Patents by Inventor Christopher Gerard Lott
Christopher Gerard Lott 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: 9078266Abstract: Access terminals are adapted to facilitate discontinuous transmission (DTX). According to one example, an access terminal can employ a short timescale DTX mode and a long timescale DTX mode independent of one another. The access terminal can determine whether a first set of predetermined factors are present. When the first set of factors are determined to be present, the access terminal may enable a short timescale DTX mode, independent of whether a long timescale DTX mode is enabled or not. A determination may also be made whether a second set of predetermined factors are present. When the second set of predetermined factors are determined to be present, the access terminal may enable a long timescale DTX mode, independent of whether the short timescale DTX mode is enabled or not. Other aspects, embodiments, and features are also included.Type: GrantFiled: February 26, 2013Date of Patent: July 7, 2015Assignee: QUALCOMM IncorporatedInventors: Jun Hu, Rashid Ahmed Akbar Attar, Donna Ghosh, Christopher Gerard Lott, Linhai He
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Patent number: 9065634Abstract: Aspects of the present disclosure are directed to apparatuses and methods capable of selective acknowledgement of packets from an access probe. In one aspect, an apparatus includes: a transceiver configured to receive a set of frames associated with an access probe message from a wireless node, wherein the access probe message includes a plurality of frames, and the set of frames comprises a subset of the plurality of frames; and a processing system configured to generate a selective acknowledgement message based on a determination of whether each frame in the set of frames is received correctly. The acknowledgement includes an indication of receipt for at least one frame in the set of frames. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: February 4, 2013Date of Patent: June 23, 2015Assignee: QUALCOMM IncorporatedInventors: Jing Sun, Rashid Ahmed Akbar Attar, Ravindra Manohar Patwardhan, Christopher Gerard Lott
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Publication number: 20150105073Abstract: Access terminals are adapted to communicate with registration servers to enable a registration server to perform timer-based registrations on behalf of an access terminal. The access terminal can cease performing such timer-based registrations as long as the registration server performs the registrations, and may power down until event data is available for transmission or reception. When a registration server performs timer-based registrations on behalf of an access terminal, the registration server can periodically communicate with a network entity to conduct the timer-based registrations for the access terminal. The network entity can receive a timer-based registration message from a registrations server for registering an access terminal. In response to such a message, the network entity can register the access terminal. Sensors and controllers may be used with some embodiments to collect and analyze data and for potentially taking action.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Ravindra Manohar Patwardhan, Rashid Ahmed Akbar Attar, Christopher Gerard Lott
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Patent number: 8989041Abstract: Apparatus and methods are disclosed for adapting the power of an access probe transmission, in accordance with a reverse link underload indicator provided by the base station. In one example, the base station can transmit a one-bit reverse link underload indicator as an information element broadcasted within a general page message (GPM). Here, the reverse link underload indicator can indicate whether a measured rise-over-thermal (RoT) at the base station is less than a given threshold. The access terminal may accordingly reduce the initial transmit power of an access probe transmission in the case of a reverse link underload condition, as this condition would indicate that the base station could accommodate reduced power access probe transmissions without substantially decreasing the probability of a quick detection of the access attempt. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: January 23, 2013Date of Patent: March 24, 2015Assignee: QUALCOMM IncorporatedInventors: Christopher Gerard Lott, Jing Sun, Rashid Ahmed Akbar Attar, Linhai He, Ravindra Manohar Patwardhan
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Patent number: 8971885Abstract: Access terminals and network nodes are adapted to conduct access terminal registrations. In one example, an access terminal may obtain a data message for transmission, and registration information associated with the access terminal. The access terminal may send a message including the data message and the registration information. A network node can receive a message from an access terminal, where the received message includes a data message and access terminal registration information. The network node can register the access terminal with a network based on the access terminal registration information included in the received message. The network node can also process the data message included in the received message. Other aspects, embodiments, and features are also claimed and described.Type: GrantFiled: October 30, 2012Date of Patent: March 3, 2015Assignee: QUALCOMM IncorporatedInventors: Ravindra Manohar Patwardhan, Rashid Ahmed Akbar Attar, Christopher Gerard Lott, Jun Ma
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Publication number: 20150057039Abstract: Distributed antenna systems (DASs) can include a plurality of spatially separated remote antenna units. According to at least one example, a first group of remote antenna units can simulcast downlink transmissions on a first carrier with a particular sector identity (ID). A second group of remote antenna units, including at least one different remote antenna unit from the first group, can simulcast downlink transmissions on a second carrier with the same sector ID. According to at least one other example, two or more remote antenna units which include respective coverage areas that are non-adjacent to one another can be employed to simulcast downlink transmissions.Type: ApplicationFiled: October 30, 2014Publication date: February 26, 2015Inventors: Joseph B Soriaga, Christopher Gerard Lott, Jing Sun, Kambiz Azarian Yazdi, Rashid Ahmed Akbar Attar, Radhika Gowaikar, Donna Ghosh
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Publication number: 20150055528Abstract: Access terminals are adapted to facilitate discontinuous transmission (DTX) employable during active transmissions. According to one example, an access terminal may be actively transmitting a plurality of frames on a reverse link channel. The access terminal can autonomously implement a DTX operation during the active reverse link transmissions, in which a transmitter circuit is powered down for periods of time less than a duration of one frame. As a result, reverse link transmissions are punctured during the powered down periods. Other aspects, embodiments, and features are also included.Type: ApplicationFiled: August 26, 2013Publication date: February 26, 2015Applicant: QUALCOMM IncorporatedInventors: Jing SUN, Rashid Ahmed Akbar Attar, Christopher Gerard Lott, Joseph B. Soriaga, Jun Hu
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Publication number: 20150043337Abstract: Various apparatuses and methods for transmitting uplink data of an application at a user equipment are provided. In one aspect of the disclosure, uplink data of an application at a user equipment (UE) is transmitted to a network. A first amount of the uplink data expected to be buffered at a radio link control (RLC) layer is determined based on a latency of the application. A second amount of the uplink data available for transmission at the RLC layer is determined based on information provided by a modem of the UE. A data rate of the application is dynamically adjusted based on a difference between the first amount and second amount of the uplink data. In another aspect of the disclosure, an amount of the application data buffered at the RLC layer is maintained to be greater than a predetermined threshold that sets a Happy bit at an unhappy setting.Type: ApplicationFiled: February 11, 2014Publication date: February 12, 2015Applicant: QUALCOMM IncorporatedInventors: Sitaramanjaneyulu Kanamarlapudi, Venkata Ramanan Venkatachalam Jayaraman, Rohit Kapoor, Rashid Ahmed Akbar Attar, Christopher Gerard Lott
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Patent number: 8953444Abstract: A method of communicating in a wireless network including receiving effective load values for sectors accessible to an access terminal of the wireless network. The effective load values represent effective loads on the sectors. The method also includes receiving pilot signal channel quality values of the sectors and selecting a serving sector, for the access terminal based on the effective load values and the pilot signal channel quality values.Type: GrantFiled: June 23, 2011Date of Patent: February 10, 2015Assignee: QUALCOMM IncorporatedInventors: Donna Ghosh, Christopher Gerard Lott, Shweta Nandakumar, Rashid Ahmed Akbar Attar, Vinod V. Menon, Chunhao Chen, Kambiz Azarian-Yazdi, Radhika Gowaikar
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Patent number: 8942698Abstract: Access terminals are adapted to communicate with registration servers to enable a registration server to perform timer-based registrations on behalf of an access terminal. The access terminal can cease performing such timer-based registrations as long as the registration server performs the registrations, and may power down until event data is available for transmission or reception. When a registration server performs timer-based registrations on behalf of an access terminal, the registration server can periodically communicate with a network entity to conduct the timer-based registrations for the access terminal. The network entity can receive a timer-based registration message from a registrations server for registering an access terminal. In response to such a message, the network entity can register the access terminal. Sensors and controllers may be used with some embodiments to collect and analyze data and for potentially taking action.Type: GrantFiled: September 13, 2012Date of Patent: January 27, 2015Assignee: QUALCOMM IncorporatedInventors: Ravindra Manohar Patwardhan, Rashid Ahmed Akbar Attar, Christopher Gerard Lott
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Publication number: 20150017940Abstract: Aspects of the present disclosure relate to apparatuses and methods for performing adaptive receive-diversity (RxD) to improve power consumption using multiple antennas/receivers. In one aspect, a first receive-diversity (RxD) state is enabled at an access terminal utilizing two receive chains for a communication link. Link quality metrics corresponding to the communication link are determined. The access terminal selectively switches from the first RxD state to a second RxD state utilizing three or more receive chains dependent upon the link quality metrics, such that the energy per bit of the second RxD state is more energy efficient than the energy per bit of the first RxD state.Type: ApplicationFiled: July 10, 2013Publication date: January 15, 2015Inventors: Joseph B. SORIAGA, Jun Hu, Christopher Gerard Lott, Rashid Ahmed Akbar Attar
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Patent number: 8934939Abstract: In a wireless communications system, a serving base station performs outer and closed power control for an overhead channel and a traffic channel for data, either of which can carry an acknowledgement (Ack) channel and Channel Quality Indicator (CQI) channel on an uplink from User Equipment (UE). In an exemplary aspect, data packet communication is implemented in 3GPP LTE Rel. 8 wherein the uplink has a Single Carrier Frequency Division Multiplex (SC-FDM) uplink waveform. The UE performs open loop power control by a determining transmit power spectral density value by using received energy per symbol for a reference signal.Type: GrantFiled: September 20, 2012Date of Patent: January 13, 2015Assignee: QUALCOMM IncorporatedInventors: Rashid Ahmed Akbar Attar, Donna Ghosh, Christopher Gerard Lott
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Patent number: 8923125Abstract: A method of regulating data flow in a wireless communication network includes: collecting data regarding dynamic loading of sector-carrier pairs (pilots) in communication sectors of the wireless communication network; obtaining data rates for data flows of the pilots to access terminals within the wireless communication network; determining one or more pilots to use for conveying data in the wireless communication network based on the data rates and the dynamic loading; and altering data flow over the pilots by at least one of changing a data rate over at least one of the pilots or changing a combination of pilots used by the wireless communication network for conveying data to increase total data flow.Type: GrantFiled: October 21, 2009Date of Patent: December 30, 2014Assignee: QUALCOMM IncorporatedInventors: Christopher Gerard Lott, Donna Ghosh, Rashid Ahmed Akbar Attar, Peter John Black
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Publication number: 20140362160Abstract: Aspects of the present disclosure provide an apparatus and method for modem-assisted video telephony. As one example, a user equipment (UE) utilizes a modem to perform video telephony (VT) communication with a remote device through a wireless network. The UE determines a network metric indicative of congestion in the wireless network based on modem information obtained from the modem, independent of feedback information received from the remote device. The UE dynamically adjusts a data rate of the VT communication by an amount proportional to a quantity based on the network metric.Type: ApplicationFiled: December 3, 2013Publication date: December 11, 2014Applicant: Qualcomm IncorporatedInventors: Venkata Ramanan Venkatachalam Jayaraman, Rohit Kapoor, Rashid Ahmed Akbar Attar, Christopher Gerard Lott
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Patent number: 8842555Abstract: In an embodiment, a rate-adaptation unit may be configured to receive local as well as end-to-end feedback information associated with data transmission (such as data delay, packet loss, transmit power headroom, channel condition; sector loading, the amount of buffered data, etc.) from a wireless access module in communication with wireless/wired networks, and adapt the real-time information encoding in accordance with such feedback information.Type: GrantFiled: December 21, 2005Date of Patent: September 23, 2014Assignee: Qualcomm IncorporatedInventors: Peerapol Tinnakornsrisuphap, Christopher Gerard Lott, Guan-Ming Su
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Publication number: 20140247761Abstract: A wireless communications power saving method and apparatus is provided. The method includes, when no reverse link traffic exists and no forward link traffic has been received for a predetermined amount of time, establishing, at a terminal, a reverse link transmission pilot signal duty cycle, and boosting overhead channel signal transmission power during ON slots and gating overhead channel and pilot signal transmission power during OFF slots. The design further includes estimating, at the terminal, an available data transmission rate, determining an actual data transmission rate, setting a terminal transmission duty cycle for a next period based on the estimated available data transmission rate, the actual data transmission rate, and a margin of error, and transmitting data from the terminal according to the terminal transmission duty cycle.Type: ApplicationFiled: May 9, 2014Publication date: September 4, 2014Applicant: Qualcomm IncorporatedInventors: Jun Hu, Donna Ghosh, Rashid Ahmed Akbar Attar, Linhai He, Christopher Gerard Lott
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Publication number: 20140226550Abstract: A wireless communications power saving method and apparatus is provided. The method includes establishing a circular buffer configured to maintain a number of most recently encountered frame delay times and waiting a frame delay time after receiving a further frame before the station enters a power save state. Frame delay time is a period equal to a largest most recently encountered frame delay period in the circular buffer. The method further determines, at a station, a dormancy time based on a number of data frames received since the station transitioned from an inactive mode to an active mode, a packet transmission rate, and a data frame time interval representing time between data frames received at the station, and causes the station to switch to a further inactive mode if a next packet is not received within the dormancy time after receipt of a previous packet.Type: ApplicationFiled: April 22, 2014Publication date: August 14, 2014Applicant: Qualcomm IncorporatedInventors: Linhai He, Akbar Rashid Ahmed Attar, Christopher Gerard Lott, Donna Ghosh
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Patent number: 8797850Abstract: In a particular embodiment, a method is disclosed that includes receiving a feedback message at a transmitter, the feedback message including an indication of a magnitude of congestion and a sustainable rate of data transmission at a receiver. The method also includes determining a decongestion rate and a decongestion time based on at least one of the sustainable rate of data transmission and the magnitude of congestion when the magnitude of congestion satisfies a threshold value. The method further includes sending data at the decongestion rate from the transmitter to the receiver for the decongestion time. The method also includes adjusting a data transmission rate at the transmitter to the sustainable rate of data transmission after the decongestion time is ended.Type: GrantFiled: December 9, 2008Date of Patent: August 5, 2014Assignee: QUALCOMM IncorporatedInventors: Nikolai Konrad Nepomuceno Leung, Christopher Gerard Lott, Chandrasekhar Therazhandur Sundarraman, Peerapol Tinnakornsrisuphap, Serafin Diaz Spindola
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Patent number: 8774208Abstract: Some implementations of the present invention provide mechanisms for gating the transmission of FIN and other short overhead messages of the like in order to improve spectral efficiency. In some implementations spectral efficiency is improved by reducing the number of air-link connections established to merely transmit FIN and other short overhead messages of the like. In one implementation FIN messages are buffered in a queue and transmitted when an air-link connection is established to transmit higher value messages. In one implementation FIN messages are buffered and transmitted when the contents of the buffer breach a threshold that justifies the establishment of an air-link connection to transmit the contents of the buffer.Type: GrantFiled: September 14, 2011Date of Patent: July 8, 2014Assignee: QUALCOMM IncorporatedInventors: Rashid Ahmed Akbar Attar, Christopher Gerard Lott, Donna Ghosh, Linhai He, George Cherian
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Patent number: 8750114Abstract: A method of wireless communication includes periodically adjusting a target queue length based on an estimated throughput of a network link and based on a measured underflow on the network link. The target queue length represents an amount of data being buffered at a network element. The method also includes controlling a link throughput based on the target queue length.Type: GrantFiled: January 4, 2012Date of Patent: June 10, 2014Assignee: QUALCOMM IncorporatedInventors: Christopher Gerard Lott, Donna Ghosh, Radhika Gowaikar