Methods, systems, and baseband units for improved use of shared fronthaul connections

DE602019070445T2Active Publication Date: 2025-05-21TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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Patent Information

Application Number
DE602019070445
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-12-06
Publication Date
2025-05-21
Estimated Expiration
2039-12-06

AI Technical Summary

Technical Problem

In wireless communication networks, shared fronthaul connections between base station systems often lead to unacceptable queueing and packet losses due to uncoordinated usage, resulting in detrimental radio performance and high capital and operating expenses from over-dimensioning.

Method used

A method and system that obtain fronthaul capacity information and required capacity data to determine time unit transmission restrictions, ensuring fronthaul usage remains below its capacity by coordinating transmission between base station systems, thereby optimizing resource allocation and reducing message exchange.

Benefits of technology

This approach dynamically shares fronthaul resources efficiently, avoiding packet drops and maintaining radio performance while minimizing capital and operating expenses by optimizing fronthaul utilization.

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Abstract

Disclosed is a method performed by a system (160) related to a wireless communication network comprising a plurality of base station systems (101, 102), each base station system comprising a baseband unit, BBU (110, 115) and a radio unit, RU (120, 125) interconnected via a fronthaul connection (130) that is shared between the base station systems. The method comprises obtaining fronthaul capacity information on transmission capacity of the shared fronthaul connection (130), and obtaining information on required capacity for transmission and / or reception of wireless signals by the RU (120, 125) of the respective base station system. The method further comprises determining time unit transmission restrictions for the respective base station system (101, 102) based on the fronthaul capacity information and on the information on required capacity, which time unit transmission restrictions results in fronthaul usage below the transmission capacity of the part of the fronthaul connection, and sending information on the determined time unit transmission restrictions to the BBU (110, 15) of the respective base station system (101, 102).
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