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Method and device for resource scheduling and control based on C-RAN

A technology of resource scheduling and control method, which is applied in the field of MAC layer resource scheduling and control based on analog optical radio frequency C-RAN, can solve the problems of low utilization rate of BBU pool resources, less research, unbalanced load, etc., and achieve the solution Tidal effect, reducing delay, and reducing the effect of signaling interaction process

Active Publication Date: 2017-03-22
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0008] However, most of the current analog fronthaul solutions in this field focus on the physical layer, and there are relatively few studies on the MAC (Media Access Control) layer.
The existing MAC layer has problems such as low utilization of BBU pool resources and unbalanced load.

Method used

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  • Method and device for resource scheduling and control based on C-RAN
  • Method and device for resource scheduling and control based on C-RAN
  • Method and device for resource scheduling and control based on C-RAN

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] Figure 4 It is a schematic flowchart of an embodiment of the resource scheduling and control method based on C-RAN in the present invention, see Figure 4 , this embodiment discloses a resource scheduling and control method based on C-RAN, including:

[0031]S1. The baseband unit BBU pool activates the remote radio frequency unit RRU by periodically sending sh...

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Abstract

The invention discloses a method and a device for resource scheduling and control based on C-RAN. The method comprises steps that a BBU (Base Band Unit) pool periodically sends a short pulse sequence in a wavelength dedicated control channel for activating an RRU (Remote Radio Unit); after the BBU pool activates the RRU, synchronization information and system information are broadcasted to an air interface, so that a user terminal is enabled to obtain the synchronization information and the system information, thereby enabling the user terminal and a district corresponding to the BBU to achieve downlink synchronization; further, the user terminal is enabled to establish connection and achieve uplink synchronization with the district through the random access process after achieving downlink synchronization with the district; after the user terminal achieves downlink synchronization and uplink synchronization with the district, the BBU pool allocates wireless bandwidth resources to the user terminal according to a buffer state report (BSR) sent by the user terminal in a scheduling period; and the BBU pool allocates optical wavelength bandwidth resources to the RRU according to the sum of all bandwidth requests of the user terminals corresponding to the RRU. The device is used for achieving the method.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a MAC layer resource scheduling and control method and device based on analog optical radio frequency C-RAN. Background technique [0002] With the development of next-generation wireless networks, 5G is shifting towards larger capacity, higher speed and ultra-dense deployment, and as a converged network, 5G needs to provide support for 2G / 3G / LTE and WIFI to provide a seamless coverage structure. Dense network deployment poses great challenges to cost and energy consumption and flexible network management and control. C-RAN is an effective solution to this (refer to China Mobile's white paper). C-RAN is a wireless access network solution based on Centralized Processing, Collaborative Radio and Real-time Cloud Infrastructure. Between the BBU POOL (BBU, Base Band Unit, baseband unit) and the RRU (Remote Radio Unit, remote radio unit), WDM (Wavelength Division Multipl...

Claims

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Application Information

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IPC IPC(8): H04W28/16H04W72/04H04B10/2575H04W74/00
CPCH04B10/25754H04W28/16H04W74/006H04W74/004H04W72/21
Inventor 张民宋闯段婷婷王丹石
Owner BEIJING UNIV OF POSTS & TELECOMM
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