Packet Padding Threshold Signaling for RU and Stream Overhead

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Solution Overview

Problem

Providing nominal packet padding values for different combinations of space-time streams and resource unit sizes in an exhaustive manner results in significant overheads, especially as the number of supported streams and resource unit sizes increase.

Innovation Solution

A method to indicate nominal packet padding values by using a physical layer packet extension thresholds field that includes an RU index bitmask subfield and NSS subfield, allowing for flexible indication of padding values without traversing all possible combinations, thereby reducing overheads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If nominal packet padding values are provided in an exhaustive or traversal manner for each NSTS, RU, and modulation threshold combination, then all possible combinations are covered, but overheads become large

Engineering Contradiction:

Improvecoverage of padding valuesVSAvoidoverheads

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the exhaustive set of padding values into multiple codebook sets, where each codebook set corresponds to specific NSTS and RU combinations. This segmentation allows the system to provide comprehensive coverage while transmitting only the relevant codebook set for the current configuration, thereby reducing overheads.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic selection of codebook sets based on current NSTS and RU configurations. Instead of transmitting all possible padding values statically, the system dynamically determines which codebook set to use and transmits only that set, adapting to changing communication conditions to minimize overhead.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If the number of supported streams and resource unit sizes increases, then system capability improves, but overheads for indicating padding values increase significantly

Engineering Contradiction:

Improvesupported configurationsVSAvoidoverheads

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent organizes padding values into multiple codebook sets segmented by NSTS and RU combinations. When the number of supported streams and resource unit sizes increases, the system segments the larger set into more codebook sets, each manageable in size, and transmits only the relevant subset, preventing overhead from scaling linearly with system capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transmits only the partial set of padding values relevant to the current configuration rather than the complete set. This partial action approach ensures that even as system capability expands to support more configurations, the transmitted overhead remains proportional to the active configuration rather than the total possible configurations.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS12598022B2Nominal packet padding value indication method, determining method, and communication apparatus

Publication Date: 2026.04.07 HUAWEI TECH CO LTD

AI summary

A feeding network, an antenna, an antenna system, a base station, and a beam forming method. The antenna includes an array antenna, a feeding network, and an antenna port. The array antenna includes a plurality of radiating elements. Each output of each feeding network is connected to at least one radiating element in the array antenna. Each input of each feeding network is connected to the antenna port. Each feeding network has one input and two outputs, and one of the two outputs includes a phase shifter. The phase shifter has a first operating state to increase the coverage space of beam forming.