WO1999044323A2 - Systemes de telecommunication a telecommunication sans fil, fondee sur le code et le multiplexage dans le temps - Google Patents

Systemes de telecommunication a telecommunication sans fil, fondee sur le code et le multiplexage dans le temps Download PDF

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Publication number
WO1999044323A2
WO1999044323A2 PCT/EP1999/001321 EP9901321W WO9944323A2 WO 1999044323 A2 WO1999044323 A2 WO 1999044323A2 EP 9901321 W EP9901321 W EP 9901321W WO 9944323 A2 WO9944323 A2 WO 9944323A2
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WO
WIPO (PCT)
Prior art keywords
time slot
channel
time
telecommunication
code
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PCT/EP1999/001321
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German (de)
English (en)
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WO1999044323A3 (fr
Inventor
Erich Kamperschroer
Uwe Schwark
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Siemens Aktiengesellschaft
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Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to AU35967/99A priority Critical patent/AU3596799A/en
Priority to EP99917817A priority patent/EP1072108A2/fr
Priority to JP2000533971A priority patent/JP2002505549A/ja
Publication of WO1999044323A2 publication Critical patent/WO1999044323A2/fr
Publication of WO1999044323A3 publication Critical patent/WO1999044323A3/fr

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    • 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
    • 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 FDMA (Frequency Division Multiple Access), TDMA (Time Division Multiple Access) and / or CDMA (Code Division Multiple Access) - e.g. B. according to radio standards such as
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communication
  • A.Mann "The GSM standard - basis for digital European mobile radio networks", pages 137 to 152 in connection with the publication telekom praxis 4/1993, P. Smolka "GSM radio interface - elements and functions" , Pages 17 to 24]
  • 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 7 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-layer structure" a TDCDMA / TDD air interface ⁇ spot
  • 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
  • FIG. 6 shows the basic structure of a mobile station which is also designed as a transceiver
  • FIGURE 7 shows a DECT transmission time frame.
  • 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 radio based on TD-CDMA technology (Time Division-Code Division Multiple Access) and, as with DECT, operated in TDD mode (Frequency Division Duplex).
  • the air interface of the telecommunication system in the up and down direction of the telecommunication contains: "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 second physical channel DPDCH a user data sequence NDS with No a ta 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 time slot structure (burst structure) ZSS1, in accordance with the ARIB proposal, in the sequence consisting of a first user data sequence NDS1 with N data ⁇ 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 Gu ard 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 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 time slot structure (burst structure) ZSS1 in
  • 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 use of channels according to frequency / time / code multiplex, in which the base stations BTS1, BTS2 have an air interface designed for the radio scenario with a plurality of mobile stations MSI ... located in the radio cells FZ1, FZ2.
  • MS5 transmit
  • the base stations BTS1, BTS2 are known
  • the base station controller BSC BaseStation Controller
  • the base station controller BSC is in turn connected via a mobile switching center MSC ⁇ (Mobile Switching Center) to the higher-level telecommunications network, e.g. the PSTN (Public Switched Telecommunications Network).
  • the mobile switching center MSC is the administration center for the telecommunications system shown. It takes over the complete call management and, with associated registers (not shown), the authentication of the telecommunication participants 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 / 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 switch AU for transmission and reception.
  • 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 ... receives in the waste • forward direction (reception path) via the common antenna ANT, for example, at least one radio message FN with a frequency / time / code component of at least one base station BTS1, BTS2 MS5.
  • 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
  • a training information sequence in the form of a supplement to the channel estimation is added to the spread data symbols in the burst composer BZS and the burst information obtained in this way is set to the correct time slot in the multiplexer MUX.
  • the burst obtained is each modulated at high frequency in a modulator MOD and converted to digital / analog before the signal obtained in this way is emitted as a radio message FN via a radio transmission device FSE (transmitter) on the transmission antenna SAN or the common antenna ANT.
  • FSE radio transmission device
  • TDD Time Division Duplex
  • a TDD telecommunication system having such a transmission time frame is e.g. the well-known DECT system [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 to 16].
  • DECT system 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 to 16].
  • FIGURE 7 shows a DECT transmission time frame with a time duration of 10 ms, consisting of 12 “downlink” time slots and 12 “uplink” time slots.
  • a free time slot pair with a “downlink” time slot ZS D ON and an “uplink” is used in accordance with the DECT standard "Time slot ZSUP selected, in which the distance between the" downlink "-
  • Time slot ZS D OWN and the "uplink" time slot ZSUP also According to the DECT standard, half the length (5 ms) of the DECT transmission time frame is.
  • FDD (Frequency Division Duplex) telecommunication systems are telecommunication systems in which the time frame, consisting of several time slots, is transmitted in a first frequency band for the downlink direction and in a second frequency band for the uplink direction.
  • GSM Global System for Mobile Communication
  • A. Mann "The GSM standard - basis for digital European mobile radio networks", pages 137 to 152 in connection with the publication telekom praxis 4/1993, P. Smolka "GSM radio interface - elements and functions", pages 17 to 24].
  • the air interface for the GSM system knows a variety of logical channels called bearer services, e.g. an AGCH channel (Access Grant CHannel), a BCCH channel (BroadCast CHannel), a FACCH channel (Fast Associated Control CHannel), a PCH channel (Paging CHhannel), an RACH channel (Random Access CHannel) and a TCH channel (Traffic CHannel), whose respective function in the air interface, for example in the publication Informatik Spektrum 14 (1991) June, No.
  • AGCH channel Access Grant CHannel
  • BCCH channel BroadCast CHannel
  • FACCH channel Fest Associated Control CHannel
  • PCH channel Paging CHhannel
  • RACH channel Random Access CHannel
  • TCH channel Traffic CHannel
  • WCDMA / FDD operation and TDCDMA / TDD operation are to be used together in the UMTS scenario (3rd generation of mobile telephony or IMT-2000), efficient use of the logical channels and the transmission path services Most (bearer handling) in the air interface for telecommunication systems with wireless, based on code and time division based telecommunication between mobile and / or stationary transceivers is desirable.
  • the object on which the invention is based is to improve this "bearer handling" compared to previous solutions for telecommunication systems with wireless telecommunication based on code and time multiplex between mobile and / or stationary transceivers.
  • FIGURES 8 and 9. show:
  • FIG. 8 shows a comparison with the time frames in FIGS. 1 to 3 and the DECT transmission time frame in FIG. 7 with regard to the number of time slots (modified) TDD time-division multiplex frames,
  • FIGURE 9 on the basis of the time-division multiplex frame according to FIGURE 8, a channel allocation table for channels with a frequency, code and time-division multiplex component
  • FIGURE 8 shows, starting from the time frames in FIGS. 1 to 3 and the DECT transmission time frame in FIGURE 7, a (modified) TDD time-division multiplex frame ZMR with eight time slots ZS ⁇ 1 ... ZS ⁇ 8, the first four time slots ZS 1. ..ZS for the downward transmission direction DL and the second four time slots ZS x 5 ... ZS ⁇ 8 for the upward transmission direction UL are provided.
  • the number of time slots has been reduced from "16" according to FIGURES 1 and 3 to "8" only for the sake of illustration for the channel allocation table in FIGURE 9 and has no restrictive, limiting influence on the invention.
  • the number of time slots - like the other physical resources (eg code, frequency, etc.) - can be varied to a greater or lesser extent depending on the telecommunications system.
  • FIGURE 9 shows, based on the time-division multiplex frame according to FIGURE 8, a channel allocation table for channels with a frequency, code and time-division multiplex component.
  • the time division multiplex component of this table comprises the time slots ZS ⁇ 1 ... ZS with the TDD division according to FIGURE 8.
  • the frequency division multiplex component comprises 12 frequencies FR1 ... FR12, while the code multiplex component 8 codes (pseudo random signals) C1 ... C8 contains.
  • FIGURE 9 shows a preferred embodiment, according to which on the first frequency FR1 in the downward transmission direction in a first time slot ZS ⁇ l as a fixed (agreed) first selection time slot and in the upward transmission direction in a fifth time slot ZS ⁇ 5 as a fixedly specified (agreed) second selection time slot, preferably all codes C1 ... C8 are used for the bundling of the transmission path services mentioned. It is of course also possible to use less or, if more than these eight codes are available, also more codes.
  • the codes C1 ... C8 in the first time slot ZS 1 are divided so that one code for the control channel for signaling and the AGCH channel, another code for the BCCH channel and the PCH channel and the remaining six codes are reserved for the TCH channel, while the codes C1 ... C8 are divided in the fifth time slot ZS ⁇ 5 so that a code for the RACH channel is one further code for the FACCH channel for handover indication and the remaining ones six codes are reserved or assigned for the TCH channel.
  • the spectral efficiency and / or the performance of the telecommunications system can also be further improved if - as shown in FIGURE 9 - for different connection scenarios, a first connection scenario VSZ1, a second connection scenario VSZ2, a third connection scenario VSZ3, one fourth connection scenario VSZ4 and a fifth connection scenario VSZ5, in each case several bidirectional TDD telecommunication connections, for which the physical resource “code, frequency, time” in the downlink and uplink transmission direction are partly identical and partly unequally occupied.
  • the binding scenario VSZ1 ...
  • VSZ5 includes, for example, a first group of telecommunication connections G1, which is marked with an ascending and descending hatching, and a second group of telecommunication connections G2, which is marked with a descending hatching, each group containing at least one bidirectional ionic telecommunication connection.
  • the first group of telecommunication connections G1 occupies six codes on a second frequency FR2 in the downward transmission direction in a second time slot ZS r 2 - a first code C1, a second code C2, a third code C3, a fourth code C4, one fifth code C5 and a sixth code C6 - and in the upward transmission direction in a sixth time slot ZS 6 again the six codes C1 ... C6, while the second group of telecommunications connections G2 on the second frequency FR2 in the downward transmission direction in a fourth time slot ZS ⁇ 4 den first code Cl and in the upward transmission direction in an eighth time slot ZS ⁇ 8 again occupies the first code Cl.
  • the fourth time slot ZS and the second time slot ZS 2 are "downlink" time slots ZSD O W N while the sixth time slot ZS ⁇ 6 and the eighth time slot ZS ⁇ 8 are "uplink" time slots ZSUP.
  • a first distance AS1 between the "downlink" time slot ZS D ON and the "uplink” time slot ZS UP - according to the prior art (cf. FIG. 7) - is so long , like half the time division multiplex frame ZMR.
  • the distance AS1 is thus a fraction of the length of the time-division multiplex frame ZMR, the fraction having the value 0.5.
  • the first group of telecommunication connections G1 occupies the six codes C1 ... C6 on a fourth frequency FR4 in the downward transmission direction in the fourth time slot ZS and again in the seventh time slot ZS ⁇ 6 in the seventh time slot the six codes C1. ..C6, while the second group of telecommunications connections G2 on the fourth frequency FR4 in the downward transmission direction in a second time slot ZS 2 the codes C1 ... C4 and in the upward transmission direction in the fifth time slot ZS ⁇ 5 the first code Cl and the second Code C2 occupied.
  • the fourth time slot ZS and the second time slot ZS ⁇ 2 are - like in the first connection scenario VSZ1 - "downlink" time slots ZS DOWN while the seventh time slot ZS ⁇ 7 and the fifth time slot ZS 5 are "uplink" time slots ZS UP .
  • a second distance AS2 between the "downlink" time slot ZS DOWN and the "uplink” time slot ZS U P SO is as long as a fraction (distance) of the length of the time plexrahms ZMR, the fraction so dimensioned and larger or smaller than the value 0.5 that the second distance AS2 is fixed.
  • the first group of telecommunication connections G1 in the downward transmission direction on a sixth frequency FR6 in the second time slot ZS ⁇ 2 occupies the four codes C1 ... C4 and in the upward transmission direction on a fifth frequency FR5 in the eighth time slot ZS ⁇ 8 the six codes C1 ...
  • the second time slot ZS ⁇ 2 and the third time slot ZS 3 are “downlink” time slots ZSDOWN / while the eighth time slot ZS ⁇ 8 and the fifth time slot ZS ⁇ 5 are “uplink” time slots ZSU P.
  • a third distance AS3 between the "downlink" time slot ZS DO W N and the "uplink” time slot ZS UP is a fraction (distance) of the length of the time division multiplex frame ZMR, the fraction in each case is dimensioned such that the third distance AS3 is variable.
  • the first group of telecommunication connections Gl occupies the first code C1 in the downward transmission direction on an eighth frequency ⁇ FR8 in the fourth time slot ZS and in the upward transmission direction on a ninth frequency FR9 in the sixth time slot ZS 6 the seven codes C1 ... C7, while the second group of telecommunication connections G2 in the downward transmission direction on the eighth frequency FR8 in the third time slot ZS 3 the first code Cl and in the upward transmission direction on the ninth frequency FR9 in the fifth time slot ZS ⁇ 5 the first code Cl occupied.
  • the fourth time slot ZS and the third time slot ZS 3 are “downlink” time slots ZS DO W N
  • the sixth time slot ZS X 6 and the fifth time slot ZS ⁇ 5 are “uplink” time slots ZSUP.
  • a fourth distance AS4 between the "downlink" time slot ZSDOWN and the "uplink” time slot ZS UP is a fraction (distance) of the length of the time-division multiplex frame ZMR, the fraction always being so it is dimensioned that the fourth distance AS4 is fixed.
  • the first group of telecommunications connections Gl is onto an eleventh frequency FRLL in the downward direction of transmission in the fourth time slot ZS the first code Cl and the second code C2, and ⁇ in the uplink transmission direction in the fifth time slot ZS 5 again the first code Cl and second code C2, while the second group of telecommunications connections G2 occupies the codes C1 ... C5 on the eleventh frequency FRll in the downward transmission direction in the first time slot ZS ⁇ l and in the upward direction in the eighth time slot ZS 8 the codes C1 ... C3.
  • the fourth time slot ZS and the first time slot ZS 1 are “downlink” time slots ZS DO W N / while the fifth time slot ZS ⁇ 5 and the eighth time slot ZS ⁇ 8 are “uplink” time slots ZS UP .
  • a fifth distance AS5 between the "downlink" time slot ZS DOWN and the "uplink” time slot ZS UP is as long as a fraction (distance) of the length of the time-division multiplex frame ZMR, the fraction so dimensioned that the second distance AS2 is variable.

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

Abstract

L'invention concerne des systèmes de télécommunication à télécommunication sans fil, fondée sur le code et le multiplexage dans le temps entre des postes émetteurs/récepteurs mobiles et/ou fixes. L'invention vise à améliorer le "traitement support" comparativement aux solutions en cours. A cet effet, que ce soit en mode DRT ou en mode DRF du système de télécommunication, les services de voie de transmission se présentant sous forme de "services supports" sont des canaux logiques du système de télécommunication, tel que le canal AGCH, le canal BCCH, le canal PCH, le canal RACH et/ou le canal FACCH, qui sont requis dans le système de télécommunication dans le sens descendant et/ou dans le sens ascendant, lesdits services de voie de transmission étant réunis en faisceau dans un plan-code élargi par des codes (C1...C8).
PCT/EP1999/001321 1998-02-27 1999-03-01 Systemes de telecommunication a telecommunication sans fil, fondee sur le code et le multiplexage dans le temps WO1999044323A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU35967/99A AU3596799A (en) 1998-02-27 1999-03-01 Telecommunications system with wireless code and time-division multiplex based telecommuncation between mobile and/or stationary transmitting/receiving devices
EP99917817A EP1072108A2 (fr) 1998-02-27 1999-03-01 Systemes de telecommunication a telecommunication sans fil, fondee sur le code et le multiplexage dans le temps entre des postes emetteurs/recepteurs mobiles et/ou fixes
JP2000533971A JP2002505549A (ja) 1998-02-27 1999-03-01 符号多重化および時分割多重化に基づき無線遠隔通信を移動および／または定置の送信機器／受信機器間で行う遠隔通信システム

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EP98103522.3 1998-02-27
EP98103522 1998-02-27

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WO1999044323A2 true WO1999044323A2 (fr) 1999-09-02
WO1999044323A3 WO1999044323A3 (fr) 1999-10-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003516063A (ja) * 1999-12-01 2003-05-07 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 遠隔通信網における伝送チャネルの割当てのための方法および加入者局
US7904098B2 (en) 1999-12-01 2011-03-08 Ipcom Gmbh & Co. Kg Method of assigning transmission channels in a telecommunications network and user station

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CN1298579A (zh) 2001-06-06
KR100377659B1 (ko) 2003-03-26
JP2002505549A (ja) 2002-02-19
WO1999044323A3 (fr) 1999-10-28
CN1214545C (zh) 2005-08-10
KR20010041390A (ko) 2001-05-15
AU3596799A (en) 1999-09-15

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