9.1.67 EC DOWNLINK ASSIGNMENT TYPE 2
3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 17TS
This message is sent on the EC-CCCH by the network to assign downlink packet resources to a mobile station that has enabled EC operation, supports uplink coverage class CC5 and uplink coverage class CC5 is assigned.
Message type: EC DOWNLINK ASSIGNMENT TYPE 2
Significance: dual
Direction: network to mobile station
Table 9.1.67.1: EC DOWNLINK ASSIGNMENT TYPE 2 message content
< EC Downlink Assignment message Type 2 content > ::= < Message Type : bit (4) > < Used DL Coverage Class: bit (2) > { 0 | 1 < EC Page Extension : bit (4) > } < TLLI : bit (32) > < EC Packet Channel Description Type 3 : bit (15) > — This is a new parameter in EC DA type 2 vs. EC DA type 1. < EC Downlink Allocation : < EC Downlink Allocation struct >> <spare padding> ; |
< EC Downlink Allocation struct > ::= < Timing Advance : bit (6) > < STARTING_DL_TIMESLOT : bit (3) > < Downlink_TFI_Assignment : bit (5) > < TIMESLOT_MULIPLICATOR : bit (2) > < STARTING_UL_TIMESLOT_OFFSET (2) > < GAMMA : bit (5) > < ALPHA Enable : bit (1) > { 0 | 1 < P0 : bit (4) > < PR_MODE : bit (1) > } ; |
Table 9.1.67.2: EC DOWNLINK ASSIGNMENT TYPE 2 message details
Message Type (4 bit field) This field indicates the type of message sent on the EC-CCCH (see Table 10.4.4) |
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. |
TLLI (32 bit field) This field is the binary representation of a TLLI. The coding of TLLI is left open for each administration using the structure specified in 3GPP TS 23.003. |
EC Packet Channel Description Type 3 (15 bit field) This information element is coded as described in sub-clause 10.5.2.88. |
Timing Advance (6 bit field) This field is coded as described in sub-clause 9.1.60 |
STARTING_DL_TIMESLOT (3 bit field) This field is coded as described in sub-clause 9.1.64. |
Downlink_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. |
TIMESLOT_MULTIPLICATOR (2 bit field) |
STARTING_UL_TIMESLOT_OFFSET (2 bit field) |
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. |