Method and its system for radio network broad band regulation

Abstract

Measuring stability of link of wireless network, and resource occupied by wireless link control layer, the invention synthesizes measured results, and adjusts bandwidth of wireless network to reach optimal balanced point between transmission quality of wireless network and level of resources utilization. State of RLC layer occupying resources can be reflected by data quantity of data block to be sent by RLC layer, and sum total from data block, which is first unacknowledged successful sending, to last data block in sending window. It can reduce transmission burden by using event trigger mode to report measured result.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a wireless network bandwidth adjustment technology. Background technique [0002] Wideband Code Division Multiple Access ("WCDMA") is one of the three mainstream standards of the third generation mobile communication (the 3rd Generation, "3G"). It inherits the existing global mobile communication The system (Global Systems for Mobile communications, referred to as "GSM") features a high degree of standardization and good openness, and has good compatibility and interoperability with the GSM network. It is one of the development trends of mobile communications in the future. [0003] In the WCDMA system, the data needs to be channelized before being sent, that is, each data symbol is converted into several chips by multiplying with the channel code, thus increasing the bandwidth of the signal, that is, expanding the spectrum of the signal. The channel code is an Orthogonal Var...

AI Technical Summary

Problems solved by technology

[0011] In practical application, the above scheme has the following problems: the existing bandwidth adjustment methods are isolated from each other, there are contradictions, and the effect of optimizing resource allocation on stable links cannot be achieved

[0012] The main reason for this situation is that, since the existing bandwidth adjustment methods are relatively isolated, it is easy to cause contradictions when the various mechanisms are implemented at the same time

For example, when the channel quality deteriorates, the downlink transmission power reaches the predetermined upper threshold of the transmission power, resulting in a decrease in the bandwidth

However, due to the deterioration of channel quality and the increase of BO, the bandwidth will be increased, resulting in ping-pong adjustments, which fail to achieve the purpose of stabilizing the link.

In addition, BO measurement does not include the part of the data that has been sent but has not received feedback in the sending window, resulting in the reported measurement value being lower than the actual window occupation, there are errors, and the adjustment of the bandwidth is affected

In addition, the downlink traffic channel BLER is measured by the UE and the result is reported, which increases the burden on the UE and consumes a certain amount of air interface resources when reporting the measurement result

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