WO2003084108A1 - Procede de retransmission de donnees dans un systeme de transmission et de communication a porteuses multiples presentant un dispositif de controle de retransmission de donnees - Google Patents
Procede de retransmission de donnees dans un systeme de transmission et de communication a porteuses multiples presentant un dispositif de controle de retransmission de donnees Download PDFInfo
- Publication number
- WO2003084108A1 WO2003084108A1 PCT/JP2003/003290 JP0303290W WO03084108A1 WO 2003084108 A1 WO2003084108 A1 WO 2003084108A1 JP 0303290 W JP0303290 W JP 0303290W WO 03084108 A1 WO03084108 A1 WO 03084108A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- retransmission
- carrier
- data
- group
- data retransmission
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
- H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
Definitions
- the present invention relates to a data retransmission method in multicarrier transmission and a communication device provided with a data retransmission control device.
- OFDM Orthogonal Frequency Division Multiplex
- OFDM increases the symbol length by distributing the time-series data symbol sequence to subcarriers (carriers) having multiple orthogonal frequencies, and adds a guard interval to reduce the effect of intersymbol interference of delayed waves. It has been reduced.
- technologies that realize high-speed multimedia mobile communication by combining wired network communication using optical fibers for example, ATM (Asynchronous Transfer Mode) communication
- highly reliable wireless communication such as OFDM are attracting attention. Have been.
- CBR Cost of Service
- VBR Cost of Service
- ABR Quality of Service
- UBR Quality of Service
- QoS Quality of Service
- the file transfer which may include up to the application layer 10-9 of about. Low cell Le loss rate is required.
- error control in the wireless section is required to realize a seamless connection between the ATM network using high-quality optical fibers and the wireless communication path.
- ARQ Automatic Repeat reQuest
- OFDM multi-carrier communication
- the reception quality is checked for each of a large number of carriers (carriers), all information on carriers that do not satisfy a predetermined quality is stored, and the retransmission request includes a retransmission request. It is necessary to include information to identify the carrier corresponding to the desired data. If the number of carriers used increases, the number of bits of the information also increases, which causes a reduction in transmission efficiency.
- OFDM assumes tens to thousands of carriers to be used, and the above-mentioned known technology also has problems to overcome in order to actually use it in multimedia communications and the like that require high speed. It is thought that there are many. Disclosure of the invention
- An object of the present invention is to provide a retransmission By providing a new data retransmission method and a communication device equipped with a data retransmission control device, which simplifies the processing and reduces the load on the transmission / reception device, and secures a level that can withstand retransmission efficiency in practical use. is there.
- a data retransmission method in multicarrier transmission is a method for dividing a plurality of carriers used for multicarrier transmission into a plurality of groups in advance and performing error compensation of an ARQ scheme. Retransmission processing is performed in units of the group of a plurality of carriers.
- a data retransmission method in multi-carrier transmission wherein a transmitting-side device transmits data using a plurality of carriers composed of a plurality of groups, and a receiving-side device transmits
- the apparatus receives the plurality of carriers transmitted from the apparatus, performs demodulation processing on each carrier to obtain received data, determines whether there is an error by error detection processing, and requests retransmission when an error is found. And transmitting the retransmission request to the transmitting device, and the transmitting device retransmits data to the receiving device in response to the retransmission request.
- the retransmission request includes information indicating which group of the plurality of groups of the carrier is a target of the retransmission request.
- FIG. 1 is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 1 of the present invention.
- Fig. 2 is a diagram for explaining the grouping of all subcarriers in OFDM.
- FIG. 3 is a flowchart showing main steps of a data retransmission method according to the present invention.
- FIG. 4 is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 2 of the present invention.
- FIG. 5 shows a configuration of a communication device (mobile terminal device) according to Embodiment 3 of the present invention.
- FIG. 6 is a block diagram showing a configuration of a communication device (mobile terminal device) according to Embodiment 4 of the present invention.
- FIG. 7A is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 5 of the present invention.
- FIG. 7B is a block diagram showing a configuration of a delay variance generator of a communication device (portable terminal device) according to Embodiment 5 of the present invention.
- FIG. 8 is a block diagram showing a configuration of a communication device (mobile terminal device) according to Embodiment 6 of the present invention.
- FIG. 9 is a block diagram showing a configuration of a communication device (mobile terminal device) according to Embodiment 7 of the present invention.
- FIG. 10 is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 8 of the present invention.
- FIG. 11 is a block diagram showing a configuration of a communication device (mobile terminal device) according to Embodiment 9 of the present invention.
- FIG. 12 is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 10 of the present invention.
- FIG. 13 is a block diagram showing a configuration of a communication device (portable terminal device) according to Embodiment 11 of the present invention.
- FIG. 14 is a diagram for explaining a data retransmission method (a method of retransmitting only a subcarrier corresponding to a DC component) according to Embodiment 12 of the present invention.
- FIG. 1 shows a configuration of a mobile terminal equipped with a data retransmission control device according to the present invention. It is a block diagram.
- the mobile terminal apparatus 100 and the base station apparatus 150 in FIG. 1 perform OFDM communication.
- the carriers (subcarriers) used are divided into four groups in advance, as shown in Fig. 2. Each group is assigned a number from “1" to "4". , So that each group can be identified.
- subcarrier generally used in OFDM communication is used for convenience, but this is a synonym for “carrier” in multicarrier transmission, for example. In particular, no distinction is made.
- the receiving device detects errors in the received data.
- a method for adding an error detection code to each data corresponding to each subcarrier, or for each transmission symbol (for example, packet or cell A code for error detection is added to the unit, and when an error is detected, a method of estimating the location of the error and requesting retransmission is considered.
- the data retransmission method of the present invention temporarily belongs to the latter method.
- the former method can also be applied.
- the portable terminal device 100 includes a transmission system 110, a reception system 120, a subcarrier information acquisition unit 130, and a communication control unit 140.
- the subcarrier information acquisition section 130 is a section for examining the reception level of the subcarrier and acquiring information for determining which group is to be retransmitted.
- the receiving system 120 includes an antenna 121, a receiving unit 122, a memory 123, a P / S (parallel-serial conversion) unit 124, and a judging unit for performing Viterbi decoding or the like (error). Correction section) 125 and an error detection section 126.
- Receiving section 122 includes radio section 127, FFT (Fast Fourier Transform) section 128, and equalizing section 129.
- the error detection unit 126 performs, for example, syndrome calculation on the cyclic code, and determines whether or not there is an error (CRC method: Cyclic Redundancy Check).
- the subcarrier information acquisition unit 130 includes a PZS unit 131, a magnitude comparison unit 132, a counter unit 133, and a determination unit 134.
- the P / S section 131 distributes the signal indicating the level of the received signal (reception level) to each of the four groups shown in FIG. '
- the magnitude comparing section 1332 compares the reception level of each group with a threshold value, and outputs a determination signal indicating that the reception level is less than the threshold value when the reception level is less than the threshold value.
- the counter section 133 counts the number of times the reception level falls below the threshold for each group.
- the determination section 134 determines whether or not there is a group in which the count value of the counter section 133 exceeds a predetermined threshold. If there is a corresponding group, the communication control section 140 Notify the retransmission control unit 142 in the. In Fig. 2, group 1 is to be retransmitted.
- the communication control unit 140 includes a reception data memory 141 for temporarily storing reception data, a retransmission control unit 142, a transmission control unit 143, a retransmission request transmission unit 144, and a transmission data memory 145.
- the reception data is temporarily stored in the reception data memory 141.
- the error detection unit 126 when an error is detected by the error detection unit 126 and retransmission processing is performed, only data corresponding to groups other than the group to be retransmitted is retained.
- retransmission control section 142 Upon receiving the signal indicating the determination result from determination section 134 of subcarrier information acquisition section 130, retransmission control section 142 stores in retransmission request transmission section 144 and reception data memory 141 the number of the group for which retransmission is desired (FIG. 2). Then, "1") is notified.
- Retransmission request transmitting section 144 outputs a retransmission request signal (including information on the number of the group to be retransmitted). This retransmission request signal is transmitted via the transmission system 110. Sent to local station equipment 150
- the received retransmitted data and the data stored in the received data memory 141 are combined and output as received data. .
- transmission control section 144 is included in the received retransmission request signal.
- the retransmission control information is read from the reception data memory 141 to detect a group to be retransmitted.
- the transmission system 110 includes a modulation unit 111, a transmission unit 112, and a transmission antenna 113.
- Modulating section 111 has S / P (serial / parallel conversion) section 114 and IFFT (Inverse Fast Fourier Transform) section 115.
- the transmission unit 112 includes a multiplier 116 for multiplying the carrier f c and a bandpass finalizer 117.
- all subcarriers are divided into four groups, and it is determined whether or not retransmission is performed for each group.
- the group to be retransmitted is specified, and information specifying the group is sent to the receiving side. Then, all data corresponding to all carriers included in the specified group are retransmitted.
- the retransmission request can be made efficiently without increasing the control information (in this case, the group can be specified with 2 bits), and the transmission efficiency is improved.
- the group since it is assumed that a group is a unit, it is not necessary to manage information of each subcarrier in detail, and the retransmission process is simplified. This is also useful for high-speed communication.
- all subcarriers are divided into four groups, but the present invention is not limited to this.
- the ARQ scheme compensates for errors by retransmitting only erroneous data.
- the present invention when an error is detected, it is estimated from a reception level or the like which group is likely to include a subcarrier corresponding to the erroneous data from the reception level or the like. A new method of performing retransmission processing is adopted.
- OKDM is originally a radio communication system that is highly resistant to frequency selective fading and is a highly reliable radio communication system.Subcarriers in any frequency band can be affected by fading without strictly identifying the data that caused the error. If it is known, if the data in that frequency band (group belonging to) is retransmitted, it is considered that the desired reliability for ARQ control can be secured.
- OFDM adopts a method of batch-converting data using FT and IFFT operators, so that subcarriers included in one group (a group of subcarriers adjacent to each other) are used.
- the retransmission of the corresponding data can be realized without much difficulty by using this batch processing.
- the present invention focuses on such features of multicarrier transmission represented by ORDM, and realizes a realistic ARQ scheme in consideration of use in actual communication equipment.
- the retransmission control device shown in FIG. 1 (which realizes retransmission control, and the subcarrier information acquisition unit 130 and the retransmission control unit 142 are at least the components thereof) is only a mobile terminal device. Instead, it can be installed in base station equipment. '
- the retransmission control device according to the present invention is mounted on a base station device,
- the base station equipment needs to keep information on which group has requested retransmission for all users, and the amount of retransmission processing has increased, and the required memory capacity has become extremely large. Hardware load may be heavy. Therefore, it can be said that the retransmission control device according to the present invention is most suitable for being mounted on a portable terminal.
- the present invention when the present invention is applied to the downlink, there is almost no fear of a decrease in throughput, and in practice, it can be said that application to the downlink is desirable.
- FIG. 3 summarizes the characteristic operation of the ARQ scheme of the present invention described above.
- step S1000 all subcarriers are divided into a plurality of groups (step S1000), and if an error is detected by the receiving device (step S20000), retransmission is performed in groups. Is determined (step S3000). Then, retransmission is requested for the group (data corresponding to the subcarriers included in) for which retransmission is determined to be necessary (step S4000).
- FIG. 4 is a block diagram showing a configuration of the mobile terminal device according to the second embodiment.
- the feature of the present embodiment is that the threshold value (threshold value for checking whether or not a subcarrier whose reception level is depressed) in the magnitude comparison unit 132 in FIG. 1 is changed according to the data modulation method. It is to change.
- threshold value 1 and threshold value 2 used in the magnitude comparison section 13 2.
- the modulation scheme given by the control section (not shown) is Based on the signal shown, the selection unit 201 appropriately selects a threshold value to be used.
- the other parts are the same as in the configuration of FIG. 1, and the description is omitted.
- the same parts as those in FIG. 1 are denoted by the same reference numerals. This is the same in the following description.
- FIG. 5 is a block diagram showing a configuration of the mobile terminal device according to the third embodiment.
- the feature of the present embodiment is that the threshold value (threshold value for checking whether or not the subcarrier has a lowered reception level) in the magnitude comparison section 132 shown in FIG.
- Signal strength indicator received signal strength indicator signal.
- the threshold used to determine whether or not a subcarrier has a reduced reception level is changed by RSSI. That is, when RSSI is large, the threshold value for judgment is reduced, and when RSSI power is small, the threshold value for judgment is increased.
- the magnitude comparison unit 301 is provided, the RSSI is compared with the threshold value 3, and the selection unit 201 selects either the threshold value 1 or the threshold value 2 based on the comparison result. Have decided.
- FIG. 6 is a block diagram showing a configuration of the mobile terminal device according to the fourth embodiment.
- the feature of this embodiment is that not only the threshold value in the magnitude comparison section 13 2 ⁇ (threshold value for checking whether or not the subcarrier has a lowered reception level), but also the counting of the counter section 13 3
- the threshold for comparison with the value must also be changed according to the modulation method and RSSI.
- a selector 601 is added to the configuration of FIG. 5 to determine which of threshold 4 and threshold 5 is to be selected according to the comparison result of the magnitude comparator 301. Is determined.
- FIG. 7A is a block diagram illustrating a configuration of a mobile terminal device according to Embodiment 5
- FIG. 7B is a block diagram illustrating a configuration of a delay spread generation unit.
- the feature of this embodiment is that the threshold value in the magnitude comparison section 132 (threshold value for checking whether or not the received signal level is a subcarrier) or the count value of the counter section 133 Is to change the threshold value for comparing with the multipath delay time.
- the threshold value which is the criterion for the retransmission processing, according to the delay time of the multipath in terms of achieving both transmission efficiency and error rate.
- the threshold value when the delay time of the multipath is large, it is desirable to set the threshold value to a large value.
- the delay variance generator 501 generates multipath delay time information based on the signal after the FFT.
- the magnitude comparison section 301 determines whether or not the delay variance is greater than the threshold value 6. Based on the determination result, the threshold value in the magnitude comparison section 132 (the reception level drops The threshold value for checking whether the subcarrier is a subcarrier, or the threshold value for comparison with the count value of the counter 133.
- the delay variance generation unit 501 includes a delay unit 5 ⁇ 2, a subtractor 503, a circuit 504 for obtaining an absolute value, and a circuit 505 for obtaining an average value. And a division circuit 506.
- FIG. 8 is a block diagram showing a configuration of the mobile terminal device according to the sixth embodiment.
- a feature of the present embodiment is that the target of a retransmission request is limited to only one group that is estimated to require the most retransmission.
- the maximum value detection unit 61 detects the maximum count value by comparing the count values of a plurality of groups having a count value exceeding the threshold value 4. Then, only the group having the maximum count value is targeted for retransmission. As a result, it is possible to satisfy the high-speed communication while performing the error compensation of the ARQ scheme.
- FIG. 9 is a block diagram showing a configuration of the mobile terminal device according to the seventh embodiment.
- the feature of this embodiment is that OFDM-CDMA (Orthogonal Frequency Division Multiplex), which is studying a method of dividing all subcarriers into a plurality of groups and using -Code Division Multiple Access).
- OFDM-CDMA Orthogonal Frequency Division Multiplex
- OFDM-CDMA communication As shown in FIG. 9, after a transmission signal is spread by a spreading section 701, one spread chip is assigned to one subcarrier to perform communication. At the time of reception, despreading is performed in a despreading unit 702, and demodulation processing is performed in a demodulation unit 703 to extract information.
- FIG. 10 is a block diagram showing a configuration of a mobile terminal device according to Embodiment 8.
- the feature of the present embodiment is that the number of groups that can be requested per one retransmission request (upper limit number of groups) is changed based on delay dispersion and RSSI.
- the reception level difference between adjacent subcarriers increases as the delay spread increases. Therefore, changing the number of groups that can request retransmission according to the delay spread helps to achieve both transmission efficiency and error rate. Specifically, it is desirable to increase the number of groups that can request retransmission as the delay spread increases. Similarly, changing the number of groups for which retransmission requests can be made according to the RSSI helps to achieve both transmission efficiency and error rate. Specifically, it is desirable to increase the number of groups that can be retransmitted as the RSSI decreases.
- a magnitude comparison unit 801 is provided, the RSSI is compared with a threshold value 7, and the number of groups that can be selected by the selection unit 802 is changed according to the comparison result.
- FIG. 11 is a block diagram showing a configuration of a mobile terminal device according to Embodiment 9.
- a feature of the present embodiment is that a group including subcarriers corresponding to DC component data of an analog circuit is subjected to retransmission prior to another group.
- the retransmission request of the group including the subcarrier corresponding to the DC component tends to increase.
- the group including the subcarrier corresponding to the DC component data of the analog circuit is to be retransmitted in priority to other groups.
- determining section 901 a determines whether retransmission is necessary for a group including a subcarrier corresponding to a DC component, and determining section 901 b determines whether or not another group is included in another group. Make a decision on the loop.
- the threshold value 8 used in the judgment unit 9 O la smaller than the threshold value 9 used in the judgment unit 9 0 1 b, the group including the subcarrier corresponding to the DC component can be easily targeted for retransmission. I do.
- FIG. 12 is a block diagram showing a configuration of the mobile terminal device according to Embodiment 10.
- a feature of the present embodiment is that, among all subcarriers, a group including subcarriers located at both ends on the frequency axis (that is, a subcarrier having the lowest frequency and a subcarrier having the highest frequency among all subcarriers) In other words, priority is given to retransmission before other groups.
- Subcarriers located at both ends on the frequency axis have worse error rate characteristics than other subcarriers when there is adjacent channel interference or when there is a group delay deviation of an analog filter.
- a group including subcarriers located at both ends on the frequency axis is subject to retransmission in preference to other groups.
- determination section 1001a determines whether retransmission is necessary for a group including subcarriers located at both ends on the frequency axis.
- the threshold value 10 used in the decision unit 1001a is smaller than the threshold value 11 used in the decision unit 1001b, the subcarriers located at both ends on the frequency axis Are made easier to be retransmitted.
- FIG. 13 is a block diagram showing a configuration of the mobile terminal device according to Embodiment 11.
- the feature of this embodiment is that a group including subcarriers located at both ends on the frequency axis or a group including subcarriers corresponding to DC component data As for (2), it is to make the multi-value in the multi-value modulation smaller than the other groups so that errors are less likely to occur.
- the level of adjacent channel interference is large or the DC offset of the analog circuit is large, a group including subcarriers located at both ends on the frequency axis and a group including subcarriers corresponding to the DC component In this case, the number of retransmissions becomes very large, and the transmission efficiency may be extremely reduced.
- the group containing subcarriers located at both ends on the frequency axis, or the group containing subcarriers corresponding to DC component data use multivalued modulation in multilevel modulation. Make the group smaller so that errors are less likely to occur.
- Fig. 13 in the transmission system, two multi-level modulation sections 1101a and 1101b are provided, and the selection section 1102 selects which modulation signal to use. are doing.
- the multi-level modulation section 111a includes a 16 QAM modulator and the multi-level modulation section 110b includes a QPSK (Quadrature Phase Shift Keying) modulator, it is located at both ends on the frequency axis.
- the transmitting device when a group including a subcarrier corresponding to DC component data is to be retransmitted, the transmitting device (the base station device in the above-described embodiment) responds to the DC component. Transmit only subcarriers.
- DC component data of analog circuits is very important, and quality degradation is a particular problem.
- the amount of retransmittable data may be considerably limited.
- group 2 is a group that includes subcarriers corresponding to direct current (DC) component data. If group 2 is to be retransmitted, first the subcarriers corresponding to the direct current (DC) component data (Only the symbol DSB is attached in the figure) is targeted for retransmission.
- DC direct current
- the present invention focuses on the characteristics of multicarrier transmission represented by OFDM, introduces a new method of dividing subcarriers into groups, and using a subcarrier group belonging to one group as a retransmission unit. Achieve an ARQ scheme suitable for practical use.
- the present invention is effective for realizing high-speed mobile communication (high-speed mobile multimedia communication).
- the reception level included in each group is set to a predetermined standard.
- the number of carriers less than S is determined, and whether or not it exceeds a predetermined threshold is specified, and the group to be retransmitted is specified. Since only a simple comparison process with a predetermined criterion or threshold value is required for each group, the retransmission process is simplified, thereby preventing the circuit from becoming complicated.
- the receiving device discards the data corresponding to the group for which retransmission is requested from among the data received first, temporarily retains the data of the other groups, and returns an error as a result of the retransmission.
- the data can be combined with the temporarily stored data and output. Since the processing of the received data is also simple, the present invention is also easy to realize in this regard. '' The present specification is based on Japanese Patent Application No. 2002-09974668 filed on March 29, 2002. All this content is included here. Industrial applicability
- the present invention can be applied to a mobile terminal device and a base station device used in a wireless communication system.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Artificial Intelligence (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/484,951 US7269774B2 (en) | 2002-03-29 | 2003-03-19 | Data receiving apparatus, data transmitting apparatus and retransmission request method |
EP03710414.8A EP1492258B1 (en) | 2002-03-29 | 2003-03-19 | Method of data retransmission in multi-carrier transmission and communication apparatus having data retransmission control device |
JP2003581390A JP4287751B2 (ja) | 2002-03-29 | 2003-03-19 | マルチキャリア伝送におけるデータ再送方法およびデータ再送制御装置を備えた通信装置 |
AU2003221423A AU2003221423A1 (en) | 2002-03-29 | 2003-03-19 | Method of data retransmission in multi-carrier transmission and communication apparatus having data retransmission control device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-097468 | 2002-03-29 | ||
JP2002097468 | 2002-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003084108A1 true WO2003084108A1 (fr) | 2003-10-09 |
Family
ID=28671919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/003290 WO2003084108A1 (fr) | 2002-03-29 | 2003-03-19 | Procede de retransmission de donnees dans un systeme de transmission et de communication a porteuses multiples presentant un dispositif de controle de retransmission de donnees |
Country Status (6)
Country | Link |
---|---|
US (1) | US7269774B2 (ja) |
EP (1) | EP1492258B1 (ja) |
JP (1) | JP4287751B2 (ja) |
CN (1) | CN100514895C (ja) |
AU (1) | AU2003221423A1 (ja) |
WO (1) | WO2003084108A1 (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006106675A1 (ja) * | 2005-04-01 | 2006-10-12 | Ntt Docomo, Inc. | 無線通信装置及び無線通信方法 |
WO2007052766A1 (ja) * | 2005-11-04 | 2007-05-10 | Matsushita Electric Industrial Co., Ltd. | マルチキャリア通信におけるサブバンド設定方法および無線通信基地局装置 |
WO2007148732A1 (ja) * | 2006-06-20 | 2007-12-27 | Panasonic Corporation | 符号誤り検出装置、無線システム、及び誤り検出方法 |
JP2008538061A (ja) * | 2005-03-29 | 2008-10-02 | クゥアルコム・インコーポレイテッド | 無線通信における高速データ伝送のための方法及び装置 |
US7545732B2 (en) | 2003-08-22 | 2009-06-09 | Samsung Electronics Co., Ltd. | Apparatus and method for assigning sub-carriers in an orthogonal frequency division multiplex system |
JP2009527958A (ja) * | 2006-02-24 | 2009-07-30 | パナソニック株式会社 | 無線通信システムにおけるパケット・スケジューリングを用いたリソース・ブロック候補選択技法 |
JP2010525723A (ja) * | 2007-04-26 | 2010-07-22 | サムスン エレクトロニクス カンパニー リミテッド | 無線通信システムにおけるackchリソース割当方法及び装置 |
JP2011135602A (ja) * | 2003-08-20 | 2011-07-07 | Panasonic Corp | 送信装置及び送信方法 |
JP2013545339A (ja) * | 2010-10-04 | 2013-12-19 | マーベル ワールド トレード リミテッド | Wlan用の圧縮フィードバックフォーマット |
WO2014041973A1 (ja) * | 2012-09-11 | 2014-03-20 | 三菱電機株式会社 | Ofdm受信装置及びofdm受信方法 |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7110351B2 (en) * | 2000-12-19 | 2006-09-19 | Nortel Networks Limited | Enhanced ARQ with OFDM modulation symbols |
JP2003008553A (ja) * | 2001-06-22 | 2003-01-10 | Mitsubishi Electric Corp | 送信機、受信機、送受信機および通信システム |
US7782894B2 (en) * | 2003-09-12 | 2010-08-24 | Nokia Corporation | Ultra-wideband/low power communication having a dedicated removable memory module for fast data downloads—apparatus, systems and methods |
US7499674B2 (en) * | 2003-09-12 | 2009-03-03 | Nokia Corporation | Method and system for repeat request in hybrid ultra wideband-bluetooth radio |
US20050207345A1 (en) * | 2004-03-22 | 2005-09-22 | Onggosanusi Eko N | Hybrid ARQ schemes for a multi-carrier communications system |
US7697893B2 (en) * | 2004-06-18 | 2010-04-13 | Nokia Corporation | Techniques for ad-hoc mesh networking |
KR20070085573A (ko) * | 2004-11-30 | 2007-08-27 | 마츠시타 덴끼 산교 가부시키가이샤 | 송신 제어 프레임 생성 장치, 송신 제어 프레임 처리 장치,송신 제어 프레임 생성 방법 및 송신 제어 프레임 처리방법 |
MY149491A (en) * | 2005-03-29 | 2013-09-13 | Qualcomm Inc | Method and apparatus for high rate data transmission in wireless communication |
US8737402B2 (en) * | 2005-05-11 | 2014-05-27 | Telefonaktiebolaget L M Ericsson (Publ) | Multi-carrier scheduling |
WO2007069406A1 (ja) * | 2005-12-15 | 2007-06-21 | Mitsubishi Electric Corporation | 通信システム、送信側通信装置および受信側通信装置 |
KR101276839B1 (ko) | 2006-10-02 | 2013-06-18 | 엘지전자 주식회사 | 다중 반송파 시스템에서의 재전송 방법 |
CN103220113B (zh) * | 2006-12-22 | 2017-02-22 | 富士通株式会社 | 无线通信方法及基站和用户终端 |
US8386892B1 (en) * | 2007-11-05 | 2013-02-26 | Massachusetts Institute Of Technology | Partial packet recovery for wireless networks |
US20090168708A1 (en) * | 2007-12-26 | 2009-07-02 | Motorola, Inc. | Techniques for maintaining quality of service for connections in wireless communication systems |
AU2009267791B2 (en) * | 2008-07-07 | 2015-01-29 | Commonwealth Scientific And Industrial Research Organisation | Parallel packet transmission |
CN102396176B (zh) * | 2009-04-17 | 2015-07-15 | Lg电子株式会社 | 用于检测来自转发器的harq/nack反馈信号的方法 |
CN102055570B (zh) * | 2009-11-10 | 2014-12-17 | 华为技术有限公司 | 半静态调度数据的传输方法及装置 |
CN102571664A (zh) * | 2010-12-30 | 2012-07-11 | 中国移动通信集团公司 | 降低多载波通信系统中直流干扰的方法和装置 |
US9225453B2 (en) * | 2013-04-09 | 2015-12-29 | Futurewei Technologies, Inc. | Optimizing optical systems using code division multiple access and/or orthogonal frequency-division multiplexing |
US9509444B2 (en) * | 2014-03-20 | 2016-11-29 | Infineon Technologies Ag | Efficient checksum communication between devices |
US9210015B2 (en) | 2014-03-20 | 2015-12-08 | Infineon Technologies Ag | Edge-based communication |
US9356737B2 (en) * | 2014-03-26 | 2016-05-31 | Keysight Technologies, Inc. | Retry buffer and method of performing retry operation using retry buffer |
US9762419B2 (en) | 2014-08-13 | 2017-09-12 | Infineon Technologies Ag | Edge-based communication with a plurality of slave devices |
JP2017046319A (ja) * | 2015-08-28 | 2017-03-02 | 富士通株式会社 | 伝送装置およびリトライ方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07254915A (ja) * | 1994-03-15 | 1995-10-03 | Toshiba Corp | 階層的直交周波数多重伝送方式および送受信装置 |
JPH07321765A (ja) * | 1994-05-30 | 1995-12-08 | Nippon Hoso Kyokai <Nhk> | 階層化変調方式および送受信装置 |
JPH1155206A (ja) * | 1997-08-07 | 1999-02-26 | Nippon Telegr & Teleph Corp <Ntt> | 誤り補償方法およびマルチキャリア伝送装置 |
JPH11252056A (ja) * | 1998-03-03 | 1999-09-17 | Nippon Telegr & Teleph Corp <Ntt> | データ通信装置 |
JP2000031944A (ja) * | 1998-07-07 | 2000-01-28 | Matsushita Electric Ind Co Ltd | 送信装置並びに受信装置及びデータ伝送方法 |
JP2000224140A (ja) * | 1999-02-03 | 2000-08-11 | Matsushita Electric Ind Co Ltd | 直交周波数分割多重装置 |
JP2001077788A (ja) * | 1999-09-07 | 2001-03-23 | Sony Corp | 送信装置、受信装置、通信システム、送信方法、受信方法及び通信方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03107528A (ja) | 1989-09-21 | 1991-05-07 | Mazda Motor Corp | ターボ過給機付エンジンの制御装置 |
DE69736684T2 (de) * | 1996-01-23 | 2007-09-13 | Ntt Mobile Communications Network Inc. | Kommunikationsanordnung und Übertragungsstation mit Fehlerdetektion und Wiederübertragung |
JP3722969B2 (ja) * | 1998-01-08 | 2005-11-30 | 株式会社東芝 | 再送制御方法及び再送制御装置 |
JP3618600B2 (ja) * | 1999-09-28 | 2005-02-09 | 株式会社東芝 | 無線通信システム、無線通信方法、無線基地局、および無線端末局 |
US6678854B1 (en) * | 1999-10-12 | 2004-01-13 | Ericsson, Inc. | Methods and systems for providing a second data signal on a frame of bits including a first data signal and an error-correcting code |
-
2003
- 2003-03-19 US US10/484,951 patent/US7269774B2/en not_active Expired - Lifetime
- 2003-03-19 AU AU2003221423A patent/AU2003221423A1/en not_active Abandoned
- 2003-03-19 JP JP2003581390A patent/JP4287751B2/ja not_active Expired - Fee Related
- 2003-03-19 WO PCT/JP2003/003290 patent/WO2003084108A1/ja active Application Filing
- 2003-03-19 EP EP03710414.8A patent/EP1492258B1/en not_active Expired - Fee Related
- 2003-03-19 CN CNB038009153A patent/CN100514895C/zh not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07254915A (ja) * | 1994-03-15 | 1995-10-03 | Toshiba Corp | 階層的直交周波数多重伝送方式および送受信装置 |
JPH07321765A (ja) * | 1994-05-30 | 1995-12-08 | Nippon Hoso Kyokai <Nhk> | 階層化変調方式および送受信装置 |
JPH1155206A (ja) * | 1997-08-07 | 1999-02-26 | Nippon Telegr & Teleph Corp <Ntt> | 誤り補償方法およびマルチキャリア伝送装置 |
JPH11252056A (ja) * | 1998-03-03 | 1999-09-17 | Nippon Telegr & Teleph Corp <Ntt> | データ通信装置 |
JP2000031944A (ja) * | 1998-07-07 | 2000-01-28 | Matsushita Electric Ind Co Ltd | 送信装置並びに受信装置及びデータ伝送方法 |
JP2000224140A (ja) * | 1999-02-03 | 2000-08-11 | Matsushita Electric Ind Co Ltd | 直交周波数分割多重装置 |
JP2001077788A (ja) * | 1999-09-07 | 2001-03-23 | Sony Corp | 送信装置、受信装置、通信システム、送信方法、受信方法及び通信方法 |
Non-Patent Citations (1)
Title |
---|
TSUBAKI ET AL., OFDM SUBCHANNEL-INFORMATION AIDED ARQ SCHEME FOR BROADBAND WIRELESS ACCESS SYSTEMS |
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011135602A (ja) * | 2003-08-20 | 2011-07-07 | Panasonic Corp | 送信装置及び送信方法 |
US7545732B2 (en) | 2003-08-22 | 2009-06-09 | Samsung Electronics Co., Ltd. | Apparatus and method for assigning sub-carriers in an orthogonal frequency division multiplex system |
US9973293B2 (en) | 2005-03-29 | 2018-05-15 | Qualcomm Incorporated | Sending full channel quality indication reports on TDM channel in wireless communication |
US10313086B2 (en) | 2005-03-29 | 2019-06-04 | Qualcomm Incorporated | Sending full channel quality indication reports on TDM channel in wireless communication |
JP2008538061A (ja) * | 2005-03-29 | 2008-10-02 | クゥアルコム・インコーポレイテッド | 無線通信における高速データ伝送のための方法及び装置 |
US10944533B2 (en) | 2005-03-29 | 2021-03-09 | Qualcomm Incorporated | Method and apparatus for high rate data transmission in wireless communication |
US8693383B2 (en) | 2005-03-29 | 2014-04-08 | Qualcomm Incorporated | Method and apparatus for high rate data transmission in wireless communication |
US9407418B2 (en) | 2005-03-29 | 2016-08-02 | Qualcomm Incorporated | Channelizing packet acknowledgments for multiple data channels in wireless communication |
US11251926B2 (en) | 2005-03-29 | 2022-02-15 | Qualcomm Incorporated | Sending full channel quality indication reports on TDM channel in wireless communication |
US9350514B2 (en) | 2005-03-29 | 2016-05-24 | Qualcomm Incorporated | Sending full channel quality indication reports on TDM channel in wireless communication |
JP2012100283A (ja) * | 2005-03-29 | 2012-05-24 | Qualcomm Inc | 無線通信における高速データ伝送のための方法及び装置 |
US9319201B2 (en) | 2005-03-29 | 2016-04-19 | Qualcomm Incorporated | Reverse link pilot with selective gating in wireless communication |
US8108746B2 (en) | 2005-04-01 | 2012-01-31 | Ntt Docomo, Inc. | Radio communications apparatus and radio communications method |
WO2006106675A1 (ja) * | 2005-04-01 | 2006-10-12 | Ntt Docomo, Inc. | 無線通信装置及び無線通信方法 |
US8787291B2 (en) | 2005-11-04 | 2014-07-22 | Panasonic Intellectual Property Corporation Of America | Method for setting subbands in multicarrier communication, and radio communication mobile station apparatus |
US8259658B2 (en) | 2005-11-04 | 2012-09-04 | Panasonic Corporation | Method for setting subbands in multicarrier communication, and radio communication base station apparatus |
US9265041B2 (en) | 2005-11-04 | 2016-02-16 | Panasonic Intellectual Property Corporation Of America | Integrated circuit for setting subbands in multicarrier communication for radio communication base station apparatus |
US9036595B2 (en) | 2005-11-04 | 2015-05-19 | Panasonic Intellectual Property Corporation Of America | Method for setting subbands in multicarrier communication, and radio communication mobile station apparatus |
WO2007052766A1 (ja) * | 2005-11-04 | 2007-05-10 | Matsushita Electric Industrial Co., Ltd. | マルチキャリア通信におけるサブバンド設定方法および無線通信基地局装置 |
JP2012010348A (ja) * | 2006-02-24 | 2012-01-12 | Panasonic Corp | 無線通信システムにおけるパケット・スケジューリングを用いたリソース・ブロック候補選択技法 |
US10993210B2 (en) | 2006-02-24 | 2021-04-27 | Sun Patent Trust | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US8644226B2 (en) | 2006-02-24 | 2014-02-04 | Panasonic Corporation | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US9100981B2 (en) | 2006-02-24 | 2015-08-04 | Panasonic Intellectual Property Corporation Of America | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US11671966B2 (en) | 2006-02-24 | 2023-06-06 | Sun Patent Trust | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US10321438B2 (en) | 2006-02-24 | 2019-06-11 | Sun Patent Trust | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US9655085B2 (en) | 2006-02-24 | 2017-05-16 | Sun Patent Trust | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
US9380573B2 (en) | 2006-02-24 | 2016-06-28 | Sun Patent Trust | Resource block candidate selection technique employing packet scheduling in wireless communication systems |
JP2009527958A (ja) * | 2006-02-24 | 2009-07-30 | パナソニック株式会社 | 無線通信システムにおけるパケット・スケジューリングを用いたリソース・ブロック候補選択技法 |
US8406346B2 (en) | 2006-06-20 | 2013-03-26 | Panasonic Corporation | Code error detecting device, wireless system and code error detecting method |
WO2007148732A1 (ja) * | 2006-06-20 | 2007-12-27 | Panasonic Corporation | 符号誤り検出装置、無線システム、及び誤り検出方法 |
CN101433041B (zh) * | 2006-06-20 | 2013-06-12 | 松下电器产业株式会社 | 误码检测装置、无线系统和误码检测方法 |
JP2008028999A (ja) * | 2006-06-20 | 2008-02-07 | Matsushita Electric Ind Co Ltd | 符号誤り検出装置、無線システム、及び誤り検出方法 |
JP2010525723A (ja) * | 2007-04-26 | 2010-07-22 | サムスン エレクトロニクス カンパニー リミテッド | 無線通信システムにおけるackchリソース割当方法及び装置 |
US9917681B2 (en) | 2007-04-26 | 2018-03-13 | Samsung Electronics Co., Ltd | Method and apparatus for allocating ACKCH resources in a wireless communication system |
US9450733B2 (en) | 2007-04-26 | 2016-09-20 | Samsung Electronics Co., Ltd | Method and apparatus for allocating ACKCH resources in a wireless communication system |
US9425941B2 (en) | 2007-04-26 | 2016-08-23 | Samsung Electronics Co., Ltd | Method and apparatus for allocating ACKCH resources in a wireless communication system |
JP2012110023A (ja) * | 2007-04-26 | 2012-06-07 | Samsung Electronics Co Ltd | 無線通信システムにおけるack/nack信号の送受信方法及び装置 |
US8880084B2 (en) | 2007-04-26 | 2014-11-04 | Samsung Electronics Co., Ltd | Method and apparatus for allocating ACKCH resources in a wireless communication system |
US9712365B2 (en) | 2010-10-04 | 2017-07-18 | Marvell World Trade Ltd. | Compressed feedback format for WLAN |
US10075319B2 (en) | 2010-10-04 | 2018-09-11 | Marvell World Trade Ltd. | Compressed feedback format for WLAN |
JP2013545339A (ja) * | 2010-10-04 | 2013-12-19 | マーベル ワールド トレード リミテッド | Wlan用の圧縮フィードバックフォーマット |
JP5865502B2 (ja) * | 2012-09-11 | 2016-02-17 | 三菱電機株式会社 | Ofdm受信装置及びofdm受信方法 |
WO2014041973A1 (ja) * | 2012-09-11 | 2014-03-20 | 三菱電機株式会社 | Ofdm受信装置及びofdm受信方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2003084108A1 (ja) | 2005-08-04 |
JP4287751B2 (ja) | 2009-07-01 |
CN100514895C (zh) | 2009-07-15 |
EP1492258A4 (en) | 2010-08-11 |
EP1492258A1 (en) | 2004-12-29 |
CN1547816A (zh) | 2004-11-17 |
EP1492258B1 (en) | 2017-04-19 |
AU2003221423A1 (en) | 2003-10-13 |
US20040255220A1 (en) | 2004-12-16 |
US7269774B2 (en) | 2007-09-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4287751B2 (ja) | マルチキャリア伝送におけるデータ再送方法およびデータ再送制御装置を備えた通信装置 | |
US9860043B2 (en) | Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme | |
RU2289210C2 (ru) | Устройство и способ передачи/приема данных в системе связи, использующей схему множественного доступа | |
CN101124763B (zh) | 用于对确认进行高效传输的装置和方法 | |
US7355960B2 (en) | Channel estimation apparatus and method for adaptive channel allocation in an orthogonal frequency division multiple access system | |
CN1879325B (zh) | 用于在无线通信系统中发送和接收公共控制信息的设备和方法 | |
CN101120531B (zh) | 用于对递增冗余发射作出选择性响应的装置和方法 | |
RU2433555C2 (ru) | Переменное кодирование и модулирование подканала мультиплексирования с ортогональным частотным разделением | |
US20050281226A1 (en) | Apparatus and method for feedback of channel quality information in communication systems using an OFDM scheme | |
EP1533966A2 (en) | Apparatus and method for transmitting/receiving channel quality information of subcarriers in an orthogonal frequency division multiplexing system | |
EP1253759A1 (en) | Radio transmitter, radio receiver, and multilevel modulation communication system | |
EP1533926B1 (en) | Radio transmission device, radio reception device, and method for selecting transmission cancel subcarriers | |
US20060176803A1 (en) | Apparatus and method for transmitting fast feedback information in a wireless communication system | |
CN110876128B (zh) | 一种被用于无线通信的节点中的方法和装置 | |
Hijaz et al. | Exploiting OFDM systems for covert communication | |
WO2007081145A1 (en) | Method and apparatus for time multiplexing uplink data and uplink signaling information in an sc-fdma system | |
WO2006109435A1 (ja) | 無線通信装置及び無線通信方法 | |
CN101636996A (zh) | 无线发送装置和无线接收装置 | |
WO2008095334A1 (en) | Peak to average power ratio reduction in multi- carrier systems | |
JP2012519403A (ja) | 伝送チャンネルの品質を信号伝達する方法 | |
KR101650573B1 (ko) | 다중 사용자 ofdm 시스템의 적응적 자원 할당 방법 및 장치 | |
US8064327B2 (en) | Adaptive data multiplexing method in OFDMA system and transmission/reception apparatus thereof | |
WO2008097000A1 (en) | Method and apparatus for determining reverse transmission power of mobile station in an orthogonal frequency division multiplexing system | |
WO2006064740A1 (ja) | Ofdm送信装置、ofdm受信装置及びofdm通信方法 | |
KR100929067B1 (ko) | 직교 주파수 분할 다중 접속 시스템에서 데이터 다중화 방법 및 그를 이용한 송수신장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003581390 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10484951 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2003710414 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003710414 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038009153 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2003710414 Country of ref document: EP |