11.2.11 Packet PDCH Release

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 PACCH by the network to notify all mobile stations listening to that PDCH that one or more PDCHs will be immediately released and become unavailable for packet data traffic.

Message type: PACKET PDCH RELEASE

Direction: network to mobile station

Classification: distribution message

Table 11.2.11.1: Packet PDCH RELEASE information elements

< Packet PDCH Release message content > ::=

< PAGE_MODE : bit (2) >

{ 1 < TIMESLOTS_AVAILABLE : bit (8) > }

< padding bits >

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

Table 11.2.11.2: Packet PDCH RELEASE information element details

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

TIMESLOTS_AVAILABLE (8 bit field)
This information field indicates the timeslots assigned for GPRS use on the current MAIO or ARFCN. Bit 8 indicates the status of timeslot 0, bit 7 indicates the status of timeslot 1, etc.

0 Timeslot is not assigned
1 Timeslot is assigned

NOTE: If the bit preceding the parameter TIMESLOTS_AVAILABLE is received = 0 a distribution part error should be generated by the mobile station. To allow compatibility with early GPRS mobile stations in Release 97 such mobile stations may interpret this message, if received with the bit preceding the parameter TIMESLOTS_AVAILABLE equal to 0, as a command to release the timeslot on which the message was received.