Dynamic channel bandwidth allocating method

Abstract

The dynamic channel bandwidth allocating method includes determining aerial interface quality based on the emitting power of the downstream code, and re-allocating the channel bandwidth of best effort (BE) business according to the aerial interface quality. Adopting the emitting power of the downstream code as the criterion of interface quality can reflect the aerial interface status precisely. Therefore, the present invention can meet the requirement of user in quality of service (QoS) as possible under the condition of allowed resource on one hand and limit the transmission rate of BE service under limited resource condition to maintain system stability on the other hand.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for dynamically configuring channel bandwidth. Background technique [0002] With the development of network communication technology, wireless terminal devices in wireless communication systems, such as mobile phones, also provide Internet access functions accordingly. Users can enjoy WWW (World Wide Web) browsing and FTP (Text Transfer Protocol) provided by the Internet in a wireless state. ) download and E_Mail (e-mail) and other services. This type of service has low requirements on delay, but the source data rate varies greatly. For example, when a user clicks on a WWW page connection, a page download request is sent, and one or more packet sequences will be sent. At this time, the channel There will be a large amount of data that needs to be transmitted quickly; when the download is completed, the user needs to spend a certain amount of time to read, and the...

AI Technical Summary

Problems solved by technology

[0007] However, the throughput rate cannot accurately measure the quality of the air interface. This is because when the amount of data in the cache is very small, the data that can be sent out in a time interval is less than the amount of data that the channel bandwidth can carry. If the throughput is calculated at this time A smaller value will be obtained, and it may be concluded that the quality of the air interface is poor, but the actual situation is not necessarily the case; moreover, sometimes the high-priority traffic will occupy the resources of the low-priority business after the increase , so that the rate of services with lower priority is reduced, and the measured throughput is also small, resulting in misjudgment of air interface quality deterioration; in addition, in order to improve resource utilization, the upper layer may dynamically adjust the size of the data transmission window, It will also affect the measured value of the throughput rate, resulting in misjudgment of the quality of the air interface

Therefore, the throughput rate is not suitable for determining the quality of the air interface in the process of dynamic channel configuration, that is, the existing technical solutions for dynamically configuring the channel bandwidth cannot reliably configure the required bandwidth resources for the channel, and cannot reasonably configure the channel bandwidth. dynamic configuration

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