Method and terminal for data transmission using unlicensed carrier

Abstract

Disclosed in the present invention are data transmitting method, a terminal and a base station. Provided is as feasible method for transmitting feedback information under the scenario in which a unlicensed carrier works independently, and in which the feedback information corresponding to a plurality of time limits for downlink transmission are transmitted within a time unit for uplink transmission, thereby improving the efficiency of feedback.

1 . A data transmission method, applied to a terminal, comprising:
 receiving, by the terminal, downlink data over N successive time units, wherein N is a positive integer greater than 1; and   transmitting, by the terminal, feedback information of the downlink data received over the N successive time units within a first time unit, wherein the first time unit is a time unit determined based on a feedback processing latency, with a last time unit in the N successive time units as a reference.   
     
     
         2 . The method according to  claim 1 , wherein the first time unit is a first one of time units after the feedback processing latency, with the last time unit in the N successive time units as a reference. 
     
     
         3 . The method according to  claim 1 , wherein the downlink data comprises downlink service data. 
     
     
         4 . The method of  claim 2 , wherein the first time unit is a timeslot. 
     
     
         5 . A data transmission method, applied to a base station, comprising:
 sending, by the base station, downlink data over N successive time units, wherein N is a positive integer greater than 1; and   receiving, by the base station, feedback information of the downlink data received over the N successive time units within a first time unit, wherein the first time unit is a time unit determined based on a feedback processing latency, with a last time unit in the N successive time units as a reference.   
     
     
         6 . The method according to  claim 5 , wherein the first time unit is a first one of time units after the feedback processing latency, with the last time unit in the N successive time units as a reference. 
     
     
         7 . The method according to  claim 5 , wherein the downlink data comprises downlink service data. 
     
     
         8 . The method of  claim 6 , wherein the first time unit is a timeslot. 
     
     
         9 . A base station, comprising:
 a sender, configured to send downlink data over N successive time units, wherein N is a positive integer greater than 1; and   a receiver, configured to receive feedback information of the downlink data received over the N successive time units within a first time unit, wherein the first time unit is a time unit determined based on a feedback processing latency, with a last time unit in the N successive time units as a reference.   
     
     
         10 . The base station according to  claim 9 , wherein the first time unit is a first one of time units after the feedback processing latency, with the last time unit in the N successive time units as a reference. 
     
     
         11 . The base station according to  claim 9 , wherein the downlink data comprises downlink service data. 
     
     
         12 . The base station according to  claim 9 , wherein the first time unit is a timeslot.