Patent ID: 9713069
Date: 2017-07-18
CPC Classifications: H04W

Claim:
1. A method for performing a traffic steering in a wireless communication system, the method performed by a user equipment (UE) and comprising: transmitting, to a first access network, UE traffic steering preference information, wherein the UE traffic steering preference information indicates whether the UE prefers a first traffic steering rule to a second traffic steering rule; receiving, from the first access network, traffic steering information, wherein the traffic steering information is configured based on the UE traffic steering preference information; evaluating the traffic steering using at least one of the first traffic steering rule and the second traffic steering rule based on the traffic steering information, wherein the first traffic steering rule is configured by access network discovery and selection functions (ANDSF), and the second traffic steering rule is configured by the first access network; and performing the traffic steering between the first access network and a second access network based on the result of the evaluation of the traffic steering, wherein, when the UE traffic steering preference information indicates that the UE prefers the first traffic steering rule to the second traffic steering rule and the ANDSF is an enhanced ANDSF comprising at least one ANDSF management object (MO), the traffic steering information includes information for the second traffic steering rule, and wherein, when the UE traffic steering preference information indicates that the UE prefers the first traffic steering rule to the second traffic steering rule and the ANDSF is a legacy ANDSF not comprising the at least one ANDSF MO, the traffic steering information does not include the information for the second traffic steering rule.