Samsung Electronics Co., Ltd.

Yonsei University

Young-ho Oh

Hak-ju Lee

Joo-sung Park

Sung-ryul Yun

Jae-Hyeon Bae

Sung-hee Hwang

Hyun-Koo Yang

Se-ho Myung

Daniel Ansorregui Lobete

Belkacem Mouhouche

Jong-Soo Seo

Jae-Sung Han

Hak-jin Kim

Javier Morgade Prieto

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.

Transmitting apparatus and receiving apparatus and controlling method thereof

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 reserved tones.

Method for determining reserved tones and transmitter for performing PAPR reduction using tone reservation

A transmitter includes: a frame generator configured to generate a frame including a frame starting symbol, at least one data symbol and a frame closing symbol; a pilot and reserved tone inserter configured to insert pilots and reserved tones in at least one of the frame starting symbol, the data symbol and the frame closing symbol such that positions of the reserved tones do not overlap positions of the pilots in the at least one of the frame starting symbol, the data symbol and the frame closing symbol; and a transmitter configured to transmit the frame in which the pilots and the reserved tones are inserted, wherein the reserved tones are not used to transmit data in the frame.

Transmitter, receiver and controlling method thereof

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; 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; randomly re-arranging an order of the preliminarily determined carrier indices of the reserved tones; and calculating the comparison reference average value while changing each of the re-arranged indices of the reserved tones, and finally determining carrier indices for which the calculated comparison reference average value becomes the smallest value as carrier indices of the reserved tones.

Method for determining reserved tones and transmitter for performing parr reduction using tone reservation

A transmission device is disclosed. The transmission device comprises a signal generation unit for generating a broadcast signal including a service, and a transmission unit for transmitting the broadcast signal through at least one radio frequency (RF) channel. A broadcast stream transmitted through the RF channel includes signaling for the service, the signaling for the service including information indicating whether the service is transmitted through a plurality of RF channels, and information indicating whether the broadcast stream transmitted through the RF channel contains an essential portion of the service.

Device and method for transmitting media data across multiple frequency bands

A transmitting apparatus is provided. The transmitting apparatus includes: a frame generator configured to generate a frame including a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and a guard interval (GI) inserter configured to insert GIs into the generated frame, wherein the plurality of OFDM symbols are divided into a bootstrap, a preamble, and a payload, and the GI inserter inserts first GIs having a size corresponding to a fast Fourier transform (FFT) size of each of OFDM symbols configuring the payload into front ends of each of the OFDM symbols, inserts second GIs having a size corresponding to a quotient obtained by dividing an extra region of the payload calculated based on the FFT size of the OFDM symbols configuring the payload, the number of OFDM symbols, and the size of the first GIs by the number of OFDM symbols into front ends of each of the first GIs, and inserts a cyclic postfix (CP) having a size corresponding to the remainder remaining after dividing the extra region of the payload by the number of OFDM symbols into a rear end of a final OFDM symbol configuring the payload.

A method of determining reserved tones for reduction of a peak to average power ratio (PAPR) includes: selecting carrier indices for the reserved tones and generating a kernel signal based on the selected carrier indices; calculating a comparison reference average value of the kernel signal, selecting one of the calculated comparison reference average value and a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the selection; re-arranging an order of the preliminarily determined carrier indices; calculating a comparison reference average value of a kernel signal generated, whenever each of the re-arranged carrier indices is changed to another carrier index, to generate a plurality of comparison reference average values, and finally determining carrier indices of the reserved tones which generates a kernel signal having the smallest comparison reference average value among the comparison reference average values as the indices of the reserved tones.

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 kernel signal having the smallest comparison reference average value among the comparison reference average values as indices of the reserved tones.

A transmission device is disclosed. The transmitting device comprises a processor for generating a packet comprising a header and a payload, on the basis of an input packet, and generating a frame comprising the generated packet, and a transmission unit for transmitting a signal generated on the basis of the frame. The processor inserts padding into at least one packet from among a plurality of packets included in the frame, on the basis of the number of packets included in the frame, the length of each input packet included in the frame, and the lengths of the packets. Here, the boundary of an input packet may be included in a packet into which padding is inserted.

Transmitting device which generates a physical layer packet by inserting padding and transmitting method thereof

A receiver is disclosed. The present receiver comprises: a reception unit for receiving, through a channel, a frame in which an LLS for each broadcast service is included in different PLPs; and a signal processing unit for calculating the size of a memory required to time-deinterleave the PLPs including the LLS, and for processing the PLPs including the LLS, on the basis of the calculated size of the memory.

Growing community of inventors

Suwon-si, South Korea

Young-ho Oh