Access Group Eligibility for Shared Network Signaling Reduction
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Solution Overview
Problem
Existing solutions for determining access rights in shared telecommunication networks lead to significant signaling overhead and unnecessary release of RRC connections, particularly when users transition between cells with different access permissions in IDLE and CONNECTED modes.
Innovation Solution
A telecommunications network broadcasts an access group eligibility message over the air interface, allowing user equipment units to determine their access rights by comparing stored access group classifications with eligibility messages, thereby minimizing signaling and maintaining connection integrity across different network configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing solutions for determining access rights in shared networks are used, then access control is achieved, but signaling overhead increases significantly
Solution Approach 1:
The network broadcasts access group eligibility messages in advance before users attempt to access cells. Users pre-determine their access rights by comparing stored classifications with broadcast messages, eliminating the need for real-time access right determination signaling and reducing overall signaling overhead.
Solution Approach 2:
User equipment units autonomously determine their own access rights by comparing stored access group classifications with broadcast eligibility messages. This self-determination mechanism eliminates the need for users to request access rights from the network, significantly reducing uplink and downlink signaling overhead.
2Reliability
If existing access right determination methods are used, then access control is enforced, but unnecessary RRC connection releases occur
Solution Approach 1:
Users pre-determine access rights for target cells before handover by comparing broadcast eligibility messages with stored classifications. This preliminary determination prevents erroneous access right assessments during connection transitions, eliminating unnecessary RRC connection releases and maintaining connection stability.
Solution Approach 2:
The system implements a feedback mechanism where users continuously monitor broadcast access group eligibility messages and update their access right determinations. This ongoing feedback ensures that connection releases only occur when genuinely necessary, preventing unnecessary disruptions to ongoing communications.
3Reliability
If traditional access right determination is used, then network security is maintained, but IDLE and CONNECTED mode operations are misaligned
Solution Approach 1:
The patent implements a universal access right determination mechanism based on access group classifications that functions consistently across both IDLE and CONNECTED modes. Users determine access rights using the same methodology in both modes, eliminating operational misalignment while maintaining network security through centralized access group management.
Solution Approach 2:
The system uses access group classification parameters that remain consistent across different operational modes. By changing the determination methodology to rely on these universal parameters rather than mode-specific procedures, the patent achieves operational consistency while preserving security through the underlying access group framework.
Data Source
AI summary
To facilitate, e.g., determination of access rights in a shared network context, a telecommunications network transmits, in a broadcast channel over an air interface, an access group eligibility message to a user equipment unit. The access group eligibility message enables the user equipment unit to ascertain, on a basis of access group to which the user equipment unit belongs, whether the user equipment unit is eligible to operate in a cell for which the access group eligibility message is transmitted. The telecommunications network also includes a core network node which, classifies the user equipment unit in at least one of plural access groups. Further, the core network node generates an access group classification message which advises the user equipment unit as to which of the plural access groups the user equipment unit belongs. Upon receipt of the access group classification message, the user equipment unit stores an access group classification obtained from the access group classification message in a memory at the user equipment unit. An access controller of the user equipment unit (upon receiving the access group eligibility message) compares the stored access group classification with contents of the access group eligibility message to determine whether the user equipment unit is allowed access to the cell for which the access group eligibility message is transmitted.