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Harq-ack for a plurality of carrier groups of a downlink slot set

A downlink, carrier group technology, applied in the field of HARQ-ACK feedback, can solve the problem of difficult to align the time slot length for transmission and so on

Active Publication Date: 2020-06-09
LENOVO (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in 5G networks, when carriers with different subcarrier spacing values ​​are aggregated together, different slot lengths may make it difficult to align to send corresponding HARQ-ACK feedback in one UCI

Method used

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  • Harq-ack for a plurality of carrier groups of a downlink slot set
  • Harq-ack for a plurality of carrier groups of a downlink slot set
  • Harq-ack for a plurality of carrier groups of a downlink slot set

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Embodiment Construction

[0027] As will be understood by those skilled in the art, aspects of the embodiments may be embodied as a system, apparatus, method or program product. Accordingly, an embodiment may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, microcode, etc.), or an embodiment combining software and hardware aspects.

[0028] For example, the disclosed embodiments may be implemented as hardware circuits comprising custom very large scale integration ("VLSI") circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. The disclosed embodiments may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like. As another example, the disclosed embodiments may comprise one or more physical or logical blocks of executable code, which may, for example, be organized as...

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PUM

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Abstract

Apparatuses, methods, and systems are disclosed for communicating HARQ-ACK feedback for a plurality of carrier groups of a downlink slot set. One apparatus (400) includes a transmitter (430) that transmits (1605) transmits, to a remote unit, multiple downlink transmissions in a downlink slot set. The downlink slot set comprises a first number of reference slots and a second number of carriers grouped into a plurality of carrier groups based on a subcarrier spacing value of each carrier, such that each carrier in a carrier group has the same subcarrier spacing value. The apparatus includes a receiver (435) that receives (1610) receives a HARQ-ACK codebook from the remote unit for the downlink slot set, wherein the HARQ-ACK codebook for the downlink slot set corresponds to all downlink transmissions in the downlink slot set.

Description

technical field [0001] The subject matter disclosed herein relates generally to wireless communications and, more particularly, to communicating HARQ-ACK feedback for multiple carrier groups for a set of downlink slots. Background technique [0002] The following abbreviations are defined herein, at least some of which are referred to in the following description. [0003] 3rd Generation Partnership Project (“3GPP”), Acknowledgment (“ACK”), Access and Mobility Management Function (“AMF”), Binary Phase Shift Keying (“BPSK”), Carrier Aggregation (“CA” ), Clear Channel Assessment (“CCA”), Control Channel Element (“CCE”), Cyclic Prefix (“CP”), Channel State Information (“CSI”), Common Search Space (“CSS”), Discrete Fourier Transform Extension (“DFTS”), Downlink Assignment Index (“DAI”), Downlink Control Information (“DCI”), Downlink (“DL”), Evolved Node B (“eNB”), European Telecom Standards Institute ("ETSI"), Frame Based Equipment ("FBE"), Frequency Division Duplex ("FDD"), F...

Claims

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Application Information

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IPC IPC(8): H04L1/16
CPCH04L1/1614H04L1/1854H04L1/1896H04L5/0055H04L5/001H04L5/0007H04L27/2602H04L5/0053H04B7/0456H04L1/1819H04L5/0094H04W72/0446H04W72/23
Inventor 雷海鹏罗伯特·特里斯坦·洛夫
Owner LENOVO (BEIJING) CO LTD