SA3-LI is a subcommittee of 3GPP SA3 and is
responsible for supporting LI on the services defined by
3GPP. Services all know: 4G, 5G, IMS.
SA3-LI has several meetings per year. It follows the
overall 3GPP release schema to support new features.
Interaction with the various other 3GPP groups is common.
Delegates in SA3-LI represent
network vendors and lawful interception vendors.
3GPP SA3-LI is currently working on the following topics:
Next generation of TS 33.108, introduces support for LI
on 5G networks. In this new generation, the HI2/HI3
interfaces have been delegated to
ETSI TS 102 232-7.
Additionally, network vendors are now expected to
implement the standardized X1/X2/X3 interfaces as
ETSI TS 103 221.
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Next generation of TS 33.107. Various new concepts have
been introduced, specifically around the more dynamic and
flexible nature of virtualisation.
Similar to TS 33.106 and essentially the "next generation"
of LI requirements. Specifically, requirements around
security and virtualisation have a major impact to the
Defines the HI2/HI3 interfaces used for 2G, 3G, 4G mobile
data interception, CS
services, IMS and several other services.
Note that this specification is becoming less important
since the publication of 3GPP TS 33.128.
Defines the overall LI architecture for the services supported
in TS 33.108. Also defines that a (typically proprietary) X2/X3
implementation is mandatory for implementation by the network
Defines the overall LI requirements in a 3GPP context.