Base Station Host Unit Bandwidth Reduction via Extension Unit Selection

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Solution Overview

Problem

Conventional base station systems require excessive bandwidth for front-haul transmission between the host unit and extension units due to the need for the host unit to receive and process data from all remote units, leading to increased processing demands and costs.

Innovation Solution

The method involves determining a target extension unit based on uplink signal quality from user equipment, instructing it to send uplink data to the host unit, and reducing the number of remote units connected to each extension unit, thereby reducing the amount of uplink data received by the host unit and processing requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the host unit receives and processes data from all remote units, then complete data coverage is achieved, but the front-haul bandwidth requirement increases excessively

Engineering Contradiction:
Improvedata coverageVSAvoidfront-haul bandwidth
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent segments the base station system into host units, extension units, and remote units. Each extension unit is connected to specific remote units, creating a hierarchical structure. The host unit only needs to communicate with extension units rather than all remote units directly, dividing the data transmission path and reducing front-haul bandwidth requirements while maintaining complete data coverage through the segmented architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Extension units serve as intermediaries between remote units and host units. The extension unit receives data from connected remote units and forwards it to the host unit, acting as a mediator that reduces the direct communication burden on the host unit. This intermediary structure allows the host unit to achieve complete data coverage without directly handling all remote unit data, thereby reducing front-haul bandwidth requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the host unit processes data from all remote units, then comprehensive data processing is achieved, but processing demands and costs increase

Engineering Contradiction:
Improvedata processing completenessVSAvoidprocessing capability requirement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments processing responsibilities across different units. Extension units handle initial data reception and preprocessing from remote units, while host units focus on higher-level processing. This segmentation of processing functions reduces the processing burden on individual host units while maintaining comprehensive data processing through the distributed architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Extension units act as intermediaries that perform preliminary processing of data before it reaches the host unit. This intermediary processing reduces the complexity of processing required at the host unit level, as data has already been partially processed and filtered by the extension unit, while still achieving comprehensive processing through the multi-stage approach.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10939451B2Data transmission method, host unit, extension unit, and base station system
Publication Date: 2021.03.02 COMBA TELECOM SYST CHINA LTD
  • US10939451B2 patent drawing
  • US10939451B2 patent drawing
  • US10939451B2 patent drawing

AI summary

The present application relates to a data transmission method, a host unit, an extension unit, a base station system, and a readable storage medium. The method is applied to a base station system, the base station system includes: a host unit, a plurality of extension units, and a plurality of remote units; the host unit is communicatively connected to the extension units, and each of the extension units is communicatively connected to at least one of the remote units, which includes: the host unit determines a target extension unit corresponding to the user equipment from the extension units according to uplink signal respectively received from the extension units; the uplink signal sent by each extension unit is used to indicate a quality state of signaling between the remote unit connected to the extension unit and the user equipment; sends instruction information to the target extension unit; the instruction information is used to instruct the target extension unit to send uplink data of the user equipment received from the remote unit to the host unit; and receives the uplink data sent by the target extension unit. Using this method can reduce the requirement for the front-haul bandwidth.