Method for triggering conditional switching or conditional secondary cell change, terminal and network equipment

Abstract

Provided in an embodiment of the present invention are a method, terminal and network device for triggering conditional switching or conditional secondary cell change. The method comprises the steps: receiving at least two different execution conditions for triggering CHO or CPAC configured by the network device, triggering timer configuration information and pre-configuration information of a candidate target cell, and completing corresponding configuration; when determining that the measurement result of the cell reference signal quality meets all execution conditions configured by the network equipment, starting a common trigger timer corresponding to all the execution conditions; during the operation period of the common trigger timer, continuously monitoring whether the measurement result meets all execution conditions or not, and if it is monitored that the measurement result does not meet a certain execution condition at a certain moment, stopping the common trigger timer; if the common trigger timer is overtime, executing CHO or CPAC according to the network equipment configuration. According to the embodiment of the invention, the UE can be ensured to reasonably execute CHO or CPAC, ping-pong switching is avoided, and resource management is optimized.

Description

technical field [0001] The present invention relates to the field of communication technology, and more specifically, to a method, terminal and network equipment for triggering conditional handover or conditional secondary cell change. Background technique [0002] In order to meet the ultra-low latency and ultra-high reliability requirements of future wireless communication systems, 3GPP has carried out research on mobility enhancement projects based on Rel-15 NR and LTE. The handover technology in Rel-15 is based on LTE, but compared with LTE, the NR system will increase the handover interruption time due to the ultra-high frequency range of beamforming and the delay caused by beam scanning. The 0ms interrupt time is one of the requirements of the NR system. [0003] In order to reduce handover interruption time and improve handover reliability, Rel-16 NR and LTE both introduce a Conditional Handover (CHO) mechanism. In the CHO mechanism, the network device configures ca...

AI Technical Summary

Problems solved by technology

The handover technology in Rel-15 is based on LTE, but compared to LTE, the delay caused by beam scanning due to the ultra-high frequency range of beamforming in the NR system will increase the handover interruption time

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