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Method for controlling c-ran

A wireless access and network control technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as network traffic occupation, achieve precise packet delivery, and reduce packet traffic

Active Publication Date: 2019-06-11
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing centralized wireless access network, when the baseband processing unit BBU needs to transmit a packet to the user terminal device UE, the baseband processing unit BBU transmits the packet to all the remote radio heads RRH01-RRH20, thus causing the baseband The network traffic between the frequency processing unit BBU and the remote radio heads RRH01-RRH20 is occupied by a large number of packets

Method used

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  • Method for controlling c-ran
  • Method for controlling c-ran
  • Method for controlling c-ran

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Embodiment Construction

[0033] The detailed features and advantages of the present disclosure are described in detail below in the embodiments, the content of which is sufficient for any person familiar with the related art to understand the technical content of the present disclosure and implement it accordingly, and according to the contents, claims and drawings disclosed in this specification , anyone familiar with the related art can easily understand the related objects and advantages of the present disclosure. The following examples further illustrate the viewpoints of the present disclosure in detail, but do not limit the scope of the present disclosure in any way.

[0034] Please refer to figure 2 , which is used to illustrate an operation process of the centralized wireless access network. for reference figure 2 , please also refer to figure 1 . In order to facilitate the user terminal device UE to register with the baseband processing unit BBU to join the network controlled by the bas...

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Abstract

A method for controlling C-RAN applicable for a C-RAN having a plurality of remote radio heads (RRH) and a baseband unit (BBU) includes the following steps: collecting a first uplink signal corresponding to a first user end device, determining a first estimated region based on a communication range of part of RRH's receiving the first uplink signal, setting N estimated coordinates in the first estimated region wherein N is larger than one, giving N moving directions to the N estimated coordinates, modifying the N estimated coordinates based on a maximum displacement and the N moving directions, and selecting at least one RRH to send a type-3 downlink packet to the first user end device based on the N modified estimated coordinates.

Description

technical field [0001] The present disclosure relates to a control method of a centralized wireless access network, in particular to a control method of a handover-free centralized wireless access network. Background technique [0002] Centralized radio access network (C-RAN), or cloud RAN, is a network of high-density base stations connected to a large number of distributed remote radio heads (RRH) network of devices. C-RAN uses virtualization technology and software-defined network architecture to concentrate baseband resources on wired networks. This technology brings significant changes to baseband card architecture and design. The connection and calculation functions of baseband cards and radio cards are also changed accordingly, and resources are effectively shared to achieve load balancing and network fault-tolerant transfer functions. C-RAN simplifies the backhaul network (back haul), but also increases the complexity of the interconnection between the base statio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02
CPCH04W74/004H04W88/085H04W74/002H04W72/23H04W72/51H04W72/52
Inventor 黄任锋
Owner IND TECH RES INST