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Enhanced ue route selection policy (ursp) rule matching

A user equipment and path selection technology, applied in the field of wireless communication, can solve problems such as no PDU session, undefined UE behavior, undefined, etc.

Pending Publication Date: 2020-04-17
MEDIATEK INC
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] UE behavior is undefined if the application finds a matching traffic descriptor in a non-default URSP rule, but no suitable existing PDU session exists and the UE fails to successfully establish a PDU session for all routing descriptors
Also UE behavior is undefined if the application cannot match any non-default URSP rules

Method used

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  • Enhanced ue route selection policy (ursp) rule matching
  • Enhanced ue route selection policy (ursp) rule matching
  • Enhanced ue route selection policy (ursp) rule matching

Examples

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Embodiment Construction

[0019] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0020] figure 1 An example 5G network 100 supporting Enhanced User Equipment (UE) Path Selection Policy (URSP) rule matching is described according to a novel aspect. The 5G New Radio (NR) system 100 includes a user equipment UE 101, a base station gNB 102, access and mobile Function (Access and Mobility Function, AMF) 103, session management function (Session Management Function, SMF) 104, policy control function (Policy Control Function, PCF) 105, unified data management function (Unified Data Management, UDM) 106. exist figure 1 In the example of , UE 101 and its serving base station gNB 102 are part of a radio access network RAN ​​120 . In the access stratum (Access Stratum, AS), the RAN 120 provides radio access for the UE 101 through a radio access technology (RAT). At the Non-Access Stratum (NAS), the AMF 103 communicates wi...

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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 tonon-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 theUE fails to find the 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, andtries 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.

Description

[0001] cross reference [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 62 / 717,352, filed August 10, 2018, entitled "Performance Enhancement in 5G System," No. 16 / 535,730, U.S. patent application filed August 8, 2019, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates generally to wireless communications. In particular, it relates to an Enhanced User Equipment (UE) Routing Policy (URSP) rule matching method in 5th generation New Radio (NR) systems. Background technique [0004] Wireless communication networks have grown exponentially over the years. Long-Term Evolution (LTE) systems provide peak data rates, low latency, improved system capacity, and low operating costs due to simple network structures. The LTE system, also known as the 4G system, also provides seamless integration of legacy wireless networks, such as GSM, CDMA, and Universal Mobile Tel...

Claims

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Application Information

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IPC IPC(8): H04W40/00H04L47/20
CPCH04W28/24H04W28/065H04W76/10H04W76/20H04W76/22H04W28/0268H04W28/12H04L45/85H04W40/02H04W48/12H04L47/20H04L45/306H04W68/02H04W76/27H04L67/141H04L67/146H04L67/148H04W28/0215H04W28/0252H04W28/04H04W48/18H04W84/042H04W76/11H04W8/183H04L65/1101
Inventor 皇甫建君蔡孟廷
Owner MEDIATEK INC
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