Dynamic Radio Bearer Mapping for Wireless Traffic Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in adapting to varying traffic demands due to fixed transmission configurations, leading to reduced quality, resource inefficiency, and increased complexity and costs.
Innovation Solution
Implementing a flexible configuration method for lower-layer radio bearers to enhance adaptability and robustness, allowing for dynamic association and reconfiguration of radio bearers based on traffic needs, applicable to both Uu and PC5 air interfaces, and extendable to relay-base station communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If fixed transmission configurations are used, then system complexity is reduced, but adaptability to varying traffic demands deteriorates
Solution Approach 1:
The patent implements dynamic configuration of lower-layer transmission paths by introducing a mapping relationship between radio bearers and RLC bearers that can be flexibly adjusted. The network device can dynamically associate multiple RLC bearers with a single radio bearer or vice versa, allowing the system to adapt to varying traffic demands without fixed configurations, thereby resolving the contradiction between system complexity and adaptability.
Solution Approach 2:
The patent creates a universal mapping mechanism where RLC bearers can serve multiple radio bearers and radio bearers can utilize multiple RLC bearers. This multi-functional mapping relationship allows the same RLC bearer resources to be shared across different radio bearers, reducing overall system complexity while maintaining high adaptability to different traffic scenarios.
2Reliability
If excess resource configurations are provided, then traffic quality is improved, but resource efficiency deteriorates
Solution Approach 1:
The patent merges multiple RLC bearers with a single radio bearer when traffic conditions allow, enabling resource sharing and consolidation. By combining RLC bearer resources that can serve the same radio bearer, the system ensures adequate resources for high traffic quality while avoiding the waste of maintaining separate dedicated resources, thus improving resource efficiency without compromising traffic quality.
Solution Approach 2:
The patent dynamically changes the mapping parameters between radio bearers and RLC bearers based on traffic conditions. When traffic quality requirements are high, the system adjusts the mapping to allocate more RLC bearer resources; when requirements are lower, it consolidates resources. This dynamic parameter adjustment ensures appropriate resource allocation without excessive configurations, balancing traffic quality and resource efficiency.
3Adaptability or versatility
If flexible configuration of lower-layer transmission paths is implemented, then adaptability to traffic needs is improved, but device complexity increases
Solution Approach 1:
The patent introduces a mapping relationship as an intermediary layer between radio bearers and RLC bearers. This mapping mechanism serves as a mediator that manages the complex associations between multiple bearers, allowing flexible configuration without directly complicating the underlying transmission paths. The mapping relationship abstracts the complexity, enabling traffic-adaptive configurations while keeping device implementation manageable.
4Reliability
If multiple RLC bearers are associated with a single radio bearer, then transmission robustness is improved, but system complexity increases
Solution Approach 1:
The patent segments the association between radio bearers and RLC bearers into manageable mapping relationships. Instead of creating a complex direct many-to-many association, the system uses a segmented mapping approach where the network device independently configures and manages each mapping relationship. This segmentation reduces bearer management complexity while still enabling multiple RLC bearers to support a single radio bearer for enhanced transmission robustness.
Data Source
AI summary
Method and device for wireless communications. A first node receives a first message, the first message configuring at least first RLC bearer; and receives a second message, the second message indicating that the at least first RLC bearer is/are a candidate of multiple radio bearers; and receives a third message, the third message indicating that the at least first RLC bearer is/are associated with a first radio bearer, the first radio bearer being one of the multiple radio bearers; and transmits a data unit of the first radio bearer via the at least first RLC bearer as a response to receiving the third message; herein, the second message is an RRC layer signaling, while the third message is a signaling of a protocol layer below the RRC layer. This application can ensure a fast reconfiguration of radio bearers and enhance the transmission adaptability.