Invention Application
- Patent Title: MULTEFIRE DESIGN OF RANDOM ACCESS CHANNEL AND RANDOM ACCESS CHANNEL PROCEDURE FOR INTERNET OF THINGS DEVICE OPERATION IN UNLICENSED SPECTRUM
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Application No.: US16604047Application Date: 2018-05-03
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Publication No.: US20210105821A1Publication Date: 2021-04-08
- Inventor: Huaning Niu , Wenting Chang , Qiaoyang Ye , Salvatore Talarico , Jinnian Zhang
- Applicant: Intel IP Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel IP Corporation
- Current Assignee: Intel IP Corporation
- Current Assignee Address: US CA Santa Clara
- International Application: PCT/US2018/030872 WO 20180503
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04W4/70 ; H04W72/04 ; G16Y10/75

Abstract:
Systems and methods of performing a RACH procedure in a MulteFire scenario are described. An eMTC UE communicates with an eNB on an anchor channel at a predetermined frequency of an unlicensed band and data channels on other frequency hopping channels of the unlicensed band. The UE receives a PBCH signal with System Information Broadcast Anchor (SIB-A-MF) scheduling information, and a SIB-A-MF after the PBCH. The SIB-A-MF indicates a RAC) resource configuration for a RACH procedure and dwell time of the data channels. The dwell time of the anchor channel is smaller than that of the data channels. The anchor channel includes a UL RACH resource for transmission of a RACH Request. The UE transmits UL RACH messages on UL resources indicated by the SIB-A-MF and receives DL RACH messages on different data channels.
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