Intent-driven radio access networking method and system

Patent metadata

Field	Value
Publication number	US-10939309-B2
Application number	US-201916697844-A
Country	US
Kind code	B2
Filing date	Nov 27, 2019
Priority date	Nov 29, 2018
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

The present application discloses an intent-driven radio access networking method, including: determining an intent, and performing a slice setting for a slice according to a type of the intent and network performance requirements indicated by the intent; determining an instantiation priority for each slice setting; performing performance evaluation for each existing slice within a network range indicated by the intent, and determining global configuration of each existing slice; after a new slice is added to the current network, configuring a networking mode and network multimode resources for the new slice according to the instantiation priority of the slice setting corresponding to the new slice.

First claim

What is claimed is:

1. An intent-driven radio access networking method, comprising:
determining an intent, and performing a slice setting for a slice according to a type of the intent and network performance requirements indicated by the intent, wherein the slice setting comprises a scenario corresponding to the slice and threshold requirements of each network performance indicator indicated by the slice;
determining an instantiation priority for each slice setting;
performing performance evaluation for each existing slice within a network range indicated by the intent, and determining whether each existing slice meets performance requirements of each slice setting; when an existing slice meets performance requirements of any slice setting, reserving the existing slice; when an existing slice does not meet performance requirements of each slice setting and a difference between performance of the existing slice and performance of each slice setting exceeds a preset range, deleting the existing slice, and releasing network resources related to the existing slice; when an existing slice does not meet the performance requirements of each slice setting but a difference between performance of the existing slice and performance of any slice setting is within the preset range, reserving and optimizing the existing slice; when each existing slice does not meet the performance requirements of any slice setting and a difference between performance of the existing slice and the performance of each slice setting exceeds the preset range, adding a new slice to a current network according to an instantiation priority of slice setting corresponding to the new slice;
after the new slice is added to the current network, configuring a networking mode and network multimode resources for the new slice according to the instantiation priority of slice setting corresponding to the new slice.

2. The method of claim 1 , after configuring the network multimode resources, further comprising:
performing performance evaluation for any slice in the current network periodically, and comparing a performance evaluation result with predefined performance of slice setting corresponding to the slice; when a difference between performance of the slice and the predefined performance is greater than a first threshold and less than or equal to a second threshold, performing intra-slice resource optimization; when the difference between the performance of the slice and the predefined performance is greater than the second threshold, performing inter-slice resource optimization for all slices in the current network, wherein the first threshold is smaller than the second threshold.

3. The method of claim 1 , wherein the performing performance evaluation for each existing slice comprises:
obtaining wireless transmission data and terminal measurement data of the current network from a Radio Access Network (RAN); extracting a spatial feature and a temporal feature of the wireless transmission data and the terminal measurement data respectively by using a Convolutional Neural Network (CNN) and a Recurrent Neural Network (RNN), and deriving a network performance status corresponding to the wireless transmission data and the terminal measurement data of the current network; and
wherein the determining whether each existing slice meets performance requirements of each slice setting comprises:
determining the performance of the existing slice according to the performance evaluation results and determining whether the existing slice meets the threshold requirements of each network indicator indicated by the existing slice; when the existing slice meets the threshold requirements of each network indicator, determining that the existing slice meets the performance requirements of the slice setting corresponding to the existing slice; otherwise, determining that the existing slice does not meet the performance requirements of the slice setting corresponding to the existing slice.

4. The method of claim 1 , wherein the configuring network multimode resources for the new slice comprises:
allocating, by a Radio Network Controller (RNC), network resources to the new slice according to the instantiation priority of the slice setting corresponding to the new slice, and issuing a global resource allocation scheme to a distributed resource manager corresponding to the new slice through control signaling, wherein the distributed resource manager is located in a designated node of the new slice; generating, by the distributed resource manager, a resource allocation scheme used for an access node and a terminal within the new slice according to total resources available for the new slice that are determined by a radio resource manager, and historical access information, service type and actual terminal access information of the new slice, and reporting the resource allocation scheme to the RNC; allocating, by the RNC, network resources globally according to a resource allocation scheme of each new slice reported by the distributed resource manager, and triggering an intra-slice resource configuration scheme;
for a wide-area seamless coverage slice, the distributed resource manager is deployed in a device which is externally connected to a High-Power Node (HPN) and used for resource management, and mainly configures base station transmission power and a terminal handover parameter;
for a hot-spot high-capacity slice, the distributed resource manager is deployed in a BaseBand Unit Pool (BBU Pool) with strong processing function, and mainly configures a terminal transmission mode, bandwidth resources and cache placement;
for a low-power large-connection slice, the distributed resource manager is deployed in a node with strong fog calculation function, and mainly configures a clustering networking mode of a terminal, transmission power of each node and a processing capability of a cluster head node; and
for a low-delay high-reliability slice, the distributed resource manager is deployed in a node with strong fog calculation function, mobility lower than a preset mobility threshold and a coverage larger than a preset range threshold, mainly configures local cached contents and base station transmission power, and selects a coding mode with a bit error rate lower than a preset bit error rate threshold and a retransmission mechanism with an efficiency higher than a preset efficiency threshold.

5. The method of claim 4 , wherein, for different slice settings corresponding to the same type of intents, the RNC determines a transmission interference and a spatial distance between new slices corresponding to the slice settings, and allocates the network resources to the new slices by a hard or soft isolation mode according to the transmission interference, the spatial distance, and types, quantity and usage of all resources in the current network; the hard isolation mode refers to that network resources occupied by all slices are in an orthogonal state, and the soft isolation mode refers to that the network resources occupied by the all slices are in an orthogonal or multiplexing state;
for the different slice settings corresponding to the same type of intents, the RNC allocates power resources to the new slices corresponding to the slice settings by using an open loop power control method and constraints maximum transmission power of access nodes and terminals in each new slice to control an interference in the new slice and an interference between the new slices are both within an allowable range; and
for the different slice settings corresponding to the same type of intents, when allocating cache resources and computing resources to the new slices corresponding to the slice settings, the RNC sets a highest resource allocation priority for a slice corresponding to a low-delay high-reliability sc

Assignees

• Univ Beijing Posts & Telecomm
• Belting Univ Of Posts And Telecommunications

Inventors

• Peng Mugen
• Zhou Yangcheng
• Yan Shi

Classifications

• H04W72/53

  based on regulatory allocation policies · CPC title

• H04W72/56

  based on priority criteria · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04W36/00838

  Resource reservation for handover · CPC title

• H04W36/18

  for allowing seamless reselection, e.g. soft reselection · CPC title