US Patent No. 10,397,939

SYSTEMS AND METHODS FOR PHYSICAL UPLINK SHARED CHANNEL (PUSCH) FORMAT SIGNALING AND CONTENTION ACCESS


Patent No. 10,397,939
Issue Date August 27, 2019
Title Systems And Methods For Physical Uplink Shared Channel (pusch) Format Signaling And Contention Access
Inventorship Zhanping Yin, Vancouver, WA (US)
Toshizo Nogami, Chiba (JP)
Assignee Sharp Kabushiki Kaisha, Osaka (JP) FG Innovation Company Limited, Hong Ko...

Claim of US Patent No. 10,397,939

2. A method of a user equipment (UE) comprising:receiving a physical downlink control channel (PDCCH) with a downlink control information (DCI) format, the PDCCH scheduling a single physical uplink shared channel (PUSCH), the single PUSCH being a first PUSCH in subframe n, the DCI indicating a starting position and an ending position of the PUSCH;
performing a channel access procedure; and
transmitting the first PUSCH; wherein
when any PUSCH is not transmitted in subframe n?1, the channel access procedure is performed immediately before a transmission of the first PUSCH, and
when a second PUSCH is transmitted in subframe n?1:
if the starting position of the first PUSCH is later than an initial subframe boundary of the subframe n or if the ending position of the second PUSCH is earlier than a final subframe boundary of the subframe n?1, the channel access procedure is performed immediately before the transmission of the first PUSCH; and
if there is no gap between the first PUSCH and the second PUSCH, the transmission of the first PUSCH is performed without performing the channel access procedure immediately before the transmission of the first PUSCH.