2. section (Continued) 6 Call Layer 3 Processing

• If the mobile station does not send a Mobile Station Reject Order in response to the Candidate Frequency Search Request Message, it shall perform the following:

• 
  The mobile station shall send a Candidate Frequency Search Response Message in assured mode, within T_56m seconds of receiving the Candidate Frequency Search Request Message. The mobile station shall set the fields of the Candidate Frequency Search Response Message as follows:
  

 The mobile station shall set MAX_OFF_TIME_FWD and MAX_OFF_TIME_REV to its estimate of the maximum number of frames or power control groups for which it will need to suspend its current Forward Traffic Channel processing and Reverse Traffic Channel processing, respectively, during any single visit away from the Serving Frequency, to search a subset of rec_search_set, and to re-tune to the Serving Frequency.

 The mobile station shall set PCG_OFF_TIMES to ‘1’ if TOTAL_OFF_TIME_FWD, MAX_OFF_TIME_FWD, TOTAL_OFF_TIME_-FWD and MAX_OFF_TIME_FWD are expressed in units of power control groups. If these time estimates are expressed in units of frames, the mobile station shall set PCG_OFF_TIMES to ‘0’. The mobile station shall not use power control groups as the unit of delay if P_REV_IN_USE_s is less than six.

 If ALIGN_TIMING_r is equal to ‘1’, the mobile station shall set ALIGN_TIMING_USED to ‘1’ to indicate if it will align its search as requested by the base station; otherwise, the mobile station shall set ALIGN_TIMING_USED to ‘0’. If ALIGN_TIMING_USED is set to ‘1’, the mobile station shall set NUM_VISITS to the number of visits per search period minus one and, if NUM_VISITS is not equal to 0, the mobile station shall set INTER_VISIT_TIME, in units of frames or power control groups, to its estimate of the time between subsequent visits within the same search period.

 When the message takes effect, the mobile station shall perform the following actions:

 If any periodic search is in progress, the mobile station shall abort it (see 2.6.6.2.8.3.4 and 2.6.6.2.10.4).

 If SEARCH_TYPE_r is equal to ‘00’, the mobile station may stop maintaining the average of the Serving Frequency received power that is used in the handoff and search procedures.

 If SEARCH_TYPE_r is equal to ‘01’ or ‘11’, and the mobile station uses received power measurements in the search procedure, it should start monitoring the received power on the Serving Frequency, if it is not already doing so. While it is tuned to the Serving Frequency, the mobile station should measure the received power once every frame (0.02 seconds), and should maintain an average of the received power over the last N_12m frames.

 Candidate Frequency Search Request Message sequence number (CFSRM_SEQ_s = CFSRM_SEQ_r)

 Periodic search flag: If SEARCH_TYPE_r is equal to ‘11’, the mobile station shall set PERIODIC_SEARCH_s to ‘1’; otherwise, the mobile station shall set PERIODIC_SEARCH_s to ‘0’.

 Search period for the analog frequencies search
(SEARCH_PERIOD_s = SEARCH_PERIOD_r)

 Candidate Frequency search mode


(SEARCH_MODE_s = SEARCH_MODE_r)

 Band class for the analog frequencies


(CF_CDMABAND_s = BAND_CLASS_r)

 Serving Frequency total pilot E_c threshold


(SF_TOTAL_EC_THRESH_s = SF_TOTAL_EC_THRESH_r)

 Serving Frequency total pilot E_c/I_o threshold


(SF_TOTAL_EC_IO_THRESH_s = SF_TOTAL_EC_IO_THRESH_r)

 Candidate Frequency Analog Search Set: The mobile station shall replace the Candidate Frequency Analog Search Set with the analog frequencies included in the Candidate Frequency Search Request Message.

• 
  Search offset time (SEARCH_OFFSET_s = SEARCH_OFFSET_r)
  

+ If ALIGN_TIMING_r is equal to ‘1’ and the mobile station will align its search as requested by the base station, the mobile station shall set ALIGN_TIMING_USED_s to ‘1’; otherwise, the mobile station shall set ALIGN_TIMING_USED_s to ‘0’.

+ If the mobile station uses power control groups as the unit of delay, it shall set SEARCH_TIME_RESOLUTION_s to 0.00125; otherwise, it shall set SEARCH_TIME_RESOLUTION_s to 0.02.

+ If SEARCH_TYPE_r is equal to ‘01’, the mobile station shall perform a single search of the Candidate Frequency Analog Search Set as described in 2.6.6.2.10.1. If SEARCH_TYPE_r is equal to ‘11’, the mobile station shall perform the periodic search procedures described in 2.6.6.2.10.2.

The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00000110’ (capability not supported) if P_REV_IN_USE_s is less than or equal to four and the mobile station does not support mobile-assisted hard handoff; otherwise, the mobile station shall perform the actions described in the remainder of this section to process the Candidate Frequency Search Control Message.

If SEARCH_MODE_s is equal to ‘0000’:

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00001010’ (search set not specified), if SEARCH_TYPE_r is not equal to ‘00’ and the Candidate Frequency Search Set is empty.

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00001011’ (invalid search request), if SEARCH_TYPE_r is not equal to ‘00’ and the Candidate Frequency is the same as the Serving Frequency (CF_CDMABAND_s is equal to CDMABAND_s and CF_CDMACH_s is equal to CDMACH_s).

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘0001101’ (search period too short), if SEARCH_TYPE_r is equal to ‘11’ and search_period is less than (max (fwd_time, rev_time ) + T_71m) seconds, where

search_period = time period corresponding to SEARCH_PERIOD_r shown in
Table 2.6.6.2.8.3.2-1,

fwd_time = the mobile station’s estimate of the total length of time, in seconds, for which the mobile station will need to suspend its current Forward Traffic Channel processing in order to tune to the Candidate Frequency, to search the Candidate Frequency Search Set and to re-tune to the Serving Frequency; if the mobile station searches the Candidate Frequency Search Set in multiple visits, fwd_time is the total time for all visits to the Candidate Frequency in a search period (see 2.6.6.2.8.3.2),

and



rev_time = the mobile station’s estimate of the total length of time, in seconds, for which the mobile station will need to suspend its current Reverse Traffic Channel processing in order to tune to the Candidate Frequency, to search the Candidate Frequency Search Set and to re-tune to the Serving Frequency; if the mobile station searches the Candidate Frequency Search Set in multiple visits, rev_time is the total time for all visits to the Candidate Frequency in a search period.

• If the mobile station does not reject the Candidate Frequency Search Control Message, it shall perform the following actions when the message takes effect:

 If SEARCH_TYPE_r is equal to ‘00’:

+ The mobile station shall set PERIODIC_SEARCH_s to ‘0’.

+ The mobile station may stop maintaining the average of the Serving Frequency received power that is used in the handoff and search procedures.

+ CDMA band class (SF_CDMABAND_s = CDMABAND_s)

+ Frequency Assignment (SF_CDMACH_s = CDMACH_s)

+ Pilot detection threshold (SF_T_ADD_s = T_ADD_s)

+ The mobile station shall set PERIODIC_SEARCH_s to ‘0’.

+ If mobile station uses received power measurements in the search procedure, it should start monitoring the received power on the Serving Frequency, if it is not already doing so. While it is tuned to the Serving Frequency, the mobile station should measure the received power once every frame (0.02 seconds), and should maintain an average of the received power over the last N_12m frames.

+ The mobile station shall perform a single search of the Candidate Frequency Search Set, as described in 2.6.6.2.8.3.1.

+ The mobile station shall set PERIODIC_SEARCH_s to ‘1’.

+ If mobile station uses received power measurements in the search procedure, it should start monitoring the received power on the Serving Frequency, if it is not already doing so. While it is tuned to the Serving Frequency, the mobile station should measure the received power once every frame (0.02 seconds), and should maintain an average of the received power over the last N_12m frames.

+ The mobile station shall perform the periodic search procedures for the Candidate Frequency Search Set, as described in 2.6.6.2.8.3.2.

If SEARCH_MODE_s is equal to ‘0001’:

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00001010’ (search set not specified), if SEARCH_TYPE_r is not equal to ‘00’ and the Candidate Frequency Analog Search Set is empty.

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘0001101’ (search period too short), if SEARCH_TYPE_r is equal to ‘11’ and search_period is less than (max (fwd_time, rev_time ) + T_71m) seconds, where

search_period = time period corresponding to SEARCH_PERIOD_r shown in
Table 2.6.6.2.8.3.2-1,

fwd_time = the mobile station’s estimate of the total length of time, in seconds, for which the mobile station will need to suspend its current Forward Traffic Channel processing in order to tune to each analog frequency in the Candidate Frequency Analog Search Set and measure its strength, and to re-tune to the Serving Frequency; if the mobile station searches the Candidate Frequency Analog Search Set in multiple visits, fwd_time is the total time for all visits away from the Serving Frequency in a search period (see 2.6.6.2.10.2),

and



rev_time = the mobile station’s estimate of the total length of time, in seconds, for which the mobile station will need to suspend its current Reverse Traffic Channel processing in order to tune to each analog frequency in the Candidate Frequency Analog Search Set and measure its strength, and to re-tune to the Serving Frequency; if the mobile station searches the Candidate Frequency Analog Search Set in multiple visits, fwd_time is the total time for all visits away from the Serving Frequency in a search period (see 2.6.6.2.10.2).

• If the mobile station does not reject the Candidate Frequency Search Control Message, it shall perform the following actions when the message takes effect:

 If SEARCH_TYPE_r is equal to ‘00’:

+ The mobile station shall set PERIODIC_SEARCH_s to ‘0’.

+ The mobile station may stop maintaining the average of the Serving Frequency received power that is used in the handoff and search procedures.

+ The mobile station shall set PERIODIC_SEARCH_s to ‘0’.

+ If mobile station uses received power measurements in the search procedure, it should start monitoring the received power on the Serving Frequency, if it is not already doing so. While it is tuned to the Serving Frequency, the mobile station should measure the received power once every frame (0.02 seconds), and should maintain an average of the received power over the last N_12m frames.

+ The mobile station shall perform a single search of the Candidate Frequency Analog Search Set, as described in 2.6.6.2.10.1.

+ The mobile station shall set PERIODIC_SEARCH_s to ‘1’.

+ If mobile station uses received power measurements in the search procedure, it should start monitoring the received power on the Serving Frequency, if it is not already doing so. While it is tuned to the Serving Frequency, the mobile station should measure the received power once every frame (0.02 seconds), and should maintain an average of the received power over the last N_12m frames.

+ The mobile station shall perform the periodic search procedures for the Candidate Frequency Analog Search Set, as described in 2.6.6.2.10.2.

• If NGHBR_SRCH_MODE_r is equal to ‘01’ or ‘11’, the mobile station shall store the search priority (SEARCH_PRIORITY_s = SEARCH_PRIORITY_r) associated with each of the neighboring base stations contained in the Extended Neighbor List Update Message which are in the mobile’s neighbor set.

• If NGHBR_SRCH_MODE_r is equal to ‘01’ or ‘11’, the mobile station shall set the SRCH_OFFSET_INCL_s field ‘0’.

• If NGHBR_SRCH_MODE_r is equal to ‘10’ or ‘11’, the mobile station shall perform the following:

 Store the neighbor pilot channel search window size (SRCH_WIN_NGHBR_s = SRCH_WIN_NGHBR_r) associated with each of the neighboring base stations contained in the Extended Neighbor List Updated Message which are in the mobile’s neighbor set,

 If SRCH_OFFSET_INCL_r equals to ‘1’, set the SRCH_OFFSET_NGHBR field of NGHBR_REC[i] to the i^th occurrence of SRCH_OFFSET_NGHBR_r,

 Set SRCH_OFFSET_INCL_s to SRCH_OFFSET_INCL_r.

• The mobile station shall update the default search window size for its Neighbor Set (SRCH_WIN_N_s = SRCH_WIN_N_r).

• The mobile station shall set SEARCH_PRIORITY_INCL_s and SRCH_WIN_NGHBR_INCL_s to the value specified in Table 2.6.6.2.5.1-1 corresponding to NGHBR_SRCH_MODE_r.

• If USE_TIMING is equal to ‘1’, the mobile station shall store the timing included flag (TIMING_INCL) associated with each of the neighboring base stations contained in the Extended Neighbor List Update Message which are in the mobile station neighbor set; otherwise the mobile station shall set the timing included flag (TIMING_INCL) associated with each of the neighboring base stations to ‘0’.

• If USE_TIMING is equal to ‘1’ and TIMING_INCL_r is equal to ‘1’, the mobile station shall store the neighbor transmit time offset (NGHBR_TX_OFFSET = NGHBR_TX_OFFSET_r) associated with each of the neighboring base stations contained in the Extended Neighbor List Update Message which are in the mobile station neighbor set.

• If USE_TIMING is equal to ‘1’ and the TIMING_INCL is equal to ‘1’, then the mobile station shall perform the following:

 If the GLOBAL_TIMING_INCL field is equal to ‘0’, then the mobile station shall store the neighbor transmit time duration (NGHBR_TX_DURATION =

• For each of the neighboring base stations contained in the General Neighbor List Message, the mobile station shall set ADD_PILOT_REC_INCL field of NGHBR_REC[i] to the i^th occurrence of ADD_PILOT_REC_INCL_r. If ADD_PILOT_REC_INC_r equals ‘1’, for each pilot, the mobile station shall also perform the following:

• 
  If NGHBR_PILOT_REC_TYPE_r is equal to ‘000’. The mobile station shall set the OTD_POWER_LEVEL field of NGHBR_PILOT_REC to OTD_POWER_LEVEL_r and set the TD_MODE field of NGHBR_PILOT_REC to TD_MODE_r.
  
• 
  If NGHBR_PILOT_REC_TYPE_r is equal to ‘001’, the mobile station shall:
  

+ Set the AUX_PILOT_QOF field of NGHBR_PILOT_REC to QOF_r

+ Set the AUX_PILOT_WALSH_CODE field of PILOT_REC to AUX_PILOT_WALSH_r with the Walsh Code length specified by WALSH_LENGTH_r

• 
  If NGHBR_PILOT_REC_TYPE_r is equal to ‘010’, the mobile station shall:
  

+ Set the AUX_PILOT_TD_QOF field of NGHBR_PILOT_REC to QOF_r.

+ Set the AUX_PILOT_TD_WALSH_CODE field of NGHBR_PILOT_REC to AUX_TD_WALSH_r with the Walsh Code length specified by WALSH_LENGTH_r.

+ Set the AUX_TD_POWER_LEVEL field of NGHBR_PILOT_REC to AUX_TD_POWER_LEVEL_r.

+ Set the TD_MODE field of NGHBR_PILOT_REC to TD_MODE_r.

The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to the specified value if any of the following conditions is true, and shall not perform any other action described in this section for processing the Supplemental Channel Assignment Message:

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00000110’ (capability not supported), if the number of forward or reverse Supplemental Code Channels specified in the Supplemental Channel Assignment Message is greater than the maximum number of Supplemental Code Channels supported by the mobile station.

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00000011’ (message structure not acceptable), if both USE_REV_HDM_SEQ and EXPL_REV_START_TIME or both USE_FOR_HDM_SEQ and EXPL_FOR_START_TIME specified in the Supplemental Channel Assignment Message are set to ‘1’.

• The mobile station shall send a Mobile Station Reject Order with the ORDQ field set to ‘00000100’ (message field not in valid range), if PILOT_PN specified in the Supplemental Channel Assignment Message is not in the Active Set and this message is not linked with a General Handoff Direction Messageexplicit start time is specified in the Supplemental Channel Assignment Message.

• The mobile station shall store the following parameters from the Supplemental Channel Assignment Message:

• 
  If USE_FOR_HDM_SEQ_r is equal to ‘1’, then the mobile station shall store the following:
  

+ The forward Supplemental Code Channel assignment order (SCAM_FOR_ORDER_s = least significant bit of FOR_SUP_CONFIG_r)

+ The forward duration assignment indicator (SCAM_FOR_DURATION_MODE_s = USE_FOR_DURATION_r).

 Use General Handoff Direction Message reverse sequence number indicator (USE_REV_HDM_SEQ_s = USE_REV_HDM_SEQ_r)

• 
  If USE_REV_HDM_SEQ_r is equal to ‘1’, then the mobile station shall store the following:
  

+ The reverse duration assignment indicator (SCAM_REV_DURATION_MODE_s = USE_REV_DURATION_r).

• If USE_RETRY_DELAY_r is ‘0’, then the mobile station shall store 0 as RETRY_DELAY_s. The mobile station may send subsequent Supplemental Channel Request Messages whenever RETRY_DELAY_s is set to 0.

• If USE_RETRY_DELAY_r is set to ‘1’, the mobile station shall interpret the Supplemental Channel Assignment Message as an indication that the base station has specified a Supplemental Channel Request Message retry delay in RETRY_DELAY_r as follows:

 The mobile station shall store the next system time 80 ms boundary + RETRY_DELAY_r  320 ms as RETRY_DELAY_s. The mobile station shall not send any subsequent Supplemental Channel Request Message until after the system time stored in RETRY_DELAY_s. At the system time stored in RETRY_DELAY_s, the mobile station shall reset RETRY_DELAY_s to 0.

 If RETRY_DELAY_r is ‘00000000’, then the mobile station shall store 0 as RETRY_DELAY_s. The mobile station may send subsequent Supplemental Channel Request Messages whenever RETRY_DELAY_s is set to 0.

• 
  If RETRY_DELAY_r is ‘11111111’, then the mobile station shall store infinity as RETRY_DELAY_s, and the mobile station shall not send any further Supplemental Channel Request Messages until the mobile station receives a new Supplemental Channel Assignment Message with no retry delay or a non-infinite retry delay specified, or until the mobile station receives a General Handoff Direction Message with a CLEAR_RETRY_DELAY indication set.
  
  
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