Method, device and system for acquiring radio capability information of user equipment (UE)

Abstract

The embodiment of the invention discloses a method, a device and a system for acquiring the radio capability information of user equipment (UE). The method comprises the following steps of: after the UE is switched to a target base station in a connecting state or establishes radio resource control (RRC) connection with the target base station in an idle state, sending a radio capability inquiring message to the UE by the target base station to ensure that the UE returns the radio capability information to the target base station according to the radio capability inquiring message; and receiving the radio capability information from the UE by the target base station, wherein the radio capability information corresponds to the radio capability inquiring message. In the embodiment of the invention, when the UE is switched to the target base station or establishes the RRC connection with the target base station in the idle state, the target base station inquires the radio capability information from the UE, thereby the correctness for acquiring the radio capability information of the UE at a network side is improved.

Description

technical field [0001] The present invention relates to the field of mobile communication technology, in particular to a method, device and system for acquiring wireless capability information of user equipment Background technique [0002] In a mobile communication system, before the network side allocates resources and services to the user equipment, it needs to obtain the wireless capability information of the user equipment, so as to ensure that the resources and services allocated to the user equipment match the wireless capability information of the user equipment. [0003] In the LTE (Long Term Evolution, long-term evolution) system, according to different application scenarios, the network side obtains the wireless capability information of the user equipment in the following three ways: [0004] (1) When the user equipment accesses the network for the first time, if figure 1 As shown, it is a flowchart of a method for obtaining wireless capability information of us...

AI Technical Summary

Problems solved by technology

[0041] Since the LTE-A user equipment has both the LTE-A wireless capability and the LTE wireless capability, when the user equipment accesses the LTE network for the first time, it can only report the LTE wireless capability information but not the LTE-A wireless capability information. Therefore, the MME can only store the LTE radio capability information of the user equipment

When the user equipment is handed over to the LTE-A base station in the connected state, or moves to the LTE-A base station in the idle state and initiates a connection, the LTE-A base station can only obtain the LTE wireless capability information of the user equipment from the MME instead of the LTE -A wireless capability information, therefore, the LTE-A base station cannot allocate LTE-A resources and services to the user equipment, resulting in the user equipment not being able to enjoy the services provided by the new features of LTE-A

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