< EC Fixed Uplink Allocation struct > ::=

< Enhanced Access Burst : bit (1) >

{ 0 | 1 < Timing Advance : bit (6) }

< STARTING_UL_TIMESLOT: bit (3) >

< Uplink_TFI_Assignment : bit (5) >

< STARTING_DL_TIMESLOT_OFFSET: bit (2) >

< OVERLAID_CDMA_CODE: bit (2) >

{ 0 – use MCS-1 for uplink packet transfer

| 1 < Assigned MCS : bit (4) > }

< GAMMA : bit (5) >

< ALPHA Enable : bit (1) >

{ 0 | 1 < P0 : bit (4) >

< PR_MODE : bit (1) > }

< Start_First_UL_Data_Block : bit (4) >

{ 1 { 0 < Start_FN_Next_Data_Block : bit (3) >

| 1 – no gap between last block and next block } } ** 0 ;

Used DL Coverage Class (2 bit field)

This field is coded as described in sub-clause 9.1.60.

EC Page Extension (4 bit field)

This field is coded as described in sub-clause 9.1.60.

EC Request Reference (13 bit field)

This field is coded as described in sub-clause 10.5.2.83

EC Packet Channel Description Type 3 (15 bit field)

This information element is coded as described in sub-clause 10.5.2.88

Enhanced Access Burst (1 bit field)

This field is coded as described in sub-clause 9.1.60.

Timing Advance (6 bit field)

This field is coded as described in sub-clause 9.1.60.

STARTING_UL_TIMESLOT (3 bit field)

This field indicates the first assigned timeslot within the set of assigned uplink timeslots.:

Bit

3 2 1

0 0 0 Timeslot 0 is the first assigned uplink timeslot

0 0 1 Timeslot 1 is the first assigned uplink timeslot

0 1 0 Timeslot 2 is the first assigned uplink timeslot

0 1 1 Timeslot 3 is the first assigned uplink timeslot

1 0 0 Timeslot 4 is the first assigned uplink timeslot

1 0 1 Timeslot 5 is the first assigned uplink timeslot

1 1 0 Timeslot 6 is the first assigned uplink timeslot

1 1 1 Timeslot 7 is the first assigned uplink timeslot

If the field EC_Reduced_PDCH_Allocation is set to 0 in the EC SYSTEM INFORMATION TYPE 2 message (see sub-clause 9.1.43q): a mobile station assigned CC5 on the uplink is always assigned the use of 4 consecutive timeslots and therefore only timeslot 0, 1, 2, 3 or 4 shall be indicated as the first assigned uplink timeslot.

If the field EC_Reduced_PDCH_Allocation is set to 1 in the EC SYSTEM INFORMATION TYPE 2 message (see sub-clause 9.1.43q): A mobile station assigned CC5 on the uplink is always assigned the use of 2 consecutive timeslots and therefore only timeslot 0, 1, 2, 3, 4, 5 or 6 shall be indicated as the first assigned uplink timeslot.

Uplink_TFI_Assignment (5 bit field)

This field is the binary representation of the Temporary Flow Identity, see 3GPP TS 44.060. Range: 0 to 31.

STARTING_DL_TIMESLOT_OFFSET (2 bit field)

This field is coded as described in sub-clause 9.1.60.

OVERLAID_CDMA_CODE (2 bit field)

This field is coded as described in sub-clause 9.1.60.

Assigned MCS (4 bit field)

This field is coded as per EGPRS Modulation and Coding Scheme IE decribed in 3GPP TS 44.060.

GAMMA (5 bit field)

This field is the binary representation of the parameter CH for MS output power control in units of 2 dB, see 3GPP TS 45.008.

ALPHA Enable (1 bit field)

This field is coded as described in sub-clause 9.1.60.

P0 (4 bit field)

For description and encoding, see the Packet Uplink Assignment message in 3GPP TS 44.060.

PR_MODE (1 bit field)

For description and encoding, see the Packet Uplink Assignment message in 3GPP TS 44.060.

Start_First_UL_Data_Block (4 bit field)

This field identifies the uplink transmission opportunity corresponding to the assigned uplink coverage class (see the EC Packet Channel Description Type 2 IE described in sub-clause 10.5.2.85) that the mobile station is to use to start sending its first uplink RLC data block on the set of assigned uplink timeslots. The 1^st transmission opportunity occurs in 52 multiframe immediately following the last TDMA frame (i.e TDMA frame N) used for transmission EC IMMEDIATE ASSIGNMENT TYPE 4 message. See 3GPP TS 45.010 [35] for mobile station reaction time requirements applicable to receiving an assignment message. This field is coded as follows:

Bit

4 3 2 1

0 0 0 0 Use the 1^st transmission opportunity

0 0 0 1 Use the 2^nd transmission opportunity

0 0 1 0 Use the 3^rd transmission opportunity

.

.

.

1 1 1 1 Use the 16^th transmission opportunity

For CC1 the K^th transmission opportunity equals that for CC1 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC2 the K^th transmission opportunity equals that for CC2 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC3 the K^th transmission opportunity equals that for CC3 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC4 the K^th transmission opportunity equals that for CC4 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC5 the K^th transmission opportunity = the K^th set of 48 BTTI radio blocks on the assigned timeslots occurring after TDMA frame N+9. If the field EC_Reduced_PDCH_Allocation is set to 0 in the EC SYSTEM INFORMATION TYPE 2 message (see sub-clause 9.1.43q), the Kth set of 48 BTTI radio blocks occurs in B0 of the Kth 52-multiframe that occurs after TDMA frame N. If the field EC_Reduced_PDCH_Allocation is set to 1 the Kth set of 48 BTTI radio blocks occurs in B0 of the Kth pair of 52-multiframes that occurs after TDMA frame N wherein the first 52-multiframe of the pair is an even number (i.e. (TDMA FN div 52) mod 2 = 0).

Start_FN_Next_Data_Block (3 bit field)

This field identifies the gap (in coverage class specific transmission opportunities) between the last pre-allocated uplink radio block transmitted on assigned uplink timeslots and the next pre-allocated uplink radio block to be used for the uplink transmission. This field is coded as follows:

Bit

3 2 1

0 0 0 a gap of 1 transmission opportunity

0 0 1 a gap of 2 transmission opportunities

0 1 0 a gap of 3 transmission opportunities

.

.

.

1 1 1 a gap of 8 transmission opportunities

For CC1 a gap of K transmission opportunities equals that for CC1 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC2 a gap of K transmission opportunities equals that for CC2 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC3 a gap of K transmission opportunities equals that for CC3 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC4 a gap of K transmission opportunities equals that for CC4 specified in the EC IMMEDIATE ASSIGNMENT TYPE 2 message (see sub-clause 9.1.60 – Table 9.1.60.2).

For CC5 a gap of K transmission opportunities = K sets of 48 BTTI radio blocks on the assigned timeslots occurring immediately after the last set of 16 BTTI radio block used for the uplink transmission. If the field EC_Reduced_PDCH_Allocation is set to 0 in the EC SYSTEM INFORMATION TYPE 2 message (see sub-clause 9.1.43q), each 52-multiframe counts as a gap of one CC5 transmission opportunity. If the field EC_Reduced_PDCH_Allocation is set to 1 each pair of 52-multiframes counts as a gap of one CC5 transmission opportunity.