Radio Access Network Random Access Channel Optimization
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Solution Overview
Problem
Current mechanisms lack an effective method to accurately optimize random access channels in a timely manner, leading to inappropriate configuration parameters, increased call setup and handover delays, and reduced system performance due to interference and changing network conditions.
Innovation Solution
A method where terminal devices measure and report performance data to the radio access network, allowing for timely optimization of random access configuration parameters, such as RSRP thresholds and channel resource allocation, to improve access success rates and reduce contention conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If random access configuration parameters are optimized based on static network conditions, then initial access can be established, but the configuration becomes inappropriate when network conditions change (interference, load, configuration), leading to reduced access success rates and increased delays
Solution Approach 1:
The patent implements a feedback mechanism where terminal devices measure random access channel performance (detection rate, conflict probability) and report these measurements to the network. The network uses this feedback to dynamically adjust random access configuration parameters (preamble detection thresholds, resource allocation) to match current network conditions, thereby maintaining high access success rates and reducing delays caused by outdated configurations
Solution Approach 2:
The patent transitions from static random access configuration to dynamic adaptation by enabling the network to adjust configuration parameters in real-time based on measured performance and current network state (interference levels, load conditions). This dynamic adjustment ensures configuration parameters remain appropriate as network conditions change, preventing access failures and delays
2Area of stationary object
If random access configuration parameters are set to be conservative to ensure coverage, then system coverage is maintained, but the conflict probability increases and access success rate decreases
Solution Approach 1:
The patent enables dynamic parameter adjustment by changing random access configuration parameters (preamble detection thresholds, power control settings, resource allocation) based on measured performance metrics and current network conditions. This allows the system to optimize the balance between coverage and conflict probability, adjusting parameters to maintain coverage while reducing conflicts and improving access success rates
3Reliability
If random access configuration parameters are optimized for low conflict probability, then access success rate improves, but the system cannot adapt to changing network conditions (interference, load, configuration changes)
Solution Approach 1:
The patent implements continuous feedback through terminal measurements of random access performance (detection rate, conflict probability) and network-side measurements of interference and load conditions. This feedback enables the network to continuously optimize configuration parameters, maintaining high access success rates while adapting to changing network conditions
Solution Approach 2:
The patent transforms the random access configuration from a static optimization to a dynamic adaptation process, where parameters are continuously adjusted based on real-time measurements of network conditions (interference, load, configuration changes) and performance metrics, enabling the system to maintain optimal performance across varying conditions
Data Source
AI summary
Embodiments of this application provide a communication method and a related device. The method includes: receiving, by a radio access network device, first information sent by a terminal device, where the first information includes an identifier of a beam used by the terminal device for random access and random access information of the terminal device on the beam; and optimizing, by the radio access network device, a random access channel based on the first information.