WO2004114620A1 - 無線通信装置 - Google Patents
無線通信装置 Download PDFInfo
- Publication number
- WO2004114620A1 WO2004114620A1 PCT/JP2004/008687 JP2004008687W WO2004114620A1 WO 2004114620 A1 WO2004114620 A1 WO 2004114620A1 JP 2004008687 W JP2004008687 W JP 2004008687W WO 2004114620 A1 WO2004114620 A1 WO 2004114620A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- information
- channel
- transmission
- reception
- station
- Prior art date
Links
- 238000004891 communication Methods 0.000 title claims abstract description 134
- 230000005540 biological transmission Effects 0.000 claims abstract description 282
- 238000000034 method Methods 0.000 claims abstract description 58
- 230000010365 information processing Effects 0.000 claims abstract description 36
- 238000005259 measurement Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 40
- 230000006870 function Effects 0.000 description 21
- 239000000284 extract Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 230000004044 response Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000015654 memory Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- QXOQNNAWFUXKMH-UHFFFAOYSA-N 1-(Malonylamino)cyclopropanecarboxylic acid Chemical group OC(=O)CC(=O)NC1(C(O)=O)CC1 QXOQNNAWFUXKMH-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing 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
- H04L1/0001—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
- H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
-
- 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
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
Definitions
- the present invention relates to a wireless communication device that performs mutual communication by using a plurality of channels at the same time, and in particular, notifies a receiving wireless communication device of a reception state of a channel to be used.
- It relates to a wireless communication device that knows and selects an appropriate communication method and communication speed 1
- wireless communication devices have also been required to have a high communication speed. Therefore, in a wireless communication system, the communication speed is increased by increasing the transmission capacity using multiple channels.
- a path between a specific communication system and a specific terminal cut system that requires a wide transmission band includes: Communication of a plurality of channels is performed by allocating and securing a plurality of channels in advance (for example, see Patent Document 1).
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-2013
- the communication state changes depending on the environment such as obstacles and weather conditions (rainy weather, etc.).
- the communication state constantly changes with time due to movement.
- the above prior art does not disclose a technique for selecting a transmission method and a transmission rate suitable for a communication state when performing communication on a plurality of channels. Therefore, there was a problem that a transmission method and a transmission rate suitable for a communication state cannot be selected for each channel. .
- a modulation scheme with a high transmission rate is adopted, the transmission rate is high, but communication cannot be performed in a place where the state of the transmission path is poor, and the number of retransmission requests increases, resulting in a decrease in throughput. I will.
- a modulation method that can communicate even when the state of the transmission path is poor is adopted, the communication speed will decrease, and the merit of increasing the transmission capacity using multiple channels will be reduced.
- the present invention has been made in view of the above, and provides a wireless communication apparatus capable of selecting a transmission method and a transmission speed corresponding to each channel when performing mutual communication using a plurality of channels. It is an object. '' Disclosure of the Invention
- a wireless communication device is applied to a wireless communication system, and uses one or more available channels to communicate with a partner wireless communication device in the wireless communication system.
- a wireless communication device that performs communication, and when receiving input reception signals of a plurality of channels of the wireless communication system, measures a reception state of the input reception signals of each channel, and based on these measurement results,
- a reception processing unit that generates own channel reception information of the channel, performs reception processing on the input reception signal to generate a decoded signal, and transmits data using two or more channels.
- a MAC section that generates a transmission frame for each channel using the same; a transmission processing section that generates a radio signal including each of the transmission frames; And a channel information processing unit for generating the own station feedback information into one or a plurality of the radio signals based on the own station feedback information. It is specially designed to transmit wireless signals.
- the reception processing section generates own station channel reception information based on the reception state of the input reception signal of each channel, and the channel information processing section generates the own station channel reception information generated by the reception processing section. Based on the information, the local station feed pack information is generated, and the generated local station feed pack information is input into a radio signal and transmitted.
- FIG. 1 is a schematic diagram showing a configuration of a wireless communication system to which the wireless communication device according to the present invention is applied
- FIG. 2 is a configuration of a transmission / reception function of the wireless communication device according to the first embodiment of the present invention.
- FIG. 3 is a block diagram showing a configuration of a transmission / reception function of the wireless communication apparatus according to the second embodiment of the present invention.
- FIG. 4 is a block diagram showing a wireless communication apparatus according to the third embodiment of the present invention.
- FIG. 5 is a block diagram illustrating a configuration of a transmission / reception function of a communication device.
- FIG. 5 is a block diagram illustrating a configuration of a transmission / reception function of a wireless communication device according to a fourth embodiment of the present invention.
- FIG. 1 is a schematic diagram showing a configuration of a wireless communication system to which the wireless communication device according to the present invention is applied
- FIG. 2 is a configuration of a transmission / reception function of the wireless communication device according to the first
- FIG. 7 is a block diagram illustrating a configuration of a transmission / reception function of a wireless communication device according to a fifth embodiment of the present invention.
- FIG. 7 is a flowchart illustrating a reception operation of the wireless communication device according to the fifth embodiment of the present invention.
- FIG. 8 is a flowchart for explaining a transmission operation of the wireless communication apparatus according to the fifth embodiment of the present invention.
- FIG. 9 is a flowchart illustrating a transmission / reception function of the wireless communication apparatus according to the sixth embodiment of the present invention.
- FIG. 10 is a block diagram showing the configuration, and FIG. 10 is a flowchart for explaining a transmission operation of the wireless communication apparatus according to the sixth embodiment of the present invention.
- FIG. 1 is a schematic diagram showing a configuration of a wireless communication system to which a wireless communication device according to the present invention is applied.
- the wireless communication system to which the wireless communication device according to the present invention is applied includes a plurality of (in this case, four, in this case, four, which perform mutual communication via the wireless area 5 using a plurality of (three in this case) channels.
- the number of channels is independent of the number of wireless communication devices in the wireless communication area).
- wireless communication devices 1 to 4 all have the same function.
- the channel of this wireless communication device for example, frequency, time, code, space In (MI MO (Multi Input Multi Output)), it shows the communication path set for communication.
- MI MO Multi Input Multi Output
- FIG. 2 is a block diagram showing a configuration of a transmission / reception function of wireless communication apparatus 1 according to Embodiment 1 of the present invention.
- the wireless communication apparatus 1 according to the first embodiment of the present invention has a reception apparatus including a plurality (three in this case) of reception channel processing units 110 to 130 corresponding to the number of channels usable by the own apparatus.
- a processing unit 10 a MAC (Media Access Control) unit 20, a channel information processing unit 30, and a plurality (three in this case) corresponding to the number of channels that can be used by the own device.
- a transmission processing unit 40 having transmission channel processing units 410-430 '.
- 'Reception channel processing section 110 receives an input reception signal of a corresponding channel and performs synchronization processing, demodulation processing and decoding processing. Further, the reception channel processing section 110 measures the reception level of the input reception signal of each channel. Then, the measured reception level or RSSI (Receive Signal Strength Indication), physical resources such as memory, buffer, CPU (Central Processing Unit), etc. by the processing of the own channel and control signals Local station channel reception information is generated based on the channel processing internal information. Receiving channel processing section 110 determines whether or not the input received signal includes feed pack information. Feedback information is information related to overall resources, such as channel reception status information, memory and CPU ⁇ buffer status.
- RSSI Receiveive Signal Strength Indication
- Physical resources such as memory, buffer, CPU (Central Processing Unit), etc.
- the reception channel processing units 120 and 130 have the same functions as the reception channel processing unit 110 and perform the same processing as the reception channel processing unit 110 on the corresponding channels.
- the MAC unit 20 controls the reception channel processing units 110 to 130, which are physical communication media, and performs processing such as protocol conversion and frame conversion on each decoded signal. Generate a receive frame. Also, the format is included in each decoded signal. It is determined whether or not feedback information is included.
- the MAC unit 20 performs processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame of each channel.
- the MAC unit 20 exchanges resource information with the channel information processing unit 30 and transmits each channel based on the feed pack information of each channel from the transmission source input from the channel information processing unit 30. Determine the method and transmission speed.
- the channel information processing unit 30 exchanges physical resources such as memories, buffers, and CPUs with control signals and resource information, which is a state resource inside the memory, and performs reception operations with the MAC unit 20.
- the processing section 110 generates own-station feedback information based on the own-station channel reception information and resource information input from the input section.
- the own-station feedback information may be all information determined based on the own-station channel reception information and resource information, or may be information collected and selected from the own-station channel reception information and resource information every time. Is also good.
- the channel information processing unit 30 determines whether or not each of the transmission source pack pack information input from the reception channel processing unit 110: L30 or the MAC unit 20 has the same content. judge. For example, if the CRC (Cyclic Redundancy Check) check is used, discard the one that failed the CRC check and use only the one that was normal, or Source feedback information. Use the one with the highest content that matches the content, or measure C / N (Carrier / Noise ratio) and D / U (Desired / Undesired ratio) for each channel. And most CRC (Cyclic Redundancy Check) check is used, discard the one that failed the CRC check and use only the one that was normal, or Source feedback information. Use the one with the highest content that matches the content, or measure C / N (Carrier / Noise ratio) and D / U (Desired / Undesired ratio) for each channel. And most C
- CRC Cyclic Redundancy Check
- the source feedback information of the channel with high ZN and D / U is adopted, or the weighting based on the certainty is combined with all information, and each source feedpack information is calculated based on the weighting. Adopt it.
- the channel information processing section 30 discards the source feedpack information of the erroneous channel as a result of the determination, and extracts the feedpack information of each channel from the correct source feedpack information.
- the transmission channel processing unit 410 transmits the channel transmission method and the channel based on the transmission control information. And transmission speed. Then, based on the selected transmission scheme and transmission rate, the transmission frame received from the MAC section 20 and the local station feed pack information input from the channel information processing section 30 are coded and modulated. Performs processing to generate wireless signals.
- the transmission channel processing units 420 and 430 have the same functions as the transmission channel processing unit 410, and perform the same processing as the transmission channel processing unit 410 on the corresponding channels.
- the reception channel processing units 110 to 130 receive the input reception signals of the corresponding channels, perform synchronization processing, demodulation processing, and decoding processing, and output the decoded signals to the MAC unit 20. Then, the reception level of the input reception signal of each channel is measured, and the own station channel reception information is generated based on the measured reception levels and the reception channel processing internal information. Then, it outputs the generated own-station channel reception information to channel information processing section 30. Further, the reception channel processing units 110 to 130 determine whether or not the input reception signal includes feedback information and determine whether or not the input reception signal includes the feed pack information. Then, it outputs the feed pack information in the input received signal to the channel information processing section 30 as source feedback information.
- the MAC section 20 performs processing such as protocol conversion and frame conversion on the decoded signals input from the reception channel processing sections 110 to 130 to generate a reception frame and outputs it to an upper layer. I do. Also, it is determined whether or not each decoded signal contains feed pack information. If feedback information is contained, the channel information processing is performed using the feed pack information in the decoded signal as source feedback information. Output to section 30.
- the channel information processing section 30 generates own station feedback information based on the own station channel reception information and resource information input from the receiving channel processing section 110 to 130, and generates the generated own station feed pack. information Copied and output to the transmission channel processing sections 410-43'0, and the respective transmission sources input from the reception channel processing sections 110-130 or the MAC section 20. It extracts accurate source feedback information from the feed pack information, and outputs the extracted feedback information of each channel to the MAC section 20.
- the MAC unit 20 generates transmission frames for each channel by performing processing such as protocol conversion and frame conversion on transmission frames input from the upper layer. Then, each of the generated transmission frames is output to transmission channel processing sections 410-430. Further, the MAC unit 20 exchanges resource information with the channel information processing unit 30, and based on the feed pack information of each channel from the transmission source input from the channel information processing unit 30, Determine the transmission method and transmission speed. Then, the transmission method and the transmission rate determined for each channel are output as transmission control information to the transmission channel processing sections 410-430.
- the transmission channel processing sections 410 to 430 select a channel transmission method and a transmission rate based on the respective transmission control information input from the MAC section 20. Then, based on the selected transmission method and transmission rate, coding processing and modulation processing are performed on the transmission frame input from the MAC section 20 and the own-station feedback information input from the channel information processing section 30. To generate a wireless signal. Then, the generated wireless signal is output.
- reception channel processing sections 110 to 130 generate own-station channel reception information based on the reception states of the respective input reception signals, and perform channel information processing.
- the section 30 generates the own station feed pack information based on the own station channel reception information and the resource information generated by the reception channel processing section 110-: I 30, and generates the generated own station feed pack. Since the information is inserted into the radio signal transmitted on the channel used for transmission, the status of each channel can be notified to the partner wireless communication device. Appropriate transmission method and transmission speed can be selected.
- the MAC section 20 Each local station feed pack inserted by the partner wireless communication device Since the transmission method and transmission rate of each channel are determined based on the information (the source feed pack information of the own device), it is possible to select the transmission method and transmission rate suitable for the state of each channel. Thus, retransmission requests can be suppressed to improve throughput and reduce communication delay.
- the feed pack information of each channel can be known. .
- Embodiment 2 of the present invention will be described with reference to FIG.
- the local station feed pack information is input to all channels.
- the second embodiment by limiting the channel into which the own-station feedback information is inserted, a wireless band necessary for notifying the other-side wireless communication device of the own-station's build-pack information is proposed.
- the wireless capacity can be increased.
- FIG. 3 is a block diagram showing a configuration 5 of a transmission / reception function of the wireless communication apparatus according to the second embodiment of the present invention.
- a selector 50 is added to the wireless communication device 1 of the first embodiment shown in FIG.
- Components having the same functions as those of the first embodiment are denoted by the same reference numerals, and redundant description will be omitted.
- the selector 50 is a channel for transmitting the own station feed-back information generated by the channel information processing section 30 based on the own station channel reception information input from the reception channel processing sections 110 to 130. To determine.
- the own station channel reception information is information such as C / U or D / U.
- the selector 50 determines the communication state of each channel from the local station channel reception information and selects the channel with the best communication state. In other words, from the local channel reception information of each channel, select which channel can be used to transmit the local station feedback information to notify the partner wireless communication device of the local station feed 5 pack information with high probability. I do.
- the selection method is not limited to this. For example, a specific number of specific channels may be used without using channel information.
- Receiving channel processing sections 110 to 130 Receive the input reception signals of the corresponding channels, perform synchronization processing, demodulation processing and decoding processing, and output the decoded signals to MAC section 20. At the same time, it generates own station channel reception information based on the reception level of each channel and the reception channel processing internal information. Then, it outputs the generated own-station channel reception information to channel information processing section 30 and selector 50. If the input received signal includes feed pack information, the reception channel processing sections 110 to 130 use the feed pack information as transmission source feedback information. Output to
- the MAC section 20 performs processing such as protocol conversion and frame conversion on the decoded signals input from the reception channel processing sections 110 to 130 to generate a reception frame and sends it to an upper layer. Output.
- the feed pack information in the decoded signal is output to the channel information processing section 30 as transmission source feedback information.
- the channel information processing unit 30 generates the own-station build-pack information based on the own-station channel reception information and resource information input from the reception-channel processing units 110 to 130, and generates the generated self-package information.
- the station feed pack information is output to the selector 50. Also, the feed-pack information of each channel of the source feedback information input from any of the reception channel processing units 110 to 130 or the MAC unit 20 is output to the MAC unit 20.
- the MAC unit 20 generates a transmission frame of each channel by performing processing such as protocol conversion and frame conversion on the transmission frame input from the upper layer. Then, each of the generated transmission frames is output to transmission channel processing sections 410-430. Also, the MAC unit 20 exchanges resource information with the channel information processing unit 30 and, based on the feed pack information of each channel from the transmission source input from the channel information processing unit 30, The transmission method and transmission speed of the transmission. Then, the transmission method and the transmission rate determined for each channel are used as transmission control information as the transmission channel. Output to the processing section 410-43.0.
- the selector 50 is a channel for transmitting the own-station feedback information generated by the channel information processing section 30 based on the own-station channel reception information input from the reception channel processing sections 110 to 130. To determine. Then, the local station feed pack information is output to the transmission channel processing unit corresponding to the determined channel.
- the transmission channel processing units 410 to 430 select the transmission method and transmission speed of the channel based on the respective transmission control information input from the MAC unit 20. Then, based on the selected transmission scheme and transmission rate, the transmission frame input from the MACC unit 20 is subjected to encoding processing and modulation processing to generate a radio signal. At that time, when the own-station feed pack information is input from the selector 50, the transmission frame and the own-station feed pack information are subjected to encoding and modulation processing to generate a radio signal. Then, the generated wireless signal is output.
- the channel information processing unit 30 generates the own station based on the own channel reception information input from the selector 50 receiving channel processing unit 110 to 130. Since the channel for transmitting the feedback information is determined and the channel for inserting the own station feedback information is limited, the radio band for notifying the other party's wireless communication device of the own station feedback information is reduced. An increase in wireless capacity can be realized.
- the selector 50 is configured to be independent in the second embodiment, the function of the selector 50 may be included in the channel information processing unit 30.
- FIG. 4 is a block diagram showing a configuration of a transmission / reception function of a wireless communication device according to a third embodiment of the present invention.
- the wireless communication device 1 according to the third embodiment includes a MAC unit 20a instead of the MAC unit 20a of the wireless communication device 1 according to the first embodiment shown in FIG.
- a channel processing controller section 60 (a channel information processing section in claims) is provided.
- the MAC section 20a performs processing such as protocol conversion and frame conversion on the decoded signals input from the reception channel processing sections 110 to 130, generates reception frames, and performs upper layer processing. And the address information (source address) in each received frame is output to the channel processing controller section 60. Further, the MAC unit 20a generates a transmission frame of each channel by performing processing such as protocol conversion and frame conversion on the transmission frame input from the upper layer.
- the channel processing controller section 60 belongs to the physical layer and performs timing control and feedback processing control of the reception processing section 10 and the transmission processing section 40 belonging to the same physical layer.
- the channel processing controller section 60 identifies the source address of the destination wireless communication device from each address information or the input / received signal of each channel, and associates the source address with the channel reception information of the own station. Create a station feed pack table. Specifically, it generates a local station feed pack table in which the source address and the local channel reception information of the receiving channel processing sections 110 to 130 are associated with each other. Further, the channel processing controller section 60 determines the transmission method and transmission rate of each channel based on the source feed pack information input from the reception channel processing sections 110 to 130.
- the determined transmission method and transmission rate are also registered in the own station feedback table for each channel corresponding to the source address.
- source feed pack information corresponding to the source address is registered, and upon transmission, the transmission method and transmission rate are determined based on the source feed pack information. You may do so.
- the reception channel processing units 110 to 130 receive the input reception signals of the corresponding channels, perform synchronization processing, demodulation processing and decoding processing, and transmit the decoded signals to the MAC unit 20a. Output, and generates own-station channel reception information based on the reception level of each channel and the reception-channel processing internal information. Then, the generated local station channel reception information is transmitted to the channel processing controller unit. Output to 60. Also, the reception channel processing units 110 to 130 determine whether or not the input received signal includes feedback information, and determine whether the input received signal includes feedback information. Then, the feed pack information in the reception input is output to the channel information processing section 30 as the source feed pack information.
- the MAC section 20a performs processing such as protocol conversion and frame conversion on the decoded signals input from the reception channel processing sections 110 to 130 to generate reception frames, and transmits the received frames to an upper layer. Output. Further, the MAC unit 20a outputs the source address in each received frame to the channel processing controller unit 60.
- the channel processing controller 60 identifies the source address of the destination wireless communication apparatus from each source address input from the MAC section 20a or the input reception signal of each channel, and transmits. Creates a local station feedback table that associates the original address with the local station channel reception information.
- the MAC unit 20a performs processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame for each channel. Then, each of the generated transmission frames is output to transmission channel processing sections 410-430. Further, the MAC section 20a outputs the destination address in each transmission frame to the channel processing controller section 60.
- the channel processing controller section 60 searches the own station feedback table using the destination address as a keyword, and determines the own station feedback table and the transmission method and transmission rate of each channel. When transmitting data to the source address when the local station feed pack information table was generated, search the local station feed pack table using the destination address of the transmission frame generated by the MAC section 20a as a keyword. do it.
- the channel processing controller section 60 outputs the own-station feed pack information, the transmission method, and the transmission rate determined for each channel to the corresponding transmission channel processing sections 410-440, respectively.
- the transmission channel processing sections 410 to 430 transmit the channel transmission scheme and transmission based on the respective transmission scheme and transmission rate from the channel processing controller section 60. Select the feed speed. Then, based on the selected transmission method and transmission rate, the transmission frame input from the MAC unit 20a and the own-station feedback information input from the channel processing controller unit 60 are converted into a code, It performs modulation processing to generate a radio signal. Then, the generated wireless signal is output.
- the MAC section 20a notifies the channel processing controller section 60 of the source address and the destination address, and the channel processing controller section 60 A self-station feedback table is generated in correspondence with the own-station feedback pack information, and at the time of transmission, the channel processing controller section 60 generates the own-station feedback pack information based on the self-station feedback table.
- the transmission method and transmission rate of each channel are determined, the processing can be performed in the physical layer, and it is possible to easily adapt to changes in the system beyond the MAC layer. '
- processing can be performed closed in the physical layer, for example, in the case of a system that returns a response frame to a transmission frame, local station feed pack information can be inserted into a part of the response frame, and By notifying the local station's feed pack information to the wireless communication device on the time side, high-speed feedback processing is possible even when the transmission path fluctuates severely and the radio signal of each channel is severely degraded.
- FIG. 5 is a block diagram showing a configuration of a transmission / reception function of radio communication apparatus 1 according to Embodiment 4 of the present invention.
- the channel information processing unit 30 of the wireless communication device 1 of the first embodiment shown in FIG. It has a MA C section 20b.
- the components having the same functions as those of the first embodiment are denoted by the same reference numerals, and overlapping description will be omitted.
- the MAC unit 20b extracts feedback information included in the decoded signals input from the reception channel processing units 110 to 130, respectively. Then, the own station channel reception information and the extracted feed pack information for each channel are transmitted. A self-station feedback information table corresponding to the original address is generated. Also M. Unit 2013 performs processing such as protocol conversion and frame conversion on the decoded signals input from reception channel processing units 110 to 130 to generate a received frame and outputs it to an upper layer .
- the MAC section 20b performs processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame of each channel.
- processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame of each channel.
- the own station feed pack information is inserted into each transmission frame, and the transmission method and transmission speed of each channel are determined.
- the reception channel processing units 110 to 130 receive the input reception signals of the corresponding channels, perform synchronization processing, demodulation processing, and decoding processing to generate decoded signals, and receive input signals of the respective channels. Then, based on the measured reception levels and the reception channel processing internal information, the own channel reception information is generated. The reception channel processing units 110 to 130 output the respective decoded signals and the own-station channel reception information to the MAC unit 20b.
- the MAC unit 20b extracts the feed pack information from the decoded signals input from the reception channel processing units 110 to 130, respectively. Then, a local station feedback information table is generated in which the local station channel reception information and the extracted feed pack information for each channel are associated with the source address. Further, the MAC section 2 Ob performs processing such as protocol conversion and frame conversion on the decoded signal from which the feedback information is extracted, generates a reception frame, and outputs the reception frame to the upper layer.
- the MAC unit 2 Ob performs processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame for each channel.
- the MAC section 2 Ob uses the destination address as a keyword and transmits its own station feed pack information.
- the information table is searched to extract the own channel reception information of each channel.
- self-station feed pack information is generated based on the self-station channel reception information corresponding to each channel, and the generated self-station feed pack information is inserted into a predetermined portion of a transmission frame of each channel.
- the local station feedback information table is searched using the destination address as a keyword, and the feedback information of each channel corresponding to the destination address is extracted.
- the transmission system and the transmission speed are determined based on the feedback information corresponding to each channel, and the determined transmission system and the transmission speed are output to the transmission channel processing units 410 to 430 as transmission speed information.
- the transmission channel processing units 410 to 430 select a channel transmission method and a transmission rate based on the respective transmission control information input from the MAC unit 20b. Then, based on the selected transmission method and transmission rate, the transmission frame input from the MAC section 2 Ob and the local station feedback information input from the channel information processing section 30 are determined. , An encoding process and a modulation process to generate a radio signal. Then, the generated wireless signal is output.
- the local station feed pack information table in which the local station channel reception information and the extracted feedback information for each channel are associated with the source address is generated by the MAC section 2 O b power. Since the local station's feedback information is inserted at an appropriate position in the transmission frame, the local station's own wireless communication device has no means to insert the own station's feedback information. Information can be notified, and a decrease in efficiency of the wireless communication device can be reduced. In addition, since the local station's feed pack information is notified in a configuration closed to the MAC layer and the transmission method and transmission speed can be determined. be able to.
- the local station's own station feedback information is included in a part of the response frame. It is possible to reduce the radio band for notifying the device and introduce feedback information to realize an increase in radio capacity, 2004/008687
- the transmission frame in which the own station feedback information is inserted may be all the transmission frames of each channel, or the channel for transmitting the own station feedback information may be determined based on the own station channel reception information. .
- FIG. 6 is a block diagram showing a configuration of a transmission / reception function of wireless communication apparatus 1 according to Embodiment 5 of the present invention.
- the wireless communication apparatus 1 according to the fifth embodiment includes a MAC section 20c instead of the MAC section 20b of the wireless communication apparatus 1 according to the fourth embodiment shown in FIG.
- the MAC section 20c extracts the source address from the decoded signals input from the receive channel processing sections 110 to 130, respectively, and performs the extracted source address and reception channel processing.
- a self-station feedback information table is created in which the self-station channel reception information notified from the units 110 to 130 corresponds to the self-station feedback information table.
- each decoded signal is a feedback frame notifying the own-station feedback information of the partner wireless communication apparatus
- the source address in the feed pack frame is extracted, and the source feed for each channel in the feed pack frame is extracted.
- a source buried pack information table is created that associates the pack information with the extracted source address. If the decoded signal is a normal frame, it performs processing such as protocol conversion and frame conversion on the decoded signal to generate a received frame and outputs it to the upper layer.
- the MAC section 20c At the time of transmission, when the transmission frame is a feedback frame, the MAC section 20c generates own station feedback information based on the own station channel reception information table, and uses the generated own station feed pack information as a feedback frame. insert. The MAC section 20c determines the transmission method and the transmission rate of each channel based on the source feed pack information table.
- the reception channel processing units 110 to 130 receive the input information of the corresponding channels, perform synchronization processing, demodulation processing, and decoding processing to generate decoded signals, and generate input signals of the respective channels.
- the reception level is measured, and the local station reception information is generated based on the measured reception levels and the reception channel processing internal information (steps S100 and S110).
- the reception channel processing units 1 and 10 to 130 output the respective decoded signals and the own-station channel reception information to the MAC unit 20c.
- the MAC unit 20c extracts the source address from the decoded signals input from the reception channel processing units 110 to 130 (step S120). Then, an own station feed pack information table is created in which the extracted source address and each own station channel reception information notified from the reception channel processing sections 110 to 130 are associated (step S130).
- the MAC unit 20c determines whether each decoded signal is a feedback frame for notifying the own-station feedback information of the partner wireless communication device (step S140). If each decoded signal is a feed-pack frame, the MAC unit 20c performs a predetermined feed-pack frame process such as extracting source feedback information from the decoded signal (step S150). Then, a source feed pack information table is created in which the extracted source feedback information is associated with the source address extracted from the decoded signal (step S160).
- the MAC unit 20c When each decoded signal is a normal frame, the MAC unit 20c performs a normal frame process in which a received frame is generated by performing processing such as protocol conversion and frame conversion on each decoded signal, and the received frame is output to a higher layer. Perform (Step S170).
- Transmission frame is feed pack frame
- the MAC section 20c searches the own station feedback information table using the extracted destination address as a keyword, and extracts the own station channel reception information of each channel.
- the own station feed pack information is generated from the extracted own station channel reception information of each channel (step S220).
- the generated self-station feedback information is inserted into the feed pack frame to generate a feed pack frame (step S230).
- the MAC unit 20c searches the source feedback information table using the extracted destination address as a keyword, and extracts the source feedpack information of each channel corresponding to the destination address. Then, the transmission system and the transmission speed are determined based on the feed pack information corresponding to each channel, and the determined transmission system and transmission speed are transmitted as transmission speed information to the transmission channel processing units 410 to 430. Output (Step S240).
- the transmission channel processing sections 410-430 are based on the respective transmission control information input from the MAC section 20c! /, Select the channel transmission method and transmission speed. Then, based on the selected transmission scheme and transmission rate, the transmission frame input from the MAC section 20c is subjected to encoding processing and modulation processing to generate a radio signal. Then, the generated wireless signal is output (step S250).
- the MAC unit 20c performs normal frame processing for generating a transmission frame for each channel by performing processing such as protocol conversion and frame conversion (step S260).
- the MAC unit 20c searches the source feed pack information table using the extracted destination address as a keyword, and extracts the source feedback information of each channel corresponding to the destination address. Then, the transmission method and the transmission rate are determined based on the build pack information corresponding to each channel, and the determined transmission method and transmission rate are used as transmission rate information as the transmission channel processing sections 410 to 4 Output to 30 (step S240).
- the transmission channel processing sections 410-430 select a channel transmission method and a transmission rate based on the respective transmission control information input from the MAC section 20c. So Then, based on the selected transmission method and transmission rate, the transmission frame input from the MAC section 20c is subjected to code processing and modulation processing to generate a radio signal. Then, the generated wireless signal is output (step S250).
- the fifth embodiment since a dedicated frame for transmitting own-station feedback information is provided, no change is required to the existing system, control and processing are simplified, and the other party's wireless communication is performed.
- the device can be notified of the feed-packet information of each channel, and a transmission method and a transmission speed suitable for each channel can be selected.
- FIG. 9 is a block diagram showing a configuration of a transmission / reception function of a wireless communication device according to a sixth embodiment of the present invention.
- the wireless communication apparatus 1 of the sixth embodiment includes a MAC section 20d instead of the MAC section 20c of the fifth embodiment shown in FIG.
- the components having the same functions as those of the fifth embodiment are denoted by the same reference numerals, and overlapping description will be omitted.
- the] section 201 has the same functions as those of the reception section of the MAC section 200c of the fifth embodiment, and further includes a local station feed pack information table and a source broadcast pack information table. Has the function of registering the creation time when creating the.
- the MAC unit 20d performs processing such as protocol conversion and frame conversion on a transmission frame input from an upper layer to generate a transmission frame of each channel.
- your own station feedback information tape Then, while inserting own-station feedback information into each transmission frame, the transmission system and transmission rate of each channel are determined.
- the reception channel processing units 110 to 130 receive the input information of the corresponding channels, perform synchronization processing, demodulation processing, and decoding processing to generate decoded signals, and receive input signals of the respective channels. Then, based on the measured reception levels and the reception channel processing internal information, the own station channel reception information is generated.
- the reception channel processing sections 110 to 130 output the respective decoded signals and the own-station channel reception information to the MAC section 20 cU. ⁇
- the MAC unit 20d extracts the source address from the decoded signals input from the reception channel processing units 110 to 130, respectively. Then, a local station feed pack information table is created in which the extracted source address, the local channel reception information notified from the receiving channel processing sections 110 to 130, and the current time are associated with each other.
- the MAC unit 20d determines whether or not feedback information is included in each decoded signal, and extracts feedback pack information from the decoded signal when the feedback information is included.
- the MAC unit 20d creates a source feed pack information table in which the source feedback information extracted from the decoded signal ⁇ , the extracted source address, and the current time are associated with each other.
- the MAC unit 20d performs processing such as protocol conversion and frame conversion on each decoded signal to generate a received frame and outputs it to the upper layer.
- the MAC section 20d extracts the destination address from the transmission frame input from the upper layer (step S300).
- the MAC unit 20d searches the own station feed pack information table using the extracted destination address as a keyword, and extracts the own station channel reception information of each channel and the creation time thereof (step S310).
- the MA C section 20d is based on the extracted creation time and current Calculate the difference from the time in the office Then, it is determined whether or not the calculation result is within a predetermined reference value (step S320). If the calculation result is within the predetermined reference value, the MAC unit 20d inserts the own-station feedback information from the extracted own-station channel reception information of each channel into a predetermined portion of the transmission frame ( Step S330). If the calculation result exceeds the predetermined reference value, the MAC section 20d determines that the current channel has not been received since the local station channel reception information of each channel has been created.
- the MAC unit 20d performs processing such as protocol conversion and frame conversion on the transmission frame to generate a transmission frame for each channel. Then, each generated transmission frame is output to transmission channel processing sections 410 to 4300.
- the MAC unit 20d searches the source feed-back information table using the extracted destination address as a keyword, and extracts the source feedback information of each channel and the creation time thereof (step S340). .
- the MAC unit 20d calculates a difference between the extracted creation time and the current time. Then, it is determined whether or not the calculation result is within a predetermined reference value (step S350). If the calculation result is within the predetermined reference value, the MAC unit 20d determines the transmission method and transmission speed of each channel based on the extracted source feed pack information (step S360) ). If the calculation result exceeds the predetermined reference value, the MAC section 20d determines that the current channel has not passed since the local channel reception information of each channel has been created.
- the MAC unit 20d notifies the transmission channel processing units 410 to 430 of the determined transmission method and transmission rate.
- the transmission channel processing units 410 to 430 select a channel transmission method and a transmission rate based on the respective transmission control information input from the MAC unit 20d. Then, based on the selected transmission scheme and transmission rate, the transmission frame input from the MAC section 20d is subjected to code Eich processing and modulation processing to generate a radio signal. Then, the generated wireless signal is output (step S380).
- the own station channel reception information table and the source feed pack information table are created, the creation times are registered, and the own station channel reception information and the source feed pack information are registered. Since the reliability is determined by comparing the time at which they were created with the current time, it is possible to use information suitable for temporal fluctuations in the state of the transmission path. It is possible to reduce unnecessary communication charges.
- the sixth embodiment has been described by taking as an example a case in which the own station feedback information is inserted into the transmission frame, the own station feed information in which the source address, the own channel reception information, and the current time are associated with each other is described. It is possible to apply to the first to fifth embodiments by creating a source information table in which the pack information table and the source information are associated with the extracted source address and the current time. It goes without saying that there is something.
- the reception processing unit generates the own-station channel reception information based on the reception state of the input reception signal of each channel, and the channel information processing unit
- the self-station feedback information is generated based on the self-station channel reception information generated by the unit, and the generated self-station feedback information is inserted into a radio signal and transmitted.
- the status of each channel can be notified to the device, and the partner wireless communication device can select a transmission method and a transmission speed suitable for the status of each channel.
- the wireless communication device is useful for a communication system that performs mutual communication by using a plurality of channels at the same time.
- the communication state can be changed due to obstacles, weather conditions, and the like. It is suitable for communication systems that have a certainty.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002497844A CA2497844A1 (en) | 2003-06-18 | 2004-06-15 | Radio communication apparatus |
US10/525,069 US7194240B2 (en) | 2003-06-18 | 2004-06-15 | Radio communication apparatus |
CN2004800008629A CN1701582B (zh) | 2003-06-18 | 2004-06-15 | 无线通信装置 |
EP04736884A EP1523147B1 (en) | 2003-06-18 | 2004-06-15 | Radio communication apparatus |
US11/715,870 US20070155393A1 (en) | 2003-06-18 | 2007-03-09 | Radio communication apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-173725 | 2003-06-18 | ||
JP2003173725A JP3970807B2 (ja) | 2003-06-18 | 2003-06-18 | 無線通信装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/715,870 Division US20070155393A1 (en) | 2003-06-18 | 2007-03-09 | Radio communication apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004114620A1 true WO2004114620A1 (ja) | 2004-12-29 |
Family
ID=33534730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008687 WO2004114620A1 (ja) | 2003-06-18 | 2004-06-15 | 無線通信装置 |
Country Status (7)
Country | Link |
---|---|
US (2) | US7194240B2 (ja) |
EP (1) | EP1523147B1 (ja) |
JP (1) | JP3970807B2 (ja) |
KR (1) | KR100611838B1 (ja) |
CN (1) | CN1701582B (ja) |
CA (1) | CA2497844A1 (ja) |
WO (1) | WO2004114620A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7508809B2 (en) * | 2003-05-16 | 2009-03-24 | Mitsubishi Electric Corporation | Base station and radio terminal |
US20090129358A1 (en) * | 2005-03-31 | 2009-05-21 | Nec Corporation | Communication Apparatus, Communication Method and Program |
JP4684146B2 (ja) * | 2006-03-27 | 2011-05-18 | 京セラ株式会社 | 移動局装置 |
WO2010064831A2 (en) * | 2008-12-01 | 2010-06-10 | Samsung Electronics Co., Ltd. | Method and system for optimizing measurement reporting mechanism in a layered protocol wireless network |
EP2269816A1 (en) * | 2009-06-17 | 2011-01-05 | Kuraray Europe GmbH | Interlayer film for laminated glass having IR-absorbing properties and low haze |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1079724A (ja) * | 1996-09-03 | 1998-03-24 | Toshiba Corp | 無線通信システム |
JP2002051099A (ja) * | 2000-07-31 | 2002-02-15 | Hamamatsu Photonics Kk | 送信装置、受信装置及び送受信システム |
EP1227603A1 (en) | 2000-08-21 | 2002-07-31 | Matsushita Electric Industrial Co., Ltd. | Communication terminal apparatus, base station apparatus and radio communication method |
US20030086515A1 (en) | 1997-07-31 | 2003-05-08 | Francois Trans | Channel adaptive equalization precoding system and method |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07111695B2 (ja) * | 1991-07-25 | 1995-11-29 | 株式会社メルコ | データ転送方法ならびにデータ送信装置および復元装置 |
US6778558B2 (en) * | 1998-02-23 | 2004-08-17 | Lucent Technologies Inc. | System and method for incremental redundancy transmission in a communication system |
US7590095B2 (en) * | 2000-02-14 | 2009-09-15 | Qualcomm Incorporated | Method and apparatus for power control of multiple channels in a wireless communication system |
US6996069B2 (en) * | 2000-02-22 | 2006-02-07 | Qualcomm, Incorporated | Method and apparatus for controlling transmit power of multiple channels in a CDMA communication system |
US7110378B2 (en) * | 2000-10-03 | 2006-09-19 | Wisconsin Alumni Research Foundation | Channel aware optimal space-time signaling for wireless communication over wideband multipath channels |
JP3652233B2 (ja) | 2000-10-19 | 2005-05-25 | シャープ株式会社 | 無線ネットワークシステム |
US7054631B2 (en) * | 2000-10-23 | 2006-05-30 | Denso Corporation | Enhancement of soft handoff in a mobile wireless network through the use of dynamic information feedback from mobile users |
EP1255369A1 (en) * | 2001-05-04 | 2002-11-06 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Link adaptation for wireless MIMO transmission schemes |
US7047016B2 (en) * | 2001-05-16 | 2006-05-16 | Qualcomm, Incorporated | Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system |
US7263123B2 (en) * | 2001-09-18 | 2007-08-28 | Broadcom Corporation | Fast computation of coefficients for a variable delay decision feedback equalizer |
KR100896682B1 (ko) * | 2002-04-09 | 2009-05-14 | 삼성전자주식회사 | 송/수신 다중 안테나를 포함하는 이동 통신 장치 및 방법 |
KR100899735B1 (ko) * | 2002-07-03 | 2009-05-27 | 삼성전자주식회사 | 이동 통신 시스템에서 적응적 전송 안테나 다이버시티장치 및 방법 |
US20040073361A1 (en) * | 2002-10-15 | 2004-04-15 | Assimakis Tzamaloukas | Enhanced mobile communication device, and transportation application thereof |
US7209467B2 (en) * | 2002-11-26 | 2007-04-24 | Texas Instruments Incorporated | Adaptive adjustment of backoff times in wireless network communications |
US7062232B2 (en) * | 2002-12-11 | 2006-06-13 | Qualcomm Incorporated | Switched antenna transmit diversity |
KR100526542B1 (ko) * | 2003-05-15 | 2005-11-08 | 삼성전자주식회사 | 이동 통신 시스템에서 다중안테나를 사용하는송신다이버시티 방식을 사용하여 데이터를 송수신하는장치 및 방법 |
KR100790092B1 (ko) * | 2003-08-18 | 2007-12-31 | 삼성전자주식회사 | 다중 사용자 다중 입력 다중 출력 방식을 사용하는 무선통신 시스템에서 자원 스케쥴링 장치 및 방법 |
-
2003
- 2003-06-18 JP JP2003173725A patent/JP3970807B2/ja not_active Expired - Lifetime
-
2004
- 2004-06-15 CN CN2004800008629A patent/CN1701582B/zh not_active Expired - Lifetime
- 2004-06-15 EP EP04736884A patent/EP1523147B1/en not_active Expired - Lifetime
- 2004-06-15 CA CA002497844A patent/CA2497844A1/en not_active Abandoned
- 2004-06-15 WO PCT/JP2004/008687 patent/WO2004114620A1/ja active IP Right Grant
- 2004-06-15 US US10/525,069 patent/US7194240B2/en not_active Expired - Lifetime
- 2004-06-15 KR KR1020057006403A patent/KR100611838B1/ko active IP Right Grant
-
2007
- 2007-03-09 US US11/715,870 patent/US20070155393A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1079724A (ja) * | 1996-09-03 | 1998-03-24 | Toshiba Corp | 無線通信システム |
US20030086515A1 (en) | 1997-07-31 | 2003-05-08 | Francois Trans | Channel adaptive equalization precoding system and method |
JP2002051099A (ja) * | 2000-07-31 | 2002-02-15 | Hamamatsu Photonics Kk | 送信装置、受信装置及び送受信システム |
EP1227603A1 (en) | 2000-08-21 | 2002-07-31 | Matsushita Electric Industrial Co., Ltd. | Communication terminal apparatus, base station apparatus and radio communication method |
Non-Patent Citations (1)
Title |
---|
See also references of EP1523147A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1523147A1 (en) | 2005-04-13 |
CN1701582B (zh) | 2010-04-28 |
JP2005012454A (ja) | 2005-01-13 |
JP3970807B2 (ja) | 2007-09-05 |
EP1523147A4 (en) | 2011-03-09 |
US20070155393A1 (en) | 2007-07-05 |
CA2497844A1 (en) | 2004-12-29 |
US7194240B2 (en) | 2007-03-20 |
KR20050072438A (ko) | 2005-07-11 |
EP1523147B1 (en) | 2012-04-04 |
US20060046731A1 (en) | 2006-03-02 |
CN1701582A (zh) | 2005-11-23 |
KR100611838B1 (ko) | 2006-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5415537B2 (ja) | ディスカバリ情報を通信および/または使用する方法および装置 | |
US8542706B2 (en) | Method and apparatus related to packet fragmentation and reconstruction | |
US8125961B2 (en) | Four way handshake for robust channel estimation and rate prediction | |
US8155247B2 (en) | Message decoding with a priori information and soft combining | |
US8948309B2 (en) | Method and system for redundancy-based decoding of video content in a wireless system | |
EP1626552B1 (en) | Multiple independent pathway communications | |
CN113055285B (zh) | 基于mptcp与网络编码的自适应数据传输方法 | |
JPWO2003101030A1 (ja) | データ誤り制御方法 | |
US20020119780A1 (en) | Communication method, radio network controller and base node for implementing this method | |
US8213349B2 (en) | Method and device for antenna tracking | |
US8369361B2 (en) | Early termination of low data rate traffic in a wireless network | |
US20070155393A1 (en) | Radio communication apparatus | |
KR20110086598A (ko) | 통신 결정 방법들 및 장치들 | |
MXPA05004047A (es) | Metodo y a aparato para transmitir y recibir un bloque de datos en un sistema de comunicacion. | |
JP2006512860A5 (ja) | ||
JP2006025325A (ja) | 移動通信システムにおけるパケット転送方法およびその通信システム | |
CN111769907B (zh) | 一种自组网通信的数据传输方法及装置 | |
KR20110086597A (ko) | 전송기 및/또는 수신기 통신 결정하기 위한 방법들 및 장치들 | |
US20140064085A1 (en) | Communication node and communication method | |
US8014382B2 (en) | Routing method, transceiver station and computer program for carrying out the method | |
JPH11177641A (ja) | 制御情報割当方法、制御方法、送信方法、受信方法、送信装置及び受信装置 | |
US7664140B2 (en) | Early termination of low data rate traffic in a wireless network | |
JP4126306B2 (ja) | 符号分割多元接続通信システム及び送信電力制御方法 | |
JP3675247B2 (ja) | 符号分割多元接続通信システム及び送信電力制御方法 | |
CN118488491A (zh) | 星闪数据接收方法及装置 |
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 BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG 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 NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY 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): GM KE LS MW MZ NA 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 PL 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: 2004736884 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2006046731 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10525069 Country of ref document: US |
|
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: 2497844 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20048008629 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2004736884 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057006403 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057006403 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10525069 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 1020057006403 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: JP |