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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



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...

Multicast service using unicast subframe
12/04/14 - 20140355493 - A system and method for multicast servicing in a unicast subframe is disclosed. The method using an evolved Node B (eNodeB) comprises the operation of setting up a multicast service on each of a plurality of user equipments (UEs) in a multicast group using a multicast identifier. The operation of...

Overhearing
12/04/14 - 20140355494 - A method for use by a base station of a communication network is provided, the base station belonging to a first group of base stations and the communication network comprising the first group of base stations and second and third groups of base stations. The base station provides access to...

Method and radio node for controlling change of communication mode
12/04/14 - 20140355495 - Method and radio node (500) for controlling a change of communication mode between transmit mode and receive mode according to a Time Division Duplex, TDD, scheme. The radio node has at least two parallel branches (504, 06) for transmission and reception of radio signals, wherein the branches currently operate in...

Apparatus and method for communicating signaling information
12/04/14 - 20140355496 - A wireless subscriber communication unit is provided for operation in a cellular communication system having a plurality of shared uplink and downlink transmission resources, each divided into sets of mutually exclusive resources. The shared uplink transmission resources are defined in terms of codes and timeslots. The communication unit comprises a...

Power control of physical uplink control channel for long term evolution - advanced time division duplex
11/27/14 - 20140348036 - Methods and apparatus are directed towards controlling power of physical uplink control channel (PUCCH) format 1b for advanced time division duplex. If HARQ-ACK bundling is not applied, then nHARQ associated with the PUCCH is determined based on a number of received transport blocks and SPS release physical downlink control channels...

Method for updating system information, access network equipment and user equipment
11/27/14 - 20140348037 - Embodiments of the present invention provide a method for updating system information, an access network equipment, and a user equipment. Embodiments of the present invention can avoid the problem that, in the prior art, the user equipment is unable to correctly receive updated system information in that a subframe, configured...

Radio communication system, radio base station apparatus, user terminal and radio communication method
11/27/14 - 20140348038 - The present invention is designed to prevent the decrease of capacity even when the ratio of uplink subframes and downlink subframes is changed in each component carrier in TDD carrier aggregation. With the radio communication method according to the present invention, a radio base station apparatus generates a downlink control...

Method and device for transreceiving cell-selective signals in multicomponent carrier system
11/27/14 - 20140348039 - The present invention relates to a method and device for transreceiving cell-selective signals in a multi-component carrier system. The present invention provides a method for transreceiving cell-selective signals, and the method comprises the steps of: configuring, in a terminal, a sub serving cell belonging to a first band; setting one...

Semi-full-duplex single-carrier transmission technique
11/27/14 - 20140348040 - There are provided measures for enabling a semi-full-duplex single-carrier transmission technique. Such measures may exemplarily comprise classifying each one of served terminals into one of two transmission groups, assigning an uplink-downlink configuration of a frame structure for time division duplex communication for each one of the two transmission groups such...

Communications in a wireless network
11/27/14 - 20140348041 - A network device that sends resource allocation information associated with a physical uplink control channel is disclosed. The physical uplink control channel and a physical uplink shared channel may have different resources. The network device may receive, at times that the physical uplink shared channel is not received, a signal...

Dynamic tdd operation method and apparatus for use in wireless communication system
11/20/14 - 20140341091 - A method and apparatus are provided for signal transmission and reception in a Time Division Duplex (TDD) system. The method includes receiving, from a base station, first configuration information including an uplink reference Uplink-Downlink (UL-DL) configuration; receiving, from the base station, second configuration information including a downlink reference UL-DL configuration;...

Method and related communication device for handling communication between time division duplex devices
11/20/14 - 20140341092 - A method of handling communication between time division duplex (TDD) devices for a network in a wireless communication system includes selecting at least two subframes to be used for a device to device (D2D) communication between a first user equipment (UE) and a second UE in the wireless communication system;...

Method for setting downlink transmission power in wireless access system, and apparatus therefor
11/20/14 - 20140341093 - Disclosed are a method for setting downlink transmission power in a wireless access system supporting an environment in which an amount of uplink resources and an amount of downlink resources dynamically change, and an apparatus therefore. Specifically, the method comprises the steps of: classifying resources to be used for downlink...

Method for transmitting/receiving signal and device therefor
11/20/14 - 20140341094 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring...

Method for transmitting/receiving signal and device therefor
11/20/14 - 20140341095 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring...

Efficient control information transmission method and apparatus for supporting multiple antenna transmission technique
11/20/14 - 20140341096 - The present invention relates to a wireless communication system and provides an efficient control information transmission method and apparatus for supporting a multiple antenna transmission technique. A method is provided for transmitting downlink hybrid automatic repeat request (HARQ) information related to an uplink multiple codeword transmission and includes receiving the...

Methods and apparatus for cell measurement
11/13/14 - 20140334350 - Methods and apparatus for cell measurement. An example method in a network device includes receiving configuration information including at least one of multimedia broadcast single frequency network (MBSFN) configuration or time division duplex (TDD) configuration for an evolved universal terrestrial radio access network (E-UTRAN) and transmitting the configuration information to...

Systems and methods for signaling reference configurations
11/13/14 - 20140334351 - 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 receives a primary TDD UL/DL configuration for a serving cell and reconfiguration information. The UE determines...

Cell cluster coordination
11/13/14 - 20140334352 - The present application describes embodiments of a method for coordinating cells in a cluster. One embodiment of the method includes sending, from a first base station, information identifying a first time division duplex (TDD) subframe configuration associated with the first base station. This embodiment of the method also includes receiving,...

Dynamic time division duplexing method and apparatuses using the same
11/13/14 - 20140334353 - The present disclosure proposes a dynamic time division duplexing (TDD) method applicable to a user equipment and a control node, and apparatuses using the same method. Accordingly, the present disclosure proposes a base station (BS) which transmits to a least one user equipment (UE) a system information block (SIB) having...

System and method for tdd configuration for d2d open discovery
11/13/14 - 20140334354 - Embodiments are provided to support device-to-device (D2D) communications in a time-division duplexing (TDD) communications system, and ensure that D2D discovery signals are transmitted by user devices on an uplink subframe when there is a TDD frame configuration change. In an embodiment, a user device receives form the network a TDD...

Dynamic reconfiguration of uplink transmission in a tdd wireless communication system
11/13/14 - 20140334355 - Embodiments of the invention use signaling mechanisms that enable dynamic reconfiguration of the UL/DL resource partitioning by user equipment (UE) in a TDD wireless communication system, such as the 3GPP TDD Long Term Evolution (TD-LTE) system. The dynamic reconfiguration of the UL/DL resource partitioning disclosed herein may also be applied...

Resource management method and apparatus for controlling interference between cells
11/13/14 - 20140334356 - An exemplary embodiment of the present invention provides a resource management method performed by a coordinator for controlling interference between cells. The coordinator receives a channel state of a second base station neighboring a first base station from the first base station. The coordinator partitions a resource based on the...

Method for transmitting/receiving signal and device therefor
11/13/14 - 20140334357 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL...

Method for transmitting/receiving signal and device therefor
11/13/14 - 20140334358 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL...

Systems and methods for carrier aggregation
11/13/14 - 20140334359 - 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 an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD)...

Baseband data transmission and reception in an lte wireless base station employing periodically scanning rf beam forming techniques
11/13/14 - 20140334360 - The present disclosure is related to a large-scale broadband wireless network capable of providing a very high wireless data capacity, wherein one aspect of the system utilizes a periodic beam forming system. When a wireless base station cell operates a periodic beam forming system, it is necessary to locate each...

Coexistence detection of wifi networks using idle intervals in a tdd system
11/06/14 - 20140328225 - A process includes determining an unallocated communication frame of a first radio access technology (RAT) using a dedicated physical channel (DPCH) with a time division multiplexing scheme. Measurements are then performed to identify for a second RAT during a time allocated to the unallocated communication frame....

Data transmission method and device
11/06/14 - 20140328226 - The embodiments of the present invention relate to the field of wireless communication technology, especially relate to a data transmission method and device, which are used for supporting the signal reception and transmission between other entities other than the communication between a user device and a base station in the...

Method, base station, and system for synchronizing lte-tdd network and wimax network
11/06/14 - 20140328227 - A method, a base station, and a system are provided for synchronizing an LTE-TDD network and a WiMAX network. The method includes: synchronizing the LTE-TDD network and the WiMAX network with a same clock source; determining a frame format of the WiMAX network; determining a half-frame format of the LTE-TDD...

Method and device for transmitting/receiving transmission mode information on user terminal in inter-band tdd transmission scheme
11/06/14 - 20140328228 - The present invention relates to a method of receiving transmission mode information on a user terminal in an inter-band TDD transmission scheme. The present invention includes, at a base station controlling two or more bands with different time division duplex (TDD) settings, receiving a user terminal function information message that...

Communication method and wireless device in tdd-based wireless communication system
11/06/14 - 20140328229 - Provided are a communication method and a wireless device in a time division duplex (TDD)-based wireless communication system. A wireless device receives a setting for a first special (S) subframe of a first cell to which a first timing advance (TA) is applied and a setting for a second S...

Method for transmitting uplink control channel by terminal in wireless communication system
10/30/14 - 20140321337 - A method for transmitting an uplink control channel by a terminal in a wireless communication system that supports a plurality of serving cells for the terminal, comprises a step of receiving information on a plurality of serving cells include a P-cell and at least one S-cell constructed for the terminal...

Method and apparatus for applying pusch/phich scheduling timing in inter-band tdd transmission schemes
10/30/14 - 20140321338 - The present invention relates to a method and apparatus for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes. According to an embodiment of the present invention, the method for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes by a base station for controlling two or more different TDD...

Frame structure and signaling arrangement for interference aware scheduling
10/23/14 - 20140313948 - Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include...

Signaling and procedure design for cellular cluster contending on license-exempt bands
10/23/14 - 20140313949 - The specification and drawings present a new method, apparatus and software related product (e.g., computer readable memory) for implementing a device-to-device communication of cellular, e.g., LTE, wireless devices on a shared band (e.g., ISM 2.4 GHz band), including the signaling and procedure design for contending or coordinating with the already...

Method for transmitting control information and apparatus therefor
10/23/14 - 20140313950 - A method and device for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD are discussed. The method includes transmitting hybrid automatic repeat request acknowledgements (HARQ-ACKs) feedback bits o(0),o(1),o(2),o(3) on a physical uplink shared channel (PUSCH), wherein the HARQ-ACKs feedback bits corresponds to...