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Data transmission method and device, receiving end device and sending end device

A data transmission method, receiving and sending technology, applied in the field of communication, can solve problems such as data disorder, achieve the effect of avoiding time delay, reducing resources, and solving data disorder problems

Active Publication Date: 2021-08-24
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present application discloses a data transmission method and device, a receiver device, a sender device, and a computer-readable storage medium, so as to solve the data out-of-sequence problem of QoS flow during DRB remapping, and avoid additional time delay

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  • Data transmission method and device, receiving end device and sending end device
  • Data transmission method and device, receiving end device and sending end device
  • Data transmission method and device, receiving end device and sending end device

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Embodiment Construction

[0115] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0116] In the embodiment of the present application, for the convenience of description, the newly introduced protocol layer is called the service data adaptation protocol (Service data adaptation protocol, SDAP) layer, wherein, the SDAP layer is located at the upper layer of the PDCP layer, and is responsible for converting the upper layer The quality of service flow (QoS flow) is mapped to a d...

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PUM

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Abstract

The present disclosure relates to a data transmission method and device, a receiver device, a sender device, and a computer-readable storage medium. Wherein, the data transmission method includes: receiving at least one data packet sent by the sender within the reordering window, wherein each data packet in the at least one data packet carries a sequence number SN; If at least one data packet arrives sequentially, analyze the received data packet and submit the parsed data part to the upper layer; if a data packet that is not in the order of SN is received within the reordering window and is currently not started reordering timer, start the reordering timer, and set the SN corresponding to the data packet that triggers the start of the reordering timer to the SN of the currently received data packet that is not in the order of the SN. All out-of-sequence packets before the SN of the reordering timer are stopped and the reordering timer is reset.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a data transmission method and device, a receiver device, a sender device, and a computer-readable storage medium. Background technique [0002] With the development of communication technology, the fifth generation of mobile communication technology (5th Generation, 5G for short) appears. The 5G new air interface (new radio, NR) user plane introduces a new protocol layer on top of the existing packet data convergence protocol (PDCP) layer. The new protocol layer can perform mapping between quality of service flow (QoS flow) and data bearer (DRB), and can also add QoS flow identification (ID) to uplink packets and downlink packets. [0003] A QoS flow may be remapped from the current DRB to another DRB. When QoS flow remapping occurs, the data that has been submitted to a DRB before the QoS flow remapping continues to be sent through the DRB, and subseque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0001H04L1/0006
Inventor 江小威
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD