Relay Node Routing ID Association for Cellular Load Dispersion
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Solution Overview
Problem
In cellular communication systems, existing technologies face challenges in dispersing load effectively across multiple paths to prevent service interruptions during packet transfer, especially when updating routing configurations can lead to erroneous transmissions.
Innovation Solution
A communication control method that configures association information of routing IDs at a donor node and uses relay nodes to transmit packets via multiple paths, allowing for load dispersion without updating the routing configuration, utilizing 'DAPS-like' solutions such as PDCP-based and BAP-based route aggregation to distribute packet transfer across multiple paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If routing configuration is updated to disperse load across multiple paths, then packet transmission reliability is improved, but erroneous transmissions may occur during the update process
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple paths and routing IDs before actual packet transmission. The donor node configures association information mapping multiple routing IDs to different paths in advance, so that when load dispersion is needed, the relay node can immediately switch between pre-configured paths without performing runtime routing updates, thereby avoiding erroneous transmissions during configuration changes
Solution Approach 2:
The patent uses association information as an intermediary mechanism between the donor node and relay node. This association information table stores pre-established mappings between routing IDs and paths, allowing the relay node to forward packets along multiple predetermined paths without needing to receive real-time routing instructions, thus eliminating the harmful effect of erroneous transmissions during routing updates
2Productivity
If multiple paths are used for packet transmission, then load dispersion is improved, but routing configuration complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the routing configuration into independent path segments. Each path has its own routing ID, and the association information table segments the mapping relationships between routing IDs and paths. This allows the system to manage multiple paths as independent units, simplifying the overall routing configuration complexity while maintaining load dispersion capability
Solution Approach 2:
The patent uses preliminary action to pre-establish the association information table at the donor node before packet transmission begins. By configuring multiple routing ID-to-path mappings in advance, the system achieves load dispersion across multiple paths without increasing runtime configuration complexity, as the relay node simply forwards packets according to pre-established associations
Data Source
AI summary
In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes configuring, at a donor node, association information of a first routing ID included in a packet and a second routing ID indicating an output destination for a relay node. The communication control method includes transmitting, at the relay node, the packet to at least one of a first relay node on a first path indicated by the first routing ID or a second relay node on a second path indicated by the second routing ID, in accordance with the association information.