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8.4 Network layer capabilities of EHM components

8.4.1 Policy-based communication
According to the capabilities requirements described in clause 9.4.1 of [ITU-T Y.2065], the network
layer of the EHM terminal, EHM gateway, IoT platform and EHM application server is required to
support policy-based communication capability and is required to be able to set the network policy in
order to support the QoS of EHM services.
8.4.2 Network-based locating

According to the capability requirements described in clause 9.4.2 of [ITU-T Y.2065], the EHM
capabilities on the network layer are recommended to provide the location-related information from
the network layer (e.g., IP address, access point location, and so on) to locate the position of EHM
terminals and EHM gateways.
Specifically, the network layer of the EHM terminal and EHM gateway is recommended to provide
the location-related information. In addition, the network layer of the EHM terminal and EHM
gateway is recommended to support event-triggered location information notification. In this way,
when the EHM terminal or EHM gateway moves out of a preconfigured network area, a network
location information notification may be triggered by the event.

8.4.3 Network resource provision
According to the capability requirements described in clause 9.4.3 of [ITU-T Y.2065] , the EHM
capabilities on the network layer are required to provide the network resources (e.g., network address,
network bandwidth) to establish network connectivity.
Specifically, the network layer of the EHM terminal, EHM gateway, IoT platform and EHM
application server is required to be able to provide the network resources (e.g., network address,
network bandwidth) to establish network connectivity. The network layer of each of these
components is recommended to inform the other EHM components about the provided network
resources (e.g., network address, network bandwidth).

8.5 Device layer capabilities of EHM components

8.5.1 Device identification

According to the capability requirements described in clause 9.5.1 of [ITU-T Y.2065], the EHM
capabilities on the device layer of the EHM terminal and EHM end point are required to provide
device profiles in order to identify the intended use of EHM devices, such as for support of EHMH,
EHMR or EHMT services.

8.5.2 Data sensing and processing
According to the capability requirements described in clause 9.5.3 of [ITU-T Y.2065], the EHM
capabilities on the device layer of the EHM terminal and EHM end point are required to support data
sensing and processing capability to obtain the EHM data.
This capability includes:
1) Data sensing
Data sensing is used to obtain the raw EHM data according to regulation and laws.

2) Data processing
Data processing is used to process the raw EHM data, such as filtering, aggregating and
compressing, in order to improve the quality and usage efficiency of EHM data.
The device layer of the EHM terminal is recommended to support data sensing for multiple EHM
parameters in a single EHM terminal.

Rec. ITU-T Y.4408/Y.2075 (09/2015) 671