Subnetwork Dual-Identifier Scheme for Collision-Free 6G Synchronization
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Solution Overview
Problem
The challenge of subnetwork ID allocation in 6G networks is the potential for ID collisions due to mobility and high density, which threatens the provision of extreme performance requirements in scenarios like in-vehicle and in-body networks, and increases computational complexity and power consumption.
Innovation Solution
A dual-identifier scheme is introduced, where a first network device obtains and transmits a synchronization signal based on a first identifier and uses a second identifier for data communication, enabling flexible and dynamic identifier configuration with low complexity operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single identifier is used for subnetwork synchronization and data communication, then the system complexity is low, but ID collisions occur due to mobility and high density
Solution Approach 1:
The identifier system is segmented into two distinct identifiers: a first identifier (subnetwork ID) used for synchronization signal transmission and a second identifier (cell-specific ID) used for data communication. This segmentation allows each identifier to serve its specific function independently, preventing collisions between synchronization and data channels while maintaining clear functional separation in the identifier management system.
2Reliability
If traditional ID allocation is used in high-density subnetworks, then device simplicity is maintained, but ID collisions increase due to mobility and high density
Solution Approach 1:
By dividing the identifier system into synchronization-specific and data-communication-specific identifiers, the patent enables targeted resource allocation. Terminal devices only need to process and manage identifiers relevant to their current operation mode, reducing computational overhead and power consumption compared to managing a single comprehensive identifier system that must handle all functions.
3Reliability
If a dual-identifier scheme is implemented, then ID collisions are avoided and communication reliability improves, but computational complexity increases
Solution Approach 1:
Each identifier is optimized for its specific local function: the first identifier is dedicated to synchronization signal generation and recognition, while the second identifier is dedicated to data communication. This local optimization allows terminal devices to use simple, efficient processing algorithms tailored to each specific task rather than requiring complex universal processing logic.
Solution Approach 2:
The network device performs preliminary actions by generating and transmitting both identifiers in advance through different channels. The first identifier is embedded in synchronization signals, while the second identifier is provided through data communication channels. This preliminary provision of identifiers eliminates the need for complex real-time computation and decision-making during active communication.
Data Source
AI summary
Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for identifier determination of a subnetwork. In example embodiments, a first network device in a subnetwork of a radio access network obtains a first identifier and a second identifier of the subnetwork. Then, the first network device transmits, to one or more terminal devices in the subnetwork, a synchronization signal, wherein the synchronization signal is based on the first identifier. Further, the first network device uses the second identifier in data communication, within the subnetwork, with at least one of the one or more terminal devices.