WO2016095111A1 - 一种光交换信号处理方法和装置 - Google Patents

一种光交换信号处理方法和装置 Download PDF

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Publication number
WO2016095111A1
WO2016095111A1 PCT/CN2014/093978 CN2014093978W WO2016095111A1 WO 2016095111 A1 WO2016095111 A1 WO 2016095111A1 CN 2014093978 W CN2014093978 W CN 2014093978W WO 2016095111 A1 WO2016095111 A1 WO 2016095111A1
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Prior art keywords
packet
amplification factor
output port
data packet
padding
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PCT/CN2014/093978
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English (en)
French (fr)
Inventor
王岩
马会肖
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/093978 priority Critical patent/WO2016095111A1/zh
Priority to CN201480082535.6A priority patent/CN106797272B/zh
Publication of WO2016095111A1 publication Critical patent/WO2016095111A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an optical switching signal processing method and apparatus.
  • Optical switching technology refers to a network switching transmission technology that directly exchanges optical signals at the input end to any optical output without any optical/electrical conversion to perform network data and signal transmission.
  • Optical switches are attracting more and more attention due to their low energy consumption and large capacity.
  • the optical switching technology usually exchanges data packets consisting of one or more IP (Internet Protocol)/MAC (Media Access Control) packets. Granularity, in order to effectively and flexibly carry future IP packet services and improve bandwidth utilization.
  • IP Internet Protocol
  • MAC Media Access Control
  • Granularity in order to effectively and flexibly carry future IP packet services and improve bandwidth utilization.
  • the amplitude of the received signal varies for the receiver of the optical switching system.
  • the response time required is several times or even ten times longer than the data packet duration.
  • the shortest data packet duration is 50 ns, but it takes extra A response time of several hundred nanoseconds is received to receive the data packet, causing a serious waste of the link, resulting in a performance degradation of the optical switching system.
  • Embodiments of the present invention provide an optical switching signal processing method and apparatus, which are used to solve the problem that the response time is too long when the receiver receives the data packet, resulting in serious waste of the link and optical switching. The problem of system performance degradation.
  • an optical switching signal processing method including:
  • the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port and a packet length of the first data packet;
  • a padding packet is sent through the output port, and the padding packet is signal light that does not contain valid information.
  • the determining, according to the packet length monitoring, that the output port is idle includes:
  • Determining a counter when the first data packet is transmitted through the output port determining that the first data packet transmission ends when the counter counts the acquired transmitted data length equal to the packet length, the output The port is idle.
  • the sending, by using the output port, the padding packet includes:
  • the method after the sending the first data packet by using the output port, the method also includes:
  • the sending the padding packet by using the output port includes:
  • the acquiring the first amplification factor of the padding packet includes:
  • the link parameter table is a correspondence between recording an amplification factor of each output port and each padding packet Mapping table.
  • the acquiring the second amplification factor of the padding packet includes:
  • the link parameter table is a correspondence relationship between each output port and an amplification factor of each padding packet. Mapping table.
  • an optical switching apparatus including:
  • a receiving unit configured to receive a first control packet, where the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port and a packet length of the first data packet;
  • a switching unit configured to receive the first data packet corresponding to the first control packet, and send the first data packet by using the output port;
  • a padding unit configured to send, by using the output port, a padding packet after the output port is idle according to the packet length monitoring, where the padding packet is signal light that does not contain valid information.
  • the filling unit is used to:
  • Determining a counter when the first data packet is transmitted through the output port determining that the first data packet transmission ends when the counter counts the acquired transmitted data length equal to the packet length, the output The port is idle.
  • the filling unit is configured to:
  • the receiving unit is further configured to: after receiving the second control packet indicating that the same output port is used, determining a time at which the second data packet corresponding to the second control packet is received;
  • the filling unit is also used to:
  • the subsequent padding packet is
  • the filling unit is configured to:
  • the link parameter table is recording each output end A mapping table of the correspondence between the port and the amplification factor of each padding packet.
  • the filling unit is configured to:
  • the link parameter table is a correspondence relationship between each output port and an amplification factor of each padding packet. Mapping table.
  • an optical switching signal processing apparatus comprising: a bus, and a processor, a memory, a switch, and an interface connected to the bus; the memory is configured to store an instruction; the processor executes the instruction Used for:
  • the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port and a packet length of the first data packet;
  • a padding packet is sent through the output port, and the padding packet is signal light that does not contain valid information.
  • the executing the instruction by the processor is specifically used to:
  • Determining a counter when the first data packet is transmitted through the output port determining that the first data packet transmission ends when the counter counts the acquired transmitted data length equal to the packet length, the output The port is idle.
  • the executing the instruction by the processor is specifically used to:
  • the processor executes the instructions and is further used to:
  • the processor executing the instruction to send a padding packet by using the output port includes:
  • the subsequent padding packet is
  • the executing the instruction by the processor is specifically used to:
  • the link parameter table is a correspondence between recording an amplification factor of each output port and each padding packet Mapping table.
  • the link parameter table is recording each output end A mapping table of the correspondence between the port and the amplification factor of each padding packet.
  • the embodiment of the present invention provides an optical switching signal processing method and apparatus, by receiving a first control packet, acquiring an output port and a packet length of a first data packet indicated by the routing information, and then transmitting the first by using the output port. Data packet, and finally, after the output port is idle according to the packet length monitoring, the padding packet is sent through the output port.
  • the padding packet can be sent between the exchanged data packets in time, so that the receiver can receive the continuous signal, which solves the problem that the receiver response time is too long and the extra light is filled in the prior art.
  • the signal causes a serious waste of the link and a problem of degraded performance of the optical switching system. Therefore, the embodiment of the present invention ensures continuity of the transmission signal, shortens the response time of the receiver, and improves the performance of the optical switching system as compared with the prior art.
  • FIG. 1 is a schematic structural diagram of a switching network system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a switching network system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart 1 of a method for processing an optical switching signal according to an embodiment of the present disclosure
  • FIG. 4 is a second schematic flowchart of a method for processing an optical switching signal according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of two signals light output by an optical switching device according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a signal light outputted by an optical switching device after multiplexing two signals by an optical switch device according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of an optical switching device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another optical switching device according to an embodiment of the present invention.
  • the optical switching signal processing method provided by the embodiment of the present invention can be applied to a switching network system that uses optical switching technology for information exchange.
  • the optical switching technology used may be Optical Burst Switching (OBS) with data packet as the switching granularity.
  • the data packet consists of one or more IP packets/MAC packets and can form a basic switching unit (ie, a burst) in the optical burst switching network with a corresponding Control Packet (BCP).
  • BCP Control Packet
  • the data packet and the control packet are separated on the physical channel, and each control packet corresponds to one data packet, and since the two are separated from each other, the control packet may be transmitted before the data packet for carrying the control corresponding data packet transmission. Routing information about related parameters.
  • the structure of the system is as shown in FIG. 1, and includes: an optical switching device 001, a receiver 002, and one or more source devices 003.
  • the optical switching device 001 is respectively in communication connection with the source device 003 and the receiver 002, and is configured to receive an optical signal from the source device 003, and send the signal to the receiver 002 after processing; the receiver 002 is configured to receive the optical switch.
  • the continuous signal processed by the device 001; each source device 003 is a network node for providing a data packet to be exchanged, and the specific type of the network node is not limited herein.
  • FIG. 2 is a schematic diagram of a composition of a switching network system according to an embodiment of the present invention.
  • the optical switching device 001 includes: a control packet receiving module 0011, a control signal generating module 0012, and a padding packet generating module 0013.
  • the control packet receiving module 0011 is configured to receive each control packet and obtain routing information carried therein.
  • the control signal generating module 0012 is configured to generate a control signal according to the indication of the related information in the control packet, and perform the optical path in the data packet switching module 0014.
  • padding packet generation module 0013 for indicating according to relevant information in the control packet Generating and transmitting a padding packet by controlling the internal light gate
  • the data packet switching module 0014 includes a plurality of switching devices for receiving the data packet, and adjusting the state of the switching device under the control of the control signal generating module 0012 to adjust the internal optical path, so that The data packet is sent to the designated output port for transmission
  • the multiplexing module 0015 is configured to multiplex the padding packet sent by the padding packet generating module 0013 and the data packet sent by the data packet switching module 0014 into one channel, and the receiver 002 is used.
  • the output port is transmitted.
  • the embodiment of the present invention provides an optical switching signal processing method, which can be applied to the optical switching device in the switching network system shown in FIG. 1 or FIG. 2, as shown in FIG.
  • the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port of the first data packet and a packet length.
  • S102 Receive a first data packet corresponding to the first control packet, and send the first data packet by using an output port.
  • the padding packet is a signal light that does not contain valid information.
  • the foregoing determining, according to the packet length monitoring, that the output port is idle may include:
  • the counter When the first data packet is transmitted through the output port, the counter is started. When the length of the transmitted data acquired by the counter count is equal to the packet length, it is determined that the first data packet transmission ends and the output port is idle.
  • sending the padding packet by using the output port may include:
  • the signal power of the padding packet is adjusted according to the first amplification factor, and the padding packet adjusted by the first amplification factor is transmitted through the output port.
  • the method may further include:
  • the connection After receiving the second control packet indicating the use of the same output port, the connection is determined Receiving a time of the second data packet corresponding to the second control packet;
  • the foregoing sending the padding packet through the output port may include:
  • the preset signal preparation time before receiving the second data packet is adjusted according to the second amplification factor, and the padding packet adjusted by using the second amplification factor is transmitted through the output port.
  • the obtaining the first amplification factor of the padding packet may include:
  • the link parameter table is a mapping table for recording a correspondence between each output port and an amplification factor of each padding packet.
  • the obtaining the second amplification factor of the padding packet may include:
  • the link parameter table is a mapping table for recording the correspondence between each output port and the amplification factor of each padding packet.
  • An embodiment of the present invention provides an optical switching signal processing method. After receiving a first control packet, an output port and a packet length of a first data packet indicated by the routing information are obtained, and then the first data packet is sent by using the output port, and finally After the output port is idle according to the packet length monitoring, the padding packet is sent through the output port. In this way, according to the state of the output port, the padding packet can be sent between the exchanged data packets in a timely manner, which solves the problem that the response time is too long when the receiver receives the data packet, resulting in link waste and optical switching.
  • the problem of system performance reduction ensures the continuity of the transmission signal, shortens the response time of the receiver, and improves the performance of the optical switching system.
  • FIG. 4 Another embodiment provided by the embodiments of the present invention is based on the switching network system as shown in FIG. 1 or FIG.
  • the optical switching signal processing method is described in detail. As shown in FIG. 4, the method includes:
  • control packet receiving module in the optical switching device receives the first control packet, and obtains routing information of the corresponding first data packet carried in the first control packet.
  • the first control packet and the first data packet may be components of the same basic switching unit (ie, burst) in the optical burst switching network, the two corresponding to each other, and the first control packet and the first data packet are in physical The channels are separated from each other.
  • the first control packet may occupy one or several wavelengths, and the first data packet occupies all other wavelengths.
  • the routing information carried in the first control packet may include output port information of the first data packet, destination address information, and packet length, priority information, and the like of the first data packet, and the foregoing routing information includes only content. Exemplary, including but not limited to.
  • the optical switching device monitors the status identifier corresponding to the output port according to the output port of the first data packet indicated by the first control packet, and determines whether the output port is idle.
  • the output port is a port in the optical switching device, and the data packet signal sent by the data packet switching module and the control packet signal sent by the padding field generating module are output after being multiplexed by the multiplexing module, and the signal is output by using the output port. Send, the multiplexed signal can be sent to the receiver corresponding to the destination address.
  • the status identifier is an optical switching device responsible for maintenance, and is used to identify an identifier variable of each output port state on the optical switching device, including "busy” or “free” identification status.
  • the status identifier corresponding to any port is "busy"
  • it indicates that data packet transmission is ongoing on the transmission link between the output port and the receiving port on the corresponding receiver; or, when the corresponding status identifier is "free” , indicating that there is no ongoing data packet transmission on the transmission link between the output port and the receiving port on the corresponding receiver (there may be an ongoing padding packet transmission), that is, the output port is currently in the transmission data packet and the data packet. Interval between.
  • the optical switching device determines whether the indicated output port is currently idle according to the status identifier corresponding to the output port indicated in the routing information. After determining the idle state, performing the step S203, and receiving the first data packet. The first data packet is transparently transmitted through the output port.
  • the step S203 is performed, and the first data is received.
  • the packet is switched to an output port in the data packet switching module, and the first data packet is transparently transmitted through the output port.
  • the operation of the optical switching device to establish the optical path of the data packet switching module may include: querying the record or calculation according to the output port indicated by the routing information, and generating a corresponding control signal by the control signal generating module in the calling device, and then the data packet switching module. According to the control signal, a plurality of switching device states in the module responsible for link switching are adjusted to implement the establishment of the switching optical path.
  • step S202A before the first data packet is received, the padding packet is sent through the output port, so that the receiver adjusts in advance according to the padding packet.
  • S202A Send the padding packet through the output port before receiving the first data packet.
  • the optical switching device determines that the output port is idle, and there is currently no padding packet in the transmission link between the output port and the receiving port on the corresponding receiver, and When the first data packet to be transmitted and exchanged is not received, the amplification factor when the padding packet is sent through the output port is acquired, and after the padding packet is adjusted according to the amplification factor, the padding packet is sent through the output port.
  • the padding packet is used to fill the data packet interval and does not contain valid information, and can be generated by calling the padding packet generation module in the optical switching device.
  • the amplification factor when the padding packet is sent is an adjustment parameter for amplifying and adjusting the padding field generated by the padding packet generating module before the padding packet is sent, so that the padded packet outputted after the adjustment satisfies a certain power requirement, and the receiver is advanced according to the padding packet. Make adjustments.
  • the obtaining the amplification factor when the padding packet is sent through the output port may be obtained by directly obtaining the amplification from the routing information.
  • the link parameter table may be queried according to the output port to obtain an amplification factor.
  • the link parameter table is a mapping table in which the correspondence between each output port and the amplification factor of each padding packet is recorded in the optical switching device.
  • the corresponding relationship recorded in the link parameter table is set in advance by the system or the user according to the loss of the different transmission and switching paths. The specific correspondence is different according to the application scenario.
  • the amplification factor of the padding packet can be determined according to the loss of the transmission link corresponding to different output ports;
  • the above-mentioned amplification factor may also select a preset fixed amplification factor, and the preset fixed amplification factor may be a default setting of the system, or may be given to the external input of the user, which is not limited herein. .
  • the optical switching device can control and adjust the generated padding field by controlling the light gate in the padding packet generating module, where the optical gate is an optical amplifier with an adjustable amplification factor, which in this example can be SOA (Semiconductor) Optical Amplifier, and the selection of the light gate in a specific application scenario is not limited herein.
  • Controlling the opening or closing of the light door according to the amplification factor of the filling group for example, when the amplification factor is less than or equal to the preset threshold, the light gate is closed, and when the amplification threshold is greater than the preset threshold, the filling group is adjusted by the set amplification factor. Adjustment and transmission of padding packets.
  • the optical switching device acquires an amplification factor when the padding packet is sent, controls the light gate to be opened according to the amplification factor, and performs amplification adjustment, and then sends the adjusted padding packet through the output port to fill the padding packet at the data packet interval.
  • the optical signal is consistent with the intensity of the light signal of the first data packet followed by or reaches a set light intensity.
  • the optical switching device transparently transmits the first data packet to the receiver through the output port when receiving the first data packet.
  • the optical switching device controls the padding packet generation module when the data packet switching module receives the first data packet, that is, needs to use the transmission link between the output port and the receiving port on the corresponding receiver to transmit the first data packet.
  • the shutter is closed (can be implemented by adjusting the amplification factor to a coefficient value less than or equal to the preset threshold), and the padding packet currently being transmitted through the output port is stopped to ensure normal transmission of the first data packet.
  • the optical switching device may further control the padding packet generation module to stop sending the padding packet on the output port according to the time when the control packet receiving module receives the first control packet and after the preset time difference is separated.
  • the preset time difference is the difference between the sending time of each control packet and the corresponding data packet in the optical burst switching network, and may be a default setting of the system, or may be input to the external input of the user, which is not limited herein.
  • the optical switching device needs to set the status identifier corresponding to the output port on the optical switching device to “busy” to indicate that the output port is transmitting the data packet. To avoid signal errors caused by sending padding packets at this time.
  • the optical switching device monitors the output port to determine that the output port is idle after the end of the first data packet transmission.
  • the optical switching device acquires the packet length of the first data packet and, when starting to transmit the first data packet, starts a counter, which can be used to count the amount of data that has been transmitted.
  • the counter statistics determine the length of the transmitted data and the first data packet
  • the packet length is the same, it indicates that the first data packet transmission ends, that is, the output port returns to the idle state.
  • the packet length of the first data packet may be included in the routing information, or may be a system default setting or a preset input data packet length value, and the manner of acquiring the packet length of the first data packet is There may be some differences in the application scenarios, which are not limited here.
  • the optical switching device needs to set the status identifier corresponding to the output port on the optical switching device to “free” when determining that the first data packet transmission ends and the output port is restored to be idle, to indicate that the output port corresponds to the output port. There is no data packet being transmitted on the transmission link between the receiving ports on the receiver, so that subsequent operations send the padding packet according to the status identifier.
  • the first amplification factor corresponding to the sending of the padding packet is obtained, and after the padding packet is adjusted according to the first amplification factor, , the padding packet is sent through the output port.
  • the optical switching device may determine, according to the status identifier corresponding to the output port, whether the current status of the transmission link between the output port and the receiving port on the corresponding receiver is idle;
  • the optical switching device may obtain the amplification factor corresponding to the first data packet as the first amplification factor according to the signal power of the transmitted first data packet or the indication of the routing information in the first control packet; or, according to The output port queries the link parameter table to obtain the amplification factor corresponding to the output port, as the first amplification factor; or, according to the requirements of the actual application scenario, obtains a preset fixed amplification factor as the first amplification factor, and the preset fixed amplification factor It can be set as the default of the system, or it can be given to the external input of the user. It is not limited here.
  • the operation of adjusting the padding packet according to the first amplification factor and the operation of the post-adjustment padding packet are the same as the corresponding operations in the step S202A, and details are not described herein again.
  • the optical switching device needs to send the corresponding output port using the same output port as the first data packet.
  • the second data packet because the data packet received by the receiver (such as the first data packet and the second data packet described above) may come from different source devices, that is, may have undergone different switching optical paths, and there are different losses, which are required.
  • the gain and threshold are adjusted based on the strength of each data packet, at the expense of valid data in the data packet.
  • the optical switching device needs to acquire the second amplification factor corresponding to when the padding packet is sent, and further adjust the padding packet, so that the receiver can make an adjustment in advance according to the adjusted padding packet before receiving the second data packet.
  • the optical switching device after the control packet receiving module receives the second control packet, the optical switching device according to the related information indicated by the routing information in the second control packet, or according to the preset time of the control packet arrival time and the corresponding data packet arrival time a time difference, determining a time at which the second data packet is received, so as to control the padding packet generation module to adjust the sending by using a second amplification factor corresponding to when the padding packet is sent, in a preset preparation time before the time of receiving the second data packet The signal power of the padding packet.
  • the preset preparation time is a time for sending a padding packet before the receiver sends the second data packet to the receiver through the output port, so that the receiver adjusts the second data packet in advance, which may be a system default setting. It is also possible to input a given value externally for the user, which is not limited here.
  • the optical switching device adjusts according to the first amplification factor after the first data packet is sent.
  • the adjusted padding packet is sent, and after entering the preset preparation time, the adjusted padding packet is adjusted and transmitted according to the second amplification factor.
  • the optical switching device does not adjust the padding packet according to the first amplification factor, and directly adjusts according to the second amplification factor. And send the adjusted padding packet.
  • the amplification factor corresponding to the second data packet may be used as the second amplification factor corresponding to the foregoing when the padding packet is sent;
  • the light intensity of the fill packet optical signal transmitted after the adjustment is made coincident with the light signal of the second data packet transmitted later.
  • the corresponding amplification factor of the output port obtained by querying the link parameter table may be used as the second amplification factor; and according to the requirements of the actual application scenario, the preset fixed amplification factor may also be acquired as the second amplification factor, and the preset fixed
  • the amplification factor can be the default setting of the system, or it can be given to the external input of the user, which is not limited here.
  • the operation of adjusting the padding packet according to the second amplification factor and transmitting the adjusted padding packet is the same as the corresponding operation in the step S202A, and details are not described herein again.
  • the second control packet is used as an operation object, and the foregoing steps S201 to S205 are performed again, so that the received second control packet and the subsequently received second data packet can be processed correspondingly to ensure subsequent transmission on the output port.
  • the optical switching device performs the above steps S201 to S205 each time the received control packet and its corresponding data packet, for the same receiving port on the receiver. , that is, an interval of data packet signal light and an interval of filled packet signal light as shown in FIG. 5 can be output, and since the padding packet is sent by the optical switching device when monitoring determines that the output port is idle, according to the link.
  • the state accurately controls the timing and duration of the transmission, so that the two optical signals are staggered in time, without overlapping and without interference, and the two channels of light can be multiplexed by calling the multiplexing function of the multiplexing module in the optical switching device.
  • the signal light output as shown in FIG. 6 is simultaneously transmitted to the receiver in one optical fiber, so that the receiver receives the continuous signal light, so that the capacitance in the receiver is always in the charging state, shortening the response time of the receiver and not This can complicate system design.
  • An embodiment of the present invention provides an optical switching signal processing method. After receiving a first control packet, an output port and a packet length of a first data packet indicated by the routing information are obtained, and then the first data packet is sent by using the output port, and finally After the output port is idle according to the packet length monitoring, the padding packet is sent through the output port. In this way, the padding packet can be sent in time between the exchanged data packets according to the state of the output port. Therefore, the receiver can receive the continuous signal, which solves the problem that the response time of the receiver in the prior art is too long, and the extra light signal is additionally filled, causing serious waste of the link and performance degradation of the optical switching system. Therefore, the embodiment of the present invention ensures continuity of the transmission signal, shortens the response time of the receiver, and improves the performance of the optical switching system as compared with the prior art.
  • the embodiment of the present invention provides an optical switching device 01 for implementing the optical switching signal processing method provided by the embodiment of the present invention. As shown in FIG. 7, the optical switching device 01 includes:
  • the receiving unit 011 is configured to receive the first control packet.
  • the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port of the first data packet and a packet length.
  • the switching unit 012 is configured to receive a first data packet corresponding to the first control packet, and send the first data packet by using an output port;
  • the filling unit 013 is configured to send the padding packet through the output port after determining that the output port is idle according to the packet length monitoring.
  • the padding packet is a signal light that does not contain valid information.
  • the dotted line indicates that the units may have a connection relationship, or may not have a direct connection relationship.
  • the switching unit 012 may perform the first data.
  • the filling unit 013 is notified at the time of packet transmission, and may be uniformly regulated by the device without notification.
  • the filling unit 013 can be used to:
  • the counter When the first data packet is transmitted through the output port, the counter is started. When the length of the transmitted data acquired by the counter count is equal to the packet length, it is determined that the first data packet transmission ends and the output port is idle.
  • the filling unit 013 can also be used to:
  • the signal power of the padding packet is adjusted according to the first amplification factor, and the padding packet adjusted by the first amplification factor is transmitted through the output port.
  • the receiving unit 011 may be further configured to: after receiving the indication that the same output port is used After the second control packet, determining a time at which the second data packet corresponding to the second control packet is received;
  • the filling unit 013 can be specifically configured to:
  • the preset signal preparation time before receiving the second data packet is adjusted according to the second amplification factor, and the padding packet adjusted by using the second amplification factor is transmitted through the output port.
  • the filling unit 013 is further specifically configured to:
  • the link parameter table is a mapping table for recording the correspondence between each output port and the amplification factor of each padding packet.
  • the filling unit 013 is further specifically configured to:
  • the link parameter table is a mapping table for recording the correspondence between each output port and the amplification factor of each padding packet.
  • An embodiment of the present invention provides an optical switching apparatus, by receiving a first control packet, acquiring an output port and a packet length of a first data packet indicated by the routing information, and then transmitting the first data packet by using the output port, and finally, according to the grouping
  • the length monitoring determines that the output port is idle, and then sends a padding packet through the output port.
  • the padding packet can be timely transmitted between the exchanged data packets, which solves the problem that the response time is too long, the link is wasted, and the performance of the optical switching system is degraded, and the transmission signal is ensured. Continuously, the response time of the receiver is shortened, and the performance of the optical switching system is improved.
  • the embodiment of the present invention provides an optical switching device 02 for implementing the optical switching signal processing method provided by the embodiment of the present invention.
  • the optical switching device 02 includes:
  • bus 021 a bus 021, and a processor 022, a memory 023, a switch 024, and a 025 connected to the bus, wherein the interface 025 is used to communicate with an external device;
  • the memory 023 is configured to store an instruction
  • the processor 022 is configured to receive the first control packet
  • the first control packet is configured to carry routing information corresponding to the first data packet, where the routing information includes an output port and a packet of the first data packet. length.
  • the processor 022 executes the instruction and is further configured to receive, by the switch 024, a first data packet corresponding to the first control packet, and send the first data packet through the output port.
  • the processor 022 executes the instruction, and is further configured to: after determining that the output port is idle according to the packet length monitoring, send the padding packet through the output port, and fill the packet into a signal light that does not contain valid information.
  • the processor 022 executes the instruction, which may be specifically used to:
  • the counter When the first data packet is transmitted through the output port, the counter is started. When the length of the transmitted data acquired by the counter count is equal to the packet length, it is determined that the first data packet transmission ends and the output port is idle.
  • the processor 022 executes the instruction, which may be specifically used to:
  • the signal power of the padding packet is adjusted according to the first amplification factor, and the padding packet adjusted by the first amplification factor is transmitted through the output port.
  • the processor 022 executes the instruction to send the first data packet through the output port, the processor 022 executes the instruction, which may be specifically used to:
  • the processor executing the instruction to send the padding packet through the output port includes:
  • the preset signal preparation time before receiving the second data packet is adjusted according to the second amplification factor, and the padding packet adjusted by using the second amplification factor is transmitted through the output port.
  • the processor 022 executes the instruction, which may be specifically used to:
  • the link parameter table is a mapping table for recording the correspondence between each output port and the amplification factor of each padding packet.
  • the processor 022 executes the instruction, which may be specifically used to:
  • the link parameter table is a mapping table for recording the correspondence between each output port and the amplification factor of each padding packet.
  • An embodiment of the present invention provides an optical switching apparatus, by receiving a first control packet, acquiring an output port and a packet length of a first data packet indicated by the routing information, and then transmitting the first data packet by using the output port, and finally, according to the grouping
  • the length monitoring determines that the output port is idle, and then sends a padding packet through the output port.
  • the padding packet can be timely transmitted between the exchanged data packets, which solves the problem that the response time is too long, the link is wasted, and the performance of the optical switching system is degraded, and the transmission signal is ensured. Continuously, the response time of the receiver is shortened, and the performance of the optical switching system is improved.
  • the disclosed system, Equipment and methods can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • each functional unit may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above units may be implemented in the form of hardware or in the form of hardware plus software functional units.
  • All or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to the program instructions.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes the steps of the foregoing method embodiments;
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a ROM (Read Only Memory), a RAM (Random Access Memory), a magnetic disk, or an optical disk, and the like, which can store program codes.

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Abstract

本发明的实施例提供一种光交换信号处理方法和装置,涉及通信技术领域,能够解决接收机接收数据分组时响应时间过长导致链路严重浪费、光交换系统性能降低的问题。其方法为:通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。本发明实施例用于实现在进行光信号交换时的信号处理。

Description

一种光交换信号处理方法和装置 技术领域
本发明涉及通信技术领域,尤其涉及一种光交换信号处理方法和装置。
背景技术
光交换技术是指不经过任何光/电转换,将输入端光信号直接交换到任意的光输出端来进行网络数据、信号传输的网络交换传输技术。随着大带宽业务需求的日益增加,交换网络对交换容量的需求也越来越大,光交换机以其低能耗、大容量等特点引起越来越多的关注。
目前,光交换技术在进行信号交换时,通常以由一个或多个IP(Internet Protocol,网络之间互连的协议)包/MAC(Media Access Control,介质访问控制)包组成的数据分组作为交换粒度,以便有效、灵活地承载未来占主流地位的IP分组业务,提高带宽利用率。然而,由于数据分组之间存在无信号光的间隔,即光功率存在大幅度变化,对于光交换系统的接收机来说,所接收到的信号幅度是变化的。现有技术在处理此类信号之间有间隔或前后信号幅度相差很大的突发信号时,通常需要在每个数据分组前面加入一段无效数据用于调整接收机增益和判决电平,并采用响应时间快且动态范围大的突发模式接收机,以实现对每个数据分组的成功接收。
然而,即使在使用突发接收机接收数据分组时,所需的响应时间也长达数据分组时长的几倍甚至十几倍,如在10Gbps速率下,最短数据分组时长为50ns,却需要花费额外几百纳秒的响应时间来接收该数据分组,造成了链路的严重浪费,导致光交换系统性能降低。
发明内容
本发明的实施例提供一种光交换信号处理方法和装置,用以解决接收机接收数据分组时响应时间过长导致链路严重浪费、光交换 系统性能降低的问题。
为达到上述目的,本发明的实施例采用如下技术方案:
第一方面,提供一种光交换信号处理方法,包括:
接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
结合第一方面,在第一种可能的实现方式中,所述根据所述分组长度监控确定所述输出端口空闲包括:
在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时,确定所述第一数据分组传输结束,所述输出端口空闲。
结合第一方面或第一方面的第一种可能的实现方式,在第二种可能的实现方式中,所述通过所述输出端口发送填充分组包括:
获取所述填充分组的第一放大系数;
根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分组。
结合第一方面至第一方面的第二种可能的实现方式中的任一种,在第三种可能的实现方式中,在所述通过所述输出端口发送所述第一数据分组之后,所述方法还包括:
在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
所述通过所述输出端口发送填充分组包括:
获取所述填充分组的第二放大系数;
在接收所述第二数据分组的时刻前的预设准备时间内,根据所 述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
结合第一方面的第二种可能的实现方式,在第四种可能的实现方式中,所述获取所述填充分组的第一放大系数包括:
获取预设的固定放大系数作为所述第一放大系数;或,
根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
结合第一方面的第三种可能的实现方式,在第五种可能的实现方式中,所述获取所述填充分组的第二放大系数包括:
获取预设的固定放大系数作为所述第二放大系数;或,
获取所述第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为所述第二放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
第二方面,提供一种光交换装置,包括:
接收单元,用于接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
交换单元,用于接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
填充单元,用于在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
结合第二方面,在第一种可能的实现方式中,所述填充单元用 于:
在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时,确定所述第一数据分组传输结束,所述输出端口空闲。
结合第二方面或第二方面的第一种可能的实现方式,在第二种可能的实现方式中,所述填充单元用于:
获取所述填充分组的第一放大系数;
根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分组。
结合第二方面至第二方面的第二种可能的实现方式中的任一种,在第三种可能的实现方式中,在所述交换单元通过所述输出端口发送所述第一数据分组之后,
所述接收单元还用于:在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
所述填充单元还用于:
获取所述填充分组的第二放大系数;
在接收所述第二数据分组的时刻前的预设准备时间内,根据所述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
结合第二方面的第二种可能的实现方式,在第四种可能的实现方式中,所述填充单元用于:
获取预设的固定放大系数作为所述第一放大系数;或,
根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端 口与各填充分组的放大系数之间对应关系的映射表。
结合第二方面的第三种可能的实现方式,在第五种可能的实现方式中,所述填充单元用于:
获取预设的固定放大系数作为所述第二放大系数;或,
获取所述第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为所述第二放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
第三方面,提供一种光交换信号处理装置,包括:总线、以及连接到所述总线的处理器、存储器、交换器和接口;所述存储器用于存储指令;所述处理器执行所述指令用于:
接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
通过所述交换器接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
结合第三方面,在第一种可能的实现方式中,所述处理器执行所述指令具体用于:
在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时,确定所述第一数据分组传输结束,所述输出端口空闲。
结合第三方面或第三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述处理器执行所述指令具体用于:
获取所述填充分组的第一放大系数;
根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分 组。
结合第三方面至第三方面的第二种可能的实现方式中的任一种,在第三种可能的实现方式中,在所述处理器执行所述指令通过所述输出端口发送所述第一数据分组之后,所述处理器执行所述指令还用于:
在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
所述处理器执行所述指令通过所述输出端口发送填充分组包括:
获取所述填充分组的第二放大系数;
在接收所述第二数据分组的时刻前的预设准备时间内,根据所述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
结合第三方面的第二种可能的实现方式,在第四种可能的实现方式中,所述处理器执行所述指令具体用于:
获取预设的固定放大系数作为所述第一放大系数;或,
根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
结合第三方面的第三种可能的实现方式,在第五种可能的实现方式中,所述处理器执行所述指令具体用于:
获取预设的固定放大系数作为所述第二放大系数;或,
获取所述第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为所述第二放大系数;或,
根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端 口与各填充分组的放大系数之间对应关系的映射表。
可见,本发明的实施例提供一种光交换信号处理方法和装置,通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。这样一来,能够根据输出端口状态,在交换的数据分组之间适时发送填充分组,以便接收机能够接收到连续信号,解决了现有技术中接收机响应时间过长,额外填充较长的光信号造成链路严重浪费,光交换系统性能降低的问题。因此,本发明的实施例相对于现有技术,保证了传输信号的连续,缩短了接收机的响应时间,提高了光交换系统的性能。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的一种交换网络系统的结构示意图;
图2为本发明实施例提供的一种交换网络系统的组成示意图;
图3为本发明实施例提供的一种光交换信号处理方法的流程示意图一;
图4为本发明实施例提供的一种光交换信号处理方法的流程示意图二;
图5为本发明实施例中光交换装置输出的两路信号光示意图;
图6为本发明实施例中光交换装置将两路信号光复用后输出的一路信号光示意图;
图7为本发明实施例提供的一种光交换装置的结构示意图;
图8为本发明实施例提供的另一种光交换装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
本发明实施例提供的光交换信号处理方法可以应用于一种采用光交换技术进行信息交换的交换网络系统。其中,采用的光交换技术可以为以数据分组为交换粒度的光突发交换(Optical Burst Switching,OBS)。该数据分组由一个或多个IP包/MAC包组成,能够与相应的控制分组(Burst Control Packet,BCP)构成光突发交换网中的基本交换单元(即突发)。同时,数据分组与控制分组在物理信道上是分离的,每个控制分组对应于一个数据分组,且由于两者的相互分离,控制分组可以先于数据分组传输,用于携带控制对应数据分组发送时相关参数的路由信息。
该系统的结构如图1所示,包括:光交换装置001、接收机002、一个或多个源端设备003。
其中,光交换装置001分别与源端设备003、接收机002存在通信连接,用于接收来自源端设备003的光信号,在进行处理后发送至接收机002;接收机002用于接收光交换装置001处理后的连续信号;各源端设备003为用于提供待交换数据分组的网络节点,且该网络节点的具体类型,此处不做限定。
如图2所示,为本发明实施例提供的一种交换网络系统的组成示意图,参见图2,光交换装置001包括:控制分组接收模块0011、控制信号产生模块0012,填充分组产生模块0013、数据分组交换模块0014以及复用模块0015。
其中,控制分组接收模块0011用于接收各控制分组并获取其中携带的路由信息;控制信号产生模块0012用于根据控制分组中相关信息的指示生成控制信号,对数据分组交换模块0014中的光路进行控制;填充分组产生模块0013用于根据控制分组中相关信息的指示 生成并通过控制内部的光门发送填充分组;数据分组交换模块0014中包含多个开关器件,用于接收数据分组,并在控制信号产生模块0012的控制下调整开关器件状态以调整内部光路,以便将数据分组送至指定的输出端口进行发送;复用模块0015用于将填充分组产生模块0013发出的填充分组与数据分组交换模块0014发出的数据分组复用为一路信号,使用与接收机002对应的输出端口进行传输。
本发明实施例提供一种光交换信号处理方法,该方法可以应用于图1或图2所示交换网络系统中光交换装置,如图3所示,包括:
S101、接收第一控制分组。
其中,该第一控制分组用于携带对应第一数据分组的路由信息,路由信息包括第一数据分组的输出端口及分组长度;
S102、接收第一控制分组对应的第一数据分组,并通过输出端口发送第一数据分组;
S103、在根据分组长度监控确定输出端口空闲后,通过输出端口发送填充分组。
其中,填充分组为不包含有效信息的信号光。
在一种实现方式下,上述根据分组长度监控确定输出端口空闲可以包括:
在通过输出端口发送第一数据分组开始时,启动计数器,当计数器计数获取的已传输数据长度等于分组长度时,确定第一数据分组传输结束,输出端口空闲。
在另一种实现方式下,上述通过输出端口发送填充分组可以包括:
获取填充分组的第一放大系数;
根据第一放大系数,调整填充分组的信号功率,并通过输出端口发送使用第一放大系数调整后的填充分组。
在另一种实现方式下,在上述通过输出端口发送第一数据分组之后,还可以包括:
在接收到指示使用相同的输出端口的第二控制分组后,确定接 收第二控制分组对应的第二数据分组的时刻;
上述通过输出端口发送填充分组可以包括:
获取填充分组的第二放大系数;
在接收第二数据分组的时刻前的预设准备时间内,根据第二放大系数,调整填充分组的信号功率,并通过输出端口发送使用第二放大系数调整后的填充分组。
在另一种实现方式下,上述获取填充分组的第一放大系数可以包括:
获取预设的固定放大系数作为第一放大系数;或,
根据已传输的第一数据分组的信号功率或第一控制分组中路由信息的指示,获取第一数据分组对应的放大系数,作为第一放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第一放大系数,其中,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
在另一种实现方式下,上述获取填充分组的第二放大系数可以包括:
获取预设的固定放大系数作为第二放大系数;或,
获取第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为第二放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第二放大系数,其中,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
本发明实施例提供一种光交换信号处理方法,通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。这样,能够根据输出端口状态,在交换的数据分组之间适时发送填充分组,解决了接收机接收数据分组时响应时间过长导致链路浪费、光交换 系统性能降低的问题,保证了传输信号的连续,缩短了接收机的响应时间,提高了光交换系统的性能。
为了使本领域技术人员能够更清楚地理解本发明实施例提供的技术方案,下面通过具体的实施例,基于如图1或图2所示的交换网络系统,对本发明实施例提供的另一种光交换信号处理方法进行详细说明,如图4所示,该方法包括:
S201、接收第一控制分组。
具体的,光交换装置中的控制分组接收模块接收第一控制分组,获取该第一控制分组中携带的对应第一数据分组的路由信息。
其中,第一控制分组与第一数据分组可以为光突发交换网中同一个基本交换单元(即突发)的组成部分,两者相互对应,且第一控制分组与第一数据分组在物理信道上相互分离。以波分复用(Wavelength Division Multiplexing,WDM)方式为例,在该基本交换单元中,第一控制分组可以占用其中的一个或几个波长,第一数据分组则占用其它所有波长。
同时,第一控制分组中携带的路由信息可以包括第一数据分组的输出端口信息、目的地址信息以及该第一数据分组的分组长度、优先级信息等,且上述列举的路由信息包含内容仅为示例性的,包括但不限于此。
S202、监控确定输出端口是否空闲。
具体的,光交换装置根据第一控制分组指示的第一数据分组的输出端口,监控输出端口对应的状态标识,确定该输出端口是否为空闲。
其中,输出端口为光交换装置中,数据分组交换模块发送的数据分组信号与填充字段产生模块发送的控制分组信号在经过复用模块进行复用后执行输出的端口,通过使用该输出端口进行信号发送,可以将复用后的信号发送至与目的地址对应的接收机。
且该状态标识为光交换装置负责维护,用于表征光交换装置上各输出端口状态的标识变量,包括“忙”或“闲”两种标识状态。 当任一端口对应的状态标识为“忙”时,表明该输出端口与对应接收机上接收端口之间的传输链路上有数据分组传输正在进行;或者,当对应的状态标识为“闲”时,表明该输出端口与对应接收机上接收端口之间的传输链路上不存在进行中的数据分组传输(可能存在进行中的填充分组传输),即该输出端口当前处于传输数据分组与数据分组之间的间隔。
示例性的,光交换装置根据路由信息中指示的输出端口所对应的状态标识,即可确定该指示的输出端口当前是否空闲,当确定空闲后,执行S203步骤操作,在接收到第一数据分组时通过该输出端口透明传输该第一数据分组。
值得一提的,若当前数据分组交换模块中不存在将接收到的第一数据分组交换至上述输出端口输出的光路,则在建立该交换光路后,执行S203步骤操作,在接收到第一数据分组时交换至数据分组交换模块中的输出端口,进而通过该输出端口透明传输该第一数据分组。
其中,光交换装置建立数据分组交换模块中交换光路的操作具体可以包括:根据路由信息指示的输出端口查询记录或计算,调用装置中的控制信号产生模块生成相应的控制信号,进而数据分组交换模块根据该控制信号调整模块中负责链路切换的多个开关器件状态以实现交换光路的建立。
需要注意的,若该输出端口为第一次使用,即该输出端口与对应接收机上接收端口之间的传输链路上当前无传输中的填充分组时,还需要在执行S203步骤操作之前,执行S202A步骤,在接收到第一数据分组前,通过输出端口发送填充分组,以便接收机根据填充分组提前进行调整。
S202A、在接收到第一数据分组前,通过输出端口发送填充分组。
具体的,光交换装置在确定输出端口空闲,该输出端口与对应接收机上接收端口之间的传输链路上当前无传输中的填充分组,且 未接收到待传输交换的上述第一数据分组时,获取通过该输出端口发送填充分组时的放大系数,并在根据该放大系数对填充分组进行调整后,通过该输出端口发送填充分组。
其中,填充分组为用于填充数据分组间隔且不包含有效信息的信号光,可以通过调用光交换装置中填充分组产生模块生成。
发送填充分组时的放大系数为发出填充分组前,对填充分组产生模块产生的填充字段进行放大调整的调整参数,以使得调整后输出的填充分组满足一定的功率要求,便于接收机根据填充分组提前做出调整。
值得一提的,若第一控制分组路由信息中包括指示第一数据分组对应的放大系数的相关信息,则上述获取通过该输出端口发送填充分组时的放大系数可以为直接从路由信息中获取放大系数;
或者,若不包括,则可以根据输出端口,查询链路参数表获取放大系数。该链路参数表为光交换装置中记录各输出端口与各填充分组的放大系数之间对应关系的映射表。且该链路参数表中记录的对应关系为系统或用户根据不同传输及交换路径的损耗情况预先外部设定的,具体的对应关系根据应用场景的不同存在一定差异,此处不做限定,通过查询该表,即可根据不同输出端口对应传输链路的损耗情况,确定填充分组的放大系数;
且根据实际应用场景的需求,上述放大系数还可以选用预设的固定放大系数,该预设的固定放大系数可以为系统缺省设定,也可以为用户外部输入给定,此处不做限定。
进一步的,光交换装置可通过控制填充分组产生模块中的光门,对生成的填充字段进行控制及调节,该光门为放大系数可调的光放大器,在本示例中,可以为SOA(Semiconductor Optical Amplifier,半导体光放大器),且对具体应用场景中的光门选择,此处不进行限定。通过根据填充分组的放大系数控制光门的打开或关闭,例如:当放大系数小于或等于预设门限值时光门关闭,大于预设门限值时以设定的放大系数调整填充分组,实现对填充分组的调整及发送。
示例性的,光交换装置获取发送填充分组时的放大系数,根据该放大系数控制光门打开并进行放大调整后,通过该输出端口发送调整后的填充分组,使填充在数据分组间隔的填充分组光信号与其后的第一数据分组光信号的光强保持一致或达到一个设定的光强。
S203、通过输出端口发送第一数据分组。
具体的,光交换装置在接收到第一数据分组时,通过输出端口透明传输第一数据分组至接收机。
需要注意的,光交换装置在数据分组交换模块接收到第一数据分组,即需要使用输出端口与对应接收机上接收端口之间的传输链路传输所述第一数据分组时,控制填充分组产生模块的光门关闭(可通过调整放大系数为一个小于或等于预设门限值的系数值实现),停止通过该输出端口当前正在传输的填充分组,以保证对第一数据分组的正常传输。
可选的,光交换装置还可以根据控制分组接收模块接收到第一控制分组的时刻,间隔预设时间差值后,控制填充分组产生模块停止该输出端口上对填充分组的发送。其中,预设时间差值为光突发交换网中各控制分组与其对应数据分组的发送时间差值,可以为系统缺省设定,也可以为用户外部输入给定,此处不做限定。
值得一提的,光交换装置在通过该输出端口发送第一数据分组时,需要将光交换装置上该输出端口对应的状态标识置为“忙”,以表明该输出端口正在进行数据分组的发送,避免此时发送填充分组造成信号出错。
S204、对输出端口进行监控。
具体的,光交换装置在通过输出端口发送第一数据分组时,对该输出端口进行监控,以便在该第一数据分组传输结束后确定该输出端口空闲。
示例性的,光交换装置获取第一数据分组的分组长度,并在开始传输第一数据分组时,启动计数器,该计时器可以用于统计已传输的数据量。当计数器统计确定已传输数据长度与第一数据分组的 分组长度相同时,表明第一数据分组传输结束,即该输出端口恢复为空闲状态。
其中,上述第一数据分组的分组长度可以包含在路由信息中,也可以为系统缺省设定或外部输入给定的预设数据分组长度值,具体获取第一数据分组的分组长度的方式根据应用场景的不同可能存在一定的差异,此处不做限定。
值得一提的,光交换装置在确定第一数据分组传输结束,输出端口恢复空闲时,需要将光交换装置上该输出端口对应的状态标识置为“闲”,以表明与该输出端口与对应接收机上接收端口之间的传输链路上不存在正在传输的数据分组,以便后续操作根据该状态标识发送填充分组。
S205、在监控确定输出端口空闲后,通过该输出端口发送填充分组。
具体的,光交换装置在监控确定输出端口空闲,即第一数据分组的发送已完成后,获取发送填充分组时对应的第一放大系数,并在根据该第一放大系数对填充分组进行调整后,通过该输出端口发送填充分组。
其中,光交换装置可根据输出端口对应的状态标识确定该输出端口与对应接收机上接收端口之间的传输链路当前状态是否为空闲;
值得一提的,光交换装置可根据已传输的第一数据分组的信号功率或第一控制分组中路由信息的指示,获取第一数据分组对应的放大系数,作为第一放大系数;或者,根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第一放大系数;或者,根据实际应用场景的需求,获取预设的固定放大系数作为第一放大系数,该预设的固定放大系数可以为系统缺省设定,也可以为用户外部输入给定,此处不做限定。
由于根据该第一放大系数对填充分组进行调整以及发送调整后填充分组的操作与S202A步骤中相应操作相同,此处不再赘述。
进一步的,光交换装置在控制分组接收模块接收到指示使用的输出端口与上述第一数据分组的输出端口相同的第二控制分组时,需要使用与上述第一数据分组相同的输出端口发送对应的第二数据分组,由于接收机接收到的数据分组(如上述第一数据分组与该第二数据分组)可能来自不同的源端设备,即可能经过了不同的交换光路,存在不同的损耗,需要根据每个数据分组的强度来调整增益和阈值,牺牲了数据分组中的有效数据。
因而,光交换装置需要获取发送填充分组时对应的第二放大系数,进一步调整填充分组,便于接收机根据调整后的填充分组在接收第二数据分组之前,提前做出调整。
示例性的,光交换装置在控制分组接收模块接收到第二控制分组后,根据第二控制分组中路由信息指示的相关信息,或,根据控制分组到达时刻与相应数据分组到达时刻问的预设时间差值,确定接收第二数据分组的时刻,以便在该接收第二数据分组的时刻前的预设准备时间内,使用发送填充分组时对应的第二放大系数,控制填充分组产生模块调整发送中的填充分组的信号功率。
需要注意的,上述预设准备时间为在通过该输出端口向接收机发送第二数据分组前,发送填充分组以便接收机提前针对第二数据分组进行调整的时间,可以为系统缺省设定值,也可以为用户外部输入给定值,此处不做限定。
可以看出,若第一数据分组发送结束的时刻不在上述接收第二数据分组的时刻前的预设准备时间内,则光交换装置在第一数据分组发送结束后,根据第一放大系数调整并发送调整后的填充分组,且在进入上述预设准备时间后,根据第二放大系数调整并发送调整后的填充分组。
或者,若第一数据分组发送结束的时刻在上述接收第二数据分组的时刻前的预设准备时间内,则光交换装置不再根据第一放大系数调整填充分组,直接根据第二放大系数调整并发送调整后的填充分组。
其中,若第二控制分组的路由信息中包括对第二数据分组对应的放大系数的指示,则可以将该第二数据分组对应的放大系数作为上述发送填充分组时对应的第二放大系数;以便使得调整后发送的填充分组光信号与之后发送的第二数据分组光信号的光强一致。
或者,可以将查询链路参数表获取的输出端口对应放大系数作为第二放大系数;且根据实际应用场景的需求,还可以获取预设的固定放大系数作为第二放大系数,该预设的固定放大系数可以为系统缺省设定,也可以为用户外部输入给定,此处不做限定。
由于根据该第二放大系数对填充分组进行调整以及发送调整后填充分组的操作与S202A步骤中相应操作相同,此处不再赘述。
进而,将第二控制分组作为操作对象,重新执行上述S201至S205步骤操作,即可对接收到的第二控制分组及后续接收的第二数据分组进行相应处理,以保证该输出端口上后续传输的正常进行。
值得一提的,在光突发交换网的应用场景下,光交换装置每次在接收到的控制分组及其对应的数据分组时执行上述S201至S205步骤操作,对于接收机上的同一个接收端口,即可输出如图5所示的一路存在间隔的数据分组信号光以及一路存在间隔的填充分组信号光,且由于填充分组是由光交换装置在监控确定输出端口空闲时发出的,根据链路状态精确控制发出时刻和时长,因而两路光信号在时间上相互错开,没有重叠且互不干扰,进而能够通过调用光交换装置中复用模块的复用功能将两路光进行复用,获取如图6所示的一路信号光输出,在一根光纤中同时传输至接收机,以便接收机接收连续的信号光,使接收机中的电容始终处于充电状态,缩短接收机的响应时间且不会造成系统设计的复杂化。
本发明实施例提供一种光交换信号处理方法,通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。这样,能够根据输出端口状态,在交换的数据分组之间适时发送填充分组, 以便接收机能够接收到连续信号,解决了现有技术中接收机响应时间过长,额外填充较长的光信号造成链路严重浪费,光交换系统性能降低的问题。因此,本发明的实施例相对于现有技术,保证了传输信号的连续,缩短了接收机的响应时间,提高了光交换系统的性能。
本发明实施例提供一种光交换装置01,用于实施本发明实施例提供的光交换信号处理方法,如图7所示,该光交换装置01包括:
接收单元011,用于接收第一控制分组。
其中,第一控制分组用于携带对应第一数据分组的路由信息,路由信息包括第一数据分组的输出端口及分组长度;
交换单元012,用于接收第一控制分组对应的第一数据分组,并通过输出端口发送第一数据分组;
填充单元013,用于在根据分组长度监控确定输出端口空闲后,通过输出端口发送填充分组。
其中,填充分组为不包含有效信息的信号光。
需说明的是,其中虚线表示单元之间可以具备连接关系,也可以不具备直接的连接关系,比如交换单元012和填充单元013之间可以不存在信息交互,交换单元012可以在进行第一数据分组传输时通知填充单元013,也可以没有通知,由装置进行统一调控。
可选的,填充单元013可以用于:
在通过输出端口发送第一数据分组开始时,启动计数器,当计数器计数获取的已传输数据长度等于分组长度时,确定第一数据分组传输结束,输出端口空闲。
可选的,填充单元013还可以用于:
获取填充分组的第一放大系数;
根据第一放大系数,调整填充分组的信号功率,并通过输出端口发送使用第一放大系数调整后的填充分组。
可选的,在交换单元012通过输出端口发送第一数据分组之后,接收单元011还可以用于:在接收到指示使用相同的输出端口的第 二控制分组后,确定接收第二控制分组对应的第二数据分组的时刻;
进一步的,填充单元013可以具体用于:
获取填充分组的第二放大系数;
在接收第二数据分组的时刻前的预设准备时间内,根据第二放大系数,调整填充分组的信号功率,并通过输出端口发送使用第二放大系数调整后的填充分组。
可选的,填充单元013还可以具体用于:
获取预设的固定放大系数作为第一放大系数;或,
根据已传输的第一数据分组的信号功率或第一控制分组中路由信息的指示,获取第一数据分组对应的放大系数,作为第一放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第一放大系数,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
可选的,填充单元013还可以具体用于:
获取预设的固定放大系数作为第二放大系数;或,
获取第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为第二放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第二放大系数,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
本发明实施例提供一种光交换装置,通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。这样,能够根据输出端口状态,在交换的数据分组之间适时发送填充分组,解决了接收机接收数据分组时响应时间过长导致链路浪费、光交换系统性能降低的问题,保证了传输信号的连续,缩短了接收机的响应时间,提高了光交换系统的性能。
本发明实施例提供一种光交换装置02,用于实施本发明实施例提供的光交换信号处理方法,如图8所示,该光交换装置02包括:
总线021,以及连接到总线的处理器022、存储器023、交换器024和接025,其中接025用于与外部设备进行通信;
存储器023用于存储指令,该处理器022执行该指令用于接收第一控制分组,第一控制分组用于携带对应第一数据分组的路由信息,路由信息包括第一数据分组的输出端口及分组长度。
该处理器022执行该指令还用于通过交换器024接收第一控制分组对应的第一数据分组,并通过输出端口发送第一数据分组。
该处理器022执行该指令还用于在根据分组长度监控确定输出端口空闲后,通过输出端口发送填充分组,填充分组为不包含有效信息的信号光。
在本发明实施例中,可选的,该处理器022执行该指令可以具体用于:
在通过输出端口发送第一数据分组开始时,启动计数器,当计数器计数获取的已传输数据长度等于分组长度时,确定第一数据分组传输结束,输出端口空闲。
在本发明实施例中,可选的,该处理器022执行该指令可以具体用于:
获取填充分组的第一放大系数;
根据第一放大系数,调整填充分组的信号功率,并通过输出端口发送使用第一放大系数调整后的填充分组。
在本发明实施例中,可选的,在处理器022执行指令通过输出端口发送第一数据分组之后,该处理器022执行该指令可以具体用于:
在接收到指示使用相同的输出端口的第二控制分组后,确定接收第二控制分组对应的第二数据分组的时刻;
处理器执行指令通过输出端口发送填充分组包括:
获取填充分组的第二放大系数;
在接收第二数据分组的时刻前的预设准备时间内,根据第二放大系数,调整填充分组的信号功率,并通过输出端口发送使用第二放大系数调整后的填充分组。
在本发明实施例中,可选的,该处理器022执行该指令可以具体用于:
获取预设的固定放大系数作为第一放大系数;或,
根据已传输的第一数据分组的信号功率或第一控制分组中路由信息的指示,获取第一数据分组对应的放大系数,作为第一放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第一放大系数,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
在本发明实施例中,可选的,该处理器022执行该指令可以具体用于:
获取预设的固定放大系数作为第二放大系数;或,
获取第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为第二放大系数;或,
根据输出端口查询链路参数表获取输出端口对应的放大系数,作为第二放大系数,链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
本发明实施例提供一种光交换装置,通过接收第一控制分组,获取其中路由信息指示的第一数据分组的输出端口及分组长度,进而使用该输出端口发送第一数据分组,最后在根据分组长度监控确定输出端口空闲后,通过该输出端口发送填充分组。这样,能够根据输出端口状态,在交换的数据分组之间适时发送填充分组,解决了接收机接收数据分组时响应时间过长导致链路浪费、光交换系统性能降低的问题,保证了传输信号的连续,缩短了接收机的响应时间,提高了光交换系统的性能。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统, 设备和方法,可以通过其它的方式实现。例如,以上所描述的设备实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。
另外,在本发明各个实施例中的设备和系统中,各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理包括,也可以两个或两个以上单元集成在一个单元中。且上述的各单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成,前述的程序可以存储于一计算机可读取存储介质中,该程序在执行时,执行包括上述方法实施例的步骤;而前述的存储介质包括:U盘、移动硬盘、ROM(Read Only Memory,只读存储器)、RAM(Random Access Memory,随机存取存储器)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种光交换信号处理方法,其特征在于,包括:
    接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
    接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
    在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
  2. 根据权利要求1所述的方法,其特征在于,所述根据所述分组长度监控确定所述输出端口空闲包括:
    在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时,确定所述第一数据分组传输结束,所述输出端口空闲。
  3. 根据权利要求1或2所述的方法,其特征在于,所述通过所述输出端口发送填充分组包括:
    获取所述填充分组的第一放大系数;
    根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分组。
  4. 根据权利要求1至3任一所述的方法,其特征在于,在所述通过所述输出端口发送所述第一数据分组之后,所述方法还包括:
    在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
    所述通过所述输出端口发送填充分组包括:
    获取所述填充分组的第二放大系数;
    在接收所述第二数据分组的时刻前的预设准备时间内,根据所述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
  5. 根据权利要求3所述的方法,其特征在于,所述获取所述填 充分组的第一放大系数包括:
    获取预设的固定放大系数作为所述第一放大系数;或,
    根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
  6. 根据权利要求4所述的方法,其特征在于,所述获取所述填充分组的第二放大系数包括:
    获取预设的固定放大系数作为所述第二放大系数;或,
    获取所述第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为所述第二放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
  7. 一种光交换装置,其特征在于,包括:
    接收单元,用于接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
    交换单元,用于接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
    填充单元,用于在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
  8. 根据权利要求7所述的装置,其特征在于,所述填充单元用于:
    在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时, 确定所述第一数据分组传输结束,所述输出端口空闲。
  9. 根据权利要求7或8所述的装置,其特征在于,所述填充单元用于:
    获取所述填充分组的第一放大系数;
    根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分组。
  10. 根据权利要求7至9任一所述的装置,其特征在于,在所述交换单元通过所述输出端口发送所述第一数据分组之后,
    所述接收单元还用于:在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
    所述填充单元还用于:
    获取所述填充分组的第二放大系数;
    在接收所述第二数据分组的时刻前的预设准备时间内,根据所述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
  11. 根据权利要求9所述的装置,其特征在于,所述填充单元用于:
    获取预设的固定放大系数作为所述第一放大系数;或,
    根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
  12. 根据权利要求10所述的装置,其特征在于,所述填充单元用于:
    获取预设的固定放大系数作为所述第二放大系数;或,
    获取所述第二控制分组中路由信息指示的第二数据分组对应的 放大系数,作为所述第二放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
  13. 一种光交换信号处理装置,其特征在于,包括:总线、以及连接到所述总线的处理器、存储器、交换器和接口;所述存储器用于存储指令;所述处理器执行所述指令用于:
    接收第一控制分组,所述第一控制分组用于携带对应第一数据分组的路由信息,所述路由信息包括所述第一数据分组的输出端口及分组长度;
    通过所述交换器接收所述第一控制分组对应的所述第一数据分组,并通过所述输出端口发送所述第一数据分组;
    在根据所述分组长度监控确定所述输出端口空闲后,通过所述输出端口发送填充分组,所述填充分组为不包含有效信息的信号光。
  14. 根据权利要求13所述的装置,其特征在于,所述处理器执行所述指令具体用于:
    在通过所述输出端口发送所述第一数据分组开始时,启动计数器,当所述计数器计数获取的已传输数据长度等于所述分组长度时,确定所述第一数据分组传输结束,所述输出端口空闲。
  15. 根据权利要求13或14所述的装置,其特征在于,所述处理器执行所述指令具体用于:
    获取所述填充分组的第一放大系数;
    根据所述第一放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第一放大系数调整后的所述填充分组。
  16. 根据权利要求13至15任一所述的装置,其特征在于,在所述处理器执行所述指令通过所述输出端口发送所述第一数据分组之后,所述处理器执行所述指令还用于:
    在接收到指示使用相同的所述输出端口的第二控制分组后,确定接收所述第二控制分组对应的第二数据分组的时刻;
    所述处理器执行所述指令通过所述输出端口发送填充分组包括:
    获取所述填充分组的第二放大系数;
    在接收所述第二数据分组的时刻前的预设准备时间内,根据所述第二放大系数,调整所述填充分组的信号功率,并通过所述输出端口发送使用所述第二放大系数调整后的所述填充分组。
  17. 根据权利要求15所述的装置,其特征在于,所述处理器执行所述指令具体用于:
    获取预设的固定放大系数作为所述第一放大系数;或,
    根据已传输的所述第一数据分组的信号功率或所述第一控制分组中路由信息的指示,获取所述第一数据分组对应的放大系数,作为所述第一放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第一放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
  18. 根据权利要求16所述的装置,其特征在于,所述处理器执行所述指令具体用于:
    获取预设的固定放大系数作为所述第二放大系数;或,
    获取所述第二控制分组中路由信息指示的第二数据分组对应的放大系数,作为所述第二放大系数;或,
    根据所述输出端口查询链路参数表获取所述输出端口对应的放大系数,作为所述第二放大系数,所述链路参数表为记录各输出端口与各填充分组的放大系数之间对应关系的映射表。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112788440A (zh) * 2019-11-04 2021-05-11 中国移动通信有限公司研究院 一种数据传输方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101677416A (zh) * 2008-09-19 2010-03-24 中国科学院西安光学精密机械研究所 一种超高速光突发交换网的组包和解包方法及其系统
CN101720050A (zh) * 2010-01-11 2010-06-02 浙江工业大学 用于光突发交换网络核心节点的光交叉连接装置
CN101778047A (zh) * 2010-02-09 2010-07-14 重庆邮电大学 解决光交换分组竞争的方法及光电混合缓存装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102082725A (zh) * 2010-12-02 2011-06-01 南京莱斯信息技术股份有限公司 多端口通信协议的交换方法
WO2011144085A2 (zh) * 2011-05-25 2011-11-24 华为技术有限公司 数据传输方法和基站

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101677416A (zh) * 2008-09-19 2010-03-24 中国科学院西安光学精密机械研究所 一种超高速光突发交换网的组包和解包方法及其系统
CN101720050A (zh) * 2010-01-11 2010-06-02 浙江工业大学 用于光突发交换网络核心节点的光交叉连接装置
CN101778047A (zh) * 2010-02-09 2010-07-14 重庆邮电大学 解决光交换分组竞争的方法及光电混合缓存装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112788440A (zh) * 2019-11-04 2021-05-11 中国移动通信有限公司研究院 一种数据传输方法及设备
CN112788440B (zh) * 2019-11-04 2023-07-21 中国移动通信有限公司研究院 一种数据传输方法及设备

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