EP2335358A1 - Procédé de communication en ultra-large bande entre au moins un noeud émetteur et au moins un noeud récepteur - Google Patents

Procédé de communication en ultra-large bande entre au moins un noeud émetteur et au moins un noeud récepteur

Info

Publication number
EP2335358A1
EP2335358A1 EP09783364A EP09783364A EP2335358A1 EP 2335358 A1 EP2335358 A1 EP 2335358A1 EP 09783364 A EP09783364 A EP 09783364A EP 09783364 A EP09783364 A EP 09783364A EP 2335358 A1 EP2335358 A1 EP 2335358A1
Authority
EP
European Patent Office
Prior art keywords
pulse rate
pulses
data
data transmission
transmitted
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.)
Ceased
Application number
EP09783364A
Other languages
German (de)
English (en)
Inventor
Johannes Hund
Andreas Heinrich
Christian SCHWINGENSCHLÖGL
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
Publication of EP2335358A1 publication Critical patent/EP2335358A1/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/7176—Data mapping, e.g. modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/719—Interference-related aspects

Definitions

  • the invention relates to a method for pulse-based ultra-wideband Kirkation between at least one transmitting node and at least one receiving node.
  • UWB Ultra Wide Band
  • the UWB technology is a short-range radio communication system that uses very large frequency bands with a bandwidth of at least 500 MHz or at least 20% of the arithmetic average of the lower and upper cutoff frequency of the frequency band used.
  • Wi-Fi may be kept low
  • UWB signals the average maximum allowable energy is prescribed when sending the signals by regulatory authorities.
  • a variant of UWB systems is currently defined by the IEEE 802.15.4a standard. This standard describes media access for UWB communication systems based on impulse radio technology. It is a pulse-based UWB communication in which information is coded independently of the frequency by pulses in the UWB signals.
  • UWB transmission which satisfies the regulatory requirements with regard to the maximum allowable energy, allows either data transmission with high pulse rates with low energy per pulse or with low pulse rates with high energy per pulse.
  • high data rates can be achieved with high pulse rates, only small ranges are possible in the transmission in air due to the energy which decreases with the distance.
  • the higher allowed pulse energy while transmitting at a low pulse rate provides higher ranges, but with lower data rates.
  • Pulse-based UWB systems with a fixed pulse rate are currently being used. These allow either a high-speed data transmission over short distances or a slow data transmission ⁇ with high range. This creates the problem that in the case of several transmit and receive nodes which share the transmission medium, a high bit rate UWB communication can not be operated simultaneously with a low bit rate UWB communication. In particular, the high pulse energy of the low-bit-rate UWB transmission disturbs the high-bit-rate data transmission in a relatively wide range and collisions of the two data transmissions in the shared frequency band occur.
  • the object of the invention is therefore to provide a pulse-based Uitra broadband communication between the transmitting node and the receiving node, in which several data transmissions with different data rates are made possible at the same time.
  • one or more transmit nodes transmit an ultra-wideband signal comprising a plurality of pulses to one or more receive nodes.
  • a transmitting node preferably also receive data and / or a receiving node preferably also send data.
  • data is transmitted by means of a first data transmission by pulses having a first pulse rate and by means of one or more second data transmissions by pulses having a respective second pulse rate, wherein a respective second pulse rate is higher than the first pulse rate. Every two th data transmission is thus associated with a respective second pulse rate, which is higher than the first pulse rate.
  • the pulses are transmitted at a respective second pulse rate at time intervals in which no pulses of the first pulse rate are transmitted.
  • the pulses of the ultra-wideband signal are transmitted continuously in successive time windows with a constant length, each time slot containing a single pulse.
  • a time window with a pulse of the first pulse rate is followed by a time window with a pulse of the respective second pulse rate.
  • first time windows of the successive time windows for pulses of the first pulse rate and second time windows for pulses of a respective second pulse rate are provided, wherein the first or the respective second pulse rate is given by the repetition rate of the first and the second time windows.
  • This variant of the invention leads to the individual second pulse rates being multiples of the first pulse rate. If several second data transmissions are realized in the UWB signal, the pulses of the respective second data transmissions are also interleaved such that in a timely manner window only one pulse of a single second data transmission occurs.
  • the encryption erflndungsge186en driving both the first data transfer and at least a second data transfer between a single ⁇ NEN transmitting node and a single receiving node.
  • This variant of the invention is used, for example, to prevent further data transmissions starting from other transmitting nodes in the range of the individual transmitting node. This is achieved in the ⁇ special in that a predetermined signal pattern is transmitted at the first data transmission, whereby on receiving node within range of the individual transmitting node a first data transmission from the other transmitting node BLO is ckiert because collisions by the predetermined signal pattern were caused.
  • CSMA Carrier Sense Multiple Access
  • the transmitting nodes and the receiving nodes synchronize with one another by means of synchronization preambles known per se from the prior art.
  • a transmitting node and a receiving node which wish to transmit data on the second data transmission, stop the first data transmission and synchronize to this preamble upon hearing a synchronization preamble.
  • the transmitting node transmits a synchronization preamble for synchronization via the second data transmission.
  • a transmitting node which transmits data by means of the second data transmission can also listen to the pulses of the first pulse rate in order to synchronize therewith or to correct a synchronization which has already taken place.
  • a transmitting and receiving node between which data are to be transmitted, signal to one another when a second data transmission is possible in order subsequently to transmit the data to be transmitted by means of the second data transmission.
  • Transmitting or receiving node may find that they are close enough to each other so that a data transmission at a higher pulse rate is mög ⁇ Lich, for example, by the signal-to-noise ratio of the transmitted signal uber-.
  • the first data transmission is performed such that the Pul ⁇ se with the first pulse rate in bursts, are transmitted comprising one and preferably a plurality of pulses, said bursts occur at predetermined time intervals, which separate by rationsmtervalle are separated from each other, and wherein a respective second data transmission is carried out by pulses with the second pulse rate in the separation intervals.
  • the transmission of bursts can alternatively or additionally be used for the continuous transmission of pulses in time windows of constant length.
  • This variant of the dung OF INVENTION ⁇ has the advantage that for the first data transfer an already standardized procedure according to the IEEE 802.15.4a standard can be used. In this case, the pulses of the second pulse rate are transmitted to the so-called guard intervals in accordance with a symbol structure of this standard. The guard intervals serve as a safety margin to reduce the intersymbol interference.
  • the entire separation intervals are used for the second data transmission, whereby a high pulse rate for the second data transmission is achieved.
  • the data transmitted by the pulses with the two ⁇ th pulse rate data is preferably pulse modulated, that each pulse carries out bit information. This also achieves a high data rate.
  • the data transmitted by the pulses at the second pulse rate may also be burst-modulated, ie, each burst carries bit information. This increases the redundancy in the data transfer, but this leads to a lower data rate.
  • the invention further comprises a communication network for pulse-based ultra-wideband communication with at least one transmitting node and at least one receiving node, which in operation communicate such that each variant of the above-described method according to the invention in the communication network is feasible.
  • FIG. 1 is a schematic representation of the transmission of a UWB signal according to a first embodiment of the invention
  • FIG. 2 shows a schematic representation of the transmission of a UWB signal according to a second embodiment of the invention
  • FIG. 3 shows a schematic representation of the synchronization between transmitting and receiving nodes carried out in one embodiment of the invention
  • FIGS. 4 to 12 show schematic representations of different scenarios in which nodes communicate with one another based on variants of the method according to the invention.
  • Fig. 13 is a schematic representation of the transmission of a UWB signal according to a third embodiment of the erfmdungsge ⁇ massen method.
  • the UWB signal is given a first data transmission with a low pulse rate and a long range, and a second data transmission with a high pulse rate and a low range.
  • Fig. 1 shows a UWB signal according to a first Ausbowungs ⁇ form of erfmdungsgeloisen method.
  • the time axis extends in the horizontal direction, with corresponding time windows in each of which a single pulse being transmitted. will bear, are denoted by TO, Tl, ..., T15.
  • some of the pulses are designated by the reference symbol P.
  • a UWB signal is generated by a so-called transceiver T n which transmits at a high pulse rate.
  • the transceiver in this case represents a transmitting node according to the invention. In addition to its function as a transmitting node, however, the transceiver can also function as a receiving node in the sense of the invention.
  • the UWB signal generated by the transceiver includes data transmitted by pulses at a high pulse rate and data transmitted by pulses at a low pulse rate.
  • the signal is received by a receiver node R H , which processes only the pulses transmitted at a high pulse rate.
  • a data transmission on two pulse rates is made possible in that part of the time window for the transmission at the high pulse rate are reser ⁇ fourth and the other part for the transmission with the low pulse rate.
  • high-pulse pulses are transmitted in the time windows T1, T2, T3, T4, T6, T7, T8, T9, T11, T12, T8, T14, whereas in the time windows T0, T5, T10 and T15 pulses are transmitted low pulse rate are included.
  • corresponding gaps are used in the low-rate transmission.
  • the repetition frequency for the pulses of the high rate essentially corresponds to the size of a time window and is denoted PRP H in FIG.
  • the repetition period for the low-rate pulses corresponds to five time windows and is denoted by PRP L in FIG.
  • a high pulse rate is created, which is a multiple of the low pulse rate.
  • the UWB signal may also be configured to provide a plurality of high pulse rates, with the high rate pulses not overlapping with each other or with the low rate pulses. All these higher rates are in turn multiples of the low pulse rate.
  • the individual pulses P are represented by corresponding positive and negative peaks, wherein a 0-bit is transmitted by a positive peak and a 1-bit by a negative peak.
  • a predetermined signal ⁇ pattern as Busy Tone ie as a busy signal
  • the signal sequence 01010 ... is used as the busy tone, although any other signal sequences can be used for this.
  • This busy tone is received by each receiving node R L within range of the transceiver and ver ⁇ prevents the reception of data at the low rate of other transceivers, since the pulses from other transceivers with the pulses of the busy tone collide.
  • a single transceiver ensures that receive nodes within range of the transceiver can not receive low pulse rate signals from other transceivers.
  • a transmission is interleaved at a high and at a low rate of two transceivers.
  • the signal sequence shown in FIG. 2 largely corresponds to the signal sequence of FIG. 1.
  • the pulses are now transmitted by two transceivers, namely a transceiver T H , the pulses with a high pulse rate and lower energy and a transceiver T L which emits pulses at a low pulse rate and high energy.
  • Time slots for the high pulse rate and the low pulse rate are selected analogously as in FIG. That is, in the time slots Tl to T4, T6 to T9, and Tl0 to T14, high pulse rate pulses are transmitted, and in the time slots TO, T5, T10, and T15, low pulse rate pulses are transmitted.
  • the transmission with low pulse rate now takes place through a separate transceiver T L , which transmits the bit sequence 0001 in the time segment of FIG. 2.
  • This sequence no longer represents a busy tone, but it sends out corresponding information at a low rate, which can be received by the corresponding receiver R L , which only hears in the time slots of the low pulse rate.
  • the pulses of the high rate are received by the receiver R H.
  • Pair of transmit and receive nodes at a low rate
  • the transmitting and receiving nodes run in a bit-synchronized manner.
  • An implementation of a corresponding node synchronization is shown in FIG.
  • a so-called synchronization preamble is used for synchronization.
  • the transmission of synchronization preambles is known per se and is used, for example, to prevent bit collisions in time slot protocols.
  • the synchronization preamble SP sent by a low-rate transceiver T L is used not only to synchronize transmit and receive nodes at the low pulse rate, but also to synchronize transmit and receive nodes at the high pulse rate.
  • Fig. 3 illustrates in the context of a time chart with horizontally extending time axis, the initial transmission of the Synchronization preamble SP by the transceiver T L at the low data rate, followed by a start of frame delimiter SFD. Following the Start of Frame Delimiter SFD, the transmission takes place at a low rate, which is indicated by corresponding time windows TWL. To synchronize to the high pulse rate, the corresponding high rate transmit and receive nodes first listen in the next timeslot. If a transmission takes place in this time slot at a low pulse rate, the transmitting and receiving nodes can listen to and synchronize with the synchronization preamble SP of this transmission.
  • a possible signal sequence of a transceiver T H which transmits at a high pulse rate is also shown.
  • synchronization takes place on the synchronization preamble SP of the transceiver T L , provided that data transmission takes place in parallel at a low pulse rate.
  • the data transmission at the high pulse rate, which is synchronized with the data transmission at a low pulse rate, is indicated by corresponding time windows TWH.
  • the transceiver T H m may also be possible for the transceiver T H m to listen to the time slots of the low rate, which is indicated by time slots TW 'shown correspondingly hatched. As a result, a corresponding correction of the synchronization can be carried out during the data transmission.
  • the transceiver T H find no synchronization preamble of low-rate data transmission within a predetermined time interval within a predetermined time interval, exemplified in Fig. 3, it will itself transmit a synchronization preamble at the high rate.
  • the transmission of this synchronization preamble takes place in the time interval TI 'shown hatched.
  • the send nodes and receive nodes which send at high rates and receive, then synchronize themselves by means of this synchronization preamble.
  • a timeslot protocol known per se in the prior art is used, e.g. Slotted CSMA (Carrier Sense Multiple Access).
  • CSMA Carrier Sense Multiple Access
  • Each data transmission begins with a known synchronization preamble. Before a send node can send, it has to listen to the channel after such a preamble (Preamble Sensing Multiple Access - PSMA).
  • two nodes which have data to transmit signal that they are close enough to each other so that they can transmit and receive at the high pulse rate. That transmission at the high pulse rate is possible can be found, for example, by the SNR (Signal to Noise Ratio) of the signals.
  • RTS Ready To Send
  • CTS Clear To Send
  • RTS or CTS packets are well known in the art and is used, for example, in timeslot protocols.
  • the transmit and receive nodes switch to a high pulse rate to be sent or received in the next time slot at the high pulse rate.
  • the data transmission at the high pulse rate is in turn synchronized by a suitable method with the low pulse rate so that the gaps of the low pulse rate coincide with a corresponding pulse of the high pulse rate.
  • a single transmit node can transmit data at the high pulse rate and use the low data rate to transmit a busy tone. It is also possible that the transmitting node finally sends ⁇ on the high pulse rate, and does not transfer signals on the niedri ⁇ gen pulse rate, thereby enabling Interlea- ving method according to FIG. 2, in which over egg nen further Send node on low pulse rate information can be transmitted.
  • a transmitting node is transmitted at a low rate to a receiving node, while another transmitting node synchronizes to the transmission at a high pulse rate and precisely in the gaps between the low rate pulses its pulses to one Receive node transmits.
  • two high and low data rate data transmissions run in parallel, which do not interfere with each other.
  • this node If this node is reach and wants to send, it first listens for the low rate in the channel. He then receives the busy tone and thereby detects that the channel is being used. He then performs a so-called backoff mechanism over a random number of time slots until the next send attempt on the low pulse rate.
  • FIG. 4 to 12 again show corresponding scenarios of the inventive data transmission between transmitting and receiving nodes based on the busy tone method and the interleaving method, respectively.
  • the transmit and receive nodes are all configured such that they can both transmit and receive signals.
  • ent ⁇ speaking transmitting node are denoted as hatched circles with reference numeral Sl or S2.
  • the range of the respective transmitting node Sl for a data transmission with a high pulse rate is indicated by respective circles C.
  • corresponding receiving nodes are denoted by El and E2 and reproduced as white circles.
  • a high-rate data transmission between a transmitting and receiving node is represented in FIG. 4 to FIG.
  • FIG. 4 shows a scenario in which a transmitting node S 1 transmits at a high data rate to a receiving node E 1, thereby transmitting a busy tone.
  • Another transmitting node S2 which wants to send to the receiving node El at a low rate, receives the busy tone of the transmitting node Sl, since it is within its range.
  • a data transmission of the transmitting node S2 to the receiving node El is not permitted, which is indicated by a jagged flash in FIG.
  • the transmitting node S1 in turn transmits at the high data rate to the receiving node El and at the same time transmits the busy tone.
  • a transmitting node S2 which would like to transmit to a receiving node E2 outside the range of the transmitting node Sl, listens to the channel and receives the busy tone, so that transmission at the low pulse rate is not permitted, which in turn jagged lightning is indicated.
  • the transmitting node S1 sends data at the high data rate in combination with a busy tone to the receiving node El.
  • another transmitting node S2 outside the range of the transmitting node Sl transmits at the low data rate to a receiving node E2, which is also out of range of the transmitting node Sl. Since the busy tone is not receivable by the node S2, the transmission of pulses at the low rate is also permitted.
  • Fig. 7 shows a scenario in which the transmitting node Sl transmits data of high pulse rate in combination with a busy tone to the receiver El. Furthermore, a transmitter S2 transmits data at the low pulse rate to a receiver E2, which is within range of the transmitter S1 and thus also receives the busy tone from the transmitter S1. Analogous to FIG. 6, collisions occur at the receiver E1, which also includes the signal of the receiver
  • Transmitter S2 arrives. However, since the receiver El ignores the pulses of the low pulse rate, data transmission Zvi ⁇ rule transmitter S and receiver El is not disturbed. However, the transmission of the data at a low pulse rate from the transmitter S2 to the receiver E2 is not possible because, due to the busy tone of the transmitter S1, collisions occur at the receiver E2, as indicated by a corresponding star S.
  • Fig. 8 shows a scenario of an interleaving method in which the transmitter S1 now transmits data at the high rate to the receiver El without busy tone.
  • Em transmitter S2 within range of the transmitter Sl further transmits data to a low pulse rate to a receiver E2.
  • Those with low pulse rate data sent also goes to the receiver El.
  • the collision freedom is indicated by the pulse sequence in the rectangle R 'of FIG. 8.
  • the receiver El only evaluates the pulses of the high pulse rate and ignores the pulses of the low rate.
  • the transmission of the low-rate data from the transmitter S2 to the receiver E2 is enabled because at the low rate, no busy tone passes from the transmitter S1 to the transmitter S2.
  • the transmitter S1 transmits data without busy tone to a receiver E1 at a high pulse rate.
  • the further transmitter S2 is outside the range of the transmitter Sl and transmits low pulse rate data to another receiver E2, which is also outside the range of the transmitter Sl.
  • the low-rate data also goes to the receiver El, but does not cause collisions because no busy tone is received at El.
  • the collision freedom is again indicated by the pulse sequence in the rectangle R '. It also does not lead to disruption of the transmission from the transmitter to the receiver Sl El because the receiver El pulses at low pulse rate igno ⁇ riert.
  • Fig. 10 shows a scenario similar to Fig. 9, but now the receiver E2 is within the range of the transmitter Sl. This means that the signals arrive at high pulse rate from the transmitter Sl to the receiver E2. However, this does not cause a disturbance of the data transmission since the receiver E2, which is listening to a low pulse rate, ignores the pulses at a high pulse rate and no busy tone is transmitted by the transmitter S1. Also, the data transmission at high rate from the transmitter Sl to the receiver El can - analogous to Fig. 9 - run undisturbed, since the receiver El ignores the low pulse rate pulses, which pass from the transmitter S2 to the receiver El. Fig.
  • FIG. 11 shows a scenario in which a single transmitter Sl simultaneously transmits data at high and low rates to two receivers El and E2.
  • the data to the receiver El are transmitted to high pulse rate and the data to the receiver E2 at low pulse rate.
  • the two data transmissions are designed such that they have the same coverage of the Wesentli ⁇ chen.
  • FIG. 12 shows a scenario analogous to FIG. 11, wherein now the data transmission at low pulse rate has a higher range than the data transmission at high pulse rate.
  • the high pulse rate is transmitted as multiples of the low pulse rate, with the "common" pulses of both rates being used exclusively by the low rate, and thereby low rate pulses do not collide with those of the high rate
  • simultaneous transmission at high and low data rates in the same medium is possible, in which case the individual send and receive nodes do not have to coordinate explicitly or be coordinated from outside as long as they are synchronized in a pulse-synchronized manner
  • the system can be dynamically adapted by means of the pulse rate to both the data rate and the realm limits. The realization of the system is possible with a single, inexpensive standard component based on a transceiver operating on the IEEE 802.15.4a standard.
  • FIG. 13 shows a further variant of the method according to the invention, in which the pulses are now transmitted at the low rate in so-called bursts, through which very short, high-energy pulse sequences are transmitted, followed by long pauses.
  • a bit is encoded by a burst.
  • the bursts are transmitted at a low rate based on the IEEE 802.15.4a standard.
  • Fig. 13 shows the transmission according to this standard with time axis running in the horizontal direction.
  • the information is in so-called symbol intervals T s ⁇ transferred, which in each case divided into two sub-intervals T BPM ⁇ .
  • Each of these equally long sub-intervals T BPM in turn contains two intervals T B p and T G ⁇ .
  • the two front intervals T B p are used to transmit the bursts.
  • the intervals T G i which respectively represent the second half of the interval T BPM , are so-called guard intervals in which no bursts are transmitted.
  • the guard intervals serve as a safety margin to reduce the intersymbol interference.
  • the intervals T BP are divided into several so-called time hopping positions of the length T B , which are reproduced as corresponding squares.
  • a burst can be transmitted and the length T B of a time hopping position corresponds to the length of a burst.
  • FIG. 2 shows by way of example a burst B for one of the time hopping positions in the front region of the symbol interval T s ⁇ .
  • Each burst B contains ⁇ a number of so-called.
  • Chips with the length T c each chip corresponds to the length of a pulse. In a symbol interval, only one burst is transmitted in each case, wherein the position of the burst in the front or rear interval T BB another bit is encoded.
  • the corresponding guard intervals T G ⁇ in the symbol ⁇ structure of FIG. 13 can be used to transmit simultaneously on a high pulse rate with lower energy data.
  • the guard intervals T G ⁇ ie the gaps between the intervals T BB used for the bursts of the low pulse rate, are thus used to transmit at a high pulse rate.
  • the respective entire interval T G ⁇ is used.
  • a transceiver which uses the variant of the method according to the invention just described initially synchronizes itself to the symbol interval of an incipient transmission according to the standard IEEE 802.15.4a. This happens again, for example, by listening to the synchronization preamble. Then the transceiver switches to a high pulse rate transmission mode. He uses for the guard intervals T G i the existing nied ⁇ gbitratigen transmission to perform in these periods of high-rate transmission with a correspondingly low energy to a nearby receiver. By transmitting each pulse at a very low power in the high-pulse-rate transmission, the generated interference is minimal. It arises in this
  • Embodiment a slightly larger Gaussian noise for the working on the low pulse rate receiver.
  • the interference generated is unproblematic as a rule by the very low Ener ⁇ giepractic the high pulse rate.
  • the energy with which a pulse of high pulse rate can be sent is dependent on the symbol structure used in the underlying IEEE 802.15.4a connection, which in turn is determined by the data rate.
  • this structure represents the width of the guard intervals T G i (as number of time slots T B ). This therefore indicates how many pulses of the high pulse rate per symbol interval T BPM can be transmitted.
  • the pulses of the high pulse rate ⁇ which are transmitted in the intervals T G i may be either individually modulated or each be summarized as a burst. Depending on how many chips are used per burst (ie how many pulses within a burst), additional redundancy results.
  • the high data rate is the number of chips per symbol interval multiplied by the symbol rate divided by two.
  • the high data rate in the burst modulation the number of bursts per symbol interval multiplied ⁇ ed at the symbol rate and divided by two.
  • short-range data transfers with a data rate of up to 250 MBit per second can be achieved.
  • the embodiment of the method according to the invention explained with reference to FIG. 13 has the advantage that a standard radio module according to IEEE 802.15.4a can also be used for fast data transmission over short distances, without the standard communication based on low data rate To disturb IEEE 802.15.4a.
  • This enables a system that utilizes the IEEE 802.15.4a standard for low data rate signaling and communication over longer distances, and also provides short-range data transfer at a fast data rate by utilizing guard intervals.
  • standard transceivers can communicate at very high data rates over short distances.

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Abstract

L'invention concerne un procédé de télécommunications par impulsions en ultra-large bande entre au moins un nœud émetteur (S1, S2) et au moins un nœud récepteur (E1, E2). Le procédé selon l'invention comprend la transmission d'un signal ultra-large bande comprenant une pluralité d'impulsions à un ou plusieurs nœuds récepteurs (E1, E2) à partir d'un ou plusieurs nœuds émetteurs (S1, S2). Dans le signal ultra-large bande, des données sont transmises par une première transmission de données avec des impulsions (P) à une première fréquence d'impulsions, et par une ou de plusieurs secondes transmissions de données avec des impulsions à une seconde fréquence d'impulsions respective, ladite seconde fréquence d'impulsions respective étant plus élevée que la première fréquence d'impulsions. Les impulsions (P) présentant les secondes fréquences d'impulsions sont transmises dans des intervalles temporels pendant lesquels aucune impulsion (P) associée à la première fréquence d'impulsion n'est transmise. Le procédé de l'invention présente l'avantage d'exploiter les plages temporelles entre les impulsions de la première transmission de données pour transmettre simultanément les données d'une seconde transmission de données avec une fréquence d'impulsions plus élevée. Ce procédé ne nécessite pas de coordination explicite ou externe entre le nœud émetteur et le nœud récepteur.
EP09783364A 2008-10-15 2009-09-24 Procédé de communication en ultra-large bande entre au moins un noeud émetteur et au moins un noeud récepteur Ceased EP2335358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008051822A DE102008051822A1 (de) 2008-10-15 2008-10-15 Verfahren zur pulsbasierten Ultra-Breitband-Kommunikation zwischen zumindest einen Sende-Knoten und zumindest einem Empfang-Knoten
PCT/EP2009/062373 WO2010043480A1 (fr) 2008-10-15 2009-09-24 Procédé de communication en ultra-large bande entre au moins un noeud émetteur et au moins un noeud récepteur

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EP2335358A1 true EP2335358A1 (fr) 2011-06-22

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US (1) US8705589B2 (fr)
EP (1) EP2335358A1 (fr)
CN (1) CN102187591B (fr)
DE (1) DE102008051822A1 (fr)
WO (1) WO2010043480A1 (fr)

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DE102008051822A1 (de) 2008-10-15 2010-04-29 Siemens Aktiengesellschaft Verfahren zur pulsbasierten Ultra-Breitband-Kommunikation zwischen zumindest einen Sende-Knoten und zumindest einem Empfang-Knoten
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6711122B1 (en) * 1999-02-08 2004-03-23 Radiolan, Inc. Frequency offset differential pulse position modulation
US6836226B2 (en) * 2002-11-12 2004-12-28 Pulse-Link, Inc. Ultra-wideband pulse modulation system and method
US20040218687A1 (en) * 2003-04-29 2004-11-04 John Santhoff Ultra-wideband pulse modulation system and method
EP1610146A1 (fr) * 2004-06-25 2005-12-28 International Business Machines Corporation Méthode et système d'affichage vidéo reconnaissant l'utilisateur
RU2258942C1 (ru) * 2004-09-28 2005-08-20 Лайф Сенсор Ко., Лтд. Способ стабилизации временного положения сверхширокополосного сигнала и локатор для мониторинга живых объектов, реализующий этот способ
US7889753B2 (en) * 2006-11-16 2011-02-15 Qualcomm Incorporated Multiple access techniques for a wireless communication medium
CN101267424B (zh) * 2008-02-26 2011-08-31 上海大学 基于扫频脉冲的超宽带无线通信调制方法
WO2009115637A1 (fr) * 2008-03-17 2009-09-24 Nokia Corporation Établissement de session de communication
DE102008051822A1 (de) 2008-10-15 2010-04-29 Siemens Aktiengesellschaft Verfahren zur pulsbasierten Ultra-Breitband-Kommunikation zwischen zumindest einen Sende-Knoten und zumindest einem Empfang-Knoten

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2010043480A1 *

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US20110268156A1 (en) 2011-11-03
CN102187591B (zh) 2015-01-21
DE102008051822A1 (de) 2010-04-29
WO2010043480A1 (fr) 2010-04-22
US8705589B2 (en) 2014-04-22
CN102187591A (zh) 2011-09-14

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