12.59 Enhanced Cell Reselection Parameters

3GPP44.060General Packet Radio Service (GPRS)Mobile Station (MS) - Base Station System (BSS) interfaceRadio Link Control / Medium Access Control (RLC/MAC) protocolRelease 17TS

This information element is sent to provide information about parameters for enhanced cell reselection procedures towards E-UTRAN cells, see 3GPP TS 45.008.

Table 12.59.1: Enhanced Cell Reselection Parameters information element

< Enhanced Cell Reselection Parameters IE > ::=
{ 1 < Repeated E-UTRAN Enhanced Cell Reselection Parameters :

< Repeated E-UTRAN Enhanced Cell Reselection Parameters struct >> } ** 0 ;

< Repeated E-UTRAN Enhanced Cell Reselection Parameters struct > ::=
{ 1 < E-UTRAN_FREQUENCY_INDEX : bit (3) > } ** 0

{ 0 — reselection based on target cell RSRP (RSRQ checked for suitability)

< E-UTRAN_Qmin: bit(4) >

| 1 — reselection based on target cell RSRQ (RSRP checked for suitability)

< THRESH_E-UTRAN_high_Q: bit(5) >

{ 0 | 1 < THRESH_E-UTRAN_low_Q: bit(5) > }

{ 0 | 1 < E-UTRAN_QQUALMIN : bit(4) > }

{ 0 | 1 < E-UTRAN_RSRPmin : bit(5) > }

} ;

Table 12.59.2: Enhanced Cell Reselection Parameters information element details

Repeated E-UTRAN Enhanced Cell Reselection Parameters struct

E-UTRAN_FREQUENCY_INDEX (3 bit field)
This field is defined in sub-clause 12.53.

E-UTRAN_Qmin (4 bit field)
E-UTRAN_QQUALMIN (4 bit field)
E-UTRAN_RSRPmin (5 bit field)
THRESH_E-UTRAN_high_Q (5 bit field)
THRESH_E-UTRAN_low_Q (5 bit field)

These fields are used for the inter-RAT cell re-selection algorithm based on priority, as defined in 3GPP TS 45.008. The parameters apply to each E-UTRAN frequency indexed within this structure. Any parameter present overwrites any old data held by the mobile station for these parameters.

If THRESH_E-UTRAN_low_Q is not present, then THRESH_E-UTRAN_low_Q shall take on the same value as THRESH_E-UTRAN_high_Q.