Beam-Specific Resource Allocation for Contention-Based Multiple Access
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Solution Overview
Problem
Current wireless communication systems face challenges in managing contention based multiple access in next-generation radio access technologies, particularly in massive machine-type communication scenarios, where high connectivity and low latency are required, leading to increased signaling overhead and signal collision probabilities.
Innovation Solution
A method and apparatus for a base station to perform contention-based multiple access by receiving information on the best beam ID from user equipment, allocating resources proportionally based on the number of best beam IDs, and transmitting this information, using a semi-persistent allocation scheme through TDM, RRC signaling, or physical layer signaling, to reduce signaling overhead and signal collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If contention based multiple access is performed in massive MTC scenarios, then connectivity capacity is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the contention-based MA resources into beam-specific resources. Instead of using a single common resource for all UEs, the system divides resources according to different beams, allowing UEs to select resources corresponding to their best beam. This segmentation reduces the probability of collisions and signaling overhead while maintaining high connectivity capacity in massive MTC scenarios.
2Quantity of substance
If contention based multiple access is performed in massive MTC scenarios, then connectivity capacity is improved, but signal collision probability increases
Solution Approach 1:
The patent segments the contention-based MA resources into beam-specific resources. Instead of using a single common resource for all UEs, the system divides resources according to different beams, allowing UEs to select resources corresponding to their best beam. This segmentation reduces the probability of collisions and signaling overhead while maintaining high connectivity capacity in massive MTC scenarios.
3Productivity
If beam-specific resource allocation is performed based on best beam ID, then resource allocation efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by having UEs report their best beam ID to the base station before resource allocation. The base station uses this pre-reported information to determine appropriate beam-specific resources for each UE. This preliminary reporting mechanism simplifies the allocation process and reduces system complexity compared to dynamic beam determination during resource selection.
Data Source
AI summary
A method of performing contention based multiple access (MA) by a base station in a wireless communication system, includes receiving information regarding a best beam ID (identifier) from each user equipment (UE), allocating a resource for contention based multiple access per beam based on a number of best beam ID per beam obtained from the information regarding the best beam ID received from the each UE, and transmitting information regarding the resource for the contention based multiple access allocated per beam, to the each UE. In this case, an amount of the resource allocated for the contention based multiple access per beam is in proportion to the number of best beam ID per beam.