Patent application number | Description | Published |
20090168687 | TECHNIQUES FOR OPTIMAL LOCATION AND CONFIGURATION OF INFRASTRUCTURE RELAY NODES IN WIRELESS NETWORKS - An embodiment of the present invention provides a method, comprising optimizing the location and configuration of relay stations in a wireless network that includes at least one base station and at least one relay station by taking into account at least one or more of the following: the distinct antenna heights of said at least one base station and said at least one relay station; the data dependency between said at least one relay station and said at least one base station; the service outage of said wireless network; and the network throughput of said wireless network. | 07-02-2009 |
20100091894 | CHANNEL QUALITY ASSESSMENT METHOD IN OFDM(A) COMMUNICATIONS AND A CORRESPONDING SYSTEM - A method and apparatus for determining a channel quality indicator (CQI) to be used in link adaptation for Orthogonal Frequency Division Multiplexing (OFDM) communications. In one embodiment of the invention, the CQI is based on a set of capacity values for subcarrier components in a received OFDM signal. In another embodiment, a minimum value from a running average of the set of capacity values is used to determine the CQI. | 04-15-2010 |
20100091895 | INTERFERING BASE STATIONS RECOGNITION METHOD AND SCHEME FOR 802.16E SYSTEMS - A method and apparatus for identifying the preamble for an unknown signal received in Orthogonal Frequency Division Multiplexing (OFDM) communications. In one embodiment, the preamble is identified from a set of known preambles using a detection statistic based on a generalized likelihood ratio (GLR) method. In another embodiment, the GLR detection statistic relies on a priori assumptions about a transfer function represented by the received signal. | 04-15-2010 |
20110002263 | BEAMFORMING USING BASE AND DIFFERENTIAL CODEBOOKS - Embodiments of methods and apparatus for determining and/or quantizing a beamforming matrix are disclosed. In some embodiments, the determining and/or quantizing of the beamforming matrix may include the use of a base codebook and a differential codebook. Additional variants and embodiments are also disclosed. | 01-06-2011 |
20110002280 | MIDAMBLE FOR WIRELESS NETWORKS - Briefly, in accordance with one or more embodiments, a midamble for a downlink subframe is generated by rotating an order of midamble tones per antenna between two or more subbands. A Golay sequence may be utilized in the modulation of one or more subcarriers of the midamble via a reuse-3 arrangement. Alternatively, a reuse-1 arrangement may be applied to the midamble. | 01-06-2011 |
20120082082 | FRAMEWORK FOR COORDINATED MULTIPOINT TRANSMISSION BASED ON A MULTICELL MAC/RRC DESIGN - Briefly, in accordance with one or more embodiments, two or more cells are configured to perform coordinated multipoint (CoMP) transmission for one or more user equipment devices with a common media access control (MAC) or a common radio resource control (RRC). Measurement information is received from the one or more user equipment devices. One or more of the cells may be deactivated, or one or more additional cells may be activated for coordinated multipoint transmission based at least in part on the measurement information. | 04-05-2012 |
20120114028 | COORDINATED MULTI-POINT TRANSMISSION USING INTERFERENCE FEEDBACK - Embodiments of methods and apparatus for wirelessly receiving, by a user equipment (UE), interference signal from a first enhanced Node B (eNB) while the UE is communicating with a second eNB; generating interference feedback information that is associated with an interference channel between the first eNB and the UE; and transmitting the interference feedback information to the first eNB via the second eNB are disclosed. Additional variants and embodiments are also disclosed. | 05-10-2012 |
20120163280 | PHYSICAL LAYER COMMUNICATION PROTOCOL FOR USE IN WIRELESS NETWORKS WITH RELAYS - In some embodiments, a relay station comprises a baseband processor, an RF modulator/demodulator coupled to the baseband processor to modulate/demodulate data for communication within a predetermined frequency range, and a control module to implement a femto transmission-free zone in at least one of a time domain or a frequency domain and in which the relay station does not transmit data. Other embodiments may be described. | 06-28-2012 |
20120243638 | SYSTEMS FOR COMMUNICATING USING MULTIPLE FREQUENCY BANDS IN A WIRELESS NETWORK - Communication signals using a first and a second frequency band in a wireless network is described herein. The first frequency band may be associated with a first beamwidth while the second frequency band may be associated with a second beamwidth. An apparatus may include receiver circuitry arranged to receive first signals in a first frequency band associated with a first beamwidth and second signals in a second frequency band associated with a second beamwidth, the first signals comprising a frame synchronization parameter and the second signals comprising frame alignment signals. The apparatus may further include processor circuitry coupled to the receiver circuitry, the processor circuitry arranged to activate or deactivate the receiver circuitry to receive the frame alignment signals based on the frame synchronization parameter. Other embodiments may be described and/or claimed. | 09-27-2012 |
20120257575 | CO-PHASING OF TRANSMISSIONS FROM MULTIPLE INFRASTRUCTURE NODES - Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes. | 10-11-2012 |
20130100898 | BEAMFORMING USING BASE AND DIFFERENTIAL CODEBOOKS - Embodiments of methods and apparatus for determining and/or quantizing a beamforming matrix are disclosed. In some embodiments, the determining and/or quantizing of the beamforming matrix may include the use of a base codebook and a differential codebook. Additional variants and embodiments are also disclosed. | 04-25-2013 |
20130114524 | DYNAMIC POINT SELECTION VIA A COORDINATING SET OF BASE STATIONS - Examples are disclosed for coordinating transmission of one or more protocol data units to a wireless device from a coordinating set of base stations. In some examples, coordinating may include exchanging information via a backhaul communication channel coupling or interconnecting the base stations included in the coordinating set of base stations. For these examples, one or more protocol data units may be transmitted to the wireless device from the coordinating set of base stations via a plurality of separate communication links based on the exchanged information. Other examples are described and claimed. | 05-09-2013 |
20130115985 | BEAMFORMING COORDINATION IN HETEROGENEOUS NETWORKS - Technology for spatial domain beamforming coordination at a low power node (LPN) in a heterogeneous network (HetNet) is disclosed. One method can include the LPN collecting spatial feedback information of macro node interference from a plurality of wireless devices in a LPN cell. The LPN can compile the spatial feedback information into a spatial feedback report. The LPN can send the spatial feedback report from the LPN to a macro node for calculating a beamforming vector to reduce the macro node interference for the plurality of wireless devices in the LPN cell. | 05-09-2013 |
20130115999 | Techniques for Mitigating Interference Associated with Downlink Transmissions from a Base Station - Examples are disclosed for causing one or more subframes to be transmitted from a base station for a wireless network based on beamforming or transmission power characteristics. In some examples, an interference report may be received at a base station via a backhaul communication link. The interference report may indicate measured interference from the base station as measured at one or more wireless devices. The base station may transmit subsequent subframes in a manner to mitigate the previously reported interference. Other examples are described and claimed. | 05-09-2013 |
20130163554 | DEVICE, SYSTEM AND METHOD OF MULTI-USER MULTI-INPUT-MULTI-OUTPUT WIRELESS COMMUNICATION - Device, system, and method of multi-user multi-input-multi-output (MIMO) wireless communication. In some embodiments, a wireless communication device ( | 06-27-2013 |
20130194943 | EVOLVED NODE B AND METHOD FOR COHERENT COORDINATED MULTIPOINT TRANSMISSION WITH PER CSI-RS FEEDBACK - An evolved Node B (eNB) and method for coherent coordinated multipoint transmission with per CSI-RS feedback are generally described herein. The eNB may configure a first cooperating point and a second cooperating point to jointly transmit a multi-node channel-state information (CSI) reference signal (RS) (CSI-RS) in predetermined resource elements of a resource block. The eNB may receive CSI reports as feedback from user equipment (UE). The CSI reports may include a precoding matrix indicator (PMI) indicating relative phase information between the cooperating points based on the multi-node CSI-RS. The CSI reports for the multi-node CSI-RS may be restricted to a PMI of rank-1. The eNB may configure the cooperating points for a coherent joint transmission to the UE based at least on the relative phase information. The coherent joint transmission may also be jointly beamformed based on single-node PMIs. | 08-01-2013 |
20130196699 | COORDINATED MULTIPOINT CONFIGURATION BASED ON CHANNEL STATE INFORMATION REFERENCE SIGNALS - Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for configuring coordinated multipoint (CoMP) for network devices. In various embodiments, configuration of the CoMP may be based on channel state information reference signals. Other embodiments may be described and/or claimed. | 08-01-2013 |
20130243118 | MOBILE DEVICE TRANSMITTER AND METHODS FOR TRANSMITTING SIGNALS IN DIFFERENT SIGNAL DIMENSIONS FOR 3GPP LTE - Embodiments of a mobile device transmitter and methods for transmitting signals in different signal dimensions are generally disclosed herein. The mobile device transmitter comprises a mapper to map a block of two or more input modulation symbols to different signal dimensions comprising two or more spatial dimensions, and linear transform circuitry to perform a linear transform on the block of mapped input modulation symbols to generate a block of preceded complex-valued output symbols such that each output symbol carries some information of more than one input modulation symbol. The mobile device also comprises transmitter circuitry to generate time-domain signals from the blocks of precoded complex-valued output symbols for each of the spatial dimensions for transmission using the two or more antennas. The precoded complex-valued output symbols are mapped to different signal dimensions comprising at least different frequency dimensions prior to transmission. | 09-19-2013 |
20130244709 | INTERFERENCE MITIGATION IN THE CONTEXT OF HETEROGENEOUS NETWORKS WITH COORDINATED TRANSMISSION POINTS WITH A COMMON TRANSMISSION POINT IDENTITY - Technology is discussed for extending frequency and time based approaches, such as Inter-Cell Interference Coordination (ICIC) and enhanced ICIC (eICIC), to interference mitigation for clusters within a Wireless Wide Area Network (WWAN) of transmission points with a common transmission point identity. Multiple transmission power messages correlated to different transmission point characteristics can be configured among multiple transmission points sharing the same transmission point identity. These multiple transmission power messages can be used to coordinate transmissions from adjacent transmission points on differing frequencies. Additionally, new sets of reference signals can be configured to correlate to different transmission point characteristics. These new, correlated reference signals can be used to decouple measurements used to provide feedback to one set of transmission points from reference signals transmitted by another set of transmission points with the same transmission point identity. | 09-19-2013 |
20130272196 | INTERFERENCE NOTIFICATION IN DEVICE-TO-DEVICE COMMUNICATION - Systems and techniques for wireless device-to-device (D2D) communication are provided herein. A D2D group identifier may be included in wireless transmissions within D2D groups. D2D interference mitigation processes may be initiated when a D2D group identifier is detected by a wireless device outside the D2D group. | 10-17-2013 |
20130272262 | MULTI-ACCESS SCHEME AND SIGNAL STRUCTURE FOR D2D COMMUNICATIONS - A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described. | 10-17-2013 |
20130286867 | SIGNAL INTERFERENCE MEASUREMENTS IN A WIRELESS COMMUNICATION NETWORK - Embodiments of the present disclosure describe techniques and configurations for handling interference measurements in a wireless communication network. An apparatus may include computer-readable media having instructions and processors coupled with the computer-readable media and configured to execute the instructions to identify, for a serving eNB, a neighboring eNB for which signal interference measurements are to be performed by one or more wireless devices served by the serving eNB, and request that the neighboring eNB transmit typical interference signals within data units which are configured for, and may or may not have, a scheduled physical downlink shared channel transmission. The wireless devices may be configured to perform the signal interference measurements based at least in part on the typical interference signals, which may include non-zero-power signals or zero-power signals. Other embodiments may be described and claimed. | 10-31-2013 |
20130286997 | WIRELESS COMMUNICATION SYSYTEM WITH COMMON CELL ID - Briefly, in accordance with one or more embodiments, a conventional physical downlink control channel (PDCCH) is transmitted in a first region of a physical downlink control channel structure utilized by a remote radio head that has been assigned a cell identifier that is common to one or more other remote radio heads within the cell, and an enhanced physical downlink control channel (ePDCCH) is transmitted in a second region of the physical downlink control channel structure. | 10-31-2013 |
20130288728 | CO-PHASING OF TRANSMISSIONS FROM MULTIPLE INFRASTRUCTURE NODES - Briefly, in accordance with one or more embodiments, mobile station or user equipment receives pilot signals from two or more infrastructure nodes in a distributed antenna system, and calculates phase or timing information, or combinations thereof, from the pilot signals. The mobile station feeds back the phase or timing information, or combinations thereof, to the infrastructure nodes, and then receives one or more subsequent transmissions from the infrastructure nodes with phase shift or timing adjustments, or combinations thereof, calculated by the infrastructure nodes and applied to the spatial streams transmitted by the infrastructure nodes. | 10-31-2013 |
20130294390 | SYSTEM AND METHOD OF UPLINK POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM - An apparatus may include a transceiver operable to receive a downlink message from a base station for a serving cell, the downlink message allocating a set of control parameters. The apparatus may also include a processor circuit communicatively coupled to the transceiver and an uplink power control module operable on the processor circuit to read the set of control parameters, and apply a signal-to-noise-and-interference (SINR) parameter based on the received set of control parameters to determine physical uplink shared channel (PUSCH) power to be applied for a PUSCH transmission. Other embodiments are disclosed and claimed. | 11-07-2013 |
20130301548 | SIGNALING FOR DOWNLINK COORDINATED MULTIPOINT IN A WIRELESS COMMUNICATION SYSTEM - Embodiments herein describe apparatuses, systems, and methods for signaling to support downlink coordinated multipoint (CoMP) communications with a user equipment (UE) in a wireless communication network. In embodiments, the UE may be configured with a plurality of channel state information (CSI) processes (e.g., via radio resource control (RRC) signaling) to use for providing CSI feedback to an evolved Node B (eNB) to support downlink CoMP communications. The UE may be configured with a plurality of sets of CSI processes. The UE may further receive a downlink control information (DCI) message from the eNB that indicates one of the configured sets of CSI processes on which the UE is to provide CSI feedback to the UE. The UE may generate the CSI feedback for the indicated set of CSI processes, and transmit the CSI feedback to the eNB in a CSI report. | 11-14-2013 |
20130303167 | COORDINATED DYNAMIC POINT SELECTION (DPS) WITH CELL RANGE EXPANSION IN A COORDINATED MULTIPOINT (CoMP) SYSTEM - Technology for mitigating edge effect interference in a Coordinated MultiPoint (CoMP) system having multiple CoMP clusters is disclosed. In an example, a method can include a macro node transmitting a cell range expansion request to user equipments (UEs) within a cell. A CoMP cluster for nodes within the cell that includes UEs operating with the cell range expansion can be generated. Blanked resources between a plurality of macro nodes for the CoMP clusters in the CoMP system can be coordinated using a muting preference including a blanked resource. | 11-14-2013 |
20130322273 | MEASUREMENT OF NODES IN COORDINATED MULTIPOINT (CoMP) SYSTEMS - Technology for enabling radio resource management (RRM) measurements in coordinated multi-point (CoMP) transmission and reception is disclosed. One method comprises sending, from an evolved node B (eNB) to a user equipment (UE), an information element (IE) containing a list of measurement objects that define configurations of channel state information reference signal (CSI-RS) based RRM measurements. The eNB can analyze the CSI-RS based RRM measurements in a CoMP Resource Management (CRM) Set, wherein each CSI-RS based RRM measurement corresponds to a transmission point in a set of transmission points which may be used for downlink transmissions to the UE. The eNB can select a CoMP Measurement Set based on the CSI-RS based RRM measurements reported by the UE, comprising at least one of the set of transmission points for which fast channel state information (CSI) feedback will be reported to the eNB from the UE. | 12-05-2013 |
20130336224 | DISTRIBUTED ANTENNA SYSTEM AND METHOD FOR ENHANCED POSITIONING - Embodiments of a distributed antenna system (DAS) and method for enhanced positioning in a wireless network are generally described herein. In some embodiments, an enhanced Node-B (eNB) operates as part of a DAS that includes one or more nodes having the same cell ID as the eNB. The eNB is to transmit a UE-specific reference signal and configure one or more of the other nodes of the cell to transmit UE-specific reference signals that are distinguishable from each other and from the UE-specific reference signal that is transmitted by the eNB. The eNB may receive location estimate information from user equipment (UE) that is determined at least in part from the UE-specific reference signals. The eNB may also configure the nodes to perform cooperative OFDMA transmission techniques for the UEs operating in the cell. | 12-19-2013 |
20130343317 | SIGNALING FOR CONFIGURATION OF DOWNLINK COORDINATED MULTIPOINT COMMUNICATIONS - Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for configuration of downlink coordinated multi-point (CoMP) communications in a wireless communication network. A user equipment (UE) may receive channel state information (CSI) reference signal (RS) parameters, from an evolved Node B (eNB), for individual transmission points of a coordinated multi-point (CoMP) Measurement Set including a plurality of transmission points. The UE may generate CSI-RS feedback information for the individual transmission points of the CoMP Measurement Set, and may transmit the generated CSI-RS feedback information for one or more of the individual transmission points to the eNB. The UE may receive a transmission from the eNB updating the individual transmission points included in the CoMP Measurement Set. | 12-26-2013 |
20140003240 | SUPPORTING MEASURMENTS AND FEEDBACK FOR 3D MIMO WITH DATA TRANSMISSION OPTIMIZATION | 01-02-2014 |
20140003270 | SUPPORT FOR ASYNCHRONOUS TIME DIVISION DUPLEXING IN ADJACENT CELLS OF A WIRELESS COMMUNICATION SYSTEM | 01-02-2014 |
20140003312 | WAKE-UP FUNCTIONALITY FOR AN LTE ENODEB | 01-02-2014 |
20140022988 | USER EQUIPMENT AND METHOD FOR ANTENNA PORT QUASI CO-LOCATION SIGNALING IN COORDINATED MULTI-POINT OPERATIONS - User Equipment (UE) and methods for antenna port quasi co-location signaling in coordinated multi-point (CoMP) operations are generally described herein. In some embodiments, one or more downlink channels are at least partially offloaded from a serving Evolved Node-B (eNB) to one or more neighbor eNBs. The UE may receive signaling from the serving eNB to indicate a reference signal of a neighbor eNB to use for estimation of one or more large-scale physical-layer parameters associated with the one or more downlink channels provided by one of more of the neighbor eNB. The UE may estimate the one or more large-scale physical-layer parameters based on receipt of the indicated reference signal from the neighbor and serving eNBs. The UE may also apply the estimated one or more large-scale physical-layer parameters for processing the one or more downlink channels from the neighbor and serving eNBs. | 01-23-2014 |
20140029684 | METHOD AND APPARATUS FOR FEEDBACK IN 3D MIMO WIRELESS SYSTEMS - Systems and methods provide channel state information feedback in a multiple-input multiple-output (MIMO) system. A method quantizes a pre-coding matrix indicator (PMI) and feeds it back from a user equipment (UE) to an evolved Node B (eNodeB). The method may use codebooks for vector quantization of optimal horizontal direction and a scalar quantizer to quantize an optimal vertical direction from the eNodeB to a selected UE. | 01-30-2014 |
20140036664 | PERIODIC CHANNEL STATE INFORMATION REPORTING FOR COORDINATED MULTIPOINT (CoMP) SYSTEMS - Technology for periodic channel state information (CSI) reporting in a coordinated multipoint (CoMP) scenario is disclosed. One method can include a user equipment (UE) generating a plurality of CSI reports for transmission in a subframe for a plurality of CSI processes. Each CSI report can correspond to a CSI process with a CSIProcessIndex. The UE can drop CSI reports corresponding to CSI processes except a CSI process with a lowest CSIProcessIndex. The UE can transmit at least one CSI report for the CSI process to an evolved Node B (eNB). | 02-06-2014 |
20140036704 | PERIODIC CHANNEL STATE INFORMATION REPORTING FOR COORDINATED MULTIPOINT (CoMP) SYSTEMS - Technology for periodic channel state information (CSI) reporting from a user equipment (UE) configured for carrier aggregation is disclosed. One method can include the UE generating a plurality of periodic CSI reports for transmission in a subframe for a plurality of CSI processes, wherein each periodic CSI report corresponds to a CSI process with a CSI process index. A single periodic CSI report from the plurality of periodic CSI reports may be selected to multiplex with a hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback. The periodic CSI report multiplex with the HARQ-ACK feedback and any scheduling request (SR) may be determined to have a bit size less than or equal to a physical uplink control channel (PUCCH) format 3 maximum payload bit size. The periodic CSI report multiplexed with the HARQ-ACK feedback and any SR may be transmitted to a serving cell. | 02-06-2014 |
20140036796 | REFERENCE SIGNAL CONFIGURATION FOR COORDINATED MULTIPOINT - Coordinated Multipoint (CoMP) involves multiple transmission points or cells coordinating their individual transmissions so that a target user equipment (LTE) experiences enhanced signal reception and/or reduced interference. In order to optimally implement downlink CoMP, a serving cell needs to obtain channel state information (CSI) for the downlink channels from the multiple transmission points to the UE. This disclosure deals with radio resource control (RRC) signaling for configuring the UE to obtain and report CSI for those downlink channels. | 02-06-2014 |
20140038623 | Techniques for Sending or Receiving Channel State Information Reports Associated with a Coordinated Multi-Point Scheme - Examples are disclosed for sending or receiving channel state information (CSI) reports associated with coordinated multi-point (CoMP) schemes. The examples include user equipment (UE) constraining CSI feedback to one or more transmission points implementing a CoMP scheme with the UE. The examples also include a transmission point such as an evolved node B (eNB) triggering CSI feedback and receiving a CSI report in response to the trigger. The CSI report generated based on the UE constraining CSI feedback. Constraining CSI feedback may include the UE generating fewer CSI reports, reusing information between CSI reports or increasing an amount of time allowed for processing and generating CSI reports. Other examples are described and claimed. | 02-06-2014 |
20140044076 | SIGNALING FOR DOWNLINK COORDINATED MULTIPOINT IN A WIRELESS COMMUNICATION SYSTEM - Embodiments herein describe apparatuses, systems, and methods for signaling to support downlink coordinated multipoint (CoMP) communications with a user equipment (UE) in a wireless communication network. In embodiments, the UE may be configured with a plurality of channel state information (CSI) processes (e.g., via radio resource control (RRC) signaling) to use for providing CSI feedback to an evolved Node B (eNB) to support downlink CoMP communications. The UE may be configured with a plurality of sets of CSI processes. The UE may further receive a downlink control information (DCI) message from the eNB that indicates one of the configured sets of CSI processes on which the UE is to provide CSI feedback to the UE. The UE may generate the CSI feedback for the indicated set of CSI processes, and transmit the CSI feedback to the eNB in a CSI report. | 02-13-2014 |
20140057635 | POSITIONING-ASSISTED CELL SELECTION AND HANDOVER FOR LTE - A cell-selection and a cell re-selection process include a wireless device that receives a signal from at least one node of a wireless network. The received signal can be a reference signal, an uplink signal, or a downlink signal, or a combination thereof. Location information of the wireless device is determined based on the received signal and transmitted to the wireless network. Information is received from the wireless network that contains a list of candidate nodes to which the wireless device can connect to the wireless network. The list of candidate nodes comprises a list of macro cell nodes, low-power cell nodes, or a combination thereof. The wireless device searches through the information containing the list of candidate nodes to determine a node for a connection to the wireless network. | 02-27-2014 |
20140086221 | TIMING SYNCHRONIZATION FOR DOWNLINK (DL) TRANSMISSIONS IN COORDINATED MULTIPOINT (CoMP) SYSTEMS - Technology for adjusting a receiver timing of a wireless device in a Coordinated MultiPoint (CoMP) system is disclosed. One method can include the wireless device receiving a plurality of node specific reference signals (RSs) from a plurality of cooperating nodes in a coordination set of the CoMP system. The coordination set includes at least two cooperating nodes. The wireless device can estimate a composite received RS timing from a plurality of received RS timings generated from the plurality of node specific RSs. The received RS timings represent timings from the at least two cooperating nodes. The wireless device can adjust the receiver timing based on the composite received RS timing. A node specific RS can include a channel-state information reference signal (CSI-RS). | 03-27-2014 |
20140092787 | PERIODIC CHANNEL STATE INFORMATION REPORTING FOR TIME DIVISION DUPLEX (TDD) CARRIER AGGREGATION SYSTEMS - Technology for periodic channel state information (CSI) reporting is disclosed. One method can include a user equipment (UE) identifying a configured CSI reporting instance for a secondary cell to report the periodic CSI to a node based on a CSI reporting configuration of the secondary cell. The UE can determine that the configured CSI reporting instance of the secondary cell used to report the periodic CSI does not correspond with an uplink (UL) subframe of a primary cell. The UE can transmit the periodic CSI report for the secondary cell, to the node, using a physical uplink shared channel (PUSCH) on the secondary cell when the periodic CSI reporting instance for the secondary cell does not correspond with the UL subframe of the primary cell and an UL-SCH (Uplink Shared Channel) is available in a subframe that corresponds to the periodic CSI reporting instance of the secondary cell. | 04-03-2014 |
20140092829 | SYSTEMS AND METHODS FOR SEMI-PERSISTENT SCHEDULING OF WIRELESS COMMUNICATIONS - Methods, systems, and devices for transmission and reception of SPS communications are disclosed herein. User equipment (UE) is configured to receive, in a first subframe, a physical downlink control channel or enhanced physical downlink control channel (PDCCH/EPDCCH) corresponding to semi-persistent scheduling (SPS) activation. The PDCCH/EPDCCH conveys a value of nSCID. The UE configures, based on the SPS activation, a downlink (DL) assignment in a second subframe for receiving an SPS physical downlink shared channel (PDSCH) without a corresponding PDCCH/EPDCCH. The UE determines a reference signal sequence corresponding to the SPS PDSCH using n | 04-03-2014 |
20140092878 | METHOD OF ENHANCED INTERFERENCE MEASUREMENTS FOR CHANNEL STATE INFORMATION (CSI) FEEDBACK - Embodiments of providing enhanced interference measurements for CSI feedback are generally described herein. In some embodiments, CSI-IM resources are used by UE to perform interference measurements. The serving cell determines a hopping pattern for varying a position of the determined CSI-IM resources in subframes transmitted to the served UE. The determined CSI-IM resources and the determined CSI-IM resources hopping pattern are transmitted to the served UE. The serving node transmits a zero-power (ZP) CSI-RS. The serving node receives an interference measurement from the served UE based on CSI-IM and ZP CSI-RS provided to the served UE from the serving cell. Collisions between the CSI-IM of the serving node and CSI-IM of the non-serving nodes are minimized by the determined CSI-IM resources hopping pattern. | 04-03-2014 |
20140105109 | Joint Transmission in a Wireless Network - A system for receiving joint transmission wireless signals may include a transceiver to receive a plurality of colliding wireless signals. One of the wireless signals may include reference signal data while another of the wireless signals may include user data. The reference signal data may be combined with the user data into a superimposed signal. The reference signal data may be filtered out from the superimposed data, and the user data may be decoded. | 04-17-2014 |
20140112300 | PERIODIC CHANNEL STATE INFORMATION (CSI) REPORTING USING A PHYSICAL UPLINK CONTROL CHANNEL (PUCCH) - Technology for periodic channel state information (CSI) reporting using a physical uplink control channel (PUCCH) is disclosed. One method can include a user equipment (UE) generating a CSI report with a physical uplink control channel (PUCCH) first reporting type and a CSI report with a PUCCH second reporting type; and dropping a CSI report with the PUCCH first reporting type of a serving cell when the CSI report with the PUCCH first reporting type has a collision with the CSI report with PUCCH second reporting type of the serving cell. The PUCCH first reporting type can have a lower priority level than the PUCCH second reporting type. | 04-24-2014 |
20140148107 | Using Multiple Frequency Bands With Beamforming Assistance in a Wireless Network - A communication device communicates with other communication devices in a wireless network using a first and a second frequency band. In accordance with some embodiments, inter-band beamforming assistance may be provided by the lower frequency band. | 05-29-2014 |
20140185523 | ASSOCIATION BIASING FOR A HETEROGENEOUS NETWORK (HetNet) - A method for association biasing at a mobile device in a heterogeneous network (HetNet) is disclosed. The method can include the mobile device receiving coordination set information from a macro node in the HetNet. The coordination set information can include at least one low power node (LPN) identifier of at least one LPN. The mobile device can receive a request from the macro node to apply a specified reference signal (RS) biasing. The mobile device can apply the specified RS biasing to an LPN RS measurement derived from a LPN RS received from an LPN having an LPN identifier in the received coordination set information. The mobile device can associate the mobile device with the LPN when the LPN RS measurement with the specified RS biasing exceeds an association threshold. | 07-03-2014 |
20140198675 | CHANNEL STATE INFORMATION-REFERENCE SIGNAL PATTERNS FOR TIME DIVISION DUPLEX SYSTEMS IN LONG TERM EVOLUTION WIRELESS NETWORKS - A user equipment (UE) for time division duplex (TDD) communication through a wireless communication channel has a receiver to receive a channel state information reference signal (CSI-RS) subframe configuration value, a CSI-RS configuration value, and a CSI-RS; and circuitry to determine a subframe index corresponding to a temporal position of a special subframe including the CSI-RS; determine a CSI-RS pattern of one or more orthogonal frequency division modulation (OFDM) resource elements carrying the CSI-RS, the pattern being from among a group of CSI-RS patterns that include OF DM resource elements in OFDM symbols corresponding to a physical downlink control channel (PDCCH) region of a legacy LTE wireless communication channel; control the receiver to receive the special subframe carrying the CSI-RS during the temporal position and at the one or more OFDM resource elements of the CSI-RS pattern; and measure the wireless communication channel based on the CSI-RS. | 07-17-2014 |
20140198676 | FAST SMALL CELL DISCOVERY - Embodiments of circuitry to be included in a user equipment (“UE”) and an evolved Node B (“eNB”) are described. To accelerate the detection of one or more cells in a wireless network, a UE may perform Radio Resource Management (“RRM”) measurements based on one or more synchronization signals instead of based on a common reference signal (“CRS”). Alternatively, the UE may perform RRM measurements for a cell based on a CRS transmitted for the cell without synchronizing to the cell using one or more synchronization signals. The UE may report the RRM measurements to an cNB that is to serve the UE. | 07-17-2014 |
20140203969 | APPARATUS, SYSTEM AND METHOD OF STEERING AN ANTENNA ARRAY - Some demonstrative embodiments include apparatuses, devices systems and/or methods of steering an antenna array. For example, an apparatus may include a baseband processor including a plurality of baseband processing chains to process signals to be communicated via a plurality of antenna modules of an antenna array, wherein the baseband processing chains include a plurality of frequency domain delay modules, a frequency domain delay module of the delay modules is to apply a time delay to a signal to be communicated via an antenna module of the plurality of antenna modules. | 07-24-2014 |
20140204846 | APPARATUS, SYSTEM AND METHOD OF WIRELESS BACKHAUL AND ACCESS COMMUNICATION VIA A COMMON ANTENNA ARRAY - Some demonstrative embodiments include apparatuses, systems and/or methods of wireless backhaul and access communication via a common antenna array. For example, an apparatus may include a wireless communication unit to control an antenna array to form one or more first beams for communicating over one or more access links and to form one or more second beams for communicating over one or more backhaul links, the access links including wireless communication links between a wireless communication node and one or more mobile devices, and the backhaul links including wireless communication links between the wireless node and one or more other wireless communication nodes. | 07-24-2014 |
20140210666 | APPARATUS, SYSTEM AND METHOD OF WIRELESS COMMUNICATION VIA AN ANTENNA ARRAY - Some demonstrative embodiments include apparatuses, systems and/or methods of wireless communication via an antenna array. For example, an apparatus may include an antenna array including a plurality of antenna modules arranged along a first axis, an antenna module of the antenna modules including an antenna sub-array coupled to a Radio-Frequency (RF) chain, the antenna sub-array including a plurality of antenna elements arranged along a second axis, the second axis is perpendicular to the first axis, and the RF chain is to process RF signals communicated via the plurality of antenna elements. | 07-31-2014 |
20140219115 | SIGNALING FOR CONFIGURATION OF DOWNLINK COORDINATED MULTIPOINT COMMUNICATIONS - Embodiments of the present disclosure describe devices, methods, computer-readable media, and systems configurations for configuration of downlink coordinated multipoint (CoMP) communications in a wireless communication network. A user equipment (UE) may receive, from an evolved Node B (eNB), a radio resource control (RRC) transmission including channel state informations (CSI) reference signal (RS) parameters for a plurality of transmission points. The UE may subsequently receive a medium access control (MAC) control element (CE) including a plurality of index bits corresponding to one or more activated transmission points of the plurality of transmission points for which the feedback module is to generate CSI-RS feedback. The eNB may dynamically update the transmission points that are activated for CSI-RS feedback. The UE may receive another MAC CE from the eNB to notify the UE of the updated set of activated transmission points. | 08-07-2014 |
20140254504 | DOWN-SAMPLING OF CELL-SPECIFIC REFERENCE SIGNALS (CRS) FOR A NEW CARRIER TYPE (NCT) - Technology for selecting physical resource blocks (PRB) for cell-specific reference signal (CRS) transmission for a new carrier type (NCT) is disclosed. In an example, device operable in an evolved Node B (eNB) to select physical resource blocks (PRB) for cell-specific reference signal (CRS) transmission for a new carrier type (NCT) can include computer circuitry configured to: Determine a frequency bandwidth for the NCT; and select a CRS pattern of PRBs for a transmission of the CRS in the frequency bandwidth, wherein the frequency bandwidth includes PRBs with CRS and PRBs without CRS. | 09-11-2014 |
20140269459 | USER EQUIPMENT WITH REDUCED POWER CONSUMPTION OPERATIONAL MODES - A user equipment (UE) power-cycles UE transmission modem components to reduce overall UE power consumption. For example, multiple HARQ ACK/NACK feedback bits are aggregated for a predetermined number of consecutive DL subframes, and then the feedback is transmitted in a single dedicated UL subframe so that a transmitter and power amplifier may be temporarily turned off (State 3) to reduce power consumption in the UE. | 09-18-2014 |
20140269968 | METHOD AND APPARATUS USING A BASE CODEBOOK STRUCTURE FOR BEAMFORMING - Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed. | 09-18-2014 |
20140293890 | NETWORK ASSISTED INTERFERENCE CANCELLATION AND SUPPRESSION WITH RESPECT TO INTERFERING CONTROL CHANNEL TRANSMISSIONS - Embodiments of the present disclosure describe systems and methods for mitigating interference in wireless networks. Various embodiments may include signaling of control channel information associated with an interfering cell and utilization of the control channel information to mitigate interference. Other embodiments may be described and/or claimed. | 10-02-2014 |
20140301354 | VIRTUAL CARRIER SENSING MECHANISM FOR LONG TERM EVOLUTION (LTE) - Embodiments for providing virtual carrier sensing for LTE are generally described herein. In some embodiments, a first evolved Node B (eNB) sends a notification of subsequent DL transmission to a first UE in a downlink. In the uplink, the first UE sends a confirmation of the received DL notification. A second eNB overhears the confirmation, decodes it and extracts the information of the DL resources that the first eNB is planning to use. If the second eNB is not already transmitting in the indicated DL resources, the second eNB marks the indicated DL resources as busy and refrains from transmitting in those resources. The second eNB may then reschedule its transmission using alternative resources so that interference from the second eNB1 may be avoided. | 10-09-2014 |
20140355529 | SYSTEM AND METHOD OF MANAGING WIRELESS COMMUNICATIONS WITH MULTIPLE TRANSMISSION POINTS - An apparatus includes a processor a channel state information (CSI) module operative on the processor to evaluate channel state information for a multiplicity of transmission points and to allocate a selection of channel state information reference signals (CSI-RS) to an uplink sub-frame allotted for transmitting channel quality/precoding matrix index/rank indicator (CQI/PMI/RI) information to a transmission point. The apparatus may further include a wireless transceiver operative to transmit the selection of CSI-RS in the uplink sub-frame to the transmission point in a wireless network, and receive information from the transmission point in response to the CSI-RS and a digital display operative to present the information received from the transmission point. | 12-04-2014 |
20140357319 | BEAMFORMING SYSTEM AND METHOD FOR MODULAR PHASED ANTENNA ARRAY - Generally, this disclosure provides systems and methods for modular antenna array beamforming with controllable antenna module delay for improved beam steering accuracy. A system may include a plurality of antenna modules, each of the antenna modules comprising an array of antenna elements coupled to an RF beamforming circuit, the RF beamforming circuit to adjust phase shifts associated with the antenna elements to generate an antenna beam associated with the antenna module; a delay circuit coupled to each of the antenna modules; and a central beamforming module coupled to each of the delay circuits, the central beamforming module to control the antenna beam associated with each of the antenna modules and further to adjust signal delays associated with the delay circuits, wherein the arrays of antenna elements of the antenna modules combine to operate as a composite antenna beamforming array. | 12-04-2014 |
20140362745 | CENTRAL PROCESSING UNIT AND METHODS FOR SUPPORTING COORDINATED MULTIPOINT TRANSMISSION IN AN LTE NETWORK - Embodiments of a central processing unit and methods for supporting coordinated multi-point (CoMP) transmissions in a 3GPP LTE network with non-ideal backhaul links are generally described herein. In some embodiments, the CPU may be arranged for scheduling and assigning resources for subordinate enhanced node Bs (eNBs) over the backhaul links for CoMP transmissions. The scheduling may include an additional number of HARQ processes to compensate, at least in part, for backhaul link latency. | 12-11-2014 |
20140369244 | PERIODIC CHANNEL STATE INFORMATION REPORTING FOR TIME DIVISION DUPLEX (TDD) CARRIER AGGREGATION SYSTEMS - Technology for reporting periodic channel state information (CSI) is disclosed. One method can include determining a reporting period (N | 12-18-2014 |
20150029919 | TECHNIQUES FOR EFFICIENT SMALL CELL DISCOVERY - Techniques for efficient small cell discovery are described. In one embodiment, for example, an evolved node B (eNB) may comprise logic, at least a portion of which is in hardware, the logic to determine a discovery signal transmission schedule for a series of radio frames based on a discovery signal muting pattern specifying at least one discovery-muted radio frame among the series of radio frames, and a transceiver to transmit at least one primary synchronization signal (PSS) and at least one secondary synchronization signal (SSS) during the series of radio frames according to the discovery signal transmission schedule. Other embodiments are described and claimed. | 01-29-2015 |
20150029957 | UPLINK COMMUNICATION TECHNIQUES FOR NON-IDEAL BACKHAUL SCENARIOS - Uplink communication techniques for non-ideal backhaul scenarios are described. In one embodiment, for example, user equipment (UE) may comprise logic, at least a portion of which is in hardware, the logic to receive an uplink (UL) communication process configuration message identifying a configured UL communication process for the UE, the UL communication process configuration message comprising a cell identifier and one or more configuration information elements (IEs), each configuration IE comprising configuration information for UL communications on the part of the UE, the logic to send a UL message based on the configuration information comprised in at least one of the configuration IEs. Other embodiments are described and claimed. | 01-29-2015 |
20150043404 | USER EQUIPMENT REALLOCATION BETWEEN NODES - A technology for a power management module that is operable to reduce power consumption in a communications network. A resource availability of one or more evolved node B (eNode Bs) in the communications network can be determine to receive data traffic of a plurality of user equipment (UEs) in communication with a serving eNode B. A power consumption rate of the communications network can be calculated when the serving eNode B is placed in a power saving mode. The serving eNode B can be switched to a power savings mode when the resource availability of the one or more eNode Bs enables the plurality of UEs to be handed over from the serving eNode B to selected eNode Bs of the one or more eNode Bs. | 02-12-2015 |