GUTI Allocation via Service Request Signaling in 5G Networks
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Solution Overview
Problem
The existing generic UE configuration update procedure for allocating a new 5G-GUTI in 5G mobile networks is not guaranteed to succeed and increases signaling load, leading to inefficiencies in processing for both the UE and the network.
Innovation Solution
A method where a UE processor receives a paging message, transmits a request to the network, and receives a signaling response indicating a new temporary identity, which can be included in a SERVICE ACCEPT or SERVICE REJECT PDU, allowing the UE to implicitly or explicitly acknowledge the new identity, thereby optimizing the GUTI allocation process without requiring a separate configuration update procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the generic UE configuration update procedure is used to allocate a new 5G-GUTI, then the requirement for new GUTI allocation can be met, but the signaling load increases and processing load for both UE and network increases
Solution Approach 1:
The patent merges the GUTI allocation function with the existing service request procedure. Instead of using a separate generic UE configuration update procedure, the network node allocates the new 5G-GUTI and includes it in the service accept message that is already sent to the UE during service request. This combining approach eliminates the additional signaling overhead while maintaining reliable GUTI allocation.
2Reliability
If the generic UE configuration update procedure is used, then GUTI allocation can be performed, but there is no guarantee that the procedure can be performed or performed successfully
Solution Approach 1:
By integrating GUTI allocation into the service request procedure, the patent ensures that the allocation is performed as a guaranteed part of the connection establishment process. The service accept message, which is already reliably delivered to the UE, now definitely includes the new 5G-GUTI, eliminating the uncertainty about procedure execution.
3Reliability
If an additional procedure is performed for GUTI allocation, then the requirement can be met, but processing load for both UE and network increases
Solution Approach 1:
The patent combines multiple functions into the service request procedure: service establishment and GUTI allocation. The network node performs both functions in a single integrated process, and the UE handles both in a single message exchange. This eliminates the need for separate processing steps, thereby improving productivity while maintaining reliable GUTI allocation.
Data Source
AI summary
Examples pertaining to improved Globally Unique Temporary Identity (GUTI) allocation after establishment of mobile-terminated connection in mobile communications are described. An apparatus implemented in a UE receives a paging message from a network node of a wireless network. The apparatus then transmits a request to the network node responsive to receiving the paging message. In response to transmitting the request, the apparatus receives a signaling from the network node, with the signaling indicating a new temporary identity of the UE.