Used DL Coverage Class (2 bit field)

The EC IMMEDIATE ASSIGNMENT TYPE 3 message is sent using blind physical layer transmissions specific to the TSC value used by the MS when sending the corresponding EC MULTILATERATION REQUEST message on the EC-RACH. The Used DL Coverage Class field is included to inform other mobile stations about the downlink coverage class, and thus the number of blind physical layer transmissions, that have been used to transmit the current EC IMMEDIATE ASSIGNMENT TYPE 3 message. Mobile stations that have selected a lower downlink coverage class than what is indicated by this field can, upon successfully reading the control message, can avoid monitoring any remaining blind physical layer transmissions used to send the control message. This field is coded as follows:

bit

2 1

0 0 DL CC 1

0 1 DL CC 2

1 0 DL CC 3

1 1 DL CC 4

EC Page Extension (4 bit field)

See sub-clause 9.1.60.

Acknowledged Access Request N

This field allows for acknowldging up to 6 access requests within a single EC IMMEDIATE ASSIGNMENT TYPE 3 message. Each instance of an acknowledged access request may indicate one of "Short ID", "Random ID Low" or "Random ID High" (see sub-clauses 3.5.2.1.2a, 3.11 and 9.1.65).

Short ID (8 bit field)

See sub-clause 9.1.65

Random ID Low (4 bit field)

This field consists of the Random ID Low value received from a MS when the Extended Access Burst method is used (see sub-clauses 3.5.2.1.2a, 3.11 and 9.1.65).

Random ID High (12 bit field)

This field consists the Random ID High value received from a MS when the Extended Access Burst method is used (see sub-clauses 3.5.2.1.2a, 3.11 and 9.1.65).