Wireless communication method, terminal device and network device

Abstract

Provided are a wireless communication method, a terminal device and a network device. The wireless communication method includes: receiving, by a terminal device, first indication information that is sent by a network device, wherein the first indication information is used to indicate the terminal device to stop duplication transmission of data of one or more radio bearers; and mapping, by the terminal device, a first logical channel to all carriers of a plurality of carriers according to the first indication information, wherein the plurality of carriers are all carriers in carriers configured by the network device for the terminal device.

What is claimed is: 
     
         1 . A method for wireless communication, comprising:
 configuring data duplication for a first logical channel and a second logical channel;   configuring, by a terminal device, a mapping relationship between the first logical channel and a first carrier for transmitting data of the first logical channel;   configuring, by the terminal device, a mapping relationship between the second logical channel and a second carrier for transmitting data of the second logical channel; wherein the first carrier and the second carrier are different;   performing, by the terminal device, duplication transmission of data of one or more radio bearers, wherein a Packet Data Convergence Protocol (PDCP) packet data unit (PDU) is duplicated, and the PDCP PDU is transmitted in the first logical channel, and the duplication of the PDCP PDU is transmitted in the second logical channel;   receiving, by the terminal device, first indication information that is sent by a network device, wherein the first indication information is used to indicate to the terminal device to stop duplication transmission of data of one or more radio bearers; and   transmitting first data through the first logical channel, and stopping transmitting data through the second logical channel, by the terminal device, according to the first indication information.   
     
     
         2 . The method according to  claim 1 , wherein the second logical channel has a mapping relationship with any one of carriers according to the first indication information. 
     
     
         3 . The method according to  claim 1 , wherein the first logical channel has a mapping relationship with any one of carriers according to the first indication information. 
     
     
         4 . The method according to  claim 3 , wherein the method further comprises:
 releasing, by the terminal device, the mapping relationship between the first logical channel and any one of carriers according to the first indication information.   
     
     
         5 . The method according to  claim 2 , wherein the method further comprises:
 releasing, by the terminal device, the mapping relationship between the second logical channel and any one of carriers according to the first indication information.   
     
     
         6 . The method according to  claim 1 , further comprising:
 sending, by the terminal device, second indication information to the network device, wherein the second indication information is used to indicate that the terminal device has released the first logical channel to any one of carriers and/or the terminal device has released the second logical channel to any one of carriers.   
     
     
         7 . The method according to  claim 1 , wherein the first indication information is carried in a Media Access Control Control Element (MAC CE). 
     
     
         8 . A method for wireless communication, comprising:
 sending, by a network device, first indication information to a terminal device, wherein the first indication information is used to indicate to the terminal device to stop duplication transmission of data of one or more radio bearers, and indicate the terminal device to transmit first data through a first logical channel and stop transmitting data through a second logical channel.   
     
     
         9 . The method according to  claim 8 , wherein the first indication information is further used to indicate the terminal device to map the second logical channel to any one of carriers, and map the first logical channel to any one of carriers. 
     
     
         10 . The method according to  claim 8 , further comprising:
 receiving, by the network device, second indication information that is sent by the terminal device, wherein the second indication information is used to indicate that the terminal device has released the first logical channel to any one of carriers and/or the terminal device has released the second logical channel to any one of carriers.   
     
     
         11 . The method according to  claim 8 , wherein the first indication information is carried in a Media Access Control Control Element (MAC CE). 
     
     
         12 . A terminal device, comprising:
 a non-transitory memory; and   a processor;   wherein the non-transitory memory stores program code, which when executed by the processor, causes the processor to:   configure data duplication for a first logical channel and a second logical channel;   configure a mapping relationship between the first logical channel and a first carrier for transmitting data of the first logical channel;   configure a mapping relationship between the second logical channel and a second carrier for transmitting data of the second logical channel; wherein the first carrier and the second carrier are different;   perform duplication transmission of data of one or more radio bearers, wherein a Packet Data Convergence Protocol (PDCP) packet data unit (PDU) is duplicated, and the PDCP PDU is transmitted in the first logical channel, and the duplication of the PDCP PDU is transmitted in the second logical channel;   receive first indication information that is sent by a network device, wherein the first indication information is used to indicate to the terminal device to stop duplication transmission of data of one or more radio bearers; and   transmit first data through the first logical channel, and stop transmitting data through the second logical channel, according to the first indication information.   
     
     
         13 . The terminal device according to  claim 12 , wherein the second logical channel has a mapping relationship with any one of carriers according to the first indication information. 
     
     
         14 . The terminal device according to  claim 12 , wherein the first logical channel has a mapping relationship with any one of carriers according to the first indication information. 
     
     
         15 . The terminal device according to  claim 14 , wherein the non-transitory memory stores program code, which when executed by the processor, causes the processor to release the mapping relationship between the first logical channel and any one of carriers according to the first indication information. 
     
     
         16 . The terminal device according to  claim 13 , wherein the non-transitory memory stores program code, which when executed by the processor, causes the processor to release the mapping relationship between the second logical channel and any one of carriers according to the first indication information. 
     
     
         17 . A network device, comprising:
 a non-transitory memory; and   a processor;   wherein the non-transitory memory stores program code, which when executed by the processor, causes the processor to:   send first indication information to a terminal device, wherein the first indication information is used to indicate to the terminal device to stop duplication transmission of data of one or more radio bearers, and indicate the terminal device to transmit first data through a first logical channel and stop transmitting data through a second logical channel.   
     
     
         18 . The network device according to  claim 17 , wherein the first indication information is further used to indicate the terminal device to map the second logical channel to any one of carriers, and map the first logical channel to any one of carriers. 
     
     
         19 . The network device according to  claim 17 , wherein the non-transitory memory stores program code, which when executed by the processor, causes the processor to:
 receive second indication information that is sent by the terminal device, wherein the second indication information is used to indicate that the terminal device has released the first logical channel to any one of carriers and/or the terminal device has released the second logical channel to any one of carriers.