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CABSINET
Cellular Access to Broadband Services and Interactive Television The CABSINET project will design, build and demonstrate a working interactive cellular TV architecture at 40 and/or 5.8GHz, capable of delivering both broadcast and multimedia services. A low-power cellular wireless, coupled with in-band interactive return links offers a potentially attractive solution especially for the 'last mile' end user access.
CABSINET will offer a very flexible interactive channel and the ability to deliver broadband services. An innovative 40/5.8 GHz in-band wireless return link will use Direct Sequence Spread Spectrum (DSSS) and will maximise the interference immunity.
The CABSINET system will allow the migration from asymmetric to near-symmetric broadband interactivity.
CABSINET RESULTS The IBC'98 show demonstrated the use of the CABSINET system for using Video On Demand over the two layer network. The innovation is the nomadic nature of the terminal, which can be moved within the local area without breaking communication. This demonstration uses COFDM at both 40 & 5.8GHz
General project information
Information about projects working on Interactive Multimedia Broadcast
Service description
Application description
Technical characterisation of service and/or application
Business issues
Deployment plans
General project information (up)
- Contact person for the contribution:
David Penny
CRLDawley Road, Middlesex,
UK, UB3 1HH
Tel.:+44 (0) 181 848 6652
Fax.:+44 (0) 181 848 6543
dpenny@crl.co.uk
- Name/number of project:
CABSINET (AC236)
- Research programme and source(s) of funding ACTS
- Start and end date of project:
June 1996 - September 1999
- Total resources in Man.Months:
806
- Summary of project goals:
Interactive MMDS using a Two Layer Network CABSINET will design, build and demonstrate a working interactive cellular TV architecture at 40 and 5.8GHz, capable of the delivering both broadcast and other multimedia services. It will examine cost-effective consumer transceiver technology at both 5.8 and 40 GHz. It will compare the performance of this system with identified market requirements and will derive a exploitation plan for such services in the short and medium term.
- Major activities and milestones:
Trials will start in September 1998.
- Expected Results:
CABSINET will provide a proven and flexible architecture for supporting interactive cellular TV and multimedia services. The system will offer a robust means of transmitting large amounts of data over the air but without the conventional microwave needs of 'Line of Sight'. The system will stimulate the market for 'last mile' installation of wireless cable services as well as offer an alternative radio data network.
Information about projects working on Interactive Multimedia Broadcast (up)
- What is the unique selling point of the application or service?
CABSINET provides a flexible in-band return channel and the ability to deliver broadband services to nomadic, terminals which will be freely re-located. It also provides the ability to deliver broadband services within a building.
- Is your project linked to other ACTS field trials of MM-Broadcast?
The CABSINET project has utilised the results from the DVBird project as well as liasing with the CRABS project, wherever possible.
Service description (up)
- What services are supported by the project?
Digital audio and video broadcast, Data transmission, Interactivity, Electronic programme guide.
- What is your vision of the service in a mature form?
CABSINET will provide a fully interactive near symmetric video and multimedia service.
Application description (up)
- What applications are developed and realised by the project?
CABSINET is using applications on the Thomcast MARS Server.
Technical characterisation of service and/or application (up)
- Which technology area is addressed?
DVB/MPEG2, DAVIC Return Path, OFDM at 40GHz
- How is the signal distributed, transmitted and received?
Transmission and distribution via both 40 GHz and 5.8GHz wireless links.
- How is the signal coded, modulated and multiplexed?
The signal is modulated using QPSK and COFDM.
- How have you realised the backchannel (as applicable)?
An in-band wireless return link at 40 and 5.8GHz is used. A combination of TDMA and CDMA spread spectrum techniques gives resilience against interference and the ability to transmit within buildings.
- What about system integration (using DAB/GSM, DVB/ADSL, etc.)? LMDS/MMDS/DVB-T
- How can you describe the user interface?
DVB receivers, set-top boxes, PCS
- Does your application / service comply with standards?
Which standards? DVB-MS (To fixed Terminals) DVB-T (To nomadic Terminals) and the upcoming DVB-MT
Business issues (up)
- What is the benefit of the application/service for broadcasters, infrastructure providers and end users?
The competitive installation costs of the infrastructure for certain areas can increase sales and hence revenue. The platform provides interactivity and broadband services in a flexible and future-proof form.
- What is the target market?
Infrastructure providers, i.e. cable operators, Telecommunication operators.
- Does the new application/service replace or enhance an older version?
CABSINET will enhance services and applications running on LMDS and CATV.
- When will the application/service be sold commercially?
The full commercial availability is expected during 2000. Initial return link versions may be available during 1999.
Deployment plans (up)
- How long do you expect is the time to reach the market?
2001
 Taken from Bulletin No. 9 |
