Patent application number | Description | Published |
20110310811 | CONTROLLING POWER FOR CONTENTION BASED UPLINK TRANSMISSIONS - A wireless communication device configured for controlling power for contention based uplink transmissions is described. The wireless communication device includes a processor and instructions stored in memory. The wireless communication device receives one or more power control parameters and performs contention based power control for uplink transmissions. The contention based power control is different from dynamic scheduled grant power control. The wireless communication device sends a contention based uplink transmission. | 12-22-2011 |
20110310853 | SELECTING A CODEWORD AND DETERMINING A SYMBOL LENGTH FOR UPLINK CONTROL INFORMATION - A wireless communication device configured for selecting a codeword and determining a symbol length for uplink control information is described. The wireless communication device includes a processor and instructions stored in memory. The wireless communication device establishes communication with a base station, receives downlink control information from the base station and receives base station information. The wireless communication device generates uplink control information based on the base station information. The wireless communication device also determines a number of symbols for the uplink control information for a plurality of layers and sends the uplink control information. | 12-22-2011 |
20110312332 | REDUCING FEEDBACK OVERHEAD FOR MULTIPLE COMPONENT CARRIERS - A wireless communication device configured for reducing feedback overhead for multiple component carriers is described. The wireless communication device includes a processor and instructions stored in memory. The wireless communication device receives signals on a plurality of component carriers and determines at least one feedback value based on the signals. The wireless communication device also generates at least one reduced overhead feedback message for the plurality of component carriers based on the at least one feedback value and sends the at least one reduced overhead feedback message. | 12-22-2011 |
20120039171 | REDUCING CONGESTION IN WIRELESS COMMUNICATION NETWORKS - A method for controlling network congestion is disclosed. A potential overload of the network is detected. An access class for which to change overload control information is selected. The overload control information is adjusted for the selected access class. The adjusted overload control information is then transmitted. The method may be performed by a base station. | 02-16-2012 |
20120082157 | UPLINK CONTROL INFORMATION MULTIPLEXING ON THE PHYSICAL UPLINK CONTROL CHANNEL FOR LTE-A - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. It is determined whether a collision between a hybrid automatic repeat request acknowledgement (HARQ-ACK) and a channel quality indicator/precoding matrix index/rank indication (CQI/PMI/RI) is detected. It is also determined whether a simultaneousAckNackAndCQI parameter provided by higher layers is set to TRUE. The UCI is generated with the HARQ-ACK using physical uplink control channel (PUCCH) Format 3. | 04-05-2012 |
20120087254 | UPLINK CONTROL INFORMATION TRANSMISSION ON BACKWARD COMPATIBLE PUCCH FORMATS WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A number of bits for a channel quality indicator and/or a precoding matrix index and/or a rank indication (CQI/PMI/RI) is obtained. A number of component carriers with hybrid automatic repeat request acknowledgement (HARQ-ACK) reporting is also obtained. A total number of HARQ-ACK bits is further obtained. A number of HARQ-ACK bits that can be carried on the physical uplink control channel (PUCCH) is determined. Bundling is performed on the total number of HARQ-ACK bits to be reported to fit the total number of HARQ-ACK bits to be reported into the number of HARQ-ACK bits that can be carried on the PUCH. A backward compatible PUCCH format is used to simultaneously carry the CQI/PMI/RI bits and the HARQ-ACK bits. | 04-12-2012 |
20120088533 | RESOURCE ALLOCATION AND ENCODING FOR CHANNEL QUALITY INDICATOR (CQI) AND CQI COLLIDED WITH UPLINK ACKNOWLEDGMENT/NEGATIVE ACKNOWLEDGMENT - A User Equipment (UE) configured for allocating resources and encoding for Channel Quality Indicator (CQI) is described. The UE includes a processor and instructions stored in memory. The UE receives Radio Resource Control (RRC) signaling, receives a reference signal and determines a Channel Quality Indicator (CQI) based on the reference signal. The UE also determines a format for CQI transmission. If use of Format 3 is determined the UE determines cells for CQI reporting based on the RRC signaling and determines an encoding. The UE also encodes a feedback message based on the encoding and transmits the feedback message. | 04-12-2012 |
20120113827 | DYNAMIC SIMULTANEOUS PUCCH AND PUSCH SWITCHING FOR LTE-A - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A set of physical downlink control channel (PDCCH) candidates on an activated serving cell are monitored. A PDCCH of a serving cell intended for the UE in a subframe is detected. A physical downlink shared channel (PDSCH) corresponding to the PDCCH in the same subframe is decoded. Transmission of the UCI for a subframe corresponding to the subframe in which the PDCCH was decoded is adjusted. | 05-10-2012 |
20120120817 | CONFIGURING UPLINK CONTROL INFORMATION (UCI) REPORTING - A method for reporting uplink control information (UCI) by a user equipment (UE) is described. Downlink channels are measured to obtain channel state information (CSI). Radio resource control (RRC) signaling is received from an eNode B. It is determined whether simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is enabled. One or more CSI reports are transmitted on the PUSCH according to the RRC signaling. | 05-17-2012 |
20120127869 | MULTIPLE CHANNEL STATE INFORMATION (CSI) REPORTING ON THE PHYSICAL UPLINK SHARED CHANNEL (PUSCH) WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) by a user equipment (UE) is described. It is determined that multiple channel state information (CSI) reports are scheduled on a physical uplink shared channel (PUSCH). An aggregated CSI report is generated using two or more of the multiple CSI reports. The aggregated CSI report is transmitted on the PUSCH. | 05-24-2012 |
20120140649 | PRIORITIZING MULTIPLE CHANNEL STATE INFORMATION (CSI) REPORTING WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. Multiple channel state information (CSI) reports are generated for multiple component carriers (CCs) that are scheduled to be transmitted in a subframe. A method of prioritization for the CSI reports is selected. A highest priority CSI report of the multiple CSI reports is determined using the selected method of prioritization. The highest priority CSI report is transmitted. | 06-07-2012 |
20120140708 | PRIORITIZING MULTIPLE CHANNEL STATE INFORMATION (CSI) REPORTING WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A collision of multiple channel state information (CSI) reports corresponding to multiple component carriers (CCs) that are scheduled to be reported in the same subframe is detected. A highest priority CSI report of the multiple CSI reports is determined using a prioritization scheme. The highest priority CSI report is transmitted. | 06-07-2012 |
20120210187 | DUAL REED-MULLER (RM) CODE SEGMENTATION FOR UPLINK CONTROL INFORMATION (UCI) - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. It is determined a number of bits in a sequence of bits for transmission is greater than 11 and less than or equal to 21. The sequence of bits for transmission is segmented into a first segment and a second segment using a floor function. The first segment is encoded using a first Reed-Muller encoder. The second segment is encoded using a second Reed-Muller encoder. | 08-16-2012 |
20120257513 | DEVICES FOR MULTI-GROUP COMMUNICATIONS - A User Equipment (UE) configured for multi-group communications is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE detects a plurality of cells. The UE also determines to use multiple groups of one or more cells. The UE further determines a primary secondary cell (PSCell) for a non-primary cell (non-PCell) group based on UE-specific radio resource control (RRC) signaling. The UE additionally receives information using the multiple groups. | 10-11-2012 |
20120275362 | DEVICES FOR INTERFERENCE CONTROL SIGNALING - A wireless communication device configured for interference control signaling is described. The wireless communication device includes a processor and instructions stored in memory that is in electronic communication with the processor. The wireless communication device mitigates interference between a User Equipment (UE) included in the wireless communication device and another communication device included in the wireless communication device based on interference control signaling. | 11-01-2012 |
20120282875 | DISABLING TRANSCEIVERS WHILE SERVICING EMERGENCY MESSAGES - A method for servicing emergency messages by a user equipment (UE) is described. High priority communication (HPC) activity is detected on a Long Term Evolution (LTE) transceiver. Adjustments to be made to one or more transceivers to account for the HPC activity are determined. Settings of the one or more transceivers are adjusted to account for the HPC activity. An end of the HPC activity on the LTE transceiver is detected. The settings of the one or more transceivers are adjusted to account for the end of the HPC activity. | 11-08-2012 |
20120314590 | ENHANCED PRECODING FEEDBACK FOR MULTIPLE-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (MIMO) - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A first precoding matrix indicator (PMI) corresponding to a multiple-user multiple-input and multiple-output (MU-MIMO) downlink transmission is generated using a first codebook set. A second PMI corresponding to the MU-MIMO downlink transmission is generated using a second codebook set. The first PMI and the second PMI are sent to an eNode B in a channel state information (CSI) report. | 12-13-2012 |
20130028198 | DEVICES FOR MULTI-CELL COMMUNICATIONS - A User Equipment (UE) configured for multi-cell communications is disclosed. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) with a corresponding PCell time alignment timer. The UE also determines a secondary cell (SCell) with a corresponding SCell time alignment timer. The UE further determines whether the PCell time alignment timer is expired. The UE additionally sets the SCell time alignment timer as expired if the PCell time alignment timer is expired. | 01-31-2013 |
20130039193 | DEVICES FOR CONVERTING A DOWNLINK SUBFRAME - An evolved Node B (eNB) configured for converting a downlink subframe is disclosed. The eNB includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The eNB determines whether to convert a target downlink subframe to a special subframe type 2. The eNB also transmits physical (PHY) layer signaling indicating a subframe conversion for the target downlink subframe if it is determined to convert the target downlink subframe to the special subframe type 2. | 02-14-2013 |
20130040578 | SIGNALING POWER ALLOCATION PARAMETERS FOR UPLINK COORDINATED MULTIPOINT (COMP) - A method for obtaining multiple path loss parameters by a user equipment (UE) is described. A radio resource control (RRC) signaling message is received from a serving eNode B. A first transmit power corresponding to a first reference signal is obtained from the RRC signaling message. A second transmit power corresponding to a second reference signal is obtained from the RRC signaling message. A first path loss parameter is calculated using the first transmit power. A second path loss parameter is calculated using the second transmit power. | 02-14-2013 |
20130051288 | USER EQUIPMENT CAPABILITY SIGNALING - A user equipment (UE) configured for signaling UE capability is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE sends an indicator regarding whether the UE can support different time division duplex (TDD) configurations on different bands for a band combination. The UE also sends an indicator regarding whether the UE can support concurrent transmission and reception on different bands for the band combination. The UE additionally sends an indicator regarding whether the UE can support different uplink timing adjustments for the band combination. | 02-28-2013 |
20130083675 | DEVICES FOR RADIO LINK MONITORING - A user equipment (UE) configured for radio link monitoring is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE monitors a radio link quality for a secondary cell (SCell). The UE also determines whether a physical layer problem is detected based on the radio link quality. If a physical layer problem is detected, the UE stops a time alignment timer (TAT) of the SCell or sets the time alignment timer (TAT) of the SCell as expired. | 04-04-2013 |
20130083736 | DEVICES FOR RECONFIGURING A SUBFRAME ALLOCATION - An evolved Node B (eNB) for reconfiguring a subframe allocation is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB determines whether to adjust a subframe allocation. If it is determined to adjust the subframe allocation, then the eNB determines whether to adjust the subframe allocation with a radio resource control (RRC) reconfiguration or a physical (PHY) layer reconfiguration. The eNB also adjusts the subframe allocation for the PHY layer reconfiguration. The eNB further adjusts the subframe allocation according to a standard configuration for the RRC reconfiguration. | 04-04-2013 |
20130083739 | DEVICES FOR RANDOM ACCESS RESPONSE SCHEDULING - An evolved Node B (eNB) configured for random access response scheduling is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB sends a message to initiate a random access procedure for a secondary cell (SCell). The eNB also receives a physical random access channel (PRACH) preamble. The eNB further sends a radio network temporary identifier (RNTI) for a random access response (RAR) in a physical downlink control channel (PDCCH) in a user equipment (UE) specific search space. The eNB additionally sends the RAR in a physical downlink shared channel (PDSCH). | 04-04-2013 |
20130114583 | IN-DEVICE COEXISTENCE INTERFERENCE AVOIDANCE (IDC) - A method for in-device coexistence interference avoidance (IDC) is described. An IDC assistance information message is received from a wireless communication device. Long Term Evolution (LTE) uplink inactivity periods for the wireless communication device are aligned with Wi-Fi beacon periods. An IDC configuration message is generated. The IDC configuration message is sent to the wireless communication device. | 05-09-2013 |
20130155898 | DEVICES FOR REPORTING UPLINK INFORMATION - A user equipment (UE) for reporting information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE selects a reference cell having a reference uplink-downlink (UL-DL) configuration. The UE also selects a first uplink subframe from the reference cell. The UE further selects a first subframe set from a first cell having a first UL-DL configuration. The first UL-DL configuration is different than the reference UL-DL configuration. The UE additionally determines a first set of associations between the first subframe set and the first uplink subframe. The UE further aggregates information corresponding to the reference cell and information corresponding to the first cell based on the first set of associations to produce aggregated information. The UE also reports the aggregated information on an uplink reporting cell. | 06-20-2013 |
20130194980 | DEVICES FOR RECONFIGURING UPLINK AND DOWNLINK ALLOCATIONS - A User Equipment (UE) for reconfiguring uplink and downlink (UL-DL) allocations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines whether at least one subframe is convertible over a default Time Domain Duplexing (TDD) UL-DL configuration. If at least one subframe is convertible, then the UE determines a first reference UL-DL configuration and a second reference UL-DL configuration. The UE also sends any hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to a Physical Downlink Shared Channel (PDSCH) based on the first reference configuration. The UE further determines a Physical Uplink Shared Channel (PUSCH) schedule based on the second reference UL-DL configuration. The UE additionally receives any hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to a Physical Uplink Shared Channel (PUSCH) based on the second reference UL-DL configuration. | 08-01-2013 |
20130195067 | DEVICES FOR SIGNALING AN ENHANCED PHYSICAL CONTROL FORMAT INDICATOR CHANNEL - An evolved Node B (eNB) for indicating a control format is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB generates a first enhanced Control Format Indicator (eCFI) corresponding to a first enhanced Physical Control Format Indicator Channel (ePCFICH). The first eCFI at least partially indicates a first enhanced Physical Downlink Control Channel (ePDCCH) region. The eNB also loads the first eCFI into a first set of resource elements in a first slot. The eNB additionally sends the first eCFI in the first slot in a first subframe. | 08-01-2013 |
20130223356 | ALLOCATING AND DETERMINING RESOURCES FOR A DEVICE-TO-DEVICE LINK - An evolved Node B (eNB) for allocating resources for a device-to-device (D2D) link between User Equipments (UEs) is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB allocates resources for a D2D link by using at least one Physical Downlink Control Channel (PDCCH). The eNB further indicates a D2D link direction. | 08-29-2013 |
20130242799 | DEVICES FOR SENDING AND RECEIVING HYBRID AUTOMATIC REPEAT REQUEST INFORMATION FOR CARRIER AGGREGATION - A User Equipment (UE) for sending Hybrid Automatic Repeat Request (HARQ) information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) configuration. The UE also determines a secondary cell (SCell) configuration. The UE further determines whether the PCell configuration specifies uplink (UL) and the SCell configuration specifies downlink (DL) for a subframe or whether the PCell configuration specifies DL and the SCell configuration specifies DL for the subframe. The UE additionally determines a HARQ Acknowledgement (HARQ-ACK) reporting subframe based on the PCell configuration if the PCell configuration specifies DL and the SCell configuration specifies DL for the subframe. The UE also sends SCell Physical Downlink Shared Channel (PDSCH) HARQ-ACK information in the HARQ-ACK reporting subframe. | 09-19-2013 |
20130258874 | COLLISION RESOLUTION AMONG TRANSMISSION SCHEDULES OF UPLINK CONTROL INFORMATION (UCI) - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. Multiple channel state information (CSI) reports are generated for multiple channel state information reference signals (CSI-RS) received on a serving cell. The multiple CSI-RS reports are scheduled to be transmitted in a subframe. An overall highest priority CSI report is determined using a method of prioritization. The overall highest priority CSI report is selected. The overall highest priority CSI report is transmitted. | 10-03-2013 |
20130258954 | DEVICES FOR SELECTING A CHANNEL STATE INFORMATION REPORT - A User Equipment (UE) for selecting a Channel State Information (CSI) report is described. The UE includes a processor and memory in electronic communication with the processor. Executable instructions are stored in the memory. The UE generates multiple CSI reports corresponding to at least one serving cell. A group of one or more CSI reports with a same association forms a CSI report set. The UE applies a first prioritization rule to select a single CSI report for each CSI report set and drops at least one first prioritization unselected CSI report if there is an intra-set transmission scheduling collision. The UE also applies a second prioritization rule to select at least one CSI report if there is an inter-set transmission scheduling collision. | 10-03-2013 |
20130258973 | COLLISION RESOLUTION AMONG TRANSMISSION SCHEDULES OF UPLINK CONTROL INFORMATION (UCI) USING CHANNEL STATE INFORMATION (CSI) PROCESS - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A channel state information (CSI) process index is set to a value received in a CSI process configuration for each serving cell if a message the UE received includes the CSI process configuration for the serving cell. A CSI process index is set to a default value if a message the UE received does not include a CSI process configuration for the serving cell. | 10-03-2013 |
20130260741 | COORDINATED MULTIPOINT (COMP) RADIO RESOURCE MANAGEMENT (RRM) MEASUREMENT - A method for measurement reporting is described. A measurement configuration is received from an evolved NodeB (eNB). The measurement configuration includes a single measurement object in a carrier frequency. A measurement report for a channel state information reference signal (CSI-RS) is generated based on the measurement configuration. The measurement report is sent to the eNB. | 10-03-2013 |
20130301433 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - A User Equipment (UE) for sending feedback information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) configuration. The UE also determines a secondary cell (SCell) configuration. The SCell configuration is different from the PCell configuration. The UE further determines a feedback parameter M | 11-14-2013 |
20130308550 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - A User Equipment (UE) for sending feedback information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) feedback parameter corresponding to a PCell. The UE also determines a secondary cell (SCell) feedback parameter corresponding to an SCell. The SCell feedback parameter is different from the PCell feedback parameter. The UE further performs Physical Uplink Control Channel (PUCCH) Format 1b channel selection based on the PCell feedback parameter and the SCell feedback parameter. The UE additionally sends Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the channel selection. | 11-21-2013 |
20130336160 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - A method for sending feedback information by a User Equipment (UE) is described. The method includes determining uplink-downlink (UL-DL) configurations for multiple cells. At least two of the multiple cells have different uplink-downlink (UL-DL) configurations. The method also includes determining first feedback factors for the multiple cells based on a second feedback factor. The method further includes sending Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information on a Physical Uplink Shared Channel (PUSCH) based on the first feedback factors for the multiple cells. | 12-19-2013 |
20130344868 | COORDINATED MULTIPOINT RESOURCE MANAGEMENT MEASUREMENT - A method for performing a measurement procedure is described. A measId in a measIdList within a VarMeasConfig is selected. Autonomous removal of measurement identities related to the channel state information reference signal (CSI-RS) is performed. Removal of measurement identities related to the channel state information reference signal (CSI-RS) due to a handover or a successful re-establishment is performed. | 12-26-2013 |
20130344869 | COORDINATED MULTIPOINT RESOURCE MANAGEMENT MEASUREMENT - A method for performing a measurement procedure is described. Autonomous removal or modification of measurement objects related to the channel state information reference signal (CSI-RS) is performed. Removal or modification of measurement objects related to the channel state information reference signal (CSI-RS) due to a handover or a successful re-establishment is performed. | 12-26-2013 |
20140031028 | PROXIMITY SERVICE DISCOVERY USING A LICENSED FREQUENCY SPECTRUM - Methods, systems, and devices provide improved proximity services. In one aspect, a base station includes an information generating module and an information transmission module. The information generating module generates control information for causing a mobile device to initiate a discovery signal transmission procedure. The discovery signal transmission procedure allows the mobile device to be discovered. The information transmission module transmits the control information to the mobile device. In another aspect, a mobile device includes an information receiving module, a control module, and a signal transmission module. The information receiving module receives control information. The control module initiates a discovery signal transmission procedure for proximity services responsive to the information receiving module receiving the control information. The discovery signal transmission procedure includes generating a discovery signal allowing the mobile device to be discovered. The signal transmission module broadcasts the discovery signal. | 01-30-2014 |
20140094213 | Transmission Power Control for Signals Used by User Equipment Terminals for Device-to-Device Services - Methods, systems, and devices provide improved power control for signals used for device-to-device services. In one aspect, a user equipment (“UE”) terminal controls the transmission power of signals used for device-to-device (“D2D”) services based on power control parameters provided by a base station. The UE terminal includes a first power control module for controlling a first transmission power to be applied to signals used for communication with a base station. The UE terminal also includes a second power control module for controlling a second transmission power to be applied to signals used for D2D services. The first and second transmission powers can be determined based on at least one power control parameter received from the base station. The UE terminal also includes a signal transceiver module for transmitting signals used for uplink/downlink communications using the first transmission power and transmitting signals used for D2D services using the second transmission power. | 04-03-2014 |
20140119207 | SYSTEMS AND METHODS FOR HANDLING A TYPE-2 CARRIER - A User Equipment (UE) for handling a type-2 carrier is described. The UE includes a processor and memory in electronic communication with the processor. The instructions stored in the memory are executable to apply a configuration with one or more serving cells including at least one type-2 secondary cell (SCell). The instructions stored in the memory are also executable to obtain a measurement for each of the one or more serving cells except for the at least one type-2 SCell. The instructions stored in the memory are further executable to set a measurement list to include the measurement for each of the one or more serving cells except for the at least one type-2 SCell. The instructions stored in the memory are additionally executable to send the measurement list. | 05-01-2014 |
20140119246 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD) cell and at least one time-division duplexing (TDD) cell. The UE also selects a first cell for FDD and TDD carrier aggregation. The UE further determines a set of downlink subframe associations for the first cell that indicate at least one UCI transmission uplink subframe of the UCI transmission cell. The UE additionally sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information in the UCI transmission uplink subframe of the UCI transmission cell. | 05-01-2014 |
20140140281 | PRIORITIZING MULTIPLE CHANNEL STATE INFORMATION (CSI) REPORTING WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. Multiple channel state information (CSI) reports are generated for multiple component carriers (CCs) that are scheduled to be transmitted in a subframe. A method of prioritization for the CSI reports is selected. A highest priority CSI report of the multiple CSI reports is determined using the selected method of prioritization. The highest priority CSI report is transmitted. | 05-22-2014 |
20140198730 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - An evolved Node B (eNB) for sending feedback information is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB determines configuration parameters related to an Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH). The eNB also sends a configuration signal based on the configuration parameters. The eNB additionally receives data in a Physical Uplink Shared Channel (PUSCH). The eNB further sends Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the configuration parameters. | 07-17-2014 |
20140198731 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - An evolved Node B (eNB) for sending feedback information is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB determines configuration parameters related to an Enhanced Physical Hybrid-Automatic Repeat reQuest (ARQ) Indicator Channel (EPHICH). The eNB also sends an uplink grant and an associated EPHICH resource indicator based on the configuration parameters. The eNB additionally receives data in a Physical Uplink Shared Channel (PUSCH). The eNB further sends Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the configuration parameters. | 07-17-2014 |
20140198733 | SYSTEMS AND METHODS FOR DYNAMICALLY CONFIGURING A FLEXIBLE SUBFRAME - A user equipment (UE) for dynamically configuring a flexible subframe is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines that a subframe is a flexible subframe. The UE determines whether a downlink is indicated for the flexible subframe. The UE sets the flexible subframe as a downlink subframe if a downlink is indicated. | 07-17-2014 |
20140198734 | DEVICES FOR ESTABLISHING MULTIPLE CONNECTIONS - A method by a User Equipment (UE) is described. The method includes establishing a first radio interface between the UE and a first point on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The method also includes establishing a second radio interface between the UE and a second point on the E-UTRAN by using the first radio interface. The method further includes mapping data radio bearers (DRBs) to at least one of the first radio interface and the second radio interface. | 07-17-2014 |
20140198773 | SYSTEMS AND METHODS FOR SPECIAL SUBFRAME CONFIGURATION FOR CARRIER AGGREGATION - A user equipment (UE) for special subframe configuration for carrier aggregation is described. The UE includes a processor and memory in electronic communication with the processor. Executable instructions are stored in the memory. The UE transmits and receives based on the special subframe configuration, regardless of a combination of special subframe configurations of the aggregated cells. | 07-17-2014 |
20140247741 | COORDINATED MULTIPOINT (COMP) RADIO RESOURCE MANAGEMENT (RRM) MEASUREMENT - A method performed by a user equipment (UE) is described. A measurement configuration is received from an evolved NodeB (eNB). The measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations. A measurement is performed based on a cell-specific reference signal (CRS). A measurement is performed based on a channel state information reference signal (CSI-RS) based on the measurement configuration. A measurement report is generated in a radio resource control (RRC) layer. The measurement report is sent to the eNB. | 09-04-2014 |
20140269539 | SYSTEMS AND METHODS FOR FEEDBACK REPORTING - A User Equipment (UE) for sending feedback is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives signaling to configure the UE with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells. If the UE is configured with the multiple serving cells and at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then the UE also determines a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell. The UE further sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration. | 09-18-2014 |
20140286243 | SYSTEMS AND METHODS FOR ESTABLISHING MULTIPLE RADIO CONNECTIONS - A method for establishing multiple radio connections by a user equipment (UE) is described. The method includes receiving a first physical downlink control channel (PDCCH) that includes a first cyclic redundancy check (CRC) scrambled by a first cell radio network temporary identifier (C-RNTI) in a primary radio connection. The method also includes decoding the first PDCCH. The method also includes receiving a second PDCCH that includes a second CRC scrambled by a second C-RNTI in a secondary radio connection. The method also includes decoding the second PDCCH. | 09-25-2014 |
20140286305 | SYSTEMS AND METHODS FOR ESTABLISHING MULTIPLE RADIO CONNECTIONS - A method for establishing multiple radio connections by a user equipment (UE) is described. The method includes establishing a primary radio connection between the UE and a first point on an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The method also includes receiving a connection control message for a second radio connection with a second point on the E-UTRAN. The method also includes performing a random access procedure for the secondary radio connection in response to receiving the connection control message. | 09-25-2014 |
20140293881 | SYSTEMS AND METHODS FOR DEMODULATION REFERENCE SIGNAL SELECTION - An evolved Node B (eNB) for demodulation reference signal (DMRS) selection is described. The eNB includes a processor and instructions stored in memory that is in electronic communication with the processor. The eNB determines a DMRS configuration based on a modulation and coding scheme (MCS). The eNB also determines downlink control information (DCI). The DCI includes signaling that indicates the DMRS configuration. The eNB further sends the DCI. | 10-02-2014 |
20140301255 | SYSTEMS AND METHODS FOR CONFIGURATION SIGNALING - A User Equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives a first TDD UL/DL configuration for a cell and secondary configuration information that includes at least a second TDD UL/DL configuration for the cell. | 10-09-2014 |
20140334351 | SYSTEMS AND METHODS FOR SIGNALING REFERENCE CONFIGURATIONS - A user equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives a primary TDD UL/DL configuration for a serving cell and reconfiguration information. The UE determines a downlink (DL)-reference TDD UL/DL configuration based on the primary TDD UL/DL configuration and the reconfiguration information. The UE determines an uplink (UL)-reference TDD UL/DL configuration based on the primary TDD UL/DL configuration and the reconfiguration information. The UE performs Physical Downlink Shared Channel (PDSCH) operations based on the DL-reference TDD UL/DL configuration. The UE performs Physical Uplink Shared Channel (PUSCH) operations based on the UL-reference TDD UL/DL configuration. | 11-13-2014 |
20140334359 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD) cell and at least one time-division duplexing (TDD) cell. The UE also selects a first cell for FDD and TDD carrier aggregation. The UE further determines a set of downlink subframe associations for the first cell that indicate at least one UCI transmission uplink subframe of the UCI transmission cell. The UE additionally sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information in the UCI transmission uplink subframe of the UCI transmission cell. | 11-13-2014 |
20140334391 | CHANNEL STATE MEASUREMENT AND REPORTING - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A Type 2 channel state information (CSI) report is generated for a CSI reference resource. The Type 2 CSI report is sent to a base station. The Type 2 CSI report is computed from a channel measurement based on a non-zero power reference signal on a single subframe within a configured CSI-RS resource associated with a CSI process. | 11-13-2014 |
20140335872 | SYSTEMS AND METHODS FOR RE-ESTABLISHING A CONNECTION - A method for re-establishing a connection by a user equipment (UE) is described. The method includes establishing a first connection between the UE and an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The method also includes establishing a second connection between the UE and the E-UTRAN. The method also includes informing the E-UTRAN of a failure of the second connection when a failure of the second connection is detected. | 11-13-2014 |
20140348116 | REDUCING CONGESTION IN WIRELESS COMMUNICATION NETWORKS - In a method for controlling network congestion, a parameter to bar access from specific user equipment is adjusted. The adjusted parameter in a specific system information block which is different from a System Information Block Type2 is transmitted. The method may be performed by a base station. | 11-27-2014 |
20140349713 | DEVICES FOR MULTI-GROUP COMMUNICATIONS - A User Equipment (UE) configured for multi-group communications is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE detects a plurality of cells. The UE also determines to use multiple groups of one or more cells. The UE further determines a primary secondary cell (PSCell) for a non-primary cell (non-PCell) group based on UE-specific radio resource control (RRC) signaling. The UE additionally receives information using the multiple groups. | 11-27-2014 |
20150023228 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation. At least one serving cell is a TDD cell and at least one serving cell is a FDD cell. The UE also determines physical downlink shared channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) transmission timing for a serving cell. When a primary cell is a TDD cell, the PDSCH HARQ-ACK transmission timing for the serving cell is determined based on a downlink (DL) association set for the serving cell. The UE further sends PDSCH HARQ-ACK information based on the PDSCH HARQ-ACK transmission timing. | 01-22-2015 |
20150023229 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation. At least one serving cell is a TDD cell and at least one serving cell is a FDD cell. The UE also determines physical downlink shared channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) transmission timing for a serving cell. When a primary cell is a TDD cell, the PDSCH HARQ-ACK transmission timing for the serving cell is determined based on a downlink (DL) association set for the serving cell. The UE further sends PDSCH HARQ-ACK information based on the PDSCH HARQ-ACK transmission timing. | 01-22-2015 |
20150023305 | UPLINK CONTROL INFORMATION TRANSMISSION ON BACKWARD COMPATIBLE PUCCH FORMATS WITH CARRIER AGGREGATION - A method for reporting uplink control information (UCI) on a user equipment (UE) is described. A number of bits for a channel quality indicator and/or a precoding matrix index and/or a rank indication (CQI/PMI/RI) is obtained. A number of component carriers with hybrid automatic repeat request acknowledgement (HARQ-ACK) reporting is also obtained. A total number of HARQ-ACK bits is further obtained. A number of HARQ-ACK bits that can be carried on the physical uplink control channel (PUCCH) is determined. Bundling is performed on the total number of HARQ-ACK bits to be reported to fit the total number of HARQ-ACK bits to be reported into the number of HARQ-ACK bits that can be carried on the PUCH. A backward compatible PUCCH format is used to simultaneously carry the CQI/PMI/RI bits and the HARQ-ACK bits. | 01-22-2015 |
20150043391 | SYSTEMS AND METHODS FOR RECONFIGURATION SIGNALING - A User Equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE decodes UL/DL reconfiguration signaling on a physical downlink control channel (PDCCH) or enhanced physical downlink control channel (EPDCCH). The UE also determines if the UL/DL reconfiguration signaling is correctly decoded. The UE further sends feedback for the UL/DL reconfiguration signaling and physical downlink shared channel (PDSCH) hybrid automatic repeat request acknowledgement/negative acknowledgement (HARQ-ACK) information in an uplink subframe corresponding to the PDSCH HARQ-ACK information. | 02-12-2015 |
20150043399 | DEVICES FOR REPORTING UPLINK INFORMATION - A user equipment (UE) for reporting information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE selects a reference cell having a reference uplink-downlink (UL-DL) configuration. The UE also selects a first uplink subframe from the reference cell. The UE further selects a first subframe set from a first cell having a first UL-DL configuration. The first UL-DL configuration is different than the reference UL-DL configuration. The UE additionally determines a first set of associations between the first subframe set and the first uplink subframe. The UE further aggregates information corresponding to the reference cell and information corresponding to the first cell based on the first set of associations to produce aggregated information. The UE also reports the aggregated information on an uplink reporting cell. | 02-12-2015 |
20150043434 | SYSTEMS AND METHODS FOR SUBFRAME BUNDLING - A User Equipment (UE) for performing subframe bundling is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines consecutive uplink (UL) subframes based on UL subframes of a UL-reference uplink/downlink (UL/DL) configuration of a serving cell. The UE also performs a subframe bundling operation based on the consecutive UL subframes. | 02-12-2015 |
20150085760 | SYSTEMS AND METHODS FOR MULTI-CONNECTIVITY OPERATION - A method for sending a power headroom report (PHR) by a User Equipment (UE) is described. The method includes obtaining a value of a power headroom for each activated serving cell with configured uplink corresponding to a second radio connection. The method also includes generating an extended power headroom MAC control element based on the obtained values and information related to power management corresponding to a first radio connection. The method further includes transmitting the extended power headroom MAC control element. | 03-26-2015 |
20150092634 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - A User Equipment (UE) for sending feedback information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) feedback parameter corresponding to a PCell. The UE also determines a secondary cell (SCell) feedback parameter corresponding to an SCell. The SCell feedback parameter is different from the PCell feedback parameter. The UE further performs Physical Uplink Control Channel (PUCCH) Format 1b channel selection based on the PCell feedback parameter and the SCell feedback parameter. The UE additionally sends Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the channel selection. | 04-02-2015 |
20150117381 | SIGNALING POWER ALLOCATION PARAMETERS FOR UPLINK COORDINATED MULTIPOINT (COMP) - A method for obtaining multiple path loss parameters by a user equipment (UE) is described. A radio resource control (RRC) signaling message is received from a serving eNode B. A first transmit power corresponding to a first reference signal is obtained from the RRC signaling message. A second transmit power corresponding to a second reference signal is obtained from the RRC signaling message. A first path loss parameter is calculated using the first transmit power. A second path loss parameter is calculated using the second transmit power. | 04-30-2015 |
20150200751 | ENHANCED PUCCH REPORTING FOR CARRIER AGGREGATION - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. Multiple serving cells are configured. The UE determines a first parameter that defines a maximum number of elements with downlink (DL) assignments for a subframe in the DL association set for a serving cell. The UE determines physical downlink shared channel (PDSCH) hybrid automatic repeat request acknowledgement/negative acknowledgement (HARQ-ACK) information for the serving cell according to the first parameter. The UE sends the PDSCH HARQ-ACK information. | 07-16-2015 |
20150200752 | SYSTEMS AND METHODS FOR CARRIER AGGREGATION - A UE for performing carrier aggregation is described. The UE determines a duplex method of each serving cell for carrier aggregation. A primary cell is a FDD cell. When transmitting PDSCH HARQ-ACK information on a PUSCH or using a PUCCH format 3 in a later subframe, the UE generates two NACKs for a PDSCH transmission in an earlier subframe for a serving cell when a configured downlink transmission mode supports up to two transport blocks, the serving cell is a TDD cell and an earlier subframe is an uplink subframe for the serving cell. The UE further generates a single NACK for a PDSCH transmission in an earlier subframe for a serving cell when a configured downlink transmission mode supports a single transport block, the serving cell is a TDD cell and an earlier subframe is an uplink subframe for the serving cell. | 07-16-2015 |
20150215826 | SYSTEMS AND METHODS FOR DUAL-CONNECTIVITY OPERATION - A method for receiving a radio resource control (RRC) message by a user equipment (UE) is described. The method includes receiving an RRC connection reconfiguration (RRCConnectionReconfiguration) message including secondary cell group (SCG) configuration parameters. The RRC connection reconfiguration message has a structure that the SCG configuration parameters do not include a data radio bearer (DRB) configuration. | 07-30-2015 |
20150215965 | SYSTEMS AND METHODS FOR DUAL-CONNECTIVITY OPERATION - A method for receiving a radio resource control (RRC) message by a user equipment (UE) is described. The method includes receiving, from a first evolved Node B (eNB), an RRC connection reconfiguration (RRCConnectionReconfiguration) message including data radio bearer (DRB) configuration parameters for remapping a DRB that is established on a master cell group (MCG) to a secondary cell group (SCG). | 07-30-2015 |
20150264678 | SYSTEMS AND METHODS FOR FEEDBACK REPORTING - A User Equipment (UE) is described. The UE decodes an uplink/downlink (UL/DL) reconfiguration downlink control information (DCI) with an enhanced interference mitigation with traffic adaptation (eIMTA)-radio network temporary identifier (RNTI) on a physical downlink control channel (PDCCH). The UE also determines if one or more valid UL/DL configurations in the UL/DL reconfiguration DCI with eIMTA-RNTI for all configured eIMTA cells are received. The UE further determines if physical uplink control channel (PUCCH) format 3 is configured. The UE additionally determines a PUCCH resource for physical downlink shared channel (PDSCH) hybrid automatic repeat request acknowledgement/negative acknowledgement (HARQ-ACK) reporting based on whether valid UL/DL configurations in the UL/DL reconfiguration DCI with eIMTA-RNTI for all of the configured eIMTA cells corresponding to a subframe for the PUCCH resource are received. The UE also sends PDSCH HARQ-ACK information on the selected PUCCH resource in an uplink subframe. | 09-17-2015 |
20150271846 | SCHEDULING WIRELESS DEVICE-TO-DEVICE COMMUNICATIONS - A radio access node ( | 09-24-2015 |
20150296486 | SYSTEMS AND METHODS FOR SECONDARY CELL ID SELECTION - A method performed by a user equipment (UE) is described. The method includes receiving a physical cell identifier information element (IE) from an evolved node B (eNB). The physical cell identifier IE is associated with a secondary cell (SCell) that is on an unlicensed Long-Term Evolution (LTE) carrier frequency. The method also includes determining a physical-layer cell identity (PCI) of the SCell based on the physical cell identifier IE. The method further includes applying the PCI as a parameter for physical channels or signals on the SCell. | 10-15-2015 |
20150327243 | SYSTEMS AND METHODS FOR DUAL-CONNECTIVITY OPERATION - A user equipment (UE) is described. The UE determines that dual-connectivity is configured with more than one cell group. The UE also determines if a total scheduled transmission power of the cell groups exceeds a maximum allowed transmission power of the UE. The UE further determines a priority of uplink control information (UCI) types and channel types among the cell groups. The UE additionally determines if UCI is carried on a physical uplink shared channel (PUSCH) transmission for a cell group. The UE also determines if total transmission power of all cell groups with UCI-only transmissions exceeds the maximum allowed transmission power of the UE. The UE transmits UCI and channels on the cell groups. | 11-12-2015 |
20160028532 | DEVICES FOR SENDING AND RECEIVING FEEDBACK INFORMATION - A User Equipment (UE) for sending feedback information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a primary cell (PCell) configuration. The UE also determines a secondary cell (SCell) configuration. The SCell configuration is different from the PCell configuration. The UE further determines a feedback parameter M | 01-28-2016 |
20160044543 | WIRELESS TELECOMMUNICATION CELL DETECTION TECHNIQUE - The present arrangement relates to a method performed by a user equipment (UE), comprising applying different requirement for a concerned inter-frequency measurement if the UE receives instruction from an eNB. The requirement for the concerned inter-frequency measurement is different than ones for inter-frequency measurements other than the concerned inter-frequency measurement. | 02-11-2016 |
20160044618 | SYNCHRONIZATION SIGNALS FOR DEVICE-TO-DEVICE COMMUNCATIONS - A user equipment (UE) may comprise a detector which is configured to detect a first sidelink synchronization signal. The UE may comprise a receiver which is configured to receive a physical sidelink channel. The physical sidelink channel may carry information specifying whether or not a source of the first sidelink synchronization signal is in-coverage. The first sidelink synchronization signal may be generated by using at least a first identity. | 02-11-2016 |
Patent application number | Description | Published |
20110162608 | METHOD AND SYSTEM FOR CONTROLLING ENGINE EXHAUST - An engine having one of a plurality of exhaust valves in each cylinder that may be deactivated is disclosed. In one example, one exhaust valve of each cylinder is deactivated in response to engine speed. The engine may have improved engine torque at low engine speeds and reduced time to torque (e.g., turbo lag). | 07-07-2011 |
20120037101 | INTEGRATED EXHAUST MANIFOLD - A cylinder head of an engine with an integrated exhaust manifold is provided. In one example, the inner exhaust runners and outer exhaust runners have different cross-sectional areas. This arrangement may be beneficial to maintain exhaust flow rates in the integrated exhaust manifold. | 02-16-2012 |
20120110996 | METHOD AND SYSTEM FOR CONTROLLING ENGINE EXHAUST - An engine having one of a plurality of exhaust valves in each cylinder that may be deactivated is disclosed. In one example, one exhaust valve of each cylinder is deactivated in response to engine speed. The engine may have improved engine torque at low engine speeds and reduced time to torque (e.g., turbo lag). | 05-10-2012 |
20130098000 | INTERNAL COMBUSTION ENGINE HAVING A PLURALITY OF EXHAUST PORTS PER CYLINDER AND CHARGE EXCHANGE METHOD FOR SUCH AN INTERNAL COMBUSTION ENGINE - A method for controlling valve actuation in an engine is provided. The method includes initiating combustion operation in a first cylinder, opening, via a first cam, a first exhaust valve coupled to the first cylinder for a first opening duration. The method further includes opening, via a second cam, a second exhaust valve coupled to the first cylinder for a second opening duration not equivalent to the first opening duration. | 04-25-2013 |
20130220457 | CHARGE AIR COOLER DUCT SYSTEM AND METHOD - A cold charge duct, a system and method are provided for removing and controlling the reintroduction of a condensate in diesel or gasoline engine intake air. The duct may include an exterior wall which may define a passage configured to pass air from a turbocharger to an engine. The exterior wall may have one or more openings, and a separator formed to be substantially flush with an inner surface of the external wall. In this way, it is possible to utilize an edge-based separator to generate a sudden decrease in the flow rate thereby causing a water condensate to drop into the openings for later reintroduction into the engine. | 08-29-2013 |
20130263828 | CHARGE AIR COOLER CONTROL SYSTEM AND METHOD - A charge air cooler arrangement, a charge air cooler tank, and method are disclosed. The charge air cooler arrangement includes a charge air cooler having an operable thermal transfer area configured to transfer heat from inside the charge air cooler to outside of the charge air cooler. The charge air cooler arrangement may also include a valve configured to change the operable thermal transfer area from a relatively large area to a relatively small area. | 10-10-2013 |
20130306040 | MISFIRE PREVENTION WATER AGITATOR SYSTEM AND METHOD - A misfire prevention water agitator system and method are disclosed. The system may include a boosted engine having a charge air cooler downstream of the compressor and having an air intake passage with a throttle between an intake manifold and the charge air cooler. The system may also include a line coupled in parallel with the air intake passage between the intake manifold and the charge air cooler, the line coupled to the intake manifold downstream of the throttle, the line including an agitator mounted within 45 degrees of vertical. | 11-21-2013 |
20140026870 | CHARGE AIR COOLER CONTROL SYSTEM AND METHOD - A charge air cooler, a system to control condensation within a plurality of cooling tubes of a charge air cooler, and a method are disclosed. The system includes an air flow control arrangement configured to selectively ensure a flow rate of charge air through each individual cooling tube is either essentially zero or above a predetermined minimum flow rate in accordance with predetermined operating conditions of the engine. | 01-30-2014 |
20140048048 | METHOD FOR CONTROLLING A VARIABLE CHARGE AIR COOLER - Embodiments for a charge air cooler are provided. In one example, an engine method comprises increasing intake air flow velocity through a charge air cooler in response to an estimated condensation formation value within the charge air cooler. In this way, condensation accumulation within the charge air cooler may be prevented. | 02-20-2014 |
20140048049 | METHOD FOR CONTROLLING A VARIABLE CHARGE AIR COOLER - Embodiments for a charge air cooler are provided. In one example, an engine method comprises increasing intake air flow velocity through a charge air cooler and coordinately adjusting a position of one or more of an intake manifold throttle and a turbocharger wastegate in response to the increased intake air flow velocity to maintain torque. In this way, intake air flow velocity may be increased while maintaining desired torque. | 02-20-2014 |
20140123963 | SYSTEM AND METHOD TO IDENTIFY AMBIENT CONDITIONS - Methods and systems are provided for estimating an ambient humidity value used to determine condensate formation in a charge air cooler. The ambient humidity value is determined from charge air cooler efficiency and windshield wiper speed thresholds. The humidity value is used to calculate an amount of condensate in a charge air cooler and control engine systems to reduce condensate formation and engine misfire. | 05-08-2014 |
20140128221 | METHOD AND SYSTEM TO CONTROL VEHICLE OPERATION - Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to ambient humidity and a condensate level in a charge air cooler, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request. | 05-08-2014 |
20140128222 | PILOT DOWNSHIFTING SYSTEM AND METHOD - Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to air mass flow not reaching a threshold for CAC self-cleansing for a set duration, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request and maximum air mass flow levels for engine misfire. | 05-08-2014 |
20140157772 | CONTROLLED TRANSIENT ACCELERATION TO EVACUATE CONDENSATE FROM A CHARGE AIR COOLER - Methods and systems are provided for purging condensate from a charge air cooler. In response to condensate in a charge air cooler during a tip-in, airflow is increased at a controlled rate to the intake manifold, purging condensate from the charge air cooler. | 06-12-2014 |
20140216367 | AIR COOLER AND METHOD FOR OPERATION OF AN AIR COOLER - An air cooler line is provided. The air cooler lines includes a first air cooler having a plurality of air flow conduits, each of the air flow conduits including an inlet, and a first air flow deflector extending across peripheral portions of the inlets and fixedly coupled to the air flow conduits and a second air cooler having a plurality of air flow conduits, each of the air flow conduits including an inlet, and a second air flow deflector extending across peripheral portions of the inlets and fixedly coupled to the air flow conduits, the second air flow deflector differing in at least one of size and geometry than the first air flow deflector. | 08-07-2014 |
20140298845 | AIR COOLER HAVING A CONDENSATION TRAP AND METHOD FOR AIR COOLER OPERATION - A condensate trap upstream of an engine cylinder is provided. The condensate trap includes a condensate containment shelf positioned within an outlet manifold of an air cooler, above a lower side of the outlet manifold, and extending from a first lateral side of the outlet manifold to a second lateral side of the outlet manifold, the condensate containment shelf and a outlet port housing forming a condensate restriction in direct fluidic communication with an outlet port of the outlet manifold. | 10-09-2014 |
20140299077 | ACTIVE GRILLE SHUTTER SYSTEM WITH A STAGED PROGRESSIVE LINKAGE TO REDUCE ENGINE MISFIRE FROM CHARGE AIR COOLER CONDENSATION - Methods and systems are provided for adjusting a dual grille shutter system based on engine operating conditions. A position of a first group of grille shutters may be adjusted by a motor in response to engine temperature, CAC temperature, and driving conditions. A position of a second group of grille shutters may be adjusted based on the position of the first group of grille shutters. | 10-09-2014 |
20140325979 | COMPRESSOR RECIRCULATION VALVE CONTROL TO REDUCE CHARGE AIR COOLER CONDENSATE - Methods and systems are provided for adjusting a compressor recirculation valve in response to condensate forming conditions in a charge air cooler (CAC). In one example, a compressor recirculation valve may be opened in response to an induction pressure greater than a threshold pressure when the induction pressure is greater than required to produce a manifold pressure required for a torque demand. Further, a wastegate may be opened to further reduce the induction pressure during certain driving conditions. | 11-06-2014 |
20140328665 | WASTEGATE CONTROL TO REDUCE CHARGE AIR COOLER CONDENSATE - Methods and systems are provided for adjusting a wastegate in response to condensate forming conditions in a charge air cooler (CAC). In one example, a wastegate may be opened in response to an induction pressure greater than a threshold pressure when the induction pressure is greater than required to produce a manifold pressure required for a torque demand. Further, a compressor recirculation valve may be opened to further reduce the induction pressure during certain driving conditions. | 11-06-2014 |
20140352661 | METHOD FOR PURGING CONDENSATE FROM A CHARGE AIR COOLER - Methods and systems are provided for cleaning out condensate stored at a charge air cooler. In response to increased condensate accumulation at a charge air cooler, airflow through the engine is increased to purge the condensate while an engine actuator is adjusted to maintain engine torque. Combustion stability issues of engine cylinders are addressed by adjusting fueling of each cylinder individually during condensate ingestion. | 12-04-2014 |
20140352663 | METHOD FOR PURGING CONDENSATE FROM A CHARGE AIR COOLER - Methods and systems are provided for cleaning out condensate stored at a charge air cooler. In response to increased condensate accumulation at a charge air cooler, airflow through the engine is increased to purge the condensate while an engine actuator is adjusted to maintain engine torque. Combustion stability issues of engine cylinders are addressed by adjusting fueling of each cylinder individually during condensate ingestion. | 12-04-2014 |
20150047584 | INTERNAL COMBUSTION ENGINE HAVING A PLURALITY OF EXHAUST PORTS PER CYLINDER AND CHARGE EXCHANGE METHOD FOR SUCH AN INTERNAL COMBUSTION ENGINE - A method for controlling valve actuation in an engine is provided. The method includes initiating combustion operation in a first cylinder, opening, via a first cam, a first exhaust valve coupled to the first cylinder for a first opening duration. The method further includes opening, via a second cam, a second exhaust valve coupled to the first cylinder for a second opening duration not equivalent to the first opening duration. | 02-19-2015 |
20150226320 | PILOT DOWNSHIFTING SYSTEM AND METHOD - Methods and systems are provided for performing a multiple gear downshift of a transmission gear by transiently operating in an intermediate gear. In response to air mass flow not reaching a threshold for CAC self-cleansing for a set duration, the transmission gear may be downshifted from a higher gear to an intermediate gear, and then to a requested lower gear. Downshifting through an intermediate gear may also be controlled based on the gear shift request and maximum air mass flow levels for engine misfire. | 08-13-2015 |
20150369157 | SYSTEM AND METHOD FOR REDUCING ENGINE OIL DILUTION - Methods and systems are provided for modeling an oil dilution qualitative indicator based on an integrated difference between a commanded air-to-fuel ratio and an engine air-to-fuel ratio as determined via an oxygen sensor, cumulative cold engine temperature operating duration, and fuel injection characteristics (timing, duration, number of injections) allowing fuel injection timing modifications that minimize oil dilution when the oil dilution qualitative indicator is greater than a threshold level. | 12-24-2015 |
20160102623 | METHOD FOR REDUCING ENGINE OIL DILUTION - Various systems and methods are described for reducing engine oil dilution in a boosted engine. One method comprises, when engine oil dilution is higher than a first threshold and engine oil temperature is below a temperature threshold, adjusting a position of an air induction system (AIS) throttle, generating a vacuum, and providing the vacuum to a crankcase of the boosted engine to enhance fuel evaporation from engine oil. The providing of vacuum may be discontinued when engine oil dilution is lower than the first threshold and/or when engine oil temperature rises above the temperature threshold. | 04-14-2016 |