Patent application number | Description | Published |
20100054175 | Wirless broadband systems with relay stations - In a wireless communications network using relay stations between the network controller and at least some of the subscriber stations, the total network throughput may be increased by using spatial multiplexing between the network controller and some relay stations. In networks with multiple tiers of relay stations, a relay station may dedicate some sub-channels to communicating directly with subscriber stations and dedicate other sub-channels to communicating with other downstream relay stations. | 03-04-2010 |
20110110338 | LOCATION DETERMINATION IN WIRELESS COMMUNICATION SYSTEMS - Briefly, in accordance with one or more embodiments, a mobile station receives a location beacon transmitted from multiple base stations based on a transmission plan for a predefined downlink location based services zone in the superframes of a signal frame structure. The transmission plan includes spreading transmissions of the location beacon that are unique to respective base stations. The mobile station identifies the base stations based on the respective location beacons and the transmission plan. The mobile station identifies a present location based on the location beacons and the identities of the base stations that from which the location beacons were received. | 05-12-2011 |
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 |
20130044683 | METHOD AND APPARATUS FOR DOWNLINK MULTIUSER MIMO TRANSMISSION IN A WIRELESS NETWORK - A base station transmits to a number of relay stations in a wireless network using a beamforming matrix. The beamforming matrix is generated by first obtaining a column vector from a beamforming matrix associated with each of the relay stations. An intermediate matrix is then generated using these column vectors. A zero-forcing procedure is then utilized to process the intermediate network to generate the final beamforming matrix. | 02-21-2013 |
20130114587 | NARROW BANDWIDTH DEVICE IN A BROADBAND NETWORK - Technology for communicating with a narrow bandwidth wireless device in a broadband network is disclosed. One method can include the wireless device retrieving at least one of secondary narrow bandwidth device region (NBDR) configuration information or primary NBDR configuration information from a primary NBDR located in a physical downlink shared channel (PDSCH) region of a subframe. The primary NBDR and the secondary NBDRs can be subsets of frequency resources within a wide bandwidth subframe. The wireless device can receive data in at least one of the primary NBDR and the secondary NBDR based on the configuration information. The primary NBDR can be located in the central part of a signal bandwidth spectrum including direct current (DC) subcarrier. The secondary NBDR can use frequency resources within the subframe not used by the primary NBDR. | 05-09-2013 |
20130242812 | SUPPORT FOR ASYNCHRONOUS ADAPTATION TO UPLINK AND DOWNLINK TRAFFIC DEMANDS FOR WIRELESS COMMUNICATION - Technology is discussed to allow transmission points within a Wireless Wide Area Network (WWAN) to adapt to Up Link (UL) and Down Link (DL) traffic demands independently. To mitigate potential interference arising from transmission points scheduled for conflicting UL and DL transmissions, measurements between transmission points can be made to indicate a level of coupling. Based on the various levels of coupling between transmission points, clusters can be formed. Where a high level of coupling is present, transmission points can be included in a common cluster. Where a low level of coupling is present, they can be isolated. Transmission points within the same cluster are scheduled with a common pattern of UL and DL transmissions to avoid interference. Transmission points in different clusters can have different patterns of UL and DL transmission to independently adapt to the relative demands for UL and DL transmissions experienced within these different clusters. | 09-19-2013 |
20130242889 | PHYSICAL UPLINK SHARED CHANNEL (PUSCH) TRANSMISSION TIME INTERVAL (TTI) BUNDLING - Technology for organizing physical uplink shared channel (PUSCH) transmissions is disclosed. One method can include a node generating transmission time interval (TTI) bundling configuration information with instructions to bundle PUSCH transmissions for a hybrid automatic repeat request (HARQ) process in at least 20 TTIs in an approximately 50 subframe time interval in at least one PUSCH TTI bundle. The node can transmit the TTI bundling configuration information to a wireless device to enable the wireless device to transmit a PUSCH signal in the at least one PUSCH TTI bundle within an approximately 50 subframe time interval. | 09-19-2013 |
20130272170 | ADAPTIVE UL-DL TDD CONFIGURATIONS IN A HETEROGNEOUS NETWORK - Technology for adapting uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configurations in a heterogeneous network (HetNet) is disclosed. One method can include a reference enhanced Node B (eNB) determining a preferred adaptive UL-DL configuration. The eNB can receive node configuration information for at least one neighboring node. The eNB can reconfigure an adaptive UL-DL configuration for at least one of the reference eNB and the at least one neighboring node based on the node configuration information and sounding reference signal (SRS) subframe scheduling of the reference eNB and the at least one neighboring eNB. | 10-17-2013 |
20130272215 | EVOLVED NODE B, USER EQUIPMENT, AND METHOD FOR OPERATION OF NARROW BANDWIDTH USER EQUIPMENT IN WIDE BANDWIDTH BROADBAND NETWORKS - Apparatuses and methods for supporting operation of narrow bandwidth devices within a broadband network are described herein. A user equipment (UE) may retrieve control channels within a narrow bandwidth device region of a downlink subframe. The control channels may be received in a subcarrier of a new carrier type (NCT) implemented in accordance with a standard of the 3GPP family of standards. Cell-specific reference signals may be excluded on the NCT subcarrier. | 10-17-2013 |
20130301423 | METHOD, SYSTEM AND APPARATUS OF TIME-DIVISION-DUPLEX (TDD) UPLINK-DOWNLINK (UL-DL) INTERFERENCE MANAGEMENT - Some demonstrative embodiments include devices, systems and/or methods of Time-Division Duplexing (TDD) Uplink-Downlink (UL-DL) interference management. Some embodiments include transmitting a message including a channel quality parameter and a Time-Division-Duplex (TDD) configuration update to at least one other base station of a cellular cell, deciding if the cellular cell is to be operated in a cluster based on the channel quality parameter value, and coordinating an adjustment of uplink-downlink configuration according to a traffic condition. | 11-14-2013 |
20130301489 | METHOD, SYSTEM AND APPARATUS OF TIME-DIVISION-DUPLEX (TDD) UPLINK-DOWNLINK (UL-DL) CONFIGURATION MANAGEMENT - Some demonstrative embodiments include devices, systems and/or methods of Time-Division Duplexing (TDD) Uplink-Downlink (UL-DL) configuration management. For example, a node may communicate a message including a cell identifier identifying a first cell controlled by the node, and a TDD configuration update to update at least one other node, which controls at least one second cell, with a TDD UL-DL configuration allocated by the node for communication within the first cell. | 11-14-2013 |
20130322235 | ADAPTIVE UL-DL CONFIGURATIONS IN A TDD HETEROGENEOUS NETWORK - Technology for traffic offloading to generate a low interference flexible subframe (FlexSF) of an adaptive uplink-downlink (UL-DL) time-division duplexing (TDD) subframe configuration in a heterogeneous network (HetNet) is disclosed. One method can include an evolved Node B (eNB) monitoring a traffic loading metric for a specified traffic loading condition. The eNB can offload traffic scheduled for a packet of a macro user equipment (UE) from a macro cell to a FlexSF of a UL-DL subframe configuration of a small cell when the specified traffic loading condition exists. The eNB can be a macro eNB of the macro cell or a small eNB of the small cell. | 12-05-2013 |
20140018090 | INTER-NODE INTERFERENCE CANCELLATION - A method for cancelling inter-node interference at a victim node is disclosed, which method may be executed as instructions on a machine, where the instructions are included on at least one computer readable medium. The method can include the victim node receiving downlink signal information from an aggressor node. The victim node can estimate a channel impulse response for a channel between the aggressor node and the victim node using the downlink signal information. The victim node can estimate an inter-node interference signal for the channel using the downlink signal information and the channel impulse response. The victim node can receive an uplink signal from a wireless device, wherein the downlink signal information is received prior to the reception of the uplink signal. The victim node can subtract the estimated inter-node interference signal from the uplink signal to form an inter-node interference compensated uplink signal to substantially cancel the inter-node interference from the aggressor node in the uplink signal. | 01-16-2014 |
20140286302 | COVERAGE BOOSTING TRANSMISSION METHOD FOR LTE TECHNOLOGY - Embodiments for boosting coverage of wireless signals are generally described herein. A wireless communication device for boosting coverage of wireless signals may include a processor arranged to configure resource blocks for a sub-frame for transmitting data in a communication session, wherein the sub-frame includes at least one slot formed by a matrix of sub-carriers in the frequency domain and symbols in the time domain and a transceiver, coupled to the processor, the transceiver being arranged to establish communication with entities in a network, the transceiver being further arranged to, under direction of the processor, map modulated symbols to at least a partial resource block to form a coverage boosting resource unit, the coverage boosting resource unit spreading at least one data bit over at least the partial resource block. | 09-25-2014 |
20150055524 | METHOD, SYSTEM AND APPARATUS OF TIME-DIVISION-DUPLEX (TDD) UPLINK-DOWNLINK (UL-DL) CONFIGURATION MANAGEMENT - Some demonstrative embodiments include devices, systems and/or methods of Time-Division Duplexing (TDD) Uplink-Downlink (UL-DL) configuration management. For example, a node may communicate a message including a cell identifier identifying a first cell controlled by the node, and a TDD configuration update to update at least one other node, which controls at least one second cell, with a TDD UL-DL configuration allocated by the node for communication within the first cell. | 02-26-2015 |