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Adaptive bandwidth regulating method for block data business

A packet data service and self-adaptive bandwidth technology, which is applied in the communication between multiple stations, etc., can solve the problems that it is not a TCP service, cannot accurately reflect the data source rate of non-TCP protocol, and does not consider the influence of the data source rate, etc. , to achieve the effect of ensuring service quality, strengthening pertinence and rationality, and saving downlink bandwidth resources

Active Publication Date: 2006-10-18
XFUSION DIGITAL TECH CO LTD
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AI Technical Summary

Problems solved by technology

The TCP protocol controls the source rate of the upper-layer services carried by it, so the measurement result of the data rate encapsulated by the TCP protocol on the WCDMA UTRAN side is not the real source rate of the TCP service; although other non-TCP protocols do not control the source rate of the service, However, RLC traffic measurement itself cannot accurately reflect the source rate of non-TCP protocol data, and the throughput of MAC is also limited by the bandwidth of the physical layer, so it cannot truly reflect the source rate requirements of non-TCP services.
[0006] To sum up, the currently used packet data service monitoring methods do not take into account the influence of the characteristics of different protocol types on the data source rate arriving at the WCDMA UTRAN side, and cannot accurately estimate the source rate requirements of the packet data service. The accuracy of adaptive bandwidth adjustment cannot be effectively guaranteed

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Embodiment Construction

[0025] Because the TCP protocol has carried out source rate control on the upper layer business it bears, and the non-TCP protocol has not carried out source rate control on the upper layer business it has carried, so the present invention divides the received data packet into TCP and non-TCP according to this characteristic Two types, and adaptive bandwidth adjustment according to their respective characteristics. Refer to the attached figure 2 The method for adjusting the adaptive bandwidth of the packet data service proposed by the present invention is described in detail, including the following steps:

[0026] Step 201: After the RNC (radio network controller) receives the downlink PS packet data service establishment request, it allocates a suitable initial bandwidth according to the current load of the cell and other resource conditions, and establishes corresponding PDCP (packet data convergence protocol), RLC (Radio Link Control) and other examples. This step is a ...

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Abstract

A method for regulating adaptive band width of packet data service includes counting up protocol type of downlink data packet to confirm whether dominant protocol type is TCP type or non-TCP type and reporting it to radio resource control RRC entity, counting up throughput / service amount of downlink data packet by PDCP / RLC and reporting it to RRC entity; judging whether current dominant type is TCP type or not by RRC entity and using service amount reported by RLC to regulate band width if it is or otherwise using throughput reported by PDCP to regulate band width.

Description

technical field [0001] The invention relates to the technical field of WCDMA wireless resource management, in particular to an adaptive bandwidth adjustment method for packet data services. Background technique [0002] From the theoretical and practical situation of CDMA, the capacity of CDMA system is generally limited by the downlink bandwidth. With the further development of data services, the actual throughput requirement of the downlink will be far greater than that of the uplink, and the problem of limited downlink bandwidth will become more serious. The currently disclosed multi-user detection (MUD) technology will further improve the uplink capacity. Although the disclosed smart antenna (SA) technology has an improvement effect on both downlink and uplink, the improvement on the downlink is not as great as that on the uplink. In this case, the downlink bandwidth becomes a relatively precious resource in the CDMA system. [0003] figure 1 (Extracted from 3GPP TS 2...

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Application Information

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IPC IPC(8): H04B7/26
Inventor 黄凯涛
Owner XFUSION DIGITAL TECH CO LTD
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