Radio communication method, terminal device and network device

Abstract

Disclosed are a radio communication method, a terminal device and a network device. The method comprises: a terminal device acquiring a mobility control parameter for executing cell selection and re-selection in an inactive state. The method, the terminal device and the network device of the embodiments of the present application facilitate controlling the mobility of a terminal device in an inactive state.

What is claimed is: 
     
         1 . A method for wireless communication, comprising:
 obtaining, by a terminal device, a mobility control parameter for performing cell reselection in an inactive state; and   receiving, by the terminal device, indication information sent by a network device when the terminal device returns from the inactive state to an idle state, wherein the indication information is used to indicate the mobility control parameter used when the terminal device is in the idle state, and the mobility control parameter used when the terminal device is in the idle state is the mobility control parameter configured for the inactive state; and   wherein the indication information is carried in a system broadcast message.   
     
     
         2 . The method according to  claim 1 , wherein the obtaining, by the terminal device, the mobility control parameter for performing cell reselection in the inactive state comprises:
 obtaining, by the terminal device, a mobility control parameter configured for the inactive state from RRC dedicated signaling sent by the network device.   
     
     
         3 . The method according to  claim 2 , wherein the obtaining, by the terminal device, the mobility control parameter for performing cell reselection in the inactive state comprises:
 receiving, by the terminal device, a radio resource control (RRC) connection release message sent by the network device, wherein the RRC connection release message is used to instruct the terminal device to enter the inactive state, and the RRC connection release message carries the mobility control parameter; and   obtaining, by the terminal device, the mobility control parameter configured for the inactive state from the RRC connection release message.   
     
     
         4 . The method according to  claim 1 , wherein the mobility control parameter comprises at least one of following parameters: a decision parameter of a mobile state of the terminal device, a scaling parameter of each parameter of the mobile state of the terminal device, and a frequency-based cell reselection priority parameter. 
     
     
         5 . The method according to  claim 3 , the RRC connection release message comprises an indication or a release cause value for instructing the terminal device to enter the inactive state. 
     
     
         6 . A method for wireless communication, comprising:
 configuring for a terminal device, by a network device, a mobility control parameter for an inactive state; and   sending, by the network device, indication information to the terminal device, wherein the indication information is used to indicate the mobility control parameter used when the terminal device returns from the inactive state to an idle state, and the mobility control parameter used when the terminal device returns from the inactive state to the idle state is the mobility control parameter configured for the inactive state; and   wherein the indication information is carried in a system broadcast message.   
     
     
         7 . The method according to  claim 6 , wherein the configuring for the terminal device, by the network device, the mobility control parameter for the inactive state comprises:
 sending, by the network device, the mobility control parameter for the inactive state to the terminal device through radio resource control (RRC) dedicated signaling or a system broadcast message.   
     
     
         8 . The method according to  claim 7 , wherein the RRC dedicated signaling is an RRC connection release message, and the RRC connection release message is used to instruct the terminal device to enter the inactive state. 
     
     
         9 . The method according to  claim 6 , wherein the mobility control parameter comprises at least one of following parameters: a decision parameter of a mobile state of the terminal device, a scaling parameter of each parameter of a mobile state of the terminal device, and a frequency-based cell reselection priority parameter. 
     
     
         10 . The method according to  claim 8 , wherein the RRC connection release message comprises an indication or a release cause value for instructing the terminal device to enter the inactive state. 
     
     
         11 . A terminal device, comprising:
 a memory;   a processor;   an input interface; and   an output interface;   wherein the memory, the processor, the input interface, and the output interface are connected by a bus system, the memory is for storing instructions, and the processor is for executing the instructions stored in the memory to:   obtain a mobility control parameter for performing cell reselection in an inactive state; and   receive indication information sent by a network device when the terminal device returns from the inactive state to an idle state, wherein the indication information is used to indicate the mobility control parameter used when the terminal device is in the idle state, and the mobility control parameter used when the terminal device is in the idle state is the mobility control parameter configured for the inactive state; and   wherein the indication information is carried in a system broadcast message.   
     
     
         12 . The terminal device according to  claim 11 , wherein the processor is further configured to:
 obtain a mobility control parameter configured for the inactive state from RRC dedicated signaling sent by the network device.   
     
     
         13 . The terminal device according to  claim 12 , wherein the processor is further configured to:
 receive a radio resource control (RRC) connection release message sent by the network device, wherein the RRC connection release message is used to instruct the terminal device to enter the inactive state, and the RRC connection release message carries the mobility control parameter; and   obtain the mobility control parameter configured for the inactive state from the RRC connection release message.   
     
     
         14 . The terminal device according to  claim 11 , wherein the mobility control parameter comprises at least one of following parameters: a decision parameter of a mobile state of the terminal device, a scaling parameter of each parameter of a mobile state of the terminal device, and a frequency-based cell reselection priority parameter. 
     
     
         15 . The terminal device according to  claim 13 , wherein the RRC connection release message comprises an indication or a release cause value for instructing the terminal device to enter the inactive state. 
     
     
         16 . A network device, comprising:
 a memory;   a processor;   an input interface; and   an output interface;   wherein the memory, the processor, the input interface, and the output interface are connected by a bus system, the memory is for storing instructions, and the processor is for executing the instructions stored in the memory to:   configure for a terminal device a mobility control parameter for an inactive state; and   send indication information to the terminal device, wherein the indication information is used to indicate the mobility control parameter used when the terminal device returns from the inactive state to an idle state, and the mobility control parameter used when the terminal device returns from the inactive state to the idle state is the mobility control parameter configured for the inactive state; and   wherein the indication information is carried in a system broadcast message.   
     
     
         17 . The network device according to  claim 16 , wherein the processor is further configured to:
 send the mobility control parameter for the inactive state to the terminal device through radio resource control (RRC) dedicated signaling or a system broadcast message.   
     
     
         18 . The network device according to  claim 17 , wherein the RRC dedicated signaling is an RRC connection release message, and the RRC connection release message is used to instruct the terminal device to enter the inactive state. 
     
     
         19 . The network device according to  claim 16 , wherein the mobility control parameter comprises at least one of following parameters: a decision parameter of a mobile state of the terminal device, a scaling parameter of each parameter of a mobile state of the terminal device, and a frequency-based cell reselection priority parameter. 
     
     
         20 . The network device according to  claim 18 , wherein the RRC connection release message comprises an indication or a release cause value for instructing the terminal device to enter the inactive state.