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Chapter 1 - System Description
1.1
Introducing BreezeMAX
BreezeMAX 3500 is Alvarion's WiMAX platform for the licensed 3.5 GHz frequency
band. It leverages Alvarion's market-leading knowledge of Broadband Wireless
Access (BWA), industry leadership, proven field experience, and core technologies
including many years of experience with OFDM technology.
Built from the ground up based on the IEEE 802.16/ETSI HIPERMAN standards,
BreezeMAX 3500 is designed specifically to meet the unique requirements of the
wireless Metropolitan Area Network (MAN) environment and to deliver broadband
access services to a wide range of customers, including residential, SOHO, SME
and multi-tenant customers. Its Media Access Control (MAC) protocol was
designed for point-to-multipoint broadband wireless access applications,
providing a very efficient use of the wireless spectrum and supporting difficult
user environments. The access and bandwidth allocation mechanisms
accommodate hundreds of subscriber units per channel, with subscriber units
that may support different services to multiple end users.
The system uses OFDM radio technology, which is robust in adverse channel
conditions and enables operation in non line of sight links. This allows easy
installation and improves coverage, while maintaining a high level of spectral
efficiency. Modulation and coding can be adapted per burst, ever striving to
achieve a balance between robustness and efficiency in accordance with
prevailing link conditions.
BreezeMAX supports a wide range of network services, including Internet access
(via IP or PPPoE tunneling), VPNs and Voice over IP. Service recognition and
multiple classifiers that can be used for generating various service profiles enable
operators to offer differentiated SLAs with committed QoS for each service profile.
BreezeMAX products are currently available in the 3.4 – 3.6 GHz frequency band,
as shown in Table 1-1. The actual operating frequencies used by the system can
be configured according to applicable radio regulations, license conditions and
specific deployment considerations.
Series (band)
3.5a
3.5b
* The 3.5 GHz CPEs support the full range. The base station equipment support
either band 3.5a or band 3.5b.
2
Table 1-1: BreezeMAX Frequency Bands
Uplink Frequency
3.3995 to 3.4535 GHz
3.450 to 3.500 GHz
Downlink Frequency
3.4995 to 3.5535 GHz
3.550 to 3.600 GHz
BreezeMAX System Manual
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