Editing My 33.127 Notes (section)

=== 5.4.15	Lawful Interception Handover Interface Query Response (LI_HIQR) Interface ===

Added in 3GPP TS 33.127 V16.6.0 (2020-12)

The Lawful Interception Handover Interface Query Response (LI_HIQR) interface is used by the Law Enforcement Agency (LEA) to send identifier association queries to the IQF and from the IQF to return identities associations to the LEA in response.

The following are examples of some of the information that may be passed over LI_HIQR from LEA to the IQF:
* Information relating to the type of query.
* Warrant/authorization identifier.
* Temporary or permanent identifier provided by the LEA.
* Other information associated with identifier required for localisation provided by LEA.
** Cell identity.
** Tracking area identifier.
* Time that identifier provided by LEA was observed by the LEA.
* Location information request for permanent to temporary identifier association.

The following are examples of some of the information that may be passed over LI_HIQR from IQF to the LEA:
* Information relating to the type of query being responded to.
* Warrant/authorization identifier.
* Temporary and permanent identifiers corresponding to identifier provided by LEA. 
* Identifier association validity start and end times.
* Location information.