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Method and device for downlink scheduling

A scheduling method and process technology, applied in electrical components, wireless communication, etc., can solve problems such as being occupied and high-priority services cannot be scheduled in time.

Active Publication Date: 2010-08-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0007] The present invention provides a downlink scheduling method and device to solve the problem in the prior art that high-priority services cannot be scheduled in time due to processes being occupied

Method used

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  • Method and device for downlink scheduling
  • Method and device for downlink scheduling
  • Method and device for downlink scheduling

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Embodiment Construction

[0031] In order to ensure that high-priority services can be served in time, the present invention proposes a downlink scheduling scheme based on process preemption.

[0032] join figure 1 , which is a flow chart of the downlink scheduling method provided by the present invention, including:

[0033] S101: Obtain downlink service data of a user equipment UE;

[0034] S102: sort all the downlink service data according to the priority of the service data, and determine the high priority service data;

[0035] S103: Determine whether the UE has an idle process in the current subframe, if yes, perform S104, otherwise, perform S105;

[0036] S104: Send the high-priority service data to the UE through a downlink channel;

[0037] S105: Determine whether there is a preemptible process, if yes, execute S106; otherwise, execute S107;

[0038] S106: Put the high-priority service data in the cache corresponding to the process that can be preempted, and send it to the UE through a dow...

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Abstract

The invention discloses a method and a device for downlink scheduling, wherein the method comprises the following steps: acquiring downlink service data of UE (User Equipment); and judging whether a contended process exists or not when determining that the UE has no idle progress in a current frame, if yes, transmitting the service data to the UE through a downlink channel and if not, denying thetransmission on the service data. By the invention, the priority transmission of high priority services can be effectively ensured, the time delay of the high priority services can be reduced and thetransmission quality of the UE can be improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a downlink scheduling method and device in a communication system. Background technique [0002] The Long Time Evolution (LTE) system of the 3rd Generation Partnership Project (3GPP) is a resource-sharing system, and scheduling has an important impact on the performance of the LTE system. The goal of LTE system scheduling is to complete Allocation of shared physical resources between uplink and downlink. In order to improve the reliability of transmission, the Hybrid Automatic Repeat Request (HARQ) technology is adopted in the LTE system. Through HARQ, data packets with transmission errors can be retransmitted multiple times to obtain retransmission gain, thereby To achieve the purpose of error correction at the physical layer. [0003] For an LTE frequency division duplex (Frequency Division Duplex, FDD) system, the downlink supports a maximum of 8 HARQ pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/04
Inventor 赵亚利鲍炜谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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