WO2006100754A1 - 情報伝送装置、情報伝送方法 - Google Patents
情報伝送装置、情報伝送方法 Download PDFInfo
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- WO2006100754A1 WO2006100754A1 PCT/JP2005/005131 JP2005005131W WO2006100754A1 WO 2006100754 A1 WO2006100754 A1 WO 2006100754A1 JP 2005005131 W JP2005005131 W JP 2005005131W WO 2006100754 A1 WO2006100754 A1 WO 2006100754A1
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- Prior art keywords
- transmission
- rate
- reception
- information
- unit
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- 238000000034 method Methods 0.000 title claims description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 496
- 238000012544 monitoring process Methods 0.000 claims abstract description 66
- 238000004891 communication Methods 0.000 claims abstract description 29
- 230000010365 information processing Effects 0.000 claims abstract description 25
- 239000000470 constituent Substances 0.000 claims abstract 3
- 238000005259 measurement Methods 0.000 claims description 38
- 238000012360 testing method Methods 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000005457 optimization Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 4
- 230000003252 repetitive effect Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/25—Flow control; Congestion control with rate being modified by the source upon detecting a change of network conditions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0894—Packet rate
Definitions
- the present invention relates to an information transmission apparatus and an information transmission method for performing high-speed communication between components and controlling and monitoring the components.
- An information processing apparatus such as a server apparatus or a storage apparatus is provided with a control monitoring board, and the control monitoring board controls and monitors each board that is a component of the information processing apparatus. For this reason, the control monitoring board and other boards have a control monitoring interface and are connected by a dedicated transmission line to communicate for control monitoring.
- the control monitoring board and other boards have a control monitoring interface and are connected by a dedicated transmission line to communicate for control monitoring.
- data transmission speeds within and between information processing devices are increasing, and the information processing devices described above are used for control monitoring.
- multi-gigabit transmission systems that use high-speed data transmission exceeding lGbps are used.
- FIG. 10 is a block diagram showing an example of the configuration of a conventional information processing apparatus.
- This information processing device includes control monitoring transmission line 11, multi-gigabit transmission line 12, control monitoring board 131, crossbar switch board 132, CPU (Central Processing Unit) board 133, IO (Input / Output) control board 134, SCSI ( A small computer system interface (135) control board 135, a LAN (local area network) control board 136, and a USB (universal serial bus) control board 137 are provided.
- control monitoring transmission line 11 multi-gigabit transmission line 12
- control monitoring board 131 control monitoring board 131
- crossbar switch board 132 132
- CPU Central Processing Unit
- IO Input / Output
- SCSI A small computer system interface (135) control board 135, a LAN (local area network) control board 136, and a USB (universal serial bus) control board 137 are provided.
- CPU Central Processing Unit
- IO Input / Output
- SCSI A small computer system interface (135)
- the control monitoring board 131 controls the cross bus switch board 132, the CPU board 133, the IO control board 134, the SCSI control board 135, the LAN control board 136, and the USB control board 137, which are other components of the information processing apparatus. Monitor.
- the control monitoring board 131 includes a control monitoring interface 13, each board includes a control monitoring interface 13, and the control monitoring interfaces 13 are connected to each other via a control monitoring transmission line 11.
- each board is multi-gigabit for multi-gigabit transmission with other boards.
- a transmission interface 138 is provided.
- the multi-gigabit transmission interfaces 138 are connected by a multi-gigabit transmission line 12.
- FIG. 11 is a block diagram showing an example of the configuration of a conventional multi-gigabit transmission system.
- This multi-gigabit transmission system includes a backplane 21, a BP (backplane) connector 22, and boards 139a and 139b that are any of the components of the information processing apparatus.
- the boards 139a and 139b are provided with multi-gigabit transmission interfaces 138a and 138b, respectively.
- the multi-gigabit transmission interfaces 138a and 138b correspond to the multi-gigabit transmission interface 138 described above.
- the backplane 21 and the BP connector 22 are components of the multi-gigabit transmission path 12 described above, and the wiring length differs depending on the mounting slot of each board.
- Transmission data from the board 139a is transmitted by the multi-gigabit transmission interface 138a, received by the multi-gigabit transmission interface 138b via the multi-gigabit transmission path 12, and output as reception data to the board 139b.
- transmission data from the board 139b is transmitted by the multi-gigabit transmission interface 138b, received by the multi-gigabit transmission interface 138a via the multi-gigabit transmission path 12, and output to the board 139a as reception data.
- FIG. 12 is a block diagram showing an example of a configuration of a conventional multi-gigabit transmission interface.
- the multi-gigabit transmission interface 138 includes a transmission unit 41, a transmission parameter storage unit 42, a transmission parameter control unit 143, a reception unit 51, a reception parameter storage unit 52, and a reception parameter control unit 153.
- the transmission parameter control unit 143 sets transmission parameters in the transmission parameter storage unit 42.
- the transmission unit 41 adjusts the waveform of the transmission data input from the board in accordance with the transmission parameter of the transmission parameter storage unit 42 and transmits it to the multi-gigabit transmission path 12.
- Reception parameter control section 153 sets reception parameters in reception parameter storage section 52.
- the receiving unit 51 adjusts the waveform received from the multi-gigabit transmission path 12 in accordance with the reception parameter of the reception parameter storage unit 52, and outputs it as reception data to the board.
- control monitoring by the control monitoring board 131 may be performed at a low transmission speed, but the control monitoring transmission path 11 and the control monitoring interface 13 in each board are required for reliable communication. .
- IIC, USB, etc. are used for the control / monitoring transmission line 11, and the control / monitoring interface 13 requires a dedicated LSI and has a problem of congested wiring.
- the transmission parameters used by the transmitter 41 such as output amplitude, emphasis strength, drive impedance, AC / DC coupling selection, signal speed, etc.
- the equalizer settings, gains, etc. must be set to appropriate values.
- the appropriate setting values for each parameter differ depending on the board mounting slot and cable connection destination on the backplane.
- the appropriate setting values for each parameter differ depending on variations in component characteristics and changes in characteristics depending on temperature and power supply.
- the present invention has been made to solve the above-described problems, and realizes a control monitoring transmission system and a multi-gigabit transmission system with common hardware, and optimizes the multi-gigabit transmission system.
- An object is to provide an information transmission apparatus and an information transmission method that facilitate the process.
- the present invention provides an information processing apparatus including a control monitoring unit that controls and monitors a component, and includes information that is provided in the component and performs communication between the components.
- a transmission apparatus wherein transmission data is input at a first transmission rate or a second transmission rate lower than the first transmission rate, and the transmission data is input to the transmission parameter. And adjusting the received signal according to the reception parameter, the transmission unit for transmitting to the connected information transmission device as a transmission signal, the reception control unit for storing the reception parameter, and the information transmission device power of the connection destination. And a reception unit that outputs the received data at the first transmission rate or the second transmission rate.
- the transmission unit and the reception unit use the second transmission rate for the control and monitoring data.
- the transmission unit and the reception unit when any one of power-on, reset, and active insertion is performed in the component including the information transmission device, the transmission unit and the reception unit The communication at the second transmission rate is performed, and the communication at the first transmission rate is performed after the communication is completed.
- the transmission unit when the transmission data having the second transmission rate is input, uses the second transmission rate in the pattern of the first transmission rate.
- the transmission data is modulated and transmitted as a transmission signal, and the reception unit demodulates the reception signal of the second transmission rate modulated with the pattern of the first transmission rate, and The reception data is output.
- the transmission parameter includes any of output amplitude, emphasis strength, driving impedance, selection of AC / DC coupling, and transmission speed, and the reception parameter is It includes either an equalizer coefficient or gain.
- the transmission unit transmits a test pattern to the connection destination information transmission device at the first transmission rate, and the reception unit transmits the connection destination information transmission.
- the apparatus receives the test pattern, measures the error rate of the test pattern, transmits the error rate measurement result at the second transmission rate, receives the error rate measurement result, and
- the transmission control unit is characterized by changing a transmission parameter based on the measurement result of the error rate.
- the receiving unit receives a test pattern transmitted at the first transmission rate by a connection-destination information transmission device, and receives the received test pattern.
- An error rate is measured
- the reception control unit changes a reception parameter based on the measurement result of the error rate
- the transmission unit transmits the measurement result of the error rate at the second transmission rate to the connection destination. It transmits to the information transmission apparatus of this invention, It is characterized by the above-mentioned.
- the present invention provides an information transmission method for performing communication between components of an information processing device in an information processing device including a control monitoring unit that controls and monitors the components, and stores transmission parameters.
- Transmission control step transmission data is input at a first transmission rate or a second transmission rate lower than the first transmission rate, the transmission data is adjusted according to the transmission parameter, and a transmission destination signal is transmitted as a transmission signal.
- the received signal is adjusted according to the reception parameter, and the first transmission rate as reception data, or And a reception step of outputting at the second transmission rate.
- the transmission step and the reception step use the second transmission rate for the control and monitoring data. It is.
- the component may be powered on, When either setting or active insertion is performed, the transmission step and the reception step first perform communication at the second transmission rate, and after the communication is completed, communication at the first transmission rate. It is characterized by performing.
- the transmission step uses the second transmission rate in the pattern of the first transmission rate.
- the transmission data is modulated and transmitted as a transmission signal
- the reception step demodulates the reception signal of the second transmission rate modulated with the pattern of the first transmission rate, and the second transmission rate
- the received data is output.
- the transmission parameter includes any of output amplitude, emphasis intensity, driving impedance, selection of AC / DC coupling, and transmission speed
- the reception parameter is It includes either an equalizer coefficient or gain.
- the transmission step transmits a test pattern to the connection destination component at the first transmission rate
- the reception step includes the connection destination configuration.
- the element receives the test pattern, measures the error rate of the test pattern, and transmits the error rate measurement result at the second transmission rate, receives the error rate measurement result
- the transmission control step is characterized in that a transmission parameter is changed based on the measurement result of the error rate.
- the receiving step receives and receives the test pattern transmitted at the first transmission rate by the component at the connection destination.
- An error rate of a pattern is measured
- the reception control step changes a reception parameter based on the measurement result of the error rate
- the transmission step transmits the measurement result of the error rate at the second transmission rate. It is characterized by being transmitted to the previous component.
- FIG. 1 is a block diagram showing an example of a configuration of an information processing apparatus according to the present invention.
- FIG. 2 is a block diagram showing an example of a configuration of a multi-gigabit transmission system according to the present invention.
- FIG. 3 is a block diagram showing an example of the configuration of a multi-gigabit transmission interface according to the present invention.
- FIG. 4 is a flowchart showing an example of the operation of the multi-gigabit transmission interface according to the present invention.
- FIG. 5 is a flowchart showing an example of the operation of automatic tuning according to the present invention.
- FIG. 6 is a flowchart showing an example of operation of transmission parameter optimization according to the present invention.
- FIG. 7 is a flowchart showing an example of an operation of receiving parameter optimization according to the present invention.
- FIG. 8 is a waveform showing an example of a transmission operation in the low-speed transmission mode according to the present invention.
- FIG. 9 is a waveform showing an example of reception operation in the low-speed transmission mode according to the present invention.
- FIG. 10 is a block diagram illustrating an example of a configuration of a conventional information processing apparatus.
- FIG. 11 is a block diagram showing an example of a configuration of a conventional multi-gigabit transmission system.
- FIG. 12 is a block diagram showing an example of a configuration of a conventional multi-gigabit transmission interface.
- the information processing apparatus uses a multi-gigabit transmission in a multi-gigabit transmission interface and a multi-gigabit transmission line, thereby enabling a high-speed transmission mode that requires optimization of transmission parameters and reception parameters, By using lower transmission speed and transmission speed than gigabit transmission, it is possible to switch between low-speed transmission mode that eliminates the need for optimization of transmission parameters and reception parameters. Furthermore, the control monitoring interface and the control monitoring transmission line are reduced by performing control monitoring in this low-speed transmission mode.
- FIG. 1 is a block diagram showing an example of the configuration of the information processing apparatus according to the present invention.
- the same reference numerals as those in FIG. 10 denote the same or corresponding parts as those in FIG. 10, and the description thereof is omitted here.
- FIG. 1 includes a control monitoring board 31 instead of the control monitoring board 131, and a crossbar switchboard instead of the crossbar switchboard 132.
- a LAN control board 36 is provided instead of the USB control board 137, a USB control board 37 is provided instead of the USB control board 137, and a multi-gigabit transmission interface 38 is provided instead of the multi-gigabit transmission interface 138.
- the CPU board 33 and the control monitoring board 31 are connected by the control monitoring interface 13 and the control monitoring transmission line 11 as in the conventional case.
- FIG. 2 is a block diagram showing an example of the configuration of the multi-gigabit transmission system according to the present invention. 2, the same reference numerals as those in FIG. 11 denote the same or corresponding parts as those in FIG. 11, and the description thereof is omitted here.
- FIG. 2 includes boards 39a and 39b instead of boards 139a and 139b.
- the boards 39a and 39b include multi-gigabit transmission interfaces 38a and 38b instead of the multi-gigabit transmission interfaces 138a and 138b, respectively.
- the multi-gigabit transmission interfaces 38a and 38b correspond to the multi-gigabit transmission interface 38 described above.
- one of the multi-gigabit transmission interfaces 38a and 38b serves as the host side and the other power SIO side for communication.
- the high-speed transmission data which is the transmission data in the high-speed transmission mode in the board 39a, is transmitted by the multi-gigabit transmission interface 38a, received by the multi-gigabit transmission interface 38b via the multi-gigabit transmission path 12, and is transmitted to the board 39b at high speed. It is output as high-speed received data that is received data in transmission mode.
- high-speed transmission data that is transmission data in the high-speed transmission mode in the board 39b is transmitted by the multi-gigabit transmission interface 38b, received by the multi-gigabit transmission interface 38a through the multi-gigabit transmission path 12, and sent to the board 39a.
- High-speed data that is received in high-speed transmission mode Output as received data.
- low-speed transmission data that is transmission data in the low-speed transmission mode in the board 39a is transmitted by the multi-gigabit transmission interface 38a, received by the multi-gigabit transmission interface 38b via the multi-gigabit transmission path 12, and the board 39b. Is output as low-speed received data that is received data in low-speed transmission mode.
- low-speed transmission data which is transmission data in the low-speed transmission mode, is transmitted to the board 39b via the multi-gigabit transmission interface 38b and received via the multi-gigabit transmission path 12 at the multi-gigabit transmission interface 38a. Is output to the board 39a as low-speed reception data that is reception data in the low-speed transmission mode.
- FIG. 3 is a block diagram showing an example of the configuration of the multi-gigabit transmission interface according to the present invention.
- the same reference numerals as those in FIG. 12 denote the same or corresponding parts as those in FIG. 12, and the description thereof is omitted here.
- the multi-gigabit transmission interface 38 includes a transmission parameter control unit 43 instead of the transmission parameter control unit 143, and a reception parameter control unit 53 instead of the reception parameter control unit 153.
- a test pattern generation unit 44, a modulation unit 45, a SW (switch) 46, a test pattern generation unit 54, a demodulation unit 55, and a BER (Bit Error Rate) measurement unit 56 are provided.
- FIG. 4 is a flowchart showing an example of the operation of the multi-gigabit transmission interface according to the present invention.
- This flow shows the operation of the multi-gigabit transmission interface 38a and the operation for performing communication in the high-speed transmission mode in the multi-gigabit transmission interface 38a and the multi-gigabit transmission interface 38b.
- this flow is started by any one of power-on, reset, and activity insertion of the board 39a provided with the multi-gigabit transmission interface 38a.
- each part of the multi-gigabit transmission interface 38a performs initial setting (Sl l).
- the multi-gigabit transmission interface 38a is the host side
- the multi-gigabit transmission interface 38b is the ten side.
- Transmission parameters and reception parameters are The previous value stored in the communication parameter storage unit 42 and the reception parameter storage unit 52.
- the transmission unit 41 detects the multi-gigabit transmission interface 38b on the reception side (S12).
- the multi-gigabit transmission interface 38a performs control monitoring by the control monitoring board 31 by communicating with the control monitoring board 31 via the multi-gigabit transmission interface 38b in the low-speed transmission mode (S13).
- the initial setting of the board equipped with the multi-gigabit transmission interface 38a may be performed from the control monitoring board 31 in the low-speed transmission mode.
- the board provided with the multi-gigabit transmission interface 38a is a board other than the CPU board 33, the control monitoring board via the multi-gigabit transmission path 12, the CPU board 33, and the control monitoring transmission path 11 Control monitoring is performed by communicating with 31.
- the multi-gigabit transmission line 12 uses a low-speed transmission mode.
- the board 39a provided with the multi-gigabit transmission interface 38a is the CPU board 33, control monitoring is performed by communicating with the control monitoring board 31 via the control monitoring transmission line 11 as in the conventional case.
- control monitoring board 31 and the crossbar switch board 32 or other boards are connected by the multi-gigabit transmission interface 38 and the multi-gigabit transmission path 12, and the control monitoring transmission path 11 and the control monitoring interface 13 are eliminated.
- a configuration may be adopted in which communication is performed in the low-speed transmission mode.
- the transmission parameter control unit 43 and the reception parameter control unit 53 set the transmission parameter and the reception parameter, and store them in the transmission parameter storage unit 42 and the reception parameter storage unit 52, respectively (S21). .
- the transmission unit 41 and the reception unit 51 perform communication in the high-speed transmission mode according to the transmission parameter storage unit 42 and the reception parameter storage unit 52, respectively (S22). This state is a normal high-speed transmission mode.
- the BER measurement unit 56 determines whether or not the transmission quality satisfies a predetermined threshold (S23).
- the transmission quality is performed using CRC (Cyclic Redundancy Check) or the like. If the transmission quality does not satisfy the predetermined threshold (S23, Y), the process returns to step S21, and the transmission parameters and reception parameters are set again.
- the transmission unit 41 and the reception unit 51 determine whether or not transmission in the high-speed transmission mode has continued for a predetermined time. Perform (S24).
- the transmission unit 41 and the reception unit 5 1 performs control monitoring by the control monitoring board 31 by communicating with the control monitoring board 31 via the multi-gigabit transmission interface 38b in the low-speed transmission mode (S25), and proceeds to processing S26.
- the 51 is a case in which the mounted board is in the lower order of other boards, and it is determined whether or not there is a change in the state of the board (S26). If there is a status change (S 26, Y), it notifies the higher-level board of the status change in the low-speed transmission mode (S 27), and proceeds to processing S 28.
- the upper board is 10 control board 34
- the lower board is SCSI control board 35, LAN control board 36, USB control connected to IO control board 34 via multi-gigabit transmission path 12 Board 37.
- the transmission unit 41 and the reception unit 51 determine whether or not to end communication (S 28). If communication is not terminated (S28, N), return to process S22 and continue communication in high-speed transmission mode. When the communication is to be terminated (S 28, Y), this flow is terminated.
- the multi-gigabit transmission interface 38a and the multi-gigabit transmission interface 38b perform automatic tuning of the transmission parameter and the reception parameter.
- FIG. 5 is a flowchart showing an example of the operation of automatic tuning according to the present invention.
- the operations of the multi-gigabit transmission interface 38a and the multi-gigabit transmission interface 38b are shown.
- the SW 46 outputs the test pattern for the BER measurement input from the test pattern generation unit 44 to the transmission unit 41, thereby generating a test pattern for the multi-gigabit transmission interface 38b.
- Transmit S 31.
- the BER measurement unit 56 measures the BER
- the SW 46 and the transmission unit 41 transmit the BERR measurement result to the multi-gigabit transmission interface 38a.
- the receiving unit 51 receives the BER measurement result (S32), and the transmission parameter control unit 43 performs transmission parameter optimization (S33).
- the reception parameter control unit 53 performs reception parameter optimization (S34).
- the reception parameter control unit 53 of the multi-gigabit transmission interface 38b performs reception parameter optimization (S34).
- the transmission side parameter of the multi-gigabit transmission interface 38b is optimized and the reception parameter of the multi-gigabit transmission interface 38a is optimized.
- the transmission parameter control unit 43 and the reception parameter control unit 53 transmit the optimized transmission parameter and reception parameter to the control monitoring board 31 in the low-speed transmission mode, and the control monitoring board 31 transmits the transmission parameter and the reception parameter. Is stored (S35), and this flow ends.
- FIG. 6 is a flowchart showing an example of the operation of transmission parameter optimization according to the present invention.
- the operation of transmission parameter optimization in the multi-gigabit transmission interface 38a is shown.
- the amount of change in transmission parameter i i is an integer from 1 to the number of transmission parameters
- the first change amount is s-ti steps
- the second and subsequent change absolute values are t-ti steps.
- the initial value of i is 1.
- the test pattern is transmitted from the multi-gigabit transmission interface 38a to the multi-gigabit transmission interface 38b in the high-speed transmission mode.
- the transmission parameter control unit 43 of the multi-gigabit transmission interface 38a changes the transmission parameter i by s ⁇ ti steps. (S51).
- the BER measurement unit 56 measures the BER, and the BER measurement result is transmitted to the multi-gigabit transmission interface 38a in the low-speed transmission mode by the modulation unit 45, the SW 46, and the transmission unit 41.
- the receiving unit 51 receives the BER measurement result in the low-speed transmission mode (S53), and the transmission parameter control unit 43 reduces the BER measurement result by comparing with the previous BER measurement result. Judgment is made as to whether or not (S54).
- the transmission parameter control unit 43 changes the transmission parameter i by t_ti steps with the same sign as the previous time (S55), and proceeds to processing S61.
- the transmission parameter control unit 43 changes the transmission parameter i by t_ti steps with the opposite sign from the previous time (S56), and proceeds to processing S61.
- the transmission parameter control unit 43 determines whether or not the change of the reverse sign has continued a predetermined number of times (S61). If not continuous (S61, N), the process returns to S53.
- the transmission parameter control unit 43 determines the median value between the value before the change of the transmission parameter i and the value after the change as the optimum value of the transmission parameter i (S62). Next, the transmission parameter control unit 43 determines whether or not the force ⁇ i in which optimization of all transmission parameters has been completed, i.e., matches the number of transmission parameters (S63). If the optimization has not been completed (S6 3, N), the transmission parameter control unit 43 increases i by 1 (S64), and returns to the processing S51. When the optimization is finished (S63, Y), this flow is finished.
- FIG. 7 is a flowchart showing an example of the operation of receiving parameter optimization according to the present invention. This section describes the operation of receiving parameter optimization in the multi-gigabit transmission interface 38b. Also, as the amount of change in the received parameter i (i is an integer from 1 to the number of received parameters), the first change is the s-ri step, and the absolute value of the second and subsequent changes is the t-ri step. . The initial value of i is 1. As described above, the test pattern is transmitted from the multi-gigabit transmission interface 38a to the multi-gigabit transmission interface 38b in the high-speed transmission mode.
- the reception parameter control unit 53 changes the reception parameter i by s-ri steps. (S71).
- the BER measurement unit 56 measures the BER based on the received test pattern (S73).
- the reception parameter control unit 53 determines whether or not the BER measurement result has decreased by comparing with the previous BER measurement result (S74).
- the reception parameter control unit 53 changes the reception parameter i by t_ri steps with the same sign as the previous time (S75), and proceeds to processing S81.
- the reception parameter control unit 53 changes the reception parameter i by t_ri steps with the opposite sign from the previous time (S76), and proceeds to processing S81.
- the reception parameter control unit 53 determines whether or not the change of the reverse sign is continued a predetermined number of times (S81). If not continuous (S81, N), return to processing S73. On the other hand, in the case of continuous (S81, Y), the reception parameter control unit 53 changes the value before the change of the reception parameter i. The median of the converted values is determined as the optimum value of the reception parameter i (S82). Next, the reception parameter control unit 53 determines whether or not the power at which the optimization of all reception parameters has been completed, i.e., i matches the number of reception parameters (S83). If the optimization has not been completed (S8 3, N), the reception parameter control unit 53 increases i by 1 (S84), and returns to the process S71. When the optimization is finished (S83, Y), this flow is finished.
- the multi-gigabit transmission interface 38 can perform automatic tuning.
- the transmission parameter and reception parameter of the multi-gigabit transmission interface 38 can be set from the outside. If the transmission parameter optimization or reception parameter optimization does not converge, the transmission and reception parameters stored in the control monitoring board 11 can be changed to multi-gigabit by communicating with the control monitoring board 11 in the low-speed transmission mode.
- the data may be transmitted to the transmission interface 38 and stored in the transmission parameter storage unit 42 or the reception parameter storage unit 52.
- the modulation unit 45 In the low-speed transmission mode, the modulation unit 45 generates a repetitive pattern of "01" at the transmission speed in the high-speed transmission mode, modulates the input low-speed data with the repetitive pattern, and outputs it to SW46.
- SW 46 outputs the input from modulation unit 45 to transmission unit 41.
- the transmitter 41 transmits the input from the SW 46 in a state adjusted according to the transmission parameter, and outputs it to the multi-gigabit transmission line 12.
- FIG. 8 is a waveform showing an example of the transmission operation in the low-speed transmission mode according to the present invention. From the top, the repetitive pattern waveform, low-speed transmission data waveform, and modulation unit output waveform are shown.
- the SW 46 In the high-speed transmission mode, the SW 46 outputs the high-speed transmission data input from the board 39 to the transmission unit 41.
- the transmitter 41 transmits the input from the SW 46 in a state adjusted according to the transmission parameter, and outputs it to the multi-gigabit transmission line 12.
- the reception unit 51 receives the waveform received from the multi-gigabit transmission path 12 in a state adjusted according to the reception parameter, and outputs the received waveform to the demodulation unit 55.
- Recovery The tuning unit 55 passes only the high-speed data of “01” repeated by BPF (bandpass filter), and determines whether or not the BPF passing signal level exceeds a predetermined value by the comparator. Is output to the board 39 and transmission parameter control unit 43 as low-speed reception data.
- FIG. 9 is a waveform showing an example of reception operation in the low-speed transmission mode according to the present invention. From the top, the output waveform of the receiver and the output waveform of the demodulator are shown.
- the receiving unit 51 receives the waveform received from the multi-gigabit transmission path 12 in a state adjusted according to the reception parameter, and outputs it to the board 39 as high-speed reception data.
- a force “0011” repeat pattern using a “01” repeat pattern, a “000 111” repeat pattern, a “00001111” repeat pattern, and the like may be used.
- the multi-gigabit transmission interface 38 and the multi-gigabit transmission path 12 can be used to transmit low-speed data that does not require optimization of transmission parameters and reception parameters, and control and monitoring can be performed. And can be used for parameter setting.
- the information transmission apparatus corresponds to the multi-gigabit transmission interface in the embodiment.
- the control monitoring unit corresponds to the control monitoring board in the embodiment.
- the transmission control unit corresponds to the transmission parameter control unit and the transmission parameter storage unit in the embodiment.
- the reception control unit corresponds to the reception parameter control unit and the reception parameter storage unit in the embodiment.
- the transmission unit corresponds to the modulation unit, the SW, the transmission unit, and the test pattern generation unit in the embodiment.
- the receiving unit corresponds to the receiving unit, the demodulating unit, the BER measuring unit, and the test pattern generating unit in the embodiment.
- the wiring space and circuit parts in the information processing apparatus can be greatly reduced, and the congestion between the transmission lines can be reduced. Can be reduced.
- By automatically tuning the transmission and reception parameters it is possible to achieve high-quality transmission even if the transmission line conditions change.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Communication Control (AREA)
- Information Transfer Systems (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05727081A EP1879110B1 (en) | 2005-03-22 | 2005-03-22 | Information transmitting apparatus and information transmitting method |
PCT/JP2005/005131 WO2006100754A1 (ja) | 2005-03-22 | 2005-03-22 | 情報伝送装置、情報伝送方法 |
JP2007509108A JP4680255B2 (ja) | 2005-03-22 | 2005-03-22 | 情報伝送装置、情報伝送方法 |
DE602005016976T DE602005016976D1 (de) | 2005-03-22 | 2005-03-22 | Informationssendevorrichtung und informationssendeverfahren |
CNB2005800465991A CN100541459C (zh) | 2005-03-22 | 2005-03-22 | 信息传输装置以及信息传输方法 |
US11/856,972 US7895366B2 (en) | 2005-03-22 | 2007-09-18 | Information transmission device and information transmission method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/005131 WO2006100754A1 (ja) | 2005-03-22 | 2005-03-22 | 情報伝送装置、情報伝送方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/856,972 Continuation US7895366B2 (en) | 2005-03-22 | 2007-09-18 | Information transmission device and information transmission method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006100754A1 true WO2006100754A1 (ja) | 2006-09-28 |
Family
ID=37023451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005131 WO2006100754A1 (ja) | 2005-03-22 | 2005-03-22 | 情報伝送装置、情報伝送方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7895366B2 (ja) |
EP (1) | EP1879110B1 (ja) |
JP (1) | JP4680255B2 (ja) |
CN (1) | CN100541459C (ja) |
DE (1) | DE602005016976D1 (ja) |
WO (1) | WO2006100754A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101377822B1 (ko) | 2011-06-15 | 2014-03-25 | 가부시끼가이샤 도시바 | 전자 기기 |
JP2016133972A (ja) * | 2015-01-19 | 2016-07-25 | 富士ゼロックス株式会社 | 通信システム及び画像形成装置 |
JP2019010853A (ja) * | 2017-07-03 | 2019-01-24 | 富士ゼロックス株式会社 | プリンタ制御装置 |
JP2020025153A (ja) * | 2018-08-06 | 2020-02-13 | 富士通株式会社 | パラメータ設定送受信システムおよびパラメータ設定方法 |
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EP2693649A4 (en) * | 2011-03-31 | 2014-08-20 | Fujitsu Ltd | APPARATUS AND SYSTEM FOR INFORMATION PROCESSING AND COMMUNICATION CONTROL METHOD |
JPWO2012140783A1 (ja) * | 2011-04-15 | 2014-07-28 | 富士通株式会社 | 半導体集積回路の対向ポートの自律初期化方法および半導体集積回路 |
CN103236739B (zh) * | 2013-04-11 | 2016-02-17 | 国家电网公司 | 测控装置的遥测量监测装置和监测方法 |
CN104915303B (zh) * | 2015-06-23 | 2017-11-21 | 北京工业大学 | 基于PXIe总线的高速数字I/O系统 |
US20170176534A1 (en) * | 2015-12-18 | 2017-06-22 | Intel Corporation | Self-characterizing high-speed communication interfaces |
CN108964836B (zh) * | 2017-05-27 | 2021-07-20 | 龙芯中科(北京)信息技术有限公司 | 数据的解码方法和装置 |
CN109586964B (zh) * | 2018-11-30 | 2022-02-08 | 联芸科技(杭州)有限公司 | 双向通信的本地端口及端口训练方法 |
US20210303427A1 (en) * | 2020-03-26 | 2021-09-30 | Rohde & Schwarz Gmbh & Co. Kg | System for testing a blockchain enabled device-under-test |
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- 2005-03-22 JP JP2007509108A patent/JP4680255B2/ja not_active Expired - Fee Related
- 2005-03-22 DE DE602005016976T patent/DE602005016976D1/de active Active
- 2005-03-22 CN CNB2005800465991A patent/CN100541459C/zh not_active Expired - Fee Related
- 2005-03-22 EP EP05727081A patent/EP1879110B1/en not_active Expired - Fee Related
- 2005-03-22 WO PCT/JP2005/005131 patent/WO2006100754A1/ja not_active Application Discontinuation
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2007
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KR101377822B1 (ko) | 2011-06-15 | 2014-03-25 | 가부시끼가이샤 도시바 | 전자 기기 |
JP2016133972A (ja) * | 2015-01-19 | 2016-07-25 | 富士ゼロックス株式会社 | 通信システム及び画像形成装置 |
JP2019010853A (ja) * | 2017-07-03 | 2019-01-24 | 富士ゼロックス株式会社 | プリンタ制御装置 |
JP2020025153A (ja) * | 2018-08-06 | 2020-02-13 | 富士通株式会社 | パラメータ設定送受信システムおよびパラメータ設定方法 |
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Also Published As
Publication number | Publication date |
---|---|
CN101103340A (zh) | 2008-01-09 |
US20080022022A1 (en) | 2008-01-24 |
EP1879110A1 (en) | 2008-01-16 |
JPWO2006100754A1 (ja) | 2008-08-28 |
EP1879110A4 (en) | 2008-07-02 |
US7895366B2 (en) | 2011-02-22 |
EP1879110B1 (en) | 2009-09-30 |
CN100541459C (zh) | 2009-09-16 |
JP4680255B2 (ja) | 2011-05-11 |
DE602005016976D1 (de) | 2009-11-12 |
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