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Systems and methods for access network selection and traffic routing

  • US 10,582,366 B2
  • Filed: 03/30/2018
  • Issued: 03/03/2020
  • Est. Priority Date: 02/22/2013
  • Status: Active Grant
First Claim
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1. An apparatus of a UE comprising:

  • a memory device to store an access network detection and selection function (ANDSF) management object (MO), wherein the ANDSF MO comprises network routing rules for routing IP traffic matching a specific IP flow, at least one network routing rule identifying cellular radio access technology (RAT) types and relative wireless local area network (WLAN) routing priorities for each of the cellular RAT types with respect to WLAN access for the IP traffic flows, the relative routing priorities of cellular RAT types with respect to WLAN access defined distinctly from cellular RAT mobility selection priorities, the cellular RAT types including global system for mobile communications (GSM) enhanced data rates for GSM evolution (EDGE) radio access network (GERAN), universal terrestrial radio access network (UTRAN) and evolved UTRAN (E-UTRAN),wherein the ANDSF MO comprises an XML data scheme with leaf nodes indicating a specific RAT type corresponding to the at least one network routing rule; and

    a processor configured to;

    select a cellular RAT comprising a cellular RAT type;

    identify an available WLAN access;

    simultaneously provide connections to the WLAN access and the cellular RAT;

    compare, based on the at least one network routing rule, a relative WLAN routing priority of the cellular RAT type with respect to WLAN to form a comparison, without influencing the cellular RAT selection; and

    when the relative WLAN priority of the selected cellular RAT is less than the selected cellular RAT, route traffic through the available WLAN access based on the comparison;

    when the relative WLAN priority of the selected cellular RAT is greater than the WLAN, route traffic through the cellular RAT based on the comparison.

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