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Iub interface flow control plan

A flow control and solution technology, applied in the field of communication, can solve the problems of inability to fully utilize the bandwidth, inability to increase the HSDPA rate, disadvantages, etc., and achieve the effect of preventing flow control from occurring too frequently, avoiding data loss, and improving utilization

Inactive Publication Date: 2006-11-08
SHANGHAI HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

On the other hand, the maximum rate of HSDPA data transmission can only be the size of the allocated bandwidth, even if the current dedicated channel occupies a small bandwidth, the rate of HSDPA cannot be increased
[0014] Therefore, when the WCDMA system actually builds a network, the above-mentioned method of fixedly allocating the Iub bandwidth to the HSDPA service is particularly unfavorable when the Iub bandwidth resource is usually very tight, and cannot realize the full utilization of the bandwidth.

Method used

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Embodiment Construction

[0056] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0057] The Iub interface flow control solution according to an embodiment of the present invention includes the first and second processes.

[0058] First explain the first process, such as Figure 8 As shown, this process includes the following steps:

[0059] In step 810, the base station monitors its current remaining allocatable Iub bandwidth. Since the Iub bandwidth between the RNC and the NodeB and the establishment of the transmission bearer of each dedicated channel and the common channel are equal, the NodeB can use this information. The flow control process in the NodeB can monitor the Iub port data transmission flow of all HSDPA users in the NodeB according to the total bandwidth of the NodeB and the bandwidth information of the respective dedicated chan...

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Abstract

The present invention discloses a WCDMAR and Iub interface flow control scheme of follow-up compatible version, for raising Iub interface bandwidth utilization ratio. The present invention provided method contains redistributing the all HSDPA user in NodeB when current the rest distributable Iub band width exceeds up and down threshold, in HSDPA user cache capacity exceeding upper threshold, demanding RNC stopping transmitting; in user cache capacity less than down threshold, demanding RNC distributing the air interface concordant flow rate, in user cache capacity being zero, demanding RNC distributing greater than the air interface flow rate; furthermore said invention also defining delay zone to different kinds of threshold.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to the Iub interface flow control technology of R5 and subsequent compatible versions in the Wideband Code Division Multiple Access (WCDMA) communication technology. Background technique [0002] Mobile communication is a hot spot in the development of communication technology in the recent period, and its rapid momentum is especially reflected in the third-generation mobile communication global standard WCDMA. So far, three phases of network protocols R99, R4, and R5 have been introduced. [0003] One of the important features of the R5 version of WCDMA technology is High Speed ​​Downlink Packet Access (HSDPA). The basic idea is to establish a high-speed shared transmission channel to increase the data transmission rate. The introduction of HSDPA technology makes the data transmitted on the Iub port (the standard interface between the radio network controller RNC and the base statio...

Claims

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Application Information

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IPC IPC(8): H04L12/24
Inventor 康玮
Owner SHANGHAI HUAWEI TECH CO LTD
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