Extended CDMA Channel List Message on Primary Broadcast Control Channel

2.6.2.2.12.2 Extended CDMA Channel List Message on Primary Broadcast Control Channel

If the Extended CDMA Channel List Message lists CDMA channels from more than one band class and the mobile station hashes to a band class other than the current band class, the mobile station shall process this message after UNI_NGHBR_LST_MSG_SEQ_s becomes current.

The mobile station shall store the following parameters:

• Configuration message sequence number (CONFIG_MSG_SEQ_s = CONFIG_MSG_SEQ_r, EXT_CHAN_LST_MSG_SEQ_s = CONFIG_MSG_SEQ_r).

The mobile station shall process this message if FD_CHAN_LST_SEQ_s is current and the mobile station does not support any bandclass listed by the base station in the Flex Duplex CDMA Channel List Message or if the mobile station does not support flexible spacing between forward and reverse channels. Otherwise, the mobile station shall ignore this message.

To determine the CDMA Channel (Frequency Assignment) for its Primary Broadcast Control Channel, the mobile station shall first select a subset of CDMA channels from the Extended CDMA Channel List Message that will be used for channel hashing. The attributes for channel selection are support for that frequency, the band subclass (if included), RC greater than 2, Quick Paging Channel and transmit diversity. The mobile station shall first select the entire CDMA channel list for channel hashing. Starting from an empty list, the mobile station shall then select the first CDMA Channel list as follows:

• For each band class record included in this message, the mobile station shall perform the following:

• 
  If band subclass information is included for this band class record (SUBCLASS_INFO_INCL_r = ‘1’ or ADD_SUBCLASS_INFO_INCL_r = ‘1’), the mobile station shall add only those channels belonging to the band class and band subclasses that are supported by both the mobile station and the base station, in the order they appear in the Extended CDMA Channel List Message¹⁰.
  
• 
  Otherwise (SUBCLASS_INFO_INCL_r = ‘0’, ADD_SUBCLASS_INFO_INCL_r = ‘0’ or P_REV_IN_USE_s is less than 11), the mobile station shall add only those channels that it supports for the associated band class, in the order they appear in the Extended CDMA Channel List Message.
  

• If TD_SEL_INCL_r is equal to ‘1’, the mobile station shall perform the following:

 If the mobile station is capable of supporting the transmit diversity mode specified by TD_MODE_r, the mobile station shall select those CDMA channels that have TD_HASH_IND_r set to ‘1’ from the CDMA channel list for the first CDMA Channel list while preserving the order.

 If the mobile station is not capable of supporting the transmit diversity mode specified by TD_MODE_r, the mobile station shall select those CDMA channels that have TD_HASH_IND_r set to ‘0’ from the CDMA channel list for the first CDMA Channel list while preserving the order.

• If TD_SEL_INCL_r is equal to ‘0’, the mobile station shall select the entire list for the first CDMA Channel list.

From this first CDMA Channel list, the mobile station shall select the second CDMA Channel list as follows:

• If RC_QPCH_SEL_INCL_r is equal to ‘1’ and the mobile station is capable of RC greater than 2 or capable of supporting QPCH, the mobile station shall select those CDMA channels with RC_QPCH_HASH_IND_r set to ‘1’ for the second CDMA Channel list for CDMA channel hashing while preserving the order. If this list is empty, the mobile station shall use the first CDMA Channel list as the second CDMA Channel list for CDMA channel hashing.

• Otherwise, the mobile station shall use the first CDMA Channel list as the second CDMA Channel list for CDMA channel hashing.

From this second CDMA Channel list, the mobile station shall select the third CDMA Channel listsubset as follows:

• If CDMA_FREQ_WEIGHT_INCL_r is equal to ‘0’, the mobile station shall set the third CDMA Channel list to be equal to the second CDMA Channel list

• If CDMA_FREQ_WEIGHT_INCL_r is equal to ‘1’, starting with an empty third CDMA Channel list, for each entry “E” in the second CDMA Channel list in the order they appear, the mobile station shall append N consecutive entries “E” at the end of the third CDMA Channel, where N is the weight of “E” and equals either CDMA_FREQ_WEIGHT_r+1 or ADD_CDMA_FREQ_WEIGHT_r+1 appropriately

The mobile station shall determine the band class for its Primary Broadcast Control Channel as follows:

• The mobile station shall generate a CDMA band list as follows. Starting with an empty CDMA band list, for each channel in the third CDMA Channel list in the order they appear, the mobile station shall append an entry equal to the band class of that channel, at the end of the CDMA band list

• The mobile station shall use the hash algorithm specified in 2.6.7.1 and the size of the CDMA band list to compute the band class for its Primary Broadcast Control Channel.

After the band class has been selected, the mobile station shall determine the CDMA Channel (Frequency Assignment) for its Primary Broadcast Control Channel as follows:

• The mobile station shall eliminate those channels which are not in the computed band class from the third CDMA Channel list to generate the final CDMA Channel list.

• If the final CDMA Channel list is empty, the mobile station shall enter the System Determination Substate with an acquisition failure indication

• The mobile station shall then use the hash algorithm specified in 2.6.7.1 with the number of channels in the final CDMA Channel list to determine the CDMA Channel (Frequency Assignment) for its Primary Broadcast Control Channel.

If the CDMA Frequency Assignment has changed but the band class is the same (the computed CDMA Channel is different from CDMACH_s but the computed CDMA band class is CDMABAND_s), the mobile station shall perform the following:

• Set CDMACH_s to the new CDMA Channel.

• Set CONFIG_MSG_SEQ_s, A41_SYS_PAR_MSG_SEQ_s, MC_RR_PAR_MSG_SEQ_s, UNI_NGHBR_LST_MSG_SEQ_s, EXT_CHAN_LST_MSG_SEQ_s, FD_CHAN_LST_MSG_SEQ_s, USER_ZONE_ID_MSG_SEQ_s, and PRI_NGHBR_LST_MSG_SEQ_s and ACC_MSG_SEQ_s to NULL. The mobile station shall keep the parameters associated with the current overhead messages until they are updated on the new Primary Broadcast Control Channel¹¹.

• If the mobile station is operating in the Spreading Rate 1:

 If the assigned CDMA channel supports transmit diversity, the mobile station shall set the following fields corresponding to the assigned CDMA channel:

+ SR1_TD_POWER_LEVEL_s = TD_POWER_LEVEL_r.

+ SR1_TD_MODE_s = TD_MODE_r.

+ BRAT_s = SR1_BRAT_TD_s.

+ BCCH_CODE_RATE_s = SR1_CRAT_TD_s.

+ BCCH_s = BCCH_CODE_CHAN_TD_s.

 Otherwise, the mobile station shall set the following fields corresponding to the assigned CDMA channel:

+ BRAT_s = SR1_BRAT_NON_TD_s,

+ BCCH_CODE_RATE_s = SR1_CRAT_NON_TD_s,

+ BCCH_s = BCCH_CODE_CHAN_NON_TD_s,

• Tune to the new CDMA Channel

If the band class has changed (the computed CDMA band class is different than CDMABAND_s), the mobile station shall perform the following actions:

• If BYPASS_SYS_DET_IND_r is equal to ‘0’ for this CDMA channel, the mobile station shall perform the following:

– Set NEW_BAND_RECORD.NEW_BAND_CLASS to the computed band class.

– Set NEW_BAND_RECORD.NEW_FREQ to the computed CDMA Channel.

– The mobile station shall enter the System Determination Substate of the Mobile Station Initialization State with a new band indication.

• If BYPASS_SYS_DET_IND_r is equal to ‘1’ for this CDMA channel, the mobile station shall perform the following:

– Set CDMACH_s to the new CDMA Channel.

– Set CDMABAND_s to the new band class.

• 
  Set CONFIG_MSG_SEQ_s, A41_SYS_PAR_MSG_SEQ_s, MC_RR_PAR_MSG_SEQ_s, UNI_NGHBR_LST_MSG_SEQ_s, EXT_CHAN_LST_MSG_SEQ_s, FD_CHAN_LST_MSG_SEQ_s, USER_ZONE_ID_MSG_SEQ_s, and PRI_NGHBR_LST_MSG_SEQ_s and ACC_MSG_SEQ_s to NULL. The mobile station shall keep the parameters associated with the current overhead messages until they are updated on the new Primary Broadcast Control Channel¹².
  
• 
  If the mobile station is operating in the Spreading Rate 1:
  

 SR1_TD_POWER_LEVEL_s = TD_POWER_LEVEL_r.

 SR1_TD_MODE_s = TD_MODE_r.

 BRAT_s = SR1_BRAT_TD_s.

 BCCH_CODE_RATE_s = SR1_CRAT_TD_s.

 BCCH_s = BCCH_CODE_CHAN_TD_s.

• 
  Otherwise, the mobile station shall set the following fields corresponding to the assigned CDMA channel:
  

+ BCCH_CODE_RATE_s = SR1_CRAT_NON_TD_s,

+ BCCH_s = BCCH_CODE_CHAN_NON_TD_s,

– Tune to the new CDMA Channel