Patent application number | Description | Published |
20090036668 | MICROFLUIDIC RADIOSYNTHESIS SYSTEM FOR POSITRON EMISSION TOMOGRAPHY BIOMARKERS - Methods and devices for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in a fast, efficient and compact manner are disclosed. In particular, the various embodiments of the present invention provide an automated, stand-alone, hands-free operation of the entire radiosynthesis cycle on a microfluidic device with unrestricted gas flow through the reactor, starting with target water and yielding purified PET radiotracer within a period of time shorter than conventional chemistry systems. Accordingly, one aspect of the present invention is related to a microfluidic chip for radiosynthesis of a radiolabeled compound, comprising a reaction chamber, one or more flow channels connected to the reaction chamber, one or more vents connected to said reaction chamber, and one or more integrated valves to effect flow control in and out of said reaction chamber. | 02-05-2009 |
20090308490 | PARTICULATE SUBSTANCE COLLECTOR - The particulate substance collector described herein comprises a conductive material completely or partially encased in one or more types of non-conductive material(s). The collector can be mounted on a particulate substance collection system, which provides the collector with electrostatic charge. The charged collector is used to attract a measurable amount of particulate substances to the collector. The present invention broadens the range of substances that can be collected to include both conductive and non-conductive particulate materials. Previously, with collectors composed solely of a single material, conductive materials could not be collected. The present invention also broadens the type of receptacle that the particulate substance can be held in, to include both conductive and non-conductive receptacles. The present invention further provides the benefit of minimizing electric shock to the operator who inadvertently contacts the collector during operation. | 12-17-2009 |
20100113762 | Apparatus and Method Using Rotary Flow Distribution Mechanisms - Methods and apparatus for facilitating the synthesis of compounds in a batch device are presented. Application of the batch type microfluidic devices to the synthesis of radiolabeled compounds is described. These methods and apparatus enable the selective introduction of multiple reagents via an enhanced rotary flow distribution valve through a single inlet port of the synthetic device. The sequential introduction of multiple reagents through a single inlet port allows an optimal delivery of highly concentrated reagents into the reactor and facilitates the synthesis of the desired products with a minimal loss of materials during transfers, which is critical to the synthesis of radiolabeled biomarkers. | 05-06-2010 |
20100145630 | Apparatus and Method for Automated Quality Control - Methods and apparatus to assess current aspects of Quality Control useful for release of radioactive compounds for imaging, such as PET tracers as injectables, in an automated manner, without user interference, and in compliance with regulatory guidelines. The present method and system relates to an integrated automated quality control analysis of a substance utilizing a single sample injection for a plurality of inline quality control tests. A quantitative analysis of the sample via the plurality of quality control tests is conducted. A measurement value of each of the plurality of quality control parameters is determined and a comparison of each measurement value of the plurality of quality control parameters with a predetermined corresponding criterion value is made. A cumulative quality rating for the sample is determined and the validated sample is released based on the quality rating. | 06-10-2010 |
20110008215 | Modular system for radiosynthesis with multi-run capabilities and reduced risk of radiation exposure - Macro- and microfluidic devices and related technologies, and chemical processes using such devices. More specifically, the devices may be used for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in an efficient, compact and safe to the operator manner. In particular, embodiments of the present invention relate to an automated, multi-run, microfluidic instrument for the multi-step synthesis of radiopharmaceuticals, such as PET probes, comprising a remote shielded mini-cell containing radiation-handing components. | 01-13-2011 |
20110097245 | Portable Microfluidic Radiosynthesis System for Positron Emission Tomography Biomarkers and Program Code - Methods and devices for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in a fast, efficient and compact manner are disclosed. In particular, the various embodiments of the present invention provide an automated, stand-alone, hands-free operation of the entire radiosynthesis cycle on a microfluidic device with unrestricted gas flow through the reactor, starting with target water and yielding purified PET radiotracer within a period of time shorter than conventional chemistry systems. Accordingly, one aspect of the present invention is related to a microfluidic chip for radiosynthesis of a radiolabeled compound, comprising a reaction chamber, one or more flow channels connected to the reaction chamber, one or more vents connected to said reaction chamber, and one or more integrated valves to effect flow control in and out of said reaction chamber. | 04-28-2011 |
20110150714 | Modular System for Radiosynthesis with Multi-Run Capabilities and Reduced Risk of Radiation Exposure - Macro- and microfluidic devices and related technologies, and chemical processes using such devices. More specifically, the devices may be used for a fully automated synthesis of radioactive compounds for imaging, such as by positron emission tomography (PET), in an efficient, compact and safe to the operator manner. In particular, embodiments of the present invention relate to an automated, multi-run, microfluidic instrument for the multi-step synthesis of radiopharmaceuticals, such as PET probes, comprising a remote shielded mini-cell containing radiation-handing components. | 06-23-2011 |
20130294984 | Radiochemical Synthesis Apparatus Using Spatial Temperature Manipulation - A compact and flexible apparatus that may be used to carry out multistep chemical or radiochemical synthesis is disclosed. Radiochemical tracers may be synthesized through a spatial temperature manipulation approach. The reaction vessel and the reagent vials can be removed after a single use, suggesting the apparatus can be used multiple times a day. | 11-07-2013 |
Patent application number | Description | Published |
20110255505 | SYSTEMS AND METHODS FOR BUNDLING RESOURCE BLOCKS IN A WIRELESS COMMUNICATION SYSTEM - A base station for use in a wireless network operable to communicate with a plurality of mobile stations. The base station transmits a downlink frame to a first mobile station. The downlink frame comprises time-frequency resource elements allocated in a plurality of physical resource blocks. The base station transmits the plurality of physical resource blocks in bundles having a bundle size that is a function of the system bandwidth configuration and the base station uses the same precoder for all physical resource blocks in the same bundle. The bundle size is from one physical resource block to three physical resource blocks. | 10-20-2011 |
20110274043 | METHOD AND SYSTEM FOR INDICATING THE TRANSMISSION MODE FOR UPLINK CONTROL INFORMATION - A base station includes a transmit path circuitry to select one of a first UCI multiplexing method that allows a subscriber station to simultaneously transmit PUSCH and PUCCH and a second UCI multiplexing method that does not allow the subscriber station to simultaneously transmit PUSCH and PUCCH. The transmit path circuitry also transmits a higher layer signal indicating the one selected UCI multiplexing method, and transmits one or more uplink grants. Each of the uplink grants schedules a PUSCH in an UL CC for a subframe n, and each of the uplink grants carries a CQI request. The base station also includes a receive path circuitry to receive an aperiodic CSI report on the PUSCH in the uplink component carrier i when only one of the uplink grants scheduling a PUSCH in an uplink component carrier i carries a CQI request having a value from a set of values. | 11-10-2011 |
20110280222 | UPLINK TRANSMISSION APPARATUS AND METHOD FOR MOBILE COMMUNICATION SYSTEM SUPPORTING UPLINK MIMO - A base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station. The uplink grant indicating a first MCS value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry configured to receive a MIMO uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. ACK/NACK information and RI information are repeated on both the first and second subsets of layers, and CQI is spatially multiplexed on either the first subset or the second subset of layers. If the first MCS value is different from the second MCS value, the CQI is spatially multiplexed onto the subset of layers having a higher MCS value. | 11-17-2011 |
20110299484 | METHOD AND SYSTEM FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - A base station includes a transmit path circuitry to transmit an uplink grant in a DCI format to a subscriber station. The base station also includes a receive path circuitry to receive only UCI on a PUSCH from a subscriber station when the uplink grant includes a MCS of an enabled transport block (TB) with a value of 29, or a redundancy version of the PUSCH with a value of 1; a CSI request field with a non-zero value; and a total number of physical resource blocks allocated for the subscriber station, N | 12-08-2011 |
20110310823 | METHOD AND SYSTEM FOR MAPPING HARQ-ACK BITS - A subscriber station is provided. The subscriber station includes a transmit path circuitry to transmit uplink control information (UCI) in a subframe comprising one or more resource blocks, each resource block comprising S SC-FDM symbols. Each of the S symbols comprises N virtual subcarriers, and each subcarrier of each symbol comprises a resource element. The subscriber station also includes a UCI symbol allocator to allocate a first vector sequence of HARQ-ACK bits to a control region of each of four symbols of a resource block, the control region allocated for HARQ-ACK bits. The UCI symbol allocator also allocates a second vector sequence of HARQ-ACK bits to a control region of a fifth symbol of the resource block when a condition is met. The control region of the fifth symbol can be allocated for rank information (RI) bits. | 12-22-2011 |
20120003945 | SYSTEMS AND METHODS FOR 8-TX CODEBOOK AND FEEDBACK SIGNALING IN 3GPP WIRELESS NETWORKS - A mobile station for use in a wireless network. The mobile station is operable to transmit feedback values to a base station of the wireless network. The feedback values include a first precoder matrix indicator (PMI1) value and a second precoder matrix indicator (PMI2) value. The mobile station transmits the PMI2 value to the base station in the same subframe as a channel quality indicator (CQI) value. The CQI value may be either a wideband CQI value or a subband CQI value. | 01-05-2012 |
20120014320 | METHOD AND SYSTEM FOR MULTIPLEXING ACKNOWLEDGEMENT SIGNALS AND SOUNDING REFERENCE SIGNALS - A base station includes a transmit path circuitry that determines a PUCCH format 3 index and transmits an uplink grant to a subscriber station, the uplink grant including an indication of the PUCCH format 3 index. The base station also includes a receive path circuitry that receives a PUCCH format 3 signal in a subframe from the subscriber station. The receive path circuitry also receives a first demodulation reference signal for the PUCCH format signal in the first slot of the subframe, where the first demodulation reference signal is determined based at least partly upon a first demodulation reference signal cyclic shift number. The receive path circuitry also receives a second demodulation reference signal for the PUCCH format 3 signal in the second slot of the subframe, where the second demodulation reference signal is determined based at least partly upon a second demodulation reference signal cyclic shift number. | 01-19-2012 |
20120020288 | SYSTEMS AND METHODS FOR PUCCH FEEDBACK IN 3GPP WIRELESS NETWORKS - A mobile station for use in a wireless network. The mobile station transmits feedback values in a physical uplink control channel (PUCCH) to a base station of the wireless network. The mobile station is operable to transmit to the base station a subband second precoder matrix index (PMI) associated with a particular subband and a subband channel quality indicator (CQI) value associated with the particular subband together in a subframe of the PUCCH. | 01-26-2012 |
20120026972 | APPARATUS AND METHOD FOR SUPPORTING RANGE EXPANSION IN A WIRELESS NETWORK - A wireless network for communicating with a mobile station capable of operating in a range expansion mode. The wireless network comprises a macro-base station (BS) operable to communicate with the mobile station and a micro-base station (BS) in a coverage area associated with the macro-BS. The macro-BS transmits to the micro-BS a first control message indicating a range expansion (RE) capability of the mobile station. In response, the micro-BS transmits to the macro-BS PCFICH information associated with the micro-BS. The macro-BS transmits the PCFICH information to the mobile station and the mobile station uses the PCFICH information to perform a handover procedure to the micro-BS. | 02-02-2012 |
20120039273 | APPARATUS AND METHOD FOR TRANSMISSION OF UPLINK SOUNDING REFERENCE SIGNALS IN A WIRELESS NETWORK - A mobile station for use in a wireless network that operates according to the Long-Term Evolution Advanced (LTE-A) standard. The mobile station is operable to transmit an aperiodic sounding reference signal (SRS) to a base station in response to a triggering grant received from the base station. The bandwidth on which the mobile station transmits the aperiodic SRS depends on a type of the triggering grant. The type of the triggering grant is one of a downlink grant, an uplink multiple-input, multiple-output (MIMO) grant, and an uplink single-input, multiple-output (SIMO) grant. | 02-16-2012 |
20120069917 | SYSTEM AND METHOD FOR PUCCH SUBBAND FEEDBACK SIGNALING IN A WIRELESS NETWORK - A mobile station for use in a wireless network. The mobile station transmits feedback reports to a base station of the wireless network. The feedback reports comprise a first feedback report, a second feedback report and a third feedback report. The first feedback report includes a precoder type indication (PTI) value that indicates at least one of a period of the second feedback report and a period of the third feedback report. The PTI value indicates a ratio of the second feedback report period to the third feedback report period. The PTI value also indicates the selected feedback information contained in the second feedback report and the third feedback report. | 03-22-2012 |
20120083280 | METHODS AND APPARATUS FOR ENABLING INTERFERENCE COORDINATION IN HETEROGENEOUS NETWORKS - For use in a heterogeneous network, a method for enabling interference coordination includes, upon occurrence of a trigger condition, determining, at a first low power node, that the first low power node is approaching a second low power node. The method also includes sending, at the first low power node, an entering message to an evolved Node-B (eNB) that serves the first low power node. The method further includes receiving, at the first low power node, configuration information from the eNB to perform at least one measurement of the second low power node. | 04-05-2012 |
20120108177 | APPARATUS AND METHOD FOR CHANNEL MEASUREMENT IN RADIO LINK MONITORING IN A WIRELESS NETWORK - A subscriber station is configured to perform a channel measurement on a communication channel in restricted sub-frames for DRX and NON-DRX modes. The subscriber station includes a receiver configured to receive signals from a base station. The subscriber station also includes processing circuitry. When the receiver receives higher layer signaling indicating that channel quality measurement is to be performed in restricted sub-frames for measurement (RFSM), the processing circuitry is configured to extend an evaluation period for monitoring a quality of the communication channel. | 05-03-2012 |
20120120888 | APPARATUS AND METHOD FOR PRIMARY UPLINK SHARED CHANNEL HOPPING IN A WIRELESS NETWORK - A wireless communication system includes a base station capable of communicating with a plurality of subscriber stations includes a controller configured to perform a frequency hop within a selected subset of a physical uplink shared channel (PUSCH). The PUSCH includes a plurality of available resource blocks and a plurality of restricted resource blocks. The base station includes a transmit path comprising circuitry configured to transmit control information and data to at least one of the plurality of subscriber stations in a sub-frame. The transmit path is also configured to transmit a plurality of resource blocks in the sub-frame. Further, the transmit path maps a plurality virtual resource blocks (VRB) to a plurality of available physical resource blocks (PRB) within a limited bandwidth of the sub-frame. The sub-frame includes the limited bandwidth and a plurality of restricted resource blocks. | 05-17-2012 |
20120201207 | APPARATUS AND METHOD FOR PERIODIC CHANNEL STATE REPORTING IN A WIRELESS NETWORK - Channel State Information (CSI) is reported by a subscriber station to a base station. The CSI is reported periodically for at least two physical uplink control channels (PUCCH). In case of a collision between a report for a first PUCCH and a report for the second PUCCH, each of the report types is partitioned into one of a number of classes, which include: a first class for rank indicator related report types and wideband (WB) W1 report types; a second class for WB report types or WB channel quality indicator report types; and a third class for subband related report types or W1 report types. A priority rule assigns a priority to each of the classes. The CSI feedback reports are transmitted according to the priority rule such that the report type included in a higher class is transmitted and the report type included in the lower class are dropped. | 08-09-2012 |
20120269140 | DOWNLINK CONTROL SIGNALING FOR COORDINATED MULTIPOINT TRANSMISSION - A base station performs a method for coordinated multipoint (CoMP) transmission to a plurality of user equipments (UEs). The method includes transmitting a first and a second physical downlink control channel (PDCCH) to a user equipment (UE) in a subframe, wherein the first PDCCH has a first downlink control information (DCI) format and the second PDCCH has a second DCI format. The method also includes transmitting a first transport block of at least one CoMP transmission to the UE in the subframe according to the first PDCCH, the at least one CoMP transmission comprising the first transport block from the base station and a second transport block from a second base station, wherein the second transport block is scheduled according to the second PDCCH. | 10-25-2012 |
20120300714 | METHODS AND APPARATUS FOR RANDOM ACCESS PROCEDURES WITH CARRIER AGGREGATION FOR LTE-ADVANCED SYSTEMS - An eNodeB is configured to perform a method for a random access procedure in an LTE-Advanced system. The method includes receiving from a user equipment a random access preamble message on a physical random access channel (PRACH) on a first cell, the PRACH associated with a random access radio network temporary identifier (RA-RNTI). The method also includes transmitting to the user equipment a random access response (RAR) message on a second cell. At least one of the RAR message and the RA-RNTI includes information configured to allow the user equipment to identify a target Timing Advance Group (TAG) or cell associated with the RAR message. | 11-29-2012 |
20130034064 | APPARATUS AND METHOD FOR UE-SPECIFIC DEMODULATION REFERENCE SIGNAL SCRAMBLING - A user equipment (UE) is configured to communicate with a plurality of base stations in a wireless network. The UE includes a processor that receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH). The processor also receives UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value c | 02-07-2013 |
20130044665 | METHODS AND SYSTEMS FOR DYNAMIC SWITCHING, UPLINK POWER CONTROL AND SYNCHRONIZATION IN WIRELESS NETWORKS - Dynamic switching of uplink power control and synchronization in wireless networks involves switching a user equipment (UE) from a transmission point common (TP-common) mode to a transmission point specific (TP-specific) mode in a wireless network. The UE transmits at a high power level in a TP-common mode to compensate for a larger path loss between the UE and the TPs and at a low power level in a TP-specific mode to save battery power based on a smaller path loss between the UE and a specific, nearby TP. | 02-21-2013 |
20130077513 | CoMP MEASUREMENT SYSTEM AND METHOD - According to one embodiment, a subscriber station configured to communicate with one or more base stations in a wireless communication network. The subscriber station is configured to receive, from the network, information associated with one or more of the TPs that are candidates for coordinated multipoint (CoMP) transmission with the subscriber station, measure a plurality of channel quality values for each of the one or more TPs, and report to the network, the measured channel quality values. | 03-28-2013 |
20130077569 | APPARATUS AND METHOD FOR UPLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEMS - An apparatus and method for a User Equipment in a wireless network including at least one Base Station (BS) are provided. The method includes receiving an Information Element (IE) for configuring at least one of a PUSCH power control method and a PUSCH DMRS generation method from the BS, determining a state of the IE, and transmitting a PUSCH and a DMRS for the PUSCH according to the state of the IE. A transmission power of the PUSCH is controlled and a base sequence for the PUSCH DMRS is generated according to the state of the IE. When the state of the IE indicates a first state, the transmission power of the PUSCH is determined according to a first power control equation. When the state of the IE indicates a second state, the transmission power of the PUSCH is determined according to a second power control equation. | 03-28-2013 |
20130083682 | DOWNLINK TIMING REFERENCE FOR COORDINATED MULTIPOINT COMMUNICATION - A method, apparatus and a system are disclosed. A method of operating a user equipment includes receiving one or more signals from one or more transmission points for a coordinated multi-point (CoMP) transmission. The method also includes identifying a timing reference for receiving the coordinated multi-point (CoMP) transmission as a time when a signal is first received from one of the transmission points. | 04-04-2013 |
20130114535 | REFERENCE SIGNAL FOR TIME AND/OR FREQUENCY TRACKING IN A WIRELESS NETWORK - A method and an apparatus in a base station are capable of including a tracking reference signal (TRS) in a downlink subframe. The method includes generating a TRS subframe by including the TRS in the downlink subframe at a frequency density of at least one resource element per six resource elements in the TRS subframe. Additionally, the method includes transmitting the TRS subframe at a periodicity among other subframes not including the TRS. | 05-09-2013 |
20130136098 | APPARATUS AND METHOD FOR MACHINE-TYPE COMMUNICATIONS - A network and user equipment are configured to support machine type communications is provided. The UE includes processing circuitry to process a physical broadcast channel (PBCH) to acquire at least one system information block (SIB). The processing circuitry also processes the at least one SIB to determine a location of a lite SIB (SIB-L). The processing circuitry determines a location of a lite physical downlink control channel (L-PBCCH) from the SIB-L. | 05-30-2013 |
20130182687 | APPARATUS AND METHOD FOR CONTROLLING SECONDARY CELL UPLINK SYNCHRONIZATION STATES - A user equipment (UE) is configured to perform a method for controlling synchronization with a secondary cell (SCell). The method includes receiving a physical downlink control channel (PDCCH) order from an eNodeB associated with an SCell. The method also includes, in response to receiving the PDCCH order, transitioning from a first state where the UE considers the SCell in sync for an uplink transmission to a second state where the UE considers the SCell out of sync for the uplink transmission. | 07-18-2013 |
20130188558 | APPARATUS AND METHOD FOR PILOT SCRAMBLING FOR ENHANCED PHYSICAL DOWNLINK CONTROL CHANNELS - A telecommunications system is configured to perform a method for mapping synchronization signals. The method includes transmitting data, reference signals, synchronization signals and control elements to at least one of the plurality of subscriber stations. The method also includes configuring enhanced physical downlink control channel (e-PDCCH) DMRS parameters for each of a plurality of e-PDCCH sets | 07-25-2013 |
20130201926 | SYSTEM AND METHOD FOR PHYSICAL DOWNLINK CONTROL AND HYBRID-ARQ INDICATOR CHANNELS IN LTE-A SYSTEMS - A subscriber station configured to receive one or more physical resource blocks (PRBs) from a base station, the PRBs comprising an enhanced physical data control channel (ePDCCH) and at least one of an enhanced physical downlink control format indicator channel (ePCFICH), an enhanced physical hybrid-ARQ indicator channel (ePHICH). A number of resource element groups (REGs) for the at least one of the ePCFICH or the ePHICH are mapped onto a first set of REs in each of one or more PRBs according to a mapping pattern. Also, a number of REGs for the ePDCCH are mapped onto a second set of REs in each of the one or more PRBs, wherein the first set of REs and the second set of REs do not have a common RE. | 08-08-2013 |
20130215842 | METHODS AND APPARATUS FOR DOWNLINK CONTROL CHANNELS TRANSMISSIONS IN WIRELESS COMMUNICATIONS SYSTEMS - An antenna port for an extended Physical Downlink Control CHannel (ePDCCH) transmission is determined based on at least an identifier for a leading extended Control Channel Element (eCCE) within the ePDCCH and an identifier for a user equipment (UE) to receive the ePDCCH transmission, and based on whether the ePDCCH transmission is localized or distributed. The determined antenna port is a DeModulation Reference Signal (DMRS) port to which the UE is assigned. Symbols are mapped in sequence to resource elements (REs) and transmitted via the determined antenna port to the UE. | 08-22-2013 |
20130229953 | APPARATUS AND METHOD FOR INDICATING SYNCHRONIZATION SIGNALS IN A WIRELESS NETWORK - A base station in a heterogeneous network is configured to communicate with a plurality of base stations via a backhaul link and configured to communicate with a plurality of subscriber stations. The base station includes a transmit path configured to transmit data, reference signals, synchronization signals and control elements to at least one of the plurality of subscriber stations. The base station also includes processing circuitry configured to map primary synchronization signals (PSS) and secondary synchronization signals (SSS) onto each of a carrier of a first carrier type and a carrier of a second carrier type. The PSS and SSS on the second carrier type are mapped onto different time locations than in the first carrier type. In addition, the PSS/SSS are mapped onto consecutive resource elements (REs) on each of the carrier of the first type and the carrier of the second type. | 09-05-2013 |
20130230004 | METHOD AND SYSTEM FOR INDICATING THE TRANSMISSION MODE FOR UPLINK CONTROL INFORMATION - A base station includes a transmit path circuitry to select one of a first UCI multiplexing method that allows a subscriber station to simultaneously transmit PUSCH and PUCCH and a second UCI multiplexing method that does not allow the subscriber station to simultaneously transmit PUSCH and PUCCH. The transmit path circuitry also transmits a higher layer signal indicating the one selected UCI multiplexing method, and transmits one or more uplink grants. Each of the uplink grants schedules a PUSCH in an UL CC for a subframe n, and each of the uplink grants carries a CQI request. The base station also includes a receive path circuitry to receive an aperiodic CSI report on the PUSCH in the uplink component carrier i when only one of the uplink grants scheduling a PUSCH in an uplink component carrier i carries a CQI request having a value from a set of values. | 09-05-2013 |
20130250879 | METHOD AND APPARATUS FOR TRANSMISSION MODE DESIGN FOR EXTENSION CARRIER OF LTE ADVANCED - A system and method includes transmission mode design for Extension Carrier of LTE-Advanced. The system includes a base station capable of communicating with subscriber stations using an extension carrier. The extension carrier is not backwards compatible and does not transmit any LTE Release 8-10 cell-specific reference signals (CRS) or Physical Downlink Control Channel. The system including transmission mode design for Extension Carrier of LTE-Advanced uses a basic demodulation reference signal transmission scheme (Basic DM-RS TS) when the PDSCH transmission uses DCI format 1A. Basic DM-RS TS uses DM-RS ports and does not uses CRS ports. | 09-26-2013 |
20130265899 | DETERMINATION OF CHANNEL QUALITY INFORMATION IN ADVANCED ANTENNA SYSTEMS - A user equipment (UE) is configured to determine channel quality information (CQI) in a wireless communication system. The UE includes a processor configured to receive from an eNodeB (eNB) signaling parameters related to a first co-channel precoding matrix indicator (PMI) codebook, determine a second co-channel PMI based on a determined single user PMI (SU-PMI) and the received signaling parameters related to the first co-channel PMI codebook, determine a multi-user CQI (MU-CQI) based on the second co-channel PMI, and transmit the MU-CQI to the eNB. | 10-10-2013 |
20130265951 | HIGH-ORDER MULTIPLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT OPERATION FOR WIRELESS COMMUNICATION SYSTEMS - Methods and apparatuses schedule resources and identify resource scheduling in a MU MIMO wireless communication system. A method for identifying resource scheduling for a UE includes receiving downlink control information; identifying, from the downlink control information, one or more DM-RS ports assigned to the UE and a PDSCH EPRE to DM-RS EPRE ratio; and identifying data intended for the UE in a resource block in a downlink subframe using the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio. A method for scheduling resources includes identifying one or more DM-RS ports to assign to a UE and a PDSCH EPRE to DM-RS EPRE ratio for identifying data intended for the UE in a resource block in a downlink subframe; and including an indication of the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio in downlink control information. | 10-10-2013 |
20130279437 | QUASI CO-LOCATION IDENTIFICATION OF REFERENCE SYMBOL PORTS FOR COORDINATED MULTI-POINT COMMUNICATION SYSTEMS - Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port. | 10-24-2013 |
20130301554 | METHOD AND SYSTEM OF MULTI-LAYER BEAMFORMING - A base station includes a reference signal sequence generator configured to generate a reference signal sequence for a reference signal for each of n antenna ports using one initialization seed c | 11-14-2013 |
20130303230 | METHOD AND APPARATUS FOR AGGREGATED CQI FOR COORDINATED MULTIPOINT TRANSMISSION - In a Coordinated Multipoint (CoMP) wireless network comprising a plurality of transmission points (TPs), a user equipment (UE) performs a method of determining aggregated channel quality information (CQI). The method includes receiving signals corresponding to a joint transmission from the plurality of TPs in the CoMP network. The method also includes making an assumption about a transmission scheme of the joint transmission from the TPs. The method further includes determining aggregated CQI corresponding to the joint transmission based on the assumption about the transmission scheme. The method still further includes transmitting the aggregated CQI to the network. | 11-14-2013 |
20130336214 | APERIODIC AND PERIODIC CSI FEEDBACK MODES FOR COORDINATED MULTI-POINT TRANSMISSION - Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions. | 12-19-2013 |
20130336242 | APPARATUS AND METHODS FOR FLEXIBLE RF CONFIGURATOIN IN MULTI-ANTENNA WIRELESS SYSTEMS - An apparatus includes a baseband signal processing block, processing circuitry, and at least one radio frequency (RF) communication module communicably coupled to the baseband signal processing block and configured to communicate using a selected mode of communication in a channel. The processing circuitry is configured to detect a sub-channel band of unavailable spectrum within the channel, the band of unavailable spectrum being less than a whole of the channel. The channel includes one contiguous band of frequencies divisible into at least two non-overlapping non-adjacent sub-channels. The processing circuitry is configured to select one mode of communication selected from a plurality of modes including: a carrier aggregation (CA) only mode, a multiple input multiple output (MIMO) only mode, and a carrier aggregation multiple input multiple output (CA-MIMO) hybrid mode. | 12-19-2013 |
20140010181 | METHODS AND APPARATUS FOR DOWNLINK PDSCH POWER SETTING - Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, η | 01-09-2014 |
20140018012 | PHYSICAL BROADCAST CHANNEL (PBCH) TRANSMISSION FOR RELIABLE DETECTION OF ANTENNA CONFIGURATION - Reliable detection of the configuration of transmit antennas includes obtaining a data for transmission, encoding the data, and modulating the data. During the modulating of the data, the data may be configured in such a way as to convey the configuration of the antennas through the modulation of the data. An antenna configuration is obtained by obtaining a representation of the antenna configuration, and masking the data with an error correcting code, where the mask corresponds to the antenna configuration. | 01-16-2014 |
20140086174 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION - A method for CSI report transmission includes detecting a collision in a subframe, between a first PUCCH CSI report of one serving cell with which a UE is configured in one of transmission modes 1 to 9, and a second PUCCH CSI report of another serving cell with which the UE is configured in transmission mode 10. Upon the reporting types of the collided PUCCH CSI reports having a same priority, the method transmits the first PUCCH CSI report if the CSI process index of the second PUCCH CSI report has a positive value other than 1. A method for CSI report transmission includes configuring, via a higher layer, a UE configured in transmission mode 10 whether to create a respective CSI report(s) for each aperiodic CSI process or not, using an information element including at least three one-bit variables. | 03-27-2014 |
20140133395 | METHODS AND APPARATUS FOR IDENTIFICATION OF SMALL CELLS - Orthogonal multi-user, multiple input, multiple output (MU-MIMO) multiplexing capacity for demodulation reference signals (DMRSs) is increased without increasing the overhead in resource elements per physical resource block by using length-4 orthogonal cover codes (OCC-4). A base station switches between legacy DMRS antenna port mappings and OCC-4 mapping based upon either a transmission mode or a channel station information process configuration field value. | 05-15-2014 |
20140161071 | CONTROL DESIGN FOR BACKHAUL RELAY TO SUPPORT MULTIPLE HARQ PROCESSES - A wireless communication network includes a base station and a relay station. The relay station is configured to relay communications between the base station and at least one subscriber station. The base station is configured to communicate with the subscriber station via the relay station. The base station further is configured to transmit, in a subframe, a plurality of transport blocks for a plurality of Hybrid Automatic Repeat Request (HARQ) processes to the relay station. Each transport block corresponds to a different HARQ process. | 06-12-2014 |
20140169311 | METHOD AND SYSTEM FOR MAPPING UPLINK CONTROL INFORMATION - A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding scheme (MCS) value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry to receive a multiple-input multiple-output (MIMO) uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. Acknowledgement/negative acknowledgement (ACK/NACK) information and rank indication (RI) information are mapped onto both the first subset of layers and the second subset of layers. Channel quality information (CQI) is only mapped onto either the first subset of layers or the second subset of layers. | 06-19-2014 |
20140192738 | UPLINK CONTROL INFORMATION TRANSMISSIONS/RECEPTIONS IN WIRELESS NETWORKS - A method and apparatus provide a user equipment (UE) configured to communicate with a plurality of carrier aggregation (CA) groups with at least a first CA group (CG1) and a second CA group (CG2). The UE includes processing circuitry. The processing circuitry is configured to determine whether the UE is power-limited. The UE is scheduled to transmit acknowledged information in a physical uplink shared channel (PUSCH) to a cell of the CG1 and uplink control information (UCI), other than the acknowledgement information, in a physical uplink control channel (PUCCH) to a cell of the CG2. The processing circuitry is also configured to, responsive to the UE being power-limited, prioritize the PUSCH for power allocation. The processing circuitry is also configured to transmit the PUSCH to the cell of the CG1. | 07-10-2014 |
20140192775 | METHODS AND APPARATUS FOR INTER-ENB CARRIER AGGREGATION - A method and apparatus for connecting to a secondary enhanced NodeB. A transceiver configured to receive a Radio Resource Control (RRC) message from a Master enhanced NodeB (MeNB). The RRC message comprises a dedicated random access resources configuration for the UE to perform random access to a cell associated with a Secondary enhanced NodeB (SeNB) for a purpose of an addition of the SeNB, and an identification of the cell to which the random access is to be performed. Responsive to receiving the RRC message, command the Media Access Control (MAC) to trigger the random access for the addition of the SeNB to the cell with the identification indicated in the RRC message with the random access resources indicated in the RRC message. The MeNB is an eNB which the UE connects to initially and which acts as mobility anchor. | 07-10-2014 |
20140241150 | METHODS AND APPARATUS FOR DEMODULATION REFERENCE SIGNALS AND SYNCHRONIZATION SIGNALS IN EXTENSION CARRIER OF LTE ADVANCED - A telecommunications system is configured to perform a method for mapping synchronization signals. The method includes transmitting data, reference signals, synchronization signals and control elements to at least one of the plurality of subscriber stations. The method also includes configuring DMRS parameters to avoid a collision between the DMRS and at least one of the synchronization signals in a middle 6 resource blocks (RBs) of a system bandwidth. | 08-28-2014 |
20140269451 | TRANSMISSION OF SOUNDING REFERENCE SIGNALS FOR ADAPTIVELY CONFIGURED TDD COMMUNICATION SYSTEMS - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling transmission of a Sounding Reference Signal (SRS) from the UE to the base station and a process for the base station to determine parameters for a DL transmission to the UE are provided. | 09-18-2014 |
20140269460 | CHANNEL STATE INFORMATION FOR ADAPTIVELY CONFIGURED TDD COMMUNICATION SYSTEMS - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling the base station to configure a UE with resources for obtaining channel and interference measurements in two sets of Transmission Time Intervals (TTIs) and a process for the UE to obtain a Channel State Information (CSI) from the channel and interference measurements in the two sets of TTIs are provided. | 09-18-2014 |
20140301492 | PRECODING MATRIX CODEBOOK DESIGN FOR ADVANCED WIRELESS COMMUNICATIONS SYSTEMS - Methods and apparatus of constructing rank-1 and/or rank-2 codebooks for advanced communication systems with 4 transmit antennas and two-dimensional (2D) M×N transmit antenna elements are provided. A double-codebook structure is considered for 4-Tx antenna configuration. Single-codebook and double-codebook structures are considered for two-dimensional (2D) M×N transmit antenna elements. | 10-09-2014 |
20140321306 | SYSTEMS AND METHODS FOR TRANSMITTING CHANNEL QUALITY INFORMATION IN WIRELESS COMMUNICATION SYSTEMS - A base station for use in a wireless network capable of communicating with a plurality of mobile stations. The base station transmits to a first mobile station downlink subframes of OFDM symbols. Each downlink subframe comprises a plurality of resource blocks and is associated with a subframe (SF) type that is determined according to whether or not a PDSCH region of a resource block in a downlink subframe includes at least one of: 1) a cell-specific reference signal (CRS) resource element and 2) a channel-state-information reference signal (CSI-RS) resource element. The base station receives from the first mobile station at least one of CQI, PMI, modulation scheme, and transport block size and interprets the received at least one of CQI, PMI, modulation scheme, and transport block size according to a default SF type used by the first mobile station to determine the at least one of CQI, PMI, modulation scheme, and transport block size. | 10-30-2014 |
20140334565 | METHOD AND APPARATUS FOR MINIATURIZATION OF MIMO SYSTEMS VIA TIGHTLY COUPLED ANTENNA ARRAY - In a Multiple Input Multiple Output (MIMO) system, an apparatus and method includes a Tightly Coupled Array antennas (TCA) or Current Sheet Antennas (CSA). Far-field radiation patterns from any current sheet antenna are formed from the combination of the fields generated by a set of currents on the CSA of array port orthogonal modes, such as the Characteristic Modes (CM). The CM currents are generated by excitation of the CSA element ports with corresponding orthogonal voltages or currents (eigenvectors). Since the radiation patterns of the characteristic modes are orthogonal and uncorrelated, multiple signals may be propagated along the radiation patterns of the characteristic modes, each signal using a different characteristic mode or a different set of characteristic modes. Therefore, a CSA antenna utilizing array port orthogonal modes such as array port characteristic modes can support MIMO communications despite the strong mutual coupling among the antenna elements. | 11-13-2014 |
20140348084 | MULTI-LAYER BEAMFORMING METHODS IN WIRELESS COMMUNICATION SYSTEMS - A base station includes a reference signal allocator that allocates a first layer of dedicated reference signals and a second layer of reference signals to the same resource elements in a first resource block. The reference signals are allocated to two adjacent resource elements corresponding to a first OFDM symbol and a second OFDM symbol on a first, second, and third subcarriers of the first resource block. The base station also includes a reference signal multiplexer that multiplexes the first layer with the second layer. A first cover code W1 is applied to the first layer. A second cover code W2, different from the first cover code, is applied to the second layer in a first and third subcarriers, and a variation of the second cover code W2′ is applied to the second layer in a second subcarrier. | 11-27-2014 |
20140349697 | PHYSICAL BROADCAST CHANNEL (PBCH) TRANSMISSION FOR RELIABLE DETECTION OF ANTENNA CONFIGURATION - Reliable detection of the configuration of transmit antennas includes obtaining a data for transmission, encoding the data, and modulating the data. During the modulating of the data, the data may be configured in such a way as to convey the configuration of the antennas through the modulation of the data. An antenna configuration is obtained by obtaining a representation of the antenna configuration, and masking the data with an error correcting code, where the mask corresponds to the antenna configuration. | 11-27-2014 |
20150055623 | MOBILE SOFTWARE DEFINED NETWORKING (MobiSDN) - A method and apparatus for managing data in a software defined network. The apparatus is configured to receive control information related to a source node and a target node from a plurality of network devices in the software defined network. The apparatus is also configured to identify a route for data forwarding between the source node and the target node based on the control information. The apparatus is also configured to request data forwarding to the plurality of network devices according to the route. The source node or the target node can be at least one of a user equipment (UE), and a cellsite node including at least a base station. | 02-26-2015 |
20150085795 | SYSTEM AND METHOD FOR RESOURCE MAPPING FOR COVERAGE ENHANCEMENTS OF BROADCAST CHANNELS - Methods and apparatus are provided for a base station to transmit repetitions of broadcast information and for a UE to detect the broadcast information. In a first method, the base station maps each repetition in a respective quadruple of subframe symbols while accounting for a possible different number of available sub-carriers among quadruplets of subframe symbols. In a second method, the base station maps the repetitions successively in available sub-carriers. For intermittent transmissions of repetitions, the UE can use the mapping structure of the repeated broadcast information to determine an existence of a transmission. | 03-26-2015 |