Invention Grant
- Patent Title: Physical downlink control channel design for 5G new radio
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Application No.: US15865229Application Date: 2018-01-08
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Publication No.: US10440703B2Publication Date: 2019-10-08
- Inventor: Chien-Hwa Hwang , Weidong Yang , Pei-Kai Liao , Wei-De Wu
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MediaTek INC.
- Current Assignee: MediaTek INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: Imperium Patent Works
- Agent Zheng Jin
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04L1/00 ; H04L1/18 ; H04W88/02

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.
Public/Granted literature
- US20180199317A1 Physical Downlink Control Channel Design for 5G New Radio Public/Granted day:2018-07-12
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