Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2000-04-27
2004-05-25
Pham, Chi (Department: 2667)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
Reexamination Certificate
active
06741583
ABSTRACT:
Transmitting and receiving appliances (transmitters and receivers) are used in message systems having a message transmission path between a message source and a message sink for message processing and transmission, in which appliances
1) the message processing and message transmission can take place in a preferred transmission direction (simplex operation) or in both transmission directions (duplex operation),
2) the message processing is analog or digital,
3) the message transmission via the long-distance transmission path is wire-based or is carried out without wires (for example by radio transmission) on the basis of various message transmission methods FDMA (Frequency Division Multiple Access), TDMA (Time Division Multiple Access) and/or CDMA (Code Division Multiple Access)—for example in accordance with radio standards such as DECT, GSM, WACS or PACS, IS-54, IS-95, PHS, PDC etc. [see IEEE Communications Magazine, January 1995, pages 50 to 57; D. D. Falconer et al.: “Time Division Multiple Access Methods for Wireless Personal Communications”].
“Message” is a generic term which covers both the content (information) and the physical representation (signal). Despite a message having the same content—that is to say the same information different signal forms may occur. Thus, for example, a message relating to one item may be transmitted
(1) in the form of a picture,
(2) as the spoken word,
(3) as the written word,
(4) as an encrypted word or picture. transmission type in (1) . . . (3) is in this case normally characterized by continuous (analog) signals, while the transmission type in (4) normally consists of discontinuous signals (for example pulses, digital signals).
Based on this general definition of a message system, the invention relates to a method for wire-free telecommunication, in particular having a CDMA, FDMA and TDMA multiple access component as claimed in the precharacterizing clause of patent claim 1.
Methods for wire-free telecommunication are used in telecommunications systems as are presented and described in the following documents (1):
Nachrichtentechnik Elektronik [Electronic information technology], Berlin
45, 1995, Issue 1, pages 10 to 14 and Issue 2, pages 24 to 27; P. Jung, B. Steiner: “Konzept eines CDMA-Mobilfunksystems mit gemeinsamer Detektion fur die dritte Mobilfunkgeneration” [Concept of a CDMA mobile radio system with joint detection for the third generation]; (2):
Nachrichtentechnik Elektronik [Electronic information technology], Berlin
41, 1991, Issue 6, pages 223 to 227 and page 234; P. W. Baier, P. Jung, A. Klein: “CDMA—ein günstiges Vielfachzugriffsverfahren für frequenzselektive und zeitvariante Mobilfunkkanäle” [CDMA—a useful multiple-access method for frequency-selective and time-variant mobile radio channels]; (3): IEICE Transactions on
Fundamentals of Electonics, Communications and Computer Sciences
, Vol. E79-A, No. 12, December 1996, pages 1930 to 1937; P. W. Baier, P. Jung: “
CDMA Myths and Realities Revisited
”; (4): IEEE Personal Communications, February 1995, pages 38 to 47; A. Urie, M. Streeton, C. Mourot: “
An Advanced TDMA Mobile Access System for UMTS
”; (5): telekom praxis, 5/1995, pages 9 to 14; P. W. Baier: “Spread-Spectrum-Technik und CDMA—eine ursprünglich militärische Technik erobert den zivilen Bereich” [Spread spectrum technology and CMDA—an originally military technology takes over the civil area]; (6): IEEE Personal Communications, February 1995, pages 48 to 53; P. G. Andermo, L. M. Ewerbring: “
An CDMA-Based Radio Access Design for UMTS
”; (7): ITG Fachberichte [
ITG Specialist Reports
] 124 (1993), Berlin, Offenbach: VDE Verlag ISBN 3-8007-1965-7, pages 67 to 75; Dr. T. Zimmermann, Siemens AG: “Anwendung von CDMA in der Mobilkommunikation,” [
Use of CDMA for mobile communication
]; (8): telcom report 16, (1993), Issue 1, pages 38 to 41; Dr. T. Ketseoglou, Siemens AG und Dr. T. Zimmermann, Siemens AG: “Effizienter Teilnehmerzugriff für die 3. Generation der Mobilkommunikation—Vielfachzugriffsverfahren CDMA macht Luftschnittstelle flexibler” [Efficient subscriber access for 3rd generation mobile communication—multiple-access methods CDMA makes the radio interface more flexible], are referred to as the future third-generation radio telecommunications scenario, based on the prospect of a Universal Mobile Telecommunications System (UMTS).
The second generation radio telecommunications scenario are currently governed, in the microcell and macrocell area, by the GSM-specific radio telecommunications system based on the FDMA/TDMA/FDD transmission principle (Frequency Division Duplex) [Global System for Mobile Communication; see (1): Informatik Spektrum [Information technology spectrum] 14 (1991) June, No. 3, Berlin, DE; A. Mann: “Der GSM-Standard—Grundlage für digitale europäische Mobilfunknetze” [The GSM Standard—the basis for digital European mobile radio networks], pages 137 to 152; (2): R. Steele: Mobile Radio Communications, Pentech Press, 1992 (Reprint 1994), Chapter 8: The Pan-European Digital Cellular Mobile Radio System—known as GSM, pages 677 ff.; (3): telekom praxis 4/1993, P. Smolka: “GSM-Funkschnittstelle—Elemente und Funktionen” [GSM radio interface—elements and functions], pages 17 and 24] and, in the picocell area, by the DECT telecommunications system based on the FDMA/TDMA/TDD transmission principle (Time Division Duplex) [Digital Enhanced (previously: European) Cordless Telecommunication; see (1): Nachrichtentechnik Elektronik [Electronics information technology] 42 (1992) January/February No. 1, Berlin, DE; U. Pilger “Struktur des DECT-Standards” [Structure of the DECT Standard], pages 23 to 29 in conjunction with ETSI Publication ETS 300175-1 . . . 9, October 1992; (2): telecom report 16(1993), No. 1, J. H. Koch: “Digitaler Komfort für schnurlose Telekommunikation—DECT-Standard eröffnet Nutzungsgebiete” [Digital convenience, for cordless telecommunications—the DECT Standard opens up new fields of use], pages 26 and 27; (3): tec 2/93—The technical magazine from Ascom “Wege zur universellen mobilen Telekommunikation” [Approaches to universal mobile telecommunications], pages 35 to 42; (4): Philips Telecommunication Review Vol. 49, No. 3, September 1991, R. J. Mulder: “DECT, a universal cordless access system”; (15): WO 93/21719 (
FIGS. 1
to
3
with corresponding description)]
REFERENCES:
patent: 5481533 (1996-01-01), Honig et al.
patent: 5539730 (1996-07-01), Dent
patent: 5648967 (1997-07-01), Schulz
patent: 5793757 (1998-08-01), Uddenfeldt
patent: WO 93/21719 (1993-10-01), None
Tero Ojanpera et al., “Frames-Hybrid Multiple Access Technology”, IEEE International Symposium on spread Spectrum Techniques & Application, (1996), pp. 320-324.
Nachrichtentech, Elektronik, Berlin 45, (1995), P.Jung et al., Konzept eines CDMA-Mobilfunksystems mit gemeinsamer Detektion für die dritte Mobilfunkgeneration, Teil 1, pp. 10-14 and Teil 2, pp. 24-27.
IEEE Communications Magazine, Jan. 1995, David D. Falconer et al, Time Division Multiple Access Methods for Wireless Personal Communications, pp. 50-57.
Nachrichtentech, Elektronik, Berlin 41, (1991), Baier et al., “CDMA —ein günstiges Vielfachzugriffs-verfahren für frequenzselektive und zeitvariante Mobilfunkkanäle”, pp. 223-227 & 234.
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E79-A, No. 12, (1996), Baier, et al., “CDMA Myths and Realities Revisited”, pp. 1930-1937.
IEEE Personal Communications, (1995), Urie, et al., “An Advanced TDMA Mobile Access Systems for UMTS”, pp 38-47.
Telekom praxis, May 1995, Baier, “Spread-Spectrum-Technik und CDMA—eine ursprünglich militärische Technik erobert den zivilen Bereich”, pp. 9-14.
IEEE Personal Communications, (1995),Andermo et al., “An CDMA-Based Radio Access Design for UMTS”,pp. 48-53.
ITG Fachberichte 124 (1993) Berlin Offenbach: VDE Verlag ISBN 3-8007-1965-7, pp. 67-75; Dr. T. Zimmermann, S
Klein Anja
Nasshan Markus
Boakye Alexander O.
Pham Chi
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