Data transmission method, user equipment and base station

A technology of user equipment and base station, applied in the field of communication, can solve the problems of lack of communication mechanism to distinguish between two RTT or TTI lengths, and easy conflicts

Inactive Publication Date: 2015-03-25
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Since a new RTT or TTI with a shorter length is added, and in the prior art, there is no comm...

Method used

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  • Data transmission method, user equipment and base station
  • Data transmission method, user equipment and base station
  • Data transmission method, user equipment and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0288] See figure 1 An embodiment of the data transmission method in the embodiment of the present invention includes:

[0289] 101. The user equipment receives a control message sent by a base station.

[0290] The user equipment receives the control message sent by the base station. Specifically, the control message is used to determine the RTT length corresponding to the data transmitted between the user equipment and the base station and the base station to transmit the data.

[0291] In a specific application, the control message may include a control message sent through high-level signaling, such as a radio resource control (RRC, Radio Resource Control) configuration message; it may also include a control message sent through physical layer signaling, such as the following control message Information (DCI, Downlink Control Information) message; exemplary, the high-level signaling includes dedicated signaling and broadcast messages.

[0292] Specifically, the RTT length can be ...

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PUM

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Abstract

The embodiment of the invention discloses a data transmission method, user equipment and a base station. The data transmission method, the user equipment and the base station are used for solving the problem about conflicts in the data transmission process under the condition of scene coexistence of different kinds of processing delay. The method includes the steps that the user equipment receives a control message sent by the base station, the control message is used for determining RTT length corresponding to data transmitted between the user equipment and the base station; the user equipment determines the RTT length corresponding to the data transmitted between the user equipment and the base station according to the control message; data transmission between the user equipment and the base station is achieved according to the RTT length.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular, to a data transmission method, user equipment and a base station. Background technique [0002] In future 5G (fifth generation communications) technology, with the continuous expansion of air interface technology and applications, reducing latency has become one of the key performance indicators. For example, the end-to-end delay requirement for Real-time remote computing for mobile terminals (real-time remote monitoring of mobile terminals) is less than 10ms, and the delay requirement for Traffic efficiency and safety (efficient and safe business) is 5ms. However, the current Long Term Evolution (LTE) The transmission time interval (TTI, transmission time interval) of Long Term Evolution is 1ms, and the round-trip transmission time (RTT, Round-Trip Time) is 8ms. That is, a retransmission will cause a delay of 8ms. Uplink transmission The time required is shown in the tab...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04W74/0841H04L47/283H04L1/1671H04L1/1835H04L1/1874H04L5/0053H04L5/0055H04L1/1822H04L5/0057H04W72/0446H04L1/00H04L47/286
Inventor 张丹丹权威张戬李秉肇
Owner SHANGHAI HUAWEI TECH CO LTD
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