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HARQ-ACK information feedback method and device

A technology for information feedback and feedback information, which is applied in the field of HARQ-ACK information feedback, and can solve the problem that there is no ideal solution and indication of PUCCH resources.

Pending Publication Date: 2019-07-19
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the new radio (NR, New Radio) communication system, before the radio resource control is established, that is, before the upper layer configures the resource set of the PUCCH for transmitting HARQ-ACK to the UE, the ARI in the DCI in the PDCCH of the PDSCH cannot be scheduled. field indicates PUCCH resources, how to indicate the PUCCH resources of HARQ-ACK at this time still has no ideal solution

Method used

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  • HARQ-ACK information feedback method and device

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Embodiment 1

[0071] In this embodiment, the number of bits of the PUCCH resource indication information used to indicate the PUCCH resource in the PDCCH received by the UE is preset by the protocol. The specific embodiment steps of HARQ-ACK transmission are as follows:

[0072] Step 210: The UE determines a set of PUCCH resources for transmitting HARQ-ACK feedback information by receiving the indication in the RMSI.

[0073] N-bit information can be used in the RMSI to indicate a set of PUCCH resources for transmitting HARQ-ACK feedback information.

[0074] For example, the 4-bit information in the RMSI indicates a set of up to 16 PUCCH resources, as shown in Table 1, where the 4-bit information in the RMSI can be called R-ARI, that is, the ARI in the RMSI, and the The number of PUCCH resources is preset by the protocol.

[0075] Table 1: Mapping relationship between A-ARI field and PUCCH resource set

[0076]

[0077]

[0078] The parameters of each PUCCH resource in each resour...

Embodiment 2

[0101] In this embodiment, the number of bits in the ARI field used to indicate the PUCCH resource in the PDCCH received by the UE can be changed. The specific embodiment steps of HARQ-ACK transmission are as follows:

[0102] Step 310: The UE determines a set of PUCCH resources for transmitting HARQ-ACK feedback information by receiving the indication in the RMSI.

[0103] N-bit information can be used in the RMSI to indicate a set of PUCCH resources for transmitting HARQ-ACK feedback information.

[0104] For example, the 4-bit information in the RMSI indicates a set of up to 16 PUCCH resources, as shown in Table 3, where the 4-bit information in the RMSI can be called R-ARI, that is, the ARI in the RMSI, and the The number of PUCCH resources is preset by the protocol and can be different.

[0105] Table 3: Mapping relationship between A-ARI field and PUCCH resource set

[0106]

[0107]

[0108] The parameters of each PUCCH resource in each resource set are preset ...

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Abstract

The invention discloses an HARQ-ACK information feedback method, and the method is characterized by comprising: UE determining a PUCCH resource for transmitting HARQ-ACK feedback information accordingto received broadcast information and physical layer information; and the UE transmitting the HARQ-ACK on the determined PUCCH resource. According to user load conditions of different service cells,the number of resources in a PUCCH resource set for transmitting HARQ-ACK feedback information, which is indicated by RMSI (Redundant Minimal System Information), is reasonably determined. Therefore,users in the serving cell can access the system in time, and the bit number of the ARI used for dynamically indicating the PUCCH in the PDCCH is not wasted.

Description

technical field [0001] The present invention relates to wireless communication system technology, in particular to a HARQ-ACK information feedback method and equipment. Background technique [0002] The transmission in the wireless communication system includes: the transmission from the base station (gNB) to the user equipment (UE, User Equipment) (called downlink transmission), the corresponding time slot is called the downlink time slot, and the transmission from the UE to the base station (called Uplink transmission), the corresponding time slot is called uplink time slot. [0003] In the downlink communication of the wireless communication system, the reliability of downlink data reception is ensured through a Hybrid Automatic Repeat reQuest (HARQ, Hybrid Automatic Repeat reQuest) technology. The downlink data is transmitted by the base station to the UE through the Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel), and the UE informs the base ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00
CPCH04L1/1861H04L1/1812H04L5/0055
Inventor 付景兴喻斌钱辰熊琦
Owner BEIJING SAMSUNG TELECOM R&D CENT
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