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Dispatching method and device

A scheduling method and technology of a scheduling device, which are applied to electrical components, wireless communication, and error prevention/detection using return channels, can solve problems such as bandwidth waste, and achieve the effect of improving bandwidth utilization.

Inactive Publication Date: 2013-07-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is still bandwidth available at this time, but because 10 subbursts have been scheduled, the upper limit of the number of subbursts has been reached, so the scheduling will stop, resulting in greater bandwidth waste

Method used

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  • Dispatching method and device

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Experimental program
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Embodiment Construction

[0023] Such as figure 1 As shown, a scheduling method provided by an embodiment of the present invention includes:

[0024] Step S1, the normal group (also called construction) subburst (HARQ data burst). Wherein, the normal group subburst means that the construction needs the terminal to feedback whether the subburst transmission is successful.

[0025] Step S2 , judging whether the feedback area in the group subburst is insufficient, if yes, execute step S3 ; if not, execute step 8 .

[0026] Step S3, judging whether there is an attempt to increase the subburst size of the mobile station, if yes, execute step S4; if not, execute step S5. For Wimax, it can be judged whether an attempt has been made to increase the K value of the mobile station, where the K value is the buffer buffer opened by the receiving end (including the mobile station and the base station) for a subburst, and the length of the subburst cannot exceed the buffer size.

[0027] Step S4, increase the subb...

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PUM

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Abstract

The invention relates to the field of wireless communication, and discloses a dispatching method. The dispatching method comprises the following steps of: selecting subburst of a normal group; when the feedback area of the subburst of the group is insufficient and the subburst of a mobile station is not tried to improve, improving the magnitude of the subburst of the mobile station with good channel condition; and if the feedback area is insufficient, selecting certain subburst and closing repeat of the selected subburst so that a subsequent group does not need the subburst fed back by a terminal and the purpose of avoiding bandwidth waste is fulfilled. The invention also discloses a dispatching device, which comprises a group module, a processing module and an improvement module. When the feedback area is insufficient, the method and the device can ensure the transmission quality and improve the bandwidth utilization rate of hybrid automatic repeat request (HARQ) transmission.

Description

technical field [0001] The present invention relates to the field of wireless broadband processing, in particular to a scheduling method and device. Background technique [0002] HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) is a combination of FEC (Forward Error Correction, Forward Error Correction) and ARQ (Automatic Repeat Request, Automatic Repeat Request), which can eliminate wireless signal to a certain extent The impact brought by poor conditions brings gains and improves system bandwidth utilization. [0003] The following takes the WiMAX system (IEEE802.16e) as an example to discuss how to reduce the feedback area when HARQ transmits data packets. HARQ is equivalent to a multi-channel stop-and-wait protocol, that is, after sending data on a certain channel, it must wait for the receiver to feedback whether it has been received correctly before proceeding to the next step (retransmitting or sending a new packet); in this way, the base stati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L1/16H04W72/12
Inventor 孙雷
Owner ZTE CORP