Abstract: A method for determining a corrected estimated variance representative of the condition of reception of signals representative of symbols transferred by an emitter to a receiver through a communication channel. The method includes, executed by the receiver, producing an estimation of the variance by a Wiener channel estimator comprising a linear filter of which coefficients are determined at least from a given average signal to interference plus noise ratio value. The method further includes, executed by the receiver, multiplying the estimation of the variance by a correction factor. The value of the correction factor, being dependent at least on the number of coefficients of the linear filter of the Wiener channel estimator.

Abstract: A method for transmitting data including a plurality of data streams in a wireless system. The method includes receiving one or more data streams; mapping the received data streams to an additional physical slot; configuring one or more frames including the additional physical slots; and transmitting the one or more frames at one or more radio frequencies.

Abstract: A method for transmitting data including a plurality of data streams in a wireless system is described. The method includes receiving one or more data streams; mapping the received data streams to at least one logical frame; mapping the logical frame to more than one additional physical slot; configuring each of the more than one additional physical slot includes signaling information for receiving the data streams; and transmitting at least one superframe including the more than one additional physical slot.

Abstract: A method for transmitting signaling information for reception of a broadcast service in a digital broadcasting system is provided. The method includes generating signaling information that includes a network information table indicating information about a transport network over which broadcast service data is transmitted, and a service information table indicating at least one broadcast service and information about at least one Physical Layer Pipe mapped to the at least one broadcast service, and transmitting the signaling information in a Generic Stream Encapsulation packet.

Abstract: A method for mapping of one or more logical channels onto a radio frequency channel in a communication system is provided. The method includes determining a logical channel type from a plurality of logical channel types, and mapping at least one logical frame of the determined logical channel type to at least one physical frame on at least one Radio Frequency (RF) channel based on the determined logical channel type.

Abstract: A wireless communication unit comprising a transmitter and a signal processor are provided. The signal processor is arranged to map service data onto a first set of multiple Physical Layer Pipes (PLPs), map the first set of PLPs onto a first set of logical frames, and form a first logical channel comprising the first set of logical frames. A structure of the logical frames is composed of PLPs of a plurality of different data types.

Abstract: Methods and apparatus are provided for transmitting and receiving data streams. The data streams are received. The data streams are mapped to a physical slot. At least one frame that includes the physical slot is formed. The at least one frame is transmitted through at least one radio frequency. The at least one frame is received through at least one radio frequency. A location of the physical slot included in each frame is obtained. The data streams allocated to the physical slot in the location are received. The physical slot includes bit information indicating a number of antennas transmitting the at least one frame.

Abstract: A method and apparatus for transmitting data are provided. In the method, data streams are mapped onto frames, a word is generated including information for receiving the data streams for a given frame, and parity bits are derived from the word for the given frame. The data is arranged in the frames. Each of the frames includes a preamble and a data section. The preamble and the data section are time-multiplexed. The data section includes at least a part of the data streams, and the preamble includes signaling information. The word is inserted in a preamble section of the given frame, and one of the parity bits is inserted in a preamble section of a prior frame preceding the given frame. A part of the word for the given frame is inserted within a data section of an earlier frame preceding the prior frame. The frames are then transmitted.

Abstract: A method and apparatus for transmitting and receiving signaling information for receiving broadcast services in a digital broadcasting system. The method includes generating service guide information including broadcast service data, information about a transmission network where the broadcast service data is transmitted, and information about a transmission network neighboring the transmission network, and transmitting the service guide information in an upper layer of an Internet Protocol (IP) layer.

Abstract: An apparatus and a method for transmitting and receiving a signal in a communication system are provided. The method includes checking a type of the signal to be transmitted; determining a number of puncture bits according to the type of the signal; and puncturing an encoded signal to be transmitted according to the number of puncture bits.

Abstract: A method and apparatus are provided for transmitting and receiving data through a frame in a wireless communication system, the method including: generating a frame including a preamble section and a data section, the preamble section includes fixed data items and configuration data items, and the data section includes at least one Physical Layer Pipe (PLP); and transmitting the generated frame, wherein the configuration data items related to the at least PLP, the preamble section of the frame is generated according to repetition lengths of the configuration data items.

Abstract: A method and an apparatus for encoding, transmitting, and receiving signaling information in a broadcasting/communication system are provided. The method includes generating the signaling information which comprises a plurality of pieces; determining a number of coded blocks to which the signaling information is to be encoded, based on a number of bits of the signaling information and a number of encoder input information bit; segmenting each piece of the signaling information based on the number of the coded blocks; constructing input information bits of each coded block to include segmented parts of each piece of the signaling information; encoding the input information bits to each coded block; and transmitting each coded block.

Abstract: A method for transmitting data including a plurality of data streams in a wireless system. The method includes receiving one or more data streams; mapping the received data streams to an additional physical slot; configuring one or more frames including the additional physical slots; and transmitting the one or more frames at one or more radio frequencies.

Abstract: An apparatus and method for transmitting and receiving data in a wireless communication is provided. The method includes determining a number of zero-padding bits, determining a number (Npad) of bit groups in which all bits are padded with zeros, padding the all bits within 0th to (Npad?1)th bit groups indicated by a shortening pattern with zeros, mapping information bits to bit positions which are not padded in Bose Chaudhuri Hocquenghem (BCH) information bits, BCH encoding the BCH information bits to generate Low Density Parity Check (LDPC) information bits, and LDPC encoding the LDPC information bits to generate a zero-padded codeword, wherein the shortening pattern is defined as an order of bit groups defined as 6, 5, 4, 9, 3, 2, 1, 8, 0, 7, 10 and 11.

Abstract: Methods and apparatus for transmitting and receiving data having a data stream in a wireless broadcast system are provided. A frame is generated. The frame includes preamble section and a data section. The data section carries the data stream. The preamble section carries signalling information. The frame is transmitted to a receiver. In generating the frame, the data section of the frame is segmented into a plurality of frequency zones, and the data stream is mapped to a frequency zone of the plurality of frequency zones. The signalling information includes segmentation information of the frequency zones.

Abstract: Methods and apparatus are provided for transmitting and receiving a data stream in a digital video broadcast system. The data stream is segmented into a plurality of segments of the data stream. A frame is generated. The frame includes a preamble section and a data section. The data section carries the data stream, and the preamble section carries signalling information. The frame is transmitted to a receiver. In generating the frame, the data section of the frame is segmented into a plurality of frequency zones, and at least one segment of the data stream is mapped to a frequency zone of the plurality of frequency zones. The signalling information includes first segmentation information of the data stream and second segmentation information of the plurality of frequency zones.

Abstract: A method of operation of a transmitting node in an Orthogonal Frequency Division Multiplexing (OFDM) communication system is provided. The method includes generating a frame including a plurality of physical layer zones, each of the plurality of physical layer zones applying different Fast Fourier Transform (FFT) sizes and different pilot patterns; and transmitting the frame.

Abstract: A method and apparatus for transmitting a plurality of data streams in a wireless broadcast system are provided. The method includes mapping the plurality of data streams onto a super-frame that includes a plurality of frames; inserting signalling information in a first signalling information field for assisting in the reception of a first number of said plurality of data streams for a given frame, the first number being less than or equal to a limit applicable to each of the plurality of frames; dependent on a number of data streams for the given frame being greater than the limit, inserting signalling information in a second signalling information field; inserting said first and second signalling information fields in a preamble section of said given frame; and transmitting the plurality of frames.

Abstract: A method for determining if a handover of a half-duplex terminal has to be executed from a first base station to a second base station, the half-duplex terminal not transferring and not receiving signals during a period of time, called an idle period. The first base station transfers to the half-duplex terminal a downlink signal in the cell of the first base station. The first base station receives a message in response to the downlink signal including information relative to quality measurements on the downlink signal transferred by the first and the second base stations. The first base station determines the round trip delay between the half-duplex terminal and the second base station. The first base station further transmits a handover notification message to the half-duplex terminal instructing the half-duplex terminal to execute a handover procedure from the first base station to the second base station.

Abstract: The present invention concerns a method for determining in a wireless cellular telecommunication network in which a half duplex terminal is handled by a first base station, if a second base station is able to handle the half-duplex terminal, characterized in that the method comprises the steps, executed by the half duplex terminal, of: receiving signals from the first base station and from the second base station, determining quality measurements for the signals, determining the time period between the reception of the signal transferred by the first base station and the reception of the signal transferred by the second base station, determining if the second base station is able to handle the half-duplex terminal according to at least the quality measurements and the time period.