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

A data transmission method, receiving and sending technology, applied in the field of communication, can solve problems such as data disorder

Active Publication Date: 2018-08-14
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 transmitting end device
  • Data transmission method and device, receiving end device and transmitting end device
  • Data transmission method and device, receiving end device and transmitting 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 invention relates to a data transmission method and device, a receiving end device, a transmitting end device, and a computer readable storage medium. The data transmission method includesthe steps: receiving at least one data packet sent from the transmitting end in a reordering window, wherein each data packet in the at least one data packet carries a sequence number SN; if at leastone data packet according to the SN sequence is received in the reordering window, analyzing the received data packet, and submitting the analyzed data portion to the upper layer; and if a data packet is received not in the SN sequence in the reordering window and a reordering timer is not started at present, and starting the reordering timer and setting the SN corresponding to the data packet that triggers and starts the reordering timer as SN of the data packet which is currently received not in the SN sequence, and if all the out-of-order packets before triggering and starting the SN of the reordering timer are successively received, stopping and resetting the reordering timer.

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 Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0001H04L1/0006
Inventor 江小威
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD