CN113114432B - 一种针对pusch dtx的调度方法 - Google Patents
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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Abstract
本发明公开了一种针对PUSCH DTX的调度方法,包括以下方法步骤:步骤1:终端与基站进行连接,连接成功后,基站调度终端上行数据PUSCH的同时向终端发送新传的UL DCI指示;步骤2:终端根据新传的UL DCI指示进行PUSCH的传输;步骤3:基站分析判断接收到的终端数据进行解析处理,若基站MAC收到物理层L1反馈的PUSCH CRC结果为ERROR时,则要求终端进行重传处理,并且基站内部指示物理层L1进行上行数据解析;步骤4:基站根据CRC错误类型来进行差别重传处理。本发明通过对CRC错误类型进行判断,采用不同重传处理方式,提高效率的同时避免了无效HARQ合并造成的空口资源浪费。
Description
技术领域
本发明涉及无线通信***领域,尤其涉及一种针对PUSCH DTX的调度方法。
背景技术
基站对上行共享数据信道(后续简称PUSCH)的传输处理中,当MAC收到物理层L1反馈的PUSCH CRC结果为ERROR时,会进行对应的重传调度处理,由于当前只对CRC对或错进行区分,没有区分CRC错的原因,这里存在优化处理空间。
当CRC错是因为物理层L1未解析到PUSCH信号,全是噪声时,可以认为当前的PUSCH检测结果为DTX,而目前对于DTX的处理仍然按照CRC错进行处理,即MAC按照重传流程进行指示重传,使物理层L1进行重传HARQ通道合并,获取重传增益。若PUSCH初传时的检测反馈为DTX,此时L1初传的HARQ通道中存放的为噪声数据,则后续的重传均无法合并成功,无法获得重传增益,浪费了空口资源。
专利(申请号为CN201310229642.4)公开了上行混合自动重传请求反馈方法、装置和***,该方法包括:eNB接收UE发送的PUSCH传输数据块,并进行CRC校验;在完成CRC校验后,所述eNB在调度所述PUSCH传输数据块的下一次重传子帧的对应下行子帧发送ePDCCH,指示所述UE不再为HARQ进程分配新的PUSCH资源。该专利在进行CRC校验后进行指示重传,并未对CRC错误类型进行判断,易造成空口资源浪费。
发明内容
本发明的目的在于克服现有技术的不足,提供一种针对PUSCH DTX的调度方法。
本发明的目的是通过以下技术方案来实现的:
一种针对PUSCH DTX的调度方法,包括以下方法步骤:
步骤1:终端与基站进行连接,连接成功后,基站调度终端上行数据PUSCH的同时向终端发送新传的UL DCI指示;
步骤2:终端根据新传的UL DCI指示进行PUSCH的传输;
步骤3:基站分析判断接收到的终端数据进行解析处理;
步骤4:基站根据CRC错误类型来进行差别重传处理。
所述步骤3具体包括:若基站MAC收到物理层L1反馈的PUSCH CRC结果为ERROR时,则要求终端进行重传处理,并且基站内部指示物理层L1进行上行数据解析。
所述步骤4中CRC错误类型包括:
物理层L1未解析到PUSCH信号,即物理层解析到PUSCH数据引起的CRC错误;
PUSCH初传时的检测反馈为DTX,即物理层未解析到PUSCH数据引起的CRC错误。
所述步骤4中的差别重传处理具体包括:
若物理层L1未解析到PUSCH信号,则基站进行正常重传,基站采用不同于初传时的冗余版本号,指示给终端重传的UL DCI,基站MAC指示基站物理层L1对接收到的重传数据进行HARQ通道合并;
物理层L1检测到初传的PUSCH反馈为DTX时,则基站采用初传相同的冗余版本号RV=0指示终端重传的UL DCI,基站MAC指示基站物理层L1清空HARQ通道数据,不进行HARQ通道合并,而进行重新接收数据。
本发明的有益效果:当检测到初传的PUSCH反馈为DTX时,MAC只是物理层L1清除HARQ通道接收的数据信息,重新接收PUSCH,并且基站通过DCI中的冗余版本号RV=0指示空口进行重传,避免了无效harq合并造成的空口资源浪费。
附图说明
图1是本发明的流程框图;
图2是本发明的实施模块顺序图。
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解,现对照附图说明本发明的具体实施方式。
本实施例中,如图1所示,一种针对PUSCH DTX的调度方法,包括以下方法步骤:
步骤1:终端与基站进行连接,连接成功后,基站调度终端上行数据PUSCH的同时向终端发送新传的UL DCI指示;
步骤2:终端根据新传的UL DCI指示进行PUSCH的传输;
步骤3:基站分析判断接收到的终端数据进行解析处理;
步骤4:基站根据CRC错误类型来进行差别重传处理。
所述步骤3具体包括:若基站MAC收到物理层L1反馈的PUSCH CRC结果为ERROR时,则要求终端进行重传处理,并且基站内部指示物理层L1进行上行数据解析。
所述步骤4中CRC错误类型包括:
物理层L1未解析到PUSCH信号,即物理层解析到PUSCH数据引起的CRC错误;
PUSCH初传时的检测反馈为DTX,即物理层未解析到PUSCH数据引起的CRC错误。
所述步骤4中的差别重传处理具体包括:
若物理层L1未解析到PUSCH信号,则基站进行正常重传,基站采用不同于初传时的冗余版本号,指示给终端重传的UL DCI,基站MAC指示基站物理层L1对接收到的重传数据进行HARQ通道合并;
物理层L1检测到初传的PUSCH反馈为DTX时,则基站采用初传相同的冗余版本号RV=0指示终端重传的UL DCI,基站MAC指示基站物理层L1清空HARQ通道数据,不进行HARQ通道合并,而进行重新接收数据。
方法实施具体流程为:
1.终端和基站连接成功;
2.当基站开始调度终端上行数据PUSCH时,向终端发送新传的UL DCI指示;
3.终端会根据新传的UL DCI指示进行PUSCH的传输;
4.基站根据接收到的终端数据结果来确定下一步的处理;
5.如果基站检测到本次接收到的数据是错误的,即是说CRC校验是错误的,则会要求终端进行重传处理,基站内部也会指示物理层L1去进行对应的上行数据解析;
6.在基站指示物理层L1去解析重传数据的过程中,会根据新传的CRC错误类型来进行差别处理;
7.如果是物理层解析到了PUSCH数据引起的CRC错误,则基站进行正常重传,基站采用不同的冗余版本号,指示给终端重传的UL DCI,基站MAC指示基站物理层对接收到的重传数据进行HARQ合并;
8.如果是物理层未解析到PUSCH数据引起的CRC错误(DTX),则基站采用初传相同的冗余版本号RV=0指示终端重传的UL DCI,基站MAC指示基站物理层清空HARQ通道数据,不进行HARQ合并,而进行重新接收数据。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护的范围由所附的权利要求书及其等效物界定。
Claims (1)
1.一种针对PUSCH DTX的调度方法,其特征在于,包括以下方法步骤:
步骤1:终端与基站进行连接,连接成功后,基站调度终端上行数据PUSCH的同时向终端发送新传的UL DCI指示;
步骤2:终端根据新传的UL DCI指示进行PUSCH的传输;
步骤3:基站分析判断接收到的终端数据并进行解析处理;若基站MAC收到物理层L1反馈的PUSCH CRC结果为ERROR时,则要求终端进行重传处理,并且基站内部指示物理层L1进行上行数据解析;
步骤4:基站根据CRC错误类型来进行差别重传处理;
若物理层解析到PUSCH数据引起的CRC错误,则基站进行正常重传,基站采用不同的冗余版本号,指示给终端重传的UL DCI,基站MAC指示基站物理层对接收到的重传数据进行HARQ合并;
若物理层未解析到PUSCH数据引起的CRC错误,即PUSCH初传时的检测反馈为DTX,则基站采用初传相同的冗余版本号RV=0指示终端重传的UL DCI,基站MAC指示基站物理层清空HARQ通道数据,不进行HARQ合并,而进行重新接收数据。
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