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Multiplex Communications > Duplex > Communication Over Free Space > Time Division

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.

04/17/14 - 20140105075 - Base station and method for configuring sub-frames for relay-node operations
A frame structure for support of large delay spread deployment scenarios (e.g., cellular system operation in large cell sizes or low frequency bands) is generally presented. In this regard a method is introduced comprising partitioning a radio frame into a plurality of equal-sized (or non-equal-sized) sub-frames to simplify system implementation....

04/17/14 - 20140105076 - Method for transmitting control information and apparatus therefor
The present invention relates to a wireless communication system. In more detail, the present invention relates to a method and device for transmitting uplink control information in a wireless communication system that supports carrier merging and operates in TDD, and the method comprises the following steps: receiving at least one...

04/17/14 - 20140105077 - Time division duplex tdd communication method, base station, and user equipment
The present invention discloses a time division duplex TDD communication method, including: reserving, by a base station, in a second subframe, acknowledgment channel resources for each subframe in a first subframe set, where acknowledgement channel resources reserved for at least two subframes in the first subframe set completely or partly...

04/10/14 - 20140098719 - Method and apparatus for performing harq process in wireless communication system
A method and an apparatus for performing hybrid automatic repeat request (HARQ) in a wireless communication system is provided. UEs that use the same application for D2D communications form a sharing group so that reliability of transmission of a physical uplink shared channel (PUSCH) and a physical uplink control channel...

04/10/14 - 20140098720 - Methods, devices and computer program products for interference reduction in tdd systems allowing allocation of flexible subframes for uplink or downlink transmission
Methods, devices and computer program products in relation to interference reduction are presented, in particular for devices comprising a transceiver module configured for TDD operation in a network environment wherein a partition of subframes of channels are configurable to be flexibly assigned for downlink or uplink transmission while other subframes...

04/10/14 - 20140098721 - Communication method and device in time division duplexing system
Embodiments of the present invention relate to a communication method and a device in a time division duplexing system. The communication method in a time division duplexing system includes: notifying a user equipment of an uplink-downlink configuration of a radio frame; specifying a part of downlink subframes corresponding to the...

04/03/14 - 20140092784 - Extension carrier for arq
According to one or more embodiments described and claimed herein, HARQ acknowledgements, re-transmissions, and related signaling (e.g., channel quality reports) are performed on a Re-transmission Extension Carrier (REC) separate from the primary downlink traffic carrier(s). In various embodiments, as explained herein, the REC may comprise an aggregated wireless communication network...

04/03/14 - 20140092785 - Methods and apparatus for enabling further l1 enhancements in lte heterogeneous networks
A network element in a first cell in a wireless telecommunication network is provided. The network element comprises a processor configured such that the network element provides uplink and downlink grants in the first cell, wherein the first cell is a low-power cell within the coverage area of a second,...

04/03/14 - 20140092786 - Hybrid automatic repeat request (harq) mapping for carrier aggregation (ca)
Technology to dynamically alter hybrid automatic retransmission re-quest (HARQ) mapping for carrier aggregation (CA) is disclosed. In an example, a user equipment (UE) operable to dynamically alter hybrid automatic retransmission re-quest (HARQ) mapping for carrier aggregation (CA) can include computer circuitry configured to: Determine a secondary HARQ bundling window size...

04/03/14 - 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...

04/03/14 - 20140092788 - Method and apparatus for transmitting and receiving data in mobile communication system
A data transceiving method of a terminal in a mobile communication system is provided. The data transceiving method includes receiving a Time Division Duplex (TDD) configuration modification message including TDD configuration modification time information from a base station, modifying a TDD configuration based on the TDD configuration modification time information,...

04/03/14 - 20140092789 - Phich-less operation for uplink-downlink configuration zero
Various communication systems may benefit from techniques for handling inter-band carrier aggregation (CA). For example, systems of the third generation partnership project (3GPP) long term evolution (LTE) advanced (LTE-A) may benefit from a uplink (UL) downlink (DL) configuration zero handling, particularly in cases where there is no physical hybrid automatic...

04/03/14 - 20140092790 - Resource allocation in communications system
An exemplary embodiment discloses a multi-subframe physical uplink control channel PUCCH resource arrangement for PUCCH format 1a/1b resource allocation for enhanced physical downlink control channel EPDCCH in time division duplex TDD transmission. A definition of a semi-static offset for each EPDCCH set is extended by considering multiple downlink subframes, and...

04/03/14 - 20140092791 - Systems and methods for processing time-division signals and frequency-division signals
System and methods are provided for processing time-division signals and frequency-division signals using a multi-mode transceiver. The example system includes a power amplifier, a switching component, and a duplexer. The power amplifier is configured to receive a first time-division signal from the transceiver and to generate an amplified time-division signal...

04/03/14 - 20140092792 - Method for transmitting control information in wireless communication system and device therefor
The present invention relates to a wireless communication system. In particular, the present invention relates to a method for receiving a downlink control channel in a wireless communication system, and a device therefore, more particularly, to the method and a device therefore, the method comprising the steps of: receiving an...

04/03/14 - 20140092793 - Method for setting subframe in wireless communication system
The present invention relates to a method for setting a subframe in a wireless communication system and to an apparatus for same. More particularly, the method for setting the subframe in the wireless communication system that is operated by a time division duplex (TDD), comprises the steps of: setting at...

04/03/14 - 20140092794 - Method for transmitting and receiving a signal, and apparatus therefor
The present invention relates to a wireless communication system. Specifically, a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation includes the steps of: setting a first cell of a first time division duplex (TDD) uplink (UL)-downlink (DL) configuration, and a second cell of a...

03/27/14 - 20140086110 - Method for counting timer for retransmission in wireless communication system and apparatus therefor
A method for operating a timer at a user equipment in a Time Division Duplex (TDD) communication system is disclosed. The present invention includes steps of configuring a DRX (Discontinuous Reception) retransmission timer; and start the DRX retransmission timer to monitor consecutive PDCCH (Physical Downlink Control CHannel) subframes, wherein the...

03/27/14 - 20140086111 - Methods and devices for transmitting and receiving synchronous channels and broadcasting channels
A method for multiplexing synchronous signals on specific OFDM symbols to form P-SCH and the S-SCH channels is provided. The present application further discloses a method for transmitting P-BCH....

03/27/14 - 20140086112 - Methods for dynamic tdd uplink/downlink configuration
A method and apparatus for Time Division Duplex (TDD) operation in a wireless transmit/receive unit (WTRU) are disclosed. The method includes receiving a first TDD uplink (UL)/downlink (DL) configuration for a serving cell, receiving a second TDD UL/DL configuration for the serving cell, receiving an indication of directions to use...

03/27/14 - 20140086113 - Method and apparatus for transmitting and receiving control channel in dynamic time division duplex system
A method and system for transmitting and receiving a control channel in a dynamic Time Division Duplex (TDD) system. Upon receiving a control signal DCI for a first Hybrid Automatic Retransmission Request (HARQ) process from a Node B, a User Equipment (UE) determines whether TDD configuration is changed in a...

03/27/14 - 20140086114 - Channel quality indicator method, and associated system, base station, and user equipment
It would be to provide a method which will work with future versions of LTE-A, be backwards compatible and alleviate interference to signals for basic system operation. The method includes generating one or more Reference Signals associated with the one or more Channel Quality Indicators, and includes mapping the one...

03/27/14 - 20140086115 - Asymmetric tdd in flexible use spectrum
A method according to an embodiment of the invention includes receiving and transmitting signals over a time division duplex (TDD) communication path. Signals are received over the TDD communication path via a first portion of a first frequency band. The first frequency band is adjacent to a second frequency band...

03/27/14 - 20140086116 - Method and apparatus for transmitting/receiving signals with a terminal in tdd wireless communication system
Provided are a method and apparatus for transmitting/receiving signals with a terminal in a time division duplex (TDD) system. The method comprises: a scheduling information and pattern information receiving step, wherein a second subframe is scheduled within a first subframe; and a step for transmitting/receiving signals with a base station...

03/27/14 - 20140086117 - Control signalling in carrier aggregation system
There is provided a timing entity for a communication network which includes a base station and a user equipment capable of communicating with each other over at least two carriers which have different temporal configuration of its uplink and downlink resources. The timing entity includes a control entity adapted for...

03/27/14 - 20140086118 - Discontinuous reception for carrier aggregation
Methods and apparatuses for carrier aggregation with discontinuous reception is disclosed. At least two different time division duplexing configurations can be communicated from serving cells to a device, the subframes of the at least two different configurations being counted for purposes of operating at least one timer function according to...

03/27/14 - 20140086119 - Method for user equipment transreceiving signal in wireless communication system
The present invention relates to a method for transceiving signals between a user equipment and a base station in a wireless communication system, and to an apparatus for same. More particularly, a method for the user equipment transceiving the signal in the wireless communication system, which is operated by a...

03/20/14 - 20140078941 - Method and device for executing harq in tdd-based wireless communication system
Provided are a method and a device for executing a hybrid automatic repeat request (HARQ) of a terminal in a time division duplex (TDD)-based wireless communication system. The method comprises the steps of: receiving an uplink grant for a first subframe of a second serving cell through a first serving...

03/20/14 - 20140078942 - Transmitting and receiving uplink control channel
The disclosure is related to transmitting a control channel, multiplexing an uplink control channel, and multiplexing a sounding reference signal for user equipment configured with carrier aggregation....

03/20/14 - 20140078943 - Relay transmission method and apparatus
A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex relay frame for a subframe of relay link), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink subframe of the...

03/20/14 - 20140078944 - Method for transmitting control information and apparatus therefor
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information in a wireless communication system that supports carrier aggregation and operates in a TDD system, and to an apparatus therefor. The system comprises the steps of: generating...

03/13/14 - 20140071860 - Setting timers when using radio carrier aggregation
The present invention relates to a method of a user equipment (UE) using discontinuous reception (DRX) and time division duplex (TDD) carrier aggregation of at least a first and a second cell, the first cell 501 having an UL-DL configuration of uplink (UL) and downlink (DL) subframes 503 which is...

03/13/14 - 20140071861 - Method and apparatus for detecting synchronization position of lte cell
The present invention provides a method and an apparatus for detecting a synchronization position of an LTE cell. A part of sampling points are selected from all sampling points of received data, where the received data is generated by filtering a local sequence from a base station; correlation operations are...

03/13/14 - 20140071862 - Uplink transmission method and apparatus in inter-enb inter-duplex carrier aggregation system
A method and apparatus are provided for transmitting uplink signals including feedback for use in scheduling at different evolved Node Bs (eNBs) without intermodulation interference, especially in cases where the User Equipment (UE) is connected to an inter-duplex inter-eNB system in which the cooperation between eNBs is very slow or...

03/13/14 - 20140071863 - Apparatus and method for data transmission in wireless communication system
A data transmitter for a wireless communication system is provided. Said apparatus comprises an OFDM (Orthogonal Frequency Division Multiplexing) symbol generating part that generates a plurality of OFDM symbols, a frame configuration part that configures a frame comprising includes said plurality of OFDM symbols, and a transmission part that transmits...

03/06/14 - 20140064159 - Method and apparatus for hybrid automatic repeat request signaling
In one aspect, the teachings herein provide a method and apparatus for extending certain HARQ feedback procedures introduced in LTE Rel-10, which were defined for CA configurations involving TDD serving cells of the same UL/DL configuration, to the new, more complex CA configurations introduced in Rel-11, which involve the aggregation...

02/27/14 - 20140056184 - Method for transmitting control information and apparatus for same
A wireless communication system is disclosed. A method for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD includes: generating a first HARQ-ACK (hybrid automatic repeat request—acknowledgement) set for a first cell using a value M; generating a second HARQ-ACK set for a...

02/27/14 - 20140056185 - Communication method and device used for time division duplex system
Embodiments of the present invention, relating to the field of communications technologies, provide a communication method and device used for a time division duplex system. The communication method includes: adjusting a first uplink-downlink subframe configuration to a second uplink-downlink subframe configuration, where there is an intersection between subframes corresponding to...

02/27/14 - 20140056186 - Methods, devices and computer program products for interference reduction in tdd systems allowing allocation of flexible subframes for uplink or downlink transmission
The present invention proposes methods, devices and computer program products in relation to interference reduction, in particular for control channels in TDD systems allowing allocation of flexible subframes for uplink or downlink transmission. In relation thereto, a format of data transmission in flexible subframes in the uplink and/or downlink is...

02/27/14 - 20140056187 - Method and apparatus for coding of harq-ack transmission in tdd systems with downlink carrier aggregation
Methods and apparatus are provided for a User Equipment (UE) configured with multiple cells in a DownLink (DL) of a Time Division Duplex (TDD) communication system to determine the coding method for acknowledgement information bits as a function of their number, to apply bundling to the acknowledgement information bits when...

02/27/14 - 20140056188 - Method and apparatus for transmitting control information in wireless communication system
The present invention relates to a method for receiving a downlink control signal in a TDD-based wireless communication system, and to an apparatus therefor. The method comprises receiving a downlink signal via a downlink interval in a specific frame including the downlink interval, a guard interval and an uplink interval....

02/27/14 - 20140056189 - Tdd base station for code group synchronization
A time division duplex (TDD) base station having a code group out of N code groups includes circuitry configured to transmit a primary synchronization code along with a plurality of secondary synchronization codes. The plurality of synchronization codes are quadrature phase shift keying modulated and number less than (log2N)+1. The...

02/27/14 - 20140056190 - Reducing interference caused by an atmospheric duct in a wireless communication system
A first base station (14) in a wireless communication system (10) operating according to a synchronised time division scheme detects interference of uplink communication, determines the delay of the interference in relation to an own communication structure (CS1), detects aerial interface identifying data of the source of interference identifying a...

02/20/14 - 20140050125 - Method for dynamic change of downlink/uplink allocation in lte-tdd systems
A method of dynamically adjusting the downlink-uplink allocation in a TDD system, includes: transmitting a downlink-uplink allocation signal to at least one user device, wherein the allocation signals specifies a set of flexible subframes within a radio frame that can be flexibly configured as either downlink or uplink subframes; determining...

02/20/14 - 20140050126 - Frame structure for a multi-hop wireless system
A wireless network includes a base station which can serve terminals directly, or via multi-hop transmission paths via relay stations. The base station transmits a downlink sub-frame which includes a first set of frame control information and a second set of frame control information. The second set of frame control...

02/20/14 - 20140050127 - Enhanced node b and method for configuring an extension carrier
An apparatus and method for providing configuration information relating to an extension carrier within a wireless communications network is disclosed herein. In one embodiment, each enhanced node B (eNodeB) transmits the configuration information within the downlink subframes of at least one radio frame, wherein the configuration information is transmitted on...

02/20/14 - 20140050128 - Method and a system for avoiding interferences in frequency division duplex operating areas
means for coordinating the use of radio resources between different network elements by the sending of messages between part or all of the network elements through a synchronized TDD air interface....

02/20/14 - 20140050129 - Method and apparatus for cell reselection for a wireless communication device
A method and apparatus for cell reselection for a wireless communication device are disclosed....

02/20/14 - 20140050130 - Method for transmitting/receiving data in wireless communication system and base station for same
In the present invention, a method for transmitting/receiving data in a wireless communication system supporting carrier aggregation/multiple cells and a base station for same are disclosed. More particularly, the method comprises: receiving from the e Node B through a physical downlink control channel (PDCCH) of a first cell resource allocation...

02/20/14 - 20140050131 - Wireless resource allocation method and wireless resource allocation device, and communication system
Inter-cell interference is avoided in a cellular system operated in a TDD scheme. An order of a plurality of configurations are rearranged in the ascending order of the number of downlink sub frames and in the descending order of the number of uplink sub frames, and configurations are switched between...

02/13/14 - 20140044024 - Methods and apparatuses for controlling and scheduling device-to-device communications
At least one example embodiment discloses a method of controlling direct user equipment communications. The method includes receiving reports from a first user equipment (UE) and a second UE, respectively, the first and second UEs communicating with a serving base station, determining at least one control channel and at least...

02/13/14 - 20140044025 - Method and apparatus for transmitting harq-ack
An apparatus and a method are provided for transmitting a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) in a Time Division Duplexing (TDD) Carrier Aggregation (CA) system, wherein the duplex direction of a sub frame may change flexibly. According to the method, a UE receives configuration information from a base station...