Unlock instant, AI-driven research and patent intelligence for your innovation.

A low-latency device and method for 5G fronthaul

A low-latency, 5G technology, applied in the field of low-latency devices for 5G fronthaul, can solve problems such as increasing the overall delay of the 5G fronthaul network, and achieve the effects of avoiding occupation, reducing complexity and cost, and reducing delay

Active Publication Date: 2021-08-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the round-trip time (Round-Trip Time, RTT) brought about by the reporting and issuing of Report and Grant commands produces a large delay, especially in long-distance PON networks, which may introduce millisecond-level delays. Propagation delay, which greatly increases the overall delay in the 5G fronthaul network

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A low-latency device and method for 5G fronthaul
  • A low-latency device and method for 5G fronthaul
  • A low-latency device and method for 5G fronthaul

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] figure 1 It is a structure diagram of a specific embodiment of a 5G fronthaul low-latency device of the present invention.

[0031] In this example, if figure 1 As shown, a low-latency device for 5G fronthaul in the present invention mainly includes: a central AAU, each sub-AAU, each ONU, and an OLT.

[0032] In a long-distance time-division multiplexing passive optical network, there is a 100km single-mode fiber between the ONU end and the OLT end, and the DU resource pool is deployed at the OLT end. Splitter and ONU respectively 1 、ONU 2 and ONU 3 connection, AAU1-7 Deployed on the ONU side, AAU 1 、AAU 4 belongs to ONU 1 , AAU 2 、AAU 5 and AAU 6 belongs to ONU 2 , AAU 3 、AAU 7 belongs to ONU 3 .

[0033] In the 5G fronthaul network with mixed access of optical fiber and wireless, AAU 1-3 Deployed at the corresponding ONU as a first-level AAU and directly connected to the ONU, the AAU 4-7 As a secondary AAU, it is linked with the corresponding primary ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-delay device and method for 5G front transmission. First, the uplink transmission requests of each sub-AAU are collected to a central AAU located in the center of the network topology, and the central AAU is based on the uplink transmission requirements of each sub-AAU and its corresponding The ONU obtains the upstream transmission requirements of each ONU, and performs local dynamic bandwidth allocation, and then distributes the Grant information generated by the bandwidth allocation result to each ONU, and each ONU sends upstream data according to the bandwidth allocation result to avoid conflicts.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and more specifically, relates to a low-delay device and method for 5G fronthaul. Background technique [0002] In 5G communications, the RAN network will evolve from the BBU and RRU two-level architecture of 4G and LTE networks to the three-level architecture of CU, DU, and AAU. The non-real-time processing part in the original BBU was separated and redefined as a centralized unit (CentralizedUnit, CU). The underlying physical layer function in the original BBU was integrated with the original RRU into an active antenna processing unit (Active AntennaUnit, AAU), and The remaining functions of the original BBU are redefined as Distribute Unit (DU), which is responsible for processing high-level physical layer protocols and real-time services. Therefore, the 5G bearer network will be divided into the fronthaul network (Fronthaul) working between AAU and DU, the middlehaul netw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04B10/2575H04Q11/00
CPCH04B10/25753H04L69/22H04Q11/0062H04Q2011/0086
Inventor 张崇富钟晓宇黄欢邱昆
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com