Wireless Relay Node Beam Coordination for Conflict-Free Forwarding
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Solution Overview
Problem
The deployment of relay nodes in wireless communication systems faces issues such as beam indication conflicts, increased power consumption, signaling overheads, transfer delays, and reduced beam indication accuracy due to limitations in beam indication signaling, leading to deteriorated system transmission quality.
Innovation Solution
A method and apparatus for a node with relay functions that utilize multiple pieces of beam information and time resource sets to determine the state of a module, allowing for efficient beam indication by using DCI format 5_0 or RRC signaling to resolve conflicts and optimize power consumption, signaling overheads, and transfer delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station performs beam indication to the relay node by indicating a combination of beam information and a time resource set, then the spatial directivity of forwarding is improved, but beam indication conflict occurs causing operation confusion of the relay node
Solution Approach 1:
The patent divides the beam indication into two independent parts: beam information and time resource indication. The beam information indicates which beam the relay node should use, while the time resource indication specifies when the relay node should be active. This segmentation eliminates the conflict that occurs when multiple beam information entries are mapped to the same time resource set, as each time resource now has a unique beam indication.
Solution Approach 2:
The patent introduces a time resource set as an intermediary element that mediates between the beam information and the relay node's operation. By using time resource sets as the mapping key rather than directly mapping beam information to time resources, the system avoids conflicts and provides clear, unambiguous instructions to the relay node about when and which beam to use.
2Adaptability or versatility
If multiple time resource sets include the same time resource with different beam information, then the beam indication coverage is improved, but power consumption of the relay node increases
Solution Approach 1:
The patent segments the beam indication information so that each time resource has a unique beam information entry. This eliminates redundant beam indication entries that would otherwise cause the relay node to consume additional power processing conflicting or redundant instructions. The segmentation maintains comprehensive coverage while reducing processing overhead.
3Adaptability or versatility
If multiple time resource sets include the same time resource with different beam information, then the beam indication flexibility is improved, but signaling overheads increase
Solution Approach 1:
The patent segments the indication signaling into distinct beam information fields and time resource indication fields. This segmentation allows for more efficient packing of information, reducing the total number of bits required for signaling while maintaining the flexibility to indicate different beams for different time resources. The segmented structure avoids redundant signaling and reduces overhead.
4Adaptability or versatility
If multiple time resource sets include the same time resource with different beam information, then the beam indication capability is improved, but transfer delay increases
Solution Approach 1:
The patent segments the beam indication process into independent beam information retrieval and time resource determination steps. This segmentation allows for parallel processing and reduces the sequential delay associated with resolving conflicts. The relay node can independently determine the beam information for each time resource without waiting for conflict resolution, thereby reducing transfer delay while maintaining capability.
5Adaptability or versatility
If multiple time resource sets include the same time resource with different beam information, then the network coverage capability is improved, but beam indication accuracy decreases
Solution Approach 1:
The patent segments the beam indication into unique time resource-specific entries, ensuring that each time resource has exactly one associated beam information entry. This segmentation eliminates ambiguity and ensures high accuracy in beam indication, as the relay node receives clear, conflict-free instructions about which beam to use for each time resource. The segmented structure maintains comprehensive network coverage capability while achieving precise beam indication.
Data Source
AI summary
A method for a node used for wireless communication and an apparatus are provided. A first node receives a plurality of pieces of beam information and a plurality of time resource sets. The plurality of time resource sets are associated with the plurality of pieces of beam information respectively. At least two of the plurality of time resource sets each comprises a first time resource. At least two pieces of beam information respectively associated with the at least two time resource sets are different. At least one of the at least two pieces of beam information is used to determine that a NCR-Fwd is in a first state on a first time resource, the first state is one of a plurality of candidate states including at least two of a stopping state, applying one or more first-type beams for transmissions, or applying one or more first-type beams for receptions.