RRC Access Control for Reliable Multicast/Broadcast Services
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Solution Overview
Problem
Conventional communication technologies lack an access control solution for radio resource control (RRC) establishment/re-establishment of broadcast/multicast services, affecting the reliability of communication services.
Innovation Solution
An access control method that determines a transmission mode based on the service type and selects appropriate access control parameters for unicast or multicast/broadcast modes, using NAS and AS access control parameters, configured by protocols, core networks, or system information, to enhance reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional access control solutions are used for unicast services only, then the access control process is simple, but broadcast/multicast services cannot enter connected status reliably
Solution Approach 1:
The patent segments the access control process into two distinct paths: one for unicast services and another for broadcast/multicast services. The determination module identifies the service type and selects appropriate access control parameters accordingly, allowing broadcast/multicast services to have dedicated access control mechanisms while unicast services continue using existing procedures. This segmentation resolves the contradiction by providing reliability-specific controls for multicast/broadcast without complicating the overall system beyond necessity.
Solution Approach 2:
The patent introduces dynamic adaptability by enabling the system to switch between different access control parameter sets based on service type. The determination module dynamically selects between unicast access control parameters and broadcast/multicast access control parameters, allowing the access control process to adapt its complexity level according to the specific service requirements. This dynamic approach maintains simplicity for standard unicast while providing enhanced reliability controls when needed for broadcast/multicast services.
2Reliability
If different access control parameters are selected for different transmission modes, then the reliability of multicast/broadcast services is improved, but the access control process becomes more complex
Solution Approach 1:
The determination module automatically identifies the service type and selects the appropriate access control parameter set without requiring manual configuration or complex external management. The system self-services by internally determining whether unicast or broadcast/multicast parameters are needed and applying the correct set, thereby improving reliability through proper parameter selection while minimizing the operational complexity burden on network operators or system administrators.
Data Source
AI summary
Provided are an access control method and terminal. The method includes: determining a transmission mode according to a service type of data to be transmitted; and selecting an access control parameter corresponding to the determined transmission mode to perform an access control. Transmission modes include a unicast transmission mode and a multicast/broadcast transmission mode, and different transmission modes correspond to different access control parameters.