Patent application number | Description | Published |
20080232278 | Method and Apparatus for Communicating Downlink and Uplink Sub-Frames in a Half Duplex Communication System - A method communicating downlink and uplink sub-frames between a base and at least one half duplex user equipment. For a scheduled synchronization time, beginning of reception of an effective part of the uplink sub-frame is separated from end of transmission of an effective part of the first downlink sub-frame by a duration of the difference between a single idle period and an incremental timing advance value. The single idle period, having a duration greater than or equal to summation of downlink/uplink and uplink/downlink required minimum idle durations, is reserved in the end of the first downlink sub-frame or the beginning of the uplink sub-frame, or both. The incremental timing advance value is greater than or equal to the uplink/downlink required minimum idle duration and lower than or equal to the difference between the duration of the single idle period and the downlink/uplink required minimum idle duration. | 09-25-2008 |
20080240003 | TRANSMISSION METHOD IN A WIRELESS TELECOMMUNICATION SYSTEM INCLUDING AT LEAST A BASE STATION INTENDED TO COMMUNICATE WITH TERMINALS - The present invention concerns a transmission method in a wireless telecommunication system including at least a base station intended to communicate with terminals over bidirectional communication channels, each channel supporting frames being divided into downlink sub frames and uplink sub frames, each downlink sub frame including a number of symbols intended to be transmitted to at least two terminals, wherein the transfer of at least one supplementary symbol between the base station and at least one terminal that can receive or transmit said at least one supplementary symbol during the time delay is enabled,
| 10-02-2008 |
20090207760 | METHODS AND DEVICES FOR DETERMINING IF A BASE STATION CAN NOT HANDLE A TERMINAL - The present invention concerns a method for determining, in a wireless cellular telecommunication network, if a base station can not handle a half-duplex terminal, the base station transferring signals in a cell of the base station, the half-duplex terminal, when being handled by the base station, not transferring and not receiving signals during a period of time, called idle period of the cell of the base station. The base station:
| 08-20-2009 |
20100014413 | METHOD OF MULTI-ANTENNA WIRELESS DATA EMISSION, EMITTER AND RECEIVER USING THE METHOD - A method and device in the domain of wireless communication, and more specifically coding and decoding schemes useful in the context of MIMO (Multiple Input Multiple Output) or MISO (Multiple Input Single Output) communications especially used in conjunction of OFDM-like transmission schemes. A space frequency block code applies some well chosen two by two space frequency block codes to each pair of frequencies κ and κ+N/2. The proposed SFBC keep the constant envelope property for each antenna while leading to a good performance by introducing some spatial diversity. | 01-21-2010 |
20100040164 | METHOD OF RATIO DATA EMISSION, EMITTER AND RECEIVER USING THE METHOD - Coding and decoding schemes useful in the context of MIMO (Multiple Input Multiple Output) or MISO (Multiple Input Single Output) communications especially used in conjunction of OFDM-like transmission schemes. A space frequency block code (SFBC) is based on the simultaneous use of two variants of Alamouti codes in the frequency domain, each kind of Alamouti code being applied to well-chosen pair of frequencies. The proposed SFBC keeps the constant envelope property for each antenna while leading to performance equal or very close to the pure Alamouti STBC performance. | 02-18-2010 |
20100091903 | SC-QOSTFBC CODES FOR MIMO TRANSMITTERS - A SC-QOSTFBC (Single Carrier-Quasi Orthogonal Space Time Frequency Block Code) for 4 transmit antennas in the domain of wireless communication, and coding and decoding schemes useful in the context of MIMO (Multiple Input Multiple Output) or MISO (Multiple Input Single Output) communications especially used in conjunction of OFDM-like transmission schemes. These codes are based on sending on a first antenna a constellation corresponding to what would be sent in a mono antenna scheme, and sending equivalent constellations on the other antennas. The codes are designed to keep a low-PAPR property at each transmit antenna when associated with DFT spread OFDM. | 04-15-2010 |
20100173612 | METHOD FOR SETTING OR MAINTAINING A PREFERENTIAL CONDITION FOR A MOBILE TERMINAL - The present invention concerns a method for setting or maintaining a preferential condition for a mobile terminal when the mobile terminal is involved in a communication with a remote telecommunication device. The method comprises the steps of:
| 07-08-2010 |
20100197338 | METHOD AND A DEVICE FOR ADJUSTING THE TRANSMISSION POWER OF SIGNALS - The present invention concerns a method for adjusting the transmission power of signals transferred by or to a first base station, the first base station being located in the cell of a second base station, the first base station:
| 08-05-2010 |