Polytechnic University1 Time slot fields (only first letter should be caps – also in text avoid arbitrary use of caps) SYNC+ & PREAM –Fixed bit patterns that provide additional synchronization Super frame phase (SFP) –Informs terminal of the location of the current block Shared Channel Feedback (SCF) –Busy/reserved/idle (BRI) –Received/not-received (R/N) –Code partial echo (CPE)
Polytechnic University2 Time Slot Fields Guard Time (6 Bits and Time Interval is =.123ms) Ramp Time (6 Bits) Shortened Burst (50 Bits and Time Interval is = 1.03ms) SYNC (28 bits) –Frame Synchronization Information –Adaptive Equalizer Digital Verification Color Code (DVCC) –255 different DVCCs –Represented by an 8-bit word Data Field –User Information –Speech Coding
Polytechnic University3 Time Slot Fields (Cont’d) Slow Associated Control Channel (SACCH) –Out of Band Network –Exchange Network Control Information Fast Associated Control Channel (FACCH) –In of Band Network –Exchange Network Control Information Digital Control Channel Locator (DL) –Helps terminals located digital control channels
Polytechnic University4 New AMPS control channel messages Base to Mobile (FOCC and FVC) Base to Mobile (FOCC and FVC) Authentication Messages Serial Number Request Confirm Base Station Challenge Unique Challenge Order SSD Update Serial Number Response Base Station Challenge Confirm Unique Challenge Confirm SSD Update
Polytechnic University5 New AMPS CC Messages Base to Mobile (FOCC and FVC) Base to Mobile (FOCC and FVC) Call Management Messages Page with Service Message Waiting Origination with Service Page Response with Service
Polytechnic University6 New AMPS CC Messages Base to Mobile (FOCC and FVC) Base to Mobile (FOCC and FVC) Radio Resource Management Message Initial Digital Traffic Channel
Polytechnic University7 Associated CCH Message Forward SACCH and FACCH Reverse SACCH and FACCH Call Management Messages Alert with Info Release Send Burst DTMF Send Continuous DTMF Flash with Info Connect Release Send Burst DTMF Send Continuous DTMF Flash with Info
Polytechnic University8 Associated CCH Message Forward SACCH and FACCH Reverse SACCH and FACCH Authentication Messages SSD Update Unique Challenge Parameter Update Send Station Challenge
Polytechnic University9 Associated CCH Message Forward SACCH and FACCH Reverse SACCH and FACCH Radio Resource Management Message Measurement Order Stop Measurement Order Handoff Physical Layer Control Channel Quality
Polytechnic University10 Message Carried on DCCC BCCH Msgs DCCH Structure CC Selection Parameters System Identity Regulatory Config Alternate RCI Info Service Menu Neighbor Service Info Time and Date Initialization Msgs SPACH Msgs Call Management Messages RACH Msgs Reorder/Intercept Page User Alert Release Message Waiting Capability Request Origination Page Response Capability Support
Polytechnic University11 Message Carried on DCCC BCCH MsgsSPACH Msgs Authentication Messages RACH Msgs Base Station Challenge Confirmation Update SSD order Unique Challenge Order Parameter Update Authentication Base Station Challenge Order Update SSD Confirmation Unique Challenge Confirmation Serial Number
Polytechnic University12 Message Carried on DCCC BCCH Msgs Mobile Assisted Channel Allocation Access Parameters Neighbor Cell Overload Class SPACH Msgs Radio Resources Management Messages RACH Msgs Digital Voice Channel Designation Analog Voice Channel Designation Directed Retry MACA Report