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Uplink transmission method and terminal

A transmission method and terminal technology, applied in the field of communication, can solve the problems of low uplink transmission efficiency of terminals, achieve the effects of increasing uplink transmission opportunities, improving throughput and delay, and improving efficiency

Active Publication Date: 2021-03-26
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide an uplink transmission method and a terminal to solve the problem of low uplink transmission efficiency of existing terminals

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0061] In this example 1, the network system uses FBE, and for the UE in the connected state (CONNECTED), the UE configures the corresponding FFP, and configures the UE to detect at least one of the COT indication information, the initial signal and the preamble signal in each FFP . If the UE detects at least one of the COT indication information, the initial signal and the preamble signal, the UE may perform uplink transmission or downlink reception according to the indication content of at least one of the COT indication information, the initial signal and the preamble signal. If in a certain FFP, the UE does not detect at least one of the COT indication information, the initial signal and the preamble signal, and the UE has configured uplink transmission in the FFP, the UE may cancel the transmission of the configured uplink transmission.

[0062] If the UE supports cross-FFP scheduling, such as figure 2 As shown, the UE receives PDCCH in the first FFP, which schedules th...

example 2

[0065] In this example 2, the network system uses FBE. For the UE in the connected state (CONNECTED), the UE is configured to detect SFI PDCCH, and the UE does not have a semi-static slot format configuration, that is, there is no tdd-UL-DL-ConfigurationCommon and / or tdd -UL-DL-ConfigurationDedicated; or, the UE is configured to detect SFI PDCCH, and the configured uplink transmission is configured on the flexible symbol configured in the semi-static slot format. Such as image 3As shown, if the UE does not detect the SFI PDCCH at the SFI PDCCH detection opportunity in a certain SFI detection period, the UE can perform idle channel detection before transmitting the configured uplink transmission; if the channel is detected to be idle, the UE transmits the SFI PDCCH configured uplink transmission; or, if the channel is detected to be busy, the UE does not transmit the configured uplink transmission.

example 3

[0067] When the UE is configured with CA (Carrier Aggregation, carrier aggregation), the UE can receive or transmit on multiple component carriers, and the UE needs to know which component carrier the DCI corresponds to. This information can be implicit or explicit, depending on whether cross-carrier scheduling is used, and cross-carrier scheduling is implemented independently for each component carrier of each UE through RRC signaling. Whether to use cross-carrier scheduling is configured by high-layer signaling.

[0068] For non-cross-carrier scheduling, each component carrier is configured with a PDCCH, and the downlink scheduling information on the component carrier is all for this component carrier. For uplink authorization, there is an association between uplink and downlink component carriers, and each uplink component carrier corresponds to an associated downlink component carrier, and this association information is part of the system information. Therefore, from the...

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PUM

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Abstract

The invention provides an uplink transmission method and a terminal. The uplink transmission method comprises the steps of determining a terminal behavior mode according to at least one of configuration information of a terminal, received downlink control information, whether a serving cell where first information is located is an authorized frequency band or not, and whether a serving cell wherefirst uplink transmission is located is an authorized frequency band or not; and performing uplink transmission based on the terminal behavior mode. According to the embodiment of the invention, the uplink transmission opportunity of the terminal can be increased, the throughput and time delay of uplink transmission are improved, and the uplink transmission efficiency is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink transmission method and a terminal. Background technique [0002] At present, if a terminal such as UE (User Equipment, user equipment) is configured to detect SFI (slot format indicator, slot format indicator) sent through PDCCH (Physical Downlink Control Channel, physical downlink control channel), that is, it is configured to detect SFI PDCCH, and The configured uplink transmission is configured on flexible symbols configured in a semi-static slot format, or the UE does not have a semi-static slot format configured, then the UE will not be able to detect the SFI PDCCH Transmit the uplink transmission of this configuration. However, in the unlicensed frequency band, the base station needs to perform idle channel detection before sending the SFI PDCCH, and the SFI PDCCH can only be sent when the channel is idle, otherwise it cannot be sent. However, if...

Claims

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Application Information

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IPC IPC(8): H04W24/02
CPCH04W24/02H04L5/1469H04L5/0053H04W72/1268H04W72/51H04W72/566H04W72/23
Inventor 李娜潘学明姜蕾沈晓冬
Owner VIVO MOBILE COMM CO LTD
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