Timing Information Configuration for 5G Relay Nodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing communication technologies face challenges in configuring timing information, especially in new generation wireless communication systems like 5G, due to high-frequency channel limitations and the introduction of relay nodes, which lead to issues with timing advance and interference management.
Innovation Solution
A method and system for configuring timing information that involves predefining or configuring timing modes, reference timing alignment modes, timing advance configurations, and OFDM symbol alignments for nodes in a wireless communication system, allowing for advanced timing alignment and synchronization across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high-frequency carriers (28 GHz, 45 GHz, 70 GHz) are used to increase bandwidth, then spectrum resources are improved, but free-propagation loss and coverage performance deteriorate
Solution Approach 1:
The patent changes the frequency parameter from traditional 4G bands to high-frequency 5G bands (28 GHz, 45 GHz, 70 GHz) to access previously unavailable spectrum resources, while accepting the trade-off of increased propagation loss and implementing compensation mechanisms through beamforming and dense cell deployment
2Reliability
If more antenna elements are arranged per unit area to compensate for high-frequency loss, then coverage performance is improved, but device complexity increases
Solution Approach 1:
The patent segments the antenna system into multiple independent antenna elements that can be individually controlled and optimized, allowing beamforming operations to be performed by coordinating signals across segmented antenna groups to achieve directional gain without requiring a monolithic complex structure
Solution Approach 2:
The antenna elements serve multiple functions: they act as both transmit and receive elements, form multiple beams simultaneously for different users, and can dynamically adjust their radiation patterns based on channel conditions, reducing the need for separate dedicated components
3Ease of manufacture
If relay nodes are introduced to extend coverage in dense cell scenarios, then network deployment cost is reduced, but timing information configuration complexity increases
Solution Approach 1:
The patent performs preliminary timing alignment by pre-configuring timing advance values and uplink timing references for relay nodes before actual data transmission begins, allowing the relay nodes to synchronize their transmissions in advance and avoid timing conflicts without requiring complex real-time adjustments
Solution Approach 2:
The patent introduces timing advance commands and uplink timing references as intermediary control mechanisms that mediate between the gNodeB's scheduling decisions and the relay nodes' transmission timing, allowing indirect control of timing without requiring direct complex coordination between all network elements
4Measurement precision
If timing advance commands are used to align uplink transmission timing, then synchronization is improved, but interference management becomes more difficult with relay nodes
Solution Approach 1:
The patent applies different timing advance configurations to different relay nodes and user equipment based on their specific locations, distances, and channel conditions, allowing each node to have optimized timing parameters tailored to its local environment rather than using uniform timing settings across the entire network
Data Source
AI summary
Provided are a timing information configuration method, apparatus and system and a storage medium. The timing information configuration method includes that a first node predefines or configures timing information of a second node. The timing information includes at least one of: a timing mode, a downlink transmission timing alignment mode, a timing advance (TA) configuration mode, a TA value, an offset of a TA value, a number of orthogonal frequency division multiplexing (OFDM) symbols that an uplink transmission timing is advanced or delayed relative to a downlink transmission timing for alignment, or a number of OFDM symbols that an uplink reception timing is advanced or delayed relative to a downlink reception timing for alignment. The timing information configuration method includes that a second node determines timing information of the second node in a manner of predefinition or in a manner of being configured.