Patents by Inventor Kameswara Rao Medapalli
Kameswara Rao Medapalli 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: 10880884Abstract: Various methods and systems are provided for space, frequency and time domain coexistence of RF signals. In one example, among others, a communication device includes a coexistence manager capable of monitoring operating conditions of a cellular modem and a coexistence assistant capable of monitoring operating conditions of a wireless connectivity unit. The coexistence manager is capable of modifying operation of the modem and/or unit based on an operating condition change. In another example, a method includes detecting a change in antenna isolation and/or operating temperature of a FE filter, determining filtering characteristics of the FE filter based at least in part upon the change, and modifying communications of coexisting communication protocols based at least in part upon the filtering characteristics. In another example, a TX/RX configuration for coexisting communication protocols is determined and communications in a protocol is modified based at least in part upon the TX/RX configuration.Type: GrantFiled: October 17, 2017Date of Patent: December 29, 2020Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Kameswara Rao Medapalli, Florin Baboescu, Mark Gonikberg, Surendra Babu Mandava, Asish Makkattil Ratnan, Payel Banerjee, Nethi Kashi Viswanath, Sanjay Saha, Sachin Gupta, Neeraj Poojary, Yury Gonikberg, Sudhirkumar Prajapati, Steven Hall, Knut Terje Hermod Odman, Prasanna Desai, Shawn Ding, Suryakant Maharana, Bijoy Bhukania
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Patent number: 9929849Abstract: A method and system are provided in which a device that is operable to handle WiFi communication and WiMAX communication may receive downlink medium access protocol (MAP) information in a downlink sub-frame of a WiMAX frame and disable WiFi transmission during a portion of the downlink sub-frame based on the downlink MAP information. The disabled WiFi transmission may be enabled after data within the downlink sub-frame is decoded. The device may also receive uplink MAP information in the downlink sub-frame and may control a clear channel assessment associated with the WiFi transmission based on the uplink MAP information. The MAP information may comprise data or burst profile information and/or one or more physical control messages. A similar time domain approach may be utilized for coexistence between WiFi and long term evolution (LTE) coexistence, Bluetooth and WiMAX, and Bluetooth and LTE. Frame aggregation may be enabled to alleviate pending WiFi traffic.Type: GrantFiled: March 30, 2015Date of Patent: March 27, 2018Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventor: Kameswara Rao Medapalli
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Publication number: 20180054820Abstract: Various methods and systems are provided for space, frequency and time domain coexistence of RF signals. In one example, among others, a communication device includes a coexistence manager capable of monitoring operating conditions of a cellular modem and a coexistence assistant capable of monitoring operating conditions of a wireless connectivity unit. The coexistence manager is capable of modifying operation of the modem and/or unit based on an operating condition change. In another example, a method includes detecting a change in antenna isolation and/or operating temperature of a FE filter, determining filtering characteristics of the FE filter based at least in part upon the change, and modifying communications of coexisting communication protocols based at least in part upon the filtering characteristics. In another example, a TX/RX configuration for coexisting communication protocols is determined and communications in a protocol is modified based at least in part upon the TX/RX configuration.Type: ApplicationFiled: October 17, 2017Publication date: February 22, 2018Inventors: Kameswara Rao MEDAPALLI, Florin BABOESCU, Mark GONIKBERG, Surendra Babu MANDAVA, Asish Makkattil RATNAN, Payel BANERJEE, Nethi Kashi VISWANATH, Sanjay SAHA, Sachin GUPTA, Neeraj POOJARY, Yury GONIKBERG, Sudhirkumar PRAJAPATI, Steven HALL, Knut Terje Hermod ODMAN, Prasanna DESAI, Shawn DING, Suryakant MAHARANA, Bijoy BHUKANIA
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Patent number: 9826524Abstract: Various methods and systems are provided for space, frequency and time domain coexistence of RF signals. In one example, among others, a communication device includes a coexistence manager capable of monitoring operating conditions of a cellular modem and a coexistence assistant capable of monitoring operating conditions of a wireless connectivity unit. The coexistence manager is capable of modifying operation of the modem and/or unit based on an operating condition change. In another example, a method includes detecting a change in antenna isolation and/or operating temperature of a FE filter, determining filtering characteristics of the FE filter based at least in part upon the change, and modifying communications of coexisting communication protocols based at least in part upon the filtering characteristics. In another example, a TX/RX configuration for coexisting communication protocols is determined and communications in a protocol is modified based at least in part upon the TX/RX configuration.Type: GrantFiled: December 17, 2012Date of Patent: November 21, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Kameswara Rao Medapalli, Florin Baboescu, Mark Gonikberg, Surendra Babu Mandava, Asish Makkattil Ratnan, Payel Banerjee, Nethi Kashi Viswanath, Sanjay Saha, Sachin Gupta, Neeraj Poojary, Yury Gonikberg, Sudhirkumar Prajapati, Steven Hall, Knut Terje Hermod Odman, Prasanna Desai, Shawn Ding, Suryakant Maharana, Bijoy Bhukania
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Patent number: 9503173Abstract: A system and method for sharing antennas of a wireless communication device is provided. The wireless communication device leverages cellular antennas to improve data throughput by creating a multiple-in, multiple out (MIMO) operation for a wireless local area network (WLAN) connection. Antenna resources are dynamically allocated between the cellular antennas and the wireless antenna to provide improved throughput.Type: GrantFiled: August 28, 2013Date of Patent: November 22, 2016Assignee: BROADCOM CORPORATIONInventors: Evan Scott McCarthy, John Stuart Walley, Ling Su, Djordje Tujkovic, Joseph Saada, Kameswara Rao Medapalli
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Patent number: 9504059Abstract: A device with concurrent long-term evolution (LTE) and WLAN uplink transmission includes a WLAN transceiver coupled to an LTE transceiver via an interface. The LTE transceiver includes an LTE Layer-1 module that determines whether an LTE data downlink activity is scheduled for an LTE downlink sub-frame of an LTE time frame, based on information in a first portion of the LTE downlink sub-frame. When determination is made that the LTE data downlink activity is not scheduled for the LTE downlink sub-frame, a message may be communicated through the interface to notify the WLAN transceiver that the second portion of the LTE downlink sub-frame is available for WLAN communication. The LTE time frame includes multiple LTE downlink sub-frames each including the first portion and a second portion. The first portion provides the information that indicates whether the LTE data downlink activity is scheduled for the second portion of that LTE sub-frame.Type: GrantFiled: January 22, 2016Date of Patent: November 22, 2016Assignee: Broadcom CorporationInventors: Farouk Belghoul, Kameswara Rao Medapalli
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Publication number: 20160143049Abstract: A device with concurrent long-term evolution (LTE) and WLAN uplink transmission includes a WLAN transceiver coupled to an LTE transceiver via an interface. The LTE transceiver includes an LTE Layer-1 module that determines whether an LTE data downlink activity is scheduled for an LTE downlink sub-frame of an LTE time frame, based on information in a first portion of the LTE downlink sub-frame. When determination is made that the LTE data downlink activity is not scheduled for the LTE downlink sub-frame, a message may be communicated through the interface to notify the WLAN transceiver that the second portion of the LTE downlink sub-frame is available for WLAN communication. The LTE time frame includes multiple LTE downlink sub-frames each including the first portion and a second portion. The first portion provides the information that indicates whether the LTE data downlink activity is scheduled for the second portion of that LTE sub-frame.Type: ApplicationFiled: January 22, 2016Publication date: May 19, 2016Inventors: Farouk BELGHOUL, Kameswara Rao MEDAPALLI
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Patent number: 9301314Abstract: A device with concurrent long-term evolution (LTE) and WLAN uplink transmission includes a WLAN transceiver coupled to an LTE transceiver via an interface. The LTE transceiver includes an LTE Layer-1 module that determines whether an LTE data downlink activity is scheduled for an LTE downlink sub-frame of an LTE time frame, based on information in a first portion of the LTE downlink sub-frame. When determination is made that the LTE data downlink activity is not scheduled for the LTE downlink sub-frame, a message may be communicated through the interface to notify the WLAN transceiver that the second portion of the LTE downlink sub-frame is available for WLAN communication. The LTE time frame includes multiple LTE downlink sub-frames each including the first portion and a second portion. The first portion provides the information that indicates whether the LTE data downlink activity is scheduled for the second portion of that LTE sub-frame.Type: GrantFiled: November 25, 2013Date of Patent: March 29, 2016Assignee: Broadcom CorporationInventors: Farouk Belghoul, Kameswara Rao Medapalli
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Publication number: 20150207610Abstract: A method and system are provided in which a device that is operable to handle WiFi communication and WiMAX communication may receive downlink medium access protocol (MAP) information in a downlink sub-frame of a WiMAX frame and disable WiFi transmission during a portion of the downlink sub-frame based on the downlink MAP information. The disabled WiFi transmission may be enabled after data within the downlink sub-frame is decoded. The device may also receive uplink MAP information in the downlink sub-frame and may control a clear channel assessment associated with the WiFi transmission based on the uplink MAP information. The MAP information may comprise data or burst profile information and/or one or more physical control messages. A similar time domain approach may be utilized for coexistence between WiFi and long term evolution (LTE) coexistence, Bluetooth and WiMAX, and Bluetooth and LTE. Frame aggregation may be enabled to alleviate pending WiFi traffic.Type: ApplicationFiled: March 30, 2015Publication date: July 23, 2015Applicant: Broadcom CorporationInventor: Kameswara Rao MEDAPALLI
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Publication number: 20150098451Abstract: A device with concurrent long-term evolution (LTE) and WLAN uplink transmission includes a WLAN transceiver coupled to an LTE transceiver via an interface. The LTE transceiver includes an LTE Layer-1 module that determines whether an LTE data downlink activity is scheduled for an LTE downlink sub-frame of an LTE time frame, based on information in a first portion of the LTE downlink sub-frame. When determination is made that the LTE data downlink activity is not scheduled for the LTE downlink sub-frame, a message may be communicated through the interface to notify the WLAN transceiver that the second portion of the LTE downlink sub-frame is available for WLAN communication. The LTE time frame includes multiple LTE downlink sub-frames each including the first portion and a second portion. The first portion provides the information that indicates whether the LTE data downlink activity is scheduled for the second portion of that LTE sub-frame.Type: ApplicationFiled: November 25, 2013Publication date: April 9, 2015Applicant: BROADCOM CORPORATIONInventors: Farouk BELGHOUL, Kameswara Rao MEDAPALLI
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Patent number: 8995321Abstract: A method and system are provided in which a device that is operable to handle WiFi communication and WiMAX communication may receive downlink medium access protocol (MAP) information in a downlink sub-frame of a WiMAX frame and disable WiFi transmission during a portion of the downlink sub-frame based on the downlink MAP information. The disabled WiFi transmission may be enabled after data within the downlink sub-frame is decoded. The device may also receive uplink MAP information in the downlink sub-frame and may control a clear channel assessment associated with the WiFi transmission based on the uplink MAP information. The MAP information may comprise data or burst profile information and/or one or more physical control messages. A similar time domain approach may be utilized for coexistence between Win and long term evolution (LTE) coexistence, Bluetooth and WiMAX, and Bluetooth and LTE. Frame aggregation may be enabled to alleviate pending WiFi traffic.Type: GrantFiled: August 5, 2013Date of Patent: March 31, 2015Assignee: Broadcom CorporationInventor: Kameswara Rao Medapalli
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Publication number: 20150036656Abstract: A system and method for sharing antennas of a wireless communication device is provided. The wireless communication device leverages cellular antennas to improve data throughput by creating a multiple-in, multiple out (MIMO) operation for a wireless local area network (WLAN) connection. Antenna resources are dynamically allocated between the cellular antennas and the wireless antenna to provide improved throughput.Type: ApplicationFiled: August 28, 2013Publication date: February 5, 2015Inventors: Evan Scott McCarthy, John Stuart Walley, Ling Su, Djordje Tujkovic, Joseph Saada, Kameswara Rao Medapalli
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Publication number: 20140029535Abstract: A method and system are provided in which a device that is operable to handle WiFi communication and WiMAX communication may receive downlink medium access protocol (MAP) information in a downlink sub-frame of a WiMAX frame and disable WiFi transmission during a portion of the downlink sub-frame based on the downlink MAP information. The disabled WiFi transmission may be enabled after data within the downlink sub-frame is decoded. The device may also receive uplink MAP information in the downlink sub-frame and may control a clear channel assessment associated with the WiFi transmission based on the uplink MAP information. The MAP information may comprise data or burst profile information and/or one or more physical control messages. A similar time domain approach may be utilized for coexistence between Win and long term evolution (LTE) coexistence, Bluetooth and WiMAX, and Bluetooth and LTE. Frame aggregation may be enabled to alleviate pending WiFi traffic.Type: ApplicationFiled: August 5, 2013Publication date: January 30, 2014Applicant: Broadcom CorporationInventor: Kameswara Rao MEDAPALLI
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Publication number: 20110205986Abstract: A method and system are provided in which a device that is operable to handle WiFi communication and WiMAX communication may receive downlink medium access protocol (MAP) information in a downlink sub-frame of a WiMAX frame and disable WiFi transmission during a portion of the downlink sub-frame based on the downlink MAP information. The disabled WiFi transmission may be enabled after data within the downlink sub-frame is decoded. The device may also receive uplink MAP information in the downlink sub-frame and may control a clear channel assessment associated with the WiFi transmission based on the uplink MAP information. The MAP information may comprise data or burst profile information and/or one or more physical control messages. A similar time domain approach may be utilized for coexistence between WiFi and long term evolution (LTE) coexistence, Bluetooth and WiMAX, and Bluetooth and LTE. Frame aggregation may be enabled to alleviate pending WiFi traffic.Type: ApplicationFiled: February 9, 2011Publication date: August 25, 2011Inventor: Kameswara Rao Medapalli
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Patent number: 7734805Abstract: A method for scheduling transmissions to a plurality of users in a communication network determines a satisfaction metric and a dissatisfaction metric for each user in a given timeslot that is to be used for a next scheduled transmission to one of the users. Each user is assigned a weight based on a value of at least one of the user's satisfaction metric, the user's dissatisfaction metric and a rate requested by the user. The use having the highest weight is selected to be served the next scheduled transmission in the given timeslot.Type: GrantFiled: April 15, 2003Date of Patent: June 8, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Krishna Balachandran, Kenneth C. Budka, Arnab Das, Kameswara Rao Medapalli, Minothi Parulekar
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Patent number: 7349338Abstract: A scheduler and a method for scheduling transmissions to a plurality of users in a communication network assigns a higher target minimum throughput for receiving a next transmission to a user based on a quality of service (QoS) class of the user. A token count that tracks the user's achieved performance relative to a target minimum throughput Is determined for each user in given timeslot, and a weight is determined for each user based on one or more of the token count and a current rate requested by the user. A user having the highest weight as determined by a weight function is scheduled to be served the next transmission. User priority for scheduling may be downgraded if an average data rate requested by the user is less than the target minimum throughput.Type: GrantFiled: April 15, 2003Date of Patent: March 25, 2008Assignee: Lucent Technologies IncInventors: Krishna Balachandran, Kenneth C. Budka, Arnab Das, Kameswara Rao Medapalli, Minothi Parulekar
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Patent number: 7324545Abstract: An advance over the prior art is achieved through an efficient method to retransmit erroneous frames by identifying the users who are most likely to experience a frame error and requests retransmissions from them. Since the recovery is done by starting with the most likely, second most likely etc., the invention results in faster recovery of data. Moreover, the invention reduces the battery consumption of subsequent mobile nodes by suppressing the retransmission requests that were already made by nodes preceding it. A key element of the invention is to rank the set of receiver nodes in the order of decreasingly worse channel conditions, i.e., from worst to best. Hence, with K receiver nodes, a transmit node assigns rank 1 to a receiver node to which it has the poorest radio channel condition. Similarly, it assigns rank K to the receiver node to which it has the best radio channel condition.Type: GrantFiled: March 31, 2003Date of Patent: January 29, 2008Assignee: Lucent Technologies Inc.Inventors: Mooi Choo Chuah, Kameswara Rao Medapalli
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Patent number: 7283502Abstract: In a UMTS (universal mobile telecommunications system) Terrestrial Radio Access Network (UTRAN) based wireless system, a wireless network element (e.g., a base station) exchanges information with another wireless network element (e.g., a radio network controller) via data frames (uplink or downlink). Each data frame comprising a header portion and a payload portion, which comprises a QoS class indicator field. Illustratively, the eight bit spare extension field of a UTRAN data frame (uplink or downlink) is used to convey a four bit payload type indicator and a four bit QoS class indicator.Type: GrantFiled: September 21, 2000Date of Patent: October 16, 2007Assignee: Lucent Technologies Inc.Inventors: Santosh P Abraham, Mooi Choo Chuah, Kameswara Rao Medapalli, Ashwin Sampath
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Patent number: 7171160Abstract: An advance over the prior art is achieved through an efficient method for the dynamic selection of frequencies with low occupancy in a manner that results in minimizing the search for such frequencies and the risk of a large of number of nodes choosing the same frequency. A method for dynamically selecting the frequencies according to the invention includes the following parts. A channel loading indicator that determines if the mobile node needs to look for a new channel. A channel search algorithm that quickly determines the new channel to be used. A tracking algorithm that remembers the channels that were most recently determined to be loaded and hence should be avoided in the near future. In one embodiment of the invention a method of selecting frequencies for use by a device in a wireless communications network is presented.Type: GrantFiled: June 30, 2003Date of Patent: January 30, 2007Assignee: Lucent Technologies Inc.Inventors: Mooi Choo Chuah, Kameswara Rao Medapalli
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Publication number: 20040266351Abstract: An advance over the prior art is achieved through an efficient method for the dynamic selection of frequencies with low occupancy in a manner that results in minimizing the search for such frequencies and the risk of a large of number of nodes choosing the same frequency. A method for dynamically selecting the frequencies according to the invention includes the following parts. A channel loading indicator that determines if the mobile node needs to look for a new channel. A channel search algorithm that quickly determines the new channel to be used. A tracking algorithm that remembers the channels that were most recently determined to be loaded and hence should be avoided in the near future. In one embodiment of the invention a method of selecting frequencies for use by a device in a wireless communications network is presented.Type: ApplicationFiled: June 30, 2003Publication date: December 30, 2004Inventors: Mooi Choo Chuah, Kameswara Rao Medapalli