Invention Grant
- Patent Title: Communication apparatus and retransmission control method
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Application No.: US16656223Application Date: 2019-10-17
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Publication No.: US10892869B2Publication Date: 2021-01-12
- Inventor: Ayako Horiuchi , Akihiko Nishio
- Applicant: Panasonic Intellectual Property Corporation of America
- Applicant Address: US CA Torrance
- Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee: Panasonic Intellectual Property Corporation of America
- Current Assignee Address: US CA Torrance
- Agency: Seed IP Law Group LLP
- Priority: JP2011-176864 20110812
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L1/18 ; H04W72/04 ; H04W72/14 ; H04L1/12

Abstract:
Provided is a wireless communication device. A PHICH reception unit determines whether a received signal in a PHICH region is an ACK signal or a NACK signal. When doing so, the PHICH reception unit does not receive a PHICH in a subframe in which a terminal monitors an E-PDCCH. A control signal reception unit outputs a retransmission prompting signal to a signal allocation unit when the signal outputted from the PHICH reception unit is a NACK signal and when a UL grant was not detected. Meanwhile, when a UL grant was detected, the control signal reception unit outputs the detected UL grant to the signal allocation unit. The signal allocation unit maps the transmission signal in accordance with the retransmission prompting signal and the UL grant and transmits the transmission signal from a wireless transmission unit.
Public/Granted literature
- US20200052849A1 COMMUNICATION APPARATUS AND RETRANSMISSION CONTROL METHOD Public/Granted day:2020-02-13
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