Update pnf and 5g use case doc

Signed-off-by: Yang Xu <yang.xu@futurewei.com>
Issue-ID: INT-1104
Change-Id: I9fa7e1babd7b7cdbdfbec71600ebed6c81ba450b

3 files changed, 7 insertions, 11 deletions

diff --git a/docs/docs_5g_pnf_pnp.rst b/docs/docs_5g_pnf_pnp.rst
index 534d57077..e658c222c 100644
--- a/docs/docs_5g_pnf_pnp.rst
+++ b/docs/docs_5g_pnf_pnp.rst
@@ -14,13 +14,7 @@ Source files
 Description
 ~~~~~~~~~~~
 
-The PNF PnP flow is a method, which allows to register within ONAP/AAI a PNF resource instance.
-This PNF resource instance is correlated with an existing service instance.
-PNF Plug and Play is used to register a PNF when it comes on-line.
-This use case is intended to be applicable to a variety of PNFs such as routers and 5G base stations.
-The steps and descriptions have been drafted to be as general as possible and to be applicable
-to a relatively wide variety of PNFs. However, the use case was originally developed with a consideration
-for 5G PNF Distributed Units (DU).
+The PNF Plug and Play is a procedure that is executed between a PNF and ONAP. In the process of PNF registration, ONAP establishes a PNF resource instance for the PNF with a corresponding A&AI entry. The PNF registration uses a VES exchange with the PNF Registration handler within ONAP to complete the registration. Allowing the PNF resource instance to be associated with an existing service instance. This use case is intended to be applicable to a variety of PNFs such as routers and 5G base stations. The steps and descriptions have been drafted to be as general as possible and to be applicable to a relatively wide variety of PNFs. However, the use case was originally developed with a consideration for 5G PNF Distributed Units (DU).
 
 **Useful Links**
 
diff --git a/docs/docs_5g_rtpm.rst b/docs/docs_5g_rtpm.rst
index e1d861b7a..ecc3dcee3 100644
--- a/docs/docs_5g_rtpm.rst
+++ b/docs/docs_5g_rtpm.rst
@@ -14,6 +14,8 @@ Source files
 Description
 ~~~~~~~~~~~
 
+The Real-Time Performance measurements support allows for a PNF to send streaming performance measurements to ONAP. It develops the capability for the PNF/VNF to send a subset of the typical performance measurement data to ONAP. The data can be sent to ONAP more rapidly than for bulk PM, on the order of seconds. This is valuable to the service provider and operators to debug problems and assess the impact of configuration changes. It uses an VES event driven system for high volume data delivery from xNF to ONAP/DCAE.  A new VES-HV (High Volume) Collector supports GPB over TLS/TCP. The xNF generates hvMeas events containing real time PM data.  These events will be GPB encoded and transmitted over TLS/TCP. Collected events are published to DMaaP and sent directly to the Kafka Cluster (bypassing the DMaaP-MR).
+
 Component and API descriptions can be found under:
 
 - `High Volume VNF Event Streaming (HV-VES) Collector <https://onap.readthedocs.io/en/latest/submodules/dcaegen2.git/docs/sections/services/ves-hv/index.html>`_
diff --git a/docs/docs_usecases.rst b/docs/docs_usecases.rst
index 7c1fe4dbc..44eaf385f 100644
--- a/docs/docs_usecases.rst
+++ b/docs/docs_usecases.rst
@@ -40,16 +40,16 @@ Functional Requirements
 ~~~~~~~~~~~~~~~~~~~~~~~
 :ref:`5G - Real Time PM and High Volume Stream Data Collection <docs_realtime_pm>`
 
-:ref:`5G - PNF Plug and Play <docs_5g_pnf_pnp>`
-
 :ref:`5G - Bulk PM <docs_5g_bulk_pm>`
 
 :ref:`5G - Configuration over NETCONF <docs_5G_Configuration_over_NETCONF>`
 
-:ref:`5G - PNF Software Upgrade <docs_5g_pnf_software_upgrade>`
-
 :ref:`5G - OOF and PCI <docs_5G_oof_pci>`
 
+:ref:`PNF Support - PNF Plug and Play <docs_5g_pnf_pnp>`
+
+:ref:`PNF Support - PNF Software Upgrade <docs_5g_pnf_software_upgrade>`
+
 :ref:`Change Management Flexible Designer and Orchestrator <docs_CM_flexible_designer_orchestrator>`
 
 :ref:`Change Management Schedule Optimization <docs_CM_schedule_optimizer>`