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Method for dispatching hybrid automatic repeat request (HARQ)

A hybrid automatic retransmission and automatic retransmission request technology, applied in the field of communication, can solve the problems of high complexity and low reliability, and achieve the effects of convenient processing, high reliability and overcoming high complexity.

Active Publication Date: 2009-12-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0014] The present invention aims to provide a HARQ scheduling method to solve the problems of high complexity and low reliability of the above scheme

Method used

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  • Method for dispatching hybrid automatic repeat request (HARQ)
  • Method for dispatching hybrid automatic repeat request (HARQ)
  • Method for dispatching hybrid automatic repeat request (HARQ)

Examples

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Embodiment Construction

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0039] Figure 4 Shown is a flowchart of a HARQ scheduling method according to an embodiment of the present invention, including the following steps:

[0040] Step S10, reserving at least one HARQ process for semi-persistent scheduling;

[0041] Step S20, UE decoding and reserving a HARQ transmission of a HARQ process in the HARQ process fails, and there is a semi-persistent scheduling opportunity between the HARQ process and the next HARQ retransmission opportunity;

[0042] Step S30, use dynamic scheduling instead of (Override) semi-persistent scheduling or still use semi-persistent scheduling to cancel the next HARQ retransmission.

[0043] The semi-persistent scheduling opportunity refers to one subframe or consecutive multiple subframes in which persistent resources are located. The HARQ retransmission opportunity refers ...

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Abstract

The invention provides a method for dispatching a hybrid automatic repeat request (HARQ), which comprises the following steps: at least one HARQ process is reserved for semi-persistent dispatch; UE decodes the one-time HARQ transmission failure of one HARQ process in the reserved HARQ processes and a semi-persistent dispatching occasion occurs between the HARQ process and an occasion of the next HARQ retransmission; and the next HARQ retransmission is canceled by using dynamic dispatch to replace the semi-persistent dispatch or by still using the semi-persistent dispatch. The method for dispatching the HARQ is simple and clear and has convenient processing, high reliability and less delay.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a scheduling method for hybrid automatic repeat request. Background technique [0002] figure 1 The Evolved Universal Terrestrial Radio Access Network (E-UTRAN for short) of the third-generation mobile communication Long Term Evolution (Long Term Evolution, referred to as LTE) system is shown. It can be called the downlink layer 2 structure of the radio interface protocol of the base station eNB). In the media access control (Media Access Control, MAC for short) protocol layer, there is a scheduling / priority handling (Scheduling / Priority handling) functional entity, wherein the scheduling function supports dynamic scheduling (Dynamic scheduling) and semi-persistent scheduling (or called Semi-persistent Scheduling); the priority processing function supports priority processing between different logical channels of the same user equipment (User Equipment, UE for short),...

Claims

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Application Information

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IPC IPC(8): H04L1/18
Inventor 张健张银成
Owner ZTE CORP
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