Terminal Access Control via Probability Thresholds for Sidelink Congestion
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Solution Overview
Problem
In wireless communication technologies, particularly with sidelink data transmission, terminals often face data transmission failures due to network congestion, as they lack effective access control mechanisms to manage resource allocation and quality of service, leading to service interruptions and inefficiencies.
Innovation Solution
A method and apparatus for access control in terminals that generate a random probability value for sidelink data transmission, acquire a probability threshold based on the PC5 Quality of Service Indication (PQI), and determine access control success, enabling terminals to select appropriate sidelink resources and prevent failures by comparing the probability value with the threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals transmit data by sidelink without access control, then transmission simplicity is maintained, but data transmission failure occurs due to network congestion
Solution Approach 1:
The patent changes the parameter of access control from binary (allow/deny) to probabilistic (probability threshold). The network device configures different probability thresholds for different PQIs, and terminals compare generated probability values against these thresholds to dynamically adjust access behavior, resolving the contradiction between transmission reliability and device complexity
Solution Approach 2:
The patent implements feedback through the PQI parameter that reflects network congestion status. The network device monitors congestion and adjusts probability thresholds accordingly, which are then fed back to terminals. Terminals use this feedback to adjust their transmission probability, achieving reliable transmission without complex centralized control
2Productivity
If terminals use same sidelink resource in congested network, then resource utilization is high, but data transmission failure increases
Solution Approach 1:
The patent introduces dynamic probability thresholds that change based on network congestion and PQI. Instead of static resource allocation, terminals dynamically adjust their transmission probability by comparing generated probability values against congestion-dependent thresholds, enabling the system to adapt resource utilization to actual network conditions and maintain both productivity and reliability
Data Source
AI summary
An access control method. The method is applied to a terminal. The terminal generates a random probability value for target data, acquires a probability threshold corresponding to a PQI of the target data, and acquires an access control result according to the random probability value and the probability threshold, wherein the access control result is configured to indicate whether an access control of the target data is successful.