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Back to long term evolution network method, mobile switching center and system

A long-term evolution network and long-term evolution technology, which is applied in the field of mobile switching centers and systems, and can solve problems such as UE returning to the LTE network by mistake

Active Publication Date: 2021-01-29
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Currently, since the MSC redirects all UEs to LTE, UEs that do not need to go back to the LTE network may go back to the LTE network by mistake

Method used

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  • Back to long term evolution network method, mobile switching center and system
  • Back to long term evolution network method, mobile switching center and system
  • Back to long term evolution network method, mobile switching center and system

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Embodiment Construction

[0049] 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 persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] For most UEs, due to implementation complexity and cost considerations, LTE signals and 2G / 3G signals cannot be sent and received at the same time. For example, when a UE is performing data services in an LTE network or is in an idle state, if the UE wants to initiate or receive circuit domain services (including voice calls, supplementary services, and location services, etc.), it needs to perform circuit service fallback (CircuitService Fall Back , CSFB) p...

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Abstract

The embodiment of the invention discloses a method for returning to a long-term evolution network, a mobile switching center and a system, which relate to the field of communication technology and can prevent UEs that do not need to return to the LTE network from returning to the LTE network by mistake. The method of the present invention includes: after the UE initiates CSFB, the first MSC receives the first CSFB indication corresponding to the UE sent by the MME, and the first CSFB indication is used to identify that the UE needs to return to the UE after the circuit domain service of the UE ends. LTE network: when the circuit domain service of the UE ends, send the second CSFB indication corresponding to the UE to the RNC / BSC corresponding to the UE according to the first CSFB indication, and the second CSFB indication is used to instruct the RNC / BSC to notify the UE to return to the LTE network.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for returning to a long-term evolution network, a mobile switching center (Mobile Switching Center, MSC) and a system. Background technique [0002] A Circuit Service (CS) network is a wireless network that provides circuit domain services such as voice calls. For example, coverage of 2G / 3G wireless networks such as GSM and WCDMA is very common. At the same time, with the development of network technology, packet domain (Packet Service, PS) networks that provide data services, such as Long Term Evolution (LTE), System Architecture Evolution (System Architecture Evolution, SAE), high-speed packet Access (High-Speed ​​Packet Access, HSPA), evolutionary high-speed packet access (High-Speed ​​Packet Access Evolution, HSPA+), etc. have also been widely covered. Therefore, in the current communication network, CS domain network and PS domain network coexist, op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14
CPCH04W36/0009H04W36/00224H04W36/0033H04W36/0016H04W88/005
Inventor 吴晓波刘海舒林陈燕燕靳维生
Owner HUAWEI TECH CO LTD
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