Information transmission method, terminal device, and network device

Abstract

Provided are an information transmission method, a terminal device, and a network device. The network device is capable of flexibly using different types of downlink control information according to different situations, and is also capable of effectively controlling the total indication overheads. The method includes that a terminal device receiving downlink control information of a scheduling paging message. The downlink control information comprises first indication information, and the first indication information is used for indicating the type of control information carried in the downlink control information. The method also includes that the terminal device determining, according to the first indication information, the type of the control information carried in the downlink control information.

What is claimed is: 
     
         1 . A method for information transmission, comprising:
 receiving, by a terminal device, downlink control information for scheduling a paging message, wherein the downlink control information comprises first indication information, the first indication information being used for indicating a type of control information carried in the downlink control information; and   determining, by the terminal device, the type of the control information carried in the downlink control information according to the first indication information,   wherein the type of the control information carried in the downlink control information is one of the following types:   scheduling information for Physical Downlink Shared Channel (PDSCH) carrying the paging message,   a short message, or   the scheduling information for the PDSCH carrying the paging message and the short message,   wherein the short message comprises at least one of a system information update indication, a commercial alerting indication, or an earthquake and tsunami warning indication.   
     
     
         2 . The method according to  claim 1 , wherein the first indication information comprises first indication bits and a length of the first indication bits is two bits, wherein:
 when the first indication bits are first combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message;   when the first indication bits are second combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the short message; or   when the first indication bits are third combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message and the short message.   
     
     
         3 . The method according to  claim 2 , wherein when the first indication bits are fourth combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the downlink control information for an enhanced paging mechanism in a Rel 16 version or higher. 
     
     
         4 . The method according to  claim 3 , wherein when the first indication bits are the fourth combination of two bits, the type of the control information carried in the downlink control information further comprise:
 scheduling information for PDSCH carrying a paging message in the Rel 16 version or higher, a short message in the Rel 16 version or higher, or the scheduling information for the PDSCH carrying the paging message and the short message in the Rel 16 version or higher.   
     
     
         5 . The method according to  claim 1 , wherein the terminal device is a Rel-15 version terminal device, the first indication information comprises first indication bits, a length of the first indication bits is two bits, and a part of combinations of indication bits in the first indication bits is not used for indicating the type of the control information. 
     
     
         6 . A method for information transmission, comprising:
 sending, by a network device, downlink control information for scheduling a paging message to a terminal device, wherein the downlink control information comprises first indication information, the first indication information being used for indicating a type of control information carried in the downlink control information to the terminal device,   wherein the type of the control information carried in the downlink control information is one of the following types:   scheduling information for Physical Downlink Shared Channel (PDSCH) carrying the paging message,   a short message, or   the scheduling information for the PDSCH carrying the paging message and the short message,   wherein the short message comprises at least one of a system information update indication, a commercial alerting indication, or an earthquake and tsunami warning indication.   
     
     
         7 . The method according to  claim 6 , wherein the first indication information comprises first indication bits and a length of the first indication bits is two bits, wherein:
 when the first indication bits are first combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message;   when the first indication bits are second combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the short message; or   when the first indication bits are third combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message and the short message.   
     
     
         8 . The method according to  claim 7 , wherein when the first indication bits are fourth combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the downlink control information for an enhanced paging mechanism in a Rel 16 version or higher. 
     
     
         9 . The method according to  claim 8 , wherein when the first indication bits are the fourth combination of two bits, the type of the control information carried in the downlink control information further comprise:
 scheduling information for PDSCH carrying a paging message in the Rel 16 version or higher, a short message in the Rel 16 version or higher, or the scheduling information for the PDSCH carrying the paging message and the short message in the Rel 16 version or higher.   
     
     
         10 . The method according to  claim 6 , wherein the terminal device is a Rel-15 version terminal device, the first indication information comprises first indication bits, a length of the first indication bits is two bits, and a part of combinations of indication bits in the first indication bits is not used for indicating the type of the control information. 
     
     
         11 . A terminal device, comprising:
 a processor;   a memory; and   a plurality of instructions stored in the memory that, when executed by the processor, cause the terminal device to:
 receive downlink control information for scheduling a paging message, wherein the downlink control information comprises first indication information, the first indication information being used for indicating a type of control information carried in the downlink control information; and 
 determine the type of the control information carried in the downlink control information according to the first indication information, 
   wherein the type of the control information carried in the downlink control information is one of the following types:   scheduling information for Physical Downlink Shared Channel (PDSCH) carrying the paging message,   a short message, or   the scheduling information for the PDSCH carrying the paging message and the short message,   wherein the short message comprises at least one of a system information update indication, a commercial alerting indication, or an earthquake and tsunami warning indication.   
     
     
         12 . The terminal device according to  claim 11 , wherein the first indication information comprises first indication bits and a length of the first indication bits is two bits, wherein:
 when the first indication bits are first combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message;   when the first indication bits are second combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the short message; or   when the first indication bits are third combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message and the short message.   
     
     
         13 . The terminal device according to  claim 12 , wherein when the first indication bits are fourth combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the downlink control information for an enhanced paging mechanism in a Rel 16 version or higher. 
     
     
         14 . The terminal device according to  claim 13 , wherein when the first indication bits are the fourth combination of two bits, the type of the control information carried in the downlink control information further comprise:
 scheduling information for PDSCH carrying a paging message in the Rel 16 version or higher, a short message in the Rel 16 version or higher, or the scheduling information for the PDSCH carrying the paging message and the short message in the Rel 16 version or higher.   
     
     
         15 . The terminal device according to  claim 11 , wherein the terminal device is a Rel-15 version terminal device, the first indication information comprises first indication bits, a length of the first indication bits is two bits, and a part of combinations of indication bits in the first indication bits is not used for indicating the type of the control information. 
     
     
         16 . A network device, comprising:
 a processor;   a memory; and   a plurality of instructions stored in the memory that, when executed by the processor, cause the network device to:
 send downlink control information for scheduling a paging message to a terminal device, wherein the downlink control information comprises first indication information, the first indication information being used for indicating a type of control information carried in the downlink control information to the terminal device, 
   wherein the type of the control information carried in the downlink control information is one of the following types:   scheduling information for Physical Downlink Shared Channel (PDSCH) carrying the paging message,   a short message, or   the scheduling information for the PDSCH carrying the paging message and the short message,   wherein the short message comprises at least one of a system information update indication, a commercial alerting indication, or an earthquake and tsunami warning indication.   
     
     
         17 . The network device according to  claim 16 , wherein the first indication information comprises first indication bits and a length of the first indication bits is two bits, wherein:
 when the first indication bits are first combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message;   when the first indication bits are second combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the short message; or   when the first indication bits are third combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the scheduling information for the PDSCH carrying the paging message and the short message.   
     
     
         18 . The network device according to  claim 17 , wherein when the first indication bits are fourth combination of two bits, the first indication information indicates that the type of the control information carried in the downlink control information is the downlink control information for an enhanced paging mechanism in a Rel 16 version or higher. 
     
     
         19 . The network device according to  claim 18 , wherein when the first indication bits are the fourth combination of two bits, the type of the control information carried in the downlink control information further comprise:
 scheduling information for PDSCH carrying a paging message in the Rel 16 version or higher, a short message in the Rel 16 version or higher, or the scheduling information for the PDSCH carrying the paging message and the short message in the Rel 16 version or higher.   
     
     
         20 . The network device according to  claim 16 , wherein the terminal device is a Rel-15 version terminal device, the first indication information comprises first indication bits, a length of the first indication bits is two bits, and a part of combinations of indication bits in the first indication bits is not used for indicating the type of the control information.