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Data transmission method, transmitting device, and receiving device

A data transmission method and technology for sending equipment, applied in the field of sending equipment and receiving equipment, and data transmission methods, to achieve the effect of shortening time delay and meeting the requirements of business on time delay

Inactive Publication Date: 2019-01-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a data transmission method, a sending device and a receiving device, which are used to solve the problem of how to send the time-delay requirement when the terminal device needs to send the data of the service with high time-delay requirement after the end of the LCP in the prior art Higher business data technical issues

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  • Data transmission method, transmitting device, and receiving device
  • Data transmission method, transmitting device, and receiving device
  • Data transmission method, transmitting device, and receiving device

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Embodiment Construction

[0100] The future 5G communication system introduces eMBB service, URLLC service, mMTC service, etc. Among them, the URLLC service has higher requirements on data transmission delay than other services. For example, the URLLC service requires a data transmission delay of less than 0.5 milliseconds.

[0101] Currently, in an LTE communication system, a terminal device sends data to a network device through a MAC PDU. Specifically, after receiving the uplink scheduling grant sent by the network device, the terminal device can perform LCP processing on the data located in each LC of the terminal device according to the uplink transmission resource for sending the MAC PDU indicated by the uplink scheduling grant, and generate a MAC PDU . Then, the terminal device can send the MAC PDU to the network device through the uplink transmission resources indicated by the uplink scheduling grant, so as to realize the transmission of various service data. At this time, if there is new da...

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Abstract

The embodiments of the present invention provide a data transmission method, a transmitting device, and a receiving device. The method includes the following steps that: when at least one first data unit on a first service bearer is to be sent, a transmitting device re-allocates all or part of bit positions in a medium access control (MAC) protocol data unit (PDU) which are allocated to at least one second data unit to the at least one first data unit of the first service bearer; and the transmitting device transmits the at least one first data unit to a receiving device through the MAC PDU. With the data transmission method, the transmitting device, and the receiving device provided by the embodiments of the present invention adopted, the delay of the data of services that are transmittedby the first service bearer can be shortened, and a requirement for delay, of the services corresponding to the data transmitted by the first service bearer, can be satisfied.

Description

technical field [0001] The embodiments of the present application relate to communication technologies, and in particular, to a data transmission method, a sending device, and a receiving device. Background technique [0002] Currently, in a Long Term Evolution (LTE) communication system, a terminal device can send a Medium Access Control (MAC) Protocol Data Unit (Protocol Data Unit, PDU). Wherein, the MAC PDU may carry data of multiple logical channels (Logical Channel, LC). The logical channel mentioned here is a channel for transmitting data, and different logical channels are used to transmit data of different services. [0003] In the LTE communication system, after receiving the uplink scheduling grant sent by the network device, the above-mentioned terminal device can logically channel the current data of each LC of the terminal device according to the uplink transmission resource for sending the MAC PDU indicated by the uplink scheduling grant. Priority (Logical C...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/04H04W72/20H04W72/12
Inventor 王婷婷
Owner HUAWEI TECH CO LTD