Patent application number | Description | Published |
20090032075 | METHODS AND APPARATUS FOR LIQUID CHEMICAL DELIVERY - In a first aspect, an apparatus for chemical delivery to a scrubber is provided. The apparatus comprises: a liquid delivery module comprising: a first input adapted to receive a first input flow of a dilutant; a second input adapted to receive a second input flow of a chemistry; one or more flow couplers coupled to the first input and the second input, and adapted to combine the first input flow and the second input flow into a combined flow; a mixing element coupled to the one or more flow couplers, and adapted to mix the combined flow such that a homogeneity of the combined flow is increased; a flow splitter coupled to the mixing element and adapted to generate at least a first output flow and a second output flow from the combined flow; a first output coupled to the flow splitter and adapted to direct the first output flow toward a first scrubber dispensing element; and a second output coupled to the flow splitter and adapted to direct the second output flow toward a second scrubber dispensing element. Numerous other aspects are provided. | 02-05-2009 |
20110045170 | IN-SITU DEPOSITION OF BATTERY ACTIVE LITHIUM MATERIALS BY THERMAL SPRAYING - A method and apparatus for forming an electrochemical layer of a thin film battery is provided. A precursor mixture comprising electrochemically active precursor particles dispersed in a carrying medium is provided to a processing chamber and thermally treated using a combustible gas mixture also provided to the chamber. The precursor is converted to nanocrystals by the thermal energy, and the nanocrystals are deposited on a substrate. A second precursor may be blended with the nanocrystals as they deposit on the surface to enhance adhesion and conductivity. | 02-24-2011 |
20110045206 | IN-SITU DEPOSITION OF BATTERY ACTIVE LITHIUM MATERIALS BY PLASMA SPRAYING - A method and apparatus for forming an electrochemical layer of a thin film battery is provided. A precursor mixture comprising precursor particles dispersed in a carrying medium is activated in an activation chamber by application of an electric field to ionize at least a portion of the precursor mixture. The activated precursor mixture is then mixed with a combustible gas mixture to add thermal energy to the precursor particles, converting them to nanocrystals, which deposit on a substrate. A second precursor may be blended with the nanocrystals as they deposit on the surface to enhance adhesion and conductivity. | 02-24-2011 |
20110274850 | HYDROTHERMAL SYNTHESIS OF ACTIVE MATERIALS AND IN SITU SPRAYING DEPOSITION FOR LITHIUM ION BATTERY - A method and apparatus for forming an electrochemical layer of a lithium ion battery is provided. A precursor mixture in a carrying medium is activated in a reactor chamber by application of energy to synthesize active materials. The activated precursor mixture is then spray deposited on a substrate. A binder and conductive materials may be blended, or sprayed separately, with the nano- or micro-crystals as they deposit on the surface to enhance adhesion and conductivity. | 11-10-2011 |
20120064225 | SPRAY DEPOSITION MODULE FOR AN IN-LINE PROCESSING SYSTEM - In one embodiment, an apparatus for simultaneously depositing an anodically or cathodically active material on opposing sides of a flexible conductive substrate is provided. The apparatus comprises a chamber body defining one or more processing regions in which a flexible conductive substrate is exposed to a dual sided spray deposition process, wherein each of the one or more processing regions are further divided into a first spray deposition region and a second spray deposition region for simultaneously spraying an anodically active or cathodically active material onto opposing sides of a portion of the flexible conductive substrate, wherein each of the first and second spray deposition regions comprise a spray dispenser cartridge for delivering the activated material toward the flexible conductive substrate and a movable collection shutter. | 03-15-2012 |
20120082884 | ELECTROSPINNING FOR INTEGRATED SEPARATOR FOR LITHIUM-ION BATTERIES - Embodiments of the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure. | 04-05-2012 |
20120219841 | LITHIUM ION CELL DESIGN APPARATUS AND METHOD - A spray module for depositing an electro-active material over a flexible conductive substrate is provided. The spray module comprises a first heated roller for heating and transferring the flexible conductive substrate, a second heated roller for heating and transferring the flexible conductive substrate, a first spray dispenser positioned adjacent to the first heated roller for depositing electro-active material onto the flexible conductive substrate as the flexible conductive substrate is heated by the first heated roller, and a second spray dispenser positioned adjacent to the second heated roller for depositing electro-active material over the flexible conductive substrate as the flexible conductive substrate is heated by the second heated roller. | 08-30-2012 |
20130017340 | METHODS TO FABRICATE VARIATIONS IN POROSITY OF LITHIUM ION BATTERY ELECTRODE FILMS - A method and apparatus for forming lithium-ion batteries and battery cell components, and more specifically, to a system and method for fabricating such batteries and battery cell components using deposition processes that form three-dimensional porous structures are provided. One method comprises texturing a conductive substrate by calendering the conductive substrate between opposing wire mesh structures, forming a first layer of cathodically active material having a first porosity on the surface of the textured conductive substrate, and forming a second layer of cathodically active material having a second porosity on the first layer, wherein the second porosity is greater than the first porosity. | 01-17-2013 |
20130214200 | PARTICLE SYNTHESIS APPARATUS AND METHODS - Apparatus and methods of forming a battery-active material are described. An apparatus includes a first processing section that raises the temperature of a precursor material to a reaction threshold temperature, a second processing section that converts the precursor material to a battery-active material, and a third processing section that cools the resulting battery-active material. Each of the processing sections may be a continuous flow tubular component. The first and third processing sections may be metal, and the second processing section may be a refractory material for high temperature service. The battery-active material is collected using a solids collector. | 08-22-2013 |
20150372271 | ELECTROSPINNING FOR INTEGRATED SEPARATOR FOR LITHIUM-ION BATTERIES - Embodiments of the present invention relate generally to lithium-ion batteries, and more specifically, to batteries having integrated separators and methods of fabricating such batteries. In one embodiment, a lithium-ion battery having an electrode structure is provided. The lithium-ion battery comprises an anode stack, a cathode stack, and a porous electrospun polymer separator comprising a nano-fiber backbone structure. The anode stack comprises an anodic current collector and an anode structure formed over a first surface of the anodic current collector. The cathode stack comprises a cathodic current collector and a cathode structure formed over a first surface of the cathodic current collector. The porous electrospun polymer separator is positioned between the anode structure and the cathode structure. | 12-24-2015 |
20150372286 | APPARATUS FOR MATERIAL SPRAY DEPOSITION OF HIGH SOLID PERCENTAGE SLURRIES FOR BATTERY ACTIVE MATERIAL MANUFACTURE APPLICATIONS - A method and apparatus for forming battery active material on a substrate are disclosed. In one embodiment, an apparatus for depositing a battery active material on a surface of a substrate includes a substrate conveyor system, the material electrospray dispenser assembly disposed above the substrate conveyor system, and a first heating element disposed adjacent to the material spray assembly above the substrate conveyor system. | 12-24-2015 |
20160006018 | ELECTRODE SURFACE ROUGHNESS CONTROL FOR SPRAY COATING PROCESS FOR LITHIUM ION BATTERY - A method and apparatus for fabricating energy storage devices and device components is provided. It has been found that spraying of slurries comprising electro-active materials onto a flexible substrate and subsequently exposing the substrate to an increasing temperature gradient leads to the deposition of a dry or mostly dry film having reduced surface roughness. The increasing temperature gradient may result from a plurality of heated rollers over which the substrate traverses wherein each heated roller is heated to a temperature greater than the previous heated roller leading to the deposition of a dry or mostly dry film having a relatively smooth surface with low porosity. Deposition of a dry or mostly dry film eliminates the need for large and costly drying mechanism thus reducing both the cost and footprint of the apparatus. | 01-07-2016 |
Patent application number | Description | Published |
20110141276 | Proactive Security for Mobile Devices - Methods, program products, and systems for proactively securing mobile devices are described. A mobile device can proactively determine whether the mobile device is associated with a security risk and the level of the security risk. Upon determining a security risk, the mobile device can transmit coordinates of its current geographic location to a server. To protect privacy of authorized users, the transmission can be disabled by entering a password. If multiple failed password attempts are detected, the mobile device can proactively increase a security level of the device, and selectively protect files or other content stored on the mobile device. In some implementations, the mobile device can be transitioned into a surveillance mode where the mobile device records or captures information associated with one or more of user actions, ambient sound, images, a trajectory of the device, and transmits the recorded or captured information to the network resource. | 06-16-2011 |
20120008526 | Ad Hoc Formation and Tracking of Location-Sharing Groups - Methods, systems, and computer-readable media for forming and tracking a location-sharing group are disclosed. The location-sharing group can be performed ad hoc without the assistance of a central server. A geofence can be defined that encloses the current locations of the participating devices in the location-sharing group. The geographic location of the location-sharing group as a whole can be tracked and provided to the participating devices in the location-sharing group. Group-level location-sharing can be enabled. Departure of a participating device from the location-sharing group can be detected based on the current location and the coverage radius of each device in the location-sharing group. Entry of points of interest into the geofence of the location-sharing group can be detected and notified to the participating devices in the location-sharing group. | 01-12-2012 |
20130005362 | Ad Hoc Formation and Tracking of Location-Sharing Groups - Methods, systems, and computer-readable media for forming and tracking a location-sharing group are disclosed. The location-sharing group can be performed ad hoc without the assistance of a central server. A geofence can be defined that encloses the current locations of the participating devices in the location-sharing group. The geographic location of the location-sharing group as a whole can be tracked and provided to the participating devices in the location-sharing group. Group-level location-sharing can be enabled. Departure of a participating device from the location-sharing group can be detected based on the current location and the coverage radius of each device in the location-sharing group. Entry of points of interest into the geofence of the location-sharing group can be detected and notified to the participating devices in the location-sharing group. | 01-03-2013 |
Patent application number | Description | Published |
20090003620 | DYNAMIC ROUTING OF AUDIO AMONG MULTIPLE AUDIO DEVICES - A routing screen is presented on an electronic device by a user interface application in response to receiving a notification that an external audio device is connected to the electronic device. The routing screen displays representations of an internal audio device and the external audio device. In one aspect, the representations are buttons. In another aspect, the representations are entries in a list. If a user selects one of representations, the user interface application causes the audio signals to be routed to the audio device represented by the selection. An application control screen having a set of objects that represent functions for an audio application may also be displayed. One of the objects on the application control screen is modified in response status changes in the external audio device. A user may select this object to access the routing screen when the external audio device is connected. | 01-01-2009 |
20150112467 | DYNAMIC ROUTING OF AUDIO AMONG MULTIPLE AUDIO DEVICES - A routing screen is presented on an electronic device by a user interface application in response to receiving a notification that an external audio device is connected to the electronic device. The routing screen displays representations of an internal audio device and the external audio device. In one aspect, the representations are buttons. In another aspect, the representations are entries in a list. If a user selects one of representations, the user interface application causes the audio signals to be routed to the audio device represented by the selection. An application control screen having a set of objects that represent functions for an audio application may also be displayed. One of the objects on the application control screen is modified in response status changes in the external audio device. A user may select this object to access the routing screen when the external audio device is connected. | 04-23-2015 |
20150331699 | DYNAMIC ROUTING OF AUDIO AMONG MULTIPLE AUDIO DEVICES - A routing screen is presented on an electronic device by a user interface application in response to receiving a notification that an external audio device is connected to the electronic device. The routing screen displays representations of an internal audio device and the external audio device. In one aspect, the representations are buttons. In another aspect, the representations are entries in a list. If a user selects one of representations, the user interface application causes the audio signals to be routed to the audio device represented by the selection. An application control screen having a set of objects that represent functions for an audio application may also be displayed. One of the objects on the application control screen is modified in response status changes in the external audio device. A user may select this object to access the routing screen when the external audio device is connected. | 11-19-2015 |
Patent application number | Description | Published |
20100181997 | METHODS AND APPARATUS FOR AN ANALOG ROTATIONAL SENSOR HAVING MAGNETIC SENSOR ELEMENTS - A sensor includes a signal generation module including a magnetic sensor to provide position information for generating first and second waveforms corresponding to the position information. An analog signal processing module provides an algebraic manipulation of a subset of the first waveform, the second waveform, a first inverted waveform, and a second inverted waveform, to generate a linear output signal. | 07-22-2010 |
20110121825 | METHODS AND APPARATUS FOR AN ANALOG ROTATIONAL SENSOR HAVING MAGNETIC SENSOR ELEMENTS - A sensor includes a magnetic position sensing element to generate angular position information, a first signal generator, a second signal generator, a first inverter to invert the first waveform for providing a first inverted waveform and a second inverter to invert the second waveform for providing a second inverted waveform, wherein the first and second waveforms are inverted about an offset voltage, and an analog signal processing module to generate a linear output signal from the first waveform, the second waveform, the first inverted waveform, and the second inverted waveform. | 05-26-2011 |
20110248708 | METHODS FOR AN ANALOG ROTATIONAL SENSOR HAVING MAGNETIC SENSOR ELEMENTS - Methods for providing a magnetic sensor, including providing a signal generation module, providing an analog signal processing module for providing an algebraic manipulation of the first waveform and the second waveform to generate a linear position output voltage signal, and providing a signal inversion module coupled to the signal generation module. | 10-13-2011 |
Patent application number | Description | Published |
20100202457 | Highly Integrated Media Access Control - A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput. The enhanced functionality includes header suppression and expansion, DES encryption and decryption, fragment reassembly, concatenation, and DMA operations | 08-12-2010 |
20110274122 | Highly Integrated Media Access Control - A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput. The enhanced functionality includes header suppression and expansion, DES encryption and decryption, fragment reassembly, concatenation, and DMA operations. | 11-10-2011 |
20130279523 | Highly Integrated Media Access Control - A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput.. The enhanced functionality includes header suppression and expansion. DES encryption and decryption, fragment reassembly, concatenation, and DMA operations. | 10-24-2013 |
Patent application number | Description | Published |
20080222232 | Method and Apparatus for Widget and Widget-Container Platform Adaptation and Distribution - A method includes receiving a request for a widget-container defined in response to a reference to the widget-container being accessed from a content aggregation point. The widget-container is a procedural software framework configured to be executed within the content aggregation point. The widget-container has a portion configured for receiving a widget. The method includes modifying a portion of the widget-container. The portion of the widget-container is based on a first configuration before the modifying and based on a second configuration substantially compliant with a content rule associated with the content aggregation point after the modifying. | 09-11-2008 |
20080222613 | METHOD AND APPARATUS FOR DATA PROCESSING - A method and system can include multiple data handling stages for manipulating tracked information associated with content distributed to users and/or computers, such as static objects, media objects, and/or software objects, for example. The content can be distributed as widget instances and the associated tracked information can be received over a network. The information received can be associated with a session corresponding to each widget instance and/or with multiple identifiers, such as widget, user, content, session, content aggregation point, processor, and/or placement identifiers, for example. Data handling processes, including sorting, storing, filtering, combining, queuing, and/or authenticating, for example, can be performed during the data handling stages. The processed information can be used to determine modifications to a behavior associated with widgets and/or widget containers. | 09-11-2008 |
20080222658 | METHOD AND APPARATUS FOR WIDGET AND WIDGET-CONTAINER DISTRIBUTION CONTROL BASED ON CONTENT RULES - A method includes receiving an instruction used to define a widget-container containing a service module associated with a widget. The widget-container is a procedural software framework configured to be executed at a widget-container processing device in response to a reference to the widget-container being accessed from a content aggregation point. The widget-container has a portion configured for receiving the widget. The method also includes determining whether processing of the widget within the portion of the widget-container is restricted and/or allowed. | 09-11-2008 |
20100100605 | METHODS AND APPARATUS FOR MANAGEMENT OF INTER-WIDGET INTERACTIONS - In one embodiment, a processor-readable medium storing code representing instructions to cause a processor to perform a process includes code to transmit using a communication channel a discovery signal from a first virally spread widget that has at least a portion executed at a content aggregation point to a second virally spread widget. The code also includes code to receive at the first virally spread widget a response signal sent from the second virally spread widget in response to the discovery signal. | 04-22-2010 |
20100100626 | METHODS AND APPARATUS RELATED TO INTER-WIDGET INTERACTIONS MANAGED BY A CLIENT-SIDE MASTER - In one embodiment, a method includes receiving at a first widget executing at a first client a first signal sent from a second widget executing at a second client. The first signal can be associated with an interactive session between at least the first widget and the second widget. The first widget can be selected to operate as a client-side master. The method can also include defining at the first widget, and based on the first signal, a second signal having a master flag. The second signal can be sent from the first widget to the second widget. | 04-22-2010 |
20120227060 | METHOD AND APPARATUS FOR WIDGET-CONTAINER HOSTING AND GENERATION - A method includes receiving at least one of a widget or a reference to a widget, where the widget can be at least one of a static data object, a media object, or a software object. At least a portion of a widget container, which is a procedural software framework containing a service module associated with the widget and the widget, is generated. The service module can be a pre-defined function associated with the widget container before the widget container is generated. The widget container can be configured to be executed at a widget-container processing device in response to a reference to the widget container being accessed from a processor-readable vehicle. | 09-06-2012 |
20160041714 | METHOD AND APPARATUS FOR WIDGET AND WIDGET-CONTAINER DISTRIBUTION CONTROL BASED ON CONTENT RULES - A method includes receiving an instruction used to define a widget-container containing a service module associated with a widget. The widget-container is a procedural software framework configured to be executed at a widget-container processing device in response to a reference to the widget-container being accessed from a content aggregation point. The widget-container has a portion configured for receiving the widget. The method also includes determining whether processing of the widget within the portion of the widget-container is restricted and/or allowed. | 02-11-2016 |
Patent application number | Description | Published |
20130156075 | HYBRID CODEBOOK DESIGN FOR WIRELESS SYSTEMS - Briefly, in accordance with one or more embodiments, a codebook for wireless transmissions may be generated by dividing a codebook into a fixed set of codewords and an adaptive set of codewords. The adaptive set of codewords may be scaled to cluster together and then rotated to be centered or nearly centered about a target. The adaptive set of codewords may then be merged with the fixed set of codewords to provide a hybrid codebook. A codeword from the hybrid codebook may be selected for precoding a transmission to provide a minimum, or nearly minimum, quantization error. | 06-20-2013 |
20130265972 | Updating Channel State Information in a Wireless Network - A system for updating channel state information may include a base station wirelessly sending a reference signal to a user device. The bases station may receive channel state information based on the reference signal. Then, the bases station may determine a number of transport blocks to enable, a number of layers to use, and an order of modulation for each transport block based on the channel state information. The bases station may then receive subsequent channel state information from the user device using the determined parameters. | 10-10-2013 |
20130265975 | Transmitting Uplink Control Information - In accordance with some embodiments, uplink control information, including a channel quality index, may be transmitted using at least two layers. As a result, more information can be provided for use in situations, such as those involving carrier aggregation, where information for a large number of component carriers must all be provided on one primary component carrier. | 10-10-2013 |
20130329594 | METHODS, APPARATUSES, AND SYSTEMS FOR FLEXIBLE RANK ADAPTATION IN A WIRELESS COMMUNICATION NETWORK - In various embodiments, a first base station may communicate with a first user equipment (UE) over a wireless communication channel. The first base station may receive an interference indication from a second base station communicating with a second UE on the same wireless communication channel. In response to the interference indication, the first base station may transmit a request to the first UE for the first UE to send feedback information associated with the wireless communication channel to the first base station for one or more transmission ranks specified by the first base station. The first UE may determine the requested feedback information and transmit the determined feedback information to the first base station. Thereafter, the first base station may reduce a transmission rank of ongoing transmissions to the UE based on the interference indication and the determined feedback information. | 12-12-2013 |
20140029684 | METHOD AND APPARATUS FOR FEEDBACK IN 3D MIMO WIRELESS SYSTEMS - Systems and methods provide channel state information feedback in a multiple-input multiple-output (MIMO) system. A method quantizes a pre-coding matrix indicator (PMI) and feeds it back from a user equipment (UE) to an evolved Node B (eNodeB). The method may use codebooks for vector quantization of optimal horizontal direction and a scalar quantizer to quantize an optimal vertical direction from the eNodeB to a selected UE. | 01-30-2014 |
20140038623 | Techniques for Sending or Receiving Channel State Information Reports Associated with a Coordinated Multi-Point Scheme - Examples are disclosed for sending or receiving channel state information (CSI) reports associated with coordinated multi-point (CoMP) schemes. The examples include user equipment (UE) constraining CSI feedback to one or more transmission points implementing a CoMP scheme with the UE. The examples also include a transmission point such as an evolved node B (eNB) triggering CSI feedback and receiving a CSI report in response to the trigger. The CSI report generated based on the UE constraining CSI feedback. Constraining CSI feedback may include the UE generating fewer CSI reports, reusing information between CSI reports or increasing an amount of time allowed for processing and generating CSI reports. Other examples are described and claimed. | 02-06-2014 |
20140078939 | METHOD AND APPARATUS FOR POWER CONTROL IN FULL-DUPLEX WIRELESS SYSTEMS WITH SIMULTANEOUS TRANSMISSION RECEPTION - Wireless-device-to-wireless device (WD-WD) interference in a full-duplex wireless network is managed by an uplink transmit power control technique that minimizes interference experienced in downlink signals at other wireless devices in the wireless network. In one exemplary embodiment, an instantaneous antenna gain of the wireless device and a target uplink Signal-to-Interference-plus-Noise Ratio (SINR) of an uplink signal of the wireless device to the home base station are determined at the wireless device. A Noise plus Interference level at the home base station is received by either a closed-loop or an open-loop feedback technique. The uplink power level for an uplink signal of the wireless device is determined based on the determined antenna gain, the determined target uplink SINR and the received Noise plus Interference level at the home base station. | 03-20-2014 |
20140301217 | SIMULTANEOUS TRANSMIT AND RECEIVE - A simultaneous transmit and receive (STR) technology is described. The eNB is configured with a downlink centric measurement threshold and an uplink centric measurement threshold which increase overall capacity in the wireless cellular network. A signal measurement command is transmitted from the eNB to the UE instructing the UE to take a signal quality measurement. The signal quality measurement is received from the UE at the eNB. It is determined whether the signal quality measurement is greater than the downlink centric measurement threshold and whether the signal quality measurement is greater than the uplink centric measurement threshold. The downlink centric measurement threshold, the uplink centric measurement threshold, and the DL/UL ratio are configured to increase capacity in the wireless cellular network through selective use of STR | 10-09-2014 |
20140341048 | ORTHOLOGONAL BEAMFORMING FOR MULTIPLE USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MU-MIMO) - Technology to generate an improved signal-to-interference-plus-noise ratio (SINR) from a set of orthogonal reference signals (RSs) is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a set of orthogonal RSs from a node; calculate a SINR for each of the RSs in the set of orthogonal RSs to form a set of SINR; select a maximum SINR from the set of SINR; and quantize the maximum SINR for the set of SINR. Each reference signal can represent a transmission beam direction. | 11-20-2014 |
20150029875 | DOWNTILT SELECTION IN A FULL DIMENSIONAL MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - A technology for an enhanced node B (eNode B) in a cellular network that is operable to determine downtilt using full dimensional (FD) multiple-input multiple-output (MIMO). A plurality of orthogonal frequency division multiple access (OFDMA) signals can be transmitted, wherein each transmitted OFDMA signal is transmitted with a selected downtilt angle from a two dimensional antenna array of the eNode B. Reference signal received power (RSRP) feedback information can be received from a UE for each of transmitted OFDMA signals at the selected downtilt angles. Received signal strength indicator (RSSI) feedback information can be received from the UE. A reference signal received quality (RSRQ) can be calculated for each of the selected antennas angles using the RSRP feedback information and the RSSI feedback information. A downtilt angle can be selected for transmitting data from the eNode B with a highest signal to interference plus noise ratio (SINR). | 01-29-2015 |
20150043439 | COOPERATIVE MULTIPLE BEAM TRANSMISSION - Briefly, in accordance with one or more embodiments, cooperation of multiple beams for transmission is provided by identifying at least two beams among multiple beams that are dominant for a user, determining if there is any beam collision between the at least two beams, and, if there is beam collision between the at least two beams, delaying scheduling on one or more weaker ones of the at least two beams for other users and combining the two or more beams for transmission to the user. Alternatively, cooperation of multiple beams for transmission is provided by, if there is beam collision between the at least two beams, muting one or more weaker ones of the at least two beams and transmitting to the user with a stronger one of the at least two beams. | 02-12-2015 |
20150139121 | METHOD AND APPARATUS FOR FEEDBACK IN 3D MIMO WIRELESS SYSTEMS - Systems and methods provide channel state information feedback in a multiple-input multiple-output (MIMO) system. A method quantizes a pre-coding matrix indicator (PMI) and feeds it back from a user equipment (UE) to an evolved Node B (eNodeB). The method may use codebooks for vector quantization of optimal horizontal direction and a scalar quantizer to quantize an optimal vertical direction from the eNodeB to a selected UE. | 05-21-2015 |
20150139292 | HYBRID BEAMFORMING FOR DATA TRANSMISSION - Technology to provide hybrid beamforming feedback is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a reference signal (RS) from a node; calculate an optimal channel direction from the RS; calculate an optimal signal-to-interference-plus-noise ratio (SINR) for the optimal channel direction, where the optimal SINR is conditionally calculated with an intra-cell interference component or calculated without the intra-cell interference component based on a feedback configuration; and transmit the optimal channel direction and the optimal SINR to the node. | 05-21-2015 |
20150180684 | CSI-RS ANTENNA PORTS EXTENSION AND 3D CODEBOOK DESIGN - A system and a method is disclosed for selecting at least one vertical precoding vector of a three-dimensional Multiple Input Multiple Output (3D-MIMO) configuration based on Channel State Information-Reference Signal (CSI-RS) information that is feedback from a wireless terminal device to an evolved Node B (eNB). The 3D-MIMO CSI-RS process is configured for a plurality of CSI-RS ports in which the plurality of CSI-RS ports that are grouped into a plurality of CSI-RS port groups and in which corresponds to the 3D arrangement of antennas. CSI configuration information for the different CSI-RS port groups can be a time-domain-based CSI-RS process, a frequency-domain-based CSI-RS process, a code-domain-based CSI-RS process, or a combination thereof. CSI-RS information is measured for each CSI-RS group and feedback for selection of the at least one vertical precoding vector. | 06-25-2015 |
20150200718 | TECHNIQUES FOR BEAMFORMING TO MITIGATE MULTI-USER LEAKAGE AND INTERFERENCE - Examples are disclosed for beamforming to mitigate multi-user leakage and interference. The examples include an evolved node B (eNB) receiving feedback from user equipment (UEs) to indicate strongest or highest channel gains for various beams included in a plurality of beam sets. A selection process or scheme may then be implemented to select individual beams for a UE that minimizes or reduces leakage caused by the UE's use of a given beam. Reducing leakage may reduce interference to other UEs using other beams. Other examples are described and claimed. | 07-16-2015 |
20150215014 | ANTENNA SELECTION CODEBOOK FOR FULL DIMENSIONAL MIMO SYSTEMS - Embodiments of a system and method for beamforming in a Wireless Network are generally described herein. In some embodiments, an enhanced Node B (eNB) transmits to User Equipment (UE), from a plurality (N | 07-30-2015 |