Page 3 of 13
4.2 Enhanced Support of Voice over IP
Implementation of support for DRAP (Dynamic Resources Allocation Protocol) in the Access Unit
enables it to communicate with Alvarion’s Gateways that support this protocol. This enables limiting the
number of simultaneous voice sessions in the cell through admission control, maintaining high quality
of service for voice calls. When combined with the improved processing capability for small packets
described above, availability of a high number of voice calls in each sector can be ensured, while
maintaining excellent quality of service. In addition, DRAP support enables identification of Voice and
Networking gateways that exist in the cell, thus supporting efficient management of gateways that
support the DRAP protocol.
4.3 Wireless Link Prioritization
The existing Traffic Prioritization mechanism takes care of prioritization of the traffic transmitted by
each unit. The Wireless Link Prioritization mechanism complements the Traffic Prioritization
mechanism by prioritizing traffic to/from different SUs, ensuring that transmissions of high priority traffic
have precedence over transmissions of low priority traffic.
The Wireless Link Prioritization feature further enhances support of VoIP calls, enabling appropriate
handling of toll quality VoIP (high priority) together with best effort data (low priority).
Note that the Wireless Link Prioritization mechanism is applicable only for VoIP or other traffic that can
be prioritized base on VLAN, IP ToS/DSCP or UDP/TCP Port.
The Wireless Link Prioritization mechanism is an optional (under license) feature (not available for
AUS units).
4.4 Increased Performance Level through Improved Distance Learning
Mechanism
A special Per SU Distance Learning mechanism that is controlled by the AU enables each SU to adapt
its Acknowledge timeout to its actual distance from the AU, thus minimizing delays in the wireless link
and increasing overall performance level.
4.5 Enhanced Prioritization with prevention of Low Priority Traffic Starvation
The Low Priority Traffic Minimum Percent feature ensures that a certain amount of the traffic is
reserved to low priority packets. This prevents complete starvation of low priority traffic when there is a
high demand for high priority traffic.
ALVARION LTD.
21A HABARZEL STREET,
TEL AVIV, 69710,
ISRAEL
TEL: 972-3-6456262
FAX: 972-3-6456222
HTTP://WWW.ALVARION.COM
(8 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels