Patents by Inventor Rangsan Leelahakriengkrai
Rangsan Leelahakriengkrai 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: 20230037701Abstract: A Shared Cell (SC) Controller uses deployment information, radio resource utilization measurements, cell load measurements, signal quality measurement, operator's policies and radio capabilities to make decisions on system configuration, re-configuration, and channel allocation related to the Shared Cell groups. The SC Controller may also use artificial intelligence/machine learning to predict future system state when making decisions on system configuration and channel allocation. The SC Controller can be implemented in the context of using a CBRS system, the ORAN architecture, and the Shared Cell group of Radio Units (RUs). SC Controller can be implemented as part of the Non-Real Time Radio Intelligent Controller (Non-RT RIC). The SC Controller interfaces with the Citizens Broadband Radio Service Device (CBSD) Controller, and the SC Controller sends the Shared Cell group information to the O-RU Controller so that the O-RU Controller can configure the radio components.Type: ApplicationFiled: July 15, 2022Publication date: February 9, 2023Applicant: MAVENIR NETWORKS, INC.Inventors: Ana Lucia Pinheiro, Rangsan Leelahakriengkrai
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Publication number: 20230040563Abstract: A wireless communications system includes radio components (O-RU, O-DU, O-CU), an ORAN Non-Real-Time RAN Intelligent Controller (Non-RT RIC) framework, an O-RU Controller and a CBSD Controller interfacing with a Spectrum Access System (SAS) using the Wireless Innovation Forum (WINNF) CBSD-SAS Interface. An example of CBSD Controller is a Domain Proxy (DP) defined by WINNF. The CBSD Controller is disclosed as an application belonging to the Non-RT RIC. This application could be an rApp. The Non RT MC Framework operates as a broker to route information between the O-RU Controller and the CBSD Controller. Data types are defined to be exchanged over the R1 interface.Type: ApplicationFiled: June 17, 2022Publication date: February 9, 2023Applicant: Mavenir Systems, Inc.Inventors: Ana Lucia Pinheiro, Rangsan Leelahakriengkrai, Wessam Afifi Ahmed, Rasiklal Kachhla, Neil Philip Piercy, Prateek Bidwalkar, Peter McCann, Rajarajan Sivaraj
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Patent number: 9635650Abstract: A technique for reducing a time delay between an application output at a subscriber station and uplink resource allocation for the subscriber station includes scheduling, between periodic uplink resource allocations, one or more probe uplink resource allocations for the subscriber station. Next, respective information in at least one of the one or more probe uplink resource allocations is received at an access point. Finally, subsequent periodic uplink resource allocations are scheduled based on at least one of the one or more probe uplink resource allocations.Type: GrantFiled: June 16, 2014Date of Patent: April 25, 2017Assignee: Google Technology Holdings LLCInventors: Ivan N. Vukovic, Rangsan Leelahakriengkrai
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Patent number: 9173140Abstract: Systems and techniques for handover management in wireless communication networks. An apparatus, such as a base station, receives information relating to load conditions and computes handover threshold information based on the information relating to the load conditions. The information relating to the load conditions may comprise information received from other base stations, and the base station may in turn share its own information. Information may be shared through direct communication between base stations, or may be managed by a controller. Handover thresholds may be set for user devices based on the load metric information.Type: GrantFiled: December 21, 2011Date of Patent: October 27, 2015Assignee: Nokia Solutions and Networks OyInventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Patent number: 9107118Abstract: A method, a system and an evolved nodeB (eNodeB) that enable user equipment (UE) to switch between carrier groups in a multi-carrier network. A carrier selection and switching (CSS) utility identifies a first and a second set of pre-configured groups of carrier frequencies that are subsequently assigned to a particular UE. The CSS utility notifies the UE of the assigned, pre-configured groups of carrier frequencies and provides the UE with system parameters associated with the first and second pre-configured groups of carrier frequencies. The CSS utility signals the UE to initiate communication via the first preconfigured group of carriers. Based on the occurrence of pre-established conditions, the CSS utility utilizes a switch signal to indicate via physical downlink control channel (PDCCH) to the UE (a) when to begin utilizing the second group of preconfigured carrier frequencies and (b) when to make subsequent switches between carrier groups.Type: GrantFiled: October 21, 2010Date of Patent: August 11, 2015Assignee: Google Technology Holdings LLCInventors: Rangsan Leelahakriengkrai, Igor Filipovich, Rapeepat Ratasuk, Ivan N. Vukovic
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Patent number: 8897798Abstract: Systems and techniques for scheduling of use of resources by wireless devices and allocation of resources among devices. Information is received relating to channel efficiency experienced by a user equipment and also to the channel efficiency experienced by other user equipments. The information may include channel gain. Scheduling and resource allocation are performed so as to provide service to each device while minimizing interference penalties imposed by devices on one another. Scheduling and resource allocation may be evaluated and conducted through a number of mechanisms, such as ranking users according to transmit power, ranking user equipments according to target signal to noise ratios, and evaluation of relative advantages to users with the evaluation being performed resource block by resource block. The various metrics take into account both advantages to a particular user equipment under consideration and detrimental effects on other user equipment.Type: GrantFiled: December 16, 2011Date of Patent: November 25, 2014Assignee: Nokia Siemens Networks OyInventors: Rajeev Agrawal, Naveen Arulselvan, Suresh Kalyanasundaram, Rangsan Leelahakriengkrai, Balamurali Natarajan, Hua Xu
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Publication number: 20140293931Abstract: A technique for reducing a time delay between an application output at a subscriber station and uplink resource allocation for the subscriber station includes scheduling, between periodic uplink resource allocations, one or more probe uplink resource allocations for the subscriber station. Next, respective information in at least one of the one or more probe uplink resource allocations is received at an access point. Finally, subsequent periodic uplink resource allocations are scheduled based on at least one of the one or more probe uplink resource allocations.Type: ApplicationFiled: June 16, 2014Publication date: October 2, 2014Inventors: Ivan N. Vukovic, Rangsan Leelahakriengkrai
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Patent number: 8767596Abstract: A user equipment and method for contention-based uplink access to a base station. Contention-based configuration data identifies multiple contention-based access zones along with minimum power headroom values for each contention-based access zone. The user equipment devices can randomly select a demodulation reference signal parameter value when transmitting on a selected contention-based access zone.Type: GrantFiled: August 19, 2010Date of Patent: July 1, 2014Assignee: Motorola Mobility LLCInventors: Rapeepat Ratasuk, Igor Filipovich, Rangsan Leelahakriengkrai, Ivan N. Vukovic
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Patent number: 8755811Abstract: A technique for reducing a time delay between an application output at a subscriber station and uplink resource allocation for the subscriber station includes scheduling, between periodic uplink resource allocations, one or more probe uplink resource allocations for the subscriber station. Next, respective information in at least one of the one or more probe uplink resource allocations is received at an access point. Finally, subsequent periodic uplink resource allocations are scheduled based on at least one of the one or more probe uplink resource allocations.Type: GrantFiled: July 12, 2012Date of Patent: June 17, 2014Assignee: Motorola Mobility LLCInventors: Ivan N. Vukovic, Rangsan Leelahakriengkrai
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Patent number: 8711789Abstract: A base station employs control signaling for contention-based uplink access from user equipment devices to the base station. Contention-based access configuration is performed via physical downlink control channel signaling. Configuration data sent to the user equipment devices identifies multiple contention-based access zones, along with minimum power headroom values for each contention-based access zone. A probability factor may be used to lower collision possibility by influencing whether the user equipment devices perform contention-based uplink access.Type: GrantFiled: August 19, 2010Date of Patent: April 29, 2014Assignee: Motorola Mobility LLCInventors: Rapeepat Ratasuk, Igor Filipovich, Rangsan Leelahakriengkrai, Ivan N. Vukovic
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Patent number: 8625442Abstract: A wireless communication system as described here employs control signaling for contention-based uplink access from user equipment devices to a base station. Contention-based access configuration is performed via physical downlink control channel signaling. Configuration data sent to the user equipment devices identifies multiple contention-based access zones, along with minimum power headroom values for each contention-based access zone. A probability factor may also be used to lower collision possibility by influencing whether the user equipment devices perform contention-based uplink access. An uplink grant message can be used to acknowledge contention-based transmission; contention resolution is achieved implicitly via the uplink grant.Type: GrantFiled: August 19, 2010Date of Patent: January 7, 2014Assignee: Motorola Mobility LLCInventors: Rapeepat Ratasuk, Igor Filipovich, Rangsan Leelahakriengkrai, Ivan N. Vukovic
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Patent number: 8594672Abstract: Systems and techniques for managing the use of almost blank subframes in wireless communication systems. Base stations in a wireless network monitor load information affecting network nodes. Load information may be in the form of load metric information. The load information may be exchanged between system elements, and an almost blank subframe proportioning may be updated by one or more of the base stations, and information relating to the updated proportioning. The updated almost blank subframe proportioning may be used in scheduling and load metric calculation, as well as almost blank subframe patterning. Updating of almost blank subframe information and load metric information may be performed iteratively.Type: GrantFiled: December 21, 2011Date of Patent: November 26, 2013Assignee: Nokia Siemens Networks OyInventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130084865Abstract: Systems and techniques for managing the use of almost blank subframes in wireless communication systems. Base stations in a wireless network monitor load information affecting network nodes. Load information may be in the form of load metric information. The load information may be exchanged between system elements, and an almost blank subframe proportioning may be updated by one or more of the base stations, and information relating to the updated proportioning. The updated almost blank subframe proportioning may be used in scheduling and load metric calculation, as well as almost blank subframe patterning. Updating of almost blank subframe information and load metric information may be performed iteratively.Type: ApplicationFiled: December 21, 2011Publication date: April 4, 2013Inventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130084864Abstract: Systems and techniques for handover management in wireless communication networks. An apparatus, such as a base station, receives information relating to load conditions and computes handover threshold information based on the information relating to the load conditions. The information relating to the load conditions may comprise information received from other base stations, and the base station may in turn share its own information. Information may be shared through direct communication between base stations, or may be managed by a controller. Handover thresholds may be set for user devices based on the load metric information.Type: ApplicationFiled: December 21, 2011Publication date: April 4, 2013Inventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
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Publication number: 20130072213Abstract: Systems and techniques for scheduling of use of resources by wireless devices and allocation of resources among devices. Information is received relating to channel efficiency experienced by a user equipment and also to the channel efficiency experienced by other user equipments. The information may include channel gain. Scheduling and resource allocation are performed so as to provide service to each device while minimizing interference penalties imposed by devices on one another. Scheduling and resource allocation may be evaluated and conducted through a number of mechanisms, such as ranking users according to transmit power, ranking user equipments according to target signal to noise ratios, and evaluation of relative advantages to users with the evaluation being performed resource block by resource block. The various metrics take into account both advantages to a particular user equipment under consideration and detrimental effects on other user equipment.Type: ApplicationFiled: December 16, 2011Publication date: March 21, 2013Inventors: Rajeev Agrawal, Naveen Arulselvan, Suresh Kalyanasundaram, Rangsan Leelahakriengkrai, Balamurali Natarajan, Hua Xu
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Patent number: 8311013Abstract: A method, a network base station, and a user communication device for transmitting control data are disclosed. A processor 210 may encode a rescue frame 502 of a set of frames with a higher rescue overhead to data ratio. The processor 210 may encode an ancillary frame 504 of the set of frames with a lower rescue overhead to data ratio. A transceiver 240 may transmit the set of frames.Type: GrantFiled: October 28, 2009Date of Patent: November 13, 2012Assignee: Motorola Mobility LLCInventors: Philip J. Fleming, Rangsan Leelahakriengkrai, Robert S. Nikides, Ivan N. Vukovic
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Publication number: 20120275421Abstract: A technique for reducing a time delay between an application output at a subscriber station and uplink resource allocation for the subscriber station includes scheduling, between periodic uplink resource allocations, one or more probe uplink resource allocations for the subscriber station. Next, respective information in at least one of the one or more probe uplink resource allocations is received at an access point. Finally, subsequent periodic uplink resource allocations are scheduled based on at least one of the one or more probe uplink resource allocations.Type: ApplicationFiled: July 12, 2012Publication date: November 1, 2012Applicant: MOTOROLA MOBILITY LLCInventors: Ivan N. Vukovic, Rangsan Leelahakriengkrai
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Patent number: 8244265Abstract: A technique for reducing a time delay between an application output at a subscriber station and uplink resource allocation for the subscriber station includes scheduling, between periodic uplink resource allocations, one or more probe uplink resource allocations for the subscriber station. Next, respective information in at least one of the one or more probe uplink resource allocations is received at an access point. Finally, subsequent periodic uplink resource allocations are scheduled based on at least one of the one or more probe uplink resource allocations.Type: GrantFiled: November 28, 2007Date of Patent: August 14, 2012Assignee: Motorola Mobility LLCInventors: Ivan N. Vukovic, Rangsan Leelahakriengkrai
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Publication number: 20120099537Abstract: A method, a system and an evolved nodeB (eNodeB) that enable user equipment (UE) to switch between carrier groups in a multi-carrier network. A carrier selection and switching (CSS) utility identifies a first and a second set of pre-configured groups of carrier frequencies that are subsequently assigned to a particular UE. The CSS utility notifies the UE of the assigned, pre-configured groups of carrier frequencies and provides the UE with system parameters associated with the first and second pre-configured groups of carrier frequencies. The CSS utility signals the UE to initiate communication via the first preconfigured group of carriers. Based on the occurrence of pre-established conditions, the CSS utility utilizes a switch signal to indicate via physical downlink control channel (PDCCH) to the UE (a) when to begin utilizing the second group of preconfigured carrier frequencies and (b) when to make subsequent switches between carrier groups.Type: ApplicationFiled: October 21, 2010Publication date: April 26, 2012Applicant: Motorola, Inc.Inventors: Rangsan Leelahakriengkrai, Igor Filipovich, Rapeepat Ratasuk, Ivan N. Vukovic
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Publication number: 20120044877Abstract: A user equipment and method for contention-based uplink access to a base station. Contention-based configuration data identifies multiple contention-based access zones along with minimum power headroom values for each contention-based access zone. The user equipment devices can randomly select a demodulation reference signal parameter value when transmitting on a selected contention-based access zone.Type: ApplicationFiled: August 19, 2010Publication date: February 23, 2012Applicant: MOTOROLA, INC.Inventors: Rapeepat Ratasuk, Igor Filipovich, Rangsan Leelahakriengkrai, Ivan N. Vukovic