EP1058976A1 - Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps - Google Patents

Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps

Info

Publication number
EP1058976A1
EP1058976A1 EP99915542A EP99915542A EP1058976A1 EP 1058976 A1 EP1058976 A1 EP 1058976A1 EP 99915542 A EP99915542 A EP 99915542A EP 99915542 A EP99915542 A EP 99915542A EP 1058976 A1 EP1058976 A1 EP 1058976A1
Authority
EP
European Patent Office
Prior art keywords
burst
time
telecommunication
air interface
user data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99915542A
Other languages
German (de)
English (en)
Inventor
Erich Kamperschroer
Uwe Schwark
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP99915542A priority Critical patent/EP1058976A1/fr
Publication of EP1058976A1 publication Critical patent/EP1058976A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2618—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid code-time division multiple access [CDMA-TDMA]

Definitions

  • Telecommunication systems with wireless telecommunication between mobile and / or stationary transceivers are special message systems with a message transmission link between a message source and a message sink, in which for example base stations and mobile parts for message processing and transmission are used as transmitters and receivers 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 over the long-distance transmission path is wireless based on various message transmission methods Multiple use of the message transmission link FDM ⁇ (Frequency Division Multiple Access), TDMA (Time Division Multiple Access) and / or CDMA (Code Division Multiple Access) - eg . according to radio standards such as
  • FDM ⁇ Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • CDMA Code Division Multiple Access
  • the type of transmission according to (1) ... (3) is usually characterized by continuous (analog) signals, while the type of transmission according to (4) usually produces discontinuous signals (e.g. pulses, digital signals).
  • FIGURES 1 to 6 show:
  • FIGURE 1 "three-level structure" of a WCDMA / FDD air interface in the "downlink",
  • FIGURE 2 "three-level structure" of a WCDMA / FDD air interface in the "uplink",
  • FIGURE 3 "three-level structure" of a TDCDMA / TDD air interface
  • FIGURE 4 radio scenario with multiple channel utilization after frequency, / time, / code multiplex
  • FIG. 5 shows the basic structure of a base station designed as a transceiver
  • FIGURE 6 shows the basic structure of a mobile station which is also designed as a transceiver. 4
  • UMTS 3rd generation of mobile telephony or IMT-2000
  • IMT-2000 two sub-scenarios, for example according to Funkschau 6/98: R. Sietmann "Wrestling for the UMTS interface", pages 76 to 81.
  • the licensed coordinated mobile radio is based on WCDMA technology (ideband code division multiple access) and, as with GSM, is operated in FDD mode (Frequency Division Duplex), while in a second sub-scenario the unlicensed uncoded Ordinated mobile communications are based on TD-CDMA technology (Time Division Code Division Multiple Access) and, as with DECT, is operated in TDD mode (Frequency Division Duplex).
  • WCDMA ideband code division multiple access
  • GSM Global System for Mobile communications
  • FDD mode Frequency Division Duplex
  • the unlicensed uncoded Ordinated mobile communications are based on TD-CDMA technology (Time Division Code Division Multiple Access) and, as with DECT, is operated in TDD mode (Frequency Division Duplex).
  • the air interface of the telecommunication system contains the upward and downward direction of the telecommunication in accordance with the publication ETSI STC SMG2 UMTS-Ll, Tdoc SMG2 UMTS-Ll 1 63/98 : "UTRA Physical Layer Description FDD Parts" Vers. 0.
  • the respective multi-time frame MZR contains, for example, 72 time frames ZR, while each time frame ZR, for example, again has 16 time slots ZS1 ... ZS16.
  • the individual time slot ZS, ZS1 ... ZS16 (burst) has a pilot sequence PS with Npiiot bits for channel estimation with respect to the first physical channel DPCCH as a burst structure, a TPC sequence TPCS with N TPC bits for power control (Traffic Power Control) and a TFCI sequence TFCIS with N TFC ⁇ bits for specifying the transport format (Traffic Format Channel Indication) and with respect to the 5 second physical channel DPDCH a user data sequence NDS with N data bits.
  • WCDMA / FDD Systems from ETSI or ARIB - FIGURE 1 the first physical channel ["Dedicated Physical Control Channel (DPCCH)] and the second physical channel [" Dedicated Physical Data Channel (DPDCH)] are time-multiplexed, while in the "uplink "(Upward direction of telecommunications; radio connection from the mobile station to the base station) - FIGURE 2 - an I / Q multiplex takes place, in which the second physical channel DPDCH is transmitted in the I channel and the first physical channel DPCCH in the Q channel.
  • DPCCH Direct Physical Control Channel
  • DPDCH Dedicated Physical Data Channel
  • the air interface of the telecommunications system the document TSG RAN WG1 based in up and down direction of telecommunications according to (S1. 21): "3 rd Generation Partnership Project (3GPP) "Vers. 0. 0. 0. 1, 1999-01 again on the "three-level structure", consisting of the multi-time frame MZR, the time frame ZR and the time slots ZS, for all physical channels, which is shown in FIG. 3.
  • the respective multi-time frame MZR again contains, for example, 72 time frames ZR, while each time frame ZR, for example, again has the 16 time slots ZS1 ... ZS16.
  • ZS16 (burst) either has a first timeslot structure (burst structure) ZSS1, in accordance with the ARIB proposal, in the sequence consisting of a first useful data sequence NDS1 with N data ai bits, the pilot -Sequence PS with N pi ⁇ 0 t bits for channel estimation, the TPC sequence TPCS with N TPC bits for power control, the TFCI sequence TFCIS with N TFC ⁇ bits for specifying the transport format, a second user data sequence NDS2 and a protection time zone SZZ (guard period) with N GUard bits, or according to the ETSI proposal, a second time slot structure (burst structure) ZSS2, in the order consisting of the first user data sequence NDS1, a first TFCI sequence 6 TFCIS1, a midamble sequence MIS for channel estimation, a second TFCI sequence TFCIS2, the second user data sequence NDS2 and the protection time zone SZZ.
  • a first timeslot structure (burst structure) ZSS
  • FIGURE 4 shows e.g. based on a GSM radio scenario with e.g. two radio cells and base stations arranged therein (base transceiver station), a first base station BTS1 (transceiver) a first radio cell FZ1 and a second base station BTS2 (transceiver) omnidirectionally "illuminating" a second radio cell FZ2, and starting from the FIGURES 1 and 2 show a radio scenario with multiple channel utilization according to frequency / time / code multiplex, in which the base stations BTS1, BTS2 have an air interface designed for the radio scenario and have a plurality of mobile stations MSI ...
  • MS5 located in the radio cells FZ1, FZ2 Transceiver
  • the base stations BTS1, BTS2 are connected in a known manner (cf. GSM telecommunications system) to a base station controller BSC (BaseStation Controller) which takes over the frequency management and switching functions as part of the control of the base stations.
  • the base station controller BSC in turn is via a mobile switching center MSC
  • the mobile switching center MSC Mobile Switching Center with the higher-level telecommunications network, e.g. the PSTN (Public Switched Telecommunication Network).
  • the mobile switching center MSC is the administrative center for the telecommunications system shown. It takes over the complete call management and, with associated registers (not shown), the authentication of the telecommunications subscribers and the location monitoring in the network.
  • FIG. 5 shows the basic structure of the base station BTS1, BTS2 designed as a transceiver
  • FIG. 6 shows the basic structure of the base station, also as a 7 / Receiving device trained mobile station MS1 ... MS5 shows.
  • the base station BTS1, BTS2 takes over the sending and receiving of radio messages from and to the mobile station MS1..MS5, while the mobile station MS1 ... MS5 takes over the sending and receiving of radio messages from and to the base station BTS1, BTS2.
  • the base station has a transmitting antenna SAN and a receiving antenna EAN
  • the mobile station MS1 ... MS5 has an antenna ANT that can be controlled by an antenna switchover AU and is common for transmitting and receiving.
  • the base station BTS1, BTS2 receives, for example, at least one radio message FN with a frequency / time / code component from at least one of the mobile stations MS1 ... MS5 via the receive antenna EAN, while the mobile station MS1 ... MS5 in the downward direction (reception path) receives, for example, at least one radio message FN with a frequency / time / code component from at least one base station BTS1, BTS2 via the common antenna ANT.
  • the radio message FN consists of a broadband spread carrier signal with information modulated onto data symbols.
  • the received carrier signal is filtered in a radio receiving device FEE (receiver) and mixed down to an intermediate frequency, which in turn is subsequently sampled and quantized.
  • FEE radio receiving device
  • the signal After an analog / digital conversion, the signal, which has been distorted on the radio path by multipath propagation, is fed to an equalizer EQL, which largely compensates for the distortions (Stw.: Synchronization).
  • a channel estimator KS to estimate the transmission properties of the transmission channel TRC on which the radio message FN has been transmitted.
  • the transmission properties of the channel are specified in the time domain by the channel impulse response. So that the channel impulse response can be estimated, the radio FN sends or assigns special (in the present case from the mobile station MS1 ... MS5 or the base station BTS1, BTS2) special training information sequence in the form of a so-called midi.
  • a subsequent data detector DD common to all received signals, the individual mobile station-specific signal components contained in the common signal are equalized and separated in a known manner. After equalization and separation, the previously existing data symbols are converted into binary data in a symbol-to-data converter SDW. The original bit stream is then obtained from the intermediate frequency in a demodulator DMOD before the individual time slots are assigned to the correct logical channels and thus also to the different mobile stations in a demultiplexer DMUX.
  • the bit sequence obtained is decoded channel by channel in a channel codec KC.
  • the bit information is assigned to the control and signaling time slot or a voice time slot and - in the case of the base station (FIGURE 5) - the control and signaling data and the voice data for transmission to the base station controller BSC together for signaling and voice coding / decoding (Voice codec) handover the responsible interface SS, while - in the case of the mobile station (FIGURE 6) - the control and signaling data of a control and signaling unit STSE responsible for complete signaling and control of the mobile station and the voice data one for voice input and - output speech codec SPC are passed.
  • the speech data are stored in a predetermined data stream (for example 64 kbit / s stream in the network direction or 13 kbit / s stream from the network direction).
  • a predetermined data stream for example 64 kbit / s stream in the network direction or 13 kbit / s stream from the network direction.
  • the base station BTS1, BTS2 sends, for example, at least one radio message FN with a frequency / time / code component to at least one of the mobile stations MS1 ... MS5 via the transmitting antenna SAN, while the mobile station MS1 ... MS5 in the upward direction (transmission path) via the common antenna ANT, for example, sends at least one radio message FN with a frequency / time / code component to at least one base station BTS1, BTS2.
  • the transmission path begins at the base station BTS1, BTS2 in
  • FIGURE 5 with the fact that in the channel codec KC control and signaling data as well as voice data received from the base station controller BSC via the interface SS are assigned to a control and signaling time slot or a voice time slot and these are coded channel by channel into a bit sequence.
  • the transmission path begins at the mobile station MS1 ... MS5 in FIGURE 6 with the fact that in the channel codec KC speech data received from the speech codec SPC and control and signaling data received from the control and signaling unit STSE a control and signaling time slot or are assigned to a speech time slot and these are coded channel-wise into a bit sequence.
  • the bit sequence obtained in the base station BTS1, BTS2 and in the mobile station MS1 ... MS5 is in each case converted into data symbols in a data-to-symbol converter DSW. Subsequently, the data symbols are each in a spreading device SPE with a subscriber-specific one
  • the burst generator BG consisting of a burst composer BZS and a multiplexer MUX
  • BG consisting of a burst composer BZS and a multiplexer MUX
  • FSE transmitter
  • radio scenario shown in FIGURE 4 for public applications also for private applications e.g. home area, SOHO area; small office / home
  • uncoordinated operation in the unpaired frequency range of the UMTS scenario - for so-called home telecommunication systems (residential te- lecommunication systems) - the air interface must be designed accordingly.
  • uncoordinated operation in contrast to coordinated operation - such as in GSM systems - there is no "management" (no system intelligence) which coordinates or controls the allocation of the physical resources and thus the operation with respect to the preferably asynchronous stationary transceivers in the telecommunication system.
  • DECT systems Digital Enhanced (formerly: European) Cordless Telecommunication; see. Telecommunications Electronics 42 (1992) Jan. / Feb No. 1, Berlin, DE; U. Pilger "Structure of the DECT standard", pages 23 to 29 in connection with the ETSI publication ETS 3001 75-1... 9, October 1992 and the DECT publication of the DECT forum, February 1997, pages 1 bi s 16] with wireless telecommunications based on frequency and time division multiplexing between mobile and / or stationary transceivers.
  • DECT systems Digital Enhanced (formerly: European) Cordless Telecommunication; see. Telecommunications Electronics 42 (1992) Jan. / Feb No. 1, Berlin, DE; U. Pilger "Structure of the DECT standard", pages 23 to 29 in connection with the ETSI publication ETS 3001 75-1... 9, October 1992 and the DECT publication of the DECT forum, February 1997, pages 1 bi s 16] with wireless telecommunications based on frequency and time division multiplexing between mobile and / or stationary transceivers.
  • the object underlying the invention is to provide an air interface for home telecommunications systems with wireless, based on code and time division multiplex telecommunications between mobile and / or stationary transceivers, in which the burst structure of the air interface to the conditions in the Home telecommunications system is adapted for uncoordinated operation in the paired (FDD mode) or unpaired (TDD mode) frequency band in such a way that statements about the quality of the respective burst and, for example, criteria for handing over a telecommunications connection, so-called handover criteria, are possible .
  • FDD mode paired
  • TDD mode unpaired
  • the idea on which the invention is based is to design an air interface for home telecommunication systems with wireless telecommunication based on code and time division multiplexing between mobile and / or stationary transceivers with a special burst structure, in particular in front of a first one User data block and after a second user data block each a data field for sliding burst collision detection (sliding collision detection), between the user data blocks a training information sequence, the so-called midamble, for channel estimation and / or a synchronization field and between the second user data block and the data field for sliding Burst collision detection on e.g. data field designed as a CRC field are arranged for error detection.
  • a data field for sliding burst collision detection sliding collision detection
  • FIGURE 7 shows a special burst structure for the air interface of a home telecommunication system 12 wireless, based on code and time division multiplex telecommunication between mobile and / or stationary transceivers.
  • FIGURE 7 shows a special burst structure for the air interface of a home telecommunication system with wireless, code multiplex-based telecommunication between mobile and / or stationary transceivers, in the order in which a first data field for sliding burst collision detection (sliding collision detection) is shown.
  • DFI SCD DFI SCD.
  • a first user data block NDB1 a training information sequence, the so-called midamble, for channel estimation TIS and / or a synchronization field SYF
  • a second user data block NDB2 a data field designed, for example, as a CRC field for error detection DF C RC.
  • a second data field for sliding burst collision detection DF2 SCD and a protection time zone SZZ are arranged.
  • the two data fields for the sliding burst collision detection DF1 SCD and DF2 SC D contain information which is generated by a transmitting device and which is known to a receiving device.
  • the comparison of the information received from the data fields DF1 SC D and DF2 S D with the information originally sent and known to the receiving device serves as a detection criterion for a sliding burst collision detection.
  • a burst collision detection is thus possible even before the actual user information in the two user data blocks NDB1 and NDB2 is damaged by the burst collision.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Afin d'adapter la structure de salve de l'interface radio aux conditions en vigueur dans le système de télécommunication intérieur pour le fonctionnement non cordonné dans la plage de fréquences appariées (mode DRT) ou non appariées (mode DRF), de manière à permettre d'établir des propositions quant à la qualité de chaque salve et par ex. des critères pour atteindre une liaison de télécommunication, appelés critères de transfert, la structure de salve comprend dans la séquence de donnée, un premier champ de données pour une identification flottante de collision de salve (DF1SCD), un premier bloc de données utiles (NDB1), une séquence de données d'apprentissage, appelée mi-ambule, pour évaluer les canaux (TIS) et/ou un champ de synchronisation (SYF), un second bloc de données (NDB2), un champ de données par ex. sous forme de champ CRC pour identifier les erreurs (DFCRC), un second champ de données pour une identification flottante de collision de salves (DF2SCD) et une zone temporelle de protection (SZZ).
EP99915542A 1998-02-27 1999-03-01 Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps Withdrawn EP1058976A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99915542A EP1058976A1 (fr) 1998-02-27 1999-03-01 Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP98103520 1998-02-27
EP98103520 1998-02-27
EP99915542A EP1058976A1 (fr) 1998-02-27 1999-03-01 Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps
PCT/EP1999/001319 WO1999044314A1 (fr) 1998-02-27 1999-03-01 Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps

Publications (1)

Publication Number Publication Date
EP1058976A1 true EP1058976A1 (fr) 2000-12-13

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EP99915542A Withdrawn EP1058976A1 (fr) 1998-02-27 1999-03-01 Interface radio pour systemes de telecommunication interieurs sans fil, a telecommunication fondee sur le code et le mutiplexage dans le temps

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Country Link
EP (1) EP1058976A1 (fr)
CN (1) CN1298580A (fr)
AU (1) AU3409099A (fr)
WO (1) WO1999044314A1 (fr)

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JP2004511954A (ja) * 2000-10-10 2004-04-15 インターデイジタル　テクノロジー　コーポレーション 時分割複信受信機用の自動利得制御
KR100594111B1 (ko) * 2004-03-12 2006-06-30 삼성전자주식회사 주파수 밴드별 다중 코딩을 사용하는 광대역 무선 접속시스템에서 데이터 전송 방법 및 시스템
CN100362776C (zh) * 2004-09-24 2008-01-16 华为技术有限公司 对接口链路进行重新同步的方法
CN1972455B (zh) * 2006-11-30 2012-02-22 中兴通讯股份有限公司 一种移动多媒体广播系统的容错方法

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Publication number Priority date Publication date Assignee Title
GB2309855B (en) * 1996-01-31 2000-01-12 Nokia Mobile Phones Ltd Radio receivers and methods of operation

Non-Patent Citations (1)

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Title
See references of WO9944314A1 *

Also Published As

Publication number Publication date
CN1298580A (zh) 2001-06-06
AU3409099A (en) 1999-09-15
WO1999044314A1 (fr) 1999-09-02

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