Narrow band handover method, device and system of wide-narrow integrated communication system

Abstract

The invention discloses a narrow band handover method in a wideband-narrowband integrated communication system, a terminal, a base station, and a core network. The core network issues information of anarrowband base station to a wideband base station, the wideband base station issues the narrowband base station information; the terminal receives the narrowband base station information and initiates the narrowband base station handover according to the narrowband base station. Through the narrowband handover method disclosed by the invention, the handover time can be reduced, the successful rate of the handover is improved, the cost is low, and the efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a handover method, device and system. Background technique [0002] At present, when the terminal of the narrowband conventional system is handed over, the terminal needs to configure a roaming list, and then the terminal only uses this list to find the base station. If a base station is added to the entire system, the roaming list of each terminal needs to be modified, which leads to The networking is not flexible enough, and it will also increase the maintenance cost, and the roaming handover time will also increase with the increase of the number of base stations in the roaming list. [0003] In addition, when the terminal is handing over, it needs to continuously detect the signal strength of each base station in the roaming list in order to select a suitable primary site. This process may cause the terminal to miss calls, and it will consume unnece...

AI Technical Summary

Problems solved by technology

[0002] At present, when the terminal of the narrowband conventional system is handed over, the terminal needs to configure a roaming list, and then the terminal only uses this list to find the base station. If a base station is added to the entire system, the roaming list of each terminal needs to be modified, which leads to The networking is not flexible enough, and it will also increase the maintenance cost, and the roaming switching time will also increase with the increase of the number of base stations in the roaming list

[0003] In addition, when the terminal is handing over, it needs to continuously detect the signal strength of each base station in the roaming list in order to select a suitable primary site. This process may cause the terminal to miss calls, and it will consume unnecessary power, thereby reducing the battery life of the terminal

[0004] On the other hand, there is also the problem of long handover time when the terminal searches for base stations in the roaming list. It is possible that the last searched base station is the appropriate primary site, and this method cannot guarantee that the optimal target base station is selected.

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