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Method and equipment for transmitting HARQ-ACK information

A transmission module and time slot technology, applied in the field of HARQ-ACK information transmission, to avoid confusion, reduce the number of bits, and reduce feedback overhead

Active 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

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Method used

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  • Method and equipment for transmitting HARQ-ACK information
  • Method and equipment for transmitting HARQ-ACK information
  • Method and equipment for transmitting HARQ-ACK information

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0095]For a time slot, it is assumed that the initial OFDM symbol and the number of symbols of the PDSCH can only take some specific values, so that the overhead of indicating the time resource of the PDSCH can be reduced. All possible PDSCH time resources constitute a set T for configuring PDSCH scheduling, and each element of the above set T indicates a possible starting OFDM symbol and the number of symbols of a PDSCH. Each element of the above set T may also indicate a PDSCH type. Each element of the above set T may also indicate the scheduling delay K0. The set T may only include all possible PDSCH time resources corresponding to one BWP. When multiple BWPs are configured, corresponding to an element of the set K, the set T may include all possible PDSCH time resources of the multiple BWPs. Or, when multiple BWPs are configured, corresponding to an element of the set K, assuming that the set K1 of a BWP includes an element of the set K, the set T may include all possibl...

Embodiment 2

[0135]For a time slot, it is assumed that the initial OFDM symbol and the number of symbols of the PDSCH can only take some specific values, so that the overhead of indicating the time resource of the PDSCH can be reduced. All possible PDSCH time resources constitute a set T for configuring PDSCH scheduling, and each element of the above set T indicates a possible starting OFDM symbol and the number of symbols of a PDSCH. Each element of the above set T may also indicate a PDSCH type. The set T may only include all possible PDSCH time resources corresponding to one BWP. When multiple BWPs are configured, corresponding to an element of the set K, the set T may include all possible PDSCH time resources of the multiple BWPs. Or, when multiple BWPs are configured, corresponding to an element of the set K, assuming that the set K1 of a BWP includes an element of the set K, the set T may include all possible PDSCH time resources of the BWP.

[0136] For example, the above set T ma...

Embodiment 3

[0211] For a time slot, it is assumed that the K0 of the PDSCH, the start OFDM symbol and the number of symbols can only take some specific values, so that the overhead of indicating the time resources of the PDSCH can be reduced. All possible PDSCH time resources constitute a set T for configuring PDSCH scheduling, and each element of the above set T may indicate a possible PDSCH K0, a starting OFDM symbol and the number of symbols. Each element of the above set T may also indicate a PDSCH type. The set T may only include all possible PDSCH time resources corresponding to one BWP. When multiple BWPs are configured, corresponding to an element of the set K, the set T may include all possible PDSCH time resources of the multiple BWPs. Or, when multiple BWPs are configured, corresponding to an element of the set K, assuming that the set K1 of a BWP includes an element of the set K, the set T may include all possible PDSCH time resources of the BWP.

[0212] For example, the ab...

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Abstract

The invention provides a method for transmitting HARQ-ACK information. The method is characterized by comprising the following steps that: UE (User Equipment) detects a PDCCH (Physical Downlink Control Channel) and receives a PDSCH scheduled by the PDCCH; for a time slot of a carrier, HARQ-ACK position and HARQ-ACK bits occupied by the time slot are determined according to the configured time slotpattern and the configured PDCCH detection position; the UE generates an HARQ-ACK codebook according to the HARQ-ACK position and HARQ-ACK bits of the time slot And transmits the HARQ-ACK information. By adopting the method provided by the invention, the HARQ-ACK bits needing to be fed back in each time slot is reduced; feedback overhead is reduced, the bit number of the generated HARQ-ACK codebook is semi-statically changed, so that confusion between the base station and the UE is avoided.

Description

technical field [0001] The present invention relates to wireless communication system technology, in particular to a method and equipment for transmitting HARQ-ACK information. Background technique [0002] With the rapid development of the information industry, especially the growing demand from the mobile Internet and the Internet of Things (Internet of Things or IoT for short), unprecedented challenges are brought to future mobile communication technologies. To cope with this unprecedented challenge, the communication industry and academia have launched extensive fifth-generation (5G) mobile communication technology research towards 2020. According to the work plan organized by 3GPP (Third Generation Partnership Project), work on the first phase of 5G is already underway. [0003] Downlink transmission refers to sending signals from the base station to the user equipment UE. Downlink signals include data signals, control signals and reference signals (pilots). Here, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00H04W72/04H04W72/12
CPCH04L1/1812H04L5/0055H04L5/0007H04W72/0446H04W72/23H04L1/1854H04L1/1861H04L5/1469H04L1/1887H04L1/1893H04W72/0453H04W72/21
Inventor 李迎阳王轶
Owner BEIJING SAMSUNG TELECOM R&D CENT
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