Multiframe structure and handling protocol for a telecommunication network
US5848070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multiframe structure is adapted to transmit narrowband telephony signals over a broadband cable link (BCL) carrying also video or television signals. The telephony transmission occurs according to classical telephony protocols such as the channel associated signalling (CAS) or the common channel signalling (CCS) protocols, which are mapped into the multiframe structure. The multiframe is transmitted according to the time division multiple access (TDMA) technique and each frame thereof has 40 time slots (TS00-TS39) carrying bursts of data. The frames include time slots carrying signalling bursts (S01-S30; S01-S04) of telephony signalling information and time slots carrying traffic bursts (D01-D30, C01-C36) of telephony traffic data. For the CCS, the time slots (TS00-TS03) carrying signalling bursts (S01-S04) are grouped within the frames so as to form a wideband common channel, whilst for the CAS, time slots (TS04, TS09, TS14, . . . , TS39) carrying signalling bursts are separated by four time slots carrying traffic bursts (D01-D30) and are distributed over all the frames of the multiframe structure on a periodic basis. The multiframe handling protocol is adapted to the above mult…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.