Patent application number | Description | Published |
20100018876 | ELECTROCHEMICAL METHOD TO MEASURE DNA ATTACHMENT TO AN ELECTRODE SURFACE IN THE PRESENCE OF MOLECULAR OXYGEN - The present disclosure provides methods and compositions for conducting an assay to detect a polynucleotide. In particular, ruthenium complexes having reduction potentials that do not coincide with the reduction potential of molecular oxygen are disclosed and amperometric techniques for their use are described. In preferred embodiments, the ruthenium complex is ruthenium (III) pentaamine pyridine and the polynucleotide that is detected is DNA. Further, techniques for enhancing detectable contrast between hybridized and unhybridized nucleic acids are disclosed. In particular, the use of elongated target strands as well as the use of uncharged probe strands are discussed. | 01-28-2010 |
20100167376 | METHODS FOR PROVIDING CELLULAR LYSATES FROM CELL WALL-CONTAINING SAMPLES - The present invention provides methods useful for making lysates from cell wall-containing cellular samples, including plant tissue samples and cultures of yeast or bacteria. The invention further provides compositions (e.g., solutions) that can be used in the methods of the invention, and kits comprising solutions and/or other reagents useful for carrying out the methods of the invention. | 07-01-2010 |
20100248363 | MATRICES AND MEDIA FOR STORAGE AND STABILIZATION OF BIOMOLECULES - The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention. | 09-30-2010 |
20120100522 | STABILIZED CHEMICAL DEHYDRATION OF BIOLOGICAL MATERIAL - The present invention provides compositions and methods that enable the stabilization and storage of samples by contacting a sample with an assembly of particles, and reducing the water activity level of the contacted sample. By reducing the water activity level of the sample, the assembly of particles minimizes the degradation of the sample. Stabilizers may or may not be added to the assembly of particles to further minimize the degradation of the sample. Subsequently to storage in the assembly of particles, the samples are recoverable by eluting the assembly of particles with a fluid solution. In one embodiment, the entire assembly of particles will dissolve into the solution. In another embodiment, only part of the assembly of particles will dissolve into the solution. The assembly of particles provides the advantage that while it is porous, it comprises non-porous particulate material. | 04-26-2012 |
20120308987 | MATRICES AND MEDIA FOR STORAGE AND STABILIZATION OF BIOMOLECULES - The present invention provides compositions useful for biomolecule storage comprising a water soluble inorganic compound, a stabilizer, or a combination thereof. The present invention also provides methods of using the compositions of the invention to store biomolecules in the dry state and in solution, as well as sample carriers and kits comprising compositions of the invention. | 12-06-2012 |
Patent application number | Description | Published |
20080273810 | VIDEO CODING MODE SELECTION USING ESTIMATED CODING COSTS - This disclosure describes techniques for coding mode selection using estimated coding costs. To provide high compression efficiency, for example, an encoding device may attempt to select a coding mode for coding blocks of pixels that codes the data of the blocks with high efficiency. To this end, the encoding device may perform coding mode selection based on estimates of coding cost for at least a portion of the possible modes. In accordance with the techniques described herein, the encoding device estimates the coding cost for the different modes without actually coding the blocks. In fact, in some aspects, the encoding module device may estimate the coding cost for the modes without quantizing the data of the block for each mode. In this manner, the coding cost estimation techniques of this disclosure reduce the amount of computationally intensive calculations needed to perform effective mode selection. | 11-06-2008 |
20100020886 | SCALABILITY TECHNIQUES BASED ON CONTENT INFORMATION - Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification. The first and second groups are associated with quality levels. A user can request a target quality level. | 01-28-2010 |
20110080955 | METHOD AND APPARATUS FOR MOTION VECTOR PROCESSING - A method for processing a plurality of motion vectors is disclosed. The method includes determining a number of different block sizes in the video frame; and, performing a variable block size motion vector process if the number of different block sizes in the video frame is greater than one, the variable block size motion vector process comprising constructing a pyramid of motion vectors from the plurality of motion vectors, the pyramid having at least a first layer and a second layer of motion vectors, each of the first and second layers having a set of motion vectors based on a particular block size. An apparatus for performing the inventive method is also disclosed. | 04-07-2011 |
20120057629 | Rho-domain Metrics - Video encoders, systems and methods are described that characterize video encoding processes using a ρ-domain deviation metric. The deviation metric represents a weighted difference between actual non-zero coefficients and the expected non-zero coefficients, the actual and expected coefficients corresponding to quantization of a macroblock in a video frame during video encoding of the frame. The deviation metric is used to adjust the video encoding process to obtain an optimized encoding bit rate for a desired video encoding quality by selecting a quantizing parameter based on a normalized value of the deviation metric. The quantizing parameter can be selected from a table indexed using the deviation metric. | 03-08-2012 |
20120057633 | Video Classification Systems and Methods - Video encoder systems and methods are described that employ table-based content classification. One or more tables relate quantization parameters and P-points for a frame of video that typically comprises macroblocks. A deviation representative of a difference between original and decoded versions of a macroblock is determined, the deviation being further representative of a distribution frequency of the value of a distortion for a P-point. The P-point corresponds to a distortion value that is associated with a minimum rate difference between encoding modes for a macroblock. A motion complexity index is updated using a quantization parameter and non-zero coefficients of the encoded frame. An encoding mode for the macroblock can be retrieved from the tables using the motion complexity index to reference mode information maintained in the tables. | 03-08-2012 |
20120057634 | Systems and Methods for Video Content Analysis - Video analytics systems and methods are described that typically comprise a video encoder operable to generate macroblock video analytics metadata (VAMD) from a video frame. Functional modules receive the VAMD and an encoded version of the video frame is configured to generate video analytics information related to the frame using the VAMD and the encoded video frame. The downstream decoder can use the VAMD to obtain a global motion vector related to the frame, detect and track motion of an object within the frame and monitor a line provided or found within the frame. Traversals of the line by a moving object can be detected and counted using information in the VAMD and the line may be part of a polygon that delineates an area to be monitored within the encoded frame. The VAMD can comprise macroblock level and video frame level information. | 03-08-2012 |
20120057640 | Video Analytics for Security Systems and Methods - Video processing, encoding and decoding systems are described. A processor receives video frames representative of a sequence of images captured by a video sensor and the video frames are encode according to a desired video encoding standard. A video analytics processor receives video analytics metadata generated by the video encoder from the sequence of images and produces video analytics messages for transmission to a client device which performs client side video analytics processing. The video analytics metadata may comprise pixel domain video analytics information directly from an analog-to-digital front end or directly from an encoding engine as the engine is performing compression. | 03-08-2012 |
20120294360 | CHANNEL SWITCH FRAME - Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions. | 11-22-2012 |
20130188742 | METHOD AND APPARATUS FOR ENCODER ASSISTED-FRAME RATE UP CONVERSION (EA-FRUC) FOR VIDEO COMPRESSION - An Encoder Assisted Frame Rate Up Conversion (EA-FRUC) system that utilizes video coding and pre-processing operations at the video encoder to exploit the FRUC processing that will occur in the decoder in order to improve compression efficiency and reconstructed video quality is disclosed. One operation of the EA-FRUC system involves determining whether to encode a frame in a sequence of frames of a video content by determining a spatial activity in a frame of the sequence of frames; determining a temporal activity in the frame; determining a spatio-temporal activity in the frame based on the determined spatial activity and the determined temporal activity; determining a level of a redundancy in the source frame based on at least one of the determined spatial activity, the determined temporal activity, and the determined spatio-temporal activity; and, encoding the non-redundant information in the frame if the determined redundancy is within predetermined thresholds. | 07-25-2013 |
20130308707 | METHODS AND DEVICE FOR DATA ALIGNMENT WITH TIME DOMAIN BOUNDARY - Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes obtaining content information of multimedia data, and encoding the multimedia data so as to align a data boundary with a frame boundary in a time domain, wherein said encoding is based on the content information. In another aspect, a method of processing multimedia data includes obtaining a content classification of the multimedia data, and encoding blocks in the multimedia data as intra-coded blocks or inter-coded blocks based on the content classification to increase the error resilience of the encoded multimedia data. Apparatus that can process multimedia data described in these methods are also disclosed. | 11-21-2013 |
20140369417 | SYSTEMS AND METHODS FOR VIDEO CONTENT ANALYSIS - Video analytics systems and methods are described that typically comprise a video encoder operable to generate macroblock video analytics metadata (VAMD) from a video frame. Functional modules receive the VAMD and an encoded version of the video frame is configured to generate video analytics information related to the frame using the VAMD and the encoded video frame. The downstream decoder can use the VAMD to obtain a global motion vector related to the frame, detect and track motion of an object within the frame and monitor a line provided or found within the frame. Traversals of the line by a moving object can be detected and counted using information in the VAMD and the line may be part of a polygon that delineates an area to be monitored within the encoded frame. The VAMD can comprise macroblock level and video frame level information. | 12-18-2014 |
Patent application number | Description | Published |
20100103054 | SLIDING ANTENNA APPARATUS - Various embodiments of a mobile computing device are described. In one embodiment, the mobile computing device comprises an internal antenna system and a first housing coupled to a second housing by one or more electrically conductive sliding portions, the one or more electrically conductive sliding portions to operate as radiating arms for the internal antenna system. Other embodiments are described and claimed. | 04-29-2010 |
20100304785 | ENHANCED INTERNAL ANTENNA ARCHITECTURE FOR A MOBILE COMPUTING DEVICE - Various embodiments of an internal multi-band antenna architecture for a mobile computing device are described. An internal antenna architecture for a mobile computing device may include multiple antenna elements, including a first internal antenna element configured to operate in a downlink frequency sub-band of at least one frequency band for communication in a first mode, and a second internal antenna element configured to operate in an uplink frequency sub-band of the at least one frequency band for communication in the first mode. Other embodiments are described and claimed. | 12-02-2010 |
20110043408 | COMPACT MULTI-BAND PLANAR INVERTED F ANTENNA - A simple, compact multi-band PIFA including two arm portions, where one arm portion is grounded at two points to form a loop, a ground plane, and a plastic carrier and housing. The antenna radiates a same signal from both arm portions, at different efficiencies according to the radiated frequency and the effective length of each arm. The antenna is made from a single standard metal sheet by cutting it and is assembled with the metal ground plane and the other plastic parts. In one embodiment, the antenna is folded into a 3D U-shape to reduce its size for use in mobile communication devices. In another embodiment, the antenna is a penta-band antenna with return loss of −6 B or better and measures 40×8×8 mm or smaller. | 02-24-2011 |
20110291490 | TUNABLE WIRELESS POWER DEVICE - Exemplary embodiments are directed to wireless power devices. A device may include a transmit antenna and a metallic structure spaced from and configured for detuning the transmit antenna. The device may further include a circuit for tuning the transmit antenna. | 12-01-2011 |
20130016024 | WIDEBAND ANTENNA SYSTEM WITH MULTIPLE ANTENNAS AND AT LEAST ONE PARASITIC ELEMENTAANM Shi; GuiningAACI San DiegoAAST CAAACO USAAGP Shi; Guining San Diego CA USAANM Tran; Allen Minh-TrietAACI San DiegoAAST CAAACO USAAGP Tran; Allen Minh-Triet San Diego CA USAANM Wyrwich; Elizabeth M.AACI San DiegoAAST CAAACO USAAGP Wyrwich; Elizabeth M. San Diego CA US - A wideband antenna system with multiple antennas and at least one parasitic element is disclosed. In an exemplary design, an apparatus includes a first antenna, a second antenna, and a parasitic element. The first antenna has a shape of an open-ended loop with two ends that overlap and are separated by a gap. The second antenna may also have a shape of an open-ended loop with two ends that overlap and are separated by a gap. The parasitic element is located between the first and second antennas. The first and second antennas may be placed side by side on a board, located at either the top end or the bottom end of a wireless device, and/or formed on opposite sides (e.g., the front and back sides) of the board. The parasitic element may be formed on a plane that is perpendicular to the plane on which the first and second antennas are formed. | 01-17-2013 |
20140376428 | MULTI-FREQUENCY RANGE PROCESSING FOR RF FRONT END - Techniques for supporting multi-frequency range signal processing for a wireless device. In an aspect, a first antenna is provided to support first and third frequency ranges. A second antenna is separately provided to support a second frequency range, wherein the second is between the first and third frequency ranges. In other aspects, the second antenna can further support a fourth frequency range higher than the third frequency range. Other frequency range combinations, dual antenna aspects, and carrier aggregation features are further disclosed herein. | 12-25-2014 |
Patent application number | Description | Published |
20140197814 | PROGRAMMABLE FREQUENCY RANGE FOR BOOST CONVERTER CLOCKS - Techniques for generating a boost clock signal for a boost converter from a buck converter clock signal, wherein the boost clock signal has a limited frequency range. In an aspect, the boost clock signal has a maximum frequency determined by Vbst/T, wherein Vbst represents the difference between a target output voltage and a battery voltage, and T represents a predetermined cycle duration. The boost converter may include a pulse insertion block to limit the minimum frequency of the boost clock signal, and a dynamic blanking/delay block to limit the maximum frequency of the boost clock signal. Further techniques are disclosed for generally implementing the minimum frequency limiting and maximum frequency limiting blocks. | 07-17-2014 |
20140204488 | ESD CLAMPING TRANSISTOR WITH SWITCHABLE CLAMPING MODES OF OPERATION - In a particular embodiment, an apparatus includes an electrostatic discharge (ESD) clamping transistor coupled to a ground terminal of a device. The apparatus further includes a switch coupled between a body terminal of the ESD clamping transistor and the around terminal. | 07-24-2014 |
20140210548 | SOFT TURN-OFF FOR BOOST CONVERTERS - Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from a first value to a second (lower) value over time, which advantageously reduces ringing (due to high quality factor or Q) when initially entering the OFF state, while maintaining low conduction losses during the remainder of the OFF state. Further techniques are provided for implementing the high-side switch as a plurality of parallel-coupled transistors. | 07-31-2014 |
20140210550 | REVERSE CURRENT PREVENTION - Techniques for preventing reverse current in applications wherein a tracking supply voltage is placed in parallel with a switching power stage. The tracking supply voltage may be boosted to a level higher than a battery supply voltage using, e.g., a boost converter. In an aspect, a negative current detection block is provided to detect negative current flow from the boosted tracking supply voltage to the battery supply voltage. A high-side switch of the switching power stage may be disabled in response to detecting the negative current. To prevent false tripping, the tracking supply voltage may be further compared with the battery supply voltage, and a latch may be provided to further control the high-side switch. | 07-31-2014 |
20140210559 | DYNAMIC HEADROOM FOR ENVELOPE TRACKING - Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described. | 07-31-2014 |
20140213208 | NOISE SHAPING FOR SWITCHING CIRCUITRY - Techniques for creating one or more notch frequencies in the power density spectrum of an output voltage generated by switching circuitry. In an aspect, high- and low-side switches are coupled to an output voltage via an inductor. The spectral power of the output voltage at one or more frequencies is estimated, and the estimated spectral power is provided to a switch controller controlling the switches. The switch controller may be configured to switch the switches only in response to detecting that the estimated spectral power at the notch frequency is at a minimum. In certain exemplary aspects, the techniques may be incorporated in an envelope-tracking system, wherein the switching circuitry forms part of a switched-mode power supply (SMPS) supplying low-frequency power to a power amplifier load. | 07-31-2014 |
Patent application number | Description | Published |
20080284508 | OUTPUT CIRCUITS WITH CLASS D AMPLIFIER - Output circuits using pulse width modulation (PWM) and/or pulse density modulation (PDM) are described. In one aspect, a PWM output circuit includes a PWM modulator that operates based on a square wave signal instead of a sawtooth or triangular wave signal. In another aspect, a PDM output circuit includes a PDM modulator that uses variable reference voltages to reduce variations in switching frequency. In yet another aspect, a dual-mode output circuit supports both PWM and PDM and includes a pulse modulator and a class D amplifier. The pulse modulator performs PWM on an input signal if a PWM mode is selected and performs PDM on the input signal if a PDM mode is selected. The class D amplifier receives a driver signal from the pulse modulator and generates an output signal. | 11-20-2008 |
20110285463 | OUTPUT CIRCUITS WITH CLASS D AMPLIFIER - Output circuits using pulse width modulation (PWM) and/or pulse density modulation (PDM) are described. In one aspect, a PWM output circuit includes a PWM modulator that operates based on a square wave signal instead of a sawtooth or triangular wave signal. In another aspect, a PDM output circuit includes a PDM modulator that uses variable reference voltages to reduce variations in switching frequency. In yet another aspect, a dual-mode output circuit supports both PWM and PDM and includes a pulse modulator and a class D amplifier. The pulse modulator performs PWM on an input signal if a PWM mode is selected and performs PDM on the input signal if a PDM mode is selected. The class D amplifier receives a driver signal from the pulse modulator and generates an output signal. | 11-24-2011 |
20110285472 | OUTPUT CIRCUITS WITH CLASS D AMPLIFIER - Output circuits using pulse width modulation (PWM) and/or pulse density modulation (PDM) are described. In one aspect, a PWM output circuit includes a PWM modulator that operates based on a square wave signal instead of a sawtooth or triangular wave signal. In another aspect, a PDM output circuit includes a PDM modulator that uses variable reference voltages to reduce variations in switching frequency. In yet another aspect, a dual-mode output circuit supports both PWM and PDM and includes a pulse modulator and a class D amplifier. The pulse modulator performs PWM on an input signal if a PWM mode is selected and performs PDM on the input signal if a PDM mode is selected. The class D amplifier receives a driver signal from the pulse modulator and generates an output signal. | 11-24-2011 |
20140111170 | BOOST CONVERTER CONTROL - Simple and efficient techniques for closed loop control of a boost converter. In an aspect, a current feed-forward (CFF) mode of operation includes providing current information to a control logic block controlling transistor switches of the boost converter to advantageously smooth the signals present in the closed loop control of the system. In another aspect, a modified peak current (MPC) mode of operation includes providing a simplified control mechanism based on a peak current mode of operation. Both CFF mode and MPC mode may share similar circuit elements, allowing a single implementation to selectively implement either of these modes of control. Further techniques are provided for determining average current information for the logic block. | 04-24-2014 |
20140111276 | BOOST CONVERTER CONTROL FOR ENVELOPE TRACKING - Techniques for controlling boost converter operation in an envelope tracking (ET) system. In an aspect, an enable generation block is provided to generate an enable signal for a boost converter, wherein the enable signal is turned on in response to detecting that a sum of a first headroom voltage and an enable peak of a tracking supply voltage is greater than an amplifier supply voltage of the ET system. The enable signal may be turned on for a predetermined enable on duration. In another aspect, a target generation block is provided to generate a target voltage for the boost converter, wherein the target voltage comprises the sum of a second headroom voltage and a target peak of the tracking supply voltage. | 04-24-2014 |
Patent application number | Description | Published |
20130128863 | Deferred Measurement Control Reading of System Information Block (SIB) Messages - A method of wireless communication defers measurement control reading of a SIB. The method includes determining whether a user equipment (UE) has been redirected to a first radio access technology (RAT) from a second RAT. The method also includes selectively reading a system information block (SIB) based on whether the UE was redirected to the first RAT from a second RAT. | 05-23-2013 |
20130176961 | APPARATUS AND METHODS OF UNAMBIGUOUS MAC-I PDU FORMATTING - The described aspects include a user equipment (UE) apparatus and corresponding method of performing a High-Speed Uplink Packet Access (HSUPA) transmission. The aspects include determining availability of information for transmission while the UE is in a Cell_FACH state and an idle mode. Further, aspects include generating a message including a scheduling information (SI) indicator during a collision resolution phase of an uplink procedure when SI data is allowed to be transmitted during the collision resolution phase, wherein the SI indicator identifies whether the SI data is included in a Medium Access Control-i (MAC-i) Packet Data Unit (PDU). Additionally, the aspects include transmitting the message, destined for a network component, during the collision resolution phase. The described aspects also include a corresponding network component and method for receiving the message and unambiguously determining presence of SI data in the MAC-i PDU. | 07-11-2013 |
20130229964 | METHOD AND APPARATUS FOR MAINTAINING A POWER SAVING STATE AT A NETWORK DEVICE - The described aspects include a user equipment (UE) apparatus, network component, and corresponding methods of communicating power saving information using common uplink messages. By using a resource update message to communicate power saving information from a UE, the UE need not request and establish resources with the network for requesting a power state that uses less power than a current state. Similarly, in UE mobility, the UE can indicate previous power saving information to a target Node B to cause the target Node B to refrain from assigning resources to the UE. | 09-05-2013 |
20140022989 | METHOD AND APPARATUS FOR DYNAMICALLY CONFIGURING A CELL UPDATE MESSAGE - The present disclosure presents a method and apparatus for dynamically configuring a cell update message at a user equipment (UE). For example, the method may include determining that a size of the cell update message at the UE is above a threshold value after a “measured results on random access channel (RACH)” information element (IE) is excluded from the cell update message. Furthermore, such an example method may include removing one or more IEs from the cell update message until the size of the cell update message is at or below the threshold value. As such, dynamic configuration of a cell update message at a UE is achieved. | 01-23-2014 |
20140078985 | APPARATUS AND METHOD FOR PRIORITIZING NON-SCHEDULED DATA IN A WIRELESS COMMUNICATIONS NETWORK - Techniques for prioritizing non-scheduled data are described. Non-scheduled data to be transmitted on a non-scheduled MAC-d flow having a non-scheduled priority and scheduled data to be transmitted on a scheduled MAC-d flow having a scheduled priority may be identified by a user equipment (UE). The UE may transmit the non-scheduled MAC-d flow and the scheduled MAC-d flow according to a priority condition. In one aspect, the UE may receive a pre-allocation of power associated with a non-empty non-scheduled MAC-d flow. Based on a priority condition that the non-scheduled priority is a highest priority, the UE may apply all of the pre-allocation of power when transmitting the non-scheduled MAC-d flow. In one aspect, based on a priority condition that the non-scheduled priority is a lower priority, the UE may adjust the non-scheduled priority and/or the scheduled priority so that the non-scheduled priority is a higher priority | 03-20-2014 |
20140098755 | APPARATUS AND METHOD FOR DEFERRING CELL UPDATE MESSAGES FROM USER EQUIPMENT - Various aspects of the present disclosure enable a plurality of mobile devices (UEs) within a cell to spread out in time their respective transmissions of signaling messages, such as cell update messages, when the network enables or disables enhanced uplink (EUL, sometimes referred to as high-speed uplink packet access or HSUPA) while the UE is in the CELL_FACH state, by changing SIB5 or SIB5bis. In this way, the network load may be reduced, and a network blockage that otherwise might result from large numbers of UEs simultaneously transmitting the cell update message can be avoided. According to one example, a network node may be configured to distribute CELL_UPDATE messages or procedures to UEs when the network node enables or disables EUL in CELL_FACH by changing SIB5 or SIB5bis over time to reduce the network load. According to another example, a UE may be configured for utilizing a random timer or back-off timer to defer cell updates. | 04-10-2014 |
20140254506 | DEVICES AND METHODS FOR FACILITATING H-RNTI UPDATES IN NETWORK-INITIATED CELL REDIRECTION - Access terminals are adapted to facilitate updating an access terminal with a valid H-RNTI in response to a network-initiated redirection of an access terminal from a serving cell to a target cell in a wireless communications system. According to at least one example, an access terminal can acquire a target cell in response to a network-initiated redirection indicated by a received redirection message. A determination can be made that a current radio network temporary identity (RNTI) associated with the access terminal is invalid for use in the target cell. In response to the determination that the RNTI is invalid for use in the target cell, a cell update procedure may be initiated to obtain a valid RNTI for use in the target cell. Other aspects, embodiments, and features are also included. | 09-11-2014 |
20140334442 | METHOD AND APPARATUS FOR HANDOVER VOLTE CALL TO UMTS PS-BASED VOICE CALL - Aspects of the methods and apparatus relate to transferring a received Voice-over-Long Term Evolution (VoLTE) call to a High Speed Packet Access (HSPA) packet-switched (PS) based voice call. One aspect of the methods and apparatus include receiving a VoLTE call from a network and identifying uplink VoLTE handover characteristics of the VoLTE call for an uplink transmission to the network and a downlink VoLTE handover characteristics for a downlink transmission from the network. The aspect includes configuring uplink HSPA PS based handover characteristics that emulate the uplink VoLTE handover characteristics for the uplink transmission and configuring downlink HSPA PS based handover characteristics that emulate the downlink VoLTE handover characteristics for the downlink transmission. The aspect includes utilizing the uplink HSPA PS based handover characteristics during the uplink transmission to the network and utilizing the downlink HSPA PS based handover characteristics during the downlink transmission from the network. | 11-13-2014 |
20140376393 | APPARATUS AND METHODS FOR DYNAMICALLY REPORTING INTER-SYSTEM MEASUREMENT CAPABILITY IN A WIRELESS COMMUNICATION NETWORK - Aspects of the disclosure provide apparatus and methods of inter-system measurements operable at a user equipment (UE) in a wireless communication network. The UE establishes a connection with a network node in a first wireless communication network utilizing a first radio access technology (RAT), wherein the UE is capable of measuring a plurality of frequency bands of a second RAT greater in number than a measurement capability report limit of the first RAT. The UE further selects a subset of the plurality of frequency bands of the second RAT to be included in a measurement capability information element (IE) based on information provided by the network node and information stored at the UE. The UE further transmits the measurement capability IE to the network node. | 12-25-2014 |
20150036518 | APPARATUS AND METHODS FOR CONTINUOUS INTER-FREQUENCY MEASUREMENT RECONFIGURATIONS OF DC-HSUPA UE - Disclosed are systems and methods for continuous inter-frequency measurement reconfigurations in a DC-HSUPA User Equipment (UE). In one aspect, the system may configure the UE to perform intra-frequency measurements on a frequency f1 and inter-frequency measurements on a frequency f2 in a dual carrier (DC) downlink (DL) mode and a single carrier (SC) uplink (UL) mode. The system may then reconfigure the UE to operate in a DC UL mode and continuing to perform inter-frequency measurements on the frequency f2 in the DC UL mode. The system may then reconfigure the UE to operate in the SC UL mode and continuing to perform inter-frequency measurements on frequency f2 in the SC UL mode. | 02-05-2015 |
20150119038 | METHOD AND APPARATUS FOR CELL RESELECTION DURING SERVING RADIO NETWORK SUBSYSTEM (SRNS) RELOCATION - The present disclosure presents a method and an apparatus for cell reselection during a SRNS relocation at a UE. For example, the disclosure presents a method for stopping signaling radio bearers (SRBs) sending a response message for the first Cell Update Confirm or the URA Update Confirm message and waiting for a layer two acknowledgement (L2 ACK) message from the network entity, triggering a second Cell Update or a URA Update procedure in a newly selected serving cell of the UE when waiting for the L2 ACK message from the network entity and waiting for the second Cell Update Confirm or the URA Update Confirm message, and performing a corrective action at the UE after the triggering of the second Cell Update or the URA Update procedure when the UE is waiting for the L2 ACK message from the network entity. As such, a cell reselection during a serving radio network subsystem (SRNS) relocation at a UE may be achieved. | 04-30-2015 |
20150146628 | TECHNIQUES FOR HANDLING RECONFIGURATION MESSAGES AND UPLINK DATA INDICATIONS - Apparatus and methods of wireless communication with a network entity by a user equipment includes identifying, by the user equipment, a change in availability of an enhanced uplink channel. Further, these aspects include waiting for an uplink data indication to trigger a cell update procedure, in response to the identified change in availability of an enhanced uplink channel. Also, these aspects include receiving a reconfiguration message before triggering of the cell update procedure, and receiving the uplink data indication, wherein the uplink data indication corresponds to a Layer 2 Acknowledgement or uplink data. Additionally, these aspects include handling the race condition between the reconfiguration message and the uplink data indication. | 05-28-2015 |
20150195755 | HANDLING CELL RESELECTION TO INTRA-FREQUENCY, INTER-FREQUENCY, AND INTER-RAT CELLS OF HOME PLMN - A method and apparatus for wireless communications are provided. A first cell on which a user equipment (UE) is camped may be identified as a visited Public Land Mobile Network (VPLMN) of the UE. Information of a second cell among neighboring cells of the first cell may be received via a broadcast message from the first cell. The second cell may be part of a home PLMN (HPLMN) and the HPLMN may not be an equivalent PLMN (EPLMN) to the VPLMN associated with the first cell. Alternatively, the second cell may belong to an Equivalent HPLMN (EPLMN). When the second cell is determined to be a best cell according to absolute priority reselection rules or a highest ranked cell among the neighboring cells of the first cell, the second cell may not be barred for a period of time from being considered or identified as a candidate for reselection. | 07-09-2015 |
20150201411 | HANDLING INVALID CONFIGURATIONS FOR ENHANCED UPLINK IN CELL_FACH STATE - Methods and apparatuses for improved uplink establishment in wireless networks are presented. For example, a method of mobile communication at a user equipment is presented that may include receiving, at a user equipment (UE) and from a network entity, configuration information associated with an enhanced uplink in CELL_FACH state protocol, wherein the UE is configured to transmit uplink transmissions according to the enhanced uplink in CELL_FACH state protocol. Additionally, the example method may include determining that the configuration information includes invalid configuration information. Moreover, the example method may include performing at least one remedial action to ensure that the UE is able to transmit the uplink transmissions based on determining that the configuration information includes invalid configuration information. | 07-16-2015 |
20150223148 | TECHNIQUES FOR READING SYSTEM INFORMATION IN WIRELESS COMMUNICATIONS - Described herein are various aspects related to determining whether to read system information of a network entity. A user equipment (UE) can receive system information transmitted by a network entity. The UE can analyze one or more parameters of the system information to determine whether system information for the network entity has changed when a value tag broadcasted in the system information is equivalent to a stored value tag for the network entity; thus the UE can utilize more than just the value tag, such as system information size, system information scheduling, a value tag in master information, and/or the like, at least in instance where the value tag may be the same in different transmissions of the system information. The UE can process the system information for the network entity based at least in part on determining that the system information for the network entity has changed. | 08-06-2015 |
20150245348 | APPARATUS AND METHOD FOR HANDLING A MAC ENTITY RESET AND UPLINK MODULATION SCHEME OPERATION - The disclosure provides a method, apparatus, and computer program product directed towards performing a medium access control (MAC) entity reset in a user equipment (UE). A condition associated with a commencement or stoppage of an uplink quadrature amplitude modulation (QAM) scheme is detected within a UE. Here, the condition is a network communication lacking either a modulation scheme configuration information element or a MAC reset indicator. A MAC entity on the UE is then reset in response to a detection of the condition. | 08-27-2015 |
Patent application number | Description | Published |
20140111276 | BOOST CONVERTER CONTROL FOR ENVELOPE TRACKING - Techniques for controlling boost converter operation in an envelope tracking (ET) system. In an aspect, an enable generation block is provided to generate an enable signal for a boost converter, wherein the enable signal is turned on in response to detecting that a sum of a first headroom voltage and an enable peak of a tracking supply voltage is greater than an amplifier supply voltage of the ET system. The enable signal may be turned on for a predetermined enable on duration. In another aspect, a target generation block is provided to generate a target voltage for the boost converter, wherein the target voltage comprises the sum of a second headroom voltage and a target peak of the tracking supply voltage. | 04-24-2014 |
20140197814 | PROGRAMMABLE FREQUENCY RANGE FOR BOOST CONVERTER CLOCKS - Techniques for generating a boost clock signal for a boost converter from a buck converter clock signal, wherein the boost clock signal has a limited frequency range. In an aspect, the boost clock signal has a maximum frequency determined by Vbst/T, wherein Vbst represents the difference between a target output voltage and a battery voltage, and T represents a predetermined cycle duration. The boost converter may include a pulse insertion block to limit the minimum frequency of the boost clock signal, and a dynamic blanking/delay block to limit the maximum frequency of the boost clock signal. Further techniques are disclosed for generally implementing the minimum frequency limiting and maximum frequency limiting blocks. | 07-17-2014 |
20140210559 | DYNAMIC HEADROOM FOR ENVELOPE TRACKING - Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described. | 07-31-2014 |
20140361830 | ENVELOPE TRACKER WITH VARIABLE BOOSTED SUPPLY VOLTAGE - Techniques for efficiently generating a variable boosted supply voltage for an amplifier and/or other circuits are disclosed. In an exemplary design, an apparatus includes an amplifier, a boost converter, and a boost controller. The amplifier receives an envelope signal and a variable boosted supply voltage and provides an output voltage and an output current. The boost converter receives a power supply voltage and at least one signal determined based on the envelope signal and generates the variable boosted supply voltage based on the power supply voltage and the at least one signal. The boost controller generates the at least one signal (e.g., an enable signal and/or a threshold voltage) for the boost converter based on the envelope signal and/or the output voltage. The boost converter is enabled or disabled based on the enable signal and generates the variable boosted supply voltage based on the power supply voltage and the threshold voltage. | 12-11-2014 |