11.2.12 Packet Polling Request

04.603GPPGeneral Packet Radio Service (GPRS)Mobile Station (MS) - Base Station System (BSS) interfaceRadio Link Control / Medium Access Control (RLC/MAC) protocolRelease 1999TS

This message is sent on the PCCCH or PACCH by the network to the mobile station to solicit a PACKET CONTROL ACKNOWLEDGEMENT message from the mobile station.

Message type: PACKET POLLING REQUEST

Direction: network to mobile station

Classification: non-distribution message

Table 11.2.12.1: Packet POLLING REQUEST information elements

< Packet Polling Request message content > ::=

< PAGE_MODE : bit (2) >

{ { 0 < Global TFI : < Global TFI IE > >

| 10 < TLLI : bit (32) >

| 110 < TQI : bit (16) > }

{ < TYPE_OF_ACK : bit (1) >

< padding bits >

! < Non-distribution part error : bit (*) = < no string > > }

! < Address information part error : bit (*) = < no string > > }

! < Distribution part error : bit (*) = < no string > > ;

Table 11.2.12.2: Packet POLLING REQUEST information element details

PAGE_MODE (2 bit field)
This field is defined in sub-clause 12.20.

TQI (16 bit field)
This field is defined in sub-clause 12.17.

TLLI (32 bit field)
This field is defined in sub-clause 12.16.

Global TFI
This information element contains the TFI of the mobile station’s downlink TBF or uplink TBF. This field is defined in sub-clause 12.10.

TYPE_OF_ACK
This field indicates the format of the PACKET CONTROL ACKNOWLEDGEMENT message requested from the mobile station by the PACKET POLLING REQUEST message.

0 PACKET CONTROL ACKNOWLEDGEMENT message format shall be sent as four access bursts
1 PACKET CONTROL ACKNOWLEDGEMENT message format shall be an RLC/MAC control block