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Telecommunications

Advanced telecommunications technologies, developed by Xinwei Group, allow improving the quality of communication and telecom services, introduce innovations in management, increase profitability a...

Telecommunications

Advanced telecommunications technologies, developed by Xinwei Group, allow improving the quality of communication and telecom services, introduce innovations in management, increase profitability and competitiveness of business. The company projects on implementing innovative wireless communication systems have been successfully realized in various countries around the world.

Mobile Broadband Multimedia Networks

The Ukrainian operator ProSat uses the Xinwei Group products and solutions for launching the Ukrainian mobile broadband multimedia networks, which provides:

· emergency professional services;

· secure connection;

· communications to remote areas;

· elemetry data collection and transmission;

· corporate network.

Technological solutions of the project are based on the revolutionary technology McWiLL® , developed by Xinwei Group.

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Technologies and Standards

McWiLL® Broadband Wireless Access System

Core Technologies: CS-OFDMA, Smart Antenna, Nulling, Dynamic Channel Allocation, Make-before-break Handoff.

Major Services: Fixed Phone, Mobile Phone, Mobile Voice, Data Transmission.

Major Products: Terminals (CPE, etc.), BTS (general macro BTS, etc.), Core Network (access aggregation and trunking soft switch systems, etc.), Application Platform (integrated message center).

Major Features: Exclusive Frequency Band (406.5 MHz-409 MHz, 1785 MHz-1805 MHz), Max Throughput of 15Mbps (5 MHz Frequency Band), Common Frequency Networking, Roaming, Voice and Data Handoff, TDD, Interface to NGN.

Spatial Nulling Technology

Simple Beamforming: McWiLL® smart antennas point the main lobe of beamforming towards the target terminal and point smaller side lobe of beamforming toward the external interference source to significantly reduce the interference level.

Spatial Nulling Beamforming: McWiLL® smart antennas point the main lobe of beamforming towards the target terminal and point a spatial null of beamforming at the external interference source to completely cancel the interference. Spatial nulling can cancel the interference with power 100 times as high as the signal power.

Spatial Nulling Technology

Supporting N=1 Deployment

Spatial Nulling Beamforming : McWiLL® smart antennas can also point the main lobe of receive and transmit beamforming at the target terminal in the cell and in the meantime point a spatial null of beamforming at the interfering terminal in the neighbor cell to cancel the co-channel interference and support N=1 deployment.

Smart Antennas

The Smart antenna system contains antenna array hardware and digital signal processing software. The antenna array comprises of multiple spatially separated antennas. The digital signal processing software processes the baseband signal sent by a target terminal and received by the antenna array and calculates its spatial signature and performs receive transmit beamforming toward the target terminal. Smart antenna beamforming can significantly increase the equivalent transmit power and receive sensitivity to greatly increase the communication coverage. For example, an 8-element smart antenna system can have 82=64 times more equivalent transmit power than a single antenna system. Since different terminals may be located in different places, the smart antenna system will perform different beamforming to different terminals, leading to significant reduction of interference among different terminals and increase of system capacity or data throughput.

Application of the project

Multiple-Access Scheme: CS-OFDMA

CS-OFDMA integrates the merits of CDMA (more suitable for narrowband communications) and OFDMA (more suitable for broadband communications), making it an all-in-one communication system supporting both fixed and mobile voice and broadband data.

Dynamic Channel Assignment

The neighboring co-channel base stations use the interface detection scheme and dynamic channel assignment to coordinate channel assignment of multiple interfering terminals, leading to drastically reduction of co-channel interference among different cells and greatly increase the system capacity and reliability.

Make-Before-Break Handoff

• The terminal maintains communication with both base stations during the handoff process.

• The terminal breaks the old link only after the new link is established reliably.

• The terminal performs handoff only after the layer 2 tunnel is established, making it possible for zero loss during the handoff.

• Layer 2 tunneling allows PDAs or laptops to keep the same IP address during the handoff.

• Layer 2 tunneling also allows the McWiLL® base station to interface with any standard routers without complicated mobile IP features.

Stages of the McWiLL® System Development

V1  SCDMA Fixed Wireless Access System

Commercialized 1995-1998

Supports fixed voice access, and belongs to WLL equipment.

V2  SCDMA Mobile Wireless Access System

Commercialized 1999-2001

Supports Multi-BTS networking and mobile voice, and has realized regional mobility.

V3 SCDMA Integrated Wireless Access System

Commercialized 2002-2003

Supports mobile voice, SMS, low-speed data services and nationwide mobility. 400/1800 MHz SCDMA wireless access system standard is listed in China national communication standards.

V4 Mc-SCDMA Fixed Broadband Wireless Access System

Commercialized 2004-2005

On the basis of V3, V4 uses multi-carrier and high-order modulation technologies to form a MC-SCDMA system, supporting fixed broadband wireless data access services at 12 Mbps/5 MHz.

V5 McWiLL®Broadband Wireless Access System

Commercialized 2006-2007

Core Technologies: CS-OFDMA, Smart Antenna, Nulling, Dynamic Channel Allocation, Make-before-break Handoff, Major Services: Fixed Phone, Mobile Phone, Mobile Voice, Data Transmission. Major Products: Terminals (CPE, etc.), BTS (general macro BTS, etc.), Core Network (access aggregation and trunking soft switch systems, etc.), Application Platform (integrated message center). Major Features: Exclusive Frequency Band (406.5 MHz-409 MHz, 1785 MHz-1805 MHz), Max Throughput of 15 Mbps (5 MHz Frequency Band), Common Frequency Networking, Roaming, Voice and Data Handoff, TDD, Interface to NGN System Architecture: A flat and all-IP architecture, Scenarios: Public and private networks.

V6 McWiLL®Broadband Multimedia Trunking Radio System

 Commercialized 2008-2012

Core Technologies: Channel Sharing, Self-relay, Ultra-distance Great Doppler Wireless Transmission, Energy-conservation, Encryption, Major Services: Trunking Voice, Data Multicast and Broadcast, Video Conference, Multimedia Trunking, BTS Positioning combined with GPS. Major Products: Terminals (multimedia trunking intelligent terminals, etc.), BTS (ruggedized macro BTS, etc.), Core Network (V5 product software update, etc.), Application Platform (video service platform, etc.). Major Features: Concurrence of Multimedia Services including trunking, data, video, etc. , Two-way Authorization, Encryption and Multi-broadcast and Trunking Service Scenarios: All-IP service platform supporting fixed network and mobile Ad-hoc network, mine tunnel network architecture, special communications applications.

V7  McWiLL®SAG Integrated Broadband Multimedia Trunking Radio System

R&D 2010-2015

Core Technologies: SDMA/MIMO, MBSFN, Adaptive Frequency Hopping, Cloud Computing, Ad-Hoc Networking, Heterogeneous Network (WiFi, Air Interface for Satellite Link). Major Services: Mobile Satellite Voice, Satellite Broadband Data Access, Satellite Multimedia Trunking Dispatch, SAG Integrated Communications. Major Products: BTS with max RF Bandwidth of 20MHz, Satellite Terminals, Multimode Converged Terminals, MIMO terminal. Major Features: N*1MHz networking (N=1,2…20), SAG integrated service platform architecture via WiFi/PDT/ McWiLL®/LTE.

V8 McWiLL®Advanced Evolution System            

R&D 2012-2017

Core Technologies: Carrier Aggregation, Multi-antenna Transmission Featuring Multipoint Coordination, Frequency Spectrum Sharing based on Cognitive Radio, other channel access technologies for special services, Enhanced Heterogeneous Network (LTE-A), Enhanced Ad-Hoc Networking, Constellation Network. Major Services: Integrated Info Application, Enhanced Cloud Service Major Features: Global coverage of constellation network, Terrestrial link spectrum utility rate of 15bit/s/Hz, FDD networking, N*1MHz networking (N=1,2…100), System Architecture supported by multiple frequency bands: Mobile satellite communication constellation system, SAG integrated info application system architecture.

Standards

1999: TD-SCDMA, whose core intellectual property rights are owned by Xinwei Group, became an international third-generation mobile communication technology standard.

2006: SCDMA wireless broadband access technology independently developed by Xinwei Group was officially recognized as China’s communication standard.

2010: McWiLL® technology independently developed by Xinwei Group was recognized as an international standard of mobile broadband wireless access by ITU.

Partners

UKRAINE HOUSE The platform of cooperation between China and Ukraine
TIANXIA LINK The Center for Contemporary China
NGO Silk Link A B2B2G-platform for business and political cooperation in the framework of the New Silk Road initiative

Сontacts

Contacts

Address

32/2 Moskovska St.,
Kyiv, 01010, Ukraine

PHONE/fax

+38 (044) 221-81-42

+38 (044) 229-20-82

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