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Communication device and method for automatic fast return of preferred radio access technology

A technology of radio access and communication equipment, which is applied in wireless communication, electrical components, connection management, etc., and can solve problems such as reducing overall communication performance

Active Publication Date: 2017-03-01
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long latency times can be frustrating for users and can degrade overall communication performance

Method used

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  • Communication device and method for automatic fast return of preferred radio access technology
  • Communication device and method for automatic fast return of preferred radio access technology
  • Communication device and method for automatic fast return of preferred radio access technology

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Embodiment Construction

[0015] The following is a disclosure of preferred embodiments of the present invention, but they are not intended to limit the present invention. A person of ordinary skill in the technical field of the present invention can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be defined by the previous claims.

[0016] figure 1 It is a block diagram of a communication device according to an embodiment of the present invention. The communication device 100 may be a device such as a notebook, a mobile phone, a portable game device, a portable multimedia player, a global positioning system (GPS), a receiver, a personal digital assistant (PDA), a tablet computer, etc. The communication device 100 may include at least one baseband signal processing device 110, a radio frequency (RF) signal processing device 120, a processor 130, a storage device 140, and an antenna...

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Abstract

A communications apparatus is located in a network environment comprising a plurality of districts belonging to different radio access technologies (RAT), and includes an RF signal processing device, a baseband signal processing device and a processor. The processor camps on a first cell of a first RAT, collects cell selection / reselection parameters of one or more frequencies of the first RAT in an autonomous fast return (AFR) list, switches from the first RAT to the second RAT to camp on a second cell of the second RAT, establishes a connection with a peer communications apparatus via the second cell, receives a connection release message or a channel release message from the second cell to release the connection, and performs a cell selection procedure or a redirection procedure according to the AFR list to camp on a third cell of the first RAT. By the present invention, the preferable RAT can be returned faster.

Description

Technical field [0001] The present invention relates to communication equipment and related methods, and particularly relates to communication equipment and related methods that automatically and quickly return to a preferred radio access technology (Radio Access Technology, RAT). Background technique [0002] The evolution of wireless communication technology usually requires that the updated system / network is compatible with the existing system / network. Communication standards that define the operation of new technologies usually require new systems to work with existing systems. For example, the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standard requires that wireless communication devices can both use Circuit Switched (CS) networks for voice calls and The LTE network can be used for voice calls. For example, LTE allows a Circuit Switched Fall Back (CSFB) process, and in the CSFB process, LTE mobile phones can use the existing architecture in the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14H04W36/24H04W76/00
Inventor 陈宏岳李吉真蔡智元陈俊宾赖彦丞
Owner MEDIATEK INC