Beam Allocation Method for Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently allocating transmit beams to meet the increasing demand for wireless data traffic, as higher transmission frequencies reduce service coverage area and existing beam allocation methods are not optimized for spectral efficiency.
Innovation Solution
A method and apparatus for beam allocation in wireless communication systems that involve the Base Station (BS) and Mobile Station (MS) exchanging reference signals to determine optimal transmit and receive beam patterns, allowing for flexible beam scheduling and resource allocation using feedback mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If beamforming technique is implemented to expand propagation distance, then transmission distance is improved, but system complexity increases due to multiple antenna arrays and beam management requirements
Solution Approach 1:
The patent changes the parameter of beam allocation from dynamic per-resource allocation to semi-static per-resource-type allocation. This reduces the frequency of beam management operations while maintaining effective transmission distance through appropriate beam selection for each resource type (data, control, reference signals).
Solution Approach 2:
The patent applies partial action by allocating beams at a coarser granularity (per resource type rather than per individual resource). This reduces the number of beam management operations needed while still achieving effective coverage for all transmitted signals.
2Productivity
If multiple beams are allocated for beam diversity and scheduling flexibility, then spectral efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent segments the resource space into distinct resource types (data resources, control resources, reference signal resources) and allocates beams separately for each type. This segmentation enables efficient beam diversity within each category while simplifying the overall allocation process by treating each category independently.
Solution Approach 2:
The patent creates a universal beam allocation framework where a single allocation rule set applies to all resource types. This multi-functional approach allows the system to maintain spectral efficiency through beam diversity while reducing complexity by using consistent allocation principles across different resource categories.
3Adaptability or versatility
If beam allocation information is specifically provided for each resource, then beam scheduling flexibility is improved, but control overhead increases
Solution Approach 1:
The patent provides beam allocation information at a partial level of detail - specifically for each resource type rather than for every individual resource instance. This reduces control overhead significantly while maintaining sufficient scheduling flexibility through the use of beam indices that can be applied to multiple resources of the same type.
Solution Approach 2:
The patent uses beam index copying where a single beam allocation指示 can be applied to multiple resources of the same type. Instead of providing separate beam information for each resource, the system copies the beam index across multiple resources, reducing control overhead while maintaining consistent beam scheduling.
Data Source
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AI summary
A beam allocation method of a Base Station (BS) in a wireless communication system is provided. The method includes transmitting a reference signal to a Mobile Station (MS) using a plurality of downlink transmit (Tx) beams, receiving information of a plurality of candidate downlink Tx beams determined by the MS in response to the received reference signal, selecting at least one downlink Tx beam from the plurality of candidate downlink Tx beams according to a predefined rule, generating control information for burst transmission, comprising the selected at least one downlink Tx beam information, transmitting the control information to the MS using the selected at least one downlink Tx beam, and transmitting a data burst based on Tx beam information included in the control information.