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Network as a Service (NaaS) PlayBook
1. Capacity Planning Introduction
Capacity Planning (CP) is a system that contributes to
over-watch the network sources of the NaaS operator, predicting the network
behavior based totally on its maximum essential metrics and agenda moves to
feature ability while vital. A well-prepared plan will decrease the danger of
network congestions, bottlenecks, and outages. Additionally, it’ll beautify the
community usage by using decreasing the idle resources because of over
dimensioning.
The forecast evaluation of a network is quite complex, the
easiest manner to conquer this complexity is dividing the network into segments
including radio get right of entry to community (RAN), delivery and mobile
center. Even similarly, a better segmentation when acting CP is to subdivide
the ones regions via their device and the capacity signs or capacity managed
gadgets (CMOs).
The Capacity Planning module offers instruction on the
general obligations required in a cell community to deal with its inherent boom
and development. These sports cross from the identification of the CMOs to the
definition of a concrete plan for carrying out the desired ability augments
This module presents tips to identify the most relevant CMOs
from RAN, transport and mobile core. For every CMO, a list of community metrics
is derived primarily based on its effect at the CMO and the network. These
community metrics display the usage of the resources and can constitute a
bottleneck whilst sources are completely utilized. To keep away from capability
bottlenecks, an growth in the potential should be deliberate and implemented
before this occurs.
Since RAN, transport and cell middle vary from one to
another, distinctive CMOs, thresholds, metrics and planning must be uniquely
defined. For this motive, this module is divided into 4 sections: (1)
Fundamentals, CP in (2) RAN, (three) delivery and (four) cellular center.
After going through this module, the NaaS operator will be
able to pick out the CMOs in their community, carry out a forecast analysis of
the applicable metrics and plan the augments earlier than the metrics cross
their respective thresholds.
1.1 Module Objectives
This module will allow NaaS operators to estimate the
community conduct and plan potential augments accordingly before potential
outages arise. The specific targets of this module are to:
1.2 Module Background
The Module Framework in Figure 1 pronounces the structure,
interactions, and dependencies among different NaaS operator areas.
Strategic Plan & Scope and High-level Network
Architecture drive the strategic selections to imminent stages. Once the
community is in operations, the Field Maintenance and Post-Launch Engineering
activities are required to ensure right functioning of the community.
The Capacity Planning module is protected within the Post-Launch
Engineering stream and has a direct relation with the Field Maintenance and the
Operations & Maintenance Streams. The Module Background in Figure 1
describes the shape, interactions and dependencies among specific NaaS operator
areas.
Figure 1 – Post-Launch Engineering Framework
Figure 2 presents the CP purposeful view, where the
principle useful components are exhibited.
Figure 2 – CP Functional View
2 CP Fundamentals
This segment presents an outline of the baseline ideas of
the CP procedure and its relevance for NaaS operators. Furthermore, an exam of
every of the CP manner’ steps is furnished to guide NaaS operators through
their implementation.
2.1 CP Imperative
CP is the method of planning a community primarily based on
utilization, bandwidth, and other network capacity constraints. Furthermore,
it’s a kind of control manner that assists community directors in making plans
for community infrastructure in keeping with current and destiny operations.
CP includes calculating the potential required to support
the expected network growth and finding methods of creating that potential to
be had via the implementation of potential augments. Furthermore, CP guarantees
that the network capability is applied in the maximum price-powerful and well
timed manner.
The courting between CP and Performance Management relies on
their particular scope. Performance Management makes a speciality of optimizing
the existing community factors to enhance the performance. In evaluation, CP
determines the destiny network requirements using the modern-day performance as
a baseline.
The primary troubles addressed through the CP system are
examined as follows.
Improve Operational Efficiency
Figure 3 illustrates the CP idea for NaaS operators. It
continues a CP manner for each of the network segments (i.E., RAN, Tx, core) as
every of them has specific requirements; however, interrelationships many of
the different approaches are present. Each of those procedures is described in
a separate segment of this module.
Figure three – CP Concept inside the NaaS surroundings.
A deep exam of the fundamental aspects of CP may be found
inside the Primer on Capacity Planning Fundamentals document.
2.2 CP Baseline Concepts
The aim of this phase is to provide the important thing
principles related to CP to be able to be used alongside the relaxation of this
module.
A CMO is a community useful resource this is capability
touchy and is prone to present capacity outages. The CP system continues music
of 3 important measurements for each CMO:
A ability augment is an expansion on any of the CMOs that
augments its general ability. There are especially two approaches to augment
the CMOs:
Capacity Augment Cycle Time
The potential augment cycle time is the total quantity of
time required to put in force a specific ability augment. Among the activities
that is probably finished to implement a ability increase are
2.3 CP Framework
As previously mentioned, CP has a right away dating with the
NaaS operator network, inclusive of all of the network segments (RAN, Tx,
Core). Figure 4 illustrates the CP framework.
As shown in Figure 4, there are two phases within the CP
procedure:
The framework illustrated in Figure 4 is implemented for
every community phase (i.E., RAN, Tx, core). To facilitate expertise of the
specifics, the relaxation of this section is focused on the general technique,
for you to be used because the baseline for the particular methods on each
community section in Sections three to five.
The following subsections describe the principle
interactions between the CP system and the NaaS Operator Network.
Initial Network Information Collection
The Capacity Framework Setup segment requires positive
initial data regarding the community status. Table 1 gives the enter
information and their respective candidate assets. Furthermore, the effect of
the inputs on the CP procedure is tested.
Table 1 – Initial Network Information Analysis
Monitoring and Testing sports focus on measuring and
reporting all the utilization-associated aspects. The NMS plays the potential
and overall performance monitoring sports. It’s recommended that computerized
mechanisms carry out all monitoring sports.
The NMS makes use of inputs from the CP system to configure
the Events & Alarms according with safety margins for the network metrics.
For in addition information at the monitoring strategies and how to put in
force them, please refer to the Network Monitoring Architecture module.
Capacity Augment Implementation
Once the capability augments required within the community
to keep away from ability outages are identified, they want to be implemented.
Any ability increase to be carried out within the network should be evaluated
in terms of its impact on modern provider operation. Moreover, the
implementation of the ability augments ought to keep in mind its associated
cycle time to effectively agenda it.