One-Byte Buffer Status Report for Padding Bit Optimization

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Solution Overview

Problem

Existing buffer status reporting techniques in LTE and 5G NR wireless communication systems are inefficient due to the use of two padding bytes for reporting, leading to suboptimal use of network resources.

Innovation Solution

The user equipment determines the number of remaining bits in a MAC PDU and transmits a One-Byte-BSR for the logical channel with the highest priority data, optimizing padding usage and reporting efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If two padding bytes are used for BSR reporting, then the buffer status can be reported completely, but network resources are wasted

Engineering Contradiction:

Improvebuffer status reporting completenessVSAvoidnetwork resource efficiency

Core Design Contradiction:

Measurement precisionVSLoss of energy

Solution Approach 1:

The patent extracts only the necessary portion of padding bits required for BSR reporting. Instead of using fixed two padding bytes, the system calculates the exact number of bits needed based on the buffer status data size and uses only that many bits, removing the excess padding that wastes network resources.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the parameter of padding bit allocation from a fixed value (two bytes) to a dynamic value calculated based on actual buffer status requirements. The system adjusts the number of padding bits used for BSR reporting according to the specific data transmission needs, optimizing resource utilization.

Inventive Principle:

Principle #35Parameter changes

2Loss of information

If padding bits are used for BSR, then buffer status information can be transmitted, but the MAC PDU size efficiency decreases

Engineering Contradiction:

Improvebuffer status information transmissionVSAvoidMAC PDU size efficiency

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The patent applies partial action by using only the necessary portion of padding bits for BSR reporting rather than the full allocated padding space. The system calculates the exact bit requirement and uses only that amount, avoiding the excessive use of padding bits that would reduce MAC PDU efficiency.

Inventive Principle:

Principle #16Partial or excessive action

3Device complexity

If a fixed BSR format is used, then implementation is simple, but adaptability to different padding scenarios is poor

Engineering Contradiction:

ImproveBSR implementation complexityVSAvoidpadding scenario adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamics into the BSR reporting mechanism by making the padding bit allocation adaptive rather than fixed. The system dynamically calculates the required padding bits based on actual buffer status data and transmission conditions, allowing the BSR format to adapt to different scenarios while maintaining manageable complexity through standardized calculation procedures.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11503630B2Processing buffer status reports

Publication Date: 2022.11.15 GOOGLE LLC

AI summary

This document describes processing a buffer status report from a user equipment (UE) by a base station in a radio access network, in which the base station receives a One-Byte-Buffer Status Report for a Logical Channel Group with a highest priority logical channel and data available for transmission by the user equipment, the One-Byte-Buffer Status Report indicating that a number of padding bits in a Media Access Control (MAC) Protocol Data Unit (PDU) is greater than or equal to a size of a subheader of a Short Buffer Status Report (BSR) or greater than or equal to the size of the Short BSR and is also less than the size of the Short BSR plus the subheader of the Short BSR.