Uplink transmission method and terminal

A terminal and multi-input technology, applied in the field of communication, to achieve the effect of perfecting the processing flow

Active Publication Date: 2021-03-05
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the embodiments of the present invention is to provide a method and terminal for uplink transmission, so as to solve the problem of how the terminal performs uplink transmission if the network configures the terminal to support 3Tx at the same time, but the terminal only supports 2Tx

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  • Uplink transmission method and terminal
  • Uplink transmission method and terminal
  • Uplink transmission method and terminal

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Embodiment Construction

[0018] In order to facilitate the understanding of the embodiments of the present invention, several technical points are introduced below:

[0019] Technical point 1:

[0020] In the following four scenarios, NR UE needs to support 3Tx at the same time:

[0021] Scenario 1: NR uplink (Uplink, UL) carrier aggregation (Carrier Aggregation, CA), for example: CA of 2 carrier components (Component Carrier, CC), one of which supports 2Tx, and the other CC supports 1Tx.

[0022] Scenario 2: Dual connectivity (EN-DC for short) between the wireless access network of the fourth generation mobile communication technology (4G) and the NR of the fifth generation mobile communication technology (Fifth generation, 5G), such as Long Term Evolution (Long Term Evolution, LTE) supports 1Tx, and NR supports 2Tx.

[0023] Scenario 3: Dual connection between 5G NR and 4G wireless access network (referred to as NE-DC), for example: NR supports 2Tx, and LTE supports 1Tx.

[0024] Scenario 4: Supp...

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Abstract

The embodiment of the invention provides an uplink transmission method and a terminal, the method comprises the steps: when the terminal is configured with at least two uplink carriers and at least one of the at least two uplink carriers needs to be sent by two sending antennas, not being expected to be scheduled to simultaneously perform uplink transmission on the at least two uplink carriers. The problem of how to perform uplink transmission by the terminal if the terminal needs to support 3Tx at the same time but the terminal only supports 2Tx is solved, and the processing flow of uplink transmission of the UE is perfected.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method and terminal for uplink transmission. Background technique [0002] If a new air interface (New Radio, NR) terminal (for example, user equipment (User Equipment, UE)) needs to support 3 transmit antennas (referred to as 3 transmissions (3Tx)) at the same time, it needs to support 3 transmission channels and related power amplifiers (Power Amplifier, PA), filter, antenna and other components. The need to support 3Tx at the same time will undoubtedly increase the terminal cost and affect the layout of components in the terminal. Therefore, generally speaking, NR terminals only support 2Tx or 1Tx. [0003] If the network is configured that the terminal needs to support 3Tx at the same time, but the terminal only supports 2Tx, how the terminal performs uplink transmission is an urgent problem to be solved. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12H04L5/00H04W76/16
CPCH04W72/044H04W72/1268H04L5/0048H04W76/16H04L5/0091H04W76/15H04L5/0023H04L5/22H04L5/001H04W76/34H04W72/23H04L5/0032H04L5/0042H04L5/0051
Inventor 姜大洁潘学明
Owner VIVO MOBILE COMM CO LTD
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