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Patent Searching and Data


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:
H04W72/00; H04L1/00
Domestic Patent References:
WO2015194014A12015-12-23
Foreign References:
EP2955891A12015-12-16
CN101795172A2010-08-04
Other References:
See also references of EP 3560253A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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