Abstract: A method for transmitting information is provided. The method for transmitting information comprises the steps of: mapping signalling information to one or more preamble symbols of a first frame, mapping data to one or more data symbols of the first frame, dividing additional information into two or more parts, mapping a first part of the additional information to one or more preamble symbols of the first frame, mapping a second part of the additional information to at least one of (i) one or more data symbols of the first frame, and (ii) one or more preamble symbols of a second frame and transmitting the frames.

Abstract: Apparatus and method for transmitting and receiving a frame including control information in a broadcasting system are provided. A frame for a broadcast service is generated including at least one Physical Layer Pipe (PLP) and indication information for indicating a change/no-change of control information for the broadcast service in the next frame. The indication information includes information on a position in which the control information will change.

Abstract: Apparatus and method for receiving a frame including control information in a broadcasting system are provided. A frame for a broadcast service is received and includes at least one Physical Layer Pipe (PLP) and indication information for indicating a change/no-change of control information for the broadcast service in the next frame. Indication information, which includes information on a position in which the control information will change, is extracted from the frame and used to determine the position in which the control information will change.

Abstract: A method for reducing Peak-to-Average Power Ratio (PAPR) in a Single Carrier Frequency Division Multiple Access (SC-FDMA) based radio communication system is provided. The method includes arranging symbols mapped to predetermined sub-carrier allocation types such that phases of the symbols do not overlap, and transmitting the arranged symbols.

Abstract: A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: an input processor configured to process a plurality of input streams to generate a plurality of base band frames; a bit interleaved and coded modulation (BICM) processor configured to perform forward error correction (FEC) coding, constellation mapping, and interleaving on the plurality of baseband frames; a symbol generator configured to add signaling data to the plurality of baseband frames output from the BICM processor to generate an orthogonal frequency division multiplexing (OFDM) symbol; and a transmitter configured to select at least one of a plurality of pilot patterns based on a fast Fourier transform (FFT) size and a guard interval fraction, insert a pilot in the OFDM symbol according to the selected pilot pattern, and transmit a stream including the pilot-inserted OFDM symbol.

Abstract: A method of mobile printing using near field communication (NFC) includes executing a mobile printing application installed in a mobile device; setting a wireless connection for data transmission between the mobile device and an image forming apparatus by performing NFC tagging on the image forming apparatus with the mobile device; and automatically performing a function corresponding to a status of the mobile printing application when NFC tagging is performed.

Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a first frame provided for a fixed terminal and a second frame provided for a mobile terminal, the second frame including common service data commonly provided for the fixed terminal and the mobile terminal; an information inserting unit configured to insert access information on the common service data into a signaling area of the first frame; and a transmitter configured to transmit the first and second frames.

Abstract: A transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of OFDM symbols; and a signal processor configured to signal-process the generated frame, wherein the plurality of OFDM symbols are included in a bootstrap, a preamble including an L1 basic and an L1 detail, and a payload, and wherein the bootstrap includes information on an FFT size of the OFDM symbols included in the preamble, a length of a guard interval (GI) inserted in the preamble, and a pattern of a preamble pilot inserted in the preamble, and information on an L1 basic mode.

Abstract: A method of writing a near field communication (NFC) tag using a mobile terminal includes establishing a wireless connection between the mobile terminal and an image forming apparatus, extracting a predetermined field value corresponding to a data structure of the NFC tag from information collected while establishing the wireless connection, generating tag information including the predetermined field value by arranging the predetermined field value according to the data structure, and writing the tag information to the NFC tag through NFC tagging.

Abstract: A method is provided for channel encoding in a communication system using a Low-Density Parity Check (LDPC) code. The method includes grouping information bits into a plurality of groups; determining an order of the plurality of groups to be shortened, based on whether a specific region in a frame is to be LDPC-encoded, where the specific region has a different ratio of a number of bits to be shortened to a number of bits to be punctured; determining a length of an information word to be obtained by shortening the plurality of groups; shortening the plurality of groups on a group basis in the determined order based on the determined length of the information word; and LDPC-encoding a shortened information word.

Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kerneal signal having the smallest comparison reference average value among the comparison reference average values as indices of the rese

Abstract: A transmitting apparatus is provided. The transmitting apparatus includes at least one processor configured to implement: an L1 signaling generator configured to generate L1 signaling; a frame generator configured to generate a frame having a payload in which a plurality of Physical Layer Pipes (PLPs) are included; and a signal processor configured to transmit the frame by adding a preamble including the L1 signaling in the frame. The L1 signaling includes first information representing an alignment state of starting positions of PLPs included in different layers among the plurality of PLPs and second information representing at least one offset of the starting positions. Accordingly, the preamble includes the L1 signaling including information on an arrangement order of the plurality of PLPs included in the payload.

Abstract: A method of mobile printing using near field communication (NFC) includes checking a version of firmware installed in an image forming apparatus; determining whether the checked version of the firmware supports Wi-Fi Direct connection via automatic transmission of a personal identification number (PIN); updating the firmware installed in the image forming apparatus when the checked version of the firmware does not support Wi-Fi Direct connection via automatic transmission of a PIN; encrypting and storing a PIN in an NFC tag attached to the image forming apparatus; setting a Wi-Fi Direct connection by receiving the stored PIN and automatically transmitting the PIN to the image forming apparatus by the mobile device when the mobile device is NFC-tagged to the image forming apparatus; and performing mobile printing via the Wi-Fi Direct connection.

Abstract: An apparatus and method for transmitting a preamble in a Digital Video Broadcasting (DVB) system are provided. The apparatus includes a first processor for generating a Modulation Signaling Sequence (MSS) using a plurality of received sequences, and for outputting a modulated sequence by differentially modulating the MSS. The apparatus also includes a scrambler for scrambling the modulated sequence by multiplying the modulated sequence by a scrambling sequence. A second processor receives the scrambled sequence through each allocated subcarrier, converts the received sequence into a time-domain signal, and generates and transmits the preamble.

Abstract: A method of mobile printing using near field communication (NFC) includes executing a mobile printing application installed in a mobile device; setting a wireless connection for data transmission between the mobile device and an image forming apparatus by performing NFC tagging on the image forming apparatus with the mobile device; and automatically performing a function corresponding to a status of the mobile printing application when NFC tagging is performed.

Abstract: Methods and apparatuses are provided for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system. Reserved tones are determined in previously determined locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame. A signal is transmitted through the reserved tones in a period for which the preamble is transmitted. If a Fast Fourier Transform (FFT) size is 8K, locations of the reserved tones are determined in accordance with a specified chart.

Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.

Abstract: A method for transmitting information is provided. The method for transmitting information comprises the steps of: mapping signalling information to one or more preamble symbols of a first frame, mapping data to one or more data symbols of the first frame, dividing additional information into two or more parts, mapping a first part of the additional information to one or more preamble symbols of the first frame, mapping a second part of the additional information to at least one of (i) one or more data symbols of the first frame, and (ii) one or more preamble symbols of a second frame and transmitting the frames.

Abstract: Provided is a method of controlling an operation of an image forming apparatus by using a wearable device, the method including operations of converting a task performance request related to a task, which is transmitted from the wearable device, into an execution instruction of a first application that controls the operation of the image forming apparatus; requesting, as the first application is executed based on the execution instruction, the image forming apparatus to perform the task; and receiving, as the task is performed by the image forming apparatus, information indicating a task performance result related to the task from the image forming apparatus.

Abstract: Methods and apparatuses are provided for transmitting data. A codeword is generated by encoding an information word. Parity bits of the codeword are grouped into a plurality of groups. The parity bits are interleaved according to a predetermined order. One or more of the interleaved parity bits are punctured to generate a punctured codeword. A frame including a portion of the punctured codeword is transmitted.