Patent application number | Description | Published |
20080310405 | Cooperative multiple access in wireless networks - A cooperative cluster of wireless nodes exchange data before cooperatively communicating with a destination node over a MIMO channel. In a cooperative cluster of M nodes, each node shares 1/M of its own data with each of the other nodes, and keeps 1/M of its own data for transmission. Each node receives 1/M of data from each cooperative node. The data is merged at each cooperative node, and transmitted to the destination node. | 12-18-2008 |
20090296595 | SYSTEMS AND METHODS FOR REDUCING FEEDBACK OVERHEAD IN WIRELESS NETWORKS USING CHANNEL CHARACTERISTICS - A method for reducing feedback overhead in a wireless communications system is described. Channel quality indicator (CQI) values corresponding to a measured channel quality are received from one or more mobile communications devices. The mobile communications devices to be scheduled at a future time are estimated. CQI values are requested from the mobile communications devices that are estimated to be scheduled at a future time. | 12-03-2009 |
20100022184 | SYSTEMS AND METHODS FOR SELECTIVE RELAYING IN WIRELESS NETWORKS - A method for selective transmission by a relay node in a wireless communications system is described. A signal is received. Channel quality information is received. A threshold value is determined. The channel quality information is compared to the threshold value. The signal is transmitted if the channel quality information is above the threshold value. | 01-28-2010 |
20100067491 | SYSTEMS AND METHODS FOR CLOSED SUBSCRIBER GROUP CELL RESELECTION - A method for base station reselection in a wireless communications system is disclosed. The method may determine a first indication of signal strength for a first signal sent from a first base station and received by a user equipment (UE). The method may also determine a second indication of signal strength for a second signal sent from a second base station and received by the UE. The method may further determine a relative signal strength based on the first indication of signal strength and the second indication of signal strength. The method may also determine a Q factor based on the relative signal strength. The Q factor may be an indication of when base station reselection should be performed. | 03-18-2010 |
20100112998 | SYSTEMS AND METHODS FOR MAINTAINING CONSTANT CLOSED SUBSCRIBER GROUP CELL RESELECTION RADIUS - A method for self-configuration of offset factors between two base stations in a wireless communications system is described. A first offset factor is sent to a first user equipment (UE) by a first base station. An offset factor is an indication of the reselection area around a home evolved nodeB (HeNB). A second offset factor is received from a second UE. The first offset factor is modified using the second offset factor. The modified first offset factor is sent to the first UE. | 05-06-2010 |
20100232336 | SYSTEMS AND METHODS FOR SELECTING ANTENNAS FOR COORDINATED MULTIPOINT TRANSMISSION - A method of transmitting data from multiple base stations to a user equipment (UE) with possibly different numbers of antennas selected at the individual cooperating base stations is described. Also described is a method of transmitting data from a UE to multiple base stations with possibly different numbers of antennas selected at the individual cooperating base stations. | 09-16-2010 |
20100235709 | SYSTEMS AND METHODS FOR PROVIDING UNEQUAL ERROR PROTECTION CODE DESIGN FROM PROBABILISTICALLY FIXED COMPOSITION CODES - A method of encoding that uses standard codecs such as linear encoders and decoders for encoding and decoding data with different levels of robustness to errors is described. In one configuration, multiple encoders may be utilized, and one of the encoders may use a standard encoder such as a turbo code followed by a nonlinearity that creates an unequal distribution of ones and zeros in a binary representation of the code. In another configuration, a coder may be utilized that represents message outputs as “channels” that create state transitions (or symbol errors) in a data forward error correction coder. | 09-16-2010 |
20100322185 | SYSTEMS AND METHODS FOR COMPONENT CARRIER SELECTION IN A WIRELESS COMMUNICATION SYSTEM - The present disclosure relates to component carrier (CC) selection in a wireless communication system. A user equipment (UE) that is in idle mode may receive a reference signal (RS) from an evolved Node B (eNB), obtain signal quality measurements with respect to the RS, and switch to a new CC based on the signal quality measurements. For a UE that is in connected mode, an eNB may obtain uplink channel condition information corresponding to uplink CCs, obtain downlink channel condition information corresponding to downlink CCs, and select a CC pair for the UE to use based on the uplink channel condition information and the downlink channel condition information. | 12-23-2010 |
20110041021 | TRANSMISSION OF DIFFERENT REDUNDANCY VERSIONS ON DIFFERENT DEGREES OF FREEDOM - For downlink cooperative multi-point (CoMP) communication, each cooperating transmission point (e.g., base station) may send a retransmission packet with a different redundancy version to a user equipment (UE). Mechanisms may be provided to determine which transmission point should send packets with which redundancy version. For uplink CoMP, in order to reduce the backhaul overhead, each cooperating base station may share only a fraction of the retransmitted packet with the serving base station. Also, different retransmission packets with different redundancy versions can be transmitted to different cooperating base stations using spatial degrees of freedom. | 02-17-2011 |
20110201341 | COORDINATING UPLINK RESOURCE ALLOCATION - A base station configured for coordinating uplink resource allocation is described. The base station includes a processor and instructions stored in memory. The base station generates uplink resource allocation information for one or more wireless communication devices. The uplink resource allocation information is sent to one or more base stations. The base station allocates uplink resources based on the uplink resource allocation information. The base station sends an assignment to one or more wireless communication devices based on the uplink resource allocation information. | 08-18-2011 |
20110246840 | TRANSMISSION OF ACKNOWLEDGEMENT AND NEGATIVE ACKNOWLEDGEMENT IN A WIRELESS COMMUNICATION SYSTEM - A communication device configured for transmission of Acknowledgement and Negative Acknowledgement (ACK/NACK) is described. The communication device includes a processor and instructions stored in memory. The communication device determines one or more thresholds based on a size of one or more code words and generates a compressed ACK/NACK sequence. The compressed ACK/NACK sequence identifies one or more correctly received code words and one or more incorrectly received code words if the number of incorrectly received code words is less than the threshold. If the number of incorrectly received code words is greater than the threshold, the compressed ACK/NACK sequence indicates that all of the one or more code words were incorrectly received. | 10-06-2011 |
20110269489 | ASSIGNING AND COORDINATING UPLINK REFERENCE SIGNALS FOR COOPERATIVE COMMUNICATION - A method for assigning and coordinating uplink reference signals for cooperative communication is disclosed. Data about an assigned uplink reference signal sequence used by a wireless communication device is received at a non-serving base station. An uplink reference signal estimate is determined based on the data. The uplink reference signal estimate is used to coherently demodulate a signal received from the wireless communication device or is used to estimate an uplink channel between the non-serving base station and the wireless communication device. | 11-03-2011 |
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 |
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 |
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 |
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 |
20130021925 | COORDINATED MULTIPOINT (COMP) TRANSMISSION METHOD SELECTION AND FEEDBACK REQUIREMENTS - A method for configuring coordinated multipoint (CoMP) transmission by an eNode B is described. Feedback information is received from a user equipment (UE). A CoMP transmission measurement set is determined. The CoMP transmission measurement set is sent to the UE. A channel state information (CSI) report of the CoMP measurement set is received from the UE. A CoMP transmission method used for each CoMP transmission point in the CoMP measurement set is selected. | 01-24-2013 |
20130039283 | QUANTIZING RELATIVE PHASE AND RELATIVE AMPLITUDE FOR COORDINATED MULTIPOINT (COMP) TRANSMISSIONS - A method for quantizing a relative phase and a relative amplitude is described. A received symbol is obtained. A relative phase is determined from the received symbol. A relative amplitude is also determined from the received symbol. A quantized relative phase is obtained for the relative phase. A quantized relative amplitude is obtained for the relative amplitude. | 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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |
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 |