Variable-Length Resource Allocation for 5G NR Bandwidth Parsing

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Solution Overview

Problem

Wireless communication networks face interference issues due to increased demand for mobile broadband access, leading to degraded performance on both downlink and uplink transmissions.

Innovation Solution

Implementing enhanced frequency domain resource allocation using variable length bitmaps to optimize transmission bandwidth based on received resource allocation information, enabling efficient communication with second network nodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed length bitmap is used for frequency domain resource allocation, then parsing is simple, but transmission bandwidth cannot be dynamically optimized

Engineering Contradiction:

Improvetransmission bandwidth optimizationVSAvoidresource allocation parsing complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by transitioning from a fixed-length bitmap to a variable-length bitmap for frequency domain resource allocation. The bitmap length is dynamically adjusted based on the transmission bandwidth, allowing the system to adapt to different bandwidth conditions while optimizing resource allocation efficiency.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of bitmap length from fixed to variable. By making the bitmap length dependent on the transmission bandwidth, the system can efficiently represent different resource allocation scenarios without wasting bits on unnecessary allocations, thus optimizing the balance between simplicity and adaptability.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If variable length bitmap is used for frequency domain resource allocation, then transmission bandwidth can be optimized, but parsing complexity increases

Engineering Contradiction:

Improveresource allocation efficiencyVSAvoidbitmap parsing difficulty

Core Design Contradiction:

ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent incorporates feedback mechanisms where the receiver obtains information about the transmission bandwidth and uses this feedback to correctly parse the variable-length bitmap. This ensures that both transmitter and receiver are synchronized on the bitmap interpretation, resolving the parsing difficulty while maintaining allocation efficiency.

Inventive Principle:

Principle #23Feedback

3Area of stationary object

If more bits are allocated for resource allocation information, then transmission bandwidth coverage increases, but overhead increases

Engineering Contradiction:

Improvetransmission bandwidth coverageVSAvoidoverhead energy consumption

Core Design Contradiction:

Area of stationary objectVSLoss of energy

Solution Approach 1:

The patent applies partial action by allocating only the necessary number of bits for resource allocation based on the actual transmission bandwidth requirements. Instead of always using a fixed large bitmap, the system uses the minimum required bits, thereby avoiding unnecessary overhead while ensuring sufficient bandwidth coverage for all operational scenarios.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12603724B2Adaptable resource allocation length

Publication Date: 2026.04.14 QUALCOMM INC

AI summary

This disclosure provides systems, methods, and devices for wireless communication that support enhanced frequency domain resource allocation. In a first aspect, an apparatus includes at least one processor and a memory coupled to the at least one processor. The at least one processor is configured to receive resource allocation information including a quantity of bits that corresponds to a transmission bandwidth for a transmission; and communicate, based on the quantity of bits, with a second network node using the transmission bandwidth for the transmission. Other aspects and features are also claimed and described.