Switching method, deivce and system

Abstract

The embodiments of the present application provide a switching method, device, and system, which can ensure continuity of WD services when a UE switches from a 4G network and a future network of 4G ormore to a 3G or 2G network. The method includes: a first terminal rcieves a first message sent by asecond terminal, where the first message is used to instruct the first terminal to start measurement, the first terminal is connected to a first base station by using the second terminal, and the first base station is the base station for the first terminal and the second terminal; the first terminal performs measurement according to the first message, and obtains a first measurement report; the first terminal sends afirst measurement report to the first base station by using the second terminal; the first terminal receives a second message sent by the first base station via the second terminal, where the second message carries the identifier of a second base station, and is used to indicatethat the first terminal is directly connected to the second base station; and the first terminal is directly connected to the second base station according to the second message.

Description

[0001] This application claims the priority of the Chinese patent application with the application number 201710109483.2 and the title of the invention "a communication method" submitted to the China Patent Office on February 27, 2017, the entire contents of which are incorporated in this application by reference. technical field [0002] The present application relates to the technical field of communications, and in particular to a handover method, device and system. Background technique [0003] The smart phone industry is mature, the market is about to become saturated, the access and data card market has declined, and wearable devices (Wearable Device, WD) are one of the future strategic directions of various companies. [0004] At present, there are high-performance user equipment (User Equipment, UE) around most WDs. In order to increase the transmission efficiency of WDs, the requirement for WDs to access the network through UEs has been written into the 3rd Generatio...

AI Technical Summary

Problems solved by technology

[0005] However, when the UE needs to handover to the 3G or 2G network, if the eNB still selects the same target base station for the UE and the WD according to the measurement report reported by the UE as in the 4G network, and performs joint handover for the UE and the WD, it may cause WD cannot reside in the target base station, so business continuity cannot be guaranteed

For example, if figure 1 As shown, if eNB1 should select base station subsystem (BSS) 2 as the target base station of WD according to the measurement report reported by UE, but WD is far away from BSS2, so that WD cannot camp on the target base station, so it cannot guarantee business continuity

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