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| Number | Title | Issue Date |
| 8179823 | Communication control method, base station device, terminal device, and communication control system using TDD-OFDMA communication method In a communication system and a communication method using a TDD-OFDMA communication method, inter-carrier interference due to delay dispersion is prevented by suppressing the delay time within a guard interval. In a base station device 10, based on a ... | 05/15/2012 |
| 8165046 | Framing for an adaptive modulation communication system A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the dow... | 04/24/2012 |
| 8159979 | Enhanced TDD frame structure A method of providing uplink and downlink transmissions between a mobile terminal and a base station in a mobile communication system is provided. The method increases the flexibility and efficiency of a mobile communication system utilizing one or more relay entiti... | 04/17/2012 |
| 8144634 | Reducing automatic gain control process in time division duplex communication mode In TDD mobile networks, an incoming signal is received during a time period where no uplink communication takes place. The incoming signal is measured and analyzed to determine a noise level. Based on the noise level and on an uplink signal level from expected in a ... | 03/27/2012 |
| 8134940 | Method and apparatus in a telecommunication system Method and apparatus in a communication unit (400) employing a wireless TDD or half duplex FDD transmission arrangement when communicating with a data sending party, for scheduling feedback reports for data blocks in received RX sub-frames, in TX sub-frames a... | 03/13/2012 |
| 8111641 | Joint detection (jd) method for adjacent cells in TDD/CDMA system A method for performing multi-user joint-detection in a neighboring cell in a TDD-CDMA system presets slot types and includes: a network device configuring a slot type of each uplink slot in its administrated cells and a base station of each cell obtaining a slot ty... | 02/07/2012 |
| 8102785 | Calibrating radiofrequency paths of a phased-array antenna The present invention provides a method of calibrating base station comprising a plurality of antennas and operating in an Orthogonal Frequency Division Multiplex (OFDM) and Time Division Duplex (TDD) mode. One embodiment of the method includes a method of calibrati... | 01/24/2012 |
| 8098602 | System and method for transferring data over full-duplex differential serial link A data transmission technique where high speed data is transmitted differentially in a forward channel by way of a serial link, and relatively low speed data is differentially modulated onto the forward channel signal for transmission in a reverse channel via the li... | 01/17/2012 |
| 8089906 | Dual mode transceiver A circuit is disclosed with an external coupling port for coupling to an external antenna, for example. The circuit has an FDD receive path including a narrowband passband filter. The circuit has a TDD receive path bypassing the narrowband passband filter but relyin... | 01/03/2012 |
| 8077640 | Method for supporting asymmetric service flexible in multi-carrier time division duplex mobile communication system A method to support dissymmetry service for multicarrier time division duplexing mobile communication system, which contains adopting different uplink and downlink time gap conversion point to support dissymmetry service among multicarrier frequency of different cel... | 12/13/2011 |
| 8072911 | Methods and devices relating to downlink assignments The invention relates to a method in a first communication device of receiving control information over a radio channel from a second communication device. The first communication device receives a subframe over the radio channel, and determines whether the subframe... | 12/06/2011 |
| 8068445 | Scheduling uplink sounding signals A method and apparatus are provided for scheduling a transmission of uplink sounding signals for a mobile station (MS). The method comprises receiving a request to send the MS downlink signals associated with a service flow at a first frame, searching a scheduling d... | 11/29/2011 |
| 8054767 | Method of transmitting scheduling information in TDD system A method of transmitting scheduling information in time-division-duplex(TDD) system is provided. The method comprises configuring a radio frame, the radio frame comprising at least one downlink subframe and at least one uplink subframe, wherein a downlink subframe i... | 11/08/2011 |
| 8036145 | Frame structure for a wireless communication system A frame format used in a wireless communication system, more particularly an OFDMA TDD wireless communication system, of the kind that includes a base station and a plurality of fixed or mobile subscriber stations, the base station maintaining connections with each ... | 10/11/2011 |
| 8018879 | Wireless transmission method of using efficient high performance frame structure in wideband TDD system The present invention provides a method of wireless transmission using a high-efficiency and high-performance frame structure used by the broadband TDD system, wherein the method includes: dividing a sub-frame with a fixed length into N+1 basic slots and three speci... | 09/13/2011 |
| 8000273 | Method for transmitting uplink sounding reference signal for LTE system A method for transmitting an uplink sounding reference signal includes indexing Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols within a single radio frame for transmitting a Sounding Reference Signal (SRS) as a number k, and calculating a value ... | 08/16/2011 |
| 8000272 | Uplink scheduling grant for time division duplex with asymmetric uplink and downlink configuration Signalling uplink and downlink scheduling grants for a plurality of subframes in a time division duplex frame is addressed. In one aspect the allocated uplink subframes are divided into groups, so the number of groups equals the number of downlink subframes being al... | 08/16/2011 |
| 7978634 | TDD system based cell handoff method and user equipment The present invention discloses a cell handoff method and a UE based on a TDD system. A UE measures received pilot channels of a source cell and a neighboring cell according to a measurement control message and reports measurement result to a RNC. The RNC, determine... | 07/12/2011 |
| 7961654 | System and method for concurrent wireless voice and data communications Unitary transceiving units employ a multiple carrier, time-division-multiple-access (TDMA), time-division-duplex (TDD protocol to conduct concurrent wireless voice and data communications wherein a first transceiving base station unit tethered to a network interface... | 06/14/2011 |
| 7957329 | Method of performing hybrid automatic repeat request (HARQ) in wireless communication system A method of performing hybrid automatic repeat request (HARQ) performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving downlink assignments in a first subframe, a downlink assignment being transmitted based on ... | 06/07/2011 |
| 7948924 | Apparatus for optionally supporting time division duplex and frequency division duplex in a wireless communication system A Radio Frequency (RF) front-end apparatus in a wireless communication system is provided. The apparatus includes a plurality of BandPass Filters (BPFs) for band-pass filtering a transmission signal or a reception signal, at least one circulator for dividing a signa... | 05/24/2011 |
| 7929467 | Method for transmitting TDD frames with increased data payload Method for transmitting through a bidirectional communication channel at least one conventional frame (CVFR) split into time slots SLj (for j=1 to L) separated from each other by guard intervals G, each time slot SLj being allocated either to a first or to a second ... | 04/19/2011 |
| 7929468 | Method for improving coexistence between adjacent TDD and FDD wireless networks A method for reducing interference between FDD and a TDD interfering radio networks including identifying respective radio entities for which the interferences should be reduced; defining a time pattern comprising time slots on each of the interfered channels, and r... | 04/19/2011 |
| 7911986 | Apparatus and method for measuring bi-directional radio channel having multiple antenna An apparatus and method for measuring bi-directional radio channel with multiple antenna are provided. The apparatus includes a transmitter for amplifying a signal that is frequency-up converted to radio frequency and removing a signal of other frequency band, a hig... | 03/22/2011 |
| 7907554 | Method of communication between mobile station and base station in mobile communication system Method of communication between a mobile station and a base station in a mobile communication system of IMT-2000 communication network basis, which is suitable for effective transmission of various multimedia information within a given channel capacity, the method i... | 03/15/2011 |
| 7907553 | Method of communication between mobile station and base station in mobile communication system Method of communication between a mobile station and a base station in a mobile communication system of IMT-2000 communication network basis, which is suitable for effective transmission of various multimedia information within a given channel capacity, the method i... | 03/15/2011 |
| 7907552 | MIMO communication system with user scheduling and modified precoding based on channel vector magnitudes A multiple-input, multiple-output (MIMO) communication system is configured to perform user scheduling and associated precoding. The system includes multiple terminals and at least one base station configured to communicate with the terminals. The base station is op... | 03/15/2011 |
| 7881237 | Compensation for residual frequency offset, phase noise and I/Q imbalance in OFDM modulated communications A method and apparatus for processing a radio frequency signal. The method includes compensating a digital in-phase signal and a digital quadrature signal for any imbalance; converting the compensated digital in-phase signal and the compensated digital quadrature si... | 02/01/2011 |
| RE42068 | Method and apparatus for reducing co-channel interference in a frame-synchronized wireless communication system The present invention is a method and apparatus for reducing co-channel interference. The present invention includes a powerful means for eliminating co-channel interference from base stations in a wireless communication system. The present co-channel interference r... | 01/25/2011 |
| 7876716 | Base station apparatus and radio communication method A base station (10) performs bi-directional radio communications with terminal station apparatuses using communication frames each having time slots and being composed of a first region with a predetermined open-loop period and a second region with an open-lo... | 01/25/2011 |
| 7860036 | Methods and apparatus for including mode information in a frame for system acquisition Methods and apparatus for including mode information in a wireless transmission frame, which is useful for system acquisition. In particular, a first information bit is provided in a preamble of a transmission frame, where the bit is configured to indicate that a wi... | 12/28/2010 |
| 7855983 | Time division duplex front end module An RF module adapted for direct surface mounting to the top surface of the front end of the motherboard of a wireless base station such as, for example, a femtocell. The module comprises a printed circuit board having a plurality of direct surface mounted electrical... | 12/21/2010 |
| 7808934 | TDD frame format in wireless mesh network In a wireless mesh network a method includes, at a first node, receiving a transmission from a second node during a first sub-frame of a frame with a first transceiver operating with a first center frequency; processing the received transmission; and transmitting, a... | 10/05/2010 |
| 7778208 | Wireless communication system for time division duplex Disclosed is a wireless communication system applicable to a time-division duplex transceiver system. The time-division duplex mobile communication system can achieve miniaturization, low power consumption and low costs by using a frequency conversion circuit includ... | 08/17/2010 |
| 7733814 | Separation and combination of multiple channels in a bi-directional time-division communication system A time-division communication system wirelessly receives a communication signal during receive time periods and wirelessly transfers a communication signal during transmit time periods. These communication signals have multiple receive and transmit channels. The com... | 06/08/2010 |
| 7706308 | Wireless communication system and method for offering hybrid duplexing technology Disclosed is a wireless communication system for providing a service in a time division duplexing (TDD) mode and a frequency division duplexing (FDD) mode according to a duplexing mode determination factor of a mobile station in a base station communicating with the... | 04/27/2010 |
| 7693094 | Apparatus for bidirectional communication using auxiliary band in wireless communication system An apparatus for bidirectional communication using one or more auxiliary bands in a wireless communication system is provided. A primary band transmitter transmits data over one or more primary bands in a frame. A primary band receiver receives data over the one or ... | 04/06/2010 |
| 7668122 | Communication apparatus using a transmission medium and method for the same Provided is communication apparatus and method using a transmission medium, in an environment where at least one transmitter and at least one receiver are connected to at least one human body which is a conductive transmission medium, in which the receiver requiring... | 02/23/2010 |
| 7639635 | Cellular communication system and method for coexistence of dissimilar systems A cellular communication system comprises first and second serving communication units supporting respective first and second time division duplex (TDD) modes of operation on respective first and substantially frequency-adjacent second frequency channels comprising ... | 12/29/2009 |
| 7626953 | Communications networks A communications network comprising a plurality of first stations and a plurality of second stations, said first stations being arranged to communicate with the second stations, said first and second stations being arranged so that each of said first and second stat... | 12/01/2009 |
