WO2016123975A1 - 数据传输方法及装置 - Google Patents

数据传输方法及装置 Download PDF

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Publication number
WO2016123975A1
WO2016123975A1 PCT/CN2015/089187 CN2015089187W WO2016123975A1 WO 2016123975 A1 WO2016123975 A1 WO 2016123975A1 CN 2015089187 W CN2015089187 W CN 2015089187W WO 2016123975 A1 WO2016123975 A1 WO 2016123975A1
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WIPO (PCT)
Prior art keywords
rapidio
packet
transport network
mapping relationship
mapping
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PCT/CN2015/089187
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English (en)
French (fr)
Chinese (zh)
Inventor
汪立林
杜超
王仰锋
刘凯
赵幸
Original Assignee
中兴通讯股份有限公司
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Priority to JP2017541292A priority Critical patent/JP6648149B2/ja
Publication of WO2016123975A1 publication Critical patent/WO2016123975A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management

Definitions

  • the present invention relates to the field of communications, and in particular to a data transmission method and apparatus.
  • the radio access network is a base station (Base Station, abbreviated as BS) and a base station controller (BSC) or a radio network controller (Radio Network Controller, It is abbreviated as RNC.
  • BS Base Station
  • BSC base station controller
  • RNC Radio Network Controller
  • the mobile communication technology is rapidly developed by 2G/3G/4G. Due to factors such as the maintenance of the base station, there are more and more application scenarios for the message exchange between the base stations and the base station configuration information.
  • the data of a certain memory space inside the base station device needs to be moved to a specified memory space of the target base station.
  • the data is moved by the RapidIO interconnection device in the form of a message, and the transition between the RapidIO message and the transmission network message, and the forwarding of the transmission network, and finally moved to the specified memory space.
  • the base station In addition to the RapidIO transport and transmission network transmission, the base station needs to complete the mutual conversion between the RapidIO packet and the transport network packet in order to realize the transmission of the memory message of the base station in the transmission network. Since the interaction of the message is timely transmitted to the interacting base station, the transmission process delay is too large, and the receiving base station cannot receive the interactive message of the opposite base station, which affects the communication performance between the devices. In the current technical implementation solution, the message conversion process introduces a large fixed delay, especially when the message length is long, and the delay is larger. The large delay problem of the message in the processing process severely restricts the improvement of the communication performance between the base station devices.
  • an embodiment of the present invention provides a data transmission method and apparatus.
  • a data transmission method including: a source device moves data to be transmitted in a source device memory to a RapidIO packet according to a correspondence between a RapidIO address space and the source device memory, and Converting the RapidIO packet into a transport network packet; the source device sends the transport network packet to the destination device; and the destination device converts the received transport network packet into a RapidIO packet; Describe the device according to the RapidIO address space and The corresponding relationship of the memory in the destination device moves the RapidIO packet to a specified storage location of the memory, where the specified storage location corresponds to a RapidIO address space carried in the RapidIO packet.
  • the corresponding relationship between the RapidIO address space and the memory is set by: defining a message type of the RapidIO packet, where different message types correspond to different memory storage locations;
  • the message type of the RapidIO packet sets the correspondence between the RapidIO address space and the specified storage location of the memory.
  • the destination device before the destination device moves the RapidIO packet to the specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device, the destination device further includes:
  • the destination device obtains the RapidIO address space information according to the header of the RapidIO packet and a preset mapping relationship, where the mapping relationship is a mapping relationship between the header and the RapidIO address space.
  • a data transmission method including: receiving a transport network packet sent by a source device; mapping the transport network packet to a RapidIO packet according to a preset mapping relationship; according to RapidIO Corresponding relationship between the address space and the storage location of the memory in the destination device, the RapidIO packet is transmitted to the specified storage location of the memory, where the specified storage location corresponds to the RapidIO address space carried in the RapidIO packet.
  • the mapping relationship includes: a first mapping relationship; mapping the transport network packet to a RapidIO packet according to a preset mapping relationship, including: a first fragmentation report for the transport network packet Obtaining a RapidIO device identifier according to the first mapping relationship according to the header information of the first fragmentation packet or the non-fragmentation packet according to the first fragmentation packet or the non-fragmentation packet header; according to the RapidIO device The identifier is mapped to the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier.
  • the mapping relationship further includes: a second mapping relationship; mapping the transport network packet to the RapidIO packet according to the mapping relationship, including: in the fragmented packet of the transport network packet A packet other than the first fragment packet, according to the header of the other packet, obtains a transport network routing address and/or a fragmented packet identifier; according to the routing address and/or the fragmented packet identifier according to the second mapping Obtaining a header of the transport network packet; acquiring the RapidIO device identifier according to the header of the transport network packet and the first mapping relationship; and mapping the transport network packet to the remote IP address according to the RapidIO device identifier The RapidIO packet of the RapidIO device indicated by the RapidIO device identifier.
  • the RapidIO device identifier includes at least one of the following: a device number of the RapidIO device and the RapidIO address space.
  • the correspondence between the RapidIO address space and the memory is set by: defining a message type of the RapidIO packet, where different message types correspond to different memory storage locations; according to the RapidIO packet The message type sets the correspondence between the RapidIO address space and the specified storage location of the memory.
  • a data transmission method including: moving data to be transmitted in the memory to the RapidIO according to a correspondence between a RapidIO address space in a RapidIO packet and a memory in a source device.
  • the RapidIO packet is mapped to a transport network packet according to a preset mapping relationship; and the transport network packet is transmitted to the destination device.
  • the mapping relationship includes: a first mapping relationship; mapping the RapidIO packet to a transport network packet according to a preset mapping relationship, including: a first fragmentation of the RapidIO packet Obtaining, according to the first mapping relationship, the RapidIO device identifier according to the header of the first fragmentation packet or the non-fragmented packet, according to the header information of the packet or the non-fragmented packet of the RapidIO packet; The RapidIO device identifier maps the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier to the transport network packet.
  • the mapping relationship includes: a second mapping relationship; mapping the RapidIO packet to a transport network packet according to a preset mapping relationship, including: a fragment report for the RapidIO packet
  • the packet other than the first fragment packet receives the routing address and/or the fragment packet identifier of the transport network according to the header of the other packet; and identifies the routing address and/or the fragment packet according to the routing address.
  • Acquiring the header of the RapidIO packet according to the second mapping relationship acquiring the RapidIO device identifier according to the header of the transport network packet and the first mapping relationship; and the RapidIO device identifier according to the RapidIO device identifier
  • the RapidIO packet indicating the RapidIO device is mapped to the transport network packet.
  • a data transmission system including: a source device, configured to move data to be transmitted in the source device memory to RapidIO according to a correspondence between a RapidIO address space and the source device memory. Transmitting, in the message, the RapidIO packet to a transport network packet, and sending the transport network packet to the destination device; the destination device is configured to convert the received transport network packet into a RapidIO packet, and the RapidIO packet is moved to a specified storage location of the memory according to a correspondence between the RapidIO address space and the memory in the destination device, where the specified storage location is carried in the RapidIO packet.
  • the RapidIO address space is corresponding.
  • the source device and/or the destination device are further configured to set a correspondence between a RapidIO address space and a memory by: defining a message type of the RapidIO packet, where different message types correspond to Different memory storage locations; setting a correspondence between the RapidIO address space and the memory specified storage location according to the message type of the RapidIO packet.
  • the destination device is further configured to obtain the RapidIO address space information according to a header of the RapidIO packet and a preset mapping relationship, where the mapping relationship is the header and the location.
  • the mapping relationship of the RapidIO address space is further configured to obtain the RapidIO address space information according to a header of the RapidIO packet and a preset mapping relationship, where the mapping relationship is the header and the location.
  • a data transmission apparatus including: a receiving module, configured to receive a transport network message sent by the source device; and a mapping module configured to set the transmission network according to a preset mapping relationship The packet is mapped to a RapidIO packet; the transmission module is configured to transmit the RapidIO packet to a specified storage location of the memory according to a correspondence between the RapidIO address space and a storage location of the memory in the destination device, where the specified storage location Corresponding to the RapidIO address space carried in the RapidIO packet.
  • the mapping module is configured to: when the mapping relationship includes: the first mapping relationship, the first acquiring unit is configured to be in a first fragmented message or a message for the transport network packet
  • the RapidIO device identifier is obtained according to the first mapping relationship according to the header of the first fragmented packet or the non-fragmented packet;
  • the RapidIO device identifier maps the transport network message to a RapidIO packet of the RapidIO device indicated by the RapidIO device identifier.
  • the mapping module is configured to include: when the mapping relationship further includes: the second mapping relationship:
  • the second obtaining unit is configured to obtain, according to the header of the other packet, the routing address and/or the fragmentation report of the transmission network according to the header of the other packet in the fragmented packet of the transport network packet.
  • a third obtaining unit configured to acquire a header of the transport network packet according to the second mapping relationship according to the routing address and/or the fragment packet identifier; and the fourth acquiring unit is configured to be according to the transport network
  • the header of the packet and the first mapping relationship are used to obtain the identifier of the RapidIO device.
  • the mapping unit is further configured to map the transport network packet to the RapidIO device indicated by the RapidIO device identifier according to the RapidIO device identifier. RapidIO message.
  • a data transmission apparatus including: a moving module, configured to: the data to be transmitted in the memory according to a correspondence between a RapidIO address space in a RapidIO packet and a memory in a source device; Moving to the RapidIO packet; the mapping module is configured to map the RapidIO packet to a transport network packet according to a preset mapping relationship; and the transmitting module is configured to transmit the transport network packet to the destination device .
  • the mapping module is configured to: when the mapping relationship includes: the first mapping relationship, the method includes: a first acquiring unit, configured to be the first fragmented packet of the RapidIO packet, or the The non-fragmented packet of the RapidIO packet is obtained according to the first mapping relationship according to the header information of the first fragmentation packet or the non-fragment packet, and the mapping unit is set according to the The RapidIO device identifier maps the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier to the transport network packet.
  • the mapping module is configured to: when the mapping relationship includes: the second mapping relationship, the second acquiring unit is configured to divide the first packet into the fragmented packet of the RapidIO packet.
  • the packet other than the fragment packet obtains the transport network routing address and/or the fragment packet identifier according to the header of the other packet, and the third acquiring unit is configured to be based on the routing address and/or the fragment report.
  • the fourth acquiring unit is configured to acquire the identifier of the RapidIO device according to the header of the transport network packet and the first mapping relationship; And mapping, according to the RapidIO device identifier, the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier to the transport network packet.
  • the source device first moves the data to be transmitted to the RapidIO packet, and converts the RapidIO packet into a transport network packet and sends the packet to the destination device.
  • the received transport network packet is converted into a RapidIO packet, and the RapidIO packet is moved to a specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device.
  • FIG. 1 is a structural diagram of a radio access network in a related art
  • FIG. 2 is a schematic diagram of a message exchange process between base stations in the related art
  • FIG. 3 is a schematic diagram of a message interaction process of large traffic between base stations in the related art
  • FIG. 4 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a solution to a data processing delay problem between internal devices of a base station according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a mapping relationship of a data transfer process according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 8 is a block diagram showing still another structure of a data transmission apparatus according to an embodiment of the present invention.
  • FIG. 9 is still another flowchart of a data transmission method according to an embodiment of the present invention.
  • Figure 10 is a block diagram of a further structure of a data transmission device according to an embodiment of the present invention.
  • Figure 11 is a block diagram showing still another structure of a data transmission device according to an embodiment of the present invention.
  • FIG. 12 is another flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 13 is a structural block diagram of a data transmission system according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of data processing of a transmission network device in a transmission process according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of data processing of a transmission process of a RapidIO interconnection device according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:
  • Step S402 Receive a transport network packet sent by the source device.
  • Step S404 mapping the transport network packet to a RapidIO packet according to a preset mapping relationship
  • Step S406 according to the correspondence between the RapidIO address space and the storage location of the memory in the destination device, The RapidIO packet is transmitted to the specified storage location of the memory, where the specified storage location corresponds to the RapidIO address space carried in the RapidIO packet.
  • step S404 can be implemented in the following two situations:
  • the RapidIO device identifier in the following two cases includes at least one of the following: the device number of the RapidIO device and the RapidIO address space.
  • step S404 is implemented according to the following technical solution: for the first fragmented packet of the transport network packet or the non-fragmented packet of the transport network packet, Obtaining, according to the foregoing first mapping relationship, the RapidIO device identifier according to the header of the first fragmentation packet or the non-fragmentation packet; mapping the transport network packet to the RapidIO of the RapidIO device indicated by the RapidIO device identifier according to the foregoing RapidIO device identifier Message.
  • step S404 the technical solution embodied in step S404 is implemented according to the following technical solution: for the packet other than the first fragmented packet in the fragmented packet of the transport network packet, Obtaining, according to the header of the other packet, the routing address of the transmission network and/or the identifier of the fragmented packet; obtaining the header of the transport network packet according to the second mapping relationship according to the routing address and/or the fragmented packet identifier; according to the foregoing header and The first mapping relationship acquires the identifier of the RapidIO device, and the foregoing transport network packet is mapped to the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier according to the foregoing RapidIO device identifier.
  • the correspondence between the RapidIO address space and the storage location of the base station memory is set by: defining a message type of the RapidIO packet, where different message types correspond to different The memory storage location is set according to the message type of the above RapidIO packet, and the corresponding relationship between the RapidIO address space and the memory specified storage location is set.
  • the technical solution provided by the embodiment of the present invention solves the large delay of data processing between internal devices of the base station system by rationally dividing the memory space and mapping rules during data conversion. problem.
  • this mapping rule (as shown in FIG. 6), the data transmission process between devices does not need to be processed and reorganized.
  • the destination address of the transmission process and the destination memory of the data transfer can be obtained, thereby realizing the base station device.
  • Data transmission and exchange method with large capacity and low latency.
  • a data transmission device is also provided in the embodiment to implement the above-mentioned embodiments and preferred embodiments.
  • the descriptions of the modules involved in the device are described below.
  • the term "module” A block" can implement a combination of software and/or hardware for a predetermined function.
  • the devices described in the following embodiments are preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • 7 is a structural block diagram of a data transmission apparatus according to an embodiment of the present invention, as shown in FIG. 7, including:
  • the receiving module 70 is configured to receive a transport network packet sent by the source device.
  • the mapping module 72 is connected to the receiving module 70, and is configured to map the transport network packet into a RapidIO packet according to a preset mapping relationship;
  • the transmission module 74 is connected to the mapping module 72, and configured to transmit the RapidIO packet to a specified storage location of the memory according to a correspondence between a RapidIO address space and a storage location of a base station memory, wherein the designated storage location and the RapidIO packet are The RapidIO address space carried in the text is corresponding.
  • the transport network packet received from the source device can be mapped to the RapidIO packet according to the preset mapping relationship, and then the RapidIO packet is transmitted to the specified storage location of the memory.
  • the technical means solves the problem that the communication performance between the base station devices is poor and the link bandwidth is low caused by the large delay in the base station information interaction process in the related art, and the delay of the data processing process is reduced, and the maximum delay can be achieved. Take advantage of the bandwidth resources of the transport network link.
  • the mapping module 72 is configured to: when the mapping relationship includes: the first mapping relationship, the first obtaining unit 720 is configured to set the first fragmented packet or the foregoing transmission to the transport network packet.
  • the non-fragmented packet of the network packet is obtained according to the first mapping relationship of the first fragmentation packet or the non-fragment packet, and the mapping unit 722 is connected to the first obtaining unit 720.
  • the method is configured to map the transport network packet to a RapidIO packet of the RapidIO device indicated by the RapidIO device identifier according to the foregoing RapidIO device identifier.
  • the mapping module 72 is configured to: when the mapping relationship further includes: the second mapping relationship, the second obtaining unit 724 is configured to remove the first fragment from the fragmented packet of the transport network packet.
  • the other packet except the packet obtains the transport network routing address and/or the fragmented packet identifier according to the header of the other packet.
  • the third obtaining unit 726 is connected to the second obtaining unit 724 and configured to be based on the routing address and And the fragmented packet identifier is obtained by acquiring the header of the transport network packet according to the second mapping relationship.
  • the fourth obtaining unit 728 is connected to the second obtaining unit 724, and configured to acquire the RapidIO device according to the foregoing header and the first mapping relationship.
  • the mapping unit 722 is connected to the fourth obtaining unit 728, and is further configured to map the transport network packet to a RapidIO packet of the RapidIO device indicated by the RapidIO device identifier according to the foregoing RapidIO device identifier.
  • FIG. 9 is another flow chart of the data transmission method according to the embodiment of the present invention, as shown in FIG. , including the following steps:
  • Step S902 The data to be transmitted in the memory is moved to the RapidIO packet according to the correspondence between the RapidIO address space and the memory in the source device in the RapidIO packet.
  • Step S904 mapping the RapidIO packet to a transport network packet according to a preset mapping relationship
  • Step S906 transmitting the foregoing transport network message to the destination device.
  • the method of mapping the RapidIO packet to the transport network packet according to the preset mapping relationship and transmitting the transport network packet to the destination device can solve the related information in the related art.
  • the problem of poor communication performance between the base station equipment and the low link bandwidth caused by the large delay is that the delay of the data processing process is reduced, and the bandwidth resources of the transmission network link can be utilized to the utmost.
  • the mapping relationship further includes: when the first mapping relationship is used, the first fragment packet of the RapidIO packet or the non-RapidIO packet is not And the fragmented packet obtains the RapidIO device identifier according to the first mapping relationship according to the first mapping message or the non-fragmented packet header; and the RapidIO device indicates the RapidIO device of the RapidIO device according to the RapidIO device identifier.
  • the text is mapped to the foregoing transport network packet; (2) when the mapping relationship includes: the second mapping relationship, the packet other than the first fragmented packet in the fragmented packet of the RapidIO packet is according to the foregoing
  • the header of the other packet obtains the routing address and/or the fragmented packet identifier of the transport network; and obtains the header of the RapidIO packet according to the second mapping relationship according to the routing address and/or the fragmented packet identifier;
  • the header and the first mapping relationship are used to obtain the foregoing RapidIO device identifier; and the RapidIO device identifier is indicated by the RapidIO device identifier according to the foregoing RapidIO device identifier.
  • the RapidIO message is mapped to the above transport network message.
  • FIG. 10 is a block diagram of still another structure of a data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 10, the method includes:
  • the moving module 100 is configured to move the data to be transmitted in the memory to the RapidIO packet according to the correspondence between the RapidIO address space and the memory in the base station in the RapidIO packet;
  • the mapping module 102 is connected to the mobile module 100, and is configured to map the RapidIO packet to a transport network packet according to a preset mapping relationship.
  • the transmission module 104 is connected to the mapping module 102 and configured to transmit the foregoing transmission network message to the destination device.
  • the technical means for mapping the RapidIO packet to the transport network packet according to the preset mapping relationship and transmitting the transport network packet to the destination device according to another mapping relationship is solved.
  • the problem of poor communication performance between the base station devices and the low link bandwidth caused by the large delay in the base station information interaction process reduces the delay of the data processing process and maximizes the use of the transmission network link. Bandwidth resources.
  • FIG. 11 is a block diagram b of another structure of the data transmission apparatus according to the embodiment of the present invention.
  • the mapping module 102 is further configured to: when the mapping relationship includes: the first mapping relationship, including: An obtaining unit 1020 is configured to: according to the header packet of the RapidIO packet or the non-fragment packet of the RapidIO packet, according to the header of the first fragment packet or the non-fragment packet, according to the foregoing first
  • the mapping relationship acquires the above-mentioned RapidIO device identifier;
  • the mapping unit 1022 is connected to the first obtaining unit 1020, and is configured to mark the above-mentioned RapidIO device according to the above-mentioned RapidIO device identifier.
  • mapping module 102 is configured to: when the mapping relationship includes: the second mapping relationship, the second obtaining unit 1024 is configured to be configured for the RapidIO packet.
  • the packet in the fragmented packet except for the first fragmented packet, obtains the transport network routing address and/or the fragmented packet identifier according to the header of the other packet; the third obtaining unit 1026, and the second obtaining unit a 1024 connection, configured to obtain a header of the RapidIO packet according to the second mapping relationship according to the routing address and/or the fragmentation packet identifier, and the fourth obtaining unit 1028 is connected to the third obtaining unit 1026, and configured to be configured according to the foregoing transmission network.
  • the header of the packet and the first mapping relationship are used to obtain the identifier of the RapidIO device.
  • the mapping unit 1022 is further configured to map the RapidIO packet of the RapidIO device indicated by the RapidIO device identifier to the transport network packet according to the identifier of the RapidIO device.
  • FIG. 12 is another flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 12, the method includes the following steps:
  • Step S1202 The source device moves the data to be transmitted in the source device memory to the RapidIO packet according to the corresponding relationship between the source address and the source device, and converts the RapidIO packet into a transport network packet.
  • Step S1204 The source device sends the foregoing transport network packet to the destination device.
  • Step S1206 The destination device converts the received transport network packet into a RapidIO packet.
  • Step S1208 The destination device moves the RapidIO packet to a specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device, where the designated storage location and the RapidIO address space carried in the RapidIO packet are corresponding.
  • the source device first moves the data to be transmitted to the RapidIO packet, and converts the RapidIO packet into a transport network packet and then sends the packet to the destination device.
  • the received transport network packet is converted into a RapidIO packet, and the RapidIO packet is moved to a specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device.
  • the correspondence between the foregoing RapidIO address space and the foregoing memory may be set by: defining a message type of the above RapidIO packet, where different message types correspond to different memory storage locations; according to the above RapidIO packet
  • the message type sets the mapping relationship between the RapidIO address space and the memory-specific storage location, that is, the different locations in the memory correspond to the RapidIO packets of different message types, and the corresponding relationship may be set by other methods. This is not limited.
  • the destination device obtains the foregoing RapidIO address space information according to the header of the RapidIO packet and a preset mapping relationship, where the mapping relationship is the foregoing header and the RapidIO address space. Mapping relationship, obtaining the RapidIO address space letter according to the above technical solution
  • the destination device moves the RapidIO packet to a specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device.
  • FIG. 13 is a structural block diagram of a data transmission system according to an embodiment of the present invention.
  • the source device 130 is configured to move data to be transmitted in a source device memory according to a correspondence between a RapidIO address space and the source device memory.
  • the RapidIO packet is converted into a transport network packet, and the transport network packet is sent to the destination device;
  • the destination device 132 is connected to the source device 130, and is configured to receive the foregoing transport network.
  • the packet is converted into a RapidIO packet, and the RapidIO packet is moved to a specified storage location of the memory according to the corresponding relationship between the RapidIO address space and the memory in the destination device, where the specified storage location is carried in the RapidIO packet.
  • the RapidIO address space is corresponding.
  • the source device 130 and/or the destination device 132 may set a mapping relationship between the RapidIO address space and the memory by: defining a message type of the RapidIO packet, where different message types correspond to different memory storage locations; The message type of the RapidIO packet sets the correspondence between the RapidIO address space and the memory specified storage location.
  • the destination device 132 is further configured to obtain the RapidIO address space information according to the header of the RapidIO packet and a preset mapping relationship, where the mapping relationship is a mapping relationship between the header and the RapidIO address space.
  • the core idea of an example of the embodiments of the present invention is to provide a new method for data transmission and exchange between large-capacity and low-latency base station devices, and a device capable of implementing the existing method, the example of the present invention is at the source base station.
  • the device and the destination base station device respectively maintain a mapping rule table, and complete the mapping transmission of the RapidIO message and the transport network message through the mapping rule, thereby reducing the fixed delay of the message identification, reassembly, distribution, etc. during the processing, and maximizing the use of the transmission network link.
  • the data bandwidth mainly includes the following steps:
  • the first step reasonably divide the memory address space.
  • the internal devices of the base station move data to each other through the RapidIO device.
  • the memory data is moved in message mode.
  • the message header defines information such as the destination address, source address, and data type of the data.
  • the payload data of a message is the data of the memory space.
  • the header carries the address information of the RapidIO device, and the address space of the RapidIO device is compared with the memory space by reasonably dividing the address space of the memory. Through this correspondence, the RapidIO device can quickly move memory data.
  • the second step is to transmit the network device end.
  • the system device parses the packet and identifies whether the transport network packet needs to be mapped to RapidIO according to the key information such as the protocol type. Message. Based on the consideration of transmission efficiency, the transmission network messages are usually delivered in fragmented form during the delivery process, and the different fragments are alternately transmitted.
  • the message information number is directly extracted through the service data header, and the mapping relationship table is established by the message information number; If the packet is a fragmented packet, the routing information and the IP identifier of the transport network header are used to obtain the message information number by using the mapping relationship table, and the message number maps the address space to map the device identifier and address of the RapidIO device. Information such as space.
  • RapidIO device end as shown in Figure 15, based on the transfer efficiency considerations, RapidIO messages are usually passed
  • the process is delivered in the form of shards, and the different shards are alternately passed.
  • the service data header usually only appears in the first fragmented packet of the RapidIO non-fragmented packet and the fragmented packet.
  • the address space needs to be divided on the receiving side. RapidIO packets are divided into separate address spaces.
  • the control information header can be obtained directly from the service data header according to the first step; for other RapidIO fragmented packets, according to the address space of the RapidIO header.
  • the field information and the address space division rule complete the mutual mapping of the address space and the control information header.
  • each message corresponding to a different memory area; if the device is divided into several subsystems, each subsystem corresponds to a message type. Each subsystem shares or shares storage space.
  • the system receives and parses the transport network packet; and determines whether the current received packet needs to be mapped to the RapidIO packet according to the protocol type of the transport network packet;
  • a transport network packet that needs to be further converted into a RapidIO packet For the first fragmented packet and the non-fragmented packet of the transport network fragmented packet, the message header can be directly obtained according to the service data header, and the map is created and updated.
  • the message is dispatched to the dedicated receiving space of the destination memory, and the transmission of the transport network message to the RapidIO message is completed.
  • a RapidIO packet that needs to be further converted into a transport network packet For the first fragmented packet and the non-fragmented packet of the RapidIO fragmented packet, the message header can be directly obtained according to the service data header, and the message header is created and updated.
  • the above transmission network data and RapidIO data are processed in the transmission process, and the processing of data identification and forwarding is completed by creating and querying the mapping table 1 and the mapping table 2.
  • the mapping implementation of the transmission process can be directly forwarded to the destination memory or the destination address for a fragmented packet or a MAC packet with a long length, without waiting for all fragments or numbers. According to the arrival, you can forward it.
  • the bandwidth of the link is effectively utilized so that it can transmit larger amounts of data.
  • the processing is completed by the search query mapping table.
  • All the data of the transmission network link can be regarded as a series of fragmentation chains, and the operation of the packet header does not need to be reconstructed, so that the link does not need to wait for the processing time of the system.
  • the technical solution provided by the example of the present invention compares the processing mode of the traditional message transmission process, and the transmission mode of the mapping process makes the data processing capability no longer limited by the processing power of the system, to the greatest extent Take advantage of link bandwidth resources. At the same time, the data processing speed is faster, which greatly reduces the fixed delay of the data processing process.
  • the RapidIO switching device or the RapidIO device of the system device When the RapidIO switching device or the RapidIO device of the system device is interconnected, in addition to receiving the RapidIO packet, it also receives the RapidIO device number information for identifying the source device of the RapidIO packet.
  • the RapidIO packet is parsed, and the key information such as the protocol type is used to identify whether the RapidIO packet needs to be converted into an Ethernet packet. If the packet is a non-fragmented packet or a fragmented packet, the mapping table 1 is created by parsing the message header and the RapidIO device number information; If the packet is another fragmented packet, the address of the RapidIO packet is used to query the mapping table 2, and the message header of the current packet data is obtained.
  • the destination packet is obtained according to the obtained message header and the mapping rule of the mapping table 1.
  • the destination routing information and the fragment identifier of the device and forward the current message data to the designated device of the destination base station according to the destination routing information and the fragment identifier.
  • mapping rule of the routing address in the mapping table 1 is implemented as follows:
  • the routing address is mainly the next hop media access control (MAC) address, the destination IP address, and the virtual local area network (VLAN) information.
  • MAC media access control
  • VLAN virtual local area network
  • Table 1 Mapping method of routing address
  • mapping rule of the IP identifier in the mapping table 1 is implemented as follows:
  • the IP fragment identification mainly consists of distinguishing the fragmentation of the same message from the fragmentation of different messages.
  • One of the mapping implementation methods is as follows: All RapidIO devices are numbered, from 1 to M0, for a total of M0; all destination base station devices are numbered, from 1 to M1, for a total of M1; all source base station devices Numbering, numbering from 1 to M2, totaling M2; numbering all packet types, numbering from 1 to M3, totaling M3.
  • All RapidIO devices are numbered, from 1 to M0, for a total of M0; all destination base station devices are numbered, from 1 to M1, for a total of M1; all source base station devices Numbering, numbering from 1 to M2, totaling M2; numbering all packet types, numbering from 1 to M3, totaling M3.
  • the IP identifier only needs to distinguish different fragmented packets within a certain period of time (assuming 10ms), it can be assumed that there are a total of M5 packets in a fixed period of time
  • M0*M1*M2*M3 it is only necessary to make M0*M1*M2*M3 greater than or equal to M5 to distinguish different fragmented messages in a period of time.
  • the IP identification field is numbered from 1 to 40960 and the number is less than 65536. After the number is adjusted, the mapping between the control information header and the fragment identifier is completed.
  • the system device After receiving the Ethernet packet, the system device parses the packet and identifies whether the Ethernet packet needs to be converted into a RapidIO packet according to the key information such as the protocol type. If the packet is a non-fragmented packet or the first fragment of the fragmented packet, the mapping table 2 is created directly through the parsed message header; if the packet is received, For the other packets of the fragmented packet, query the mapping table 1 according to the IP identifier and routing address of the transport network packet, and query the message header of the current packet data; according to the obtained message header and the mapping rule of the mapping table 2, Obtain the address space information of the RapidIO device, and according to the address space, move the current message data to the memory space of the specified device.
  • the mapping table 2 is created directly through the parsed message header; if the packet is received, For the other packets of the fragmented packet, query the mapping table 1 according to the IP identifier and routing address of the transport network packet, and query the message header of the current packet data; according to the obtained message header and
  • mapping table 2 The mapping method of mapping table 2 is implemented as follows:
  • All the destination system configuration information of the message header is numbered, from 1 to M1, for a total of M1; all source system configuration information is numbered, from 1 to M2, for a total of M2; all packet types are performed. Number, number from 1 to M3, totaling M3; each packet type occupies an address space of M4. At the same time, M1*M2*M3*M4 is not larger than the maximum address space of the RapidIO device to access the programmable logic device. After the space division and number adjustment, the mapping between the address space and the message header is completed.
  • the data is transmitted in the transmission network and the RapidIO interconnection architecture, and the data processing completes the identification, movement, forwarding, and the like of the data by creating and querying the mapping table 1 and the mapping table 2.
  • the link data bandwidth can be greatly utilized.
  • the transmission network is a 10G transmission network
  • the packet type of the transmission network is IPV4 fragmented packets
  • the MTU of the fragmented packets is set to 256.
  • the total available payload data of the RapidIO device is about 9 Gbps, and the bandwidth is valid.
  • the utilization rate is over 90%.
  • the transmission network is a 100G transmission network
  • 20 RapidIO devices with a rate of 6.25 Gbps can be interconnected, and the bandwidth utilization rate of each RapidIO device is over 90%.
  • the data transmission capability of the embodiment of the present invention is not limited to the processing capability of the processing system such as the CPU, and is only related to the bandwidth of the transmission link. Thereby achieving high-speed data transmission and exchange capabilities.
  • the above-mentioned transmission network data and RapidIO data are processed in the transmission process, and the data processing is completed by creating and querying the mapping table 1 and the mapping table 2, and relying on the search query mapping table, and the operation of the packet header is not required, so that the link does not need to wait for the system. Processing time.
  • the conversion processing of the transmission network message and the RapidIO message is completed, which can be realized in hundreds of nanoseconds. It is far lower than the data processing delay of the microsecond level or even the millisecond level caused by the processing of packets by the CPU and the like in the prior art.
  • the embodiments of the present invention achieve the following technical effects: the problem of poor communication performance between the base station devices and low link bandwidth caused by a large delay in the base station information interaction process in the related art, and the data is reduced.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they can be stored in the storage device Executed by the computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or they may be fabricated into individual integrated circuit modules, or multiple of them. Or the steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution provided by the embodiment of the present invention is applied to the data transmission process, and the source device first moves the data to be transmitted to the RapidIO packet through the interaction process between the source device and the destination device, and converts the RapidIO packet.
  • the transport network packet is sent to the destination device, and the destination device side: converts the received transport network packet into a RapidIO packet; and the RapidIO is according to the correspondence between the RapidIO address space and the memory in the destination device.
  • the message is moved to the specified storage location of the memory.

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  • Computer Networks & Wireless Communication (AREA)
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  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
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