Method for determining slot format, and terminal device

Abstract

A method for determining a slot-format includes that: a terminal device receives an indication signal from a network device, the indication signal having a first association with a downlink transmission opportunity obtained by the network device; and the terminal device determines a slot format according to the indication signal. Another method for determining a slot format includes that: a network device sends an indication signal after obtaining a downlink transmission opportunity, the indication signal having a first association with the downlink transmission opportunity and the indication signal being used for a terminal device to determine a slot format. A terminal device and a network device are also provided.

1 . A method for determining a slot format, comprising:
 receiving, by a terminal device, an indication signal from a network device, wherein the indication signal has a first association with a downlink transmission opportunity obtained by the network device through listen-before-talk (LBT), and the indication signal is not a group common physical downlink control channel (PDCCH); and   determining, by the terminal device, a slot format according to the indication signal.   
     
     
         2 . The method of  claim 1 , wherein the first association comprises:
 information carried in the indication signal is suitable for transmission of the network device in a time unit corresponding to the downlink transmission opportunity.   
     
     
         3 . The method of  claim 1 , wherein the indication signal is used for notifying the slot format. 
     
     
         4 . The method of  claim 1 , wherein the indication signal carries an identification code corresponding to the slot format. 
     
     
         5 . The method of  claim 1 , wherein the indication signal indicates at least one of the following:
 a time when the terminal device starts to detect a downlink channel;   a time when the terminal device starts to receive the downlink channel;   a duration of the downlink transmission opportunity; or   a starting time of downlink transmission.   
     
     
         6 . The method of  claim 1 , wherein the indication signal comprises downlink control information (DCI). 
     
     
         7 . The method of  claim 1 , further comprising:
 receiving, by the terminal device according to the slot format, downlink transmission of the network device in a time unit corresponding to the downlink transmission opportunity.   
     
     
         8 . The method of  claim 1 , wherein the slot format is a slot format in a time unit corresponding to the downlink transmission opportunity. 
     
     
         9 . A method for determining a slot format, comprising:
 sending, by a network device, an indication signal to a terminal device after obtaining a downlink transmission opportunity through listen-before-talk (LBT), wherein the indication signal has a first association with the downlink transmission opportunity, and the indication signal is not a group common physical downlink control channel (PDCCH) and is used for the terminal device to determine the slot format.   
     
     
         10 . The method of  claim 9 , wherein the first association comprises:
 information carried in the indication signal is suitable for transmission of the network device in a time unit corresponding to the downlink transmission opportunity.   
     
     
         11 . The method of  claim 9 , wherein the indication signal is used for notifying the slot format. 
     
     
         12 . The method of  claim 9 , wherein the indication signal carries an identification code corresponding to the slot format. 
     
     
         13 . A terminal device, comprising:
 a network interface, configured to receive an indication signal from a network device, wherein the indication signal has a first association with a downlink transmission opportunity obtained by the network device through listen-before-talk (LBT) and the indication signal is not a group common physical downlink control channel (PDCCH); and   a processor, configured to determine a slot format according to the indication signal.   
     
     
         14 . The terminal device of  claim 13 , wherein the first association comprises:
 information carried in the indication signal is suitable for transmission of the network device in a time unit corresponding to the downlink transmission opportunity.   
     
     
         15 . The terminal device of  claim 13 , wherein the indication signal is used for notifying the slot format. 
     
     
         16 . The terminal device of  claim 13 , wherein the indication signal carries an identification code corresponding to the slot format. 
     
     
         17 . The terminal device of  claim 13 , wherein the indication signal indicates at least one of the following:
 a time when the terminal device starts to detect a downlink channel;   a time when the terminal device starts to receive the downlink channel;   a duration of the downlink transmission opportunity; or   a starting time of downlink transmission.   
     
     
         18 . The terminal device of  claim 13 , wherein the indication signal comprises downlink control information (DCI). 
     
     
         19 . The terminal device of  claim 13 , wherein the network interface is further configured to receive, according to the slot format, downlink transmission of the network device in a time unit corresponding to the downlink transmission opportunity. 
     
     
         20 . The terminal device of  claim 13 , wherein the slot format is a slot format in a time unit corresponding to the downlink transmission opportunity.