Samsung Electronics Co., Ltd.

Belkacem Mouhouche

Daniel Ansorregui Lobete

Hong-Sil Jeong

Se-ho Myung

Kyung-joong Kim

Se-Ho Myung

Kyung-Joong Kim

Ansorregui Daniel Lobete

Hong-sil Jeong

Alain Mourad

Hak-ju Lee

Daniel Ansorregui

Sung-hee Hwang

Hak-Ju Lee

Young-ho Oh

David Gutierrez Estevez

Sung-Hee Hwang

Maziar Nekovee

Alain Abdel-Majid Mourad

Galini Tsoukaneri

Mohammed Al-Imari

Javier Morgade Prieto

Sungryul Yun

The present disclosure relates to a pre-5G or 5G communication system to be provided for supporting higher data rates beyond 4G communication system such as LTE. A method for switching from a first data transmission mode to a second data transmission mode comprising a NG-RAN node, a core node and a content provider, wherein method comprises transmitting, by NG-RAN node, first data from content provider to a UE according to first data transmission mode in a first session; deciding, by UE or NG-RAN node or core node or content provider, to switch from first data transmission mode to second data transmission mode; initializing, by core node, a second session for second data transmission mode; switching, by core node, from first data transmission mode to second data transmission mode; and transmitting, by NG-RAN node, second data from content provider to UE according to second data transmission mode in second session.

Method and apparatus for transmission mode switching in wireless communication system

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

A method for generating a non-uniform constellation is provided. The method comprises the step of performing a first process, the first process comprising the steps of: obtaining a first constellation defined by one or more parameter values; and generating a second constellation based on the first constellation using a second process. The second process comprises the steps of: obtaining a set of candidate constellations, wherein the set of candidate constellations comprises the first constellation and one or more modified constellations, wherein each modified constellation is obtained by modifying the parameter values defining the first constellation; determining the performance of each candidate constellation according to a predetermined performance measure; selecting the candidate constellation having the best performance as the second constellation.

Non-uniform constellations

A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

Transmitting apparatus and mapping method thereof

A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding of input bits based on a parity check matrix including information word bits and parity bits, the LDPC codeword including a plurality of bit groups each including a plurality of bits; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the interleaver is further configured to interleave the LDPC codeword such that a bit included in a predetermined bit group from among the plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

Transmitting apparatus and interleaving method thereof

Transmitting apparatus and modulation method thereof

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Staines, United Kingdom

Belkacem Mouhouche