A secondary node control method in dual connectivity and base station

Abstract

The embodiment of the invention provides a secondary node control method in double connection and a base station, and the method comprises the steps: obtaining a radio access network notification areacode of a terminal, and issuing measurement configuration information to the terminal, so that the terminal reports a measurement report according to the measurement configuration information; locally storing all cell information of which the reference signal receiving power RSRP value is higher than a preset threshold value in the measurement report as a first adjacent cell list; locally storinga cell with the same radio access network notification area code as the terminal in the first adjacent cell list as a second adjacent cell list; and determining the secondary node in the second adjacent cell list to establish dual connection. According to the auxiliary node control method in dual connection and the base station provided by the embodiment of the invention, different application scenarios are comprehensively considered, and the auxiliary node is selected to establish dual connection according to the channel quality and the data flow of the terminal, so that the performance of the terminal is maximized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for controlling a secondary node in dual connectivity and a base station. Background technique [0002] New radio (new radio, NR) systems aim to provide high transfer rates, low latency, packet optimization, and improved system capacity and coverage. Now, in order to enhance the mobile performance of the network and increase the user throughput, a new enhanced scheme called dual connectivity (Dual Connectivity, DC) is introduced. The terminal first connects to the master node (MasterNode, MN), and then adds a secondary node (SecondaryNode, SN) according to the situation, for example, service requirements, wireless environment, equipment capabilities, etc. The MN and SN provide services for the terminal at the same time, that is, dual connectivity. Then how to select the SN to establish the dual connectivity becomes an urgent problem to be solved....

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the technology of selecting SN to establish dual connectivity is relatively single. Some methods are used to add SNs blindly, some are added based on neighboring cell measurement reports, and some are added based on terminal traffic.

[0004] However, the SN addition methods provided by the above-mentioned existing technologies all have their own problems. Using blind SN addition may add neighboring cells with insufficient signal quality as the SN of the terminal, resulting in a decrease in dual connectivity performance.

The SN addition method based on the neighbor cell measurement report will select the neighbor cell according to the measurement report reported by the terminal, which ensures the performance of dual connectivity, but if the SN keeps changing, it will increase the signaling load on the Xx interface

Using the SN addition method based on terminal traffic, adding SN nodes without considering the size of terminal traffic will cause waste of resources

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