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Message transmission method and device

A transmission method and technology of a transmission device, which are applied in the information field, can solve the problems that the response message of the clock server cannot be transmitted, and the clock synchronization between the client and the clock server cannot be realized, and the effect of realizing the clock synchronization can be achieved.

Active Publication Date: 2014-07-09
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the response message is sent through the corresponding source IP and source port number of the client in the client request list. When the client needs to communicate with the clock server through a NAT (Network Address Translation) device, and the NAT When the IP or port number of the device changes due to reasons such as the lease period, the clock server still sends a response message according to the source IP and source port number corresponding to the client in the client request list, which causes the response message sent by the clock server to fail to be transmitted. to the client, resulting in the inability to achieve clock synchronization between the client and the clock server

Method used

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Examples

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Embodiment 1

[0032] An embodiment of the present invention provides a message transmission method, such as figure 1 As shown, the method includes:

[0033] 101. The client performs clock synchronization according to the received response message.

[0034] Wherein, the response message carries the source IP, the source port number, the destination IP and the destination port number, and the like. In the embodiment of the present invention, the client is a client that needs to perform frequency synchronization or / and time synchronization. For example, the client may be a macro station client, a Small Cell (femto cell) client, and the like.

[0035] For the embodiment of the present invention, the client can synchronize the clock between the client and the clock server by sending a request message to the clock server and receiving a response message sent by the clock server. In this embodiment of the present invention, the request message sent by the client and the response message sent by ...

Embodiment 2

[0048] An embodiment of the present invention provides a message transmission method, such as image 3 As shown, the method includes:

[0049] 301. The client sends the request packet to the clock server.

[0050] Wherein, the request message carries a source IP, a source port number, a destination IP, a destination port number, and the like. In the embodiment of the present invention, the client is a client that needs to perform frequency synchronization and / or time synchronization. For example, the client may be a macro station client, a Small Cell client, and the like.

[0051] Specifically, step 301 may be that the client sends the request message to the clock server according to the preset port number. In the embodiment of the present invention, the preset port number is a port number specified in the protocol, and the preset port number may be 319 or 320 or the like.

[0052] For the embodiment of the present invention, when the request message sent by the client pass...

Embodiment 3

[0081] An embodiment of the present invention provides a message transmission method, such as Figure 5 As shown, the method includes:

[0082] 501. The clock server receives the heartbeat packet sent by the client.

[0083] Wherein, the heartbeat message carries the protocol IP and the source port number of the interconnection between the active networks. In the embodiment of the present invention, the client may send the heartbeat message according to a preset period, and the preset period may be pre-configured or pre-configured by the clock server, which is not limited in the embodiment of the present invention. For example, the preset period may be 2 milliseconds, 3 milliseconds, or 5 milliseconds.

[0084] For the embodiment of the present invention, the client is a client that needs to perform frequency synchronization or / and time synchronization. For example, the client may be a macro station client, a Small Cell client, and the like.

[0085] For the embodiment of t...

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PUM

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Abstract

The embodiment of the invention discloses a message transmission method and device, and relates to the field of the information technology. The message transmission method and device can achieve clock synchronization between a client side and a clock server. The message transmission method comprises the steps that a client side carries out clock synchronization according to a received answer message and sends a heartbeat message to the clock server according to a preset cycle, and then the clock server receives the heartbeat message sent by the client side and updates a client side request list according to a source IP and a source port number carried in the heartbeat message. The message transmission method and device are used for carrying out clock synchronization between the client side and the clock server.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a message transmission method and device. Background technique [0002] In mobile communication networks, the precision of clock synchronization is highly required. Specifically, the clock synchronization is realized through the precision clock synchronization protocol standard of the network measurement and control system. Wherein, the protocol implements an ACR (Adaptive Clock Recovery, adaptive clock recovery) technology by transmitting packets. [0003] Currently, clock synchronization between the client and the clock server is achieved by transmitting packets between the client and the clock server. Specifically, after receiving the request message sent by the client, the clock server first establishes the identity of the client, the source IP (Internet Protocol, a protocol for interconnection between networks) and the source IP of the request message in the client re...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L7/00
Inventor 罗良桂周进青方绍湖黄锦华
Owner COMBA TELECOM SYST CHINA LTD