US 12,284,555 B2
Cell handover method, apparatus and device, and storage medium
Jiren Han, Shenzhen (CN); Yin Gao, Shenzhen (CN); and Dapeng Li, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 17/793,330
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed Jan. 20, 2021, PCT No. PCT/CN2021/072792
§ 371(c)(1), (2) Date Jul. 15, 2022,
PCT Pub. No. WO2021/147880, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 202010064340.6 (CN), filed on Jan. 20, 2020.
Prior Publication US 2023/0048866 A1, Feb. 16, 2023
Int. Cl. H04W 36/22 (2009.01); H04W 36/00 (2009.01); H04W 36/08 (2009.01)
CPC H04W 36/0011 (2013.01) [H04W 36/087 (2023.05); H04W 36/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A cell handover method, applied to a first network element, comprising:
sending a first interface message to a second network element, wherein the first interface message carries User Equipment (UE) related information; and
receiving a user context modification instruction sent by the second network element, wherein the user context modification instruction is determined according to the first interface message, and the user context modification instruction is configured for triggering a handover of a target UE from a source cell to a target cell;
wherein the first network element is a New Generation Radio Access Network Node Distributed Unit (gNB-DU), and the second network element is a gNB Central Unit (gNB-CU);
wherein the sending the first interface message to the second network element comprising: in response to a load of a cell in the first network element reaching a preset threshold, triggering sending of the first interface message;
wherein the preset threshold is a sum of thresholds of all cells under the first network element.