WO2006012787A1 - Procede de simulation de donnees de terminal et procede de simulation de source de donnees de terminal mobile - Google Patents

Procede de simulation de donnees de terminal et procede de simulation de source de donnees de terminal mobile Download PDF

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Publication number
WO2006012787A1
WO2006012787A1 PCT/CN2005/001079 CN2005001079W WO2006012787A1 WO 2006012787 A1 WO2006012787 A1 WO 2006012787A1 CN 2005001079 W CN2005001079 W CN 2005001079W WO 2006012787 A1 WO2006012787 A1 WO 2006012787A1
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WIPO (PCT)
Prior art keywords
data
ethernet
packet
mobile communication
communication system
Prior art date
Application number
PCT/CN2005/001079
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English (en)
Chinese (zh)
Inventor
Jianfeng Wang
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Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2006012787A1 publication Critical patent/WO2006012787A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network

Definitions

  • the present invention relates to the technical field of performing related performance testing on a mobile communication system based on the Internet Protocol (IP) technology, and particularly relates to a simulation method for testing terminal data or a data source.
  • IP Internet Protocol
  • WCDMA Wideband Code Dimensional Access
  • the internal LAN of the enterprise generally uses an IP-based network. If two computers need to communicate in such a LAN, the message sender only needs to encapsulate the message into an IP packet, and then encapsulate the packet into an Ethernet packet, and then Ethernet packets are placed on the LAN and Ethernet packets are automatically routed to the destination computer.
  • UE User Equipment
  • WCDMA Wireless Fidelity
  • a large number of real data packets are provided on the wireless link to test the access capability of the mobile communication system, the stability of the service, and the handover performance of the UE and the transmission capability of the data link.
  • the prior art generally uses a file transfer protocol (Fi le Transfer Protocol)
  • FTP "FTP" class tool to simulate the data source of the UE.
  • each computer can only provide data to one UE through an FTP class tool.
  • the UE is connected to a local area network by wire or wirelessly, and each UE provides an uplink data source for communicating with the network side through a computer in the local area network, and then the network side is generated by the uplink data source.
  • Corresponding downlink data so that a sufficient amount of data can be obtained on the wireless link between the UE and the network side to achieve the purpose of testing the access and handover performance of the mobile communication system.
  • the prior art uses some software such as netwizard or sniffer that implements packet capture and real-time monitoring, and uses some cumbersome techniques to make a computer provide data sources for testing for multiple UEs, and still needs to be in this platform. Open multiple applications such as netwizard or sniffer on the computer, so that computer resources will consume a lot of money, so high requirements are put forward for objective test.
  • the above-mentioned test requirements for access to the mobile communication system, handover performance, service transmission capability, and the like can be implemented by some dedicated hardware devices.
  • the above solutions have the following problems: First, in addition to using high-cost dedicated hardware devices to complete testing in the prior art, all other existing solutions will consume more computer resources, and at the same time The objective conditions of the laboratory space put forward more requirements. More importantly, it is difficult to provide data for multiple UEs at the same time. In addition, in the prior art, multiple applications are required to implement terminal data simulation, which is relatively complicated to implement; Some software used in the prior art to implement packet capture and real-time monitoring, such as netwizard or sniffer, cannot be applied to asymmetric services with large uplink data bandwidth and small downlink data bandwidth, which limits the actual test range of the system.
  • the main object of the present invention is to provide a simple terminal data simulation method and a data source simulation method for a mobile terminal, so that a computer can simulate multiple network devices and greatly reduce the test of the mobile communication system.
  • the number of computers that the UE cooperates with to generate test data is to provide a simple terminal data simulation method and a data source simulation method for a mobile terminal, so that a computer can simulate multiple network devices and greatly reduce the test of the mobile communication system.
  • the present invention provides a method for simulating a terminal data, including: A: generating, on a first device, a data block including at least one data packet, where the data packet is a data packet that can be identified by the storage and forwarding device;
  • the storage and forwarding device is an Ethernet device, and the data packet is an Ethernet data packet.
  • the source network interconnection protocol address of the Ethernet packet in the data block is an internetwork interconnection protocol address of the device that is to be simulated, and
  • the source media access control address of the Ethernet packet in the data block is a valid media access control address in the local area network where the first device is located.
  • the device that is desired to be simulated may be a virtual device.
  • the device to be simulated may be any one of a mobile terminal, a computer, and a personal digital assistant in the mobile communication system.
  • the Ethernet device is any one of a router, a hub, and an Ethernet switch.
  • the present invention also provides a data source simulation method for a mobile terminal in a mobile communication system, comprising: D. generating a data file including a plurality of Ethernet data packets on a computer connected to the Ethernet device;
  • the Ethernet device sends the Ethernet packet in the buffer area to the network side of the mobile communication system through a plurality of mobile terminals connected thereto.
  • the destination media access control address of each Ethernet data packet in the data file is a media access control address of the mobile terminal
  • the destination internetwork protocol address of each Ethernet data packet in the data file is the internetwork protocol address of the network side computer of the mobile communication system, and the source network interconnection protocol address of the Ethernet data packet may be different.
  • the Ethernet device is any one of a router, a hub, and a switch.
  • the data of the internetwork protocol packet included in the Ethernet packet is an Internet Control Message Protocol message, and the Internet Control Message Protocol packet of type code 0x0800.
  • the data of the internetwork protocol packet included in the Ethernet packet is an Internet Control Message Protocol message, and the Internet Control Message Protocol packet whose type code value is 0x0000.
  • the data check field of the internetwork protocol packet in the Ethernet packet is filled in as an error value.
  • the technical solution of the present invention is different from the prior art in that the present invention simulates an Ethernet packet of a plurality of network devices by setting an IP and a MAC address on a computer. Organizing these Ethernet packets into part or all of a possible snapshot of the cache of the Ethernet device with the packet store-and-forward function, and then loading the simulated data into the cache of the Ethernet device, and transmitting the data packets through the Ethernet device .
  • the data source simulation of the UE can be done with a much smaller number of computers.
  • the difference in the technical solution brings about a more obvious beneficial effect, that is, on the one hand, the data source can be simulated for multiple UEs simultaneously by only the computer and the Ethernet device, which saves the device resources compared with the prior art. , reducing the test environment space.
  • the solution of the present invention reduces the repetitive operation, effectively filling the wireless links of multiple UEs and the network side with data by one or a few computers and one Ethernet device, compared with the existing In terms of technology, it is more conducive to automating test of mobile communication systems.
  • the inventive solution can be used in practical applications for system performance testing of communication terminal data sources in a mobile communication system.
  • FIG. 1 is a schematic structural diagram of a data source simulation method of a communication terminal according to an embodiment of the present invention
  • FIG. 1 is a diagram showing a data format of a data block pre-generated in a computer according to an embodiment of the present invention
  • Fig. 3 is a flow chart showing the simulation of a mobile communication terminal data source in a mobile communication system according to an embodiment of the present invention.
  • a store-and-forward device In a typical network, there are a store-and-forward device, a terminal device, and a network processing device (a core device, such as a server).
  • the storage area and the forwarding area of the storage and forwarding device generally also share an area.
  • the storage and forwarding device functions as a cache device, and the data packets sent by the terminal device to the destination device are temporarily stored and forwarded to the corresponding destination device in time. Therefore, to simulate enough data sent by the terminal, as long as enough data packets are sent and loaded into the store-and-forward buffer and forwarding buffer of the store-and-forward device in the name of the terminal, it can be simulated.
  • the data sent by the terminal to simulate enough data sent by the terminal.
  • the present invention only needs to generate a data block including one or more data packets on one device of the network, the size of the data block, that is, the number of data packets from the required number Depending on the number of packets, as long as the store-and-forward device can identify the data packet, the data block containing the data packet can be loaded into the store-and-forward buffer area of the store-and-forward device. .
  • the solution of the present invention is to pre-frame the data frame format in the buffer area according to the data packet storage and forwarding capability of the Ethernet storage and forwarding device in a device such as a computer, that is, to construct the Ethernet storage and forwarding.
  • the data packet that the device can identify, and the pre-composed data frame is loaded into the buffer area of the Ethernet storage and forwarding device by the computer device and forwarded, so that the wireless link on the UE and the test network side is filled with data,
  • the purpose of testing the performance of a communication system in a mobile communication system is a mobile communication system.
  • the present invention is effective for performing data simulation on a terminal at any network level.
  • the solution of the present invention is directed to a specific Ethernet device having a store-and-forward function, according to its chain.
  • the data frame format in the path buffer area pre-generates a data block containing a plurality of Ethernet data packets in the computer, and the source IP address of each Ethernet data packet in the data block is according to the IP address of the computer that is desired to be simulated.
  • the destination IP address is the IP of the core network (Core Net, referred to as "CN") on the network side
  • the destination MAC address of each Ethernet packet in the Ethernet packet data block is the MAC of the UE that the packet wants to serve.
  • the address is then placed in the buffer of the Ethernet device and forwarded out.
  • the Ethernet device sends these Ethernet packets to its destination MAC address, and the UE sends the destination IP address of these Ethernet packets along the uplink wireless link to the computer on the CN side.
  • the CN side computer will feedback.
  • the Ethernet packet is sent to the UE along the downlink radio link, and the UE forwards it to the corresponding computer (the computer indicated by the source IP address of the upstream Ethernet packet).
  • the radio link between the UE and the network side can be filled with data, thereby achieving the purpose of testing the access capability and handover performance of the mobile communication system and the ability to transmit service data to the mobile communication system.
  • the UE actually functions as a gateway.
  • Fig. 1 is a block diagram showing the structure of a data source emulation method of a communication terminal according to an embodiment of the present invention.
  • the present invention provides a data source for the UE 30 via a computer 10 and a local area network 20 and an Ethernet device 21 therein.
  • the Ethernet device 21 is used in the local area network 20.
  • Any one of a router, a hub, and a switch that implements a switching function, and the UE 30 is a mobile terminal in a mobile communication system or any of a computer, a personal digital assistant ("PDA").
  • PDA personal digital assistant
  • a communication terminal data simulation method of an embodiment of the present invention will be described in detail below with reference to FIG.
  • a data block including at least one Ethernet packet is generated in the computer 10 according to the Ethernet packet format in the buffer area, and the data block is a cache of the Ethernet device.
  • the source IP address of the Ethernet packet in the data block may be the IP address of the device to be simulated, and the destination address is the IP of the destination device (if the packet passes the UE to the computer on the CN side) Then, the destination IP is a computer on the CN side, and the destination Medium Access Control (MAC) address should be set to the MAC address of the UE 30, and the source MAC address is a valid MAC address in the local area network where the computer 10 is located.
  • the valid MAC address referred to herein may be the MAC address of the computer 10 or the MAC address of other working network devices (including network terminals) in the local area network where the computer 10 is located.
  • the data block pre-generated in the Ethernet packet format in the buffer area of the Ethernet device 21 in the computer 10 is a cap file of the format cap, as shown in FIG. 2.
  • Figure 2 illustrates the data format of a data block pre-generated in a computer in accordance with one embodiment of the present invention. As shown in (1) of Fig. 2, the data blocks generated in the computer 10 are combined by at least one Ethernet packet. Each Ethernet packet contains the destination address to which the packet needs to be sent, the source address, and the type of the Ethernet packet and the IP packet portion.
  • the data format is as shown in Figure 1.
  • the data portion of each Ethernet packet is a complete and correct IP packet.
  • the IP header in the IP packet contains the source IP address and the destination IP address.
  • the source IP address in the IP packet refers to the IP address of the sender that wants to simulate the sending of the data packet. The sender may actually exist or It is virtual.
  • the destination IP address in the IP packet is the IP address of the destination network device to which the packet is to be sent.
  • the terminal data source in the communication system is to be simulated, a plurality of Ethernet packets pre-generated in the computer 10 need to be provided to the UE 30 as the data source of the UE 30. Therefore, the destination MAC address is set to the IP address of the UE 30 in the pre-generated Ethernet packets, so that these Ethernet packets can be transmitted to the UE 30. Also, the source IP address of the Ethernet packet in the data block should be set to the IP address of the device that you want to simulate, in order to achieve the purpose of the simulation. It is important to note that the MAC address of the Ethernet packet pre-generated in the computer 10 needs to be set to the valid MAC address in the local area network where the computer 10 is located, because it is necessary to ensure that these Ethernet packets are loaded into the subsequent steps. The buffering of the Ethernet device 21 in the local area network 20 does not cause an abnormality and an error.
  • the computer 10 loads the generated data block containing at least one Ethernet packet into the link layer buffer of the Ethernet device 21.
  • the process of loading the data block of the cap file format into the link layer buffer of the Ethernet device 21 can be implemented by off-the-shelf software such as netwizard or sniffer. It is important to note that the loading mentioned here places the data block directly into the link layer buffer area of the Ethernet device 21, instead of being conventionally packaged by the multi-layer protocol and sent to the Ethernet device 21.
  • the Ethernet device 21 forwards each Ethernet packet in the data block in its buffer area through the UE 30 that is wired or wirelessly connected thereto.
  • the network structure of the data source simulation method of the communication terminal related to the present invention and the data format of the data block generated in advance in the computer in the present invention are described above, and the data source simulation method of the communication terminal of the present invention is in the mobile communication system.
  • the data source simulation method of the communication terminal of the present invention is in the mobile communication system.
  • a data file containing a plurality of Ethernet packets is generated in one computer according to the Ethernet packet format in the buffer area, and the data file is also The data format of the cap file shown in Figure 2 is identical.
  • the computer for generating a data file in the application example of the data source simulation of the mobile communication terminal in the mobile communication system refers to the computer 10 mentioned above.
  • Number According to the source IP address of the Ethernet packet in the file it may be the IP address of the computer that you want to simulate, and the source IP address of the Ethernet packet may be different.
  • Its destination MAC address is set to the MAC address of one of the multiple UEs.
  • the source MAC address is the MAC address of this computer. What needs to be specially explained here is that the ICMP protocol data content filled in the data segment of the IP packet in the Ethernet packet, when the analog symmetric service data source needs to be simulated, the type code value included in the Ethernet packet should be set to 0x0800.
  • ICMP packet after the packet is uplinked along the wireless link to the destination mobile communication network side, the server on the network side will return a packet of the same size, and the response packet is sent back to the UE along the wireless link and then sent by the UE.
  • the upper local area network 20 is then received or dies due to exceeding its life cycle on the link. In this way, the wireless links of multiple UEs can be successfully filled with data packets.
  • the Ethernet packet should contain an ICMP packet with a type code value of 0x0000, or fill in the IP packet header check field in the Ethernet packet as an error value, so that the Ethernet packet arrives.
  • the server on the destination network side is thrown away.
  • each UE needs to be configured with one computer. In order to use multiple UEs for testing, multiple computers need to be configured.
  • a computer and an Ethernet device e.g., HUB
  • step 310 the contents of the data file are loaded into the link layer buffer of the Ethernet device 21 by this computer.
  • this loading process can be directly loaded via the existing software netwizard or sniffer without encapsulation of multi-layer protocols. Then, proceed to step 320.
  • the Ethernet device 21 then transmits the Ethernet packet in its buffer to the network side of the mobile communication system through a plurality of UEs connected thereto in a wired or wireless manner.
  • a plurality of Ethernets in the data file of the cap file format can be forwarded to the network side by a plurality of UEs in a file file format by a computer and the Ethernet device 21.
  • the solution of the present invention can be The forwarding of multiple Ethernet packets to the mobile communication network side can be achieved by one computer and one Ethernet device 21 in one operation. Then, proceed to step 330.
  • the network side performs the corresponding operation based on the type of the type code value in the received Ethernet packet. If the type code value in the Ethernet packet is an ICMP packet of 0x0800, then the corresponding server on the network side will return a packet of the same size, and the data packet of these responses After the wireless link is downlinked to the mobile terminal and then retransmitted to the local area network 20, the wireless link of multiple UEs can be filled with data packets through the above scheme; if the type code value of the Ethernet packet is 0x0000 The ICMP packet, or the content of the IP packet header check field in the Ethernet packet is found to be an error value, and the corresponding server on the network side will throw it away after receiving such an Ethernet packet.
  • multiple UEs and the wireless link on the network side can be filled with data packets, thereby achieving the purpose of testing the access capability, handover performance, and service transmission capability of the mobile communication system. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention a trait au contrôle de la performance par rapport à un système de communication mobile basé sur la technologie IP, décrit un procédé de simulation de données de terminal et un procédé de simulation de source de données de terminal, non seulement afin de permettre à un ordinateur d'assurer la simulation d'une pluralité de dispositifs de réseau, la nette réduction du nombre d'ordinateurs dans le contrôle du système de communication mobile et lors de la coopération d'équipement d'utilisateurs pour la production de données de contrôle. L'invention établit une adresse IP et de commande d'accès au support pour la simulation de paquets d'Ethernet de dispositifs multi-réseau, organise lesdits paquets Ethernet sous la forme d'une portion de l'ensemble d'un instantané possible de la mémoire tampon des dispositifs Ethernet par un transfert d'unités de stockage, et assure ensuite le chargement des données simulées dans la mémoire tampon des dispositifs Ethernet, et la transmission desdits paquets de données par les dispositifs Ethernet.
PCT/CN2005/001079 2004-07-31 2005-07-20 Procede de simulation de donnees de terminal et procede de simulation de source de donnees de terminal mobile WO2006012787A1 (fr)

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CNB200410054860XA CN100396019C (zh) 2004-07-31 2004-07-31 移动终端数据源模拟方法
CN200410054860.X 2004-07-31

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CN115426301A (zh) * 2022-08-24 2022-12-02 北京华耀科技有限公司 基于自生报文的设备检测方法、装置、设备和存储介质
EP4105231A1 (fr) 2011-05-05 2022-12-21 Merck Patent GmbH Séquences d'acides aminés dirigées contre il-17a, il-17f et/ou il17-a/f et polypeptides les comprenant

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CN102238080B (zh) * 2011-01-18 2015-04-22 郑浩 一种利用以太网以叠加方式承载ip电信网的方法
CN104469822A (zh) * 2014-11-26 2015-03-25 大唐移动通信设备有限公司 一种测试方法、基站及系统
US11476899B2 (en) * 2019-04-18 2022-10-18 Huawei Technologies Co., Ltd. Uplink multi-user equipment (UE) cooperative transmission

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CN115426301A (zh) * 2022-08-24 2022-12-02 北京华耀科技有限公司 基于自生报文的设备检测方法、装置、设备和存储介质
CN115426301B (zh) * 2022-08-24 2023-11-10 北京华耀科技有限公司 基于自生报文的设备检测方法、装置、设备和存储介质

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