Method for adjusting time parameter dynamically during message-handling process

Abstract

The invention relates to a method for adjusting time parameter dynamically during a message-handling process. The method comprises the steps as follows: transaction-resending frequency is collocated at a control party; a controlled party sends a current time index to the control party; the control party calculates transaction-resending time and transaction overtime time according to the difference value of current time T2 when T1 is received and T1 and sends the transaction-resending time and the transaction-resending frequency to the controlled party together, wherein, uniform reference time is adopted for T1 and T2; after receiving, the controlled party calculates the transaction overtime time; when the control party wants to adjust the time parameter again, the control party sends a non-call related message to the controlled party and records current time T3; the controlled party replies a response to the control party; after receiving, the control party calculates the transaction-resending time and the transaction overtime time according to the difference value of the current time T4 and T3 and sends the transaction-resending time together with the transaction-resending frequency to the controlled party; and after receiving, the controlled party calculates the transaction overtime time.

Description

technical field [0001] The invention relates to a method for realizing self-adaptation of a message processing network in the field of communication, in particular to a method for dynamically adjusting time parameters during message processing in the field of communication. Background technique [0002] In the H.248 protocol formulated by the International Organization for Standardization ITU-T, in view of the possibility of message loss, the message retransmission mechanism of the message sender and the "at most once" processing mechanism of the message receiver are stipulated. In order to realize message retransmission and "at most one time" function, two main time parameters need to be involved: one is the transaction retransmission time, which is recorded as RESEND-TIMER; and the number of retransmissions is counted as RESEND-NUM, which can be manually to configure. After the sender of the request message sends the request message, if the request message is not received...

AI Technical Summary

Problems solved by technology

[0018] In the above method 1, because the time value is immutable, if the value is too small, once the network load increases or the network environment deteriorates and the network delay increases, the message will be retransmitted or timed out, which will affect calls, etc. Business; if the value is too large, the efficiency of transmission or the timeliness of status monitoring will be reduced during the process of resending messages or heartbeat detection

[0019] In the above method 2, the time value can be artificially configured according to the network environment, but once configured, the nature will become the same as method 1, and it is difficult for users to grasp what value should be configured for the current network conditions

[0020] Therefore, in the implementation process of the existing message resending and "at most once" functions, no matter which of the above methods is adopted, the transmission efficiency cannot be considered at the same time Due to real-time performance, the values ​​of RESEND-TIMER and LONG-TIMER cannot be adaptively adjusted according to actual network conditions

Moreover, the time parameter values ​​of the sending and receiving parties are independent, and there is no guarantee that the message receiver will not receive the same request message after releasing the response message

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