Slot format indication method and related product

Abstract

Embodiments of the present application disclose a slot format indication method and a related product. The method comprises: a network device transmits a slot format indicator (SFI) to a terminal, the SFI being used for indicating a slot format of at least one carrier, the at least one carrier comprising a first carrier, the slot format indicated by the SFI being determined on the basis of a first subcarrier spacing, and a subcarrier spacing of the first carrier being an integer multiple of the first subcarrier spacing. According to the embodiments of the present application, the slot format of one or more carriers can be indicated without relying on the subcarrier spacing of a particular carrier.

What is claimed is: 
     
         1 . A method for indicating a slot format, comprising:
 sending, by a network device, a slot format indicator (SFI) to a terminal, wherein the SFI is used to indicate a slot format of at least one carrier, the at least one carrier comprises a first carrier, and a subcarrier spacing of the first carrier is X multiple of a first subcarrier spacing, X being a positive integer; wherein the first subcarrier spacing is configured by radio resource control (RRC) signaling;   wherein each slot format indicated by the SFI is used to determine slot formats of X slots of the first carrier.   
     
     
         2 . The method according to  claim 1 , wherein the at least one carrier further comprises a second carrier; wherein the subcarrier spacing of the first carrier is a second subcarrier spacing, and wherein when the second subcarrier spacing is N times a subcarrier spacing of the second carrier, a number of slots indicated by the SFI on the first carrier is N times a number of slots indicated by the SFI on the second carrier, wherein N is a positive integer. 
     
     
         3 . The method according to  claim 1 , wherein the first subcarrier spacing is 15 KHz, a value of X is 4, and the subcarrier spacing of the first carrier is 60 KHz. 
     
     
         4 . The method according to  claim 1 , wherein a value of X is 2, 4, 8, or 16. 
     
     
         5 . The method according to  claim 1 , wherein the SFI comprises a slot format index, and a number of the slot format index is the same as a number of the carriers in the at least one carrier. 
     
     
         6 . The method according to  claim 1 , wherein the at least one carrier further comprises a second carrier, wherein a subcarrier spacing of the second carrier is the first subcarrier spacing, and each slot format indicated by the SFI is used to determine a format of one slot of the second carrier. 
     
     
         7 . The method according to  claim 6 , wherein:
 a start time of the i th  slot indicated by the SFI on the second carrier is the same as a start time of the [(i−1)*X+1] th  slot indicated by the SFI on the first carrier, an end time of the i th  slot indicated by the SFI on the second carrier is the same as an end time of the (i*X) th  slot indicated by the SFI on the first carrier, and the slot formats of the [(i−1)*X+1] th  slot to the (i*X) th  slot indicated by the SFI on the first carrier are the same, i being a positive integer.   
     
     
         8 . A network device, comprising: a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the processor, and the program comprises instructions for performing:
 sending a slot format indicator (SFI) to a terminal, wherein the SFI is used to indicate a slot format of at least one carrier, the at least one carrier comprises a first carrier, and a subcarrier spacing of the first carrier is X multiple of a first subcarrier spacing, X being a positive integer; wherein the first subcarrier spacing is configured by radio resource control (RRC) signaling;   wherein each slot format indicated by the SFI is used to determine slot formats of X slots of the first carrier.   
     
     
         9 . The network device according to  claim 8 , wherein the at least one carrier further comprises a second carrier; wherein the subcarrier spacing of the first carrier is a second subcarrier spacing, and wherein when the second subcarrier spacing is N times a subcarrier spacing of the second carrier, a number of slots indicated by the SFI on the first carrier is N times a number of slots indicated by the SFI on the second carrier, wherein N is a positive integer. 
     
     
         10 . The network device according to  claim 8 , wherein the first subcarrier spacing is 15 KHz, a value of X is 4, and the subcarrier spacing of the first carrier is 60 KHz. 
     
     
         11 . The network device according to  claim 8 , wherein a value of X is 2, 4, 8, or 16. 
     
     
         12 . The network device according to  claim 8 , wherein the SFI comprises a slot format index, and a number of the slot format index is the same as a number of the carriers in the at least one carrier. 
     
     
         13 . The network device according to  claim 8 , wherein the at least one carrier further comprises a second carrier, wherein a subcarrier spacing of the second carrier is the first subcarrier spacing, and each slot format indicated by the SFI is used to determine a format of one slot of the second carrier. 
     
     
         14 . The network device according to  claim 13 , wherein:
 a start time of the i th  slot indicated by the SFI on the second carrier is the same as a start time of the [(i−1)*X+1] th  slot indicated by the SFI on the first carrier, an end time of the i th  slot indicated by the SFI on the second carrier is the same as an end time of the (i*X) th  slot indicated by the SFI on the first carrier, and the slot formats of the [(i−1)*X+1] th  slot to the (i*X) th  slot indicated by the SFI on the first carrier are the same, i being a positive integer.   
     
     
         15 . A terminal, comprising: a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program comprises instructions for performing:
 receiving a slot format indicator (SFI) sent by a network device, wherein the SFI is used to indicate a slot format of at least one carrier, the at least one carrier comprises a first carrier, and a subcarrier spacing of the first carrier is X multiple of a first subcarrier spacing, X being a positive integer; wherein the first subcarrier spacing is configured by radio resource control (RRC) signaling; and   determining slot formats of X slots of the first carrier according to each slot format indicated by the SFI.   
     
     
         16 . The terminal according to  claim 15 , wherein the at least one carrier further comprises a second carrier; wherein the subcarrier spacing of the first carrier is a second subcarrier spacing, and wherein when the second subcarrier spacing is N times a subcarrier spacing of the second carrier, a number of slots indicated by the SFI on the first carrier is N times a number of slots indicated by the SFI on the second carrier, wherein N is a positive integer. 
     
     
         17 . The terminal according to  claim 15 , wherein the first subcarrier spacing is 15 KHz, a value of X is 4, and the subcarrier spacing of the first carrier is 60 KHz. 
     
     
         18 . The terminal according to  claim 15 , wherein a value of X is 2, 4, 8, or 16. 
     
     
         19 . The terminal according to  claim 15 , wherein the SFI comprises a slot format index, and a number of the slot format index is the same as a number of the carriers in the at least one carrier. 
     
     
         20 . The terminal according to  claim 15 , wherein the at least one carrier further comprises a second carrier, wherein a subcarrier spacing of the second carrier is the first subcarrier spacing, and each slot format indicated by the SFI is used to determine a format of one slot of the second carrier.