A hybrid automatic repeat request harq feedback method and device

A technology of hybrid automatic retransmission and network equipment, applied in the field of communication

Active Publication Date: 2020-12-15
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the feedback scheme for the same slot length in the prior art is no longer suitable for scenarios like component carriers with different slot lengths in NR systems

Method used

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  • A hybrid automatic repeat request harq feedback method and device
  • A hybrid automatic repeat request harq feedback method and device
  • A hybrid automatic repeat request harq feedback method and device

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Embodiment Construction

[0066] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

[0067] The technical solutions described in the embodiments of the present application can be used in the fifth generation mobile communication technology (5G), and can also be used in the next generation mobile communication system.

[0068] Hereinafter, some terms used in the embodiments of the present application will be explained to facilitate the understanding of those skilled in the art.

[0069] (1) A network device, for example including a base station (for example, an access point), may refer to a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface. The base station can be used to convert received over-the-air frames to and from IP packets, acting as a router between the terminal device and th...

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Abstract

A hybrid automatic repeat request (HARQ) feedback method and device, used to improve the feedback accuracy of terminal equipment feeding back HARQ feedback information. The method includes: the network device acquires first indication information for instructing the terminal equipment to feed back HARQ feedback information, the first indication information is based on the information quantity and the information corresponding to the data channel on the reference time slot and at least one first time slot / or obtained from the amount of information corresponding to the control channel, the reference time slot and the at least one first time slot are respectively on different component carriers among the plurality of component carriers served by the terminal, and the reference time slot The starting moment of the at least one first time slot is the same as that of the at least one first time slot; wherein, the time slot lengths of at least two component carriers among the plurality of component carriers are different; the network device sends to the terminal device at least indicating the indication information of the first indication information.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a hybrid automatic repeat request (HARQ) feedback method and device. Background technique [0002] In a next generation radio access system (Next generation RAT, NR), due to a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) timing relationship can be dynamically configured. As an example, the terminal device receives the downlink data packet sent by the network device in the nth time slot, and feeds back the HARQ feedback information in the 4th time slot after the nth time slot, and the terminal device receives the downlink data packet in the n+1th time slot The downlink data packet sent by the network device may be received in the nth time slot, and the HARQ feedback information may be fed back in the third time slot after the n+1th time slot. [0003] When the network device allocates multiple serving cells for the terminal device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/18H04L1/16H04W72/04
CPCH04L1/1607H04L1/1812H04L5/0055H04L5/0094H04W72/0453H04W72/0446H04W72/23H04L5/001H04L1/1854H04L1/1861H04L1/1864H04L1/1819H04W72/21H04W72/535
Inventor 时洁张兴炜黎超冯淑兰
Owner HUAWEI TECH CO LTD
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