Patent application number | Description | Published |
20090125280 | Methods for geomechanical fracture modeling - The present invention relates generally to methods for designing and optimizing the number, placement, and size of fractures in a subterranean formation and more particularly to methods that account for stress interference from other fractures when designing and optimizing the number, placement, and size of fractures in the subterranean formation. The present invention optimizes the number, placement and size of fractures in a subterranean formation. The present invention determines one or more geomechanical stresses induced by each fracture based on the dimensions and location of each fracture, including surface deformations caused by each fracture. The present invention determines a maximum number of fractures and a predicted stress field based on the geomechanical stresses induced by each of the fractures. | 05-14-2009 |
20100326659 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 12-30-2010 |
20110017458 | Method for Inducing Fracture Complexity in Hydraulically Fractured Horizontal Well Completions - A method of inducing fracture complexity within a fracturing interval of a subterranean formation comprising characterizing the subterranean formation, defining a stress anisotropy-altering dimension, providing a wellbore servicing apparatus configured to alter the stress anisotropy of the fracturing interval of the subterranean formation, altering the stress anisotropy within the fracturing interval, and introducing a fracture in the fracturing interval in which the stress anisotropy has been altered. A method of servicing a subterranean formation comprising introducing a fracture into a first fracturing interval, and introducing a fracture into a third fracturing interval, wherein the first fracturing interval and the third fracturing interval are substantially adjacent to a second fracturing interval in which the stress anisotropy is to be altered. | 01-27-2011 |
20110042083 | Method of improving waterflood performance using barrier fractures and inflow control devices - The present invention is directed to a method of hydrocarbon production from a hydrocarbon reservoir. The method includes providing a substantially horizontal wellbore having at least one productive interval within a hydrocarbon reservoir and forming at least one non-conductive transverse fracture in the reservoir along the substantially horizontal wellbore. An injection well is also provided. A fluid is injected into the reservoir through the injection well to displace hydrocarbons within the reservoir toward a production portion of the substantially horizontal wellbore. Hydrocarbons are drained from the reservoir into at least one production interval of the substantially horizontal wellbore. Fluid production from the at least one production interval into the substantially horizontal wellbore flows through an inflow control device that can restrict the fluid flow. A non-conductive transverse fracture can form a barrier within the reservoir to divert injected fluids to increase sweep efficiency and reduce the influx of injected fluids into the production interval. | 02-24-2011 |
20110061869 | Formation of Fractures Within Horizontal Well - Producing transverse fractures in a horizontal well may be achieved at a relatively lower fracturing pressure by forming one or more tunnels extending from the horizontal wellbore. One or more tunnels may be formed at each location along the horizontal wellbore where a transverse fracture is desired. The tunnel(s) may be formed mechanically, optically, or hydraulically. Further, fracturing may be formed at a lower pressure than would otherwise be required to form transverse fractures from a horizontal wellbore. According to some implementations, the transverse fractures may be formed without isolating a portion of the horizontal wellbore. | 03-17-2011 |
20110209868 | FRACTURING A STRESS-ALTERED SUBTERRANEAN FORMATION - A well bore in a subterranean formation includes a signaling subsystem communicably coupled to injection tools installed in the well bore. Each injection tool controls a flow of fluid into an interval of the formation based on a state of the injection tool. Stresses in the subterranean formation are altered by creating fractures in the formation. Control signals are sent from the well bore surface through the signaling subsystem to the injection tools to modify the states of one or more of the injection tools. Fluid is injected into the stress-altered subterranean formation through the injection tools to create a fracture network in the subterranean formation. In some implementations, the state of each injection tool can be selectively and repeatedly manipulated based on signals transmitted from the well bore surface. In some implementations, stresses are modified and/or the fracture network is created along a substantial portion and/or the entire length of a horizontal well bore. | 09-01-2011 |
20110220359 | Methods Relating to Modifying Flow Patterns Using In-Situ Barriers - A method comprises providing a fluid source in a subterranean formation; providing a wellbore in the subterranean formation; and providing an in-situ barrier, wherein the in-situ barrier is disposed within the subterranean environment and modifies the flow pattern of at least one fluid within the subterranean formation that is provided by the fluid source and flows towards the wellbore. | 09-15-2011 |
20120160484 | Method of Improving Waterflood Performance using Barrier Fractures and Inflow Control Devices - Methods including providing a substantially horizontal wellbore having at least one productive interval within a hydrocarbon reservoir and forming at least one non-conductive transverse fracture in the reservoir along the substantially horizontal wellbore. An injection well is also provided. A fluid is injected into the reservoir through the injection well to displace hydrocarbons within the reservoir toward a production portion of the substantially horizontal wellbore. Hydrocarbons are drained from the reservoir into at least one production interval of the substantially horizontal wellbore. Fluid production from the at least one production interval into the substantially horizontal wellbore flows through an inflow control device that can restrict the fluid flow. A non-conductive transverse fracture can form a barrier within the reservoir to divert injected fluids to increase sweep efficiency and reduce the influx of injected fluids into the production interval. | 06-28-2012 |
20130000906 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-03-2013 |
20130008653 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-10-2013 |
20130008656 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-10-2013 |
20130008657 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-10-2013 |
20130008658 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-10-2013 |
20130008659 | WELLBORE LASER OPERATIONS - Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. | 01-10-2013 |
20130240211 | Method for Inducing Fracture Complexity in Hydraulically Fratured Horizontal Well Completions - A method of inducing fracture complexity within a fracturing interval of a subterranean formation comprising characterizing the subterranean formation, defining a stress anisotropy-altering dimension, providing a wellbore servicing apparatus configured to alter the stress anisotropy of the fracturing interval of the subterranean formation, altering the stress anisotropy within the fracturing interval, and introducing a fracture in the fracturing interval in which the stress anisotropy has been altered. A method of servicing a subterranean formation comprising introducing a fracture into a first fracturing interval, and introducing a fracture into a third fracturing interval, wherein the first fracturing interval and the third fracturing interval are substantially adjacent to a second fracturing interval in which the stress anisotropy is to be altered. | 09-19-2013 |
Patent application number | Description | Published |
20130114473 | SIGNALING AND TRAFFIC CARRIER SPLITTING FOR WIRELESS COMMUNICATIONS SYSTEMS - Methods, systems, and devices for separating signaling data and traffic data onto separate carriers for wireless communications systems are provided. Some embodiments utilize flexible bandwidth that may utilize portions of spectrum that may not be big enough to fit a normal waveform through utilizing flexible waveforms. Flexible bandwidth systems may lead to reduced data rate on the signaling or other channels. Separating the signaling and the data traffic into different flexible bandwidth carriers so that assigned resources can be customized to different traffic patterns may address this issue. In some embodiments, the signaling data is received and/or transmitted over a first carrier separate from any other traffic data. For example, the signaling data may be received and/or transmitted over the first band carrier without any other traffic data. The traffic data and/or network data associated with the signaling data may be received and/or transmitted over a separate, second carrier. | 05-09-2013 |
20130114566 | ASSISTANCE INFORMATION FOR FLEXIBLE BANDWIDTH CARRIER MOBILITY METHODS, SYSTEMS, AND DEVICES - Methods, systems, and devices for mobility management for wireless communications systems that utilize a flexible bandwidth carrier are provided. Some embodiments include determining and transmitting assistance information to one or more user equipment (UEs) to facilitate mobility management with respect to the flexible bandwidth carrier. Some embodiments include signaling flexible bandwidth carrier information to UEs including, but not limited to: UE-centric approaches, network-centric approaches, network-centric approaches with PLMN, SIB creation approaches, and/or application layer approaches. A flexible bandwidth carrier may involve a wireless communications system that may utilize portions of spectrum that may not fit a normal bandwidth. A flexible bandwidth carrier may be generated with respect to a normal bandwidth carrier through dilating, or scaling down, the time or the chip rate of the flexible bandwidth carrier with respect to the normal bandwidth carrier. Some embodiments may expand a bandwidth for a flexible bandwidth carrier. | 05-09-2013 |
20130115991 | BANDWIDTH INFORMATION DETERMINATION FOR FLEXIBLE BANDWIDTH CARRIERS - Methods, systems, and devices for wireless communication are provided for mobility management for wireless communications systems that utilize a flexible bandwidth carrier. Some embodiments include approaches for determining bandwidth information, such as one or more bandwidth scaling factors N and/or flexible bandwidths, at a user equipment (UE), where the bandwidth information may not be signaled to the UE. Embodiments for determining bandwidth information include: random ordered bandwidth scaling factor approaches, delay ordered bandwidth scaling factor approaches, storing bandwidth scaling factor value in UE Neighbor Record approaches, spectrum measurement approaches, spectrum calculation approaches, and/or a priori approaches. Flexible bandwidth carrier systems may utilize spectrum portions that may not be big enough to fit a normal waveform. Flexible bandwidth carrier systems may be generated through dilating, or scaling down, time, frame lengths, bandwidth, or the chip rate of the flexible bandwidth carrier systems with respect to a normal bandwidth carrier system. | 05-09-2013 |
20130121265 | DYNAMIC BANDWIDTH ADJUSTMENT IN FLEXIBLE BANDWIDTH SYSTEMS - Methods, systems, and devices are provided for dynamically adapting the bandwidth of flexible bandwidth carriers. Adapting the bandwidth of a flexible bandwidth carrier may be achieved through changing the scale factor of the flexible bandwidth signal. Information such as traffic patterns, interference measurements, etc., may be utilized to determine the adapted scaling factors. In macrocellular deployments, for example, dynamically adjusting the bandwidth of a flexible bandwidth system may be utilized in order to increase network capacity, mitigate interference caused to other carriers, avoid adjacent carrier interference, and/or save energy on the network. Traffic pattern and other information may also be utilized to dynamically adjust uplink and downlink bandwidths of a flexible bandwidth carrier, either jointly or independently. | 05-16-2013 |
20130148576 | VOICE SERVICE SOLUTIONS FOR FLEXIBLE BANDWIDTH SYSTEMS - Methods, systems, and devices are disclosed for providing services, such as voice services, within flexible bandwidth systems. In general, the scaling of one or more aspects of a flexible bandwidth system may be compensated for through altering one or more aspects within a code domain. The tools and techniques may include scaling spreading factors (with rate matching tuning in some embodiments), multi-code transmission, code rate increases, AMR codec rate adjustments, and/or higher order modulation. Subframe decoding approaches for the reception scheme may also be utilized. These tools and techniques can be flexibly implemented on the mobile device and/or base station side. Some embodiments may also minimize the latency introduced by the transmission and/or reception process. Flexible bandwidths systems may utilize portions of spectrum that may be too big or too small to fit a normal bandwidth waveform. | 06-13-2013 |
20130148627 | PROVIDING FOR MOBILITY FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS - Methods, systems, and devices for facilitating mobility between flexible bandwidth systems and other bandwidth systems are provided. These tools and techniques that provide mobility between different bandwidth systems may facilitate supporting circuit-switched (CS) services, such as CS voice services. Some embodiments provide for determining flexible bandwidth capable devices, such as user equipment. Some embodiments involve core network redirection where a core network may direct the handling of circuit-switched services when a flexible bandwidth system does not support the CS services. Some examples provide for radio access network determined handling of CS services when a flexible bandwidth system may not support the CS services. Some embodiments provide for transitioning to a flexible bandwidth system. Some embodiments provide for transitioning from flexible bandwidth systems to non-flexible bandwidth systems that have no support for some or all CS services, other flexible bandwidth systems, and/or systems that natively support CS voice services. | 06-13-2013 |
20130148628 | PROVIDING FOR MOBILITY FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS - Methods, systems, and devices for facilitating mobility between flexible bandwidth systems and other bandwidth systems are provided. These tools and techniques that provide mobility between different bandwidth systems may facilitate supporting circuit-switched (CS) services, such as CS voice services. Some embodiments provide for determining flexible bandwidth capable devices, such as user equipment. Some embodiments involve core network redirection where a core network may direct the handling of circuit-switched services when a flexible bandwidth system does not support the CS services. Some examples provide for radio access network determined handling of CS services when a flexible bandwidth system may not support the CS services. Some embodiments provide for transitioning to a flexible bandwidth system. Some embodiments provide for transitioning from flexible bandwidth systems to non-flexible bandwidth systems that have no support for some or all CS services, other flexible bandwidth systems, and/or systems that natively support CS voice services. | 06-13-2013 |
20130150045 | PROVIDING FOR MOBILITY FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS - Methods, systems, and devices for facilitating mobility between flexible bandwidth systems and other bandwidth systems are provided. These tools and techniques that provide mobility between different bandwidth systems may facilitate supporting circuit-switched (CS) services, such as CS voice services. Some embodiments provide for determining flexible bandwidth capable devices, such as user equipment. Some embodiments involve core network redirection where a core network may direct the handling of circuit-switched services when a flexible bandwidth system does not support the CS services. Some examples provide for radio access network determined handling of CS services when a flexible bandwidth system may not support the CS services. Some embodiments provide for transitioning to a flexible bandwidth system. Some embodiments provide for transitioning from flexible bandwidth systems to non-flexible bandwidth systems that have no support for some or all CS services, other flexible bandwidth systems, and/or systems that natively support CS voice services. | 06-13-2013 |
20130182655 | FLEXIBLE BANDWIDTH SMALL CELLS - Methods, systems, and devices for utilizing flexible bandwidth carriers for small cells are provided. Bandwidth scaling factor(s) for a small cell may be determined. A flexible bandwidth carrier may be generated for the small cell utilizing the bandwidth scaling factor. Some embodiments provide assistance with active hand-in due to more available PN offsets in the flexible bandwidth domain. Some embodiments enhance small cell discovery with high bandwidth scaling factor beacon-like small cells with little more power than that corresponding to the same power spectral density for normal bandwidth small cell. Some embodiments reduce the interference caused by small cell to macrocell users using an adaptive bandwidth scaling factor for small cells based on number of users supported and their traffic demand, to control the extent of overlap the macrocell has with small cell and the interference to macrocell mobiles. Some embodiments utilize self-configuration for small cells utilizing flexible bandwidth channels. | 07-18-2013 |
20130188632 | SYNCHRONIZED WIRELESS DISPLAY DEVICES - This disclosure relates to techniques for synchronizing playback of media data between a source device and one or more sink devices in a Wireless Display (WD) system. WD systems enable mobile devices to share a local display of the source device with remote sink devices. The techniques of this disclosure include a management procedure at the source device to select a universal queue size for the source device and the participating sink devices. The source device selects the universal queue size based at least on supported queue sizes of the source device and the sink devices. The media packets are then held in queues having the universal queue size at the source device and the sink devices. The uniform queue size combined with compensation for transmission delay enables each of the devices to begin processing the media packets at the same time. | 07-25-2013 |
20130196680 | Method and System for Femtocell Positioning - Method and system for femtocell positioning are disclosed. An apparatus includes one or more processors, a femtocell positioning module configured to determine position of a femtocell, and a memory configured to store position of the femtocell. The femtocell positioning module, working with the one or more processors, includes logic configured to identify one or more wireless terminals and receive location information from the one or more wireless terminals via a first communication channel and determine position of the femtocell in accordance with the location information from the one or more wireless terminals. The femtocell positioning module further includes logic configured to obtain multiple set of range measurements between the femtocell and the one or more wireless terminals, logic configured to determine position of the femtocell in accordance with the location information and the multiple set of range measurements between the femtocell and the one or more wireless terminals. | 08-01-2013 |
20130235750 | OUT-OF-BAND RADIO FOR SUPPORTING COMPRESSED MODE IN A FEMTO DEPLOYMENT - Systems, methods, devices, and computer program products are described for using communications over an out-of-band (OOB) link to support compressed mode communications by user equipment (UE) in a femto deployment. Typically, UEs must tune away from an active communications channel to make inter-frequency and/or inter-RAT measurements. When making these measurements, data communications may be compressed to allow time to tune away for those measurements. Embodiments integrate an OOB proxy with the femtocell to provide OOB link capability to supplement WWAN link resources. According to various techniques, the OOB link is used to compensate for reductions in data rate and/or quality resulting from compressed mode operation. For example, the OOB link is used to communicate compressed mode signaling data, retransmissions, and/or other compensatory data. | 09-12-2013 |
20130242117 | FRAME BUFFER FORMAT DETECTION - In an example, a method includes generating a test frame of video data having a first format, and rendering the test frame of video data to a frame buffer, wherein the frame buffer is configured to store video data in a second format. The method also includes reading, from the frame buffer, a return frame of video data, wherein the return frame of video data comprises the video data of the test frame formatted in the second format, and determining the second format based on a comparison of the test frame having the first format and the return frame having the second format. | 09-19-2013 |
20130316681 | METHODS AND APPARATUS FOR PROVIDING AN INCENTIVIZED COOPERATIVE SYSTEM FOR ACCESSING RADIO ACCESS NETWORKS - Methods and apparatus are disclosed for providing improved service to wireless devices in a radio access network (RAN). This is accomplished through affording cooperative arrangements wherein a helper mobile device having a good link to the RAN assists another mobile device having a poorer quality link to access the RAN, thereby offering improved service. The arrangement includes an out of band link between the mobile devices that does not use the same radio access technology as the RAN. Additionally, an incentive scheme provides credit to users of the assisting devices that is configured to encourage and sustain future cooperative arrangements. Credit may be transferred from a user of the assisted device to the user of the helper device as compensation. Further, an operator of the RAN may also inject credit to users of helper devices to incentivize and sustain future cooperative arrangements. | 11-28-2013 |
20130344826 | ADJUSTABLE RECEIVE FILTER RESPONSIVE TO FREQUENCY SPECTRUM INFORMATION - An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on frequency spectrum information. The control signal may shift a center of the pass band from a first center frequency to a second center frequency and/or change a pass band bandwidth from a first bandwidth to a second bandwidth. In one example, the frequency spectrum information includes a status of an internal secondary radio. The frequency spectrum information may also indicate a region of operation where the frequency response is selected in accordance with the region. | 12-26-2013 |
20130344829 | ADJUSTABLE RECEIVE FILTER RESPONSIVE TO FREQUENCY SPECTRUM INFORMATION - An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on frequency spectrum information. The control signal may shift a center of the pass band from a first center frequency to a second center frequency and/or change a pass band bandwidth from a first bandwidth to a second bandwidth. In one example, the frequency spectrum information includes a status of an internal secondary radio. The frequency spectrum information may also indicate a region of operation where the frequency response is selected in accordance with the region. | 12-26-2013 |
20130344836 | ADJUSTABLE RECEIVE FILTER RESPONSIVE TO FREQUENCY SPECTRUM INFORMATION - An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on frequency spectrum information. The control signal may shift a center of the pass band from a first center frequency to a second center frequency and/or change a pass band bandwidth from a first bandwidth to a second bandwidth. In one example, the frequency spectrum information includes a status of an internal secondary radio. The frequency spectrum information may also indicate a region of operation where the frequency response is selected in accordance with the region. | 12-26-2013 |
20130344837 | ADJUSTABLE RECEIVE FILTER RESPONSIVE TO FREQUENCY SPECTRUM INFORMATION - An adjustable filter is responsive to a control signal to change a frequency response of the adjustable filter based on frequency spectrum information. The control signal may shift a center of the pass band from a first center frequency to a second center frequency and/or change a pass band bandwidth from a first bandwidth to a second bandwidth. In one example, the frequency spectrum information includes a status of an internal secondary radio. The frequency spectrum information may also indicate a region of operation where the frequency response is selected in accordance with the region. | 12-26-2013 |
20140064134 | ADAPTIVE FAST DORMANCY CONTROLLER - Methods, devices, and instructions stored in non-transitory computer-readable medium are provided for adaptively adjusting when a mobile device requests fast dormancy (FD) by determining when applications executing on the mobile device stop using a connection to a cellular telecommunications network. An adaptive fast dormancy controller function executing on a processor of the mobile device monitors network traffic activity by the applications. The adaptive fast dormancy controller function may determine that an open network connection should be released using a device traffic inactivity timer that times durations of network inactivity by applications. The duration of the device traffic inactivity timer may be adjusted based upon observed application and/or network conditions. Multiple device traffic inactivity timers may be used to enable timing traffic inactivity of each application or groups of applications executing on the mobile device. | 03-06-2014 |
20140074907 | APPARATUS AND METHOD FOR DELIVERY CONTROL OF APPLICATION DATA TO A MOBILE DEVICE IN A COMMUNICATION NETWORK - Apparatus and methods are provided for buffering application data from one or more application servers to be transmitted to a mobile device at a suitable opportunity. The application data may be buffered at the application servers, or at a delivery control server. An opportunity to transmit the application data may arise in accordance with detected user activity at the mobile device, or predicted imminent user activity at the mobile device, indicating that the user may wish to receive the application data. | 03-13-2014 |
20140105083 | COOPERATIVE DATA MULES - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus provides or enables dynamic cooperative wireless data delivery service based on dynamic proximate locations of mobile nodes in wireless networks. A source wireless terminal may offload data for delayed transmission by a neighboring wireless terminal. The source may attempt delayed data transmission via any cooperating neighboring node (mule), whether mobile or stationary. A utility function may be used to compare costs of communicating via direct links or through opportunistically available links provided by mules. The mule may advertise availability of indirect data delivery service including probable latency time associated with the indirect delivery service. | 04-17-2014 |
20140128079 | PSC TRANSMISSION WITH TIME OFFSET FOR UNIQUE SMALL CELL IDENTIFICATION - A method, an apparatus, and a computer program product for wireless communication are provided. The method and apparatus resolve issues related to voice and data handovers between micro cells, femto cells and other small cells, and to handovers from macro cells to small cells are becoming increasingly significant as small cells are more widely deployed. In order to handoff a call associated with a user equipment, a base station attempts to identify neighboring cells that are within communication range of the user equipment based on a primary scrambling code and delays between multiple transmissions of the PSC detected by the user equipment and reported to the base station by the user equipment. | 05-08-2014 |
20140146691 | COOPERATIVE MEASURMENTS IN WIRELESS NETWORKS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus communicates using a first radio based on a first radio technology and configures a second radio based on a second radio technology different from the first radio technology to receive signals transmitted based on a radio technology different from the second radio technology. The apparatus also measures a quality indicator of a signal received at the second radio. The signal is transmitted based on the radio technology different from the second radio technology. | 05-29-2014 |
20140146732 | METHODS AND APPARATUS FOR COOPERATING BETWEEN WIRELESS WIDE AREA NETWORK RADIOS AND WIRELESS LOCAL AREA NETWORK RADIOS - A method of wireless communication includes communicating using a first radio based on a first radio technology; configuring a second radio based on a second radio technology different from the first radio technology to assist the first radio with a first-radio operation; and performing at least a portion of the first-radio operation at the second radio. The first-radio operation includes at least one of multiple subscriber identity module (SIM) page monitoring and page/data processing, higher order diversity data acquisition and processing, interference measurement and management, E-UTRAN cell global identifier (ECGI) determination and reporting, a reference signal time difference (RSTD) measurement, beacon detection for small cell identification, a minimization of drive test (MDT) measurement, and a speed estimation measurement. The first radio technology is a wireless wide area network (WWAN) technology and the second radio technology is a wireless local area network (WLAN) technology. | 05-29-2014 |
20140148179 | SYSTEMS AND METHODS FOR SMALL CELL UPLINK INTERFERENCE CANCELLATION USING COOPERATION BETWEEN SMALL CELLS - A method of managing uplink interference at a base station includes: detecting uplink interference caused by one or more inter-cell user equipments to an uplink channel of a base station, the one or more inter-cell user equipments associated with a neighboring base station; receiving, at the base station, assistance information from the neighboring base station, the assistance information comprising a parameter list of ongoing transmissions by the one or more user equipments associated with the neighboring base station; and performing uplink interference cancellation, at the base station, on at least a portion of a received signal based on the assistance information to generate a resulting signal. | 05-29-2014 |
20140170991 | AGILE ACTIVE INTERFERENCE CANCELLATION (AAIC) FOR MULTI-RADIO MOBILE DEVICES - A method of performing interference cancellation in a communication device having a plurality of transceivers includes: detecting a co-existence issue between a first transceiver and a second transceiver of the plurality of transceivers; determining parameters of the co-existence issue; selecting the first transceiver for providing an input signal to an interference cancellation (IC) circuit; selecting the second transceiver for receiving an output signal from the IC circuit; configuring the IC circuit based on the parameters of the co-existence issue; and generating the output signal based on the input signal and the parameters to reduce interference caused by the first transceiver on the second transceiver. | 06-19-2014 |
20140256265 | METHOD FOR AUTONOMOUS RADIO NETWORK OPTIMIZATION USING STOCHASTIC APPROXIMATION - A method of determining, within a radio network, an optimal value of at least one network parameter having an associated performance metric, the network having at least a base station and a user equipment (UE), the method including: providing a mathematical representation function (MRF) for the performance metric such that an optimal value for each of the at least one network parameter provides a result of zero in the MRF; making at least one noisy observation of the MRF from the network; and recursively updating the at least one network parameter based on the at least one noisy observation to obtain the optimal value for each of the at least one network parameter that provides the result of zero in the MRF. | 09-11-2014 |
20140273868 | DRIVER DISTRACTION DETECTION AND REPORTING - A system including a communication detection and classification apparatus configured to detect and classify radio signals is disclosed. The system may include a communication service detection unit configured to detect available radio communication services and to store system parameters relating to the available radio communication services in a memory, an access probe and energy detection unit configured to detect a radio signal within a proximity to the communication detection and classification apparatus and to store the detected radio signal, wherein the radio signal is communicated over one of the detected available radio communication services, an analysis unit configured to analyze the detected radio signal, and a classification unit configured to classify a type of activity of the detected radio signal based on an output of the analysis unit. | 09-18-2014 |
20140274091 | PAGING FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS - Methods, systems, and devices are provided that may support paging over a flexible bandwidth carrier. For example, a reduced paging capacity with respect to a target paging capacity for the flexible bandwidth carrier may be identified. The reduced paging capacity for the flexible bandwidth carrier may be mitigated by various techniques. One technique may include increasing a number of paging indicators sent per frame over the flexible bandwidth carrier. Other techniques may include reducing a Spreading Factor (SF) for a physical channel or a Secondary Common Control Physical Channel (SCCPCH) carrying the paging indicators over the flexible bandwidth carrier. Further techniques may include utilizing a plurality of paging channels, which may include utilizing a plurality of Paging Indicator Channels (PICHs) or a plurality of SCCPCHs. Other techniques may include reducing a paging area for at least the flexible bandwidth carrier and a normal bandwidth carrier. | 09-18-2014 |
20140362849 | SYNCHRONIZED WIRELESS DISPLAY DEVICES - This disclosure relates to techniques for synchronizing playback of media data between a source device and one or more sink devices in a Wireless Display (WD) system. WD systems enable mobile devices to share a local display of the source device with remote sink devices. The techniques of this disclosure include a management procedure at the source device to select a universal queue size for the source device and the participating sink devices. The source device selects the universal queue size based at least on supported queue sizes of the source device and the sink devices. The media packets are then held in queues having the universal queue size at the source device and the sink devices. The uniform queue size combined with compensation for transmission delay enables each of the devices to begin processing the media packets at the same time. | 12-11-2014 |
20140369329 | LTE AND EXTERNAL WIFI BANDWIDTH AGGREGATION - Techniques for aggregating wireless communications are provided. These techniques include a method for aggregating wireless communications traffic in a femtocell. The method includes receiving at a femtocell a stream of data packets for a mobile device from a wireless router, selecting a transmission mode for sending data packets of the stream of data packets from the femtocell to the mobile device. The first transmission mode includes transmitting the data packets from the stream via a Long Term Evolution (LTE) interface of the femtocell. The second transmission mode includes transmitting the data packets from the stream via a WiFi interface of the wireless router. The third transmission mode includes transmitting a first portion of the data packets to the mobile device via the LTE interface and routing a second portion of the data packets to the wireless router for transmission to the mobile device via the WiFi interface. | 12-18-2014 |
20150023648 | METHOD AND APPARATUS FOR RESOURCE UTILIZATION IN A SOURCE DEVICE FOR WIRELESS DISPLAY - This disclosure relates to techniques for resource utilization in a source device when transmitting video data in a Wireless Display (WD) system. A method for wireless display of compressed content may comprise determining, by a source device, a decoding capability of a sink device, receiving, by the source device, a request to display compressed content at the sink device in a wireless display session, and in the case that the decoding capability of the sink device allows for decoding of the compressed content, transmitting the compressed content from the source device to the sink device, whereby transcoding the compressed content is avoided in the source device. | 01-22-2015 |
20150065064 | ACTIVE INTERFERENCE CANCELLATION IN ANALOG DOMAIN - A method of performing interference cancellation (IC) in a communication device having a plurality of transmitters and a plurality of receivers includes detecting a co-existence issue between a first transmitter and a first receiver; selecting the first transmitter for providing an input signal to IC circuit; selecting the first receiver, wherein each of the receivers has a corresponding filter, the first receiver having a filter for filtering a signal received by the first receiver to provide a first filtered signal; configuring the IC circuit based on parameters of the co-existence issue; generating an output signal based on the input signal and the parameters; selecting a filter, based on the filter of the first receiver, the selected filter configured to filter the output signal to provide a second filtered signal; and generating a cancellation signal based on the first and second filtered signals. | 03-05-2015 |
20150092672 | SYSTEM INFORMATION FOR WIRELESS COMMUNICATIONS SYSTEMS WITH FLEXIBLE BANDWIDTH CARRIER - Methods, systems, and devices are provided for system information management in a wireless communications. A user equipment (UE) may identify a first value of a value tag in a first carrier, read a system information block (SIB) on the first carrier associated with the value tag, and identify a second value of the value tag in a second carrier. The UE may compare the first value with the second value and determine whether the read SIB on the first carrier may be utilized on the second carrier. Other techniques may include identifying a first value of a value tag for a first carrier linked with a SIB transmitted over the first carrier. The techniques may include determining a second value of the value tag for a second carrier indicating whether the SIB transmitted over the first carrier may be utilized on the second carrier. | 04-02-2015 |
20150092674 | SYSTEM INFORMATION FOR WIRELESS COMMUNICATIONS SYSTEMS WITH FLEXIBLE BANDWIDTH CARRIER - Methods, systems, and devices are provided for system information management in a wireless communications. A user equipment (UE) may identify a first value of a value tag in a first carrier, read a system information block (SIB) on the first carrier associated with the value tag, and identify a second value of the value tag in a second carrier. The UE may compare the first value with the second value and determine whether the read SIB on the first carrier may be utilized on the second carrier. Other techniques may include identifying a first value of a value tag for a first carrier linked with a SIB transmitted over the first carrier. The techniques may include determining a second value of the value tag for a second carrier indicating whether the SIB transmitted over the first carrier may be utilized on the second carrier. | 04-02-2015 |
20150155891 | DUAL MODE WWAN AND WLAN TRANSCEIVER SYSTEMS AND METHODS - A method of wireless communication includes communicating by receiving by a first transceiver a first type of signal, receiving by a second transceiver a first type of signal, carrier aggregating the signals received by the first transceiver and the signal the second transceiver. The method includes detecting a second type of signal and switching the first transceiver to receive the second signal type while the second transceiver continues to receive the first type of signal. | 06-04-2015 |
20150200721 | OPPORTUNISTIC ACTIVE INTERFERENCE CANCELLATION USING RX DIVERSITY ANTENNA - A method of performing interference cancellation (IC) in a wireless communication device having a receiver comprising at least a primary receiver chain and a diversity receiver chain includes determining an interference level of a transmitted signal on the receiver; determining whether the interference level is within a predetermined range; selecting a first mode of operation if the interference level is within a predetermined range; and selecting a second mode of operation if the interference level is not within the predetermined range. The first mode includes receiving, at the primary receiver chain, a first signal corresponding to the transmitted signal; receiving, at the diversity receiver chain, a second signal corresponding to the transmitted signal for providing to an IC circuit; generating, at the IC circuit, an output signal based on the second signal; and generating a cancellation signal based on the output signal and the first signal. | 07-16-2015 |
20150257016 | CALIBRATION AND TRACKING TO ASSIST INTER-FREQUENCY MEASUREMENTS OF LTE CELL BY WLAN RADIO - An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements. | 09-10-2015 |
20150257020 | CALIBRATION AND TRACKING TO ASSIST INTER-FREQUENCY MEASUREMENTS OF LTE CELL BY WLAN RADIO - An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements. | 09-10-2015 |
20150264497 | AUDIO SIGNAL ADJUSTMENT FOR MOBILE PHONE BASED PUBLIC ADDRESSING SYSTEM - Systems are described for managing audio in a public addressing (PA) system, the system comprising a host configured to generate an adjustment request; and a client configured to establish a session with a personal communication device (PCD); receive a first audio sample from the PCD; transmit the first audio sample to the PA system; receive the adjustment request from the host; receive a second audio sample from the PCD; and adjust the second audio sample in response to the adjustment request. | 09-17-2015 |
20160050031 | AUTOMATED BLIND COEFFICIENT CONTROL IN ANALOG ACTIVE INTERFERENCE CANCELLATION - Aspects of the disclosure are directed to interference cancellation and wireless communication. An analog active interference cancellation circuit may be configured to cancel in-device interference corresponding to transmissions from a transmitter at a wireless communication device, which affects the performance of a receiver at the wireless communication device. The interference cancellation circuit may be configured according to one or more digital coefficients calculated based on a baseband downconverted from the RF output of the receiver. That is, the digital coefficient may be converted to an analog coefficient and applied to the interference cancellation circuit. | 02-18-2016 |
Patent application number | Description | Published |
20120082064 | CONFIGURATION CONTROL OF INTER-CELL SIGNALING BASED ON POWER STATE - An access point may control reporting configurations based on current power state of a cell in wireless communications network. The first cell may provide reporting configuration instructions to a second cell, instructing selection between at least two defined configurations for reporting system information or load information from the second cell, based on whether the first cell is in a powered up state or a powered down state. The first cell may transmit notifications to the second cell indicating when the first cell is transitioning to a current power state, which may be one of the powered up state or the powered down state. The first cell may select one of the at least two configurations for interpreting reporting data received from the second cell, based its current power state, to obtain the system information or the load information from the second cell. | 04-05-2012 |
20120142328 | SYSTEM AND METHOD FOR ASSISTING IN POWERING ON SLEEPING NETWORK ENTITIES - Techniques are provided to facilitate offloading of mobile entities from a serving network entity. For example, there is provided a location-based method that involves, in response to a load of the requesting entity exceeding a load threshold, identifying candidate network entities to which to offload a user equipment (UE), each of the candidate network entities being in sleep mode. The method may involve determining coverage and location information for the candidate network entities, and determining location information for the UE. The method may involve selecting a given network entity to turn ON based at least in part on the coverage information and the location information. The method may involve sending an ON-request message to the at least one selected network entity, the ON-request message including a timer that can be used to deactivate the selected network entity in case it is not useful in offloading the serving network entity. | 06-07-2012 |
20130017779 | SHORT PACKET DATA SERVICE - A novel message exchange protocol is disclosed. In one example, a method of transmitting data includes generating, with a wireless device, an application data message for an application; evaluating one or more criteria for determining whether to send the application data message via a data radio bearer (DRB) channel or via a signaling radio bearer (SRB) channel that communicatively couples the wireless device to a network resource; and based on determining to send the application data message via the SRB channel, sending the application data message to the network resource via the SRB channel. | 01-17-2013 |
20130114415 | PARAMETER SCALING FOR FRACTIONAL BANDWIDTH SYSTEMS - Methods, systems, and devices are described for making scaling adjustments with respect to a fractional subsystem in a wireless communications system. To handle the effects of scaling associated with fractional bandwidth systems, different adjustments may be made to maintain certain quality of service (QoS) requirements, for example. Scaling adjustments may include identifying a scaling factor for the fractional subsystem and a parameter and/or a timer associated with the fractional subsystem. An adjustment associated with the parameter and/or timer may be determined based on the scaling factor. The adjustment may be applied with respect to the parameter and/or timer for at least a portion of the fractional subsystem or another portion of the wireless communications system. | 05-09-2013 |
20130114433 | SCALING FOR FRACTIONAL SYSTEMS IN WIRELESS COMMUNICATION - Methods, systems, and devices are described for utilizing scaling factors and/or fractional bandwidth and waveforms for wireless communication. Scaling factors may be utilized to relate aspects of one subsystem with aspects of another subsystem. Embodiments may utilize portions of spectrum that may not be big enough to fit a standard waveform. Scaling factors may be utilized to generate fractional waveforms to fit these portions of spectrum. A fractional subsystem may be generated with respect to a normal subsystem or other fractional subsystem through dilating, or scaling, time, frequency, state, or other aspects of the fractional subsystem with respect to time, frequency, state, or other aspects of the normal subsystem or the other fractional subsystem. The fractional subsystem may be aligned with a normal system at different times and/or different frequencies. Scaling information may be utilized to perform measurements on another subsystem, perform handoffs to another subsystem, perform reselection, align, etc. | 05-09-2013 |
20130115967 | ADAPTIVE FLEXIBLE BANDWIDTH WIRELESS SYSTEMS - Methods, systems, and devices are described for providing flexible bandwidth waveforms and channels for wireless communication. Embodiments may utilize portions of spectrum that may not be large enough to fit a standard or normal waveform. Chip rates may be adapted dynamically to generate and/or to receive flexible bandwidth waveforms to fit these portions of spectrum. Scaling factors and/or center frequencies may also be utilized to generate flexible waveforms. A mobile device may receive adjustment information from a base station so that the mobile device may dynamically adjust its chip rate to utilize a flexible bandwidth channel. A base station may simultaneously transmit on a normal bandwidth channel and a flexible bandwidth channel in some cases. Some flexible bandwidth waveforms may be utilized that are larger, or take more bandwidth, than a normal waveform. Flexible bandwidth may also be utilized to split and/or combine frequency channels. | 05-09-2013 |
20130148520 | SUPPORTING VOICE FOR FLEXIBLE BANDWIDTH SYSTEMS - Methods, systems, and devices for supporting voice communications in a wireless communications system are provided. Some embodiments utilize multiple code channels to transmit the voice frames. These embodiments include parallel multi-code embodiments, offset multi-code embodiments, and multi-user multi-code embodiments. Some embodiments utilize flexible carrier bandwidths systems that may utilize portions of spectrum that may not be big enough to fit a normal bandwidth waveform. Some embodiments transmit and receive a subset of subframes of voice frames received over flexible bandwidth code channels. In some embodiments, a subset of subframes based on a flexible bandwidth scaling factor of one or more flexible bandwidth code channels is transmitted. The receiver may decode the voice frame based on the received subset of subframes. An outer loop power control set-point may be adjusted to provide a predetermined frame error rate based on the number of transmitted subframes. | 06-13-2013 |
20130148527 | COMPRESSED MODE MEASUREMENTS FOR FLEXIBLE BANDWIDTH CARRIER SYSTEMS, DEVICES, AND METHODS - Methods, systems, and devices are provided that may address problems to enabling a user equipment (UE) in connected mode on a normal bandwidth cell to make inter-frequency measurements on another normal bandwidth cell and a flexible bandwidth cell. Some embodiment utilize a set of compressed mode gap configurations for measuring both normal bandwidth and flexible bandwidth inter-frequency cells with the following modification for flexible bandwidth cells: reducing the coherent length used by the UE; using the same cell search parameters at the UE but modifying the compressed mode gap parameters to accommodate both normal bandwidth and flexible bandwidth cell search; and/or maintaining the compressed mode gap parameters but reducing the search window size during cell search coherent accumulation. Some embodiments may configure separate compressed mode measurements configuration for normal bandwidth and flexible bandwidth measurements. | 06-13-2013 |
20130201924 | DATA RADIO BEARER (DRB) ENHANCEMENTS FOR SMALL DATA TRANSMISSIONS APPARATUS, SYSTEMS, AND METHODS - A method of transmitting data packets with a wireless communication device includes requesting a preconfigured data radio bearer (DRB) from a base station during a connection request; receiving the preconfigured DRB from the base station in response to the request; and providing security configuration information to a network control entity that provides the security configuration information to the base station. | 08-08-2013 |
20130203452 | MOBILE ASSISTED DISPARATE RADIO ACCESS TECHNOLOGY INTERFACING - A method of providing signaling information for a wireless communication node includes: obtaining, at first user equipment (UE), first information associated with a first node of a first radio access technology (RAT) network that uses a first RAT, the first UE being configured for wireless telecommunication; and sending, in response to obtaining the first information, second information from the first UE to a second node of a second RAT network that uses a second RAT that is different from the first RAT. | 08-08-2013 |
20130217385 | PROXIMITY INDICATION USING OUT-OF-BAND LINKS - Management of user equipment (UE) proximity indications to femto access points is provided using out-of-band (OOB) signals. To obtain OOB identification information on the femto access point, the UE determines the OOB identification information when in proximity to cells neighboring the femto access point. This OOB information is stored in a search information database (SID) of the UE and related to in-band information on the femto access point. To later determine proximity to the femto access point, in response to detecting its presence within a fingerprint area around the femto access point, a search for the femto access point is triggered using the OOB radio resources and OOB identification information associated with the femto access point in the SID. When the UE detects the femto access point using the OOB radio resources, the UE transmits a proximity indication to its serving base station over the in-band radio link. | 08-22-2013 |
20130225165 | OUT-OF-BAND SCANNING FOR FEMTO ACCESS POINT DETECTION - Scanning for femto access points includes scanning out-of-band (OOB) channels to discover OOB signals associated with the femto access point. When a femto access point is first discovered, a first type of scan is performed of each of the OOB channels. The user equipment (UE) determines whether any received responses originate from femto OOB access points and, if so, updates a search database of the UE. During subsequent visits to the area of the femto OOB access points, when the UE detects entry to a fingerprint area of the femto OOB access point, a second type of scan is performed, in which each of the OOB channels with femto OOB access points identified in the search database are scanned. If responses are detected to this second type of scan, a proximity indication is transmitted using in-band signals to a serving macro access point. | 08-29-2013 |
20130244653 | ACCESS POINT SYNCHRONIZATION WITH COOPERATIVE MOBILE DEVICES - A mobile device provides first information to an access point over an out-of-band wireless link. The access point uses the first information to coarsely synchronize with a macrocell base station. The access point transmits a low power pilot signal that is formed using a pseudo-random noise (PN) sequence. The mobile device uses the out-of-band wireless link to provide second information to the access point that indicates a PN phase of the pilot signal with respect to a reference time point. The access point uses the second information to finely synchronize with the macrocell base station. The mobile device communicates with a mobile operator core network through the access point using an in-band wireless link to the access point. The mobile device compensates for propagation delay when obtaining time information. The mobile device provides additional information to the access point, which the access point uses to adjust for continued clock drift. | 09-19-2013 |
20130294425 | FEMTOCELL SYNCHRONIZATION ENHANCEMENTS USING ACCESS PROBES FROM COOPERATING MOBILES - Femtocell synchronization is disclosed, in which a femtocell transmits a request over an out-of-band (OOB) link to a proximate mobile device for synchronization assistance. In response to the request, the mobile device transmits an access probe to a serving macro base station. The femtocell detects the access probe and uses aiding information to decode the access probe to determine the timing and/or frequency information. The femtocell uses this timing and/or frequency information for its synchronization. | 11-07-2013 |
20140134997 | NETWORK LISTEN WITH SELF INTERFERENCE CANCELLATION - A method for wireless communications includes reducing transmission power, by a femto base station, at its radio frequency (RF) transmitter, and cancelling a transmitted data signal of the RF transmitter at its network listen (NL) receiver. The reduction occurs in response to: occurrence of a network listen process; and/or a signal quality of the local macro coverage area exceeding a threshold quality. Additionally or alternatively, the femto base station may detect quality of its macro coverage area, and respond to the signal quality being below the threshold quality by: suspending reduction of transmission power and cancellation of the transmitted data signal; suspending the RF transmitter during transmission gaps assigned to user equipments (UEs); and triggering an NL operation in response to suspension of the RF transmitter, wherein the NL operation occurs within the duration of each of the transmission gaps. | 05-15-2014 |
20150103717 | SYSTEM AND METHOD FOR ASSISTING IN POWERING ON SLEEPING NETWORK ENTITIES - Techniques are provided to facilitate offloading of mobile entities from a serving network entity. For example, there is provided a location-based method that involves, in response to a load of the requesting entity exceeding a load threshold, identifying candidate network entities to which to offload a user equipment (UE), each of the candidate network entities being in sleep mode. The method may involve determining coverage and location information for the candidate network entities, and determining location information for the UE. The method may involve selecting a given network entity to turn ON based at least in part on the coverage information and the location information. The method may involve sending an ON-request message to the at least one selected network entity, the ON-request message including a timer that can be used to deactivate the selected network entity in case it is not useful in offloading the serving network entity. | 04-16-2015 |