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Method for sending uci and user terminal

A carrier and numerical technology, applied in the field of sending UCI, methods and user terminals, can solve the problems of increasing the complexity of PUSCH processing, etc., and achieve the effect of improving transmission reliability, reducing complexity, and reducing peak-to-average ratio

Active Publication Date: 2021-11-09
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the simple carrier selection technique of LTE is not suitable for NR
In addition, NR can also configure grant-free or configured scheduling (configured scheduling) PUSCH for UE to support Ultra-reliable low latency communication (URLLC) services, simply using LTE carrier selection technology will Increase the processing complexity of authorization-free or configuration-scheduled PUSCH

Method used

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  • Method for sending uci and user terminal
  • Method for sending uci and user terminal
  • Method for sending uci and user terminal

Examples

Experimental program
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Effect test

specific Embodiment 1

[0058] Such as image 3 Shown is an example where a long PUCCH format and PUSCH exist at the same time. According to the above method of judging whether PUCCH and PUSCH overlap, it can be judged that PUSCH-3 does not overlap with PUCCH, and PUSCH-1 and PUSCH-2 overlap with PUCCH. During transmission, PUSCH-3 is transmitted alone, PUCCH is not transmitted, and UCI is multiplexed and transmitted on PUSCH-1.

[0059] Such as Figure 4 Shown is an example where a short PUCCH format and PUSCH exist at the same time. According to the above method of judging whether PUCCH and PUSCH overlap, it can be judged that PUSCH-2 overlaps PUCCH, while PUSCH-1 and PUSCH-3 do not overlap PUCCH. During transmission, PUSCH-1 and PUSCH-3 are transmitted separately, PUCCH is not transmitted, and UCI is multiplexed and transmitted on PUSCH-2.

specific Embodiment 2

[0061] Such as Figure 5 As shown, when PUCCH overlaps with multiple PUSCHs, PUCCH is not transmitted, and PUSCH-2 is selected to be multiplexed to transmit UCI, because the start symbol subscript of PUSCH-2 is equal to the start symbol subscript of PUCCH, and the end symbol subscript Less than PUSCH-1. In this way, the transmission delay of the UCI can be lowered, thereby reducing the transmission delay of the air interface.

specific Embodiment 3

[0063] Such as Image 6 As shown, if PUSCH-2 is configured as configured scheduling PUSCH for transmitting Ultra Reliable Low Latency Communications (URLLC) services, then PUSCH-1 with non-configured scheduling is preferred, and PUSCH-1 is multiplexed for UCI transmission. In this way, it can avoid the impact of multiplexing PUSCH-2 to transmit UCI on URLLC services, reduce the processing delay of URLLC uplink data, avoid blind detection of URLLC uplink data by network-side equipment such as base stations, and maintain the code of URLLC uplink data. rate does not drop.

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Abstract

The invention provides a method for sending UCI and a user terminal, belonging to the technical field of communication. Wherein, the method for sending UCI includes: when the physical uplink control channel PUCCH and the physical uplink shared channel PUSCH overlap in time, select and send UCI according to at least one of the following parameters: uplink data scheduling type; numerical features. The technical scheme of the present invention can support UE to select the best PUSCH to carry UCI when there are multiple candidate PUSCHs to send, thereby reducing system processing delay and peak-to-average ratio of UE.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method for sending UCI and a user terminal. Background technique [0002] In a long term evolution (Long Term Evolution, LTE) system, when a user terminal (User Equipment, UE) needs to send uplink data and uplink control information (uplink control information, UCI) simultaneously in a certain subframe, the UE can The data carries uplink control signaling, thereby reducing the power peak-to-average ratio. [0003] The LTE system also supports carrier aggregation (Carrier Aggregation, CA) technology, and the UE can send uplink data on multiple uplink carriers. When a physical uplink shared channel (PUSCH) transmission exists on multiple uplink carriers at the same time in a subframe, and the UE needs to send UCI in the subframe, the UE selects one of the PUSCHs to carry UCI, that is, in the selected UCI is multiplexed in PUSCH and sent. The UE simply selects the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/02H04W72/04H04L5/00
CPCH04W72/02H04L5/0053H04L5/0058H04W72/21H04W72/1268H04L5/0057H04L5/0044H04L5/0091H04L5/0087H04L5/001H04L5/0064H04L27/26025H04W72/23H04B7/0626H04W72/0446
Inventor 纪子超潘学明
Owner VIVO MOBILE COMM CO LTD
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