7.7.34 Quality of Service (QoS) Profile
29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS
The Quality of Service (QoS) Profile shall include the values of the defined QoS parameters.
Octet 4 carries the allocation/retention priority octet that is defined in 3GPP TS 23.107. The allocation/retention priority octet encodes each priority level defined in 3GPP TS 23.107 as the binary value of the priority level.
The allocation/retention priority field shall be ignored by the receiver if:
– the QoS profile is pre-Release ’99.
– the QoS profile IE is used to encode the Quality of Service Requested (QoS Req) field of the PDP context IE.
Octets 5 – n (QoS Profile Data field) are coded according to 3GPP TS 24.008 [5] Quality of Service IE, octets 3-m. The bit rate and extended bit rate fields in the QoS Profile Data require converting values in bits per second to kilo bits per second when the bit rate values are received from the PCRF. If such conversions result in fractions, then the value of bit rate and extended bit rate fields shall be rounded upwards. The minimum length of the field QoS Profile Data is 3 octets; the maximum length is 254 octets.
Clause 11.1.6 "Error handling" defines the handling of the case when sent QoS Profile information element has a Length different from the Length expected by the receiving GTP entity.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type = 135 (Decimal) |
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2-3 |
Length |
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4 |
Allocation/Retention Priority |
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5-n |
QoS Profile Data |
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Figure 48: Quality of Service (QoS) Profile Information Element