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Cell redirection method based on circuit domain fallback csfb

A circuit domain fallback and redirection technology, applied in the communication field, can solve problems such as affecting communication quality and user experience, slow system response speed, link overhead, etc., to improve communication quality and user experience, shorten delay, and expand scope. Effect

Active Publication Date: 2019-04-30
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, when the above-mentioned cell redirection fails, it will fall back to the LTE network and establish an RRC link first. Under the active call or called page, the user / application layer will initiate a voice call again, and re-perform the CSFB process and the above-mentioned cell Redirection, resulting in link overhead, call delay, slow system response, affecting communication quality and user experience

Method used

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  • Cell redirection method based on circuit domain fallback csfb
  • Cell redirection method based on circuit domain fallback csfb
  • Cell redirection method based on circuit domain fallback csfb

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Embodiment Construction

[0047] In order to make the purpose, features and effects of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0048] Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways than described here, so the present invention is not limited by the specific embodiments disclosed below.

[0049] like figure 1 As shown, when the LTE network is deployed, the coverage of the 2G network can be considered as full coverage of the entire range 10 to 12, while the 3G network may be continuous coverage of the range 11 and range 12, and the LTE network may achieve high-speed range 12. Coverage of data services.

[0050]In order to ensure the continuity of user services, combined with the progress of LTE, it is neces...

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Abstract

The invention relates to a cell redirection method based on circuit switched domain fall back (CSFB). The method comprises the following steps: carrying out packet domain service in a current service cell, wherein the current service cell does not support circuit switched domain service; redirecting a terminal to a first target cell capable of carrying out circuit switched domain service; and if the redirection fails, residing in a circuit switched domain continuously, the terminal carrying out cell selection and connecting the terminal to a second target cell capable of carrying out circuit switched domain service. The method can improve conversation establishment success rate when the CSFB-based cell redirection fails, and thus communication quality is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a cell redirection method based on circuit domain fallback CSFB. Background technique [0002] Circuit Switched Domain Fall Back (CSFB) enables User Equipment (UE) to initiate voice and other Circuit Switched (CS) services and receive voice and other CS services under LTE access paging, and can correctly process the ongoing packet switching (Packet Switch, PS) service of the terminal under the access of the Long Term Evolution (LTE for short) system. In CSFB technology, in the dual coverage area of ​​LTE and 2G / 3G, for voice, Location Services (LCS for short) and supplementary services, user equipment can trigger a fallback from LTE access to the second generation mobile communication technology (2rd- generation (2G for short) / third-generation mobile communication technology (3rd-generation, 3G for short) network access and CS service. [0003] At present, CSFB h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14
Inventor 范伟高喜春陈贤亮
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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