Delivery order

No

The application should handle packet reordering.

Maximum SDU size (octets)

1400

Maximum size of IP packets

Delivery of erroneous SDUs

No

Residual BER

10^-5

Reflects the desire to have a medium level of protection to achieve an acceptable compromise between packet loss rate and speech transport delay and delay variation.

SDU error ratio

7*10^-3

A packet loss rate of 0.7 % per wireless link is in general sufficient for speech services

Transfer delay (ms)

130 ms

Indicates maximum delay for 95^th percentile of the distribution of delay for all delivered SDUs between the UE and the PS domain during the lifetime of a bearer service. Permits the derivation of the RAN part of the total transfer delay for the radio access bearer. This attribute allows RAN to set transport formats and H-ARQ/ARQ parameters such as the discard timer.

Guaranteed bitrate for uplink (kbps)

25

The total bit-rate of AMR5.9 including IP/UDP/RTP overhead and 5 % for RTCP.

Maximum bitrate for uplink (kbps)

31

The total bit-rate of AMR12.2 including IP/UDP/RTP overhead and 5 % for RTCP.

Guaranteed bitrate for downlink (kbps)

25

The total bit-rate of AMR5.9 including IP/UDP/RTP overhead and 5 % for RTCP.

Maximum bitrate for downlink (kbps)

31

The total bit-rate of AMR12.2 including IP/UDP/RTP overhead and 5 % for RTCP.

Allocation/Retention priority

subscribed value

Indicates the relative importance to other radio access bearers. It should be the next lower value to the priority of the signalling bearer.

Source statistics descriptor

‘speech’