US 2021/0243664 A1 · Enhanced UE Route Selection Policy (URSP) Rule Matching

Abstract

A method for UE route selection policy (URSP) rule matching is proposed. URSP is used by a UE to determine if a detected application can be associated to an established PDU session, can be offload to non-3GPP access outside a PDU session, or can trigger the establishment of a new PDU session. The UE first finds a non-default URSP rule with a matching traffic descriptor to the application. When the UE fails to find existing PDU session or setup new PDU session with any or the route selection descriptors of the non-default URSP rule, the UE moves to another non-default URSP rule, if any, and try the matching. If all non-default URSP rules cannot be matched with the application, then the UE tries the default URSP rule, which includes a match-all traffic descriptor.

Claims20

Dependent claims

A method of User Equipment (UE) Route Selection Policy (URSP) rule matching, comprising:

(a) starting an application by a user equipment (UE) in a mobile communication network;
(b) selecting a non-default URSP rule from one or more configured non-default URSP rules by matching a traffic descriptor of the non-default URSP rule with the application;
(c) obtaining a suitable protocol data unit (PDU) session based on a list of route selection descriptors of the non-default URSP rule;
and
(d) selecting a default URSP rule only when all non-default URSP rules configured for the UE do not match the application, otherwise indicating a failure when the application matches at least one non-default URSP rule but fails to associate with any PDU session after evaluating all non-default URSP rules.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/236,974Filed 21 Apr 2021

Priority

8 Aug 2019

Published

5 Aug 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

H04W 28/0268
Traffic management, e.g. flow control or congestion control: using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI]…
H04L 45/85
Ingress point selection by the source endpoint, e.g. selection of ISP or POP: selection among different networks
H04W 8/183
Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data:…
H04W 76/11
Connection setup: allocation or use of connection identifiers

Enhanced UE Route Selection Policy (URSP) Rule Matching

Life of this patent

Enhanced UE Route Selection Policy (URSP) Rule Matching

Life of this patent

Abstract

Claims20