12.25 PCCCH Organization Parameters

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

The PCCCH Organization Parameters information element is used to control the organization of PCCCHs present in the cell. This information element contains general PCCCH organization parameters.

Table 12.25.1: PCCCH Organization Parameters information element

< PCCCH Organization Parameters IE > ::=

< BS_PCC_REL : bit >

< BS_PBCCH_BLKS : bit (2) >

< BS_PAG_BLKS_RES : bit (4) >

< BS_PRACH_BLKS : bit (4) > ;

Table 12.25.2: PCCCH Organization Parameters information element details

BS_PCC_REL (1 bit field)
The BS_PCC_REL field indicates if set = 1 that the last PDCH carrying PCCCH and PBCCH will be released shortly. All mobile stations on PCCCH shall then as soon as this information has been received return to CCCH and there obey the information sent on BCCH as specified in 3GPP TS 44.018. If the field is set = 0, no channel release is pending.

BS_PBCCH_BLKS (2 bit field)
The BS_PBCCH_BLKS field indicates the number of blocks allocated to the PBCCH in the multiframe. The field is coded as the binary representation of BS_PBCCH_BLKS as defined in 3GPP TS 45.002 minus 1.

BS_PAG_BLKS_RES (4 bit field)
The BS_PAG_BLKS_RES field indicates the number of blocks on each PDCH carrying the PCCCH per multiframe where neither PPCH nor PBCCH should appear. The field is coded as the binary representation of BS_PAG_BLKS_RES as defined in 3GPP TS 45.002. Range: 0-10. The BS_PAG_ BLKS_RES value shall fulfil the condition that is defined in 3GPP TS 45.002. If the condition is not fulfilled, then the behaviour of the mobile station is implementation dependent.

BS_PRACH_BLKS (4 bit field)
The BS_PRACH_BLKS field indicates the number of blocks reserved in a fixed way to the PRACH channel on any PDCH carrying PCCCH (see 3GPP TS 45.002). The field is coded as the binary representation of BS_PRACH_BLKS as defined in 3GPP TS 45.002. Range: 0-12. All other values are reserved and shall be interpreted as no Block reserved for PRACH.