Patent ID: 9300424
Filing Date: 2016-03-29
CPC Classification: H04J,H04L,H04W

Claim Text:
1. A method of a terminal transmitting and receiving a signal in a TDD (time division duplex) system, the method comprising: receiving, from a base station, scheduling information in a first subframe for scheduling a second subframe; receiving a TA (timing advanced) command from the base station, wherein the TA command indicates a time period before which the terminal transmits an uplink signal with respect to an uplink subframe boundary; and transmitting or receiving a signal to or from the base station in the second subframe, wherein in a case where the scheduling information is a downlink grant for scheduling a downlink data channel, the second subframe is used as a downlink subframe, and in a case where the scheduling information is an uplink grant for scheduling an uplink data channel, the second subframe is used as an uplink subframe, wherein in a case where the second subframe is used as the uplink subframe, a PUSCH (physical uplink shared channel) transmitted in the second subframe is transmitted prior to the second subframe boundary by the time period indicated by the TA command, and when transmitted, the PUSCH is punctured by a time gap applied to the second subframe or rate matched, and wherein the time gap applied to the second subframe is greater than the time period indicated by the TA command.