Invention Grant
- Patent Title: Coverage enhancement for initial access with feedback via PRACH sequence
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Application No.: US17446090Application Date: 2021-08-26
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Publication No.: US11778545B2Publication Date: 2023-10-03
- Inventor: Mahmoud Taherzadeh Boroujeni , Tao Luo , Peter Gaal , Xiaoxia Zhang , Jing Sun , Wooseok Nam , Iyab Issam Sakhnini , Jelena Damnjanovic , Junyi Li
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: The Marbury Law Group
- Main IPC: H04W48/16
- IPC: H04W48/16 ; H04W72/044 ; H04W72/02

Abstract:
In embodiments of systems and methods for managing communication between a wireless device and a base station, a base station may transmit Remaining Minimum System Information (RMSI) Downlink Control Information (DCI) indicating time and frequency resources for RMSI. A wireless device may receive a Channel State Indicator-Reference Signal (CSI-RS) based on the time and frequency resources for RMSI and may select a sub-beam of a beam associated with a synchronization signal block (SSB). The wireless device may send to the base station an indication of the selected sub-beam associated with the SSB in a Physical Random Access Channel (PRACH) message. The base station and the wireless device each may then perform an initial access procedure using the selected sub-beam to enable the wireless device to establish a communication link with the base station.
Public/Granted literature
- US20220070764A1 COVERAGE ENHANCEMENT FOR INITIAL ACCESS WITH FEEDBACK VIA PRACH SEQUENCE Public/Granted day:2022-03-03
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