5.6 Services support
22.2203GPPRelease 17Service requirements for Home Node B (HNB) and Home eNode B (HeNB)TS
5.6.1 General
– Subject to availability of network resources there shall be no difference in the user experience when using the PLMN provided services via H(e)NB or via NodeB/eNodeB (NB/eNB).
– Depending on operator preferences and in compliance with regulatory requirements ETWS and PWS [9] shall be supported.
– Any additional registration and paging load as a result of H(e)NB deployment shall be minimized.
– Deployment of H(e)NBs and NB/eNBs on the same spectrum should not degrade the performance of UEs receiving service from NB/eNBs.
– Deployment of H(e)NBs and NB/eNBs on the same spectrum should not degrade the NB/eNB’s coverage and capacity.
5.6.2 Emergency services
– Subject to local regulatory requirements, H(e)NB shall support emergency calls, as specified in TS 22.101 [4].
– It shall be possible for the operator to provide location information of the UE attempting an emergency call over a H(e)NB. The location information shall be sufficiently accurate to comply with the regulatory requirements that apply to the area where the H(e)NB is deployed.
5.6.3 IMS Interworking
– The operator can provide CS-to-IMS interworking as specified in the IMS Centralized Services clause of TS 22.101 [4].