PHYSICAL DOWNLINK CONTROL CHANNEL DESIGN FOR 5G NEW RADIO

Title:

PHYSICAL DOWNLINK CONTROL CHANNEL DESIGN FOR 5G NEW RADIO

Document Type and Number:

WIPO Patent Application WO/2018/130151

Kind Code:

A1

Abstract:

A method to improve the design of new radio physical downlink control channel (NR-PDCCH) transmission and to reduce the false alarm rate of NR-PDCCH blind decoding is proposed. The downlink control information (DCI) bits are carried by NR-PDCCH to be transmitted to UEs after CRC attachment, channel encoding, interleaving, and modulation. The proposed NR-PDCCH design is separated into two parts. In a first part, a UE-ID or RNTI is used to derive a CRC mask or a scrambling sequence for CRC attachment of the DCI bits. In a second part, a UE-specific ID is used to derive an interleaver before or after channel encoding of the DCI bits. If the interleaver is placed before channel encoding, it takes the form of a bit interleaver. If the interleaver is placed after channel encoding, it takes the form of a bit interleaver or a channel interleaver.

Inventors:

HWANG CHIEN-HWA (CN)
YANG WEIDONG (US)
LIAO PEI-KAI (CN)
WU WEI-DE (CN)

Application Number:

PCT/CN2018/072038

Publication Date:

July 19, 2018

Filing Date:

January 10, 2018

Export Citation:

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Assignee:

MEDIATEK INC (CN)

International Classes:

H04L1/00; H04W72/00

Domestic Patent References:

WO2015194014A1

2015-12-23

Foreign References:

EP2955891A1	2015-12-16
CN101795172A	2010-08-04

Other References: