Patent application number | Description | Published |
20080232492 | METHOD AND APPARATUS FOR PROVIDING CHANNEL QUALITY AND PRECODING METRIC FEEDBACK IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM - An Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth is divided into one or more Resource Blocks Groups (RBGs) each having one or more Resource Blocks, provides for feedback of channel quality information and precoding metrics for a same at least one RBG of the one or more RBGs. More particularly, a user equipment measures one or more channel quality parameters associated with at least one RBG of the one or more RBGs, determines channel quality information and a precoding metric for an RBG of the at least one RBG, and reports the channel quality information and a precoding metric determined for the RBG to a radio access network. In one embodiment of the invention, the RBG whose channel quality information and precoding metric are reported may be selected from the at least one RBG based on the measured channel quality parameters. | 09-25-2008 |
20080247652 | Q-METRIC BASED SUPPORT VECTOR MACHINE - A Support Vector Machine ( | 10-09-2008 |
20080307399 | GENE EXPRESSION PROGRAMMING BASED ON HIDDEN MARKOV MODELS - Computer programs ( | 12-11-2008 |
20090028260 | METHOD AND APPARATUS FOR PROVIDINGCHANNEL QUALITY FEEDBACK IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM - In an Orthogonal Frequency Division Multiplexing communication system, wherein frequency bandwidth may be represented by multiple Resource Block Group (RBG) levels, wherein each RBG level comprises a division of the frequency bandwidth into a number of RBGs different from the number of RBGs of the other RBG levels, a user equipment measures a channel quality associated with one or more RBGs of one or more RBG levels of the multiple RBG levels, selects an RBG of from among the measured RBGs based on the measured channel qualities, and reports channel quality information associated with the selected RBG to a radio access network, wherein reporting comprises providing an index to the selected RBG and providing channel quality information for the indexed RBG. | 01-29-2009 |
20090111445 | METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION TIMING IN A COMMUNICATION NETWORK - A method and corresponding system for controlling uplink timing in a communication network ( | 04-30-2009 |
20100039997 | METHOD AND APPARATUS FOR IMPLIED RESOURCE ASSIGNMENT FOR UPLINK ACKNOWLEDGMENT SIGNALLING - A network node constructs ( | 02-18-2010 |
20100302946 | System and Method for Relay Node Flow Control in a Wireless Communications System - A system and method for relay node flow control and/or congestion control in a wireless communications system are provided. A method for relay operation includes determining a buffer status of a buffer for data to be transmitted on a communications channel allocated from network resources controlled by a communications controller, computing buffer status information based on the buffer status, and transmitting the buffer status information to the communications controller. | 12-02-2010 |
20100322184 | Method and Apparatus for Generating Time-Frequency Patterns for Reference Signal in an OFDM Wireless Communication System - In one embodiment, a method for a wireless communication includes generating a first time-frequency reference signal pattern at a first base station. The first time-frequency reference signal pattern includes a modified version of a mother pattern of time-frequency of a fixed size. The method further includes transmitting a first reference signal using the first time-frequency reference signal pattern. | 12-23-2010 |
20110013710 | System and Method for Information Feedback in a Wireless Communications System with Coordinated Multiple Point Transmission - A system and method for information feedback in a wireless communications system with coordinated multiple point (CoMP) transmission are provided. A method for operating in a communications system, the communications system having a first communications controller and a second communications controller participating in a CoMP cooperation set, the method includes selecting a CoMP processing technique, and reporting channel information to the first communications controller. The channel information is based on the preferred CoMP processing technique. | 01-20-2011 |
20110081865 | System and Method for Inter-Cell Interference Coordination - A system and method for inter-cell interference coordination is provided. A method for controller operation includes receiving interferer information from a device served by the controller, scheduling a cell edge device based on the received interferer information, and reporting usage information of the subset of resources to neighboring controllers. The cell edge device operates in a periphery of a coverage area of the controller, and the cell edge device is scheduled to a subset of resources. The method also includes from each neighboring controller, receiving neighboring usage information of a neighboring subset of resources reserved for cell edge devices served by the neighboring controller. The method further includes scheduling a cell center device based on the received usage information from the neighboring controllers, and transmitting to scheduled devices over their respective scheduled resources. Cell center device is scheduled to resources not in the subset of resources. | 04-07-2011 |
20110243007 | System and Method for Uplink Multi-Antenna Power Control in a Communications System - A system and method for uplink multi-antenna power control in a communications system are provided. A method for user equipment operations includes determining a transmit power level for transmit antennas of the user equipment having at least two transmit antennas, and setting a power amplifier output level for each of the at least two transmit antennas in accordance with a respective transmit power level. | 10-06-2011 |
20110249590 | System and Method for Multiplexing Control and Data Channels in a Multiple Input, Multiple Output Communications System - A system and method for system and method for multiplexing control and data channels in a multiple input, multiple output (MIMO) communications system are provided. A method for transmitting control symbols and data symbols on multiple MIMO layers includes selecting a first set of codewords from Ncw codewords, distributing control symbols onto the first set of layers, placing data symbols of the first set of codewords onto the first set of layers, placing data symbols of the (Ncw-Ncw1) remaining codewords to remaining layers if Ncw>Ncw1, and transmitting the multiple MIMO layers. The first set of codewords is associated with a first set of layers from the multiple MIMO layers, and the Ncw codewords are to be transmitted simultaneously and the first set of codewords comprises Ncw1 MIMO codewords, where Ncw and Ncw1 are integers greater than or equal to 1. The remaining layers are MIMO layers from the multiple MIMO layers not in the first set of layers. | 10-13-2011 |
20110310780 | System and Method for Control Information Multiplexing for Uplink Multiple Input, Multiple Output - A system and method for control information multiplexing for uplink multiple input, multiple output are provided. A method for transmitting control information over L MIMO layers, where L is an integer value greater than one, includes generating a plurality of control modulation symbols from the control information, filling the L layers by mapping the plurality of control modulation symbols to L layers, and transmitting the L layers. | 12-22-2011 |
20120020302 | Method and Apparatus for Generating Time-Frequency Patterns for Reference Signal in an OFDM Wireless Communication System - In one embodiment, a method for a wireless communication includes generating a first time-frequency reference signal pattern at a first base station. The first time-frequency reference signal pattern includes a modified version of a mother pattern of time-frequency of a fixed size. The method further includes transmitting a first reference signal using the first time-frequency reference signal pattern. | 01-26-2012 |
20120069764 | METHOD AND APPARATUS FOR DOWNLINK RESOURCE ALLOCATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING COMMUNICATION SYSTEM - A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB. | 03-22-2012 |
20120082052 | System and Method for Coordinating Different Types of Base Stations in a Heterogeneous Communications System - A system and method for coordinating different types of base stations in a heterogeneous communications system are provided. A method of communications controller operations includes signaling an indicator of a subset of a plurality of communications resources controlled by a communications controller to a user equipment, and receiving a report comprising channel information associated with a measurement of signals transmitted in the subset from the user equipment. | 04-05-2012 |
20120106442 | System and Method for Cooperative Heterogeneous Communications Systems - A system and method for cooperative heterogeneous communications systems are provided. A communications system includes a plurality of cooperation sets, such as closed-space sets. Each closed-space set includes at least two information sources configured to operate cooperatively to transmit to a plurality of communications devices operating within a coverage area of the cooperation set. There is limited cooperation between closed-spaced sets. In addition, there may be limited or no overlap between .the coverage areas of the adjacent closed-spaced sets. | 05-03-2012 |
20120120829 | System and Method for Communicating Over Multiple Communications Links - An embodiment method for operating a device in receiving a transmission over a plurality of communications links includes assigning an allocatable receiver resource to each communications link in the plurality of communications links according to a measure derived from communications link characteristics of each respective communications link and combined communications link characteristics of the plurality of communications links, and receiving the transmission over the plurality of communications links with the assigned allocatable receiver resource. | 05-17-2012 |
20120176939 | Reference Signal Transmission and Reception Method and Equipment - A communications system and a method for performing communications are provided. User Equipments (UEs) are provided with UE-specific configuration information, such as CSI-RS (Channel Status Indication-Reference Signal) patterns, antenna port groupings, reference signal configurations, subframe configurations, and/or scrambling codes. The UEs process the received reference signals in accordance with the received configuration information and feedback measurement information for, e.g., PMI/CQI/RI (Precoding Matrix Indicator/Channel Quality Indicator/Rank Indicator of the precoding matrix) and/or the RLM/RRM (Radio Link Monitor/Radio Resource Management). | 07-12-2012 |
20120207126 | Control Channel Transmission and Reception Method and System - A first central controller of a wireless system selects a common reference signal (“CRS”) pattern for muting on a first type of control channel by the first central controller, the first type of control channel formed with resource elements (“REs”), identifies, for a first set of user equipments (“UEs”) in a serving area of the first central controller, a set of subframes including the first type of control channel, the set of subframes having REs that overlap the CRS pattern for muting, mutes the overlapping REs in the first type of control channel, frequency-division multiplexes the first type of control channel with data channels, and transmits, to the first set of UEs, the first type of control channel with the muted REs on the identified set of subframes. | 08-16-2012 |
20120238310 | METHOD AND DEVICE FOR RESOURCE CONFIGURATION - The embodiments of the present invention disclose a method and a device for resource configuration. The method includes: determining an extra resource block existing in a wireless resource, where the extra resource block is a resource that cannot be identified by a long term evolution system; configuring transmission power of a resource element in the extra resource block according to a power configuration rule; and sending a signal on the resource element in the extra resource block according to configured transmission power. With the preceding technical solution, an extra resource block can be used for transmitting a signal, so that a resource utilization rate may be improved. | 09-20-2012 |
20120281636 | System and Method for Mapping Data Symbols - A system and method for mapping data symbols are provided. A method for communications device operations includes transmitting resource element utilization information to a communications device, and mapping symbols intended for the communications device to the plurality of resource elements. The resource element utilization information includes utilization information for a subset of resource elements out of a plurality of resource elements, the subset of resource elements corresponds to other resource elements of at least one other cell within a cooperating set, and the other resource elements are carrying specified signals. The mapping is based on the resource element utilization, and the mapping is performed by at least one cell within the cooperating set. | 11-08-2012 |
20120282964 | System and Method for Multi-Cell Access - A system and method for multi-cell access are provided. A method includes transmitting at least one control channel to a communications device. The at least one control channel includes control information, and the transmitting is performed by at least one cell in a subset of a cooperating set. The method also includes transmitting to the communications device based on control information transmitted to the communications device, or receiving from the communications device based on control information transmitted to the communications device. The transmitting is performed by at least one other cell in the cooperating set, or the receiving is performed by the at least one other cell in the cooperating set. | 11-08-2012 |
20130003668 | METHOD AND SYSTEM FOR TRANSMISSION AND RECEPTION OF SIGNALS AND RELATED METHOD OF SIGNALING - A base station (e.g., an evolved Node B) determines whether the physical broadcast channel (PBCH), reference signals (SCH) and common reference signals (CRS) are transmitted (or awaiting transmission) on a secondary component carrier (Scell) with the cell. The determination information is transmitted to a user equipment (UE) to inform the UE that the Scell transmissions do not include PBCH/SCH/CRS. As a result, the resource elements (REs) normally used to carry system information in the PBCH/SCH/CRS can be dynamically assigned (or reassigned) to the data channel. In this manner, the physical downlink shared channel (PBSCH) bandwidth can be increased by utilizing those resource elements that are normally reserved/assigned to the PBCH/SCH/CRS. | 01-03-2013 |
20130044678 | System and Method for Reducing Interference - A system and method for reducing interference are provided. A method for communications controller operations in a multi-carrier system includes generating information for a broadcast channel, preparing the information for transmission, selecting a location for an unoccupied subcarrier from a plurality of available locations, and placing the prepared information into a plurality of contiguous subcarriers, where the plurality of contiguous subcarriers includes the unoccupied subcarrier and a plurality of other subcarriers. The method also includes transmitting the plurality of contiguous subcarriers. | 02-21-2013 |
20130070689 | Method and Apparatus for Uplink Control Signaling - A system, a device and a method for allocating A/N resources are disclosed. In one embodiment the method comprises indicating an acknowledgement or negative acknowledgement (A/N) channel of a user equipment in a first cell, the A/N channel according to a first value and a second value, wherein the first value is determined by a physical layer parameter, wherein the second value is indicated by a high layer signaling, and wherein the A/N channel corresponds to a downlink transmission of a second cell. | 03-21-2013 |
20130088986 | System and Method for Coordinated Transmission - A method for operating a first communications controller serving a first device includes receiving channel information for a communications channel between the first communication controller and a second device served by a second communications controller, and determining a time-frequency resource, a duration, and a precoding constraint in accordance with the received channel information, the time-frequency resource, the duration, and the precoding constraint for use with a transmission of the first communications controller occurring within the time-frequency resource for the duration to reduce interference to a third device served by the second communications controller. The method also includes transmitting coordinated transmission information about the time-frequency resource, the duration, and the precoding constraint, to the second communication controller, and transmitting to the first device in accordance with the precoding constraint, the time-frequency resource, and the duration. | 04-11-2013 |
20130114496 | System and Method for Interference Management in Cellular Networks - Notifying served user equipments (UEs) of the presence or absence of cell-specific reference signal (CRS) symbols transmitted by neighboring base stations in the physical downlink shared channel (PDSCH) region of a subframe can be achieved through various of signaling techniques. The served UE may be notified by communicating a one or multi-bit indicator in a physical layer signaling channel of the serving cell, such as the physical downlink control channel (PDCCH) of the subframe. Alternatively, the served UE may be notified through higher layer signaling. | 05-09-2013 |
20130194956 | System and Method for Common Control Channels in a Communications System - A method for operating a communications controller includes selecting a search space configuration out of a set of candidate search space configurations for a user equipment served by the communications controller, wherein the search space configuration specifies one or more search spaces to be monitored out of a set of search spaces, and signaling the selected search space configuration to the user equipment. | 08-01-2013 |
20130196675 | System and Method for Wireless Communications Measurements and CSI Feedback - Measurements and Channel State Information (CSI) feedback are configured using communications between a network and user equipment (UE). The communications includes a first signaling from a network component to the UE indicating one or more reference signal (RS) resource configurations, a second signaling indicating one or more interference measurement (IM) resource configurations, and a third signaling indicating a CSI report configuration, wherein the CSI report configuration indicates a subset of the one or more RS resource configurations and a subset of the one or more IM resource configurations. The UE establishes a RS based measurement according to the subset of the one or more RS resource configurations and an IM according to the subset of the one or more IM resource configurations. The UE then generates and sends to the network a CSI report in accordance with the CSI report configuration and using the RS based measurement and the IM. | 08-01-2013 |
20130242787 | System and Method for Measurement Report Triggering Configuration for Multiple Point Communication Measurement Set Management - A method embodiment includes configuring, by a network device, a multiple point communication measurement reporting scheme. The multiple point communication measurement reporting scheme includes a multiple point communication measurement set, a List A, a List B, and measurement report triggering events. The measurement report triggering events includes a first event wherein a measurement result of an element in List A becomes better than a threshold, a second event wherein a measurement result of an element in List A becomes better than a measurement result of an element in List B by at least an offset, a third event wherein a measurement result of an element in List B becomes worse than a threshold, and/or a fourth event wherein a measurement result of an element in List B becomes worse than a measurement result of an element in List A by at least an offset. | 09-19-2013 |
20130242902 | Systems and Methods for Reference Signals and CSI Feedback - System and method embodiments are provided for signaling reference signals and Channel State Information (CSI) feedback for wireless communications. An embodiment method implemented by a user equipment (UE) for wireless communications measurements and CSI feedback includes receiving, from a network, at least one of a first index that indicates a corresponding non-zero-power CSI reference signal (CSI-RS) resource, a second index that indicates a corresponding zero-power CSI-RS resource, a third index that indicates a corresponding CSI-RS resource for interference measurement, and a fourth index that indicates a corresponding channel quality indicator (CQI) report configuration. The method also includes receiving, from the network, at least one of a fifth index that indicates a corresponding periodic CQI report in accordance with the CQI report configuration indicated by the fourth index, and a sixth index that indicates a corresponding aperiodic CQI report in accordance with the CQI report configuration indicated by the fourth index. | 09-19-2013 |
20140029584 | System and Method for Multiple Point Communications - A method for multiple point communications includes configuring a set of first communications system resources to form a plurality of first communications system resource groups, each first communications system resource group including a plurality of channels, and configuring a set of second communications system resources for each one of the plurality of first communications system resource groups, the set of second communications system resources used to convey a feedback transmission. The method also includes signaling information about the plurality of first communications system resource groups to a first user equipment, and signaling information about the sets of second communications system resources associated with the plurality of first communications system resource groups to the first user equipment. | 01-30-2014 |
20140066113 | Bi-Directional Training in Dual Networks System - A method and apparatus for bi-direction training in D2D/cellular networks. An embodiment method includes sending training symbols to sense interference from the cellular UEs, calculating an interference subspace from the cellular UE to each of the D2D UEs, calculating an orthogonal projection matrix based on the interference subspace calculated, and iteratively updating receive filters through forward training and transmit beamformers through backward training after the orthogonal projection matrix is calculated to align the D2D UEs. In an embodiment, training symbols are sent to sense interference from the cellular UE. | 03-06-2014 |
20140086176 | System and Method for Random Access in Heterogeneous Communications Systems - A method for operating a user equipment includes receiving a set of first random access channel (RACH) parameters associated with a first group of identifiers, and wherein identifiers in the first group of identifiers are used for generating pseudo-random sequences, and performing a random access procedure in accordance with the set of first RACH parameters and the first group of identifiers. | 03-27-2014 |
20140112259 | Signaling for Random Access in Time Division Duplexed (TDD) Systems with Traffic Adaptation - A next-generation base station can update an uplink-downlink (UL/DL) configuration of a cell more frequently than legacy user equipments (UEs) are configured to recognize UL/DL updates while preventing non-compliant uplink transmissions in downlink subframes. For instance, a next-generation base station can restrict updates to the uplink-downlink configuration such that uplink timeslots previously allocated for random access channel (RACH) transmission opportunities by legacy UEs remain configured for uplink transmission. Alternatively, the next-generation base station can restrict the allocation of RACH transmission opportunities of legacy UEs to timeslots that are statically configured for uplink transmission. Notably, such a restriction may be selectively applied to legacy UEs, so as to not limit the performance of next-generation UEs. | 04-24-2014 |
20140133333 | Systems and Methods for Adaptation and Reconfiguration in a Wireless Network - An embodiment method for adaptation and reconfiguration in a wireless network includes base stations coordinating and setting aside a set of time-frequency resources for probing purposes, the base stations coordinating a set of probing transmissions and timings to be used to synchronize base stations/UEs actions, the base stations signaling the resources and timings to UEs, the base stations performing coordinated operations on the resources according to the timings, the base stations receiving feedback reports from UEs based on UE measurements on the signaled resources according to the signaled timings, and the base stations further coordinating the operations for further probing or to apply probing transmissions on broader time-frequency resources. | 05-15-2014 |
20140269313 | System and Method for Adaptation in a Wireless Communications System - A method for adapting communications system topology includes receiving, by an adaptation device, first signal plus interference to noise ratio (SINR) values from user equipments in a communications system, the first SINR values associated with a transmission configuration as configured by the communications system, and adapting, by the adaptation device, a topology of the communications system in accordance with the first SINR values received from the user equipments already attached to the communications system. | 09-18-2014 |
20140314000 | Systems and Methods for Adaptive Transmissions in Wireless Network - A method for cell adaptation includes receiving, by a user equipment (UE), one or more transmission parameters for a transition reference signal (TRS). One or more cells is transitioned between a reduced activity mode and an active transmission and reception mode in accordance with the TRS. The method further includes the UE determining whether or not to transmit the TRS in accordance with one or more TRS transmission criteria, and the UE transmitting the TRS in accordance with the one or more transmission parameters. | 10-23-2014 |
20140328277 | System and Method for Multi-Cell Access - A system and method for multi-cell access are provided. A method includes transmitting at least one control channel to a communications device. The at least one control channel includes control information, and the transmitting is performed by at least one cell in a subset of a cooperating set. The method also includes transmitting to the communications device based on control information transmitted to the communications device, or receiving from the communications device based on control information transmitted to the communications device. The transmitting is performed by at least one other cell in the cooperating set, or the receiving is performed by the at least one other cell in the cooperating set. | 11-06-2014 |
20140334320 | Systems and Methods for Network Adaptation Support in Wireless Network - Embodiments are provided for implementing network adaptation schemes, including small cell on/off adaptation and transmission power control. In an embodiment method for supporting network adaptation, a network component receives a discovery reference signal (DRS) from a network controller that is in a switch-off transmission mode. The network component then performs measurements according to the DRS, and reports the measurements to a network associated with the network controller. In return, the network component receives a radio resource control (RRC) signaling from the network. The RRC signaling includes configuration information allowing a connection between the network component and the network controller. The network component then connects with the network controller in accordance with the configuration information. | 11-13-2014 |
20140334354 | System and Method for TDD Configuration for D2D Open Discovery - Embodiments are provided to support device-to-device (D2D) communications in a time-division duplexing (TDD) communications system, and ensure that D2D discovery signals are transmitted by user devices on an uplink subframe when there is a TDD frame configuration change. In an embodiment, a user device receives form the network a TDD frame configuration selected from a set of available TDD frame configurations according to the TDD configuration. The device further receives a D2D discovery configuration for a discovery time interval. The user device then allocates a transmission resource a D2D discovery signal within the discovery time interval according to the D2D discovery configuration. The user device is also configured to receive from another device a second D2D discovery signal during the discovery time interval in accordance with the TDD configuration and the D2D discovery configuration. | 11-13-2014 |
20140334436 | Control Channel Transmission and Reception Method and System - In an embodiment method, a first central controller of a wireless system selects a first common reference signal (“CRS”) pattern for muting on a first type of control channel by the first central controller, wherein the first type of control channel is formed with resource elements (“REs”), and selects a second CRS pattern for muting on a first data channel by the first central controller, where the first CRS pattern and the second CRS pattern are separately configured. The central controller identifies a set of subframes including the first type of control channel, where the set of subframes has REs that overlap the first CRS pattern for muting, and mutes the overlapping REs in the first type of control channel when the set of subframes are not multicast broadcast single frequency network subframes, and frequency-division multiplexes the first type of control channel with the first data channel. | 11-13-2014 |
20150016411 | System and Method for Inter-Cell Interference Coordination - A system and method for inter-cell interference coordination is provided. A method for controller operation includes receiving interferer information from a device served by the controller, scheduling a cell edge device based on the received interferer information, and reporting usage information of the subset of resources to neighboring controllers. The cell edge device operates in a periphery of a coverage area of the controller, and the cell edge device is scheduled to a subset of resources. The method also includes from each neighboring controller, receiving neighboring usage information of a neighboring subset of resources reserved for cell edge devices served by the neighboring controller. The method further includes scheduling a cell center device based on the received usage information from the neighboring controllers, and transmitting to scheduled devices over their respective scheduled resources. Cell center device is scheduled to resources not in the subset of resources. | 01-15-2015 |
20150078190 | DEVICE AND METHOD OF ENHANCING DOWNLINK UE-SPECIFIC DEMODULATION REFERENCE SIGNAL TO FACILITATE INTER-CELL INTERFERENCE CANCELLATION AND SUPPRESSION - Various devices and methods are provided that use enhanced downlink demodulation reference signals (DMRS) to facilitate inter-cell interference cancellation and suppression. Coordinated configuration of DMRS port assignments for transmission from cells in a group of neighboring cells is provided. Each cell's physical cell identification (PCID) is mapped with its corresponding assigned antenna port(s). | 03-19-2015 |