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A transmission method, device and system

A transmission method and modulation method technology, applied in the fields of transmission methods, devices and systems, can solve the problems of increasing UE complexity, reducing transmission efficiency, wasting time and frequency resources, etc.

Active Publication Date: 2022-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, if the base station configures the UE to transmit UCI in PUSCH, it configures a higher-order modulation scheme and more time-frequency resources to meet the low code rate requirements of UCI transmission, especially when the channel quality is poor, then when When the number of UCI bits to be transmitted is small, allocating a lot of time-frequency resources and high-order modulation methods to the UE will undoubtedly reduce the transmission efficiency, increase the complexity of the UE, and waste time-frequency resources

Method used

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  • A transmission method, device and system
  • A transmission method, device and system
  • A transmission method, device and system

Examples

Experimental program
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Embodiment

[0228] UCI is configured to be transmitted in PUSCH, and there is no UL-SCH in PUSCH, the base station and UE agree on each type of UCI (including one or more of HARQ-ACK, SR, CSI-1 and CSI-2) configured by the base station Modulation mode, if the actual code rate of the UCI bits is less than the threshold Tm, the UE will not process this configuration of the base station (considering it to be a wrong configuration). That is to say, the base station is not allowed to configure the UCI transmission code rate for the UE to be less than Tm. The modulation methods here include the modulation methods in Table 3. Then, the determination of Tm is carried out in one of the following ways.

[0229] The base station and the UE agree that the value of Tm can be derived from the parameter r and the beta factor. Or when r and beta are used as fixed values, a corresponding constant value is obtained for each modulation mode. The following gives a variety of ways to derive Tm (you can use...

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Abstract

The embodiment of the present disclosure discloses a transmission method, device, and system. The transmission method includes: when UCI is configured to be transmitted in PUSCH, and there is no UL-SCH in PUSCH, determine according to the actual code rate of UCI and the preset threshold Transmit UCI; wherein, the preset threshold is determined according to a predetermined code rate and a predetermined beta β value. In the embodiment of the present disclosure, when UCI is transmitted based on a given modulation method, the transmission UCI is determined according to the actual code rate of UCI and the preset threshold. This limitation will make the number of UCI bits transmitted in a given modulation method Under certain circumstances, the allocated time-frequency resources are relatively reasonable, that is, the code rate matching the modulation mode can be realized, thereby improving transmission efficiency and reducing implementation complexity.

Description

technical field [0001] The embodiments of the present disclosure relate to the field of communications, and in particular, to a transmission method, device, and system. Background technique [0002] In a new generation mobile communication system (NR, New Radio), for a user equipment (UE, User Equipment), uplink control information (UCI, Uplink Control Information) can be transmitted through a physical uplink shared channel (PUSCH, Physical Uplink Shared Channel) , and the UE is allowed to have no actual uplink data, that is, there is only UCI in the PUSCH, and there is no uplink shared channel (UL-SCH, Uplink Shared Channel). In this case, the PUSCH resource allocated by the base station to the UE is actually used to transmit UCI. [0003] Currently in NR, all modulation modes and code rates of PUSCH are allowed to transmit UCI. For example, it is allowed to use a higher-order modulation method (such as Quadrature Amplitude Modulation (QAM, Quadrature Amplitude Modulation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0015H04L1/0004H04L5/0053H04L5/0044H04W72/21H04L1/0068H04W72/0446H04W72/0453H04W72/0466
Inventor 苟伟郝鹏左志松
Owner ZTE CORP