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Method, device and user equipment for determining harq feedback pucch resources

A technology of resources and resource sets, which is applied in the direction of error prevention/detection, digital transmission system, and error prevention using the return channel, which can solve the problems that the UE cannot perform HARQ feedback in time and cannot determine the PUCCH resources.

Active Publication Date: 2021-08-20
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

If the number of bits that the UE needs to feed back in a certain time slot is 2 bits or 10 bits, it needs to select PUCCH resource set 1 or PUCCH resource set 3, and the PUCCH resources in PUCCH resource set 1 or PUCCH resource set 3 are more than 4 At this time, the actual PUCCH resources cannot be determined through ARI, which leads to the failure of the UE to perform HARQ feedback in time

Method used

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  • Method, device and user equipment for determining harq feedback pucch resources
  • Method, device and user equipment for determining harq feedback pucch resources

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] An embodiment of the present invention provides a method for determining HARQ feedback PUCCH resources, such as figure 1 As shown, the method includes:

[0036] S11. On the determined feedback time slot, determine a PUCCH resource set according to the number of bits of the HARQ ACK / NACK to be fed back in the feedback time slot.

[00...

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Abstract

The present invention provides a method, device and user equipment for determining HARQ feedback PUCCH resources. The method includes: on the determined feedback time slot, determining a PUCCH resource set according to the number of bits of the HARQ ACK / NACK that needs to be fed back in the feedback time slot; determining available PUCCH resources from the PUCCH resource set; The ARI in the DCI determines the PUCCH resource for actually transmitting the HARQ feedback from the available PUCCH resources. The present invention can ensure the successful determination of PUCCH resources for HARQ feedback, and ensure that UE performs HARQ feedback in time.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and user equipment for determining HARQ feedback PUCCH resources. Background technique [0002] In 5G (or called NR, New Radio), the base station schedules UE (User Equipment, user equipment) through DCI (Downlink Control Information, downlink control information), and DCI can indicate downlink assignment (DLAssignment) or uplink grant (UL Grant) . The downlink assignment is used to indicate to the UE the data transmitted on the PDSCH (PhysicalDownlink Shared Channel, Physical Downlink Shared Channel). At this time, the DCI needs to indicate the modulation and coding format of the data transmission, and the time-frequency resources occupied by the PDSCH (such as whether it is the same as the DCI) The same time slot (Slot), frequency domain resources used on PDSCH such as PRB (Physical Resource Block, physical resource block) position and q...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1812
Inventor 邓云周欢
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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