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

Abstract

The present invention relates to the communication field, in particular to a method and device for setting a PSCell based on a non-independent networking. It is used to improve the utilization rate of 5G resources and ensure the throughput of the cell. The method is as follows: for each SgNB, set the corresponding set of candidate NR cells in advance, when the UE that has established the ED-DC switches between the main base stations, the T-MeNB determines to communicate with the S-MeNB based on the notification of the S-MeNB The SgNB that has a cooperative relationship selects an NR cell from the set of candidate cells preset by the corresponding SgNB and sets it as the PSCell. In this way, T‑MeNB can accurately add the PSCell of SgNB after UE handover, so that UE can continue to use the services provided by MCG and SCG after handover, thereby effectively improving the utilization rate of 5G resources and ensuring cell throughput , and also reduce the resource load of the MeNB.

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

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