Method and device for setting PSCell based on non-independent networking

Abstract

The invention relates to the field of communication, in particular to a method and device for setting a PSCell based on non-independent networking, thereby improving the utilization rate of 5G resources and ensuring the cell throughput. The method comprises the following steps: for each SgNB, presetting a corresponding alternative NR cell set; and when the UE with the established ED-DC is switchedbetween main base stations, determining the SgNB having a cooperative relationship with the S-MeNB by a T-MeNB based on the notification of the S-MeNB, and selecting one NR cell from the preset alternative cell set corresponding to the SgNB as the PSCell. Thus, after the UE is switched, the T-MeNB can accurately add the PSCell of the SgNB, so that the UE can continue to use services provided by the MCG and the SCG after being switched, the utilization rate of 5G resources is effectively improved, and the cell throughput is ensured; meanwhile, the resource load of the MeNB is also reduced.

Description

technical field [0001] The invention relates to the communication field, in particular to a confirmation method and device for setting a PSCell based on a non-independent networking. Background technique [0002] Currently, two networking schemes, Non-Stand Alone (NSA) and StandAlone (SA), are introduced into the 5G standard. As a transitional solution, non-standalone networking aims to increase bandwidth in hotspot areas. In non-standalone networking, 5G base stations do not have an independent signaling plane and rely on 4G base stations and 4G core networks to work. The independent networking can realize all the new features of 5G, which is conducive to giving full play to the full capabilities of 5G. It is a 5G target solution recognized by the industry. [0003] However, in the initial stage of 5G network construction, due to practical issues such as technical capabilities and equipment costs, non-independent networking solutions are temporarily used to build 5G networ...

AI Technical Summary

Problems solved by technology

However, under the existing protocol, during the UE handover process, the X2 port handover request message sent by the S-MeNB to the T-MeNB only carries the base station identification information of the SgNB, and there are usually multiple cells within the jurisdiction of an SgNB. Then, based on the base station identification information of the SgNB, the T-MeNB cannot accurately determine which cell within the jurisdiction of the SgNB is used as the primary cell (SpCell of a secondary cellgroup, PSCell) in the secondary cell group, and thus cannot realize that after the handover of the UE, The UE is still jointly served by the Master Cell Group (MCG) and the source Secondary Cell Group (SCG). In this way, it is impossible to verify the functional characteristics of the PScell ​​unchanged MeNB handover

Images