WO2011124182A2

WO2011124182A2 - Detection method, device and system of transmission between controller and base station

Info

Publication number: WO2011124182A2
Application number: PCT/CN2011/074053
Authority: WO
Inventors: 熊绍成; 郭成绪; 董庆
Original assignee: 华为技术有限公司
Priority date: 2011-05-13
Filing date: 2011-05-13
Publication date: 2011-10-13
Also published as: CN102301765A; WO2011124182A3

Abstract

A detection method, device and system of the transmission between a controller and a base station are provided by the present invention. The method includes that the controller transmits a User Datagram Protocol (UDP) message to the base station via a pre-designated UDP port (11); the controller receives the UDP message returned by the base station after the base station detects the designated UDP port (12); the controller, according to the transmitted UDP message and the received UDP message, confirms the transmission status between the controller and the base station (13). The embodiments of the present invention enable to improve detection capability and reliability.

Description

Transmission detection method, device and system between controller and base station

Technical field

The present invention relates to wireless communication technologies, and in particular, to a method, device and system for detecting transmission between a controller and a base station. Background technique

Since the base station is at the end of the network and spreads widely, especially the technology used in the last mile is complicated, how to judge the intermediate transmission and disconnection and service when the controller and the base station use the Internet Protocol (IP) transmission. Quality of Service (QoS) is the key to ensuring wireless service.

The Internet Control Message Protocol (ICC) is an integral part of the IP layer and is used to deliver error messages and other information. ICMP packets are transmitted inside IP packets. For example, IP packets include IP headers and ICMP packets. The first four bytes of an ICMP message include a type field, a code field, and a checksum field.

The ping program is used to detect whether the host can communicate with the host. The ping program uses the ICMP request and the ICMP response to determine whether the channel is reachable. For example, after the source host sends an ICMP Request packet to the destination host, if the ICMP response returned by the destination host is received within a certain period of time, the host is considered reachable, otherwise it is unreachable. However, the ping packet may be discarded by the transmission device or the wireless device as a ping attack. As a result, the ping packet is not high in some networks. Some communication devices perform traffic control on ping packets, and choose to enter proportionally for ping packets exceeding a certain traffic, which leads to system abnormality; and the wireless service channel is User Datagram Protocol (UDP) bearer, due to ping The packet is essentially an ICMP packet. The detection of ICMP packets does not reflect the transmission of UDP packets. Summary of the invention The embodiment of the invention provides a method, a device and a system for detecting a transmission between a controller and a base station, thereby improving detection performance.

In one aspect, a method for detecting a transmission between a controller and a base station is provided, including:

The controller sends a UDP packet to the base station through a pre-designated user data packet protocol UDP port; the controller receives the UDP packet returned by the base station after detecting the specified UDP port; and the controller sends the UDP packet according to the The received UDP packet determines the transmission status between the controller and the base station.

In another aspect, a transmission detection device between a controller and a base station is provided, including:

a sending module, configured to send, by using a pre-designated user data packet protocol UDP port, a UDP packet to the base station;

a receiving module, configured to receive, by the base station, a UDP packet returned after detecting the specified UDP port;

The detecting module is configured to determine, according to the UDP packet sent by the sending module and the UDP packet received by the receiving module, a transmission status between the controller and the base station.

In another aspect, a method for detecting a transmission between a controller and a base station is provided, including:

Receiving, by the base station, a UDP packet sent by the controller by using a UDP port of the user data packet; the base station, after detecting that the UDP port is a pre-designated UDP port, returning a UDP packet to the controller, so that the controller The transmission status between the controller and the base station is determined according to the sent UDP packet and the received UDP packet.

a receiving module, configured to receive, by using a user data packet protocol, a UDP port, a UDP packet sent by the controller;

a sending module, configured to: after detecting that the UDP port that the UDP packet received by the receiving module passes is a pre-designated UDP port, return a UDP packet to the controller, so that the controller is configured according to the sent UDP The packet and the received UDP packet determine the transmission status between the controller and the base station.

In another aspect, a transmission detection system between a controller and a base station is provided, including: Equipment.

According to the foregoing technical solution, the embodiment of the present invention can transmit the UDP packet of the specified UDP port between the controller and the base station, and detect the transmission status by using the UDP "3⁄4 text", thereby avoiding the problem caused by using the ICMP, and improving the detection. Performance and reliability.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief description of the drawings to be used in the description of the embodiments will be briefly made. It is obvious that the drawings in the following description are some embodiments of the present invention. It will be apparent to those skilled in the art that other drawings may be obtained from these drawings without the inventive labor.

1 is a schematic flow chart of a method according to a first embodiment of the present invention;

2 is a schematic flow chart of a method according to a second embodiment of the present invention;

3 is a schematic structural view of a second embodiment of the present invention;

4 is a schematic structural diagram of a device according to a third embodiment of the present invention;

FIG. 5 is a schematic flowchart of a method according to a fourth embodiment of the present invention; FIG.

6 is a schematic structural diagram of a device according to a fifth embodiment of the present invention;

Fig. 7 is a schematic structural view of a system according to a sixth embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a schematic flowchart of a method according to a first embodiment of the present invention, and provides a method for detecting a transmission between a controller and a base station, including: Step 11: The controller sends a UDP packet to the base station through a pre-designated UDP port.

The controller may be, for example, a Base Station Controller (BSC), and the base station is a Base Transceiver Station (BTS); or the controller is a Radio Network Controller (RNC). The base station is a NodeB.

The specified UDP port can be customized. For example, set the UDP port with port number 65042 as the designated port.

In addition, UDP packet size, priority, and packet interval can be configured to maximize the path and parameters of the actual service.

Step 12: The controller receives the UDP packet returned by the base station after detecting the specified UDP port.

After receiving the UDP packet, the base station can return a UDP packet to the controller if it detects that the port number corresponding to the received UDP packet is a specified UDP port number (for example, 65042).

Further, the received UDP packet is returned to the controller as it is by exchanging the source IP address and the destination IP address in the packet, that is, the source IP address and the destination IP address are exchanged in the received packet. In addition, no changes are made to the rest of the message.

Step 13: The controller determines the transmission status between the controller and the base station according to the sent UDP packet and the received UDP packet.

For example, if the controller does not receive the UDP packet corresponding to the specified UDP port within a certain period of time, it determines that the channel between the controller and the base station is unreachable, or, within a certain period of time, if the UDP corresponding to the specified UDP port is received. The message determines that the channel between the controller and the base station is reachable. Moreover, the QoS quality can be determined according to the parameters in the sent UDP packet and the received UDP packet. For details, see the following embodiments.

In this embodiment, the UDP packet of the specified UDP port is transmitted between the controller and the base station, and the transmission status of the UDP packet is detected, which can avoid the problem caused by the ICMP packet, and can improve the detection performance and reliability.

2 is a schematic flow chart of a method according to a second embodiment of the present invention, and FIG. 3 is a second embodiment of the present invention. A corresponding structure diagram, as shown in FIG. 2, a method for detecting a transmission between a controller and a base station, includes: Step 21: The controller sends a UDP packet to the base station by using a designated UDP port, where the UDP packet can include the sequence number of the packet. And system timestamp.

Specifically, for example, the format of the UDP packet can be specifically as follows:

Typedef struct UDP— PING— PKG

/* IP header 20 bytes */

UINT8 ucIpVer:4; /* version */

UINT8 ucIpHdrLen:4; /* header length */

UINT8 ucServiceType; /* type of service */

UINT16 usTotalLen; /* total length */

UINT16 usldentification; /* identification */

UINT16 usOffset; /* fragment offset field */

UINT8 ucTTL; /* time to live*/

UINT8 ucProtocol; /* protocol */

UINT16 usCheckSum; /* checksum */

UINT32 ulSrcAddr;

UINT32 ulDestAddr; /* source and dest address *

/* UDP header 8 bytes */

UINT16 usUDPSourcePort;

UINT16 usUDPDestPort;

UINT16 usUDPLen;

UINT 16 usUDPCheckSum;

/* UDP ping payload */

UINT 16 usChecklndex; /* Index of the local check table */

UINT 16 usPathlndex; /* Corresponding base station DSCP index */

UINT32 ulSpuCpuId; /* Corresponding control Cpuld*/

UINT32 ulCurrTimeStamp; /* current timestamp */ UINT16 usSequenceNum; /* 艮序列 serial number * /

UINT8 aucPad[2]; /* Fill in the content for later use */

}UDP_PING_PKG_STRU;

The size and sending interval of the above UDP file can be configured as follows: Detection period: Default value 5s, range configurable l~60s

Detection packet length: The default value is 64 bytes, the range is configurable, generally between 46-1500 bytes. The above "usUDPSourcePort" and "usUDPDestPort" can be set to the specified UDP port number, for example, 65042.

The above "usSequenceNum" can be used to record the serial number of the document, and "ulCurrTimeStamp" is used to record the system timestamp.

Step 22: After detecting the UDP packet from the specified UDP port, the base station returns the UDP packet to the controller.

For example, after receiving the UDP packet from the port with the port number of 65042, the base station exchanges the source address and the destination address in the UDP packet, and then the UDP packet is intact through the port with the port number of 65042. Return to the controller.

Step 23: The controller compares the UDP packet sent by the specified UDP port with the received UDP packet to determine the transmission status.

For example, if the controller does not receive the UDP packet returned by the base station through the designated port within a certain period of time, it is determined that the channel between the controller and the base station is unreachable.

If the controller receives the UDP packet returned by the base station through the designated port, the QoS parameter may be calculated. For example, the specific information may be as follows:

When the controller sends a UDP packet through the designated port, it records the transmission time T1. After receiving the UDP packet returned by the base station, the controller determines the reception time T2, and then calculates the time RTT=T2-T1. The delay jitter can be calculated according to the delay value corresponding to different UDP packets.

The controller can also record the sequence number of the packet when the packet is sent. If the controller receives the packet returned by the base station, if the sequence number is not continuous, the UDP packet is discontinued. After that, you can obtain the number of UDP packets lost in a unit of time and get the number of lost packets. The number of lost packets divided by the number of UDP packets sent per unit time is the packet loss rate.

4 is a schematic structural diagram of a device according to a third embodiment of the present invention, and provides a transmission detection device between a controller and a base station, including a sending module 41, a receiving module 42 and a detecting module 43. The sending module 41 is configured to pass a pre-designated UDP. The port sends a UDP packet to the base station; the receiving module 42 is configured to receive the UDP packet returned by the base station after detecting the specified UDP port, and the detecting module 43 is configured to use the UDP packet sent by the sending module 41. The UDP packet received by the receiving module 42 determines the transmission status between the controller and the base station.

The receiving module 42 may be specifically configured to receive, by the base station, the UDP packet returned by the base station to the controller by using the exchange source IP address and the destination IP address after detecting the specified UDP port.

The detecting module 43 may be specifically configured to: if the receiving module does not receive the UDP packet corresponding to the designated port within a certain period of time, determine that the channel between the controller and the base station is unreachable, or, at a certain time If the UDP address corresponding to the specific port is received, it is determined that the channel between the controller and the base station is reachable.

The sending UDP packet includes a sequence number and a timestamp of the packet, and the detecting module 43 is specifically configured to: according to the sequence number and timestamp of the packet sent by the sending module and received by the receiving module , determine the quality of service QoS parameters.

The detecting module 43 may be specifically configured to: determine a delay according to a sending time when the sending module sends a UDP packet, and a receiving time when the receiving module receives the UDP packet; or, according to the sending The packet sequence number of the UDP packet sent by the module and the packet sequence number of the UDP packet received by the receiving module determine the packet loss rate.

The device can be located inside the controller.

The specific process for implementing detection by using the detection device provided by the embodiment of the present invention and the implementation of the foregoing method The example is similar and will not be described here.

The detecting device provided by the embodiment can transmit the UDP file of the specified UDP port through the controller and the base station, and detect the transmission status through the UDP file, thereby avoiding the problem caused by using the ICMP, and improving the detection performance. And reliability.

FIG. 5 is a schematic flowchart of a method according to a fourth embodiment of the present invention, and a method for detecting a transmission between a controller and a base station, including:

Step 51: The base station receives the UDP packet sent by the controller through the UDP port.

Step 52: After detecting that the UDP port is a pre-designated UDP port, the base station returns a UDP packet to the controller, so that the controller determines, according to the sent UDP packet and the received UDP packet. The transmission status between the controller and the base station.

For example, after detecting that the UDP port is a pre-designated UDP port, the base station may return the received UDP message to the controller by exchanging the source Internet IP address and the destination IP address in the received message.

In this embodiment, the UDP packet of the specified UDP port is transmitted between the base station and the UDP packet, and the UDP packet is used to detect the transmission status, which can avoid the problem caused by the ICMP packet, and improve detection performance and reliability.

FIG. 6 is a schematic structural diagram of a device according to a fifth embodiment of the present invention, a transmission detection device between a controller and a base station, including a receiving module 61 and a sending module 62; and a receiving module 61 for receiving a controller through a user data packet protocol UDP port The UDP packet sent by the sending module 62 is configured to: after detecting that the UDP port that the UDP packet received by the receiving module 61 passes is a pre-designated UDP port, return a UDP packet to the controller, so that the UDP packet is sent to the controller. The controller determines the transmission status between the controller and the base station according to the sent UDP packet and the received UDP packet.

The sending module 62 may be specifically configured to: after detecting that the UDP port is a pre-designated UDP port, returning to the controller through the exchange of the source Internet IP address and the destination IP address in the received message. UDP packet.

The device of this embodiment may be located in a base station. The specific process for implementing the detection by the detecting device provided by the embodiment of the present invention is similar to the foregoing method embodiment, and details are not described herein again.

The detection device provided in this embodiment can detect the transmission status of the UDP packet by transmitting the UDP packet of the designated port with the controller, and can avoid the problem caused by the ICMP packet, which can improve the detection performance and reliability.

FIG. 7 is a schematic structural diagram of a system according to a sixth embodiment of the present invention, and a transmission detection system between a controller and a base station, including a controller 71 and a base station 72; wherein the controller 71 can participate in the embodiment corresponding to FIG. The base station 72 can refer to the corresponding embodiment in FIG. 6, and details are not described herein again.

The detection system provided by the embodiment can transmit the UDP packet of the designated port between the controller and the base station, and detect the transmission status of the UDP packet, which can avoid the problem caused by the ICMP packet, and can improve the detection performance and reliability.

It can be understood that related features in the above methods and devices can be referred to each other. In addition, "first", "second", and the like in the above embodiments are used to distinguish the embodiments, and do not represent the advantages and disadvantages of the embodiments.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

A method for detecting a transmission between a controller and a base station, comprising:

The method according to claim 1, wherein the controller receives the UDP packet returned by the base station after detecting the specified UDP port, and includes:

The controller receives the UDP packet returned by the base station to the controller by exchanging the source Internet IP address and the destination IP address after detecting the specified UDP port.

The method according to claim 1 or 2, wherein the controller determines the transmission status between the controller and the base station according to the sent UDP message and the received UDP message, including: if at a certain time If the controller does not receive the UDP packet corresponding to the designated port, it is determined that the channel between the controller and the base station is unreachable, or the UDP packet corresponding to the specified port is received within a certain period of time. Then, it is determined that the channel between the controller and the base station is reachable.

The method according to claim 2, wherein the sent UDP packet includes a sequence number and a timestamp of the packet, and the determining a transmission status between the controller and the base station includes: The sequence number and timestamp of the received message determine the quality of service QoS parameters.

The method according to claim 4, wherein the determining the QoS parameter according to the sequence number and the timestamp of the sent and received message includes:

Determining the delay according to the sending time when the UDP packet is sent and the receiving time when the UDP packet is received;

Or,

The packet loss rate is determined according to the sequence number of the sent UDP packet and the sequence number of the received UDP packet.

6. A transmission detection device between a controller and a base station, comprising: a sending module, configured to send a UDP packet to the base station by using a pre-designated user data packet protocol UDP port;

The device according to claim 6, wherein the receiving module is configured to receive, by the base station, the switching source IP address and the destination IP address to the control after detecting the specified UDP port. UDP packet returned by the device.

The device according to claim 6 or 7, wherein the detecting module is specifically used for:

If the receiving module does not receive the UDP packet corresponding to the designated port within a certain period of time, it is determined that the channel between the controller and the base station is unreachable, or, within a certain period of time, if the UDP corresponding to the specific port is received, The message determines that the channel between the controller and the base station is reachable.

The device according to claim 6, wherein the sent UDP packet includes a sequence number and a timestamp of the packet, and the detecting module is specifically configured to: according to the sum sent by the sending module The sequence number and timestamp of the packet received by the receiving module are determined, and the quality of service QoS parameter is determined.

The device according to claim 9, wherein the detecting module is specifically configured to: according to a sending time when the sending module sends a UDP packet, and when the receiving module receives the UDP packet Receiving time, determining the delay;

Or,

The packet loss rate is determined according to the packet sequence number of the UDP packet sent by the sending module and the packet sequence number of the UDP packet received by the receiving module.

Receiving, by the base station, the UDP packet sent by the controller by using a UDP port of the user data packet; the base station, after detecting that the UDP port is a pre-designated UDP port, The controller returns a UDP packet, so that the controller determines the transmission status between the controller and the base station according to the sent UDP packet and the received UDP packet.

The method according to claim 11, wherein the returning the UDP message to the controller comprises:

The UDP packet is returned to the controller by exchanging the source Internet IP address and the destination IP address.

13. A transmission detection device between a controller and a base station, comprising:

The device according to claim 13, wherein the sending module is specifically configured to: after detecting that the UDP port is a pre-designated UDP port, exchange the source Internet IP address and the destination IP address to the The controller returns a UDP packet.

15. A transmission detection system between a controller and a base station, comprising:

A device according to any one of claims 6 to 10, and

Apparatus according to any of claims 13-14.