China Telecom Corporation Limited

Xiaoyin Zhao

Zhijun Li

Weiliang Xie

This disclosure discloses a configuration method, a configuration device, and a configuration system of security mode and a computer readable storage medium, relating to mobile communications technologies. The configuration method of security mode includes: acquiring an integrity protection algorithm, an encryption algorithm, an original key and an operator identification of a core network from the core network, wherein the original key is also sent to a user to start a security mode, the core network is a core network of a first operator or a second operator, and the first operator and the second operator use a same shared carrier in a co-construction and sharing base station; determining a key generation algorithm preset by an operator to which the user belongs according to the operator identification; generating an integrity protection key and an encryption key of the user according to the key generation algorithm and the original key; and sending a security mode command to a terminal of the user, wherein the security mode command comprises verification information encrypted by the integrity protection key of the user, the integrity protection algorithm and the encryption algorithm, and the terminal has the key generation algorithm preset by the operator to which the user belongs.

Configuration method, device and system of security mode and computer-readable storage medium

The present disclosure relates to a method and device for redirection from LTE to NR after EPS Fallback. Disclosed is a method executed by user equipment for redirection from an LTE cell to an NR cell after EPS Fallback, including: after a VoLTE voice bearer is released, a user equipment maintains a RRC connection with an LTE cell, and measures the quality of service of a cell adjacent to the user equipment according to a cell connected mode frequency priority, wherein the priority of the NR cell is set to be higher than that of the LTE cell, so that the quality of service of the NR cell adjacent to the user equipment is measured first; and when the quality of service measurement result for the adjacent NR cell reaches a preset threshold, the user equipment redirects to the adjacent NR cell.

Growing community of inventors

Beijing, China

Xiaoyin Zhao