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Method and apparatus for semi-persistent scheduling

A semi-persistent scheduling and dynamic scheduling technology, applied in the field of communication, can solve problems such as low reliability, achieve the effect of solving abnormal situations, avoiding out of synchronization, and increasing reliability

Active Publication Date: 2010-03-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially solve the technical defect of low reliability caused by using a timer to determine the location of SPS resources in the prior art

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  • Method and apparatus for semi-persistent scheduling

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Embodiment Construction

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0041] The present invention mainly uses the relationship between the SFN and the subframe number to determine the position of the SPS resource. Since the relationship between SFN and subframe number must maintain strict synchronization between eNB and UE, the present invention binds SPS resources with SFN and subframe number to improve the reliability of SPS resources and avoid out-of-synchronization between eNB and UE . In order to better understand the present invention, the system frame and subframe in LTE will be briefly described be...

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Abstract

The invention provides a semi-persistent scheduling (SPS) method, including receiving data packets to be scheduled, and allocating the semi-persistent scheduling (SPS) resources according to the current system frame number (SFN) and sub-frame number for transmission of the data packet. By correlating the SPS resource time zone position and the SFN with the sub-frame number, the invention is capable of increasing reliability of the SPS resource, and avoiding desynchronizing between the UE and the eNB.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a semi-persistent scheduling method and device. Background technique [0002] In order to ensure a high competitiveness in a longer period of time, the 3GPP (Third Generation Partnership Project, Third Generation Partnership Project) has launched a research project on LTE (Long Term Evolution, Long Term Evolution) of 3G radio interface technology. [0003] At present, there are two types of scheduling modes determined by LTE, dynamic scheduling and semi-persistent scheduling. These two scheduling modes will be briefly introduced below. [0004] 1) Dynamic scheduling [0005] Such as figure 1 As shown in , it is a schematic diagram of dynamic scheduling in the prior art. exist figure 1 Among them, when the data 1 (data1) arrives, the eNB (evolved base station) temporarily allocates the resource 1 (resource1) for the transmission of the data 1 through the resourc...

Claims

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Application Information

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IPC IPC(8): H04W72/12
Inventor 李国庆高卓谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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