The rate-matching is to extract the exact set of bits to be transmitted within a given TTI . The rate-matching for Turbo coded transport channels is defined for each code block: there are three basic steps composing a rate-matching. Namely, sub-block interleaver, bit collection, and bit selection.
Read moreWhat is code word in 5G?
The output of a coding chain is a codeword. 5G supports transmission of up to 8 layers to a single user on the downlink. This means that there can be up to eight streams transmitted in parallel.
Read moreWhat is code block in LTE?
for code block segmentation used on LTE-Advanced channel coding physical layer (PHY) is presented in this paper. Code block segmentation is a generic procedure which is commonly applied before turbo encoding . Its main function is to fragment a large transport block into smaller code blocks.
Read moreWhat is CRC attachment?
Transport Block CRC Attachment A cyclic redundancy check (CRC) is used for error detection in transport blocks . The entire transport block is used to calculate the CRC parity bits. The transport block is divided by a cyclic generator polynomial, described as g C R C 24 A in section 5.1.
Read moreWhat is MCS and where it is used?
In a nutshell, an MCS table is a lookup that can be used to find which data rate will be negotiated between two stations once all the connection parameters are known . For each possible combination of modulation, coding rate, number of spatial streams, channel width, and guard interval, there is a unique MCS index.16 Eyl 2020
Read moreWhat is CQI and MCS?
CQI (Channel Quality Indication) – Instead of expressing the CQI as a received signal quality, the CQI expressed as a data rate that terminal (UE) can support under the actual radio conditions. SINR is used for calculating CQI. In LTE, CQI has only 15 codes. MCS parameter is assigned based on the CQI value .
Read moreWhat is MCS in 5G NR?
MCS stands for Modulation and Coding Scheme and TBS stands for Transport Block Size. Introduction: 5G NR (New radio) is latest cellular wireless technology which follows 3GPP specifications similar to LTE. The entire protocol stack for UE and gNB (i.e. Base Station) is specified in 38 series of documents.
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