Wireless communications method, apparatus, and system

Abstract

A wireless communications method, apparatus, and system including a terminal is provided. The terminal sets up a connection to a first base station, and stays in always connected mode. When the terminal moves in a dense network, handovers of the first base station can be reduced. Further, when the terminal moves in the dense network, frequent signaling interaction is reduced, paging load in the entire network is reduced, and an end-to-end delay in service setup and transmission is reduced.

What is claimed is: 
     
         1 . A terminal, comprising:
 a processor, configured to set up a connection to a first base station, and stay in an always connected mode, wherein the always connected mode maintains the connection to the first base station;   a receiver, configured to receive first dedicated signaling sent by the first base station, wherein the first dedicated signaling comprises second base station list information, and the second base station list information comprises information about each second base station having context information of the terminal; and   a sender, configured to perform data transmission through at least one of the first base station and the second base station according to the second base station list information.   
     
     
         2 . The terminal according to  claim 1 , wherein the receiver is further configured to:
 receive measurement configuration information sent by the first base station, and complete, according to the measurement configuration information, a measurement configuration of a frequency layer corresponding to each base station of a plurality of base stations, wherein the plurality of base stations comprise the first base station and the second base station, and the second base station comprises a master second base station and a secondary second base station.   
     
     
         3 . The terminal according to  claim 2 , wherein the measurement configuration information comprises at least one of:
 measuring a frequency layer corresponding to the first base station only;   measuring frequency layers corresponding to the first base station and the master second base station only; and   measuring frequency layers corresponding to the first base station, the master second base station, and the secondary second base station.   
     
     
         4 . The terminal according to  claim 3 , wherein the measurement configuration information further comprises at least one of:
 determining a first threshold for measuring the frequency layer corresponding to the first base station only;   determining a second threshold for measuring the frequency layers corresponding to the first base station and the master second base station only; and   determining a third threshold for measuring the frequency layers corresponding to the first base station, the master second base station, and the secondary second base station.   
     
     
         5 . The terminal according to  claim 4 , wherein when QoS of a current service of the terminal is less than the first threshold, the receiver is configured to complete, according to the measurement configuration information, a measurement configuration of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration information, the frequency layer corresponding to the first base station only, and obtain a measurement result;
 when QoS of a current service of the terminal is greater than the first threshold but less than the second threshold, the receiver is configured to complete, according to the measurement configuration information, a measurement configuration of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration information, the frequency layer corresponding to the first base station and the frequency layer corresponding to the master second base station, and obtain measurement results; and   when QoS of a current service of the terminal is greater than the second threshold or the third threshold, the receiver is configured to complete, according to the measurement configuration information, a measurement configuration of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration information, the frequency layers corresponding to the first base station, the master second base station, and the secondary second base station, and obtain measurement results.   
     
     
         6 . The terminal according to  claim 2 , wherein the receiver is further configured to:
 receive an instruction message sent by the first base station to perform measurement reporting; and   determine, according to the instruction message to perform measurement reporting, whether to send the measurement result to the first base station.   
     
     
         7 . The terminal according to  claim 6 , wherein the instruction message comprises:
 at least one of instruction information for measurement reporting of the frequency layer corresponding to the first base station, instruction information for measurement reporting of the frequency layer corresponding to the master second base station, and instruction information for measurement reporting of the frequency layer corresponding to the secondary second base station.   
     
     
         8 . The terminal according to  claim 1 , wherein the receiver is further configured to:
 receive measurement configuration parameter information sent by the first base station, and complete, according to the measurement configuration parameter information, measurement management of a frequency layer corresponding to each base station of a plurality of base stations, wherein the the plurality of base stations comprise the first base station and the second base stations, and the second base stations comprise a master second base station and a secondary second base station; wherein   the measurement configuration parameter information comprises at least one of a measurement configuration parameter of a frequency layer corresponding to the first base station, a measurement configuration parameter of a frequency layer corresponding to the master second base station, and a measurement configuration parameter of a frequency layer corresponding to the secondary second base station.   
     
     
         9 . The terminal according to  claim 8 , wherein when QoS of a current service of the terminal is less than a first threshold, the receiver is configured to complete, according to the measurement configuration parameter information, measurement management of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the first base station, the frequency layer of the first base station, and obtain a first measurement result;
 when QoS of a current service of the terminal is greater than a first threshold but less than a second threshold, the receiver is configured to complete, according to the measurement configuration parameter information, measurement management of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the first base station, the frequency layer of the first base station, and obtain a first measurement result, and at the same time, measure, according to the measurement configuration parameter of the frequency layer corresponding to the master second base station, the frequency layer of the master second base station, and obtain a second measurement result;   when QoS of a current service of the terminal is greater than a second threshold, the receiver is configured to complete, according to the measurement configuration parameter information, measurement management of a frequency layer corresponding to each base station, comprises: the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the secondary second base station, the frequency layer of the secondary second base station, and obtain a third measurement result.   
     
     
         10 . The terminal according to  claim 9 , wherein that the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the first base station, the frequency layer of the first base station, comprises:
 the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the first base station, at least one of the first base station and a first base station neighboring to the first base station.   
     
     
         11 . The terminal according to  claim 9 , wherein that the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the master second base station, the frequency layer of the master second base station, comprises:
 the receiver is configured to measure, according to the measurement configuration parameter of the frequency layer corresponding to the master second base station, at least one of the master second base station and a master second base station neighboring to the master second base station.   
     
     
         12 . The terminal according to  claim 9 , wherein the sender is further configured to:
 compare the obtained second measurement result with a preset condition, and when the preset condition is met, send the second measurement result to the first base station.   
     
     
         13 . A base station, wherein the base station is a first base station, and comprises:
 a processor, configured to set up a connection to a terminal, and stay in an always connected mode, wherein the always connected mode maintains the connection to the terminal; and   a sender, configured to send first dedicated signaling to the terminal, wherein the first dedicated signaling comprises second base station list information, and the second base station list information comprises information about each second base station having context information of the terminal; and   perform data transmission with the terminal.   
     
     
         14 . The base station according to  claim 13 , wherein the sender is further configured to:
 send measurement configuration information to the terminal, wherein the measurement configuration information comprises measurement configuration information of a frequency layer corresponding to each base station of a plurality of base stations, the plurality of base stations comprise at least one of the first base station and the second base station, and the second base station comprise a master second base station and a secondary second base station.   
     
     
         15 . The base station according to  claim 14 , wherein the measurement configuration information comprises at least one of:
 measuring a frequency layer corresponding to the first base station only;   measuring frequency layers corresponding to the first base station and the master second base station only; and   measuring frequency layers corresponding to the first base station, the master second base station, and the secondary second base station.   
     
     
         16 . The base station according to  claim 15 , wherein the measurement configuration information further comprises at least one of:
 a first threshold for measuring the frequency layer corresponding to the first base station only;   a second threshold for measuring the frequency layers corresponding to the first base station and the master second base station only; and   a third threshold for measuring the frequency layers corresponding to the first base station, the master second base station, and the secondary second base station.   
     
     
         17 . The base station according to  claim 16 , wherein the sender is further configured to:
 send, to the terminal, an instruction message to perform measurement reporting.   
     
     
         18 . The base station according to  claim 17 , wherein the instruction message comprises:
 at least one of instruction information for measurement reporting of the frequency layer corresponding to the first base station, instruction information for measurement reporting of the frequency layer corresponding to the master second base station, and instruction information for measurement reporting of the frequency layer corresponding to the secondary second base station.   
     
     
         19 . The base station according to  claim 13 , wherein the sender is further configured to:
 send measurement configuration parameter information to the terminal, wherein the measurement configuration parameter information comprises at least one of a measurement configuration parameter of a frequency layer corresponding to the first base station, a measurement configuration parameter of a frequency layer corresponding to a master second base station, and a measurement configuration parameter of a frequency layer corresponding to a secondary second base station.   
     
     
         20 . The base station according to  claim 19 , wherein the base station further comprises a receiver, configured to:
 receive measurement results sent by the terminal, wherein the measurement results comprise a first measurement result and a second measurement result, the first measurement result is obtained by the terminal by performing a measurement according to the measurement configuration parameter of the frequency layer corresponding to the first base station, and the second measurement result is obtained by the terminal by measuring the master second base station according to the measurement configuration parameter of the frequency layer corresponding to the master second base station.