* * *
Flexible and Scalable Solution Enables Rapid WiMax Network Deployment
(7 December 2008 Hong Kong) Comba Telecom Systems Holdings Limited ( Comba or the Group ,
Hong Kong stock code: 2342), a leading wireless enhancement solutions provider, officially introduced its
new WiMAX-compatible remote radio unit (RRU) to the global market. The RRU is a highly integrated base
station RF unit which can be detached from the BBU (Base Band Unit) and fed with baseband signals
through optical fiber. Its high power efficiency design and flexible configuration dramatically reduces
CAPEX and improves deployment time for WiMAX network rollout.
A key feature of Comba s RRU is that it is designed for easy customization for different BBU suppliers in
order to expedite integration. The RRU supports point-to-point, star and daisy-chained connection with the
BBU to provide a flexible system topology.
In addition, it s compact, IP65 weatherproof and convection cooling design allows it to operate in various
environments from tower tops to underground tunnels. These flexible and scalable design features
minimizes the feeder cable requirements for base station systems and mitigates the challenges network
operators face in site acquisition and power supply issues.
Mr. John Cheng, Comba s Director of Product Marketing, Wireless Enhancement, said We are pleased to
bring this latest innovation to the market. The RRU addresses two very important issues of the WiMAX
space: speed to market and cost effectiveness.
Cheng further added We are committed to helping our business partners and customers to realize
effective returns on their network investments. Comba is actively researching and developing products for
current and developing standards such as UMTS, WiMAX and LTE. The WiMAX RRU is the latest addition
to Comba s RRU technology which includes solutions for WCDMA, CDMA2000 and TD-SCDMA.
Key WiMAX RRU specifications:
Digital optical interface compliance with OBSAI RP3-01 v4.0 or CPRI v3.0
Customizable for third party BBUs (Base Band Units)
Operates in 2.3-2.7GHz supporting variable channel bandwidths
RF performance exceeds specifications defined in the WiMAX Forum System Profile
Independent RF channels (TRx) support various multi-antenna architecture: 2x2 MIMO, 4x4 MIMO,
4x4 AAS
SDR (software defined radio) enables key parameters to be software configurable (central
frequency, channel bandwidth, output power, TDD ratio)
Support flexible system topology: point-to-point, star and daisy-chain
Built-in self-diagnostic, protection, alarm & error report functions
Compact size with minimal footprint facilitates rapid deployment
For a complete set of technical specifications and further details, contact any of Comba s offices or email
sales@comba-telecom.com
End
Flexible and Scalable Solution Enables Rapid WiMax Network Deployment
(7 December 2008 Hong Kong) Comba Telecom Systems Holdings Limited ( Comba or the Group ,
Hong Kong stock code: 2342), a leading wireless enhancement solutions provider, officially introduced its
new WiMAX-compatible remote radio unit (RRU) to the global market. The RRU is a highly integrated base
station RF unit which can be detached from the BBU (Base Band Unit) and fed with baseband signals
through optical fiber. Its high power efficiency design and flexible configuration dramatically reduces
CAPEX and improves deployment time for WiMAX network rollout.
A key feature of Comba s RRU is that it is designed for easy customization for different BBU suppliers in
order to expedite integration. The RRU supports point-to-point, star and daisy-chained connection with the
BBU to provide a flexible system topology.
In addition, it s compact, IP65 weatherproof and convection cooling design allows it to operate in various
environments from tower tops to underground tunnels. These flexible and scalable design features
minimizes the feeder cable requirements for base station systems and mitigates the challenges network
operators face in site acquisition and power supply issues.
Mr. John Cheng, Comba s Director of Product Marketing, Wireless Enhancement, said We are pleased to
bring this latest innovation to the market. The RRU addresses two very important issues of the WiMAX
space: speed to market and cost effectiveness.
Cheng further added We are committed to helping our business partners and customers to realize
effective returns on their network investments. Comba is actively researching and developing products for
current and developing standards such as UMTS, WiMAX and LTE. The WiMAX RRU is the latest addition
to Comba s RRU technology which includes solutions for WCDMA, CDMA2000 and TD-SCDMA.
Key WiMAX RRU specifications:
Digital optical interface compliance with OBSAI RP3-01 v4.0 or CPRI v3.0
Customizable for third party BBUs (Base Band Units)
Operates in 2.3-2.7GHz supporting variable channel bandwidths
RF performance exceeds specifications defined in the WiMAX Forum System Profile
Independent RF channels (TRx) support various multi-antenna architecture: 2x2 MIMO, 4x4 MIMO,
4x4 AAS
SDR (software defined radio) enables key parameters to be software configurable (central
frequency, channel bandwidth, output power, TDD ratio)
Support flexible system topology: point-to-point, star and daisy-chain
Built-in self-diagnostic, protection, alarm & error report functions
Compact size with minimal footprint facilitates rapid deployment
For a complete set of technical specifications and further details, contact any of Comba s offices or email
sales@comba-telecom.com
End
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