11.2.8b Packet Uplink Dummy Control Block

3GPP44.060General Packet Radio Service (GPRS)Mobile Station (MS) - Base Station System (BSS) interfaceRadio Link Control / Medium Access Control (RLC/MAC) protocolRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This message is sent on the PACCH from the mobile station to the network when the mobile station has no other block to transmit. In Iu mode, it is also sent on FACCH, SACCH and SDCCH.

Message type: PACKET UPLINK DUMMY CONTROL BLOCK

Direction: mobile station to network

Table 11.2.8b.1: Packet UPLINK DUMMY CONTROL BLOCK information elements

< Packet Uplink Dummy Control Block message content > ::=

< TLLI / G-RNTI : bit (32) >

{ null | 0 bit ** = < no string > — Receiver compatible with earlier release

| 1 — Additions in Rel-5 :
{ 0 | 1 < G-RNTI extension : bit (4) > }

< padding bits > } ;

Table 11.2.8b.2: Packet UPLINK DUMMY CONTROL BLOCK information element details

TLLI / G-RNTI (32 bit field)
This field contains the TLLI / G-RNTI of the mobile station. This field is encoded as defined in sub-clause 12.16.

G-RNTI extension (4 bit field)

This field contains the extra 4 bits of the G-RNTI not included in the TLLI / G-RNTI field which are necessary to provide a unique identifier in Iu mode.