Relay Node Synchronization Block Forwarding for mmWave Coverage
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Solution Overview
Problem
In network densification scenarios with millimeter wave communication, relay nodes face challenges in maintaining system synchronization, beam measurement, and mobility management due to limited coverage and increased power consumption when forwarding synchronization signal blocks in a beam sweeping manner.
Innovation Solution
A method and apparatus that involve a node receiving and transmitting synchronization signal blocks with different indexes, including physical broadcast channels and demodulation reference signals, to improve coverage and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a relay node forwards synchronization signal blocks in a beam sweeping manner, then coverage capability is improved, but power consumption increases
Solution Approach 1:
The relay node segments the synchronization signal block transmission by selecting and forwarding only specific synchronization signal blocks with different indexes rather than forwarding all beams. This segmentation allows the relay node to reduce power consumption while maintaining coverage capability by dividing the transmission task into selective forwarding of specific signal blocks.
2Use of energy by moving object
If a relay node forwards only some synchronization signal blocks, then power consumption is reduced, but coverage capability deteriorates
Solution Approach 1:
The relay node compensates for reduced forwarding quantity by operating in another dimension - using beamforming technology to transmit selected synchronization signal blocks in specific directional beams. This dimensional change allows the relay node to maintain coverage area despite forwarding fewer signal blocks, as each transmitted block is directed more precisely to extend coverage.
3Use of energy by moving object
If a relay node forwards synchronization signal blocks selectively, then power consumption is reduced, but system synchronization maintenance becomes difficult
Solution Approach 1:
The relay node implements feedback mechanisms where user equipment reports received synchronization signal block indexes and quality metrics. Based on this feedback, the relay node dynamically adjusts which synchronization signal blocks to forward, ensuring that selected blocks maintain system synchronization while optimizing power consumption. The feedback loop allows the system to adapt to changing conditions while maintaining reliability.
Data Source
AI summary
A method for a first node used for wireless communication and an apparatus are provided. The first node includes: a transceiver, configured to: receive one or more first type synchronization signal blocks, wherein each first type synchronization signal block in the one or more first type synchronization signal blocks includes first information; and an index of each first type synchronization signal block in the one or more first type synchronization signal blocks is one of a plurality of candidate synchronization signal block indexes; and, transmit one or more second type synchronization signal blocks, wherein each second type synchronization signal block in the one or more second type synchronization signal blocks includes the first information.