A method and apparatus for control of high speed downlink packet data flow

Abstract

This invention discloses one high speed down group data flow control method, which comprises the following steps: processing each user queen band pre-aligning and lob shaping in each control circle and to compute capacitor align control frame parameters; storing pre-band align bias values into one whole variable; if value is smaller than zero then integrating upper on Credits parameters computation results; if value is larger than zero then integrating down as Credits value; if the value is zero then processing upper and down integral as Credits; computing this wide band align bias as relative local variable and whole value for memory. This invention also discloses one flow control device for group data.

Description

technical field [0001] The invention relates to a flow control method and device, in particular to a flow control method and device for high-speed downlink packet data, belonging to the technical field of mobile communication. Background technique [0002] In the third generation of mobile communications (3G) and future enhanced mobile communications, the application of data services, especially high-speed downlink packet data services (such as wireless Internet browsing and downloading, video-on-demand, etc.), is becoming more and more extensive and important. It will greatly enrich the lives of mobile terminal users. Therefore, the R5 version of the WCDMA technology introduces a high speed downlink packet access (HSDPA for short) technology to support high-speed downlink packet data services. [0003] In the data service processing of the WCDMA technology Release99 version, the packet scheduling function is completed by the Radio Network Controller (RNC for short), which ...

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Problems solved by technology

[0025] 2. Iub traffic shaping: The above-mentioned queue bandwidth pre-allocation simply considers the attributes of the service types, but does not consider the available Iub bandwidth on the NodeB and RNC Iub interface

[0029] The disadvantage of the above prior art is that when NodeB reports the flow distribution control frame, the number of MAC-d PDUs used to indicate the number of MAC-d PDUs sent by the RNC side within one HS-DSCH Interval time interval in the flow distribution control frame The parameter HS-DSCH Credits has been rounded down (when GBR is not configured), so when the HS-DSCH Credits is less than a certain value, the allocated bandwidth value for the two previous traffic shaping has exceeded the preset ratio value β, so the flow allocation control frame needs to be reported, but because the two Credits before and after are rounded down, the Credits value is the same, so the parameters of the flow allocation control frame sent to the RNC are exactly the same, resulting in the uncontrollability of the bandwidth of the Iub port , which increases the probability of Iub port data congestion events, cannot optimally use the bandwidth resources of the Iub port, and also leads to the reporting of invalid traffic allocation control frames

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