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Uplink transmission method and device

A transmission method and time-domain position technology, applied in the field of communication, can solve problems such as UCI cannot be transmitted normally, and achieve the effect of avoiding blocking and ensuring transmission performance

Pending Publication Date: 2022-04-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an uplink transmission method and device to solve the problem of how to transmit two PUSCHs with different priorities and when the PUCCH and PUSCH overlap in the time domain, the UCI on the PUCCH may not be transmitted normally.

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  • Uplink transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0280] Embodiment 1: Assuming that the terminal is configured with a CG PUSCH transmission on a carrier, and the physical layer priority corresponding to this CG PUSCH is high priority, assuming that the terminal receives a PDCCH carrying an uplink scheduling grant (UL grant), Scheduling to transmit a dynamic grant (Dynamic Grant, DG) PUSCH on this carrier, and the time domain resource of this DG PUSCH overlaps with the time domain resource of CG PUSCH, and the physical layer priority corresponding to this DG PUSCH is low priority;

[0281] Terminal side:

[0282] Determine whether the end time of the PDCCH scheduling the DG PUSCH is not later than T2 before the start time of the CG PUSCH CG time, where T2 CG is a time determined according to the transmission parameters of CG PUSCH;

[0283] Judging whether the start time of the DG PUSCH is not earlier than the start time of the CG PUSCH;

[0284] When both of the above two judgments are yes, it is considered that the time ...

Embodiment 2

[0295] Embodiment 2: Based on the above embodiment 1, it is assumed that there is also a PUCCH with a high priority corresponding to the physical layer overlapping with CGPUSCH, and according to the multiplexing transmission rule when PUCCH and PUSCH with the same priority overlap, the DLgrant corresponding to PUCCH and PUCCH and PUCCH The channel with the earliest starting point between CG PUSCHs satisfies the time interval not less than T2mux, and the PDSCH scheduled by DLgrant (that is, the PDSCH corresponding to the PDSCH that transmits HARQ-ACK on PUCCH) and the channel with the earliest starting point between PUCCH and CG PUSCH The time interval between them is not less than T1mux, where T1mux determines the processing time according to the relevant configuration and parameters of PDSCH, DL grant and PUCCH, and is used to simulate the preparation time for UCI transmission. T2mux is based on CGPUSCH, PUCCH, UL grant, DL The relevant configuration and parameters of the gran...

Embodiment 3

[0306] Embodiment 3: Assume that the terminal schedules a DG PUSCH1 transmission on carrier 1 through the PDCCH carrying UL grant, and schedules a DG PUSCH2 transmission on carrier 2 through the PDCCH carrying UL grant, and both PUSCH1 and PUSCH2 are connected to a carrier HARQ- The PUCCHs of the ACK overlap, and the physical layer priorities of the two DG PUSCHs and PUCCHs are the same, and both DG PUSCHs are configured to enable UL skipping, that is, if there is no data transmission, the MAC may not generate PDUs for the DGPUSCH;

[0307] Terminal side:

[0308] Determine whether the scheduling of the two DG PUSCH and PUCCH satisfies T1mux and T2mux, that is, the interval between the DL grant and UL grant and the channel starting point of the earliest channel among the overlapping PUSCH1, PUSCH2 and PUCCH is not less than T2mux, and the interval between the PDSCH and the overlapping PUSCH1 , the interval between the channel starting point of the earliest channel in PUSCH2 an...

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Abstract

The invention provides an uplink transmission method and device, and the method comprises the steps: determining that a starting symbol of a first-class uplink channel is not earlier than a preset time domain position under the condition that the first-class uplink channel and a second-class uplink channel are overlapped in a time domain; wherein the first type of uplink channel is a first type of physical uplink shared channel (PUSCH), the second type of uplink channel is a second type of PUSCH, the first type of PUSCH and the second type of PUSCH are transmitted on the same carrier, the first type of PUSCH is a PUSCH with a corresponding PDCCH or a PUSCH without a corresponding PDCCH or a CG PUSCH, the second type of PUSCH is a PUSCH without a corresponding PDCCH or the second type of PUSCH is a configuration permission CG PUSCH; or, the first type of uplink channel is a physical uplink control channel (PUCCH), and the second type of uplink channel is a physical uplink shared channel (PUSCH).

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to an uplink transmission method and device. Background technique [0002] In the new wireless communication system (5Generation New RAT, 5G NR), uplink channel transmission with different physical layer priorities is supported, and the same terminal (Terminal / User Equipment, UE, also called user equipment) has different physical layer There may be resource conflicts between priority uplink channels. For example, on the same carrier, there is overlap between the symbols occupied by uplink channels with different priorities. In order to avoid multiple uplink channels on the same carrier at the same time Parallel transmission leads to an increase in peak-to-average power ratio (Peak-to-Average Power Ratio, PAPR) and a problem of power limitation. At this time, it needs to select one channel for transmission and discard other channels. At present, it is only stipulate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/10H04L5/00
CPCH04L5/0053H04W72/21H04W72/56H04W72/04H04L5/00
Inventor 高雪娟司倩倩
Owner DATANG MOBILE COMM EQUIP CO LTD