Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1997016046) VARIABLE LENGTH BURST TRANSMISSION OVER THE PHYSICAL LAYER OF A MULTILAYER TRANSMISSION FORMAT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/016046 International Application No.: PCT/US1996/016923
Publication Date: 01.05.1997 International Filing Date: 23.10.1996
Chapter 2 Demand Filed: 16.05.1997
IPC:
H04B 3/06 (2006.01) ,H04L 1/00 (2006.01) ,H04L 12/28 (2006.01) ,H04Q 11/04 (2006.01) ,H04L 1/18 (2006.01) ,H04L 12/70 (2013.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
3
Line transmission systems
02
Details
04
Control of transmission; Equalising
06
by the transmitted signal
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12
Data switching networks
28
characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
Q
SELECTING
11
Selecting arrangements for multiplex systems
04
for time-division multiplexing
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1
Arrangements for detecting or preventing errors in the information received
12
by using return channel
16
in which the return channel carries supervisory signals, e.g. repetition request signals
18
Automatic repetition systems, e.g. van Duuren system
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12
Data switching networks
70
Packet switching systems
Applicants:
GENERAL INSTRUMENT CORPORATION [US/US]; 101 Tournament Drive Horsham, PA 19044, US (AllExceptUS)
KOLZE, Thomas, J. [US/US]; US (UsOnly)
ANDERSON, Steven, E. [US/US]; US (UsOnly)
HOU, Victor, T. [US/US]; US (UsOnly)
Inventors:
KOLZE, Thomas, J.; US
ANDERSON, Steven, E.; US
HOU, Victor, T.; US
Agent:
LIPSITZ, Barry, R.; 755 Main Street Monroe, CT 06468, US
Priority Data:
60/006,04224.10.1995US
Title (EN) VARIABLE LENGTH BURST TRANSMISSION OVER THE PHYSICAL LAYER OF A MULTILAYER TRANSMISSION FORMAT
(FR) TRANSMISSION PAR SALVES DE LONGUEUR VARIABLE SUR LA COUCHE PHYSIQUE D'UN SYSTEME DE TRANSMISSION MULTICOUCHE
Abstract:
(EN) Apparatus is provided for communicating data packets in variable length bursts over a physical layer in a multilayer data communication scheme. Each burst contains information data (40, 50, 60, 64, 74, 78, 82) and overhead (30, 32, 34, 36, 38, 42, 44, 62, 66, 76, 80, 84). The overhead includes forward error control (FEC) data (42, 62, 66, 76, 80, 84). Different burst modes (Figs. 2, 3, 4, 5) are provided to enable a trade-off to be made between bandwidth efficiency and data transmission robustness. The burst modes provide different combinations of modulation (such as QPSK and 16-QAM), symbol rates, FEC coding levels and frame and preamble structure. The apparatus is particularly suitable for use in upstream communications over hybrid fiber coax cable television plants.
(FR) Cette invention concerne un appareil de transmission de paquets de données en salves de longueur variable sur la couche physique d'un système de transmission de données multicouche. Chaque salve contient des données d'information (40, 50, 60, 64, 74, 78, 82) et des données de service (30, 32, 34, 36, 38, 42, 44, 62, 66, 76, 80, 84). Ces données de service comportent des données (42, 62, 66, 76, 80, 84) servant à la correction des erreurs sans voie de retour (FEC). L'invention concerne différents modes de transmission par salves (FIG.2, 3, 4, 5) qui permettent de parvenir à un compromis entre indice d'occupation spectrale et fiabilité de la transmission des données. Les modes de transmission par salves assurent différentes combinaisons de modulation (de type QPSK et 16-QAM), de débits de symboles, de niveaux de codage FEC et de structure de trame et de préambule. Ledit appareil convient particulièrement aux transmissions montantes sur des réseaux hybrides de télévisions reliées par câbles coaxiaux à fibres optiques.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19981829IL124183BRPI9611138EP0857400JP2000508128CN1203013
CA2235373KR1019990067037AU1996074665