Dynamic control method of channel coding gain

Abstract

The invention discloses a dynamic control method of channel coding gain. The method comprises the steps of setting multiple optional channel coding rates corresponding to various numbers of code channels occupied by a user in advance; setting an accelerating threshold and a deceleration threshold for each optional channel coding rate under the corresponding code channel number; monitoring a target SIR (Signal Interference Ratio) of the user while the channel coding gain control is carried out; if the target SIR of the access user is always lower than the accelerating threshold of the current channel coding rate within a certain time, keeping the number of the occupied code channels invariable and increasing the channel coding rate so as to reduce the coding gain, increase the code resource utilization rate and provide a larger user bandwidth as much as possible under the precondition of assuring that the access user number is invariable; and if the target SIR of the access user is always higher than the decelerating threshold of the current channel coding rate within a certain time, keeping the number of the occupied code channels invariable and reducing the channel coding rate so as to assure the receiving performance of the user data.

Description

technical field [0001] The invention relates to data communication technology, in particular to a dynamic control method of channel coding gain. Background technique [0002] With the development of communication technology, data services are used more and more widely. In a networking scheme of the current TD-SCDMA system, the uplink and downlink time slot ratio is 2:4. In each subframe, only two uplink time slots are reserved, and the uplink data is carried on the DCH. Therefore, the uplink Total bandwidth is very limited. At the same time, because the data of multiple users shares the DCH channel, the total uplink bandwidth directly affects the number of access users and the experience of each user. [0003] In the case of limited total bandwidth, if we consider improving user experience and increasing the bandwidth allocated to each user, the number of access users will inevitably be reduced; if we consider increasing the actual number of access users, the bandwidth all...

AI Technical Summary

Problems solved by technology

[0003] In the case of limited total bandwidth, if we consider improving user experience and increasing the bandwidth allocated to each user, the number of access users will inevitably be reduced; if we consider increasing the actual number of access users, the bandwidth allocated to each user Inevitably limited, will reduce user experience

It can be seen that when the total bandwidth is limited, there is a certain contradiction between user experience and the actual number of access users

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