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A csfb fallback result detection method, device, and storage medium

A detection method, a technology of falling back in the circuit domain, applied in wireless communication, electrical components, etc., can solve the problems of CSFB failure and telephone cannot be connected, and achieve the effect of improving the success rate and improving the call experience.

Active Publication Date: 2021-06-04
SHENZHEN HEYTAP TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the MT in the CSFB process, since the occurrence of various abnormal situations will probabilistically lead to the failure of the CSFB process, resulting in the failure to connect the phone, how to effectively detect the fallback result of CSFB in abnormal scenarios is particularly necessary

Method used

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  • A csfb fallback result detection method, device, and storage medium
  • A csfb fallback result detection method, device, and storage medium
  • A csfb fallback result detection method, device, and storage medium

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Embodiment Construction

[0042] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0043] Under normal circumstances, a terminal with CSFB function can search for LTE network when it is turned on, complete LTE / 2G network joint registration, and can make voice calls and calls.

[0044] The CSFB process includes three stages: 1) UE initiates a call on the LTE network (corresponding to MO), or receives paging (corresponding to MT); 2) UE falls back and searches for a suitable GSM cell / TDSCDMA cell under the guidance of the LTE network Access; 3) The UE reads the system broadcast message of the GSM cell / TDSCDMA cell and establishes a voice call.

[0045] As...

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PUM

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Abstract

The invention discloses a CSFB fallback result detection method and device, and a storage medium, including: during the CSFB execution process based on the indication information indicating that the terminal adopts a preset CSFB optimization scheme to perform voice services, it is detected that the terminal is based on the frequency of the target TDSCDMA cell. The point information sends a voice communication request message to the target TDSCDMA cell; when the trigger responds to the voice communication request message and fails to establish a voice communication link with the target TDSCDMA cell, it detects whether the terminal sends a voice communication request to the GSM cell; when the terminal sends a voice communication request to the GSM cell When the voice communication request and the voice communication link are successfully established, the voice communication status under the GSM network is detected; when it is detected that the voice communication status is disconnected, the fallback result of CSFB is determined to be fallback failure; when the voice communication status is detected as When maintaining the state, it is determined whether the terminal returns to the LTE network within a preset time period after the voice communication under the GSM network ends, so as to determine the fallback result of CSFB.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of circuit switched fallback (CSFB, Circuit Switched Fallback), and in particular to a CSFB fallback result detection method and device, and a storage medium. Background technique [0002] Since the wireless communication of Long Term Evolution (LTE, Long Term Evolution) and 2G / 3G dual-mode terminals is a single wireless mode (Signal-radio mode), therefore, dual-mode or multi-mode terminals with LTE and 2G / 3G access capabilities, When using LTE access, 2G / 3G circuit domain service signals cannot be transmitted. In order to enable a terminal (UE, User Equipment) to perform circuit domain (CS, Circuit Switched) services such as voice when accessing or camping on LTE, and to perform packet domain (PS, Packet Switched) services of the UE under LTE access ) The business is processed correctly, resulting in CSFB technology. [0003] In the CSFB process, the originator of the call is called ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00
CPCH04W36/00
Inventor 曾元清
Owner SHENZHEN HEYTAP TECHNOLOGY CO LTD