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A method and device for quickly returning to a long-term evolution LTE network

A fast return and long-term evolution technology, applied in connection management, electrical components, access restrictions, etc., can solve problems such as not being able to quickly return to the LTE network

Active Publication Date: 2018-11-02
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for quickly returning to the LTE network, so as to solve the problem in the prior art that the LTE terminal cannot quickly return to the LTE network after the CS voice session ends

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  • A method and device for quickly returning to a long-term evolution LTE network
  • A method and device for quickly returning to a long-term evolution LTE network
  • A method and device for quickly returning to a long-term evolution LTE network

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Embodiment Construction

[0047] In order to solve the problem in the prior art that the LTE terminal cannot quickly return to the LTE network after the CS voice session ends, an embodiment of the present application proposes a solution for quickly returning to the LTE network. In this technical solution, after the LTE terminal ends the CS voice session, for different types of CS voice sessions, different time lengths are set to search the pre-stored LTE frequency points. When any one of the pre-stored LTE frequency points is searched LTE frequency point, and if the searched LTE frequency point is an available frequency point, then reside in the searched LTE frequency point to return to the LTE network. This technical solution does not need to make major changes to the existing 2G / 3G network, and can also ensure that the LTE terminal returns to the LTE network as soon as possible after the CS voice session ends, so that users can fully enjoy high-speed LTE services.

[0048] The embodiments of the pres...

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Abstract

The present invention discloses a method and device for fast returning to a long term evolution (LTE) network, which is used for solving the problem that a conventional LTE terminal cannot fast return to the LTE network after a circuit switch (CS) voice conversion completes. The method comprises judging the type of the CS voice conversion after the CS voice conversion completes; when the type of the CS voice conversion is judged to be a circuit switched fallback (CSFB) CS voice conversion type, searching for pre-stored LTE frequency points in a preset first time period; when the type of the CS voice conversion is judged to be a single radio voice call continuity (SRVCC) CS voice conversion type, searching for pre-stored LTE frequency points in a preset second time period; and when any of the pre-stored LTE frequency points is searched and the searched LTE frequency point is available, lingering at the searched LTE frequency point, thus to return to the LTE network.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for quickly returning to a Long Term Evolution (Long Term Evolution, LTE) network. Background technique [0002] According to the 3rd Generation Partnership Project (3GPP) standard, LTE networks only have packet-switched (Packet Switch, PS) domain services, and LTE terminals need to support Circuit Switched Fallback (CSFB) in order to answer or Make a call: When the LTE terminal has a voice call or is called, after sending an Extended Service Request (Extented Service Request) message to the LTE network, the LTE network sends a redirection message to redirect the LTE terminal to the second generation communication system / A voice session (that is, a CS voice session) is performed in a circuit switched (Circuit Switch, CS) domain of a third generation communication system (The Second Generation / The Third Generation, 2G / 3G) network. Wherein...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W60/00H04W76/16H04W76/34H04L29/06
Inventor 赵琳王森王小旭常连江海涛
Owner CHINA MOBILE COMM GRP CO LTD
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