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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 the direction of wireless communication, electrical components, etc., can solve the problems of CSFB failure, telephone can not be connected, etc.

Active Publication Date: 2020-12-22
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

[0047] 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.

[0048] 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.

[0049] 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 / WCDMA cell under the guidance of the LTE network Access; 3) The UE reads the system broadcast message of the GSM cell / WCDMA cell and establishes a voice call.

[0050] With t...

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PUM

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Abstract

The invention discloses a CSFB fallback result detection method, device and storage medium, which include: in the process of executing CSFB based on the instruction information instructing the terminal to adopt a preset CSFB optimization scheme to perform voice services, the terminal performs CSFB according to the target WCDMA cell frequency point information. Send an establishment voice call request message to the target WCDMA cell; when responding to the voice call request message and successfully establishing the voice call link, it is detected that the terminal receives the routing area update rejection message and begins to detect the voice call status; when the voice call is detected When the status is disconnected, it is determined that the fallback result of CSFB is fallback failure; when it is detected that the voice call status is on hold, it is determined whether the terminal returns to the LTE network within the preset time after the voice call under the WCDMA network ends. Determine the retracement outcome 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): H04W36/00H04W36/14
CPCH04W36/0083H04W36/1443H04W36/00224
Inventor 曾元清
Owner SHENZHEN HEYTAP TECHNOLOGY CO LTD