PSP-ID Mapping for MulteFire Network Access
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Solution Overview
Problem
In MulteFire networks, user equipment (UE) lacks a mechanism to determine the long-format service provider identity (PSP-ID) supported by the access device, leading to difficulties in network access and increased signaling overhead due to potential network rejection when the UE requests access to unsupported PSP-IDs.
Innovation Solution
The method involves determining a short-format PSP-ID corresponding to a long-format PSP-ID, obtaining this short-format PSP-ID from the access device, and using mapping relationships or algorithms to verify if the access device supports the intended long-format PSP-ID, thereby selecting the appropriate access device for network access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the UE uses only the short-format PSP-ID for network access, then the air interface resources are saved and the system broadcast is simplified, but the UE cannot accurately determine whether the access device supports the required service provider, leading to network access failures
Solution Approach 1:
The PSP-ID is segmented into two formats: short-format for broadcast transmission and long-format for precise identification. The short-format PSP-ID is used in system broadcast to save air interface resources, while the long-format PSP-ID is obtained through dedicated signaling to enable accurate service provider matching and network access determination.
Solution Approach 2:
The UE performs preliminary action by obtaining the long-format PSP-ID through dedicated signaling before attempting network access. This advance acquisition of complete service provider identification information enables the UE to verify compatibility with the access device beforehand, preventing failed access attempts and improving overall network access success rate.
2Device complexity
If the UE requests access without verifying PSP-ID support, then the access process is simplified, but signaling overhead increases due to network rejections
Solution Approach 1:
The UE performs preliminary verification of PSP-ID support by obtaining the long-format PSP-ID and comparing it with the required service provider identity before initiating network access. This advance verification prevents incompatible access attempts, thereby reducing signaling overhead caused by network rejections and unnecessary retransmissions.
Solution Approach 2:
The system implements feedback mechanism where the access device provides information about supported long-format PSP-IDs to the UE through dedicated signaling. The UE uses this feedback information to make informed access decisions, avoiding attempts to access services that are not supported, thus reducing unnecessary signaling overhead.
Data Source
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AI summary
The present disclosure provides a method and apparatus for providing service provider identity, an access device and a terminal device. The method includes: determining a second-format second participating service provider identity (PSP-ID) corresponding to a first-format first PSP-ID of a service provider to be accessed; obtaining a second-format third PSP-ID sent from a first access device; when the third PSP-ID includes the second PSP-ID, selecting the first access device to access the service provider; or, obtaining the second-format third PSP-ID sent from the first access device, determining a first-format fourth PSP-ID that is supported by the first access device and is corresponding to the third PSP-ID; when the fourth PSP-ID includes the first PSP-ID, selecting the first access device to access the service provider.