Invention Grant
- Patent Title: User equipment and base station apparatus
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Application No.: US16982259Application Date: 2018-03-30
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Publication No.: US11575477B2Publication Date: 2023-02-07
- Inventor: Hideyuki Moroga , Satoshi Nagata , Yuichi Kakishima
- Applicant: NTT DOCOMO, INC.
- Applicant Address: JP Tokyo
- Assignee: NTT DOCOMO, INC.
- Current Assignee: NTT DOCOMO, INC.
- Current Assignee Address: JP Tokyo
- Agency: Osha Bergman Watanabe & Burton LLP
- International Application: PCT/JP2018/013988 WO 20180330
- International Announcement: WO2019/187157 WO 20191003
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L27/26 ; H04B1/713

Abstract:
User equipment for communicating with a base station includes a processing unit, wherein when transmitting a physical uplink shared channel (PUSCH) to the base station prior to establishment of a radio resource control (RRC) connection between the base station and the user equipment, the processing unit controls frequency hopping applied to the PUSCH and a demodulation reference signal; a reception unit for receiving from the base station information indicating that frequency hopping is applied to the PUSCH; and a transmission unit for transmitting the PUSCH and the demodulation reference signal to which frequency hopping is applied; wherein the demodulation reference signal for demodulating a single PUSCH is formed of one front-loaded demodulation reference signal and one additional demodulation reference signal, and when the duration in symbols of the PUSCH does not support one additional demodulation reference signal, the demodulation reference signal is formed of a front-loaded demodulation reference signal.
Public/Granted literature
- US20210058203A1 USER EQUIPMENT AND BASE STATION APPARATUS Public/Granted day:2021-02-25
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