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Group terminal switching method, device and system
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A technology for terminal switching and grouping, which is used in security devices, broadcast service allocation, network traffic/resource management, etc., and can solve problems such as high network signaling overhead and network congestion.
Active Publication Date: 2021-01-19
北京东方通网信科技有限公司
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[0005] In order to at least solve to a certain extent the problems of high network signaling overhead caused by many switching terminals and network congestion caused by signaling storms in the application prospects of IAB in high-speed rail, public transport vehicles, and factory operating platforms, this application provides a A species group terminal switching method, device, and system, used to reduce signaling overhead during terminal switching, avoid signaling storms, and alleviate network congestion
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Embodiment 1
[0027] This embodiment provides a group terminal handover method, and the execution subjects involved include a source base station, a target base station, and an AMF unit of a core network, and the specific steps are as follows.
[0028] S110, the source base station marks at least one terminal to be handed over to the target base station as a terminal group, and calculates a corresponding group base station key.
[0029] Generally, in an IAB application scenario, there will be a requirement for a large number of user terminals to be handed over from a source base station to a target base station at the same time, and these terminals can be marked as a terminal group.
[0030] In a specific embodiment, the source base station may mark the terminal according to at least one of the following methods to form a terminal group to be handed over to the target base station:
[0031] Mark the terminals accessing the same DU as a terminal group; mark the terminals within the specified...
Embodiment 2
[0048] In order to realize the above-mentioned group terminal switching method, an embodiment of the present invention provides a group terminal switching device, and each functional module of the device can be located in different positions in the mobile communication network, such as the source base station, the target base station and the AMF of the core network. unit, such as figure 2 As shown, the device includes:
[0049] A group key generation module 210, used for the source base station to mark at least one terminal to be handed over to the target base station as a terminal group, and calculate the corresponding group base station key;
[0050] The group terminal switching module 220 is used for the source base station to interact with the target base station based on the group base station key, so as to switch the terminals in the terminal group to the target base station as a whole, and each terminal in the terminal group shares the group base station key;
[0051]...
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Abstract
Embodiments of the present application provide a group terminal handover method, device, and system, which relate to the field of mobile communication technology, wherein the method includes: the source base station marks at least one terminal to be handed over to the target base station as a terminal group, and calculates the corresponding a group base station secret key; the source base station interacts with the target base station based on the group base station secret key, so as to switch the terminals in the terminal group to the target base station as a whole, and each terminal group in the terminal group The terminals share the secret key of the group base station; after the terminals in the terminal group complete the handover, the source base station triggers the access and mobility functional unit of the core network to update the local handover security process parameters, and transfer the updated handover security The process parameters are sent to the target base station for reducing signaling overhead during terminal handover, avoiding signaling storms, and alleviating network congestion.
Description
technical field [0001] The present application belongs to the field of energy application technology, and in particular relates to a group terminal switching method, device and system. Background technique [0002] In the 5G network, the radio access network (Radio Access Network, RAN) usually adopts a three-level structure of a centralized unit (CentralUnit, CU), a distributed unit (Distributed Unit, DU) and an active antenna unit (Active Antenna Unit, AAU). Integrated Access and Backhaul (IAB) is a low-cost, easy-to-deploy relay technology that makes full use of the CU / DU separation architecture. [0003] IAB has broad application prospects on platforms such as high-speed rail, public transport vehicles, and factory operating platforms. The IAB node performs relay, and the IAB node does not need to have a control function, and can also perform signal amplification and forwarding through the booster antenna. [0004] According to the existing 3rd Generation Partnership Pr...
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Application Information
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