Patents by Inventor Durga Prasad Satapathy
Durga Prasad Satapathy 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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Patent number: 8879386Abstract: In various embodiments, a method, computer-readable storage medium, and apparatus for scheduling prioritized best effort (BE) service flows through a wireless network base station includes a controller coupled to a memory. If any one of a plurality of BE service flows are congested, a minimum reserved traffic rate (MRTR) algorithm is used by the controller to ensure that at least a highest priority BE service flow is maintained at least at an associated MRTR. If none of the plurality of BE service flows are congested, a maximum sustained traffic rate (MSTR) algorithm is used by the controller to enable the highest priority BE service flow to be set to at least at an associated MSTR before lower priority service flows are increased. If none of the plurality of BE service flows are congested and each service flow is at their associated MSTR, the controller is configured to distribute any excess bandwidth to each service flow in accordance with an initial set of priority BE traffic flow ratios.Type: GrantFiled: March 1, 2012Date of Patent: November 4, 2014Assignee: Clearwire IP Holdings LLCInventors: Durga Prasad Satapathy, Sungki Park
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Patent number: 8731034Abstract: The present invention relates to a method, a computer readable medium, and a system of payload encoding and modulation and, more particularly, to a method, a computer readable medium, and a system of payload encoding and modulation for channel quality feedback. A method includes sending a Channel Quality Indicator (CQI) in a x-bit modulation scheme, and after sending the CQI, sending at least one CQI in a y-bit modulation scheme, the at least one CQI indicating one of an increment and a decrement of a previous CQI. The method further includes detecting a trigger event, and when the trigger event is detected, sending the CQI in the x-bit modulation scheme.Type: GrantFiled: March 22, 2011Date of Patent: May 20, 2014Assignee: Clearwire IP Holdings LLCInventors: Sungki Park, Durga Prasad Satapathy
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Patent number: 8717981Abstract: A first set of uplink contention slots is allocated for use by a first set of devices. A second set of uplink contention slots is allocated for use by a second set of devices. The first set of uplink contention slots and the second set of uplink contention slots may or may not share contention slots. The first set of uplink contention slots is communicated to the first set of devices. The second set of uplink contention slots is communicated to the second set of devices.Type: GrantFiled: May 1, 2008Date of Patent: May 6, 2014Assignee: Sprint Communications Company L.P.Inventors: Subir Varma, George A. Georgiou, Durga Prasad Satapathy
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Patent number: 8682392Abstract: A base station includes multiple transmitter-receiver elements coupled to multiple antennas. The activation of additional baseband signal processing resources, dynamically mapped via a programmable digital interface module to a subset of the original transmitter-receiver sets in the base station to double capacity of the system or facilitate simultaneous operation of multiple air interface technologies with minimal or no hardware modifications to the base station or cell site. With a base station having four transmitter-receivers, the system transmits and receives the same signal on all transmitter-receivers to provide a 4×2 downlink and a 1×4 uplink. The system can be reconfigured by splitting the transmitter-receiver sets into two logically separate units. An additional base station modem resource is activated to double the capacity of the radio system or to implement a different communication protocol allowing transition between technologies.Type: GrantFiled: December 27, 2011Date of Patent: March 25, 2014Assignee: Clearwire IP Holdings LLCInventors: Peter Gelbman, Durga Prasad Satapathy
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Publication number: 20130337871Abstract: A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.Type: ApplicationFiled: June 19, 2013Publication date: December 19, 2013Applicant: Clearwire IP Holdings LLCInventors: Sungki PARK, Durga Prasad Satapathy, Walter Rausch
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Patent number: 8605586Abstract: Systems and methods of balancing traffic load in a wireless communication network include calculating a load metric for each of a plurality of users, wherein each of the plurality of users, in operation, are in communication with a first base station using an overloaded carrier associated with the first base station. Such load metric for each user may include a plurality of metric factors related at least to an associated communication link. Based on the calculated load metric, a transfer-deserving user from the plurality of users may be determined. The transfer-deserving user may be associated with a highest value of an associated calculated load metric. For load balancing at the first base station, the associated communication link of the transfer-deserving user may be transferred from the overloaded carrier to a target carrier, wherein the target carrier may be associated with either the first base station or a second base station.Type: GrantFiled: March 14, 2011Date of Patent: December 10, 2013Assignee: Clearwire IP Holdings LLCInventors: Sungki Park, Durga Prasad Satapathy
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Patent number: 8588855Abstract: A wireless communication device is operated in a M by N multiple-input multiple-output (MIMO) mode. M is the number of antennas transmitting to the communication device from a first base station. N the number of receiving antennas and receivers. M and N are integers greater than one. The wireless communication device is operated in an M by N?1 MIMO mode while a first one of the N receiving antennas and a first one of the N receivers receives wireless communication from a second base station.Type: GrantFiled: March 30, 2012Date of Patent: November 19, 2013Assignee: Clearwire IP Holdings LLCInventors: Subir Varma, Durga Prasad Satapathy
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Publication number: 20130294342Abstract: Exemplary methods and systems may generally be implemented to allow a macro-network base station without access to a GPS reference signal to provide some or all of the functionality for which existing macro-network base stations typically rely on GPS. In a first aspect, an exemplary macro-network base station may determine its location using a location-determination technique that is based upon the angles of arrival of FM radio signals from nearby FM stations. In a second aspect, an exemplary macro-network base station may stabilize its local oscillator by phase-locking its local oscillator to an FM radio signal, and periodically adjusting its local oscillator to account for phase drift of the FM radio signal. And in a third aspect, an exemplary macro-network base station may synchronize its frame-start timing with a nearby base station using a frame-start timing signal that the base station has synchronized to frame transmissions from the nearby base station during a setup routine.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Inventors: Walter Rausch, Durga Prasad Satapathy
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Publication number: 20130294341Abstract: Exemplary methods and systems may generally be implemented to allow a macro-network base station without access to a GPS reference signal to provide some or all of the functionality for which existing macro-network base stations typically rely on GPS. In a first aspect, an exemplary macro-network base station may determine its location using a location-determination technique that is based upon the angles of arrival of FM radio signals from nearby FM stations. In a second aspect, an exemplary macro-network base station may stabilize its local oscillator by phase-locking its local oscillator to an FM radio signal, and periodically adjusting its local oscillator to account for phase drift of the FM radio signal. And in a third aspect, an exemplary macro-network base station may synchronize its frame-start timing with a nearby base station using a frame-start timing signal that the base station has synchronized to frame transmissions from the nearby base station during a setup routine.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Inventors: Walter Rausch, Durga Prasad Satapathy
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Patent number: 8570859Abstract: A system and method for interconnecting multiple mesh transport medium technologies is disclosed. Two nodes are part of a mesh sub-network using a first access technology. The two nodes have at least two paths using the first access technology that couple the two nodes together. A third path using a second access technology also couples the two nodes together.Type: GrantFiled: February 28, 2011Date of Patent: October 29, 2013Assignee: Sprint Spectrum L.P.Inventors: Durga Prasad Satapathy, Bruce E. Hoffman, Harold Wayne Johnson
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Patent number: 8515444Abstract: A signal quality feedback slot is periodically allocated to a wireless device in one out of every En frames. The variable n is greater than or equal to zero and less than Nmax. The variable E is an integer greater than one. The variable n is increased if an indicator of RF conditions satisfies a first criteria. The variable n is decreased to a minimum value if a plurality of retry requests from the wireless device satisfy a retry criteria.Type: GrantFiled: July 18, 2008Date of Patent: August 20, 2013Assignee: Clearwire IP Holdings LLCInventors: Subir Varma, Durga Prasad Satapathy
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Patent number: 8503945Abstract: A wireless communication device is operated in a M by N multiple-input multiple-output (MIMO) mode. M is the number of antennas transmitting to the communication device from a first base station. N the number of receiving antennas and receivers. M and N are integers greater than one. The wireless communication device is operated in an M by N-1 MIMO mode while a first one of the N receiving antennas and a first one of the N receivers receives wireless communication from a second base station.Type: GrantFiled: March 30, 2012Date of Patent: August 6, 2013Assignee: Clearwire IP Holdings LLCInventors: Subir Varma, Durga Prasad Satapathy
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Patent number: 8488548Abstract: A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.Type: GrantFiled: April 11, 2012Date of Patent: July 16, 2013Assignee: Clearwire IP Holdings LLCInventors: Sungki Park, Durga Prasad Satapathy, Walter Rausch
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Publication number: 20130077966Abstract: A base station includes multiple transmitter-receiver elements coupled to multiple antennas. The activation of additional baseband signal processing resources, dynamically mapped via a programmable digital interface module to a subset of the original transmitter-receiver sets in the base station to double capacity of the system or facilitate simultaneous operation of multiple air interface technologies with minimal or no hardware modifications to the base station or cell site. With a base station having four transmitter-receivers, the system transmits and receives the same signal on all transmitter-receivers to provide a 4×2 downlink and a 1×4 uplink. The system can be reconfigured by splitting the transmitter-receiver sets into two logically separate units. An additional base station modem resource is activated to double the capacity of the radio system or to implement a different communication protocol allowing transition between technologies.Type: ApplicationFiled: December 27, 2011Publication date: March 28, 2013Applicant: MobileSphere Holdings LLCInventors: Peter Gelbman, Durga Prasad Satapathy
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Publication number: 20120243591Abstract: The present invention relates to a method, a computer readable medium, and a system of payload encoding and modulation and, more particularly, to a method, a computer readable medium, and a system of payload encoding and modulation for channel quality feedback. A method includes sending a Channel Quality Indicator (CQI) in a x-bit modulation scheme, and after sending the CQI, sending at least one CQI in a y-bit modulation scheme, the at least one CQI indicating one of an increment and a decrement of a previous CQI. The method further includes detecting a trigger event, and when the trigger event is detected, sending the CQI in the x-bit modulation scheme.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Applicant: CLEAR WIRELSS LLCInventors: Sungki PARK, Durga Prasad SATAPATHY
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Publication number: 20120236712Abstract: Systems and methods of balancing traffic load in a wireless communication network include calculating a load metric for each of a plurality of users, wherein each of the plurality of users, in operation, are in communication with a first base station using an overloaded carrier associated with the first base station. Such load metric for each user may include a plurality of metric factors related at least to an associated communication link. Based on the calculated load metric, a transfer-deserving user from the plurality of users may be determined. The transfer-deserving user may be associated with a highest value of an associated calculated load metric. For load balancing at the first base station, the associated communication link of the transfer-deserving user may be transferred from the overloaded carrier to a target carrier, wherein the target carrier may be associated with either the first base station or a second base station.Type: ApplicationFiled: March 14, 2011Publication date: September 20, 2012Applicant: CLEAR WIRELESS, LLCInventors: Sungki PARK, Durga Prasad SATAPATHY
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Publication number: 20120195277Abstract: A system and method of a hybrid scheme of DL link adaptation in a network having mobile stations (MSs) in communication with a base station (BS). The system may include a mode decision module associated with the base station. The mode decision module may include one or more processors configured to select a first mode configuration for use during transmission of a first communication from the base station. The BS may receive first feedback information associated with the first communication, where the first feedback information includes a first mode recommendation and first channel information. Based on the first feedback information, the BS may generate a BS-derived mode configuration based on the first channel information and compare the first mode recommendation and the BS-derived mode configuration. Based on the comparison, the BS may determine a second mode configuration to use to configure a second communication.Type: ApplicationFiled: April 11, 2012Publication date: August 2, 2012Applicant: CLEARWIRE IP HOLDINGS LLCInventors: Sungki PARK, Durga Prasad SATAPATHY, Walter RAUSCH
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Publication number: 20120195241Abstract: In various embodiments, a system and method for providing uplink (UL) power control for a wireless mobile station (MS) includes, after transmission of an unanswered bandwidth request by the MS, incrementally boosting an UL transmit power of one or more subsequent bandwidth requests by the MS to a boosted UL power level at which UL bandwidth is allocated to the MS by the BS; selectively reporting the boosted UL power level to the BS immediately after the UL transmit power has been boosted; and selectively controlling the boosted UL power level by the BS responsive to the boosted UL power level reported to the BS. A MS is configured to carry out the UL power control method and a BS is configured to generate MS UL power control commands based, at least in part, upon the UL power level reported to the BS.Type: ApplicationFiled: January 28, 2011Publication date: August 2, 2012Applicant: CLEAR WIRELESS, LLCInventors: Chunmei LIU, Dhaval Dipak MEHTA, Sungki PARK, Masoud OLFAT, Durga Prasad SATAPATHY
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Patent number: 8233448Abstract: In various embodiments, a method, computer-readable storage medium, and apparatus for scheduling prioritized best effort (BE) service flows through a wireless network base station includes a controller coupled to a memory. If any one of a plurality of BE service flows are congested, a minimum reserved traffic rate (MRTR) algorithm is used by the controller to ensure that at least a highest priority BE service flow is maintained at least at an associated MRTR. If none of the plurality of BE service flows are congested, a maximum sustained traffic rate (MSTR) algorithm is used by the controller to enable the highest priority BE service flow to be set to at least at an associated MSTR before lower priority service flows are increased. If none of the plurality of BE service flows are congested and each service flow is at their associated MSTR, the controller is configured to distribute any excess bandwidth to each service flow in accordance with an initial set of priority BE traffic flow ratios.Type: GrantFiled: August 24, 2009Date of Patent: July 31, 2012Assignee: Clearwire IP Holdings LLCInventors: Durga Prasad Satapathy, Sungki Park
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Publication number: 20120163173Abstract: In various embodiments, a method, computer-readable storage medium, and apparatus for scheduling prioritized best effort (BE) service flows through a wireless network base station includes a controller coupled to a memory. If any one of a plurality of BE service flows are congested, a minimum reserved traffic rate (MRTR) algorithm is used by the controller to ensure that at least a highest priority BE service flow is maintained at least at an associated MRTR. If none of the plurality of BE service flows are congested, a maximum sustained traffic rate (MSTR) algorithm is used by the controller to enable the highest priority BE service flow to be set to at least at an associated MSTR before lower priority service flows are increased. If none of the plurality of BE service flows are congested and each service flow is at their associated MSTR, the controller is configured to distribute any excess bandwidth to each service flow in accordance with an initial set of priority BE traffic flow ratios.Type: ApplicationFiled: March 1, 2012Publication date: June 28, 2012Applicant: CLEAR WIRELESS, LLCInventors: Durga Prasad SATAPATHY, Sungki PARK