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Determination of appropriate radio resource to be requested in case of a circuit-switched (CS) fallback procedure

A circuit switching fallback and circuit switching domain technology, applied in wireless communication, electrical components, etc., can solve problems affecting CS fallback performance and wasting wireless resources

Active Publication Date: 2012-07-18
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the network may decide to allocate non-optimal resources, such as signaling channels for serving voice calls, which may affect CS fallback performance, or traffic channels for serving signaling procedures, which wastes radio resources

Method used

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  • Determination of appropriate radio resource to be requested in case of a circuit-switched (CS) fallback procedure
  • Determination of appropriate radio resource to be requested in case of a circuit-switched (CS) fallback procedure
  • Determination of appropriate radio resource to be requested in case of a circuit-switched (CS) fallback procedure

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Embodiment Construction

[0028] The present disclosure provides systems and methods for circuit switched (CS) fallback, and in particular, provides systems and methods that minimize delay, optimize radio resource allocation, and improve CS fallback reliability.

[0029] One embodiment of the present invention includes a system and method for implementing a fallback on a wireless device for circuit switched fallback from a first network that does not provide circuit switched domain services. The method includes receiving a paging message from a first network. The paging message instructs the wireless device to implement circuit switched fallback to the circuit switched network. The method includes checking information indicating a service associated with the paging message in the paging message, determining a channel type suitable for the service according to the information indicating the service, and sending a request message for initiating establishment of a wireless connection. The request message...

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Abstract

A system and method for implementing fallback on a wireless device for circuit switched fallback from a first network that does not provide a circuit switched domain service is presented. A paging message is received from the first network. The paging message instructs the wireless device to implement circuit switched fallback to a circuit switched network. The paging message is inspected for information indicative of a service associated with the paging message, and a channel type suitable for the service is determined from the information indicative of the service. A request message for initiating the establishment of a radio connection is transmitted. The request message identifies the suitable channel type, and the service is used on the circuit switched network.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to European Patent Application No. 09306075.4, filed on November 9, 2009, entitled "Determination of Appropriate Radio Resource to be Requested in Case of Circuit-Switch (CS) Fallback Procedure", and is incorporated by reference It is incorporated herein. technical field [0003] The present invention relates to systems and methods for communicating between wireless devices or user agents (UAs) and networks, and more particularly to systems for coordinating communication resources between wireless devices and networks, including circuit switched networks and methods. Background technique [0004] As used herein, the term "user agent" or "UA" may refer to a mobile device, such as a mobile phone, a personal digital assistant (PDA), a handheld or laptop computer, and any communication capable device including a mobile station (MS) or user Similar equipment including equipment (UE). In s...

Claims

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Application Information

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IPC IPC(8): H04W88/06H04W68/00
CPCH04W72/0413H04W68/12H04W36/0022H04W72/21H04W36/14H04W68/02H04W88/06H04W68/005
Inventor 雷内·福列克劳德·简-弗雷德里克·阿泽利尔
Owner BLACKBERRY LTD