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A network selection method and user equipment

A technology for user equipment and network selection, which is applied in the field of communication and can solve problems such as interruption of data services

Active Publication Date: 2019-06-07
HUAWEI TECH CO LTD
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  • Claims
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Problems solved by technology

[0011] However, in the actual application process, when the UE performs CS voice or other CS services in the 2G / 3G CS network and returns to the LTE network according to the redirection information or autonomously, the data service may be interrupted for a long time, and the UE It takes a long time to return to the normal registration state of the LTE network

Method used

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  • A network selection method and user equipment
  • A network selection method and user equipment
  • A network selection method and user equipment

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Embodiment Construction

[0089] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0090] The terminology used in the description of the invention herein is for the purpose of describing particular embodiments and is not intended to be limiting of the invention.

[0091] The term "measuring an LTE cell" means that the UE measures the RSRP (Reference Signal Received Power) and / or the reference signal quality RSRQ (Reference Signal Received Quality) of the LTE cell. It can be understood that in the early stage of measurement, the UE first needs to perform...

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Abstract

The embodiment of the present invention discloses a network selection method and user equipment, which are used to solve the problem that the data service is interrupted when the UE residing in the LTE network falls back to the 2G / 3G CS network and executes the CS service, and returns to the LTE network. The rate at which the UE returns to the normal registration state of the LTE network. The method in the embodiment of the present invention includes: the user equipment falls back to the 2G or 3G network to perform the CS service from the first LTE cell, the network type of the first LTE cell is the first type, and when the user equipment performs the CS service on the 2G or 3G network, it ends , measure the LTE cells according to the LTE network information, obtain the measurement results for each LTE cell, and select the second LTE cell from the LTE cells whose measurement results meet the preset conditions to access the LTE network. The network type of the second LTE cell is the specified Describe the first type.

Description

technical field [0001] The present invention relates to the communication field, in particular to a network selection method and user equipment. Background technique [0002] CS Fallback (abbreviation: CSFB) is a long-term evolution mobile communication access technology (the access technology adopted by the fourth generation mobile communication system) (Long Term Evolution, abbreviation: LTE) to provide voice and other circuit switching (Circuit Switched, referred to as: CS) service (such as CS video, positioning service, supplementary service) solution refers to: user equipment (User Equipment, referred to as: UE) resides in the LTE network, when it is necessary to initiate or respond to a voice call or For other CS services, go to the second generation mobile communication system (2G for short: 2G) / third generation mobile communication system (3rd Generation for short: 3G) CS network to perform voice or other CS services, when in 2G / 3G After the CS network finishes perf...

Claims

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Application Information

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IPC IPC(8): H04W36/24
CPCH04W48/18H04W76/30H04W36/00224H04W36/36H04W36/144H04W36/24H04W36/14
Inventor 段小嫣张博金辉
Owner HUAWEI TECH CO LTD
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