Multi-Beam Random Access Configuration for LTE Networks
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Solution Overview
Problem
The existing resource configuration methods for LTE networks are inapplicable to multi-beam networks, necessitating a solution for downlink and uplink synchronization in such environments.
Innovation Solution
A resource configuration method and apparatus that involves obtaining and utilizing configuration information, including random access configuration and downlink signal parameters, to facilitate access in multi-beam networks, with specific parameters like random access resources, preambles, and signal associations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE random access resource configuration method is used, then the configuration process is simple, but it cannot be applied to multi-beam networks
Solution Approach 1:
The patent segments the random access configuration by associating different random access resources with different downlink signals (SSBs) in multi-beam networks. Each downlink signal is linked to specific random access resources, allowing the terminal to select appropriate resources based on the detected downlink signal, thus adapting LTE configuration to multi-beam environments while maintaining clarity and manageability.
Solution Approach 2:
The patent introduces downlink signals (SSBs) as intermediaries to bridge the random access configuration and multi-beam network operations. By associating random access resources with downlink signals, the system uses these signals as mediators to enable proper resource selection and configuration in multi-beam networks, resolving the incompatibility between LTE configuration and multi-beam requirements.
2Reliability
If multiple downlink signals are transmitted using multiple beams, then coverage and synchronization are improved, but random access resource association becomes complex
Solution Approach 1:
The patent segments the random access resources and associates them with specific downlink signals (SSBs). Each downlink signal is linked to dedicated random access resources, allowing the terminal to independently manage resource selection for each beam direction. This segmentation simplifies the association process while maintaining the benefits of multi-beam synchronization and coverage.
Solution Approach 2:
The patent applies local quality by assigning different random access resource characteristics to different downlink signals based on their specific beam directions and coverage areas. Each downlink signal-SRB pair has tailored resource associations optimized for its local coverage zone, enabling precise synchronization and reliable access while avoiding the complexity of uniform resource allocation across all beams.
3Productivity
If the terminal selects random access resources based on detected downlink signal, then access efficiency is improved, but configuration information requirements increase
Solution Approach 1:
The patent makes the downlink signal (SSB) serve multiple functions: it provides synchronization information, indicates beam direction, and triggers the selection of associated random access resources. By making the SSB multi-functional, the system improves random access efficiency without requiring separate configuration messages for resource association, thus reducing overall information overhead while maintaining high access productivity.
Data Source
AI summary
This application discloses a resource configuration method and an apparatus. The method includes: obtaining, by a terminal device, configuration information, where the configuration information includes at least one piece of the following information: random access resource configuration information and downlink signal parameter information; and accessing, by the terminal device, a network device based on the configuration information. A corresponding apparatus is also disclosed.