Beam-Index Multiplexer for Scalable Radio Data Distribution
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Solution Overview
Problem
Current wireless communication systems face challenges in scaling efficiently and cost-effectively as the number of radio units increases, particularly in managing user mobility and radio resources, due to the need for separate hardware resources and interfaces for each radio unit.
Innovation Solution
The method involves partitioning beam indices into disjoint subsets, allowing each radio unit to be mapped to a single subset, enabling data transport and scheduling across multiple radio units as if they were a single unit, using beam-index based multiplexers to manage data flow efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate hardware resources and interfaces are allocated for each radio unit, then reliability and ease of operation are improved, but device complexity and cost increase
Solution Approach 1:
The patent merges multiple radio units into a single logical radio unit by implementing a common data transport interface between the baseband unit and multiple radio units. The beam-index based multiplexer consolidates data streams from multiple radio units into a single interface, eliminating the need for separate hardware resources for each radio unit while maintaining system reliability through the virtualization framework.
Solution Approach 2:
The patent creates a universal data transport interface that serves multiple radio units simultaneously. The beam-index based multiplexer acts as a universal component that can route data to any radio unit based on beam index, allowing a single interface to perform the function of multiple dedicated interfaces, thereby reducing hardware complexity while maintaining ease of operation.
2Area of stationary object
If the number of radio units is increased to cover service areas, then coverage area is improved, but data transport cost and device complexity increase
Solution Approach 1:
The patent combines data transport to multiple radio units into a single consolidated data stream through the beam-index based multiplexer. By merging separate data transport paths into one common interface, the system reduces the overall data transport cost while maintaining expanded service area coverage through multiple radio units.
Solution Approach 2:
The common data transport interface serves as a universal pathway that can deliver data to any radio unit in the network. This multi-functional interface replaces multiple dedicated transport paths, reducing energy consumption and cost while enabling the system to support a larger number of radio units for expanded coverage.
3Ease of operation
If beam indices are partitioned into disjoint subsets and mapped to radio units, then ease of operation and scheduling efficiency are improved, but device complexity increases
Solution Approach 1:
The patent segments the beam index space into disjoint subsets, with each subset mapped to a specific radio unit. This segmentation enables the baseband unit to efficiently schedule and distribute data by simply identifying which beam index subset the data belongs to, greatly simplifying the scheduling operation despite the underlying complexity of managing multiple radio units.
Solution Approach 2:
The beam-index based multiplexer acts as an intermediary component that handles the complexity of data distribution to multiple radio units. By introducing this intermediary layer, the baseband unit can operate with simple beam index-based addressing, while the multiplexer manages the complex routing logic, thereby improving ease of operation without exposing the complexity to the scheduling system.
Data Source
AI summary
The present disclosure relates to a method for transporting and distributing data (2) between a baseband, BB, unit (3) and two or more radio units (4) comprised in a communications network (1) arranged to cover a service area (6). The method comprises defining (S1) a logical grid of beams matrix, GoB, (5) associated with a carrier frequency band (B0, B1, B2, B3, B4, B5, B6, B7) of the communications network (1), wherein the GoB (5) comprises a set (S) of beam indices (BI), and partitioning (S2) the set (S) of beam indices into disjoint subsets (DS1, DS2, DS3, DS4) of at least one beam index (BI) each. The method further comprises mapping (S3) each of the two or more radio units (4) to one disjoint subset (DS1, DS2, DS3, DS4) such that each disjoint subset (DS1, DS2, DS3, DS4) is associated with a single radio unit (4), and transporting (S5) the data (2) between the BB unit (3) and the two or more radio units (4) and distributing the transported data (2) between the radio units (4) based on the disjoint subsets (DS1, DS2, DS3, DS4) of beam indices (BI).