application to mount code including a function associated with the hook point of the application to the container; detect an annotation for the container that identifies the codelet; and symbolically links the codelet to the hook point.Type: ApplicationFiled: May 25, 2022Publication date: November 30, 2023Inventors: Xenofon FOUKAS, Bozidar RADUNOVIC, Sanjeev MEHROTRA
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Patent number: 11812518Abstract: The systems and methods relate to virtual radio access networks (vRANs). The systems and methods may offload a signal processing task of a physical layer from a vRAN server located at the far edge of a network nearby a base station to a remote location further away from the base station. The remote location may include higher level edge deployments of servers or a cloud deployment of servers. The system and methods may scale the vRAN server capacity by offloading the signal processing task to the remote location without compromising quality of service requirements or latency requirements of the user equipment or the applications.Type: GrantFiled: November 17, 2020Date of Patent: November 7, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Xenofon Foukas, Jincao Zhu, Bozidar Radunovic
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Publication number: 20230350741Abstract: A reliable network function virtualization (rVNF) system includes a virtualized network function (VNF) application instance that includes a plurality of physical VNF instances. A load balancer provides an interface between a client and the VNF application instance. A load balancer interface facilitates delivery of packets related to a particular user context to the same physical VNF instance. A communication interface facilitates communication between the client and the VNF application instance. Application storage stores session data associated with the VNF application instance.Type: ApplicationFiled: June 23, 2023Publication date: November 2, 2023Inventors: Bozidar RADUNOVIC, Matthew John BALKWILL, Noel Andrew BAINBRIDGE, Yongguang ZHANG, Antonios KATSARAKIS
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Patent number: 11792084Abstract: Described are examples for using codelets executing within applications to use machine-learning (ML) models to infer a result based on application data. The codelets may be dynamically loaded into the applications during execution. A controller verifies, based on extended Berkeley packet filter (eBPF) bytecode of the codelet, that the codelet satisfies safety requirements for execution within the application. A computing device executing the application loads the verified codelet into a library of the application. The application executes the verified codelet to apply application data to the machine-learning model to infer a result. The ML model may be implemented by the eBPF code of the codelet or the codelet may include a call to a machine-learning model of a type supported by a controller of the application and a map for a serial representation of the machine-learning model. The computing device may reconstruct the ML model based on the serial representation.Type: GrantFiled: May 25, 2022Date of Patent: October 17, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Xenofon Foukas, Bozidar Radunovic
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Patent number: 11765656Abstract: A method for adjusting discontinuous reception (DRX) behavior of a user equipment (UE) to conserve energy use includes exposing a DRX application programming interface (API) that enables DRX parameters to be changed and defining a conflict resolution policy that controls when requests to change the DRX parameters should be granted. The method also includes receiving, via the DRX API, a request from an application to change a DRX parameter for the UE. The UE is in wireless communication with a base station, and the application is configured to send data to the UE via a mobile network that comprises the base station. The method also includes determining, based at least in part on the conflict resolution policy, that the request should be granted and sending a command to the base station that causes the base station to communicate a new value of the DRX parameter to the UE.Type: GrantFiled: January 24, 2023Date of Patent: September 19, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Xenofon Foukas, Bozidar Radunovic, Yongguang Zhang, Landon Prentice Cox
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Patent number: 11687390Abstract: A reliable network function virtualization (rVNF) system includes a virtualized network function (VNF) application instance that includes a plurality of physical VNF instances. A load balancer provides an interface between a client and the VNF application instance. A load balancer interface facilitates delivery of packets related to a particular user context to the same physical VNF instance. A communication interface facilitates communication between the client and the VNF application instance. Application storage stores session data associated with the VNF application instance.Type: GrantFiled: July 31, 2021Date of Patent: June 27, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Bozidar Radunovic, Matthew John Balkwill, Noel Andrew Bainbridge, Yongguang Zhang, Antonios Katsarakis
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Publication number: 20230171694Abstract: A method for adjusting discontinuous reception (DRX) behavior of a user equipment (UE) to conserve energy use includes exposing a DRX application programming interface (API) that enables DRX parameters to be changed and defining a conflict resolution policy that controls when requests to change the DRX parameters should be granted. The method also includes receiving, via the DRX API, a request from an application to change a DRX parameter for the UE. The UE is in wireless communication with a base station, and the application is configured to send data to the UE via a mobile network that comprises the base station. The method also includes determining, based at least in part on the conflict resolution policy, that the request should be granted and sending a command to the base station that causes the base station to communicate a new value of the DRX parameter to the UE.Type: ApplicationFiled: January 24, 2023Publication date: June 1, 2023Inventors: Xenofon FOUKAS, Bozidar RADUNOVIC, Yongguang ZHANG, Landon Prentice COX
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Publication number: 20230136356Abstract: To meet the stringent 5G radio access network (RAN) service requirements, layers one and two need to be processed in essentially real time. Thus, prompt anomaly detection is important to prevent negative impacts on customer experience, which is critical for mobile networks to meet the stringent service requirements. However, monitoring networks for anomalies is difficult due at least to (1) the resource constrained edge deployments in which the vRAN resides, (2) the variety of anomaly types and fault locations making anomalies difficult to detect, and (3) the low frequency of anomalies leading to unbalanced data sets for training, among others. The present application addresses these issues by decoupling anomaly detection at the infrastructure layer (servers, NICs, switches, etc.) from anomaly detection at the VNF layer (L1, high-DU, CU). This enables different techniques for identifying anomalies and for reducing the monitoring overhead that is tailored to each layer.Type: ApplicationFiled: January 18, 2022Publication date: May 4, 2023Applicant: Microsoft Technology Licensing, LLCInventors: Xenofon FOUKAS, Zhehui ZHANG, Bozidar RADUNOVIC
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Patent number: 11601882Abstract: A method for adjusting discontinuous reception (DRX) behavior of a user equipment (UE) to conserve energy use includes exposing a DRX application programming interface (API) that enables DRX parameters to be changed and defining a conflict resolution policy that controls when requests to change the DRX parameters should be granted. The method also includes receiving, via the DRX API, a request from an application to change a DRX parameter for the UE. The UE is in wireless communication with a base station, and the application is configured to send data to the UE via a mobile network that comprises the base station. The method also includes determining, based at least in part on the conflict resolution policy, that the request should be granted and sending a command to the base station that causes the base station to communicate a new value of the DRX parameter to the UE.Type: GrantFiled: June 15, 2021Date of Patent: March 7, 2023Assignee: Microsoft Technology Licensing, LLCInventors: Xenofon Foukas, Bozidar Radunovic, Yongguang Zhang, Landon Prentice Cox
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Publication number: 20220400432Abstract: A method for adjusting discontinuous reception (DRX) behavior of a user equipment (UE) to conserve energy use includes exposing a DRX application programming interface (API) that enables DRX parameters to be changed and defining a conflict resolution policy that controls when requests to change the DRX parameters should be granted. The method also includes receiving, via the DRX API, a request from an application to change a DRX parameter for the UE. The UE is in wireless communication with a base station, and the application is configured to send data to the UE via a mobile network that comprises the base station. The method also includes determining, based at least in part on the conflict resolution policy, that the request should be granted and sending a command to the base station that causes the base station to communicate a new value of the DRX parameter to the UE.Type: ApplicationFiled: June 15, 2021Publication date: December 15, 2022Inventors: Xenofon FOUKAS, Bozidar RADUNOVIC, Yongguang ZHANG, Landon Prentice COX
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Publication number: 20220386302Abstract: Aspects of the present disclosure relate to allocating RAN resources among RAN slices according to reinforcement learning techniques. For example, a network slice controller (NSC) may generate a RAN resource allocation and associated expected slice characteristics may be determined for each slice based on the RAN resource allocation. Resources of the RAN may be allocated accordingly, such that resulting actual slice characteristics may be observed and compared to the expected slice characteristics. A reward may be generated for the resource allocation, for example based on a difference between the expected and observed slice characteristics. RAN resource allocation and slice characteristic forecasting may be adapted according to such rewards. As a result, RAN resource allocation generation may improve, even in instances with changing or unknown network conditions.Type: ApplicationFiled: May 28, 2021Publication date: December 1, 2022Applicant: Microsoft Technology Licensing, LLCInventors: Bozidar RADUNOVIC, Xenofon FOUKAS, Manikanta KOTARU, Anuj KALIA
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Publication number: 20220377615Abstract: Described are examples for monitoring performance metrics of one or more workloads in a cloud-computing environment and reallocating compute resources based on the monitoring. Reallocating compute resources can include migrating workloads among nodes or other resources in the cloud-computing environment, reallocating hardware accelerator resources, adjusting transmit power for virtual radio access network (vRAN) workloads, and/or the like.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Inventors: Bozidar RADUNOVIC, Sanjeev MEHROTRA, Yongguang ZHANG, Paramvir BAHL, Xenofon FOUKAS
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Publication number: 20220377577Abstract: Described are examples for providing radio access network (RAN) analytics for a virtualized base station. An analytics engine includes a memory storing one or more parameters or instructions for operating the virtualized RAN and at least one processor coupled to the memory. The analytics engine is configured to perform multiple protocol layers of RAN processing for at least one cell at the virtualized base station. The analytics engine is configured to determine a time series of real-time metrics at two or more layers of the multiple protocol layers for the at least one cell or a user equipment (UE) connected to the at least one cell. The analytics engine is configured to correlate a time series for each of the two or more layers to detect a network condition. The analytics engine is configured to modify a configuration of the at least one cell based on the detected network condition.Type: ApplicationFiled: August 10, 2021Publication date: November 24, 2022Inventors: Bozidar RADUNOVIC, Xenofon FOUKAS, Yongguang ZHANG, Arun BHAMIDIMARRI
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Publication number: 20220377612Abstract: Described are examples for receiving, from one or more second virtual radio access network (vRAN) workloads operating one or more second cells, an indication of a measurement of at least a first signal transmitted by a first vRAN workload operating a first cell, computing, based on measurements of at least the first signal as received from the one or more second vRAN workloads, a boundary of the first cell, and adjusting, based on the boundary of the first cell, a transmit parameter of the first vRAN workload for transmitting signals in the first cell.Type: ApplicationFiled: May 18, 2021Publication date: November 24, 2022Inventors: Bozidar RADUNOVIC, Sanjeev MEHROTRA, Yongguang ZHANG, Paramvir BAHL, Xenofon FOUKAS
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Patent number: 11444806Abstract: In various examples there is a telecommunications network access point of a telecommunications network in which the control plane is implemented using a data center comprising a plurality of interconnected computation nodes. The access point comprises a memory holding a log of encapsulated control messages the control messages being messages of a control protocol of the telecommunications network. The access point has a processor configured, for a control message to be sent by the access point to a node in the data center, to: generate a message identifier; encapsulate the control message in a packet of a communications protocol of the data center, add the message identifier to a header of the encapsulated control message; send the encapsulated control message to the node of the data center; and store a record of the encapsulated control message and node of the control plane in the log.Type: GrantFiled: July 2, 2019Date of Patent: September 13, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Bozidar Radunovic, Christos Gkantsidis, Thomas Karagiannis, Parisa Jalili Marandi, Binh Quang Nguyen, Matthew John Balkwill
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Patent number: 11394581Abstract: In various examples there is a telecommunications network access point of a telecommunications network in which the control plane is implemented using a data center comprising a plurality of interconnected computation nodes. The access point comprises a memory holding a log of encapsulated control messages the control messages being messages of a control protocol of the telecommunications network. The access point has a processor configured, for a control message to be sent by the access point to a node in the data center, to: generate a message identifier; encapsulate the control message in a packet of a communications protocol of the data center, add the message identifier to a header of the encapsulated control message; send the encapsulated control message to the node of the data center; and store a record of the encapsulated control message and node of the control plane in the log.Type: GrantFiled: July 2, 2019Date of Patent: July 19, 2022Assignee: Microsoft Technology Licensing, LLCInventors: Bozidar Radunovic, Christos Gkantsidis, Thomas Karagiannis, Parisa Jalili Marandi, Binh Quang Nguyen, Matthew John Balkwill