A data transmission method, terminal equipment and network equipment
A data transmission method and technology for terminal equipment, applied in the field of terminal equipment, network equipment, and data transmission methods, can solve problems such as inability to meet low-latency services, and achieve the effects of shortening transmission time interval, shortening sending time, and shortening time interval
Active Publication Date: 2020-11-06
HUAWEI TECH CO LTD
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Problems solved by technology
Therefore, in the existing LTE system, the TTI (Transmission Time Interval, transmission time interval) transmission mechanism based on one subframe can no longer meet the needs of low-latency services
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[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] see figure 1 , is a schematic diagram of a wireless communication network system provided by an embodiment of the present invention, and the wireless communication network system includes a terminal device 110 and a network device 120 .
[0054] The terminal device 110 involved in this embodiment of the present invention may be a device that provides voice and / or data connectivity to users, a handheld device with a wireless connection function, or other...
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The present invention provides a data transmission method. A terminal device receives at least one piece of downlink data sent by a network device on a first time domain resource; then, sends receiving status information to the network device on a second time domain resource; The transmission time interval of data is less than the transmission time interval of receiving status information, and the transmission time interval of any downlink data is less than 1 ms. Moreover, the time interval between the second time domain resource and the first time domain resource is less than 4ms. The data transmission method shortens the transmission time interval of the downlink data, and shortens the time interval between the sending time of receiving status information and the receiving time of the at least one piece of downlink data, thereby reducing the time delay. Moreover, the transmission time interval of the uplink data is greater than the transmission time interval of the downlink data, which enhances the receiving performance of the receiving status information and improves the probability that the network equipment correctly receives the receiving status information returned by the terminal equipment.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission method, terminal equipment and network equipment. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) system, after receiving the downlink data sent by the network device, the terminal device needs to send HARQ-ACK (Hybrid Automatic Repeat Request-Acknowledgment, hybrid automatic repeat request correct response) feedback information to the network device . If the downlink data is received correctly, the terminal device returns ACK (Acknowledgment, correct response) information; if the downlink data is received incorrectly, the terminal device returns NACK (Non-Acknowledgment, error response) information. Wherein, the HARQ-ACK feedback information may be carried on PUCCH (Physical Uplink Control Channel, physical uplink control channel), or PUSCH (physical uplink shared channel, physical uplink shared chan...
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IPC IPC(8): H04L5/14
CPCH04L5/14H04L1/1825H04L1/1812H04L5/0007H04L5/005H04L5/0082H04L5/0094H04W72/0446H04L5/0055H04W28/04H04W72/1273
Inventor 李超君吕永霞
Owner HUAWEI TECH CO LTD