Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2000-12-29
2004-11-09
Vu, Huy D. (Department: 2665)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S524000
Reexamination Certificate
active
06816507
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention pertains to wireless telecommunication systems and in particular to an air interface for telecommunications systems using wireless telecommunication between mobile and/or stationary transmitting/receiving units.
2. Description of the Related Art
Telecommunications systems using wireless telecommunication between mobile and/or stationary transmitting/receiving units (appliances) are specific message systems using a message transmission path between a message source and a message sink, and in which, for example, base transceiver stations and mobile units are used as transmitting and receiving appliances for message processing and transmission and in which,
1) the message processing and message transmission can take place in a preferred transmission direction (simplex mode) or in both transmission directions (duplex mode),
2) the message processing is preferably digital,
3) the message transmission takes place over the long-distance transmission path without wires on the basis of various message transmission methods for multiple use of the message transmission path 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 [Digital Enhanced (previously: European) Cordless Telecommunication; see
Nachrichtentechnik Elektronik
42 (1992) [Information Technology Electronics 42 (1992)] Jan./Feb. No. 1, Berlin, DE; U. Pilger “Struktur des DECT-Standards” [Structure of the DECT Standard], pages 23 to 29 in conjunction with the ETSI publication ETS 300175-1 . . . 9; Oct. 1992 and the DECT publication from the DECT Forum, February 1997, pages 1 to 16], GSM [Groupe Spéciale Mobile or Global System for Mobile Communication; see
Informatik Spektrum
14 [Information Spectrum 14] (1991) June, No. 3, Berlin, DE; A. Mann: “
Der GSM
-
Standard—Grundlage für digitale europäische Mobilfunknetze
” [The GSM Standard—basis for digital European mobile radio networks], pages 137 to 152 in conjunction with the publication telekom praxis [Telecom Practice] 4/1993, P. Smolka “
GSM
-
Funkschnittstelle—Elemente und Funktionen
” [GSM air interface—elements and functions], pages 17 to 24], UMTS [Universal Mobile Telecommunication System; see (1):
Nachrichtentechnik Elektronik
[Information Technology Electronics], 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 für die dritte Mobilfunkgeneration
” [Concept of a CDMA mobile radio system with joint detection for the third mobile radio generation]; (2):
Nachrichtentechnik Elektronik
[Information Technology Electronics], 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 Electronics, 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
[Telecom Practice], 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 CDMA—an originally military technology conquers the civil area]; (6):
IEEE Personal Communications
, February 1995, pages 48 to 53; P. G. Andermo, L. M. Ewerbring: “
A CDMA
-
Based Radio Access Design for UMTS
”; (7):
ITG Fachberichte
124 [ITG Specialist Reports] (1993), Berlin,
Offenbach: VDE Verlag ISBN
3-8007-1965-7, pages 67 to 75; Dr. T. Zimmermann, Siemens A G: “
Anwendung von CDMA in der Mobilkommunikation
” [Use of CDMA in mobile communication]; (8):
telcom report
16, (1993), Issue 1, pages 38 to 41; Dr. T. Ketseoglou, Siemens A G and Dr. T. Zimmermann, Siemens A G: “
Effizienter Teilnehmerzugriff für die
3
. Generation der Mobilkommunikation—Vielfachzugriffsverfahren CDMA macht Luftschnittstelle flexibler
” [Efficient subscriber access for the 3rd generation of mobile communication—the CDMA multiple access method makes the air interface more flexible]; (9):
Funkschau [Radio Show]
6/98: R. Sietmann “
Ringen um die UMTS-Schnittstelle
” [Ring around the UMTS interface], pages 76 to 81] 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 information and the physical representation (signal). Despite a message having the same information, different signal forms may occur. Thus, for example, a message relating to a subject may be transmitted
(1) in the form of a picture,
(2) as a spoken word,
(3) as a written word,
(4) as an encrypted word or picture
The types of transmission in categories (1) through (3) are in this case normally characterized by continuous (analog) signals, while the type of transmission in category (4) normally comprises discontinuous signals (for example pulses, digital signals).
According, for example, to the document Funkschau [Radio Show] 6/98: R. Sietmann “
Ringen um die UMTS
-
Schnittstelle
” [Ring around the UMTS interface], pages 76 to 81 there are two scenario elements in the UMTS scenario (3rd mobile radio generation or IMT-2000). In a first scenario element, the licensed coordinated mobile radio is based on a WCDMA technology (Wideband Code Division Multiple Access) and, as in the case of GSM, is operated using the FDD mode (Frequency Division Duplex), while, in a second scenario element, the unlicensed uncoordinated mobile radio is based on a TD-CDMA technology (Time Division-Code Division Multiple Access) and, as in the case of DECT, is operated using the TDD mode (Frequency Division Duplex).
For WCDMA/FDD operation of the universal mobile telecommunications system, the air interface of the telecommunications system in each case contains a number of physical channels in the uplink and downlink telecommunications directions in accordance with the document ETSI STC SMG2 UMTS-L1, Tdoc SMG2 UMTS-L1 163/98
: “UTRA Physical Layer Description FDD Parts
” Vers. 0.3, May 29, 1998 of which a first physical channel, the so-called Dedicated Physical Control CHannel DPCCH and a second physical channel, the so-called Dedicated Physical Data CHannel DPDCH, [lacuna] with respect to a “three-layer structure” composed of 720 ms long (T
MZR
=720 ms) super frames MZR, 10 ms long (T
FZR
=10 ms) time frames (radio frames) ZR and 0.625 ms long (T
ZS
=0.625 ms) time slots ZS, which are illustrated in
FIGS. 1 and 2
. Each super frame MZR contains, for example, 72 time frames ZR, while each time frame ZR in turn has, for example, 16 time slots ZS
1
. . . ZS
16
. As a burst structure for the first physical channel DPCCH, the individual time slot ZS, ZS
1
. . . ZS
16
(burst) has a pilot sequence PS with a number N
PILOT
of bits (N
PILOT
bits) for channel estimation, a TPC sequence TPCS with a number N
TPC
of bits (N
TPC
bits), in particular for rapid power control (Traffic Power Control), and a TFCI sequence TFCIS with a number N
TFCI
of bits (N
TFCI
bits) for traffic format channel indication, which indicate the bit rate, the type of service, the type of error protection coding, etc., and, for the second physical channel DPDCH, has a user data sequence NDS with a number N
DATA
of user da
Jarbot Lutz
Kunz Albrecht
Landenberger Holger
Nasshan Markus
Bell Boyd & Lloyd LLC
Siemens Aktiengesellschaft
Volper Thomas E.
Vu Huy D.
LandOfFree
Air interface for telecommunications systems with cordless... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air interface for telecommunications systems with cordless..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air interface for telecommunications systems with cordless... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3356630