Samsung Electronics Co., Ltd.

Kyonggi University Industry & Academia Cooperation Foundation

Sony Corporation

Hewlett-packard Development Company, L.p.

Panasonic Corporation

Tdk Corporation

Hitachi Consumer Electronics Co., Ltd.

Sung-hee Hwang

Kyung-geun Lee

Hyun-Koo Yang

Jung-wan Ko

Jung-Wan Ko

Kyung-Mo Park

Sung-oh Hwang

Yoon-woo Lee

Alain Mourad

Seho Myung

Hak-ju Lee

Joon-Hwan Kwon

Jae-Hyeon Bae

Young-ho Oh

Young-Wan So

Sung-Ryeul Rhyu

Sung-hyu Han

In-oh Hwang

Sang-Hyun Ryu

Young-im Ju

In-sik Park

Belkacem Mouhouche

Byoung-Dai Lee

Daniel Ansorregui

Hyun-jeong Park

Hyo-jin Sung

Harukazu Miyamoto

Motoshi Ito

Hiroyasu Inoue

Jae-seong Shim

Yasumori Hino

Shoei Kobayashi

Hyun-kwon Chung

Koichiro Nishimura

Se-Ho Myung

Charles Robert Weirauch

Taek-Seong Jeong

Jin-han Kim

Ki-hyun Kim

Young-Kwon Lim

Yoshihiro Akimoto

Hyung-koo Yang

Hyo-lin Sung

Jung-won Ko

Du-seop Yoon

Hyun-Soo Park

Sung-ryul Yun

Byung-Rae Lee

Tae-Kyung Kim

Won-hee Lee

Bo-Gyeong Kang

Seung-Min Lee

Joong-eon Seo

Jae-Cheol Bae

Moon-il Jung

Mun-seok Kim

Joo-seon Kim

Kyung-goun Lee

In-ho Hwang

Sang-hyun Ryu

Provided are a data structure including a header area, and a payload area comprising data, a method of generating the data structure, and extracting information from the data structure. At least one of the header area and the payload area includes at least one sub-area in which one or more signal fields are included. At least one signal field among the signal fields includes information for signalling presence or absence of one or more information fields located at least partly in the data structure, the one or more information fields corresponding to the one or more signal fields.

Data structure for physical layer encapsulation

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.

Transmitting apparatus, receiving apparatus and controlling method thereof

A transmitting apparatus is provided. The transmitting apparatus includes: a packet generator generating a packet including a header and a payload from an input stream including a plurality of input packets; and a signal processor signal-processing the packet, wherein the header includes a base header which includes: a first field indicating a packet type of the input packets; wherein when the first field is set to a value indicating that the packet type of the input packets is a TS packet, the base header comprises a second field indicating a number of TS packets included in the payload and a third field set to a first value indicating that the header of the packet does not comprises an additional header or a second value indicating that the header of the packet further comprises the additional header, and wherein the third field is set to the second value when TS header compression to remove at least one header of the TS packets is applied to generate the packet.

Transmitting apparatus and signal processing method using removal of transport steam packet header

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.

Transmitting apparatus and receiving apparatus and controlling method thereof

The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.

Method and apparatus for transmitting and receiving packet in communication system

A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: a baseband packet generator configured to, based on an input stream including a first type stream and a second type stream, generate a baseband packet including a header and payload data corresponding to the first type stream; a frame generator configured to generate a frame including the baseband packet; a signal processor configured to perform signal-processing on the generated frame; and a transmitter configured to transmit the signal-processed frame, wherein the header includes a type of the payload data in the baseband packet and the number of the first type stream packets in the baseband packet.

Transmitting apparatus, receiving apparatus, and signal processing method thereof

A transmitting apparatus is provided. The transmitting apparatus includes: a baseband packet (BBP) generator configured to generate a BBP including a header and payload data; a frame generator configured to generate a frame including the BBP; a signal processor configured to signal-process the generated frame; and a transmitter configured to transmit the signal-processed frame. The header includes information about a type of the payload data, whether an additional header exists, a length of the payload data, and a Least Significant Bit (LSB) of the length of the payload data. Therefore, various types of data are mapped on a physical layer based on information included in the header, and data processing efficiency is improved.

Transmitting apparatus, receiving apparatus, and controlling methods thereof

A method of operating a transmitting apparatus in a multimedia system is provided. The method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet, wherein the link layer packet includes a header including information indicating whether the link layer packet includes a single network layer packet and information indicating an identifier related to the at least one network layer packet.

Apparatus and method for transmitting and receiving signal in multimedia system

A transmitting apparatus and an operating method for the apparatus in a multimedia system are provided. The operating method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet. The link layer packet includes a header including information indicating a packet type of the at least one network layer packet, information indicating whether the link layer packet includes a single network layer packet, and information indicating an identifier related to the at least one network layer packet.

A method for encoding a packet in a broadcasting system supporting an Internet Protocol (IP)-based multimedia service is provided. The method includes dividing a data stream into data payloads, generating a Motion Picture Expert Group (MPEG) Media Transport (MMT) packet by adding a first header to each of the data payloads, and generating a source packet by adding an MMT packet header to the MMT packet and performing Forward Error Correction (FEC) encoding on the header-added MMT packet. The MMT packet header includes type information of the MMT packet.

Method and apparatus for transmitting and receiving packet in a communication system

A method and apparatus for transmitting or receiving service signaling for a broadcasting service is disclosed. The method for transmitting service signaling for a broadcasting service comprises the steps of: generating a first packet stream including first media data by a first transmission protocol; generating a second packet stream including second media data by a second transmission protocol; generating a user service description including service signaling related to at least one of the first packet stream and the second packet stream; and transmitting the first packet stream, the second packet stream, and the user service description.

Method and apparatus for transmitting or receiving service signaling for broadcasting service

A method for generating a packet of transmitting apparatus is provided. The method includes: setting a value of a Deleted Null Packet (DNP) counter to zero; increasing the value for each deleted null packet preceding a non-null transport stream (TS) packet; and generating a packet comprising a header and a payload, wherein the header includes a DNP field, the payload includes the non-null TS packet, and the value of the DNP counter is used to set the DNP field.

Transmitting apparatus, receiving apparatus and signal processing method thereof

A method for sending forward error correction (FEC) configuration information by a sending apparatus in a multimedia system is provided. The method includes sending source FEC configuration information for an FEC source packet to a receiving apparatus, wherein the source FEC configuration information includes information related to an FEC source or repair packet that is sent first among at least one FEC source or repair packet if an FEC source or repair packet block includes the at least one FEC source or repair packet.

Apparatus and method for sending/receiving packet in multimedia communication system

Growing community of inventors

Seoul, South Korea

Sung-hee Hwang