6.38 Personal IoT Networks and Customer Premises Networks

22.2613GPPRelease 18Service requirements for the 5G systemTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

6.38.1 Description

Personal IoT Networks (PINs) and Customer Premises Networks (CPNs) provide local connectivity between UEs and/or non-3GPP devices. The CPN via an eRG, or PIN Elements via a PIN Element with Gateway Capability can provide access to 5G network services for the UEs and/or non-3GPP devices on the CPN or PIN. CPNs and PINs have in common that in general they are owned, installed and/or (at least partially) configured by a customer of a public network operator.

A Customer Premises Network (CPN) is a network located within a premises (e.g. a residence, office or shop). Via an evolved Residential Gateway (eRG), the CPN provides connectivity to the 5G network. The eRG can be connected to the 5G core network via wireline, wireless, or hybrid access. A Premises Radio Access Station (PRAS) is a base station installed in a CPN. Through the PRAS, UEs can get access to the CPN and/or 5G network services. The PRAS can be configured to use licensed, unlicensed, or both frequency bands. Connectivity between the eRG and the UE, non-3GPP Device, or PRAS can use any suitable non-3GPP technology (e.g. Ethernet, optical, WLAN).

A Personal IoT Network (PIN) consists of PIN Elements that communicate using PIN Direct Connection or direct network connection and is managed locally (using a PIN Element with Management Capability). Examples of PINs include networks of wearables and smart home / smart office equipment. Via a PIN Element with Gateway Capability, PIN Elements have access to the 5G network services and can communicate with PIN Elements that are not within range to use PIN Direct Connection. A PIN includes at least one PIN Element with Gateway Capability and at least one PIN Element with Management Capability.

A PIN Element with Management Capability is a PIN Element that provides a means for an authorised administrator to configure and manage a PIN.

The requirements as described in 3GPP TS 22.101 [6] clause 26a can also apply to Personal IoT Networks and Customer Premises Networks.

6.38.2 Requirements

6.38.2.1 General

The 5G system shall support mechanisms to identify a PIN, a PIN Element, an eRG and a PRAS.

Subject to local regulations, the 5G system shall support regulatory requirements for emergency calls, PWS and eCall for UEs connected via a CPN.

NOTE: The above requirement applies to UEs connected via 3GPP access.

The 5G system shall support applications on an Application Server connected to a CPN or PIN.

The 5G system shall be able to support PINs with PIN Elements subscribed to more than one network operator (e.g., a PIN Element that is a MUSIM UE and subscribes to different operators respectively, one PIN Element subscribed to network operator A and another PIN Element subscribed to network operator B).

Subject to regulatory requirements and operator policy, the 5G system shall support an efficient data path within the CPN for intra-CPN communications.

NOTE 1: For services an operator deploys in the 5G network (i.e. not in the CPN), local data routed via eRG does not apply.

Subject to regulatory requirements and operator policy, the 5G system shall support a data path not traversing the 5G network for intra-PIN communications via direct connections.

The 5G system shall enable the network operator to provide any 5G services to any UE via a PRAS connected via an eRG.

NOTE 2: Whether the PRAS can be used by UEs from other PLMNs in the same country as the PLMN associated with the PRAS is subject to regulatory policy on national roaming.

The 5G system shall minimize service disruption for a UE that is moving between CPN access and operator provided mobile access.

NOTE 3: CPN access can imply access via a PRAS or can imply access directly via an eRG. Operator provided mobile access implies access via an operator owned base station.

The 5G system shall minimize service disruption when a CPN communication path changes between two PRASes.

The 5G system shall be able to minimize service disruption when a PIN Element changes the communication path from one PIN Element (e.g. PIN Element with Gateway Capability) to another PIN Element or operator provided mobile access. The communication path between PIN Elements may include licensed and unlicensed spectrum as well as 3GPP and non-3GPP access.

The 5G system shall be able to support PRAS sharing between multiple PLMNs.

The 5G system shall support mechanisms to aggregate, switch or split the service between non-3GPP RAT and PIN direct connections using licensed spectrum.

6.38.2.2 Gateways

The 5G system shall be able to support access to the 5G network and its services via at least one gateway (i.e. PIN Element with Gateway Capability or eRG) for authorised UEs and authorised non-3GPP devices in a PIN or a CPN.

The 5G system shall be able to support IP traffic offload to data network for a CPN.

NOTE 1: The priority of offload can be from default configuration, network or user.

Under operator control, an eRG, shall be able to efficiently deliver 5G multicast/broadcast services to authorized UEs and non-3GPP devices in the CPN.

NOTE 2: The multicast service(s) that each of the authorized UEs and/or non-3GPP devices is allowed to receive may be different.

6.38.2.3 Operation without 5G core network connectivity

The 5G system shall allow PIN Elements to communicate when there is no connectivity between a PIN Element with Gateway Capability and a 5G network. For a Public Safety PIN licensed spectrum may be used for PIN direct communications otherwise unlicensed spectrum shall be used.

When a CPN has lost connectivity with the 5G network, the 5G system shall provide an operator-controlled mechanism to enable:

– in the default configuration, or under certain conditions configured by the operator, the PRAS radio interface shall be deactivated; and

– under certain other conditions configured by the operator, the CPN shall continue existing intra-CPN communication, as long as no interaction with the 5G network is needed (e.g. refreshing security keys).

NOTE 1: The requirement above relates to intra-CPN operations and is subject to operator policy and control, under certain situations.

NOTE 2: Setting up new intra-CPN or intra-PIN communication sessions without connection to the 5G network is only possible with non-3GPP provided credentials.

6.38.2.4 Discovery

The 5G system shall enable a UE or non-3GPP device in a CPN or PIN to discover other UEs or non-3GPP devices within the same CPN or PIN subject to acess rights.

The 5G system shall efficiently support service discovery mechanisms where a UE or non-3GPP device in a CPN or PIN can discover, subject to access rights:

– availability and reachability of other entities (e.g. other UEs or non-3GPP devices) on the CPN or PIN;

– capabilities of other entities on the CPN (e.g. PRAS, eRG) or PIN (e.g. relay UE, connection types) and/or;

– services provided by other entities on the CPN or PIN (e.g. the entity is a printer).The 5G system shall support a mechanism for an Authorised Administrator to indicate whether a PIN element is discoverable by other PIN elements of the same PIN.

The 5G system shall support a mechanism for an Authorised Administrator to indicate whether a PIN element is discoverable by UEs that are not members of the PIN.

6.38.2.5 Relay Selection

In addition to the relay selection requirements in 6.9.2.4, relay selection within a PIN is enabled for both UEs and non-3GPP device and supports the additional selection criteria:

– The 5G system shall support a mechanism for a PIN Element to select a relay for PIN direct connection that enables access to the target PIN Element.

6.38.2.6 Security

The 5G system shall provide user privacy; location privacy, identity protection and communication confidentiallity for non-3GPP devices and UEs that are using the PIN Element with Gateway Capability, eRG or PRAS.

NOTE 1: Privacy protection should not block differentiated routing and QoS for different destinations and services for the UE(s).

The 5G system shall support a mechanism to minimize the security risk of communications using an eRG.

The 5G system shall enable the network operator associated with an eRG to control the security policy of an eRG.

The 5G system shall support a mechanism to minimize the security risk of communications via a PRAS.

The PRAS (and its associated backhaul connectivity) shall provide a level of security equivalent to regular 5G base stations.

The 5G system shall enable the network operator associated with the Premises Radio Access Station (PRAS) to control the security policy of the PRAS.

The 5G system shall support authentication of a UE with 3GPP credentials for communication with entities (UEs, non-3GPP devices) in a CPN.

NOTE 2: To support this functionality the CPN needs to be connected with the 5G core network.

The 5G system shall provide support for a network operator to authenticate a PRAS.

The 5G system shall provide support for a network operator to authorize a PRAS for its use in a CPN.

The 5G system shall support a PIN Element using non operator managed credentials (e.g. provided by a third party) for performing communications within the PIN when those communications use PIN direct connections.

The 5G system shall support a mechanism to mitigate repeated and unauthorized attempts to access PIN Elements (e.g. mitigate a malicious flood of messages).

6.38.2.7 QoS

The 5G system shall support real time E2E QoS monitoring and control for any intra-CPN data traffic to or from a UE (i.e. via eRG or via PRAS and eRG).

The 5G system shall support real time E2E QoS monitoring and control for any data traffic between a UE within a CPN and the 5G network (i.e. via eRG or via PRAS and eRG).

6.38.2.8 Charging

The 5G system shall support charging data collection for data traffic to/from individual UEs in a CPN or PIN (i.e., UEs behind the PIN Element with Gateway Capability or eRG and/or PRAS).

The 5G system shall be able to generate charging data that can differentiate between backhaul for the PRAS and other data traffic over the same access.

6.38.2.9 Creation and Management

The 5G system shall support a mechanism for the network operator to provision an eRG with:

– policies on which transport (e.g. wireless, cable, etc.) is best suited for different negotiated QoS levels,

– authentication credentials,

– identification,

– initial OA&M information, and

– associated subscription

The 5G system shall enable the network operator to configure a PRAS with:

– radio settings pertaining to licensed spectrum,

– authentication credentials,

– identification,

– initial OA&M information, and

– associated subscription.

Subject to operator policy, the 5G system shall enable the Authorised Administrator to provision a PRAS with UE access considerations (allowing all UEs, or allowing specific UEs only)

The 5G system shall provide a mechanism for the Authorised Administrator to trigger initial provisioning of an eRG.

The 5G system shall provide a mechanism for the Authorised Administrator to trigger initial provisioning of a PRAS.

The 5G system shall support mechanisms for a network operator or authorized 3^rd party (e.g., a PIN User) to create, remove and manage a PIN, including:

– Authorizing/deauthorizing PIN Elements;

– Authorizing/deauthorizing PIN Elements with Management Capability;

– Authorizing/deauthorizing PIN Elements with Gateway Capability;

– Establishing duration of the PIN;

– Configure PIN Elements to enable service discovery of other PIN Elements;

– Authorize/deauthorise if a PIN Element can use a PIN Element with Gateway Capability to communicate with the 5GS;

– Authorize/deauthorise for a PIN Element(s):

– which other PIN Element it can communicate with,

– which applications/service or service in that PIN it can access,

– which PIN Element it can use as a relay.

– Authorize/deauthorise a UE to perform service discovery of PIN Elements over the 5G network;

– Configure a PIN Element for external connectivity e.g.via 5G system;

NOTE1: The authorization can include the consideration of the location and time validity of the PIN and its PIN elements.

The 5G system shall support a mechanism to enable a UE that is not a PIN Element of the PIN or a non-3GPP device that is not a PIN element of the PIN to request to join the PIN.

The 5G system shall support mechanisms for a network operator to configure the following policies in a PIN:

– Configure the connectivity type (e.g. licensed, unlicensed PIN direct connection) a PIN Element can use.

5G system shall be able to support mechanism to provide life span information of the PIN to the authorized 3rd party or the PIN elements when the PIN is created for limited time span.

The 5G system shall provide means to control which UEs can connect to a PRAS.

The 5G system shall support mechanisms to provision a PIN Element to use either licensed (under control of a MNO) or unlicensed spectrum (may be under the control of the MNO, or not) (e.g., when it has no connectivity to the 5G system).