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Method for controlling time regulating frame flow

A technology of time adjustment and flow control, which is applied in the direction of network flow/resource management, electrical components, radio/inductive link selection and arrangement, etc. It can solve the problem of unstable Iub interface transmission, inaccurate adjustment, processing resources and waste of Iub interface bandwidth And other issues

Inactive Publication Date: 2008-02-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the time adjustment method in the prior art, base station A and base station B will report the time adjustment frame to RNC respectively, obviously in this case, the time adjustment frame sent from base station A is meaningless, it is an invalid frame, and also caused Waste of NodeB and RNC processing resources and Iub port bandwidth
Moreover, if the subsequent FP frame after the time adjustment still fails to reach the NodeB within the time window, it is meaningless for the RNC to perform time adjustment during the period when the NodeB refeeds back the time adjustment frame to the RNC, so during this period The time adjustment frame sent by NodeB is also an invalid frame
[0008] In addition, due to the instability of Iub interface transmission, the arrival time of FP frames under the same FP bearer detected by NodeB may fluctuate within a certain time range every time. Adjustment, there may be inaccurate adjustment or even ToA oscillation

Method used

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  • Method for controlling time regulating frame flow
  • Method for controlling time regulating frame flow
  • Method for controlling time regulating frame flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: The situation where there is only one FP bearer on a certain CCTrCH, that is, all FP frames on the CCTrCH are borne on the same FP bearer.

[0054] Fig. 2 is a flow control flow chart of the time adjustment frame carried by only one FP on a certain CCTrCH according to the present invention. The processing method of step 200 to step 204 is exactly the same as the processing of step 100 to step 104, except that the FP frames at this time belong to the same FP bearer, and there is only one FP bearer on the CCTrCH. The time adjustment value reported to the RNC in step 204 is the time adjustment value carried by one FP in the CCTrCH. Because there is only one FP bearer on the CCTrCH at this time, the time adjustment value is also the time adjustment reported by the CCTrCH to the RNC within the Twait timer. value.

[0055] It can be seen from this embodiment that the reporting time interval of the time adjustment frame is Twait. This method reduces the transmission ...

Embodiment 2

[0056] Embodiment 2: An implementation of a situation where there are multiple FP bearers on a certain CCTrCH. On the NodeB side, according to the time adjustment value of the FP that needs to be time adjusted on the CCTrCH, the latest one is selected as the time adjustment value of the CCTrCH and reported to the RNC.

[0057] Fig. 3 is the flow control flow chart of the time adjustment frame carried by multiple FPs on a certain CCTrCH according to the present invention. The specific implementation steps are as follows:

[0058] Step 300: Calculate the time adjustment value of each FP carried on the CCTrCH according to the method of the first embodiment.

[0059] Steps 301 to 302: The NodeB selects the latest one of all the time adjustment values ​​calculated on the CCTrCH as the time adjustment value of the CCTrCH, and reports this value to the RNC.

[0060] The processing of this step has the following two situations:

[0061] When the FP bearer is outside the time window and af...

Embodiment 3

[0064] Embodiment 3: Another implementation of the situation where there are multiple FP bearers on a certain CCTrCH. On the NodeB side, the time adjustment value of the FP that needs to be time adjusted on the CCTrCH is reported to the RNC, and the RNC selects the latest one of all the reported time adjustment values ​​as the time adjustment value of the CCTrCH.

[0065] Figure 4 is the second flow control flow chart of the time adjustment frame carried by multiple FPs on a certain CCTrCH according to the present invention. The specific implementation steps are as follows:

[0066] Step 400: Calculate the time adjustment value of each FP carried on the CCTrCH according to the method of the first embodiment.

[0067] Step 401: The NodeB reports the time adjustment values ​​carried by all FPs to the RNC.

[0068] Step 402: The RNC selects the latest one of the reported time adjustment values ​​of all FPs carried on the CCTrCH as the time adjustment value of the CCTrCH, and adjusts ...

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Abstract

This invention discloses a flow control method for a time regulation frame, which sets a timer for each CCTrCH at the NodeB side, when a FP in CCTrCH appears out of the time window for the first time, the timer is started and the arriving time of ToA of said FP frame is recorded in the timer sphere and the successive frames are judged, when the timer exceeds the time, the ToA values in the timer sphere are processed evenly, then the difference between the back point of the time window and that mean value is taken as the time regulation value of said FP loading reported to RNC, when there are multiple loads in the CCTrCH, NodeB selects one of the latest time regulation value in all FP loads as the time regulation value of said CCTrCH reported to RNC, which can reduce the load of Iub interface because of over heavy flow of the time regulation frame to save resources.

Description

Technical field [0001] The invention relates to flow control technology, in particular to a time adjustment frame flow control method. Background technique [0002] In the wideband code division multiple access (WCDMA) system, the radio network controller (RNC) and the base station NodeB adopt the frame protocol (FP) frame to exchange data through the Iub interface. In the downlink direction, each FP frame corresponds to a certain air interface transmission time, and the latest arrival time of the FP frame is set on the NodeB side. In order to ensure that the issued FP frame is sent to the NodeB before the latest arrival time required by the NodeB, and does not increase the service delay because the FP frame arrives at the NodeB too early, it introduces a time window and a time adjustment frame the concept of. [0003] The time window is a time range specified by the NodeB for the FP frame to normally arrive at the NodeB. The range is limited by the point before the time window (...

Claims

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Application Information

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IPC IPC(8): H04Q7/20H04Q7/34H04W28/10H04W88/08
Inventor 刘威
Owner HUAWEI TECH CO LTD
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