Table 2 Protocol CFCA.

Step 1

For a real-time call , determine , the spreading factor required under normal channel conditions, and , the spreading factor required under poor channel conditions. Admit the real-time call if (5), (9), and (10) hold. For a non-real-time call, determine only , the spreading factor required under normal channel conditions, and admit it if (6), (14), and (15) hold.

Step 2

If a free code with the spreading factor is available, go to next step. Otherwise, use Algorithm CBR to free a code with spreading factor by doing code reassignments.

Step 3

Use Algorithm CBP to initially allocate a particular free code of spreading factor for the new call.

Step 4

Run Algorithm DBA to dynamically allocate codes for meeting delay and rate guarantees of all active calls.