9.1.21f Packet Assignment

3GPP44.018GSM/EDGE Radio Resource Control (RRC) protocolMobile radio interface Layer 3 specificationRelease 17TS

This message is sent on the FACCH by the network to the mobile station to change the channel configuration to a multislot configuration with CS and PS connections when neither timing adjustment nor reallocation of the CS timeslot is needed. See table 9.1.21f.1.

Message type: PACKET ASSIGNMENT

Significance: dual

Direction: network to mobile station

Table 9.1.21f.1: PACKET ASSIGNMENT message content

IEI	Information element	Type / Reference	Presence	Format	Length
	RR management Protocol Discriminator	Protocol Discriminator 10.2	M	V	1/2
	Skip Indicator	Skip Indicator 10.3.1	M	V	1/2
	Packet Assignment Message Type	Message Type 10.4	M	V	1
	GPRS broadcast information	GPRS broadcast information 10.5.2.14d	M	LV	7 – n
22	Description of the Uplink Packet Channel Assignment	RR Packet Uplink Assignment 10.5.2.25c	O	TLV	3 – n
23	Description of the Downlink Packet Channel Assignment	RR Packet Downlink Assignment 10.5.2.25d	O	TLV	3 – n
12	Frequency List C2	Frequency List 10.5.2.13	C	TLV	4 – 132
13	Mobile Allocation C2	Mobile Allocation 10.5.2.21	C	TLV	3 – 10
14	Channel Description C2	Channel Description 3 10.5.2.5c	O	TV	3
24	Description of the Downlink Packet Channel Assignment Type 2	RR Packet Downlink Assignment Type 2 10.5.2.25e	C	TLV	3 – n
6D	Extended TSC Set	Extended TSC Set 10.5.2.82	C	TV	2

9.1.21f.1 RR Packet Uplink Assignment and RR Packet Downlink Assignment IEs

These information elements are optional, but at least one of them shall be present.

9.1.21f.2 (void)

9.1.21f.3 Frequency List C2, Mobile Allocation C2 and Description of the Downlink Packet Channel Assignment Type 2

These information elements may be included to assign packet resources on a second radio frequency channel, which does not include the dedicated resource, to a mobile station supporting Downlink Dual Carrier (see 3GPP TS 44.060).

If the Channel Description C2 IE is present, the Description of the Downlink Packet Channel Assignment Type 2 IE shall be present and provides the description of the downlink packet resources for both carriers C1 and C2. In this case, the Description of the Downlink Packet Channel Assignment IE shall not be included.

If the Channel Description C2 IE is present and indicates frequency hopping, one and only one of the following information elements shall be present:

– Mobile Allocation C2 IE

– Frequency List C2 IE

If the Mobile allocation C2 IE is present, then the network must ensure that the mobile station has received in a previous message the proper reference cell frequency list.

If the Channel Description C2 IE is not included then the Description of the Downlink Packet Channel Assignment Type 2 IE if present shall be considered as an unnecessary IE in the message.

If the Channel Description C2 IE is not included or is included but does not indicate frequency hopping, then any of the Mobile Allocation C2 or Frequency List C2 IEs if present shall be considered as an unnecessary IE in the message.

9.1.21f.4 Extended TSC Set

If the message is sent to a mobile station that indicates support for extended TSC sets (see 3GPP TS 24.008 [79]) this information element may be included to provide TSC related information for the assigned radio resources. In the absence of this information element the TSC related information provided by the Channel Description 3 IE shall apply.