Method for returning to network, and user equipment

Abstract

The invention discloses a method for returning to a network. The method includes that: when needing returning to a second network, user equipment (UE) residing in a first network performs a logical operation on a location area code of a current location where the UE is located to obtain an operation result, wherein the logical operation meets that the location area code of the first network has a corresponding relationship with a frequency point of the second network after the logical operation; the UE determines the frequency point of the second network of a location where the UE is located currently according to the operation result and the corresponding relationship between the operation result of the logical operation on the current saved location area code of the first network and the frequency point of the second network; and the UE searches a cell of the second network on the determined frequency point of the second network and initiates resident of the second network in the searched cell of the second network. The invention also discloses the UE.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for returning to a network and user equipment (UE, UserEquipment). Background technique [0002] With the development of network technology, wireless communication operators often operate networks of multiple standards at the same time. In consideration of network maintenance costs, it may not be possible to upgrade and modify the existing network equipment accordingly when introducing new technologies, such as : After the introduction of the Long Term Evolution (LTE, LongTerm Evolution) network, the equipment of the 2G / 3G network is not upgraded to support interoperability with the 4G network. Configure 4G neighbor cells one by one. [0003] At present, when the Long Term Evolution (LTE, LongTermEvolution) terminal falls back to the 2G / 3G network and needs to return to the LTE network and search for LTE signals under the 2G / 3G network, the LTE terminal can...

AI Technical Summary

Problems solved by technology

[0002] With the development of network technology, wireless communication operators often operate networks of multiple standards at the same time. In consideration of network maintenance costs, it may not be possible to upgrade and modify the existing network equipment accordingly when introducing new technologies, such as : After the introduction of the Long Term Evolution (LTE, LongTerm Evolution) network, the equipment of the 2G / 3G network is not upgraded to support interoperability with the 4G network. Configure 4G neighbors one by one

[0003] At present, when the long-term evolution (LTE, LongTermEvolution) terminal falls back to the 2G / 3G network, and needs to return to the LTE network, and search for LTE signals under the 2G / 3G network, the LTE terminal can only rely on its own algorithm to obtain the LTE frequency point. For example: the historical frequency point stored by the LTE terminal or the frequency point measured by other methods, or the LTE terminal searches for the full frequency band of LTE. This will reduce the success rate of the LTE terminal returning to the LTE network, and there will be a large delay The problem

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