Invention Grant
- Patent Title: Apparatuses and methods for a physical random access channel (PRACH) retransmission
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Application No.: US16991200Application Date: 2020-08-12
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Publication No.: US11438034B2Publication Date: 2022-09-06
- Inventor: Chiou-Wei Tsai
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsinchu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsinchu
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: H04B7/0408
- IPC: H04B7/0408 ; H04W74/08 ; H04W24/02 ; H04B7/06

Abstract:
A method for a Physical Random Access Channel (PRACH) retransmission, executed by a UE wirelessly transmitting and receiving to and from a cellular station, operates by performing a first PRACH transmission or retransmission using a first spatial domain transmission filter on first PRACH resources which are associated with a first downlink reference signal. After the first PRACH transmission or retransmission, the method performs a second PRACH retransmission using a second spatial domain transmission filter on second PRACH resources which are associated with a second downlink reference signal. Finally, method operates without incrementing a power ramping counter in response to the UE selecting the second spatial domain transmission filter different from the first spatial domain transmission filter, or incrementing the power ramping counter in response to the UE selecting the second downlink reference signal different from the first downlink reference signal.
Public/Granted literature
- US20200373969A1 APPARATUSES AND METHODS FOR A PHYSICAL RANDOM ACCESS CHANNEL (PRACH) RETRANSMISSION Public/Granted day:2020-11-26
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