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Time Division

Time Division patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Multiplex Communications


Duplex > Communication Over Free Space > Time Division



Method and device for transmitting channel state information in wireless communication system
03/05/15 - 20150063177 - The present invention relates to a wireless communication system. A method for transmitting channel state information (CSI) by a user equipment in a wireless communication system includes receiving a CSI-reference signal (CSI-RS), determining overhead of a common reference signal (CRS) resource element based on the same antenna port number as...

Systems and methods for reducing in-device coexistence (idc) interference
03/05/15 - 20150063178 - Systems and methods are provided for avoiding in-device coexistence interference on a user equipment. A first wireless communication circuitry and a second wireless communication circuitry operate concurrently on the user equipment. The second wireless communication circuitry detects an operational status of the first wireless communication circuitry, and determines if the...

Method for transmitting control information and apparatus therefor
03/05/15 - 20150063179 - A method and a communication device are described for transmitting uplink control information in a wireless communication system supporting carrier aggregation. At least one of a plurality of physical downlink control channels (PDCCHs) indicating downlink semi-persistent scheduling (SPS) release or physical downlink shared channels (PDSCHs) is received in a plurality...

Wireless communication method supporting harq, user equipment, and base station
03/05/15 - 20150063180 - The present invention provides a wireless communication method supporting hybrid automatic repeat request. The method includes: sending first hybrid automatic repeat request (HARQ) process quantity indication information to a user equipment UE; and if second HARQ process quantity indication information is further sent to the UE, determining a second HARQ...

Mitigating interference between co-located wireless technologies
02/26/15 - 20150055516 - An apparatus has a first communication module that is compatible with a first wireless communication technology, and a second communication module that is compatible with a second, different, wireless communication technology. Transmissions by each communication module may contribute to interference at the other communication module. In one example, a Block...

Method for resource management in a tdd cellular communication network and resource management system
02/26/15 - 20150055517 - A method for resource management in a cellular communication network, wherein said network includes at least one base station per cell for a plurality of cells that operates in TDD (Time Division Duplex) transmission mode, each base station having a respective coverage area is characterized in that said base stations...

Method for transmitting or receiving uplink signal
02/26/15 - 20150055518 - The present invention relates to a method for user equipment transmitting an uplink signal in a time division duplex (TDD) wireless communication system, according to one embodiment. The method comprises: detecting a downlink control signal; and transmitting the uplink signal on the basis of uplink-related control information which is included...

Harq feedback implementation method and device
02/26/15 - 20150055519 - Disclosed are an HARQ feedback implementation method and device. The method comprises: according to a TDD uplink/downlink reference configuration, dividing all downlink subframes contained in an FDD downlink carrier into two types, wherein the downlink subframes of the first type correspond to downlink subframes or/and special subframes in the TDD...

Base station and communication control method
02/26/15 - 20150055520 - A control unit 130 assigns a first new call to a radio resource of a frequency channel with a small interference power and, when there is an available radio resource, assigns new calls after the first new call to radio resources of a frequency channel the same as, or adjacent...

Method and device for aggregating carriers in wireless communication system
02/26/15 - 20150055521 - The present invention relates to a method and a device for aggregating carriers in a wireless communication system. In the method, a first carrier is configured, and a second carrier is configured in addition to the first carrier. The first carrier is a time division duplex (TDD) carrier for which...

Method for processing pdsch data
02/26/15 - 20150055522 - An embodiment of the present invention provides a method for processing Physical Downlink Shared Channel (PDSCH) data, to be applied in a system, which supports to adjust uplink and downlink (UL-DL) configurations for Time Division Multiplexing (TDD) dynamically. The method includes: receiving, by a User Equipment (UE), a System Information...

Ul-dl interference management for tdd eimta
02/26/15 - 20150055523 - Uplink-downlink (UL-DL) interference management may benefit various communication systems, such as communication systems of the third generation partnership project (3GPP) long term evolution advanced (LTE-Advanced) release 12 (Rel-12). More specifically, certain methods and apparatuses may provide LTE time division duplex (TDD) enhancement for DL-UL Interference Management and Traffic Adaptation (TDD...

Method, system and apparatus of time-division-duplex (tdd) uplink-downlink (ul-dl) configuration management
02/26/15 - 20150055524 - 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...

Method and apparatus for feeding back aperiodic csi in flexible tdd reconfiguration system
02/19/15 - 20150049652 - The present disclosure provides a method for feeding back aperiodic CSI in a flexible TDD reconfiguration cell. The method includes a UE receiving information about signaling transmitted from an eNB to acquire locations of subframes corresponding to CH and CL, wherein CH and CL correspond to different subframe sets, respectively....

Method and system for handling ue behavior in inter-band carrier aggregation with cell specific tdd configuration
02/19/15 - 20150049653 - A method and system to handle behavior of a carrier aggregation capable User Equipment (UE) that does not support simultaneous reception and transmission in overlapped Downlink (DL)-Uplink (UL) sub frames during inter-band Carrier Aggregation (CA) for cell specific TDD configuration is disclosed. The method specifies whether the UE is allowed...

Time-division duplexing communication method, system and device
02/19/15 - 20150049654 - The embodiments of the present invention relate to the technical field of wireless communications, and particularly, to a time-division duplexing communication method, system and device, which are used for solving the problem in the prior art that there is no uplink or downlink HARQ sequential relationship for a dynamic uplink...

Method and device for ack/nack transmission in tdd-based wireless communication system
02/19/15 - 20150049655 - A method is described of reporting control information in a wireless communication system. A user equipment (UE) supporting at least one cell including a primary cell selects a physical uplink control channel (PUCCH) format among a plurality of PUCCH formats including a first PUCCH format and a second PUCCH format....

Dynamic cell clustering
02/12/15 - 20150043390 - In some implementations, a method for dynamic cell clustering includes splitting, by an initial central coordinator, the cluster into two or more clusters in response to a message from a small cell in a cluster. The initial cluster includes a plurality of cells, including the small cell, with each cell...

Systems and methods for reconfiguration signaling
02/12/15 - 20150043391 - A User Equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE decodes UL/DL reconfiguration signaling on a physical downlink control channel (PDCCH) or enhanced physical downlink control...

Dynamic configuration of subframes in a radio communications system
02/12/15 - 20150043392 - The technology disclosed provides the ability for a subframe to be dynamically configured in time division duplex (TDD) communications between a UE radio terminal and a radio network node. A frame structure includes one or more subframes preconfigured as a downlink subframe, one or more subframes preconfigured as an uplink...

Retransmission method for time division duplexing self-adaptive frame structure, and network side device
02/12/15 - 20150043393 - A retransmission method for a time division duplexing self-adaptive frame structure, and a network side device relate to a technology of dynamically allocating uplink and downlink sub-frames in an LTE-advance (3GPP Release11) TDD communication system. The method comprises: during transmission of a TDD self-adaptive frame, for an uplink sub-frame, if...

Downlink control signalling transmission method and device
02/12/15 - 20150043394 - The invention relates to the field of communications and provides a method of and apparatus for transmitting downlink control information, and the method includes: for transmission of DCI over any carrier, determining DAI information fields in uplink scheduling DCI and downlink scheduling DCI to be carried over the carrier and...

Method and apparatus for data transmission
02/12/15 - 20150043395 - Provided are a method and apparatus for data transmission. In the method, frequency spectrum aggregation is performed on multiple first frequency spectrums corresponding to multiple systems; and data are transmitted on a second frequency spectrum formed through the frequency spectrum aggregation performed on the multiple first frequency spectrums. Through the...

Dynamic signaling of the downlink and uplink subframe allocation for a tdd wireless communication system
02/12/15 - 20150043396 - An apparatus for use in a wireless communication network, comprising a processing resource configured to determine a time interval for periodic time division duplex (TDD) Uplink/Downlink (UL/DL) reconfiguration windows, generate a UL/DL reconfiguration command to indicate a dynamic TDD UL/DL allocation change, and encode the UL/DL reconfiguration command in a...

Method of handling communication operation and related communication device
02/12/15 - 20150043397 - A method of handling a communication operation for a communication device comprising performing a reception in a first subframe of a time-division duplexing (TDD) carrier from a network; and performing a transmission for responding the reception via a second subframe of a uplink (UL) carrier to the network; wherein the...

Techniques for device-to-device communications
02/12/15 - 20150043398 - Examples may include techniques to enable user equipment (UE) to establish a device-to-device (D2D) communication link for D2D communications with another UE. In some examples, the D2D communications may occur when either both or at least one UE is within a coverage area for a wireless wide area network (WWAN)....

Devices for reporting uplink information
02/12/15 - 20150043399 - A user equipment (UE) for reporting information is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE selects a reference cell having a reference uplink-downlink (UL-DL) configuration. The UE also selects a first uplink subframe from the reference...

Mobile communication system and channel transmission/reception method thereof
02/12/15 - 20150043400 - A method for transmitting a physical channel in a Time Division Duplex (TDD) communication system capable of carrier aggregation is provided for supporting aggregation of carriers having different TDD configurations. The communication method of a terminal in a TDD radio communication system accomplishing broadband through carrier aggregation of primary and...

Mobile communication system and channel transmission/reception method thereof
02/12/15 - 20150043401 - A method for transmitting a physical channel in a Time Division Duplex (TDD) communication system capable of carrier aggregation is provided for supporting aggregation of carriers having different TDD configurations. The communication method of a terminal in a TDD radio communication system accomplishing broadband through carrier aggregation of primary and...

Method and apparatus for transmitting signals of user equipment (ue) configured to perform d2d communication in wireless communication system
02/05/15 - 20150036558 - A method for transmitting a signal by a device-to-device (D2D) user equipment (UE) configured to perform D2D communication in a wireless communication system includes transmitting a signal after application of a first timing advance (TA) value for D2D communication, wherein the first timing advance (TA) value for the D2D communication...

Method and device for hybrid automatic repeat request of dynamic frame structure
02/05/15 - 20150036559 - The present disclosure discloses method for Hybrid Automatic Repeat Request (HARQ) of a dynamic frame structure, including: determining, by a system device, that a predefined sub-frame of a current frame contains Downlink Control Information (DCI) indicating a frame structure; in all Time Division Duplexing (TDD) frame structures, selecting a corresponding...

Method and device for allocating resource for downlink control channel in wireless communication system, and apparatus therefor
02/05/15 - 20150036560 - Disclosed is a method for a base station to transmit a downlink control channel to a terminal in a time division duplex (TDD)-based wireless communication system. Specifically, the method comprises determining the number of basic resource allocation units for each resource block pair for a downlink control channel on the...

Method and apparatus for enhancing coverage
02/05/15 - 20150036561 - Embodiments of the disclosure provide a method and apparatus for enhancing coverage in a TDD system, wherein there is at least one TDD UL/DL configuration for subframes in the TDD system, and the at least one UL/DL configuration comprises at least one special subframe and at least one normal subframe....

Dynamical time division duplex uplink and downlink configuration in a communications network
01/29/15 - 20150029910 - A technology is disclosed for a user equipment (UE) that is operable to dynamically change an uplink/downlink (UL/DL) configuration in a communications network. A radio resource control (RRC) connection can be requested with an enhanced node B (eNode B). A UE Capability Information information element (IE) can be communicated to...

Mobile communication system and method for providing common channel coverage using beamforming antennas
01/29/15 - 20150029911 - A wireless transmit/receive unit (WTRU) includes circuitry configured to receive information from a base station indicating an assignment of periodic time slots to transmit sounding signals and circuitry configured to transmit sounding signals to the base station in the assigned periodic time slots in response to the received information, wherein...

User equipment, pdsch a/n transmitting method thereof, transmission/reception point, and pdsch a/n receiving method thereof
01/29/15 - 20150029912 - The present invention relates to a system that includes a transmission/reception point and a user equipment having different configurations in inter-band and performs a TDD (Time Division Duplex) method....

Full duplex direct mode individual and group calling using adjacent time slots in a tdma system
01/22/15 - 20150023227 - A method for enabling full duplex direct mode calls between radios in an N:1 slotting ratio TDMA radio system includes detecting a request for a full duplex direct mode call at a first radio, transmitting in a particular slot of a first recurring time slot of N recurring time slots...

Systems and methods for carrier aggregation
01/22/15 - 20150023228 - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation. At least...

Systems and methods for carrier aggregation
01/22/15 - 20150023229 - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines a duplex method of each serving cell for frequency-division duplexing (FDD) and time-division duplexing (TDD) carrier aggregation. At least...

Dual sim dual active subscriber identification module with a single transmit chain and dual or single receive chain
01/22/15 - 20150023230 - A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions...

Method and apparatus for transceiving channel related to terminal that supports half duplex transmission in mobile communication system
01/22/15 - 20150023231 - Disclosed are a method and an apparatus for transceiving a channel related to a terminal that supports half duplex transmission in a mobile communication system. The terminal receives scheduling information on multi-carriers having different TDD configurations from a base station, determines whether to receive a downlink channel for a plurality...

Virtual full duplex network communications
01/22/15 - 20150023232 - A half-duplex wireless network device is structured to transmit and receive information over a unique pattern of one or more transmission slots and one or more reception slots within each of a sequence of communication frames to accomplish virtual full-duplex communication....

Physical uplink control channel (pucch) resource allocation (ra) for a hybrid automatic retransmission re-quest-acknowledge (harq-ack) transmission
01/15/15 - 20150016311 - Technology to provide conditional physical uplink control channel (PUCCH) resource allocation in time division duplex (TDD) for a hybrid automatic retransmission request-acknowledge (HARQ-ACK) transmission in a subframe n is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a downlink control channel within a...

Method and apparatus for coverage enhancement for a random access process
01/15/15 - 20150016312 - Methods and apparatus are provided for a User Equipment (UE) and a base station in communication with each other to determine parameters for a Random Access (RA) process. The base station informs the UE through a System Information Block (SIB) of a number of resource sets for RA preamble transmission...

Tunable duplexer arrangement configured for tdd operation
01/15/15 - 20150016313 - RF duplexing and methods of operating the same are described herein. In one embodiment, an RF duplexing system may include a control circuit and a duplexer with a first tunable RF filter and second tunable RF filter. The control circuit is operable in a full duplexing transmission mode and a...

Method of tdd precoding
01/15/15 - 20150016314 - An iterative precoding method for a TDD data transmission system includes a transmitter provided with N transmit antenna(s) (N≧1), and a receiver provided with M receive antennas (M≧2). A series of precoders Ln (n≧0) is defined. Each iteration includes: the transmitter takes account of a predetermined value n=n0 if it...

Method for transreceiving signals and apparatus for same
01/15/15 - 20150016315 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation (CA), and to an apparatus for same, comprising the steps of: establishing a first cell having a first time...

Method and system for allocating dynamic frame structure of tdd system, and evolved nodeb
01/15/15 - 20150016316 - The present disclosure discloses a method for allocating a dynamic frame structure of a Time Division Duplexing (TDD) LTE system, including the steps that: an Evolved NodeB (eNB) sends a Radio Resource Control (RRC) information of entering a state of dynamically allocating the frame structure to a User Equipment (UE),...

Method for controlling transmission power of sounding reference signal in wireless communication system and apparatus for same
01/15/15 - 20150016317 - In the present invention, disclosed is a method for a terminal, which receives a downlink signal from a first base station and transmits an uplink signal to a second base station, transmitting a sounding reference signal (SRS) in a wireless communication system. More specifically, the method comprises the steps of:...

Method for operating harq to change dynamic resource of wiress resource in wireless communication system, and apparatus therefor
01/15/15 - 20150016318 - The present application discloses a method for executing a hybrid automatic repeat and request (HARQ) process from a particular layer at a receiving end in a wireless communication system. Specifically, the method comprises the steps of: receiving predetermined information regarding one or more HARQ processes from a subordinate layer so...

Mapping special subframes in a wireless communication network
01/08/15 - 20150009870 - Methods, apparatuses, and systems are described related to mapping special subframes in a wireless communication network. In embodiments, an eNB may assign demodulation reference signals (DM-RSs) and/or cell-specific reference signals (CRSs) to a downlink pilot time slot (DwPTS) of a special subframe responsive to a determined configuration of the special...

Resource allocation in a radio communication system
01/08/15 - 20150009871 - A method of using resource blocks in a communication system with a plurality of Base Stations (BSs), including assigning resource blocks to a first BS, the first BS communicating to a second BS a message comprising information about at least one resource block assigned to the first BS and not...

Method for transreceiving signal and apparatus for same
01/08/15 - 20150009872 - The present invention relates to a wireless communication system. More particularly, the present invention provides a method for carrying out a hybrid automatic repeat request (HARQ) in a wireless communication system supporting carrier aggregation, and to an apparatus for same, comprising the steps of: setting a first cell having a...

Radio frequency transmit-receive apparatus, terminal, and method
01/08/15 - 20150009873 - Embodiments of the present invention provide a radio frequency transmit-receive apparatus, a terminal, and a method. The radio frequency transmit-receive apparatus according to the present invention includes: a first antenna unit, a duplexer, a radio frequency unit, and a signal selecting unit. The embodiments of the present invention can solve...

Time division duplex (tdd) uplink downlink (ul-dl) reconfiguration
01/01/15 - 20150003301 - Technology for performing a Time Division Duplex (TDD) uplink-downlink (UL-DL) reconfiguration in a heterogeneous network (HetNet) is described. An evolved node B (eNB) may identify cluster metrics for a plurality of evolved node Bs (eNBs) in a cell cluster of the HetNet. The plurality of eNBs in the cell cluster...

Uplink control signaling for joint fdd and tdd carrier aggregation
01/01/15 - 20150003302 - Embodiments of the invention are directed to a method for operating a mobile device including establishing a connection to a first base station designated as a PCell and establishing a connection to a second base station designated as a SCell. When the mobile device receives PDSCH from a TDD SCell...

Tdd time slot splitting
01/01/15 - 20150003303 - with said guard period part being scheduled between the uplink and the downlink parts. The duration of at least two of said three parts may be varied to fit the current system need....

Method of data transmission timing control and discontinuous reception handling under joint tdd-fdd operation and related communication device
01/01/15 - 20150003304 - A method of assigning PUCCH transmission timing for a mobile device configured with jointly aggregated TDD and FDD CCs includes determining a UL transmission timing in a first subframe for a corresponding feedback in response to a first DL transmission in a second subframe on a first cell, where the...

Method and apparatus for operating plural time alignment timers in wireless communication system using coordinated multipoint technology
01/01/15 - 20150003305 - Defined are timings at which a user equipment transmits uplink signals to a plurality of base stations in a wireless communication system to which a coordinated multipoint (CoMP) technology is applied. Specifically, a method of controlling uplink signal transmission timings to prevent collision between timings in transmission of uplink signals...

Method for transmitting control information and apparatus for same
12/25/14 - 20140376421 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information in the wireless communication system, which supports carrier aggregation and operates by a TDD, and comprises the steps of: generating a first HARQ-ACK set...

Method and system for processing downlink control information
12/25/14 - 20140376422 - A method and a system for processing downlink control information are disclosed, in which downlink control information for the subframe n may be transmitted in a subframe n or the downlink control information for the subframe n may be transmitted in a subframe n−1. By means of technology for processing...

Coexisting wireless systems
12/25/14 - 20140376423 - The present invention provides a method of cancelling interference caused by a transmitter of a first wireless system to a receiver of a second wireless system, the transmitter and receiver being operative in adjacent frequency bands. The method comprises receiving a signal at the second wireless system that is corrupted...

Method and apparatus for transmitting uplink control information in wireless communication system
12/25/14 - 20140376424 - Provided are a method and an apparatus for transmitting uplink control information performed by a user equipment in a wireless communication system. The method comprises the steps of: receiving a first parameter for indicating whether to simultaneously transmit a first combination of an acknowledgement/negative-acknowledgement (ACK/NACK) and a channel quality indicator...

Random access channel enhancement for carrier aggregation with different uplink/downlink configuration
12/25/14 - 20140376425 - The present invention relates to methods, apparatuses and a computer program product for random access channel enhancement for carrier aggregation with different uplink/downlink configuration. The present invention includes detecting, at a user equipment, a downlink control channel in a specific downlink subframe on a first component carrier, receiving, at the...

Methods of ul tdm for inter-enodeb carrier aggregation
12/18/14 - 20140369242 - One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes...

Frequency synchronization method for nodes in a downlink coordinated multiple point transmission scenario
12/18/14 - 20140369243 - Techniques are disclosed for synchronizing frequency among a cluster of coordinated transmission points cooperating in a coherent joint transmission. In some embodiments, one transmission point is set (510) as a reference transmission point for a group of coordinated transmission points. Each of one or more other transmission points in the...

Periodic channel state information reporting for time division duplex (tdd) carrier aggregation systems
12/18/14 - 20140369244 - Technology for reporting periodic channel state information (CSI) is disclosed. One method can include determining a reporting period (Npd) of a user equipment (UE) for a serving cell. A Time-Division Duplex (TDD) uplink-downlink (UL-DL) configuration of a primary cell of the UE can be identified. A periodic CSI report for...

Method and apparatus for transmission by time division duplexing (tdd) devices using multiple antennas
12/11/14 - 20140362744 - TDD devices may transmit using multiple antennas. First and second antennas having first and second receive conditions may receive a communication. In an aspect, first and second transmit conditions for the first and second antennas may be determined based on the first and second receive conditions. In an aspect, the...

Central processing unit and methods for supporting coordinated multipoint transmission in an lte network
12/11/14 - 20140362745 - 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...

Method and device for sending hybrid automatic repeat request acknowledge information
12/11/14 - 20140362746 - Disclosed are a method and device for sending hybrid automatic repeat request acknowledge information. The method includes: in a TDD system, configuring a terminal to employ a PUCCH format 1b with channel selection method to send HARQ-ACK information; bundling the HARQ-ACK information of downlink subframes of serving cells in a...

Method and apparatus for transmitting control information in wireless communication system
12/11/14 - 20140362747 - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting control information by means of a terminal in a CA-based wireless communication system, including the steps of: forming first and second cells that include different subframe configurations, wherein...