C.2 Measurement Report for Handover and Cell Change Order to GAN Iu mode
3GPP44.318Generic Access Network (GAN)Mobile GAN interface layer 3 specificationRelease 17TS
The MS uses the (Source-RAT) measurement report procedure to "request" handover to GAN Iu mode for CS, PS or both CS and PS sessions. It also uses it to "request" a Cell Change Order from GERAN to GAN Iu mode for PS sessions.
The procedure is initiated after the MS has successfully registered with GANC, provided the following conditions are met:
– the MS stays registered with GANC;
– the GANC directs the MS to operate in GAN Iu mode;
– the GANC includes the IE "GAN Iu Mode Cell Description" in the GA-RC REGISTER ACCEPT message;
– if the source RAT is GERAN, the MS is in dedicated mode and the network has requested reports according to NETWORK_CONTROL_ORDER or in DTM mode (simultaneous dedicated mode and packet transfer mode);
– if the source RAT is UTRAN, the MS is in UTRA RRC Connected Mode (i.e., for CS domain, PS domain or both CS and PS domain services);
– the UARFCN and Primary Scrambling Code provided by GANC in the IE "GAN Iu Mode Cell Description" (i.e. the GAN-UARFCN and GAN-PSC) are within the cell info list used for measurement reporting in the source RAT;
– no UTRAN neighbour cell matching the {GAN-UARFCN, GAN-PSC} couple has been detected by the MS.
The MS shall not be connected to more than one GANC at any one time, and therefore shall not report more than one {GAN-UARFCN, GAN-PSC} couple during the period of the connection to the GANC.
The RR entity in the source RAT shall report that the cell associated with the {GAN-UARFCN, GAN-PSC} couple has the best possible receiving level (i.e., RSCP = 91 or Ec/No=63).
Annex D (normative):
RFC 4867 Framing Parameters for GAN