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1. (WO1998051017) ARRANGEMENTS AND METHOD RELATING TO HANDLING OF DIGITAL SIGNALS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/051017 International Application No.: PCT/SE1998/000739
Publication Date: 12.11.1998 International Filing Date: 23.04.1998
Chapter 2 Demand Filed: 27.11.1998
IPC:
H03M 13/27 (2006.01) ,H04B 1/707 (2011.01) ,H04B 7/26 (2006.01) ,H04L 1/00 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
M
CODING, DECODING OR CODE CONVERSION, IN GENERAL
13
Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
27
using interleaving techniques
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
69
Spread spectrum techniques
707
using direct sequence modulation
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
24
for communication between two or more posts
26
at least one of which is mobile
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
Applicants:
TELEFONAKTIEBOLAGET LM ERICSSON [SE/SE]; S-126 25 Stockholm, SE
Inventors:
CARLSSON, Roland; SE
KARLSSON, Torbjörn; SE
Agent:
BERGENTALL, Annika; Cegumark AB P.O. Box 53047 S-400 01 Göteborg, SE
Priority Data:
9701655-402.05.1997SE
Title (EN) ARRANGEMENTS AND METHOD RELATING TO HANDLING OF DIGITAL SIGNALS
(FR) SYSTEMES ET PROCEDE CONCERNANT LA GESTION DES SIGNAUX NUMERIQUES
Abstract:
(EN) The present invention relates to an arrangement and a method respectively for handling a digital data signal comprising a number of data bits which is transported in a channel, at least the phase of which varies. The arrangement comprises transmitting means (310) comprising interleaving means (302) and receiving means (320) comprising deinterleaving means (316). Means are provided for dividing each data bit into a number of chips and in the interleaving means (302) said chips are interleaved. The transmitting means (310) comprises means for transmitting the data signal and a pilot signal. In the receiving means (320) channel estimation means (314) are provided for performing a channel estimation using the pilot signal. The receiving means (320) further comprises compensating means (315) for compensating the signal for the phase variation and deinterleaving means (316) for deinterleaving the chips of the compensated signal.
(FR) L'invention concerne un système et un procédé permettant la gestion d'un signal de données numériques transporté dans un canal. Ce signal comprend un certain nombre de bits de données et au moins sa phase varie. Le système comprend un moyen d'émission (310) comportant un moyen d'entrelacement (302) et un moyen de réception (320) comprenant un moyen de désentrelacement (316). Des moyens permettent de diviser chaque bit de données en un certain nombre de fragments. Ces fragments sont entrelacés dans le moyen d'entrelacement (302). Le moyen d'émission (310) comprend un moyen destiné à émettre le signal de données et un signal pilote. Dans le moyen de réception (320), un moyen d'estimation (314) du canal permet de réaliser une estimation de canal à l'aide du signal pilote. Le moyen de réception (320) comprend également un moyen de compensation (315) permettant de compenser le signal en termes de variation de phase et un moyen de désentrelacement (316) permettant de désentrelacer les fragments du signal compensé.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, 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:
EP0974204JP2001524288 AU1998074585