Invention Grant
- Patent Title: Multefire design of random access channel and random access channel procedure for Internet of Things device operation in unlicensed spectrum
-
Application No.: US16604047Application Date: 2018-05-03
-
Publication No.: US11071149B2Publication Date: 2021-07-20
- 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
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- International Application: PCT/US2018/030872 WO 20180503
- International Announcement: WO2018/204629 WO 20181108
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W74/08 ; G16Y10/75 ; H04W72/04 ; H04W4/70

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.
Public/Granted literature
Information query